imgui_draw.cpp (234442B)
1 // dear imgui, v1.91.0 2 // (drawing and font code) 3 4 /* 5 6 Index of this file: 7 8 // [SECTION] STB libraries implementation 9 // [SECTION] Style functions 10 // [SECTION] ImDrawList 11 // [SECTION] ImTriangulator, ImDrawList concave polygon fill 12 // [SECTION] ImDrawListSplitter 13 // [SECTION] ImDrawData 14 // [SECTION] Helpers ShadeVertsXXX functions 15 // [SECTION] ImFontConfig 16 // [SECTION] ImFontAtlas 17 // [SECTION] ImFontAtlas glyph ranges helpers 18 // [SECTION] ImFontGlyphRangesBuilder 19 // [SECTION] ImFont 20 // [SECTION] ImGui Internal Render Helpers 21 // [SECTION] Decompression code 22 // [SECTION] Default font data (ProggyClean.ttf) 23 24 */ 25 26 #if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS) 27 #define _CRT_SECURE_NO_WARNINGS 28 #endif 29 30 #ifndef IMGUI_DEFINE_MATH_OPERATORS 31 #define IMGUI_DEFINE_MATH_OPERATORS 32 #endif 33 34 #include "imgui.h" 35 #ifndef IMGUI_DISABLE 36 #include "imgui_internal.h" 37 #ifdef IMGUI_ENABLE_FREETYPE 38 #include "imgui_freetype.h" 39 #endif 40 41 #include <stdio.h> // vsnprintf, sscanf, printf 42 43 // Visual Studio warnings 44 #ifdef _MSC_VER 45 #pragma warning (disable: 4127) // condition expression is constant 46 #pragma warning (disable: 4505) // unreferenced local function has been removed (stb stuff) 47 #pragma warning (disable: 4996) // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen 48 #pragma warning (disable: 26451) // [Static Analyzer] Arithmetic overflow : Using operator 'xxx' on a 4 byte value and then casting the result to a 8 byte value. Cast the value to the wider type before calling operator 'xxx' to avoid overflow(io.2). 49 #pragma warning (disable: 26812) // [Static Analyzer] The enum type 'xxx' is unscoped. Prefer 'enum class' over 'enum' (Enum.3). [MSVC Static Analyzer) 50 #endif 51 52 // Clang/GCC warnings with -Weverything 53 #if defined(__clang__) 54 #if __has_warning("-Wunknown-warning-option") 55 #pragma clang diagnostic ignored "-Wunknown-warning-option" // warning: unknown warning group 'xxx' // not all warnings are known by all Clang versions and they tend to be rename-happy.. so ignoring warnings triggers new warnings on some configuration. Great! 56 #endif 57 #pragma clang diagnostic ignored "-Wunknown-pragmas" // warning: unknown warning group 'xxx' 58 #pragma clang diagnostic ignored "-Wold-style-cast" // warning: use of old-style cast // yes, they are more terse. 59 #pragma clang diagnostic ignored "-Wfloat-equal" // warning: comparing floating point with == or != is unsafe // storing and comparing against same constants ok. 60 #pragma clang diagnostic ignored "-Wglobal-constructors" // warning: declaration requires a global destructor // similar to above, not sure what the exact difference is. 61 #pragma clang diagnostic ignored "-Wsign-conversion" // warning: implicit conversion changes signedness 62 #pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant" // warning: zero as null pointer constant // some standard header variations use #define NULL 0 63 #pragma clang diagnostic ignored "-Wcomma" // warning: possible misuse of comma operator here 64 #pragma clang diagnostic ignored "-Wreserved-id-macro" // warning: macro name is a reserved identifier 65 #pragma clang diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function // using printf() is a misery with this as C++ va_arg ellipsis changes float to double. 66 #pragma clang diagnostic ignored "-Wimplicit-int-float-conversion" // warning: implicit conversion from 'xxx' to 'float' may lose precision 67 #pragma clang diagnostic ignored "-Wreserved-identifier" // warning: identifier '_Xxx' is reserved because it starts with '_' followed by a capital letter 68 #pragma clang diagnostic ignored "-Wunsafe-buffer-usage" // warning: 'xxx' is an unsafe pointer used for buffer access 69 #elif defined(__GNUC__) 70 #pragma GCC diagnostic ignored "-Wpragmas" // warning: unknown option after '#pragma GCC diagnostic' kind 71 #pragma GCC diagnostic ignored "-Wunused-function" // warning: 'xxxx' defined but not used 72 #pragma GCC diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function 73 #pragma GCC diagnostic ignored "-Wconversion" // warning: conversion to 'xxxx' from 'xxxx' may alter its value 74 #pragma GCC diagnostic ignored "-Wstack-protector" // warning: stack protector not protecting local variables: variable length buffer 75 #pragma GCC diagnostic ignored "-Wclass-memaccess" // [__GNUC__ >= 8] warning: 'memset/memcpy' clearing/writing an object of type 'xxxx' with no trivial copy-assignment; use assignment or value-initialization instead 76 #endif 77 78 //------------------------------------------------------------------------- 79 // [SECTION] STB libraries implementation (for stb_truetype and stb_rect_pack) 80 //------------------------------------------------------------------------- 81 82 // Compile time options: 83 //#define IMGUI_STB_NAMESPACE ImStb 84 //#define IMGUI_STB_TRUETYPE_FILENAME "my_folder/stb_truetype.h" 85 //#define IMGUI_STB_RECT_PACK_FILENAME "my_folder/stb_rect_pack.h" 86 //#define IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION 87 //#define IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION 88 89 #ifdef IMGUI_STB_NAMESPACE 90 namespace IMGUI_STB_NAMESPACE 91 { 92 #endif 93 94 #ifdef _MSC_VER 95 #pragma warning (push) 96 #pragma warning (disable: 4456) // declaration of 'xx' hides previous local declaration 97 #pragma warning (disable: 6011) // (stb_rectpack) Dereferencing NULL pointer 'cur->next'. 98 #pragma warning (disable: 6385) // (stb_truetype) Reading invalid data from 'buffer': the readable size is '_Old_3`kernel_width' bytes, but '3' bytes may be read. 99 #pragma warning (disable: 28182) // (stb_rectpack) Dereferencing NULL pointer. 'cur' contains the same NULL value as 'cur->next' did. 100 #endif 101 102 #if defined(__clang__) 103 #pragma clang diagnostic push 104 #pragma clang diagnostic ignored "-Wunused-function" 105 #pragma clang diagnostic ignored "-Wmissing-prototypes" 106 #pragma clang diagnostic ignored "-Wimplicit-fallthrough" 107 #pragma clang diagnostic ignored "-Wcast-qual" // warning: cast from 'const xxxx *' to 'xxx *' drops const qualifier 108 #endif 109 110 #if defined(__GNUC__) 111 #pragma GCC diagnostic push 112 #pragma GCC diagnostic ignored "-Wtype-limits" // warning: comparison is always true due to limited range of data type [-Wtype-limits] 113 #pragma GCC diagnostic ignored "-Wcast-qual" // warning: cast from type 'const xxxx *' to type 'xxxx *' casts away qualifiers 114 #endif 115 116 #ifndef STB_RECT_PACK_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds) 117 #ifndef IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION // in case the user already have an implementation in another compilation unit 118 #define STBRP_STATIC 119 #define STBRP_ASSERT(x) do { IM_ASSERT(x); } while (0) 120 #define STBRP_SORT ImQsort 121 #define STB_RECT_PACK_IMPLEMENTATION 122 #endif 123 #ifdef IMGUI_STB_RECT_PACK_FILENAME 124 #include IMGUI_STB_RECT_PACK_FILENAME 125 #else 126 #include "imstb_rectpack.h" 127 #endif 128 #endif 129 130 #ifdef IMGUI_ENABLE_STB_TRUETYPE 131 #ifndef STB_TRUETYPE_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds) 132 #ifndef IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION // in case the user already have an implementation in another compilation unit 133 #define STBTT_malloc(x,u) ((void)(u), IM_ALLOC(x)) 134 #define STBTT_free(x,u) ((void)(u), IM_FREE(x)) 135 #define STBTT_assert(x) do { IM_ASSERT(x); } while(0) 136 #define STBTT_fmod(x,y) ImFmod(x,y) 137 #define STBTT_sqrt(x) ImSqrt(x) 138 #define STBTT_pow(x,y) ImPow(x,y) 139 #define STBTT_fabs(x) ImFabs(x) 140 #define STBTT_ifloor(x) ((int)ImFloor(x)) 141 #define STBTT_iceil(x) ((int)ImCeil(x)) 142 #define STBTT_STATIC 143 #define STB_TRUETYPE_IMPLEMENTATION 144 #else 145 #define STBTT_DEF extern 146 #endif 147 #ifdef IMGUI_STB_TRUETYPE_FILENAME 148 #include IMGUI_STB_TRUETYPE_FILENAME 149 #else 150 #include "imstb_truetype.h" 151 #endif 152 #endif 153 #endif // IMGUI_ENABLE_STB_TRUETYPE 154 155 #if defined(__GNUC__) 156 #pragma GCC diagnostic pop 157 #endif 158 159 #if defined(__clang__) 160 #pragma clang diagnostic pop 161 #endif 162 163 #if defined(_MSC_VER) 164 #pragma warning (pop) 165 #endif 166 167 #ifdef IMGUI_STB_NAMESPACE 168 } // namespace ImStb 169 using namespace IMGUI_STB_NAMESPACE; 170 #endif 171 172 //----------------------------------------------------------------------------- 173 // [SECTION] Style functions 174 //----------------------------------------------------------------------------- 175 176 void ImGui::StyleColorsDark(ImGuiStyle* dst) 177 { 178 ImGuiStyle* style = dst ? dst : &ImGui::GetStyle(); 179 ImVec4* colors = style->Colors; 180 181 colors[ImGuiCol_Text] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f); 182 colors[ImGuiCol_TextDisabled] = ImVec4(0.50f, 0.50f, 0.50f, 1.00f); 183 colors[ImGuiCol_WindowBg] = ImVec4(0.06f, 0.06f, 0.06f, 0.94f); 184 colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f); 185 colors[ImGuiCol_PopupBg] = ImVec4(0.08f, 0.08f, 0.08f, 0.94f); 186 colors[ImGuiCol_Border] = ImVec4(0.43f, 0.43f, 0.50f, 0.50f); 187 colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f); 188 colors[ImGuiCol_FrameBg] = ImVec4(0.16f, 0.29f, 0.48f, 0.54f); 189 colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f); 190 colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f); 191 colors[ImGuiCol_TitleBg] = ImVec4(0.04f, 0.04f, 0.04f, 1.00f); 192 colors[ImGuiCol_TitleBgActive] = ImVec4(0.16f, 0.29f, 0.48f, 1.00f); 193 colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.00f, 0.00f, 0.00f, 0.51f); 194 colors[ImGuiCol_MenuBarBg] = ImVec4(0.14f, 0.14f, 0.14f, 1.00f); 195 colors[ImGuiCol_ScrollbarBg] = ImVec4(0.02f, 0.02f, 0.02f, 0.53f); 196 colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.31f, 0.31f, 0.31f, 1.00f); 197 colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.41f, 0.41f, 0.41f, 1.00f); 198 colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.51f, 0.51f, 0.51f, 1.00f); 199 colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f); 200 colors[ImGuiCol_SliderGrab] = ImVec4(0.24f, 0.52f, 0.88f, 1.00f); 201 colors[ImGuiCol_SliderGrabActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f); 202 colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f); 203 colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f); 204 colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f); 205 colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f); 206 colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f); 207 colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f); 208 colors[ImGuiCol_Separator] = colors[ImGuiCol_Border]; 209 colors[ImGuiCol_SeparatorHovered] = ImVec4(0.10f, 0.40f, 0.75f, 0.78f); 210 colors[ImGuiCol_SeparatorActive] = ImVec4(0.10f, 0.40f, 0.75f, 1.00f); 211 colors[ImGuiCol_ResizeGrip] = ImVec4(0.26f, 0.59f, 0.98f, 0.20f); 212 colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f); 213 colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f); 214 colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered]; 215 colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.80f); 216 colors[ImGuiCol_TabSelected] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f); 217 colors[ImGuiCol_TabSelectedOverline] = colors[ImGuiCol_HeaderActive]; 218 colors[ImGuiCol_TabDimmed] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f); 219 colors[ImGuiCol_TabDimmedSelected] = ImLerp(colors[ImGuiCol_TabSelected], colors[ImGuiCol_TitleBg], 0.40f); 220 colors[ImGuiCol_TabDimmedSelectedOverline] = ImVec4(0.50f, 0.50f, 0.50f, 1.00f); 221 colors[ImGuiCol_PlotLines] = ImVec4(0.61f, 0.61f, 0.61f, 1.00f); 222 colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f); 223 colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f); 224 colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f); 225 colors[ImGuiCol_TableHeaderBg] = ImVec4(0.19f, 0.19f, 0.20f, 1.00f); 226 colors[ImGuiCol_TableBorderStrong] = ImVec4(0.31f, 0.31f, 0.35f, 1.00f); // Prefer using Alpha=1.0 here 227 colors[ImGuiCol_TableBorderLight] = ImVec4(0.23f, 0.23f, 0.25f, 1.00f); // Prefer using Alpha=1.0 here 228 colors[ImGuiCol_TableRowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f); 229 colors[ImGuiCol_TableRowBgAlt] = ImVec4(1.00f, 1.00f, 1.00f, 0.06f); 230 colors[ImGuiCol_TextLink] = colors[ImGuiCol_HeaderActive]; 231 colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f); 232 colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f); 233 colors[ImGuiCol_NavHighlight] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f); 234 colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f); 235 colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f); 236 colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.35f); 237 } 238 239 void ImGui::StyleColorsClassic(ImGuiStyle* dst) 240 { 241 ImGuiStyle* style = dst ? dst : &ImGui::GetStyle(); 242 ImVec4* colors = style->Colors; 243 244 colors[ImGuiCol_Text] = ImVec4(0.90f, 0.90f, 0.90f, 1.00f); 245 colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f); 246 colors[ImGuiCol_WindowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.85f); 247 colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f); 248 colors[ImGuiCol_PopupBg] = ImVec4(0.11f, 0.11f, 0.14f, 0.92f); 249 colors[ImGuiCol_Border] = ImVec4(0.50f, 0.50f, 0.50f, 0.50f); 250 colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f); 251 colors[ImGuiCol_FrameBg] = ImVec4(0.43f, 0.43f, 0.43f, 0.39f); 252 colors[ImGuiCol_FrameBgHovered] = ImVec4(0.47f, 0.47f, 0.69f, 0.40f); 253 colors[ImGuiCol_FrameBgActive] = ImVec4(0.42f, 0.41f, 0.64f, 0.69f); 254 colors[ImGuiCol_TitleBg] = ImVec4(0.27f, 0.27f, 0.54f, 0.83f); 255 colors[ImGuiCol_TitleBgActive] = ImVec4(0.32f, 0.32f, 0.63f, 0.87f); 256 colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.40f, 0.40f, 0.80f, 0.20f); 257 colors[ImGuiCol_MenuBarBg] = ImVec4(0.40f, 0.40f, 0.55f, 0.80f); 258 colors[ImGuiCol_ScrollbarBg] = ImVec4(0.20f, 0.25f, 0.30f, 0.60f); 259 colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.40f, 0.40f, 0.80f, 0.30f); 260 colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.40f, 0.40f, 0.80f, 0.40f); 261 colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f); 262 colors[ImGuiCol_CheckMark] = ImVec4(0.90f, 0.90f, 0.90f, 0.50f); 263 colors[ImGuiCol_SliderGrab] = ImVec4(1.00f, 1.00f, 1.00f, 0.30f); 264 colors[ImGuiCol_SliderGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f); 265 colors[ImGuiCol_Button] = ImVec4(0.35f, 0.40f, 0.61f, 0.62f); 266 colors[ImGuiCol_ButtonHovered] = ImVec4(0.40f, 0.48f, 0.71f, 0.79f); 267 colors[ImGuiCol_ButtonActive] = ImVec4(0.46f, 0.54f, 0.80f, 1.00f); 268 colors[ImGuiCol_Header] = ImVec4(0.40f, 0.40f, 0.90f, 0.45f); 269 colors[ImGuiCol_HeaderHovered] = ImVec4(0.45f, 0.45f, 0.90f, 0.80f); 270 colors[ImGuiCol_HeaderActive] = ImVec4(0.53f, 0.53f, 0.87f, 0.80f); 271 colors[ImGuiCol_Separator] = ImVec4(0.50f, 0.50f, 0.50f, 0.60f); 272 colors[ImGuiCol_SeparatorHovered] = ImVec4(0.60f, 0.60f, 0.70f, 1.00f); 273 colors[ImGuiCol_SeparatorActive] = ImVec4(0.70f, 0.70f, 0.90f, 1.00f); 274 colors[ImGuiCol_ResizeGrip] = ImVec4(1.00f, 1.00f, 1.00f, 0.10f); 275 colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.78f, 0.82f, 1.00f, 0.60f); 276 colors[ImGuiCol_ResizeGripActive] = ImVec4(0.78f, 0.82f, 1.00f, 0.90f); 277 colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered]; 278 colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.80f); 279 colors[ImGuiCol_TabSelected] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f); 280 colors[ImGuiCol_TabSelectedOverline] = colors[ImGuiCol_HeaderActive]; 281 colors[ImGuiCol_TabDimmed] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f); 282 colors[ImGuiCol_TabDimmedSelected] = ImLerp(colors[ImGuiCol_TabSelected], colors[ImGuiCol_TitleBg], 0.40f); 283 colors[ImGuiCol_TabDimmedSelectedOverline] = colors[ImGuiCol_HeaderActive]; 284 colors[ImGuiCol_PlotLines] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f); 285 colors[ImGuiCol_PlotLinesHovered] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f); 286 colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f); 287 colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f); 288 colors[ImGuiCol_TableHeaderBg] = ImVec4(0.27f, 0.27f, 0.38f, 1.00f); 289 colors[ImGuiCol_TableBorderStrong] = ImVec4(0.31f, 0.31f, 0.45f, 1.00f); // Prefer using Alpha=1.0 here 290 colors[ImGuiCol_TableBorderLight] = ImVec4(0.26f, 0.26f, 0.28f, 1.00f); // Prefer using Alpha=1.0 here 291 colors[ImGuiCol_TableRowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f); 292 colors[ImGuiCol_TableRowBgAlt] = ImVec4(1.00f, 1.00f, 1.00f, 0.07f); 293 colors[ImGuiCol_TextLink] = colors[ImGuiCol_HeaderActive]; 294 colors[ImGuiCol_TextSelectedBg] = ImVec4(0.00f, 0.00f, 1.00f, 0.35f); 295 colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f); 296 colors[ImGuiCol_NavHighlight] = colors[ImGuiCol_HeaderHovered]; 297 colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f); 298 colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f); 299 colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f); 300 } 301 302 // Those light colors are better suited with a thicker font than the default one + FrameBorder 303 void ImGui::StyleColorsLight(ImGuiStyle* dst) 304 { 305 ImGuiStyle* style = dst ? dst : &ImGui::GetStyle(); 306 ImVec4* colors = style->Colors; 307 308 colors[ImGuiCol_Text] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f); 309 colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f); 310 colors[ImGuiCol_WindowBg] = ImVec4(0.94f, 0.94f, 0.94f, 1.00f); 311 colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f); 312 colors[ImGuiCol_PopupBg] = ImVec4(1.00f, 1.00f, 1.00f, 0.98f); 313 colors[ImGuiCol_Border] = ImVec4(0.00f, 0.00f, 0.00f, 0.30f); 314 colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f); 315 colors[ImGuiCol_FrameBg] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f); 316 colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f); 317 colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f); 318 colors[ImGuiCol_TitleBg] = ImVec4(0.96f, 0.96f, 0.96f, 1.00f); 319 colors[ImGuiCol_TitleBgActive] = ImVec4(0.82f, 0.82f, 0.82f, 1.00f); 320 colors[ImGuiCol_TitleBgCollapsed] = ImVec4(1.00f, 1.00f, 1.00f, 0.51f); 321 colors[ImGuiCol_MenuBarBg] = ImVec4(0.86f, 0.86f, 0.86f, 1.00f); 322 colors[ImGuiCol_ScrollbarBg] = ImVec4(0.98f, 0.98f, 0.98f, 0.53f); 323 colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.69f, 0.69f, 0.69f, 0.80f); 324 colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.49f, 0.49f, 0.49f, 0.80f); 325 colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.49f, 0.49f, 0.49f, 1.00f); 326 colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f); 327 colors[ImGuiCol_SliderGrab] = ImVec4(0.26f, 0.59f, 0.98f, 0.78f); 328 colors[ImGuiCol_SliderGrabActive] = ImVec4(0.46f, 0.54f, 0.80f, 0.60f); 329 colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f); 330 colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f); 331 colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f); 332 colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f); 333 colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f); 334 colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f); 335 colors[ImGuiCol_Separator] = ImVec4(0.39f, 0.39f, 0.39f, 0.62f); 336 colors[ImGuiCol_SeparatorHovered] = ImVec4(0.14f, 0.44f, 0.80f, 0.78f); 337 colors[ImGuiCol_SeparatorActive] = ImVec4(0.14f, 0.44f, 0.80f, 1.00f); 338 colors[ImGuiCol_ResizeGrip] = ImVec4(0.35f, 0.35f, 0.35f, 0.17f); 339 colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f); 340 colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f); 341 colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered]; 342 colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.90f); 343 colors[ImGuiCol_TabSelected] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f); 344 colors[ImGuiCol_TabSelectedOverline] = colors[ImGuiCol_HeaderActive]; 345 colors[ImGuiCol_TabDimmed] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f); 346 colors[ImGuiCol_TabDimmedSelected] = ImLerp(colors[ImGuiCol_TabSelected], colors[ImGuiCol_TitleBg], 0.40f); 347 colors[ImGuiCol_TabDimmedSelectedOverline] = ImVec4(0.26f, 0.59f, 1.00f, 1.00f); 348 colors[ImGuiCol_PlotLines] = ImVec4(0.39f, 0.39f, 0.39f, 1.00f); 349 colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f); 350 colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f); 351 colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.45f, 0.00f, 1.00f); 352 colors[ImGuiCol_TableHeaderBg] = ImVec4(0.78f, 0.87f, 0.98f, 1.00f); 353 colors[ImGuiCol_TableBorderStrong] = ImVec4(0.57f, 0.57f, 0.64f, 1.00f); // Prefer using Alpha=1.0 here 354 colors[ImGuiCol_TableBorderLight] = ImVec4(0.68f, 0.68f, 0.74f, 1.00f); // Prefer using Alpha=1.0 here 355 colors[ImGuiCol_TableRowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f); 356 colors[ImGuiCol_TableRowBgAlt] = ImVec4(0.30f, 0.30f, 0.30f, 0.09f); 357 colors[ImGuiCol_TextLink] = colors[ImGuiCol_HeaderActive]; 358 colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f); 359 colors[ImGuiCol_DragDropTarget] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f); 360 colors[ImGuiCol_NavHighlight] = colors[ImGuiCol_HeaderHovered]; 361 colors[ImGuiCol_NavWindowingHighlight] = ImVec4(0.70f, 0.70f, 0.70f, 0.70f); 362 colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.20f); 363 colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f); 364 } 365 366 //----------------------------------------------------------------------------- 367 // [SECTION] ImDrawList 368 //----------------------------------------------------------------------------- 369 370 ImDrawListSharedData::ImDrawListSharedData() 371 { 372 memset(this, 0, sizeof(*this)); 373 for (int i = 0; i < IM_ARRAYSIZE(ArcFastVtx); i++) 374 { 375 const float a = ((float)i * 2 * IM_PI) / (float)IM_ARRAYSIZE(ArcFastVtx); 376 ArcFastVtx[i] = ImVec2(ImCos(a), ImSin(a)); 377 } 378 ArcFastRadiusCutoff = IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC_R(IM_DRAWLIST_ARCFAST_SAMPLE_MAX, CircleSegmentMaxError); 379 } 380 381 void ImDrawListSharedData::SetCircleTessellationMaxError(float max_error) 382 { 383 if (CircleSegmentMaxError == max_error) 384 return; 385 386 IM_ASSERT(max_error > 0.0f); 387 CircleSegmentMaxError = max_error; 388 for (int i = 0; i < IM_ARRAYSIZE(CircleSegmentCounts); i++) 389 { 390 const float radius = (float)i; 391 CircleSegmentCounts[i] = (ImU8)((i > 0) ? IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, CircleSegmentMaxError) : IM_DRAWLIST_ARCFAST_SAMPLE_MAX); 392 } 393 ArcFastRadiusCutoff = IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC_R(IM_DRAWLIST_ARCFAST_SAMPLE_MAX, CircleSegmentMaxError); 394 } 395 396 // Initialize before use in a new frame. We always have a command ready in the buffer. 397 // In the majority of cases, you would want to call PushClipRect() and PushTextureID() after this. 398 void ImDrawList::_ResetForNewFrame() 399 { 400 // Verify that the ImDrawCmd fields we want to memcmp() are contiguous in memory. 401 IM_STATIC_ASSERT(offsetof(ImDrawCmd, ClipRect) == 0); 402 IM_STATIC_ASSERT(offsetof(ImDrawCmd, TextureId) == sizeof(ImVec4)); 403 IM_STATIC_ASSERT(offsetof(ImDrawCmd, VtxOffset) == sizeof(ImVec4) + sizeof(ImTextureID)); 404 if (_Splitter._Count > 1) 405 _Splitter.Merge(this); 406 407 CmdBuffer.resize(0); 408 IdxBuffer.resize(0); 409 VtxBuffer.resize(0); 410 Flags = _Data->InitialFlags; 411 memset(&_CmdHeader, 0, sizeof(_CmdHeader)); 412 _VtxCurrentIdx = 0; 413 _VtxWritePtr = NULL; 414 _IdxWritePtr = NULL; 415 _ClipRectStack.resize(0); 416 _TextureIdStack.resize(0); 417 _Path.resize(0); 418 _Splitter.Clear(); 419 CmdBuffer.push_back(ImDrawCmd()); 420 _FringeScale = 1.0f; 421 } 422 423 void ImDrawList::_ClearFreeMemory() 424 { 425 CmdBuffer.clear(); 426 IdxBuffer.clear(); 427 VtxBuffer.clear(); 428 Flags = ImDrawListFlags_None; 429 _VtxCurrentIdx = 0; 430 _VtxWritePtr = NULL; 431 _IdxWritePtr = NULL; 432 _ClipRectStack.clear(); 433 _TextureIdStack.clear(); 434 _Path.clear(); 435 _Splitter.ClearFreeMemory(); 436 } 437 438 ImDrawList* ImDrawList::CloneOutput() const 439 { 440 ImDrawList* dst = IM_NEW(ImDrawList(_Data)); 441 dst->CmdBuffer = CmdBuffer; 442 dst->IdxBuffer = IdxBuffer; 443 dst->VtxBuffer = VtxBuffer; 444 dst->Flags = Flags; 445 return dst; 446 } 447 448 void ImDrawList::AddDrawCmd() 449 { 450 ImDrawCmd draw_cmd; 451 draw_cmd.ClipRect = _CmdHeader.ClipRect; // Same as calling ImDrawCmd_HeaderCopy() 452 draw_cmd.TextureId = _CmdHeader.TextureId; 453 draw_cmd.VtxOffset = _CmdHeader.VtxOffset; 454 draw_cmd.IdxOffset = IdxBuffer.Size; 455 456 IM_ASSERT(draw_cmd.ClipRect.x <= draw_cmd.ClipRect.z && draw_cmd.ClipRect.y <= draw_cmd.ClipRect.w); 457 CmdBuffer.push_back(draw_cmd); 458 } 459 460 // Pop trailing draw command (used before merging or presenting to user) 461 // Note that this leaves the ImDrawList in a state unfit for further commands, as most code assume that CmdBuffer.Size > 0 && CmdBuffer.back().UserCallback == NULL 462 void ImDrawList::_PopUnusedDrawCmd() 463 { 464 while (CmdBuffer.Size > 0) 465 { 466 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1]; 467 if (curr_cmd->ElemCount != 0 || curr_cmd->UserCallback != NULL) 468 return;// break; 469 CmdBuffer.pop_back(); 470 } 471 } 472 473 void ImDrawList::AddCallback(ImDrawCallback callback, void* callback_data) 474 { 475 IM_ASSERT_PARANOID(CmdBuffer.Size > 0); 476 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1]; 477 IM_ASSERT(curr_cmd->UserCallback == NULL); 478 if (curr_cmd->ElemCount != 0) 479 { 480 AddDrawCmd(); 481 curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1]; 482 } 483 curr_cmd->UserCallback = callback; 484 curr_cmd->UserCallbackData = callback_data; 485 486 AddDrawCmd(); // Force a new command after us (see comment below) 487 } 488 489 // Compare ClipRect, TextureId and VtxOffset with a single memcmp() 490 #define ImDrawCmd_HeaderSize (offsetof(ImDrawCmd, VtxOffset) + sizeof(unsigned int)) 491 #define ImDrawCmd_HeaderCompare(CMD_LHS, CMD_RHS) (memcmp(CMD_LHS, CMD_RHS, ImDrawCmd_HeaderSize)) // Compare ClipRect, TextureId, VtxOffset 492 #define ImDrawCmd_HeaderCopy(CMD_DST, CMD_SRC) (memcpy(CMD_DST, CMD_SRC, ImDrawCmd_HeaderSize)) // Copy ClipRect, TextureId, VtxOffset 493 #define ImDrawCmd_AreSequentialIdxOffset(CMD_0, CMD_1) (CMD_0->IdxOffset + CMD_0->ElemCount == CMD_1->IdxOffset) 494 495 // Try to merge two last draw commands 496 void ImDrawList::_TryMergeDrawCmds() 497 { 498 IM_ASSERT_PARANOID(CmdBuffer.Size > 0); 499 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1]; 500 ImDrawCmd* prev_cmd = curr_cmd - 1; 501 if (ImDrawCmd_HeaderCompare(curr_cmd, prev_cmd) == 0 && ImDrawCmd_AreSequentialIdxOffset(prev_cmd, curr_cmd) && curr_cmd->UserCallback == NULL && prev_cmd->UserCallback == NULL) 502 { 503 prev_cmd->ElemCount += curr_cmd->ElemCount; 504 CmdBuffer.pop_back(); 505 } 506 } 507 508 // Our scheme may appears a bit unusual, basically we want the most-common calls AddLine AddRect etc. to not have to perform any check so we always have a command ready in the stack. 509 // The cost of figuring out if a new command has to be added or if we can merge is paid in those Update** functions only. 510 void ImDrawList::_OnChangedClipRect() 511 { 512 // If current command is used with different settings we need to add a new command 513 IM_ASSERT_PARANOID(CmdBuffer.Size > 0); 514 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1]; 515 if (curr_cmd->ElemCount != 0 && memcmp(&curr_cmd->ClipRect, &_CmdHeader.ClipRect, sizeof(ImVec4)) != 0) 516 { 517 AddDrawCmd(); 518 return; 519 } 520 IM_ASSERT(curr_cmd->UserCallback == NULL); 521 522 // Try to merge with previous command if it matches, else use current command 523 ImDrawCmd* prev_cmd = curr_cmd - 1; 524 if (curr_cmd->ElemCount == 0 && CmdBuffer.Size > 1 && ImDrawCmd_HeaderCompare(&_CmdHeader, prev_cmd) == 0 && ImDrawCmd_AreSequentialIdxOffset(prev_cmd, curr_cmd) && prev_cmd->UserCallback == NULL) 525 { 526 CmdBuffer.pop_back(); 527 return; 528 } 529 530 curr_cmd->ClipRect = _CmdHeader.ClipRect; 531 } 532 533 void ImDrawList::_OnChangedTextureID() 534 { 535 // If current command is used with different settings we need to add a new command 536 IM_ASSERT_PARANOID(CmdBuffer.Size > 0); 537 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1]; 538 if (curr_cmd->ElemCount != 0 && curr_cmd->TextureId != _CmdHeader.TextureId) 539 { 540 AddDrawCmd(); 541 return; 542 } 543 IM_ASSERT(curr_cmd->UserCallback == NULL); 544 545 // Try to merge with previous command if it matches, else use current command 546 ImDrawCmd* prev_cmd = curr_cmd - 1; 547 if (curr_cmd->ElemCount == 0 && CmdBuffer.Size > 1 && ImDrawCmd_HeaderCompare(&_CmdHeader, prev_cmd) == 0 && ImDrawCmd_AreSequentialIdxOffset(prev_cmd, curr_cmd) && prev_cmd->UserCallback == NULL) 548 { 549 CmdBuffer.pop_back(); 550 return; 551 } 552 553 curr_cmd->TextureId = _CmdHeader.TextureId; 554 } 555 556 void ImDrawList::_OnChangedVtxOffset() 557 { 558 // We don't need to compare curr_cmd->VtxOffset != _CmdHeader.VtxOffset because we know it'll be different at the time we call this. 559 _VtxCurrentIdx = 0; 560 IM_ASSERT_PARANOID(CmdBuffer.Size > 0); 561 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1]; 562 //IM_ASSERT(curr_cmd->VtxOffset != _CmdHeader.VtxOffset); // See #3349 563 if (curr_cmd->ElemCount != 0) 564 { 565 AddDrawCmd(); 566 return; 567 } 568 IM_ASSERT(curr_cmd->UserCallback == NULL); 569 curr_cmd->VtxOffset = _CmdHeader.VtxOffset; 570 } 571 572 int ImDrawList::_CalcCircleAutoSegmentCount(float radius) const 573 { 574 // Automatic segment count 575 const int radius_idx = (int)(radius + 0.999999f); // ceil to never reduce accuracy 576 if (radius_idx >= 0 && radius_idx < IM_ARRAYSIZE(_Data->CircleSegmentCounts)) 577 return _Data->CircleSegmentCounts[radius_idx]; // Use cached value 578 else 579 return IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, _Data->CircleSegmentMaxError); 580 } 581 582 // Render-level scissoring. This is passed down to your render function but not used for CPU-side coarse clipping. Prefer using higher-level ImGui::PushClipRect() to affect logic (hit-testing and widget culling) 583 void ImDrawList::PushClipRect(const ImVec2& cr_min, const ImVec2& cr_max, bool intersect_with_current_clip_rect) 584 { 585 ImVec4 cr(cr_min.x, cr_min.y, cr_max.x, cr_max.y); 586 if (intersect_with_current_clip_rect) 587 { 588 ImVec4 current = _CmdHeader.ClipRect; 589 if (cr.x < current.x) cr.x = current.x; 590 if (cr.y < current.y) cr.y = current.y; 591 if (cr.z > current.z) cr.z = current.z; 592 if (cr.w > current.w) cr.w = current.w; 593 } 594 cr.z = ImMax(cr.x, cr.z); 595 cr.w = ImMax(cr.y, cr.w); 596 597 _ClipRectStack.push_back(cr); 598 _CmdHeader.ClipRect = cr; 599 _OnChangedClipRect(); 600 } 601 602 void ImDrawList::PushClipRectFullScreen() 603 { 604 PushClipRect(ImVec2(_Data->ClipRectFullscreen.x, _Data->ClipRectFullscreen.y), ImVec2(_Data->ClipRectFullscreen.z, _Data->ClipRectFullscreen.w)); 605 } 606 607 void ImDrawList::PopClipRect() 608 { 609 _ClipRectStack.pop_back(); 610 _CmdHeader.ClipRect = (_ClipRectStack.Size == 0) ? _Data->ClipRectFullscreen : _ClipRectStack.Data[_ClipRectStack.Size - 1]; 611 _OnChangedClipRect(); 612 } 613 614 void ImDrawList::PushTextureID(ImTextureID texture_id) 615 { 616 _TextureIdStack.push_back(texture_id); 617 _CmdHeader.TextureId = texture_id; 618 _OnChangedTextureID(); 619 } 620 621 void ImDrawList::PopTextureID() 622 { 623 _TextureIdStack.pop_back(); 624 _CmdHeader.TextureId = (_TextureIdStack.Size == 0) ? (ImTextureID)NULL : _TextureIdStack.Data[_TextureIdStack.Size - 1]; 625 _OnChangedTextureID(); 626 } 627 628 // Reserve space for a number of vertices and indices. 629 // You must finish filling your reserved data before calling PrimReserve() again, as it may reallocate or 630 // submit the intermediate results. PrimUnreserve() can be used to release unused allocations. 631 void ImDrawList::PrimReserve(int idx_count, int vtx_count) 632 { 633 // Large mesh support (when enabled) 634 IM_ASSERT_PARANOID(idx_count >= 0 && vtx_count >= 0); 635 if (sizeof(ImDrawIdx) == 2 && (_VtxCurrentIdx + vtx_count >= (1 << 16)) && (Flags & ImDrawListFlags_AllowVtxOffset)) 636 { 637 // FIXME: In theory we should be testing that vtx_count <64k here. 638 // In practice, RenderText() relies on reserving ahead for a worst case scenario so it is currently useful for us 639 // to not make that check until we rework the text functions to handle clipping and large horizontal lines better. 640 _CmdHeader.VtxOffset = VtxBuffer.Size; 641 _OnChangedVtxOffset(); 642 } 643 644 ImDrawCmd* draw_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1]; 645 draw_cmd->ElemCount += idx_count; 646 647 int vtx_buffer_old_size = VtxBuffer.Size; 648 VtxBuffer.resize(vtx_buffer_old_size + vtx_count); 649 _VtxWritePtr = VtxBuffer.Data + vtx_buffer_old_size; 650 651 int idx_buffer_old_size = IdxBuffer.Size; 652 IdxBuffer.resize(idx_buffer_old_size + idx_count); 653 _IdxWritePtr = IdxBuffer.Data + idx_buffer_old_size; 654 } 655 656 // Release the number of reserved vertices/indices from the end of the last reservation made with PrimReserve(). 657 void ImDrawList::PrimUnreserve(int idx_count, int vtx_count) 658 { 659 IM_ASSERT_PARANOID(idx_count >= 0 && vtx_count >= 0); 660 661 ImDrawCmd* draw_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1]; 662 draw_cmd->ElemCount -= idx_count; 663 VtxBuffer.shrink(VtxBuffer.Size - vtx_count); 664 IdxBuffer.shrink(IdxBuffer.Size - idx_count); 665 } 666 667 // Fully unrolled with inline call to keep our debug builds decently fast. 668 void ImDrawList::PrimRect(const ImVec2& a, const ImVec2& c, ImU32 col) 669 { 670 ImVec2 b(c.x, a.y), d(a.x, c.y), uv(_Data->TexUvWhitePixel); 671 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx; 672 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2); 673 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3); 674 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; 675 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col; 676 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col; 677 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col; 678 _VtxWritePtr += 4; 679 _VtxCurrentIdx += 4; 680 _IdxWritePtr += 6; 681 } 682 683 void ImDrawList::PrimRectUV(const ImVec2& a, const ImVec2& c, const ImVec2& uv_a, const ImVec2& uv_c, ImU32 col) 684 { 685 ImVec2 b(c.x, a.y), d(a.x, c.y), uv_b(uv_c.x, uv_a.y), uv_d(uv_a.x, uv_c.y); 686 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx; 687 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2); 688 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3); 689 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col; 690 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col; 691 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col; 692 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col; 693 _VtxWritePtr += 4; 694 _VtxCurrentIdx += 4; 695 _IdxWritePtr += 6; 696 } 697 698 void ImDrawList::PrimQuadUV(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, const ImVec2& uv_a, const ImVec2& uv_b, const ImVec2& uv_c, const ImVec2& uv_d, ImU32 col) 699 { 700 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx; 701 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2); 702 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3); 703 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col; 704 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col; 705 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col; 706 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col; 707 _VtxWritePtr += 4; 708 _VtxCurrentIdx += 4; 709 _IdxWritePtr += 6; 710 } 711 712 // On AddPolyline() and AddConvexPolyFilled() we intentionally avoid using ImVec2 and superfluous function calls to optimize debug/non-inlined builds. 713 // - Those macros expects l-values and need to be used as their own statement. 714 // - Those macros are intentionally not surrounded by the 'do {} while (0)' idiom because even that translates to runtime with debug compilers. 715 #define IM_NORMALIZE2F_OVER_ZERO(VX,VY) { float d2 = VX*VX + VY*VY; if (d2 > 0.0f) { float inv_len = ImRsqrt(d2); VX *= inv_len; VY *= inv_len; } } (void)0 716 #define IM_FIXNORMAL2F_MAX_INVLEN2 100.0f // 500.0f (see #4053, #3366) 717 #define IM_FIXNORMAL2F(VX,VY) { float d2 = VX*VX + VY*VY; if (d2 > 0.000001f) { float inv_len2 = 1.0f / d2; if (inv_len2 > IM_FIXNORMAL2F_MAX_INVLEN2) inv_len2 = IM_FIXNORMAL2F_MAX_INVLEN2; VX *= inv_len2; VY *= inv_len2; } } (void)0 718 719 // TODO: Thickness anti-aliased lines cap are missing their AA fringe. 720 // We avoid using the ImVec2 math operators here to reduce cost to a minimum for debug/non-inlined builds. 721 void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32 col, ImDrawFlags flags, float thickness) 722 { 723 if (points_count < 2 || (col & IM_COL32_A_MASK) == 0) 724 return; 725 726 const bool closed = (flags & ImDrawFlags_Closed) != 0; 727 const ImVec2 opaque_uv = _Data->TexUvWhitePixel; 728 const int count = closed ? points_count : points_count - 1; // The number of line segments we need to draw 729 const bool thick_line = (thickness > _FringeScale); 730 731 if (Flags & ImDrawListFlags_AntiAliasedLines) 732 { 733 // Anti-aliased stroke 734 const float AA_SIZE = _FringeScale; 735 const ImU32 col_trans = col & ~IM_COL32_A_MASK; 736 737 // Thicknesses <1.0 should behave like thickness 1.0 738 thickness = ImMax(thickness, 1.0f); 739 const int integer_thickness = (int)thickness; 740 const float fractional_thickness = thickness - integer_thickness; 741 742 // Do we want to draw this line using a texture? 743 // - For now, only draw integer-width lines using textures to avoid issues with the way scaling occurs, could be improved. 744 // - If AA_SIZE is not 1.0f we cannot use the texture path. 745 const bool use_texture = (Flags & ImDrawListFlags_AntiAliasedLinesUseTex) && (integer_thickness < IM_DRAWLIST_TEX_LINES_WIDTH_MAX) && (fractional_thickness <= 0.00001f) && (AA_SIZE == 1.0f); 746 747 // We should never hit this, because NewFrame() doesn't set ImDrawListFlags_AntiAliasedLinesUseTex unless ImFontAtlasFlags_NoBakedLines is off 748 IM_ASSERT_PARANOID(!use_texture || !(_Data->Font->ContainerAtlas->Flags & ImFontAtlasFlags_NoBakedLines)); 749 750 const int idx_count = use_texture ? (count * 6) : (thick_line ? count * 18 : count * 12); 751 const int vtx_count = use_texture ? (points_count * 2) : (thick_line ? points_count * 4 : points_count * 3); 752 PrimReserve(idx_count, vtx_count); 753 754 // Temporary buffer 755 // The first <points_count> items are normals at each line point, then after that there are either 2 or 4 temp points for each line point 756 _Data->TempBuffer.reserve_discard(points_count * ((use_texture || !thick_line) ? 3 : 5)); 757 ImVec2* temp_normals = _Data->TempBuffer.Data; 758 ImVec2* temp_points = temp_normals + points_count; 759 760 // Calculate normals (tangents) for each line segment 761 for (int i1 = 0; i1 < count; i1++) 762 { 763 const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1; 764 float dx = points[i2].x - points[i1].x; 765 float dy = points[i2].y - points[i1].y; 766 IM_NORMALIZE2F_OVER_ZERO(dx, dy); 767 temp_normals[i1].x = dy; 768 temp_normals[i1].y = -dx; 769 } 770 if (!closed) 771 temp_normals[points_count - 1] = temp_normals[points_count - 2]; 772 773 // If we are drawing a one-pixel-wide line without a texture, or a textured line of any width, we only need 2 or 3 vertices per point 774 if (use_texture || !thick_line) 775 { 776 // [PATH 1] Texture-based lines (thick or non-thick) 777 // [PATH 2] Non texture-based lines (non-thick) 778 779 // The width of the geometry we need to draw - this is essentially <thickness> pixels for the line itself, plus "one pixel" for AA. 780 // - In the texture-based path, we don't use AA_SIZE here because the +1 is tied to the generated texture 781 // (see ImFontAtlasBuildRenderLinesTexData() function), and so alternate values won't work without changes to that code. 782 // - In the non texture-based paths, we would allow AA_SIZE to potentially be != 1.0f with a patch (e.g. fringe_scale patch to 783 // allow scaling geometry while preserving one-screen-pixel AA fringe). 784 const float half_draw_size = use_texture ? ((thickness * 0.5f) + 1) : AA_SIZE; 785 786 // If line is not closed, the first and last points need to be generated differently as there are no normals to blend 787 if (!closed) 788 { 789 temp_points[0] = points[0] + temp_normals[0] * half_draw_size; 790 temp_points[1] = points[0] - temp_normals[0] * half_draw_size; 791 temp_points[(points_count-1)*2+0] = points[points_count-1] + temp_normals[points_count-1] * half_draw_size; 792 temp_points[(points_count-1)*2+1] = points[points_count-1] - temp_normals[points_count-1] * half_draw_size; 793 } 794 795 // Generate the indices to form a number of triangles for each line segment, and the vertices for the line edges 796 // This takes points n and n+1 and writes into n+1, with the first point in a closed line being generated from the final one (as n+1 wraps) 797 // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer. 798 unsigned int idx1 = _VtxCurrentIdx; // Vertex index for start of line segment 799 for (int i1 = 0; i1 < count; i1++) // i1 is the first point of the line segment 800 { 801 const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1; // i2 is the second point of the line segment 802 const unsigned int idx2 = ((i1 + 1) == points_count) ? _VtxCurrentIdx : (idx1 + (use_texture ? 2 : 3)); // Vertex index for end of segment 803 804 // Average normals 805 float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f; 806 float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f; 807 IM_FIXNORMAL2F(dm_x, dm_y); 808 dm_x *= half_draw_size; // dm_x, dm_y are offset to the outer edge of the AA area 809 dm_y *= half_draw_size; 810 811 // Add temporary vertexes for the outer edges 812 ImVec2* out_vtx = &temp_points[i2 * 2]; 813 out_vtx[0].x = points[i2].x + dm_x; 814 out_vtx[0].y = points[i2].y + dm_y; 815 out_vtx[1].x = points[i2].x - dm_x; 816 out_vtx[1].y = points[i2].y - dm_y; 817 818 if (use_texture) 819 { 820 // Add indices for two triangles 821 _IdxWritePtr[0] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 1); // Right tri 822 _IdxWritePtr[3] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[4] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 0); // Left tri 823 _IdxWritePtr += 6; 824 } 825 else 826 { 827 // Add indexes for four triangles 828 _IdxWritePtr[0] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 2); // Right tri 1 829 _IdxWritePtr[3] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[4] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 0); // Right tri 2 830 _IdxWritePtr[6] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[7] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[8] = (ImDrawIdx)(idx1 + 0); // Left tri 1 831 _IdxWritePtr[9] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[10] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[11] = (ImDrawIdx)(idx2 + 1); // Left tri 2 832 _IdxWritePtr += 12; 833 } 834 835 idx1 = idx2; 836 } 837 838 // Add vertexes for each point on the line 839 if (use_texture) 840 { 841 // If we're using textures we only need to emit the left/right edge vertices 842 ImVec4 tex_uvs = _Data->TexUvLines[integer_thickness]; 843 /*if (fractional_thickness != 0.0f) // Currently always zero when use_texture==false! 844 { 845 const ImVec4 tex_uvs_1 = _Data->TexUvLines[integer_thickness + 1]; 846 tex_uvs.x = tex_uvs.x + (tex_uvs_1.x - tex_uvs.x) * fractional_thickness; // inlined ImLerp() 847 tex_uvs.y = tex_uvs.y + (tex_uvs_1.y - tex_uvs.y) * fractional_thickness; 848 tex_uvs.z = tex_uvs.z + (tex_uvs_1.z - tex_uvs.z) * fractional_thickness; 849 tex_uvs.w = tex_uvs.w + (tex_uvs_1.w - tex_uvs.w) * fractional_thickness; 850 }*/ 851 ImVec2 tex_uv0(tex_uvs.x, tex_uvs.y); 852 ImVec2 tex_uv1(tex_uvs.z, tex_uvs.w); 853 for (int i = 0; i < points_count; i++) 854 { 855 _VtxWritePtr[0].pos = temp_points[i * 2 + 0]; _VtxWritePtr[0].uv = tex_uv0; _VtxWritePtr[0].col = col; // Left-side outer edge 856 _VtxWritePtr[1].pos = temp_points[i * 2 + 1]; _VtxWritePtr[1].uv = tex_uv1; _VtxWritePtr[1].col = col; // Right-side outer edge 857 _VtxWritePtr += 2; 858 } 859 } 860 else 861 { 862 // If we're not using a texture, we need the center vertex as well 863 for (int i = 0; i < points_count; i++) 864 { 865 _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col; // Center of line 866 _VtxWritePtr[1].pos = temp_points[i * 2 + 0]; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col_trans; // Left-side outer edge 867 _VtxWritePtr[2].pos = temp_points[i * 2 + 1]; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col_trans; // Right-side outer edge 868 _VtxWritePtr += 3; 869 } 870 } 871 } 872 else 873 { 874 // [PATH 2] Non texture-based lines (thick): we need to draw the solid line core and thus require four vertices per point 875 const float half_inner_thickness = (thickness - AA_SIZE) * 0.5f; 876 877 // If line is not closed, the first and last points need to be generated differently as there are no normals to blend 878 if (!closed) 879 { 880 const int points_last = points_count - 1; 881 temp_points[0] = points[0] + temp_normals[0] * (half_inner_thickness + AA_SIZE); 882 temp_points[1] = points[0] + temp_normals[0] * (half_inner_thickness); 883 temp_points[2] = points[0] - temp_normals[0] * (half_inner_thickness); 884 temp_points[3] = points[0] - temp_normals[0] * (half_inner_thickness + AA_SIZE); 885 temp_points[points_last * 4 + 0] = points[points_last] + temp_normals[points_last] * (half_inner_thickness + AA_SIZE); 886 temp_points[points_last * 4 + 1] = points[points_last] + temp_normals[points_last] * (half_inner_thickness); 887 temp_points[points_last * 4 + 2] = points[points_last] - temp_normals[points_last] * (half_inner_thickness); 888 temp_points[points_last * 4 + 3] = points[points_last] - temp_normals[points_last] * (half_inner_thickness + AA_SIZE); 889 } 890 891 // Generate the indices to form a number of triangles for each line segment, and the vertices for the line edges 892 // This takes points n and n+1 and writes into n+1, with the first point in a closed line being generated from the final one (as n+1 wraps) 893 // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer. 894 unsigned int idx1 = _VtxCurrentIdx; // Vertex index for start of line segment 895 for (int i1 = 0; i1 < count; i1++) // i1 is the first point of the line segment 896 { 897 const int i2 = (i1 + 1) == points_count ? 0 : (i1 + 1); // i2 is the second point of the line segment 898 const unsigned int idx2 = (i1 + 1) == points_count ? _VtxCurrentIdx : (idx1 + 4); // Vertex index for end of segment 899 900 // Average normals 901 float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f; 902 float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f; 903 IM_FIXNORMAL2F(dm_x, dm_y); 904 float dm_out_x = dm_x * (half_inner_thickness + AA_SIZE); 905 float dm_out_y = dm_y * (half_inner_thickness + AA_SIZE); 906 float dm_in_x = dm_x * half_inner_thickness; 907 float dm_in_y = dm_y * half_inner_thickness; 908 909 // Add temporary vertices 910 ImVec2* out_vtx = &temp_points[i2 * 4]; 911 out_vtx[0].x = points[i2].x + dm_out_x; 912 out_vtx[0].y = points[i2].y + dm_out_y; 913 out_vtx[1].x = points[i2].x + dm_in_x; 914 out_vtx[1].y = points[i2].y + dm_in_y; 915 out_vtx[2].x = points[i2].x - dm_in_x; 916 out_vtx[2].y = points[i2].y - dm_in_y; 917 out_vtx[3].x = points[i2].x - dm_out_x; 918 out_vtx[3].y = points[i2].y - dm_out_y; 919 920 // Add indexes 921 _IdxWritePtr[0] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 2); 922 _IdxWritePtr[3] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[4] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 1); 923 _IdxWritePtr[6] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[7] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[8] = (ImDrawIdx)(idx1 + 0); 924 _IdxWritePtr[9] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[10] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[11] = (ImDrawIdx)(idx2 + 1); 925 _IdxWritePtr[12] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[13] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[14] = (ImDrawIdx)(idx1 + 3); 926 _IdxWritePtr[15] = (ImDrawIdx)(idx1 + 3); _IdxWritePtr[16] = (ImDrawIdx)(idx2 + 3); _IdxWritePtr[17] = (ImDrawIdx)(idx2 + 2); 927 _IdxWritePtr += 18; 928 929 idx1 = idx2; 930 } 931 932 // Add vertices 933 for (int i = 0; i < points_count; i++) 934 { 935 _VtxWritePtr[0].pos = temp_points[i * 4 + 0]; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col_trans; 936 _VtxWritePtr[1].pos = temp_points[i * 4 + 1]; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col; 937 _VtxWritePtr[2].pos = temp_points[i * 4 + 2]; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col; 938 _VtxWritePtr[3].pos = temp_points[i * 4 + 3]; _VtxWritePtr[3].uv = opaque_uv; _VtxWritePtr[3].col = col_trans; 939 _VtxWritePtr += 4; 940 } 941 } 942 _VtxCurrentIdx += (ImDrawIdx)vtx_count; 943 } 944 else 945 { 946 // [PATH 4] Non texture-based, Non anti-aliased lines 947 const int idx_count = count * 6; 948 const int vtx_count = count * 4; // FIXME-OPT: Not sharing edges 949 PrimReserve(idx_count, vtx_count); 950 951 for (int i1 = 0; i1 < count; i1++) 952 { 953 const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1; 954 const ImVec2& p1 = points[i1]; 955 const ImVec2& p2 = points[i2]; 956 957 float dx = p2.x - p1.x; 958 float dy = p2.y - p1.y; 959 IM_NORMALIZE2F_OVER_ZERO(dx, dy); 960 dx *= (thickness * 0.5f); 961 dy *= (thickness * 0.5f); 962 963 _VtxWritePtr[0].pos.x = p1.x + dy; _VtxWritePtr[0].pos.y = p1.y - dx; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col; 964 _VtxWritePtr[1].pos.x = p2.x + dy; _VtxWritePtr[1].pos.y = p2.y - dx; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col; 965 _VtxWritePtr[2].pos.x = p2.x - dy; _VtxWritePtr[2].pos.y = p2.y + dx; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col; 966 _VtxWritePtr[3].pos.x = p1.x - dy; _VtxWritePtr[3].pos.y = p1.y + dx; _VtxWritePtr[3].uv = opaque_uv; _VtxWritePtr[3].col = col; 967 _VtxWritePtr += 4; 968 969 _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx + 1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx + 2); 970 _IdxWritePtr[3] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[4] = (ImDrawIdx)(_VtxCurrentIdx + 2); _IdxWritePtr[5] = (ImDrawIdx)(_VtxCurrentIdx + 3); 971 _IdxWritePtr += 6; 972 _VtxCurrentIdx += 4; 973 } 974 } 975 } 976 977 // - We intentionally avoid using ImVec2 and its math operators here to reduce cost to a minimum for debug/non-inlined builds. 978 // - Filled shapes must always use clockwise winding order. The anti-aliasing fringe depends on it. Counter-clockwise shapes will have "inward" anti-aliasing. 979 void ImDrawList::AddConvexPolyFilled(const ImVec2* points, const int points_count, ImU32 col) 980 { 981 if (points_count < 3 || (col & IM_COL32_A_MASK) == 0) 982 return; 983 984 const ImVec2 uv = _Data->TexUvWhitePixel; 985 986 if (Flags & ImDrawListFlags_AntiAliasedFill) 987 { 988 // Anti-aliased Fill 989 const float AA_SIZE = _FringeScale; 990 const ImU32 col_trans = col & ~IM_COL32_A_MASK; 991 const int idx_count = (points_count - 2)*3 + points_count * 6; 992 const int vtx_count = (points_count * 2); 993 PrimReserve(idx_count, vtx_count); 994 995 // Add indexes for fill 996 unsigned int vtx_inner_idx = _VtxCurrentIdx; 997 unsigned int vtx_outer_idx = _VtxCurrentIdx + 1; 998 for (int i = 2; i < points_count; i++) 999 { 1000 _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + ((i - 1) << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_inner_idx + (i << 1)); 1001 _IdxWritePtr += 3; 1002 } 1003 1004 // Compute normals 1005 _Data->TempBuffer.reserve_discard(points_count); 1006 ImVec2* temp_normals = _Data->TempBuffer.Data; 1007 for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++) 1008 { 1009 const ImVec2& p0 = points[i0]; 1010 const ImVec2& p1 = points[i1]; 1011 float dx = p1.x - p0.x; 1012 float dy = p1.y - p0.y; 1013 IM_NORMALIZE2F_OVER_ZERO(dx, dy); 1014 temp_normals[i0].x = dy; 1015 temp_normals[i0].y = -dx; 1016 } 1017 1018 for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++) 1019 { 1020 // Average normals 1021 const ImVec2& n0 = temp_normals[i0]; 1022 const ImVec2& n1 = temp_normals[i1]; 1023 float dm_x = (n0.x + n1.x) * 0.5f; 1024 float dm_y = (n0.y + n1.y) * 0.5f; 1025 IM_FIXNORMAL2F(dm_x, dm_y); 1026 dm_x *= AA_SIZE * 0.5f; 1027 dm_y *= AA_SIZE * 0.5f; 1028 1029 // Add vertices 1030 _VtxWritePtr[0].pos.x = (points[i1].x - dm_x); _VtxWritePtr[0].pos.y = (points[i1].y - dm_y); _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; // Inner 1031 _VtxWritePtr[1].pos.x = (points[i1].x + dm_x); _VtxWritePtr[1].pos.y = (points[i1].y + dm_y); _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col_trans; // Outer 1032 _VtxWritePtr += 2; 1033 1034 // Add indexes for fringes 1035 _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1)); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + (i0 << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1)); 1036 _IdxWritePtr[3] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1)); _IdxWritePtr[4] = (ImDrawIdx)(vtx_outer_idx + (i1 << 1)); _IdxWritePtr[5] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1)); 1037 _IdxWritePtr += 6; 1038 } 1039 _VtxCurrentIdx += (ImDrawIdx)vtx_count; 1040 } 1041 else 1042 { 1043 // Non Anti-aliased Fill 1044 const int idx_count = (points_count - 2)*3; 1045 const int vtx_count = points_count; 1046 PrimReserve(idx_count, vtx_count); 1047 for (int i = 0; i < vtx_count; i++) 1048 { 1049 _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; 1050 _VtxWritePtr++; 1051 } 1052 for (int i = 2; i < points_count; i++) 1053 { 1054 _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx + i - 1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx + i); 1055 _IdxWritePtr += 3; 1056 } 1057 _VtxCurrentIdx += (ImDrawIdx)vtx_count; 1058 } 1059 } 1060 1061 void ImDrawList::_PathArcToFastEx(const ImVec2& center, float radius, int a_min_sample, int a_max_sample, int a_step) 1062 { 1063 if (radius < 0.5f) 1064 { 1065 _Path.push_back(center); 1066 return; 1067 } 1068 1069 // Calculate arc auto segment step size 1070 if (a_step <= 0) 1071 a_step = IM_DRAWLIST_ARCFAST_SAMPLE_MAX / _CalcCircleAutoSegmentCount(radius); 1072 1073 // Make sure we never do steps larger than one quarter of the circle 1074 a_step = ImClamp(a_step, 1, IM_DRAWLIST_ARCFAST_TABLE_SIZE / 4); 1075 1076 const int sample_range = ImAbs(a_max_sample - a_min_sample); 1077 const int a_next_step = a_step; 1078 1079 int samples = sample_range + 1; 1080 bool extra_max_sample = false; 1081 if (a_step > 1) 1082 { 1083 samples = sample_range / a_step + 1; 1084 const int overstep = sample_range % a_step; 1085 1086 if (overstep > 0) 1087 { 1088 extra_max_sample = true; 1089 samples++; 1090 1091 // When we have overstep to avoid awkwardly looking one long line and one tiny one at the end, 1092 // distribute first step range evenly between them by reducing first step size. 1093 if (sample_range > 0) 1094 a_step -= (a_step - overstep) / 2; 1095 } 1096 } 1097 1098 _Path.resize(_Path.Size + samples); 1099 ImVec2* out_ptr = _Path.Data + (_Path.Size - samples); 1100 1101 int sample_index = a_min_sample; 1102 if (sample_index < 0 || sample_index >= IM_DRAWLIST_ARCFAST_SAMPLE_MAX) 1103 { 1104 sample_index = sample_index % IM_DRAWLIST_ARCFAST_SAMPLE_MAX; 1105 if (sample_index < 0) 1106 sample_index += IM_DRAWLIST_ARCFAST_SAMPLE_MAX; 1107 } 1108 1109 if (a_max_sample >= a_min_sample) 1110 { 1111 for (int a = a_min_sample; a <= a_max_sample; a += a_step, sample_index += a_step, a_step = a_next_step) 1112 { 1113 // a_step is clamped to IM_DRAWLIST_ARCFAST_SAMPLE_MAX, so we have guaranteed that it will not wrap over range twice or more 1114 if (sample_index >= IM_DRAWLIST_ARCFAST_SAMPLE_MAX) 1115 sample_index -= IM_DRAWLIST_ARCFAST_SAMPLE_MAX; 1116 1117 const ImVec2 s = _Data->ArcFastVtx[sample_index]; 1118 out_ptr->x = center.x + s.x * radius; 1119 out_ptr->y = center.y + s.y * radius; 1120 out_ptr++; 1121 } 1122 } 1123 else 1124 { 1125 for (int a = a_min_sample; a >= a_max_sample; a -= a_step, sample_index -= a_step, a_step = a_next_step) 1126 { 1127 // a_step is clamped to IM_DRAWLIST_ARCFAST_SAMPLE_MAX, so we have guaranteed that it will not wrap over range twice or more 1128 if (sample_index < 0) 1129 sample_index += IM_DRAWLIST_ARCFAST_SAMPLE_MAX; 1130 1131 const ImVec2 s = _Data->ArcFastVtx[sample_index]; 1132 out_ptr->x = center.x + s.x * radius; 1133 out_ptr->y = center.y + s.y * radius; 1134 out_ptr++; 1135 } 1136 } 1137 1138 if (extra_max_sample) 1139 { 1140 int normalized_max_sample = a_max_sample % IM_DRAWLIST_ARCFAST_SAMPLE_MAX; 1141 if (normalized_max_sample < 0) 1142 normalized_max_sample += IM_DRAWLIST_ARCFAST_SAMPLE_MAX; 1143 1144 const ImVec2 s = _Data->ArcFastVtx[normalized_max_sample]; 1145 out_ptr->x = center.x + s.x * radius; 1146 out_ptr->y = center.y + s.y * radius; 1147 out_ptr++; 1148 } 1149 1150 IM_ASSERT_PARANOID(_Path.Data + _Path.Size == out_ptr); 1151 } 1152 1153 void ImDrawList::_PathArcToN(const ImVec2& center, float radius, float a_min, float a_max, int num_segments) 1154 { 1155 if (radius < 0.5f) 1156 { 1157 _Path.push_back(center); 1158 return; 1159 } 1160 1161 // Note that we are adding a point at both a_min and a_max. 1162 // If you are trying to draw a full closed circle you don't want the overlapping points! 1163 _Path.reserve(_Path.Size + (num_segments + 1)); 1164 for (int i = 0; i <= num_segments; i++) 1165 { 1166 const float a = a_min + ((float)i / (float)num_segments) * (a_max - a_min); 1167 _Path.push_back(ImVec2(center.x + ImCos(a) * radius, center.y + ImSin(a) * radius)); 1168 } 1169 } 1170 1171 // 0: East, 3: South, 6: West, 9: North, 12: East 1172 void ImDrawList::PathArcToFast(const ImVec2& center, float radius, int a_min_of_12, int a_max_of_12) 1173 { 1174 if (radius < 0.5f) 1175 { 1176 _Path.push_back(center); 1177 return; 1178 } 1179 _PathArcToFastEx(center, radius, a_min_of_12 * IM_DRAWLIST_ARCFAST_SAMPLE_MAX / 12, a_max_of_12 * IM_DRAWLIST_ARCFAST_SAMPLE_MAX / 12, 0); 1180 } 1181 1182 void ImDrawList::PathArcTo(const ImVec2& center, float radius, float a_min, float a_max, int num_segments) 1183 { 1184 if (radius < 0.5f) 1185 { 1186 _Path.push_back(center); 1187 return; 1188 } 1189 1190 if (num_segments > 0) 1191 { 1192 _PathArcToN(center, radius, a_min, a_max, num_segments); 1193 return; 1194 } 1195 1196 // Automatic segment count 1197 if (radius <= _Data->ArcFastRadiusCutoff) 1198 { 1199 const bool a_is_reverse = a_max < a_min; 1200 1201 // We are going to use precomputed values for mid samples. 1202 // Determine first and last sample in lookup table that belong to the arc. 1203 const float a_min_sample_f = IM_DRAWLIST_ARCFAST_SAMPLE_MAX * a_min / (IM_PI * 2.0f); 1204 const float a_max_sample_f = IM_DRAWLIST_ARCFAST_SAMPLE_MAX * a_max / (IM_PI * 2.0f); 1205 1206 const int a_min_sample = a_is_reverse ? (int)ImFloor(a_min_sample_f) : (int)ImCeil(a_min_sample_f); 1207 const int a_max_sample = a_is_reverse ? (int)ImCeil(a_max_sample_f) : (int)ImFloor(a_max_sample_f); 1208 const int a_mid_samples = a_is_reverse ? ImMax(a_min_sample - a_max_sample, 0) : ImMax(a_max_sample - a_min_sample, 0); 1209 1210 const float a_min_segment_angle = a_min_sample * IM_PI * 2.0f / IM_DRAWLIST_ARCFAST_SAMPLE_MAX; 1211 const float a_max_segment_angle = a_max_sample * IM_PI * 2.0f / IM_DRAWLIST_ARCFAST_SAMPLE_MAX; 1212 const bool a_emit_start = ImAbs(a_min_segment_angle - a_min) >= 1e-5f; 1213 const bool a_emit_end = ImAbs(a_max - a_max_segment_angle) >= 1e-5f; 1214 1215 _Path.reserve(_Path.Size + (a_mid_samples + 1 + (a_emit_start ? 1 : 0) + (a_emit_end ? 1 : 0))); 1216 if (a_emit_start) 1217 _Path.push_back(ImVec2(center.x + ImCos(a_min) * radius, center.y + ImSin(a_min) * radius)); 1218 if (a_mid_samples > 0) 1219 _PathArcToFastEx(center, radius, a_min_sample, a_max_sample, 0); 1220 if (a_emit_end) 1221 _Path.push_back(ImVec2(center.x + ImCos(a_max) * radius, center.y + ImSin(a_max) * radius)); 1222 } 1223 else 1224 { 1225 const float arc_length = ImAbs(a_max - a_min); 1226 const int circle_segment_count = _CalcCircleAutoSegmentCount(radius); 1227 const int arc_segment_count = ImMax((int)ImCeil(circle_segment_count * arc_length / (IM_PI * 2.0f)), (int)(2.0f * IM_PI / arc_length)); 1228 _PathArcToN(center, radius, a_min, a_max, arc_segment_count); 1229 } 1230 } 1231 1232 void ImDrawList::PathEllipticalArcTo(const ImVec2& center, const ImVec2& radius, float rot, float a_min, float a_max, int num_segments) 1233 { 1234 if (num_segments <= 0) 1235 num_segments = _CalcCircleAutoSegmentCount(ImMax(radius.x, radius.y)); // A bit pessimistic, maybe there's a better computation to do here. 1236 1237 _Path.reserve(_Path.Size + (num_segments + 1)); 1238 1239 const float cos_rot = ImCos(rot); 1240 const float sin_rot = ImSin(rot); 1241 for (int i = 0; i <= num_segments; i++) 1242 { 1243 const float a = a_min + ((float)i / (float)num_segments) * (a_max - a_min); 1244 ImVec2 point(ImCos(a) * radius.x, ImSin(a) * radius.y); 1245 const ImVec2 rel((point.x * cos_rot) - (point.y * sin_rot), (point.x * sin_rot) + (point.y * cos_rot)); 1246 point.x = rel.x + center.x; 1247 point.y = rel.y + center.y; 1248 _Path.push_back(point); 1249 } 1250 } 1251 1252 ImVec2 ImBezierCubicCalc(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, float t) 1253 { 1254 float u = 1.0f - t; 1255 float w1 = u * u * u; 1256 float w2 = 3 * u * u * t; 1257 float w3 = 3 * u * t * t; 1258 float w4 = t * t * t; 1259 return ImVec2(w1 * p1.x + w2 * p2.x + w3 * p3.x + w4 * p4.x, w1 * p1.y + w2 * p2.y + w3 * p3.y + w4 * p4.y); 1260 } 1261 1262 ImVec2 ImBezierQuadraticCalc(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, float t) 1263 { 1264 float u = 1.0f - t; 1265 float w1 = u * u; 1266 float w2 = 2 * u * t; 1267 float w3 = t * t; 1268 return ImVec2(w1 * p1.x + w2 * p2.x + w3 * p3.x, w1 * p1.y + w2 * p2.y + w3 * p3.y); 1269 } 1270 1271 // Closely mimics ImBezierCubicClosestPointCasteljau() in imgui.cpp 1272 static void PathBezierCubicCurveToCasteljau(ImVector<ImVec2>* path, float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4, float tess_tol, int level) 1273 { 1274 float dx = x4 - x1; 1275 float dy = y4 - y1; 1276 float d2 = (x2 - x4) * dy - (y2 - y4) * dx; 1277 float d3 = (x3 - x4) * dy - (y3 - y4) * dx; 1278 d2 = (d2 >= 0) ? d2 : -d2; 1279 d3 = (d3 >= 0) ? d3 : -d3; 1280 if ((d2 + d3) * (d2 + d3) < tess_tol * (dx * dx + dy * dy)) 1281 { 1282 path->push_back(ImVec2(x4, y4)); 1283 } 1284 else if (level < 10) 1285 { 1286 float x12 = (x1 + x2) * 0.5f, y12 = (y1 + y2) * 0.5f; 1287 float x23 = (x2 + x3) * 0.5f, y23 = (y2 + y3) * 0.5f; 1288 float x34 = (x3 + x4) * 0.5f, y34 = (y3 + y4) * 0.5f; 1289 float x123 = (x12 + x23) * 0.5f, y123 = (y12 + y23) * 0.5f; 1290 float x234 = (x23 + x34) * 0.5f, y234 = (y23 + y34) * 0.5f; 1291 float x1234 = (x123 + x234) * 0.5f, y1234 = (y123 + y234) * 0.5f; 1292 PathBezierCubicCurveToCasteljau(path, x1, y1, x12, y12, x123, y123, x1234, y1234, tess_tol, level + 1); 1293 PathBezierCubicCurveToCasteljau(path, x1234, y1234, x234, y234, x34, y34, x4, y4, tess_tol, level + 1); 1294 } 1295 } 1296 1297 static void PathBezierQuadraticCurveToCasteljau(ImVector<ImVec2>* path, float x1, float y1, float x2, float y2, float x3, float y3, float tess_tol, int level) 1298 { 1299 float dx = x3 - x1, dy = y3 - y1; 1300 float det = (x2 - x3) * dy - (y2 - y3) * dx; 1301 if (det * det * 4.0f < tess_tol * (dx * dx + dy * dy)) 1302 { 1303 path->push_back(ImVec2(x3, y3)); 1304 } 1305 else if (level < 10) 1306 { 1307 float x12 = (x1 + x2) * 0.5f, y12 = (y1 + y2) * 0.5f; 1308 float x23 = (x2 + x3) * 0.5f, y23 = (y2 + y3) * 0.5f; 1309 float x123 = (x12 + x23) * 0.5f, y123 = (y12 + y23) * 0.5f; 1310 PathBezierQuadraticCurveToCasteljau(path, x1, y1, x12, y12, x123, y123, tess_tol, level + 1); 1311 PathBezierQuadraticCurveToCasteljau(path, x123, y123, x23, y23, x3, y3, tess_tol, level + 1); 1312 } 1313 } 1314 1315 void ImDrawList::PathBezierCubicCurveTo(const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, int num_segments) 1316 { 1317 ImVec2 p1 = _Path.back(); 1318 if (num_segments == 0) 1319 { 1320 IM_ASSERT(_Data->CurveTessellationTol > 0.0f); 1321 PathBezierCubicCurveToCasteljau(&_Path, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, p4.x, p4.y, _Data->CurveTessellationTol, 0); // Auto-tessellated 1322 } 1323 else 1324 { 1325 float t_step = 1.0f / (float)num_segments; 1326 for (int i_step = 1; i_step <= num_segments; i_step++) 1327 _Path.push_back(ImBezierCubicCalc(p1, p2, p3, p4, t_step * i_step)); 1328 } 1329 } 1330 1331 void ImDrawList::PathBezierQuadraticCurveTo(const ImVec2& p2, const ImVec2& p3, int num_segments) 1332 { 1333 ImVec2 p1 = _Path.back(); 1334 if (num_segments == 0) 1335 { 1336 IM_ASSERT(_Data->CurveTessellationTol > 0.0f); 1337 PathBezierQuadraticCurveToCasteljau(&_Path, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, _Data->CurveTessellationTol, 0);// Auto-tessellated 1338 } 1339 else 1340 { 1341 float t_step = 1.0f / (float)num_segments; 1342 for (int i_step = 1; i_step <= num_segments; i_step++) 1343 _Path.push_back(ImBezierQuadraticCalc(p1, p2, p3, t_step * i_step)); 1344 } 1345 } 1346 1347 static inline ImDrawFlags FixRectCornerFlags(ImDrawFlags flags) 1348 { 1349 /* 1350 IM_STATIC_ASSERT(ImDrawFlags_RoundCornersTopLeft == (1 << 4)); 1351 #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS 1352 // Obsoleted in 1.82 (from February 2021). This code was stripped/simplified and mostly commented in 1.90 (from September 2023) 1353 // - Legacy Support for hard coded ~0 (used to be a suggested equivalent to ImDrawCornerFlags_All) 1354 if (flags == ~0) { return ImDrawFlags_RoundCornersAll; } 1355 // - Legacy Support for hard coded 0x01 to 0x0F (matching 15 out of 16 old flags combinations). Read details in older version of this code. 1356 if (flags >= 0x01 && flags <= 0x0F) { return (flags << 4); } 1357 // We cannot support hard coded 0x00 with 'float rounding > 0.0f' --> replace with ImDrawFlags_RoundCornersNone or use 'float rounding = 0.0f' 1358 #endif 1359 */ 1360 // If this assert triggers, please update your code replacing hardcoded values with new ImDrawFlags_RoundCorners* values. 1361 // Note that ImDrawFlags_Closed (== 0x01) is an invalid flag for AddRect(), AddRectFilled(), PathRect() etc. anyway. 1362 // See details in 1.82 Changelog as well as 2021/03/12 and 2023/09/08 entries in "API BREAKING CHANGES" section. 1363 IM_ASSERT((flags & 0x0F) == 0 && "Misuse of legacy hardcoded ImDrawCornerFlags values!"); 1364 1365 if ((flags & ImDrawFlags_RoundCornersMask_) == 0) 1366 flags |= ImDrawFlags_RoundCornersAll; 1367 1368 return flags; 1369 } 1370 1371 void ImDrawList::PathRect(const ImVec2& a, const ImVec2& b, float rounding, ImDrawFlags flags) 1372 { 1373 if (rounding >= 0.5f) 1374 { 1375 flags = FixRectCornerFlags(flags); 1376 rounding = ImMin(rounding, ImFabs(b.x - a.x) * (((flags & ImDrawFlags_RoundCornersTop) == ImDrawFlags_RoundCornersTop) || ((flags & ImDrawFlags_RoundCornersBottom) == ImDrawFlags_RoundCornersBottom) ? 0.5f : 1.0f) - 1.0f); 1377 rounding = ImMin(rounding, ImFabs(b.y - a.y) * (((flags & ImDrawFlags_RoundCornersLeft) == ImDrawFlags_RoundCornersLeft) || ((flags & ImDrawFlags_RoundCornersRight) == ImDrawFlags_RoundCornersRight) ? 0.5f : 1.0f) - 1.0f); 1378 } 1379 if (rounding < 0.5f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone) 1380 { 1381 PathLineTo(a); 1382 PathLineTo(ImVec2(b.x, a.y)); 1383 PathLineTo(b); 1384 PathLineTo(ImVec2(a.x, b.y)); 1385 } 1386 else 1387 { 1388 const float rounding_tl = (flags & ImDrawFlags_RoundCornersTopLeft) ? rounding : 0.0f; 1389 const float rounding_tr = (flags & ImDrawFlags_RoundCornersTopRight) ? rounding : 0.0f; 1390 const float rounding_br = (flags & ImDrawFlags_RoundCornersBottomRight) ? rounding : 0.0f; 1391 const float rounding_bl = (flags & ImDrawFlags_RoundCornersBottomLeft) ? rounding : 0.0f; 1392 PathArcToFast(ImVec2(a.x + rounding_tl, a.y + rounding_tl), rounding_tl, 6, 9); 1393 PathArcToFast(ImVec2(b.x - rounding_tr, a.y + rounding_tr), rounding_tr, 9, 12); 1394 PathArcToFast(ImVec2(b.x - rounding_br, b.y - rounding_br), rounding_br, 0, 3); 1395 PathArcToFast(ImVec2(a.x + rounding_bl, b.y - rounding_bl), rounding_bl, 3, 6); 1396 } 1397 } 1398 1399 void ImDrawList::AddLine(const ImVec2& p1, const ImVec2& p2, ImU32 col, float thickness) 1400 { 1401 if ((col & IM_COL32_A_MASK) == 0) 1402 return; 1403 PathLineTo(p1 + ImVec2(0.5f, 0.5f)); 1404 PathLineTo(p2 + ImVec2(0.5f, 0.5f)); 1405 PathStroke(col, 0, thickness); 1406 } 1407 1408 // p_min = upper-left, p_max = lower-right 1409 // Note we don't render 1 pixels sized rectangles properly. 1410 void ImDrawList::AddRect(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding, ImDrawFlags flags, float thickness) 1411 { 1412 if ((col & IM_COL32_A_MASK) == 0) 1413 return; 1414 if (Flags & ImDrawListFlags_AntiAliasedLines) 1415 PathRect(p_min + ImVec2(0.50f, 0.50f), p_max - ImVec2(0.50f, 0.50f), rounding, flags); 1416 else 1417 PathRect(p_min + ImVec2(0.50f, 0.50f), p_max - ImVec2(0.49f, 0.49f), rounding, flags); // Better looking lower-right corner and rounded non-AA shapes. 1418 PathStroke(col, ImDrawFlags_Closed, thickness); 1419 } 1420 1421 void ImDrawList::AddRectFilled(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding, ImDrawFlags flags) 1422 { 1423 if ((col & IM_COL32_A_MASK) == 0) 1424 return; 1425 if (rounding < 0.5f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone) 1426 { 1427 PrimReserve(6, 4); 1428 PrimRect(p_min, p_max, col); 1429 } 1430 else 1431 { 1432 PathRect(p_min, p_max, rounding, flags); 1433 PathFillConvex(col); 1434 } 1435 } 1436 1437 // p_min = upper-left, p_max = lower-right 1438 void ImDrawList::AddRectFilledMultiColor(const ImVec2& p_min, const ImVec2& p_max, ImU32 col_upr_left, ImU32 col_upr_right, ImU32 col_bot_right, ImU32 col_bot_left) 1439 { 1440 if (((col_upr_left | col_upr_right | col_bot_right | col_bot_left) & IM_COL32_A_MASK) == 0) 1441 return; 1442 1443 const ImVec2 uv = _Data->TexUvWhitePixel; 1444 PrimReserve(6, 4); 1445 PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 1)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 2)); 1446 PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 2)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 3)); 1447 PrimWriteVtx(p_min, uv, col_upr_left); 1448 PrimWriteVtx(ImVec2(p_max.x, p_min.y), uv, col_upr_right); 1449 PrimWriteVtx(p_max, uv, col_bot_right); 1450 PrimWriteVtx(ImVec2(p_min.x, p_max.y), uv, col_bot_left); 1451 } 1452 1453 void ImDrawList::AddQuad(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness) 1454 { 1455 if ((col & IM_COL32_A_MASK) == 0) 1456 return; 1457 1458 PathLineTo(p1); 1459 PathLineTo(p2); 1460 PathLineTo(p3); 1461 PathLineTo(p4); 1462 PathStroke(col, ImDrawFlags_Closed, thickness); 1463 } 1464 1465 void ImDrawList::AddQuadFilled(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col) 1466 { 1467 if ((col & IM_COL32_A_MASK) == 0) 1468 return; 1469 1470 PathLineTo(p1); 1471 PathLineTo(p2); 1472 PathLineTo(p3); 1473 PathLineTo(p4); 1474 PathFillConvex(col); 1475 } 1476 1477 void ImDrawList::AddTriangle(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col, float thickness) 1478 { 1479 if ((col & IM_COL32_A_MASK) == 0) 1480 return; 1481 1482 PathLineTo(p1); 1483 PathLineTo(p2); 1484 PathLineTo(p3); 1485 PathStroke(col, ImDrawFlags_Closed, thickness); 1486 } 1487 1488 void ImDrawList::AddTriangleFilled(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col) 1489 { 1490 if ((col & IM_COL32_A_MASK) == 0) 1491 return; 1492 1493 PathLineTo(p1); 1494 PathLineTo(p2); 1495 PathLineTo(p3); 1496 PathFillConvex(col); 1497 } 1498 1499 void ImDrawList::AddCircle(const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness) 1500 { 1501 if ((col & IM_COL32_A_MASK) == 0 || radius < 0.5f) 1502 return; 1503 1504 if (num_segments <= 0) 1505 { 1506 // Use arc with automatic segment count 1507 _PathArcToFastEx(center, radius - 0.5f, 0, IM_DRAWLIST_ARCFAST_SAMPLE_MAX, 0); 1508 _Path.Size--; 1509 } 1510 else 1511 { 1512 // Explicit segment count (still clamp to avoid drawing insanely tessellated shapes) 1513 num_segments = ImClamp(num_segments, 3, IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX); 1514 1515 // Because we are filling a closed shape we remove 1 from the count of segments/points 1516 const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments; 1517 PathArcTo(center, radius - 0.5f, 0.0f, a_max, num_segments - 1); 1518 } 1519 1520 PathStroke(col, ImDrawFlags_Closed, thickness); 1521 } 1522 1523 void ImDrawList::AddCircleFilled(const ImVec2& center, float radius, ImU32 col, int num_segments) 1524 { 1525 if ((col & IM_COL32_A_MASK) == 0 || radius < 0.5f) 1526 return; 1527 1528 if (num_segments <= 0) 1529 { 1530 // Use arc with automatic segment count 1531 _PathArcToFastEx(center, radius, 0, IM_DRAWLIST_ARCFAST_SAMPLE_MAX, 0); 1532 _Path.Size--; 1533 } 1534 else 1535 { 1536 // Explicit segment count (still clamp to avoid drawing insanely tessellated shapes) 1537 num_segments = ImClamp(num_segments, 3, IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX); 1538 1539 // Because we are filling a closed shape we remove 1 from the count of segments/points 1540 const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments; 1541 PathArcTo(center, radius, 0.0f, a_max, num_segments - 1); 1542 } 1543 1544 PathFillConvex(col); 1545 } 1546 1547 // Guaranteed to honor 'num_segments' 1548 void ImDrawList::AddNgon(const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness) 1549 { 1550 if ((col & IM_COL32_A_MASK) == 0 || num_segments <= 2) 1551 return; 1552 1553 // Because we are filling a closed shape we remove 1 from the count of segments/points 1554 const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments; 1555 PathArcTo(center, radius - 0.5f, 0.0f, a_max, num_segments - 1); 1556 PathStroke(col, ImDrawFlags_Closed, thickness); 1557 } 1558 1559 // Guaranteed to honor 'num_segments' 1560 void ImDrawList::AddNgonFilled(const ImVec2& center, float radius, ImU32 col, int num_segments) 1561 { 1562 if ((col & IM_COL32_A_MASK) == 0 || num_segments <= 2) 1563 return; 1564 1565 // Because we are filling a closed shape we remove 1 from the count of segments/points 1566 const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments; 1567 PathArcTo(center, radius, 0.0f, a_max, num_segments - 1); 1568 PathFillConvex(col); 1569 } 1570 1571 // Ellipse 1572 void ImDrawList::AddEllipse(const ImVec2& center, const ImVec2& radius, ImU32 col, float rot, int num_segments, float thickness) 1573 { 1574 if ((col & IM_COL32_A_MASK) == 0) 1575 return; 1576 1577 if (num_segments <= 0) 1578 num_segments = _CalcCircleAutoSegmentCount(ImMax(radius.x, radius.y)); // A bit pessimistic, maybe there's a better computation to do here. 1579 1580 // Because we are filling a closed shape we remove 1 from the count of segments/points 1581 const float a_max = IM_PI * 2.0f * ((float)num_segments - 1.0f) / (float)num_segments; 1582 PathEllipticalArcTo(center, radius, rot, 0.0f, a_max, num_segments - 1); 1583 PathStroke(col, true, thickness); 1584 } 1585 1586 void ImDrawList::AddEllipseFilled(const ImVec2& center, const ImVec2& radius, ImU32 col, float rot, int num_segments) 1587 { 1588 if ((col & IM_COL32_A_MASK) == 0) 1589 return; 1590 1591 if (num_segments <= 0) 1592 num_segments = _CalcCircleAutoSegmentCount(ImMax(radius.x, radius.y)); // A bit pessimistic, maybe there's a better computation to do here. 1593 1594 // Because we are filling a closed shape we remove 1 from the count of segments/points 1595 const float a_max = IM_PI * 2.0f * ((float)num_segments - 1.0f) / (float)num_segments; 1596 PathEllipticalArcTo(center, radius, rot, 0.0f, a_max, num_segments - 1); 1597 PathFillConvex(col); 1598 } 1599 1600 // Cubic Bezier takes 4 controls points 1601 void ImDrawList::AddBezierCubic(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness, int num_segments) 1602 { 1603 if ((col & IM_COL32_A_MASK) == 0) 1604 return; 1605 1606 PathLineTo(p1); 1607 PathBezierCubicCurveTo(p2, p3, p4, num_segments); 1608 PathStroke(col, 0, thickness); 1609 } 1610 1611 // Quadratic Bezier takes 3 controls points 1612 void ImDrawList::AddBezierQuadratic(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col, float thickness, int num_segments) 1613 { 1614 if ((col & IM_COL32_A_MASK) == 0) 1615 return; 1616 1617 PathLineTo(p1); 1618 PathBezierQuadraticCurveTo(p2, p3, num_segments); 1619 PathStroke(col, 0, thickness); 1620 } 1621 1622 void ImDrawList::AddText(const ImFont* font, float font_size, const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end, float wrap_width, const ImVec4* cpu_fine_clip_rect) 1623 { 1624 if ((col & IM_COL32_A_MASK) == 0) 1625 return; 1626 1627 // Accept null ranges 1628 if (text_begin == text_end || text_begin[0] == 0) 1629 return; 1630 if (text_end == NULL) 1631 text_end = text_begin + strlen(text_begin); 1632 1633 // Pull default font/size from the shared ImDrawListSharedData instance 1634 if (font == NULL) 1635 font = _Data->Font; 1636 if (font_size == 0.0f) 1637 font_size = _Data->FontSize; 1638 1639 IM_ASSERT(font->ContainerAtlas->TexID == _CmdHeader.TextureId); // Use high-level ImGui::PushFont() or low-level ImDrawList::PushTextureId() to change font. 1640 1641 ImVec4 clip_rect = _CmdHeader.ClipRect; 1642 if (cpu_fine_clip_rect) 1643 { 1644 clip_rect.x = ImMax(clip_rect.x, cpu_fine_clip_rect->x); 1645 clip_rect.y = ImMax(clip_rect.y, cpu_fine_clip_rect->y); 1646 clip_rect.z = ImMin(clip_rect.z, cpu_fine_clip_rect->z); 1647 clip_rect.w = ImMin(clip_rect.w, cpu_fine_clip_rect->w); 1648 } 1649 font->RenderText(this, font_size, pos, col, clip_rect, text_begin, text_end, wrap_width, cpu_fine_clip_rect != NULL); 1650 } 1651 1652 void ImDrawList::AddText(const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end) 1653 { 1654 AddText(NULL, 0.0f, pos, col, text_begin, text_end); 1655 } 1656 1657 void ImDrawList::AddImage(ImTextureID user_texture_id, const ImVec2& p_min, const ImVec2& p_max, const ImVec2& uv_min, const ImVec2& uv_max, ImU32 col) 1658 { 1659 if ((col & IM_COL32_A_MASK) == 0) 1660 return; 1661 1662 const bool push_texture_id = user_texture_id != _CmdHeader.TextureId; 1663 if (push_texture_id) 1664 PushTextureID(user_texture_id); 1665 1666 PrimReserve(6, 4); 1667 PrimRectUV(p_min, p_max, uv_min, uv_max, col); 1668 1669 if (push_texture_id) 1670 PopTextureID(); 1671 } 1672 1673 void ImDrawList::AddImageQuad(ImTextureID user_texture_id, const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, const ImVec2& uv1, const ImVec2& uv2, const ImVec2& uv3, const ImVec2& uv4, ImU32 col) 1674 { 1675 if ((col & IM_COL32_A_MASK) == 0) 1676 return; 1677 1678 const bool push_texture_id = user_texture_id != _CmdHeader.TextureId; 1679 if (push_texture_id) 1680 PushTextureID(user_texture_id); 1681 1682 PrimReserve(6, 4); 1683 PrimQuadUV(p1, p2, p3, p4, uv1, uv2, uv3, uv4, col); 1684 1685 if (push_texture_id) 1686 PopTextureID(); 1687 } 1688 1689 void ImDrawList::AddImageRounded(ImTextureID user_texture_id, const ImVec2& p_min, const ImVec2& p_max, const ImVec2& uv_min, const ImVec2& uv_max, ImU32 col, float rounding, ImDrawFlags flags) 1690 { 1691 if ((col & IM_COL32_A_MASK) == 0) 1692 return; 1693 1694 flags = FixRectCornerFlags(flags); 1695 if (rounding < 0.5f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone) 1696 { 1697 AddImage(user_texture_id, p_min, p_max, uv_min, uv_max, col); 1698 return; 1699 } 1700 1701 const bool push_texture_id = user_texture_id != _CmdHeader.TextureId; 1702 if (push_texture_id) 1703 PushTextureID(user_texture_id); 1704 1705 int vert_start_idx = VtxBuffer.Size; 1706 PathRect(p_min, p_max, rounding, flags); 1707 PathFillConvex(col); 1708 int vert_end_idx = VtxBuffer.Size; 1709 ImGui::ShadeVertsLinearUV(this, vert_start_idx, vert_end_idx, p_min, p_max, uv_min, uv_max, true); 1710 1711 if (push_texture_id) 1712 PopTextureID(); 1713 } 1714 1715 //----------------------------------------------------------------------------- 1716 // [SECTION] ImTriangulator, ImDrawList concave polygon fill 1717 //----------------------------------------------------------------------------- 1718 // Triangulate concave polygons. Based on "Triangulation by Ear Clipping" paper, O(N^2) complexity. 1719 // Reference: https://www.geometrictools.com/Documentation/TriangulationByEarClipping.pdf 1720 // Provided as a convenience for user but not used by main library. 1721 //----------------------------------------------------------------------------- 1722 // - ImTriangulator [Internal] 1723 // - AddConcavePolyFilled() 1724 //----------------------------------------------------------------------------- 1725 1726 enum ImTriangulatorNodeType 1727 { 1728 ImTriangulatorNodeType_Convex, 1729 ImTriangulatorNodeType_Ear, 1730 ImTriangulatorNodeType_Reflex 1731 }; 1732 1733 struct ImTriangulatorNode 1734 { 1735 ImTriangulatorNodeType Type; 1736 int Index; 1737 ImVec2 Pos; 1738 ImTriangulatorNode* Next; 1739 ImTriangulatorNode* Prev; 1740 1741 void Unlink() { Next->Prev = Prev; Prev->Next = Next; } 1742 }; 1743 1744 struct ImTriangulatorNodeSpan 1745 { 1746 ImTriangulatorNode** Data = NULL; 1747 int Size = 0; 1748 1749 void push_back(ImTriangulatorNode* node) { Data[Size++] = node; } 1750 void find_erase_unsorted(int idx) { for (int i = Size - 1; i >= 0; i--) if (Data[i]->Index == idx) { Data[i] = Data[Size - 1]; Size--; return; } } 1751 }; 1752 1753 struct ImTriangulator 1754 { 1755 static int EstimateTriangleCount(int points_count) { return (points_count < 3) ? 0 : points_count - 2; } 1756 static int EstimateScratchBufferSize(int points_count) { return sizeof(ImTriangulatorNode) * points_count + sizeof(ImTriangulatorNode*) * points_count * 2; } 1757 1758 void Init(const ImVec2* points, int points_count, void* scratch_buffer); 1759 void GetNextTriangle(unsigned int out_triangle[3]); // Return relative indexes for next triangle 1760 1761 // Internal functions 1762 void BuildNodes(const ImVec2* points, int points_count); 1763 void BuildReflexes(); 1764 void BuildEars(); 1765 void FlipNodeList(); 1766 bool IsEar(int i0, int i1, int i2, const ImVec2& v0, const ImVec2& v1, const ImVec2& v2) const; 1767 void ReclassifyNode(ImTriangulatorNode* node); 1768 1769 // Internal members 1770 int _TrianglesLeft = 0; 1771 ImTriangulatorNode* _Nodes = NULL; 1772 ImTriangulatorNodeSpan _Ears; 1773 ImTriangulatorNodeSpan _Reflexes; 1774 }; 1775 1776 // Distribute storage for nodes, ears and reflexes. 1777 // FIXME-OPT: if everything is convex, we could report it to caller and let it switch to an convex renderer 1778 // (this would require first building reflexes to bail to convex if empty, without even building nodes) 1779 void ImTriangulator::Init(const ImVec2* points, int points_count, void* scratch_buffer) 1780 { 1781 IM_ASSERT(scratch_buffer != NULL && points_count >= 3); 1782 _TrianglesLeft = EstimateTriangleCount(points_count); 1783 _Nodes = (ImTriangulatorNode*)scratch_buffer; // points_count x Node 1784 _Ears.Data = (ImTriangulatorNode**)(_Nodes + points_count); // points_count x Node* 1785 _Reflexes.Data = (ImTriangulatorNode**)(_Nodes + points_count) + points_count; // points_count x Node* 1786 BuildNodes(points, points_count); 1787 BuildReflexes(); 1788 BuildEars(); 1789 } 1790 1791 void ImTriangulator::BuildNodes(const ImVec2* points, int points_count) 1792 { 1793 for (int i = 0; i < points_count; i++) 1794 { 1795 _Nodes[i].Type = ImTriangulatorNodeType_Convex; 1796 _Nodes[i].Index = i; 1797 _Nodes[i].Pos = points[i]; 1798 _Nodes[i].Next = _Nodes + i + 1; 1799 _Nodes[i].Prev = _Nodes + i - 1; 1800 } 1801 _Nodes[0].Prev = _Nodes + points_count - 1; 1802 _Nodes[points_count - 1].Next = _Nodes; 1803 } 1804 1805 void ImTriangulator::BuildReflexes() 1806 { 1807 ImTriangulatorNode* n1 = _Nodes; 1808 for (int i = _TrianglesLeft; i >= 0; i--, n1 = n1->Next) 1809 { 1810 if (ImTriangleIsClockwise(n1->Prev->Pos, n1->Pos, n1->Next->Pos)) 1811 continue; 1812 n1->Type = ImTriangulatorNodeType_Reflex; 1813 _Reflexes.push_back(n1); 1814 } 1815 } 1816 1817 void ImTriangulator::BuildEars() 1818 { 1819 ImTriangulatorNode* n1 = _Nodes; 1820 for (int i = _TrianglesLeft; i >= 0; i--, n1 = n1->Next) 1821 { 1822 if (n1->Type != ImTriangulatorNodeType_Convex) 1823 continue; 1824 if (!IsEar(n1->Prev->Index, n1->Index, n1->Next->Index, n1->Prev->Pos, n1->Pos, n1->Next->Pos)) 1825 continue; 1826 n1->Type = ImTriangulatorNodeType_Ear; 1827 _Ears.push_back(n1); 1828 } 1829 } 1830 1831 void ImTriangulator::GetNextTriangle(unsigned int out_triangle[3]) 1832 { 1833 if (_Ears.Size == 0) 1834 { 1835 FlipNodeList(); 1836 1837 ImTriangulatorNode* node = _Nodes; 1838 for (int i = _TrianglesLeft; i >= 0; i--, node = node->Next) 1839 node->Type = ImTriangulatorNodeType_Convex; 1840 _Reflexes.Size = 0; 1841 BuildReflexes(); 1842 BuildEars(); 1843 1844 // If we still don't have ears, it means geometry is degenerated. 1845 if (_Ears.Size == 0) 1846 { 1847 // Return first triangle available, mimicking the behavior of convex fill. 1848 IM_ASSERT(_TrianglesLeft > 0); // Geometry is degenerated 1849 _Ears.Data[0] = _Nodes; 1850 _Ears.Size = 1; 1851 } 1852 } 1853 1854 ImTriangulatorNode* ear = _Ears.Data[--_Ears.Size]; 1855 out_triangle[0] = ear->Prev->Index; 1856 out_triangle[1] = ear->Index; 1857 out_triangle[2] = ear->Next->Index; 1858 1859 ear->Unlink(); 1860 if (ear == _Nodes) 1861 _Nodes = ear->Next; 1862 1863 ReclassifyNode(ear->Prev); 1864 ReclassifyNode(ear->Next); 1865 _TrianglesLeft--; 1866 } 1867 1868 void ImTriangulator::FlipNodeList() 1869 { 1870 ImTriangulatorNode* prev = _Nodes; 1871 ImTriangulatorNode* temp = _Nodes; 1872 ImTriangulatorNode* current = _Nodes->Next; 1873 prev->Next = prev; 1874 prev->Prev = prev; 1875 while (current != _Nodes) 1876 { 1877 temp = current->Next; 1878 1879 current->Next = prev; 1880 prev->Prev = current; 1881 _Nodes->Next = current; 1882 current->Prev = _Nodes; 1883 1884 prev = current; 1885 current = temp; 1886 } 1887 _Nodes = prev; 1888 } 1889 1890 // A triangle is an ear is no other vertex is inside it. We can test reflexes vertices only (see reference algorithm) 1891 bool ImTriangulator::IsEar(int i0, int i1, int i2, const ImVec2& v0, const ImVec2& v1, const ImVec2& v2) const 1892 { 1893 ImTriangulatorNode** p_end = _Reflexes.Data + _Reflexes.Size; 1894 for (ImTriangulatorNode** p = _Reflexes.Data; p < p_end; p++) 1895 { 1896 ImTriangulatorNode* reflex = *p; 1897 if (reflex->Index != i0 && reflex->Index != i1 && reflex->Index != i2) 1898 if (ImTriangleContainsPoint(v0, v1, v2, reflex->Pos)) 1899 return false; 1900 } 1901 return true; 1902 } 1903 1904 void ImTriangulator::ReclassifyNode(ImTriangulatorNode* n1) 1905 { 1906 // Classify node 1907 ImTriangulatorNodeType type; 1908 const ImTriangulatorNode* n0 = n1->Prev; 1909 const ImTriangulatorNode* n2 = n1->Next; 1910 if (!ImTriangleIsClockwise(n0->Pos, n1->Pos, n2->Pos)) 1911 type = ImTriangulatorNodeType_Reflex; 1912 else if (IsEar(n0->Index, n1->Index, n2->Index, n0->Pos, n1->Pos, n2->Pos)) 1913 type = ImTriangulatorNodeType_Ear; 1914 else 1915 type = ImTriangulatorNodeType_Convex; 1916 1917 // Update lists when a type changes 1918 if (type == n1->Type) 1919 return; 1920 if (n1->Type == ImTriangulatorNodeType_Reflex) 1921 _Reflexes.find_erase_unsorted(n1->Index); 1922 else if (n1->Type == ImTriangulatorNodeType_Ear) 1923 _Ears.find_erase_unsorted(n1->Index); 1924 if (type == ImTriangulatorNodeType_Reflex) 1925 _Reflexes.push_back(n1); 1926 else if (type == ImTriangulatorNodeType_Ear) 1927 _Ears.push_back(n1); 1928 n1->Type = type; 1929 } 1930 1931 // Use ear-clipping algorithm to triangulate a simple polygon (no self-interaction, no holes). 1932 // (Reminder: we don't perform any coarse clipping/culling in ImDrawList layer! 1933 // It is up to caller to ensure not making costly calls that will be outside of visible area. 1934 // As concave fill is noticeably more expensive than other primitives, be mindful of this... 1935 // Caller can build AABB of points, and avoid filling if 'draw_list->_CmdHeader.ClipRect.Overlays(points_bb) == false') 1936 void ImDrawList::AddConcavePolyFilled(const ImVec2* points, const int points_count, ImU32 col) 1937 { 1938 if (points_count < 3 || (col & IM_COL32_A_MASK) == 0) 1939 return; 1940 1941 const ImVec2 uv = _Data->TexUvWhitePixel; 1942 ImTriangulator triangulator; 1943 unsigned int triangle[3]; 1944 if (Flags & ImDrawListFlags_AntiAliasedFill) 1945 { 1946 // Anti-aliased Fill 1947 const float AA_SIZE = _FringeScale; 1948 const ImU32 col_trans = col & ~IM_COL32_A_MASK; 1949 const int idx_count = (points_count - 2) * 3 + points_count * 6; 1950 const int vtx_count = (points_count * 2); 1951 PrimReserve(idx_count, vtx_count); 1952 1953 // Add indexes for fill 1954 unsigned int vtx_inner_idx = _VtxCurrentIdx; 1955 unsigned int vtx_outer_idx = _VtxCurrentIdx + 1; 1956 1957 _Data->TempBuffer.reserve_discard((ImTriangulator::EstimateScratchBufferSize(points_count) + sizeof(ImVec2)) / sizeof(ImVec2)); 1958 triangulator.Init(points, points_count, _Data->TempBuffer.Data); 1959 while (triangulator._TrianglesLeft > 0) 1960 { 1961 triangulator.GetNextTriangle(triangle); 1962 _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx + (triangle[0] << 1)); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + (triangle[1] << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_inner_idx + (triangle[2] << 1)); 1963 _IdxWritePtr += 3; 1964 } 1965 1966 // Compute normals 1967 _Data->TempBuffer.reserve_discard(points_count); 1968 ImVec2* temp_normals = _Data->TempBuffer.Data; 1969 for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++) 1970 { 1971 const ImVec2& p0 = points[i0]; 1972 const ImVec2& p1 = points[i1]; 1973 float dx = p1.x - p0.x; 1974 float dy = p1.y - p0.y; 1975 IM_NORMALIZE2F_OVER_ZERO(dx, dy); 1976 temp_normals[i0].x = dy; 1977 temp_normals[i0].y = -dx; 1978 } 1979 1980 for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++) 1981 { 1982 // Average normals 1983 const ImVec2& n0 = temp_normals[i0]; 1984 const ImVec2& n1 = temp_normals[i1]; 1985 float dm_x = (n0.x + n1.x) * 0.5f; 1986 float dm_y = (n0.y + n1.y) * 0.5f; 1987 IM_FIXNORMAL2F(dm_x, dm_y); 1988 dm_x *= AA_SIZE * 0.5f; 1989 dm_y *= AA_SIZE * 0.5f; 1990 1991 // Add vertices 1992 _VtxWritePtr[0].pos.x = (points[i1].x - dm_x); _VtxWritePtr[0].pos.y = (points[i1].y - dm_y); _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; // Inner 1993 _VtxWritePtr[1].pos.x = (points[i1].x + dm_x); _VtxWritePtr[1].pos.y = (points[i1].y + dm_y); _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col_trans; // Outer 1994 _VtxWritePtr += 2; 1995 1996 // Add indexes for fringes 1997 _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1)); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + (i0 << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1)); 1998 _IdxWritePtr[3] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1)); _IdxWritePtr[4] = (ImDrawIdx)(vtx_outer_idx + (i1 << 1)); _IdxWritePtr[5] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1)); 1999 _IdxWritePtr += 6; 2000 } 2001 _VtxCurrentIdx += (ImDrawIdx)vtx_count; 2002 } 2003 else 2004 { 2005 // Non Anti-aliased Fill 2006 const int idx_count = (points_count - 2) * 3; 2007 const int vtx_count = points_count; 2008 PrimReserve(idx_count, vtx_count); 2009 for (int i = 0; i < vtx_count; i++) 2010 { 2011 _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; 2012 _VtxWritePtr++; 2013 } 2014 _Data->TempBuffer.reserve_discard((ImTriangulator::EstimateScratchBufferSize(points_count) + sizeof(ImVec2)) / sizeof(ImVec2)); 2015 triangulator.Init(points, points_count, _Data->TempBuffer.Data); 2016 while (triangulator._TrianglesLeft > 0) 2017 { 2018 triangulator.GetNextTriangle(triangle); 2019 _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx + triangle[0]); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx + triangle[1]); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx + triangle[2]); 2020 _IdxWritePtr += 3; 2021 } 2022 _VtxCurrentIdx += (ImDrawIdx)vtx_count; 2023 } 2024 } 2025 2026 //----------------------------------------------------------------------------- 2027 // [SECTION] ImDrawListSplitter 2028 //----------------------------------------------------------------------------- 2029 // FIXME: This may be a little confusing, trying to be a little too low-level/optimal instead of just doing vector swap.. 2030 //----------------------------------------------------------------------------- 2031 2032 void ImDrawListSplitter::ClearFreeMemory() 2033 { 2034 for (int i = 0; i < _Channels.Size; i++) 2035 { 2036 if (i == _Current) 2037 memset(&_Channels[i], 0, sizeof(_Channels[i])); // Current channel is a copy of CmdBuffer/IdxBuffer, don't destruct again 2038 _Channels[i]._CmdBuffer.clear(); 2039 _Channels[i]._IdxBuffer.clear(); 2040 } 2041 _Current = 0; 2042 _Count = 1; 2043 _Channels.clear(); 2044 } 2045 2046 void ImDrawListSplitter::Split(ImDrawList* draw_list, int channels_count) 2047 { 2048 IM_UNUSED(draw_list); 2049 IM_ASSERT(_Current == 0 && _Count <= 1 && "Nested channel splitting is not supported. Please use separate instances of ImDrawListSplitter."); 2050 int old_channels_count = _Channels.Size; 2051 if (old_channels_count < channels_count) 2052 { 2053 _Channels.reserve(channels_count); // Avoid over reserving since this is likely to stay stable 2054 _Channels.resize(channels_count); 2055 } 2056 _Count = channels_count; 2057 2058 // Channels[] (24/32 bytes each) hold storage that we'll swap with draw_list->_CmdBuffer/_IdxBuffer 2059 // The content of Channels[0] at this point doesn't matter. We clear it to make state tidy in a debugger but we don't strictly need to. 2060 // When we switch to the next channel, we'll copy draw_list->_CmdBuffer/_IdxBuffer into Channels[0] and then Channels[1] into draw_list->CmdBuffer/_IdxBuffer 2061 memset(&_Channels[0], 0, sizeof(ImDrawChannel)); 2062 for (int i = 1; i < channels_count; i++) 2063 { 2064 if (i >= old_channels_count) 2065 { 2066 IM_PLACEMENT_NEW(&_Channels[i]) ImDrawChannel(); 2067 } 2068 else 2069 { 2070 _Channels[i]._CmdBuffer.resize(0); 2071 _Channels[i]._IdxBuffer.resize(0); 2072 } 2073 } 2074 } 2075 2076 void ImDrawListSplitter::Merge(ImDrawList* draw_list) 2077 { 2078 // Note that we never use or rely on _Channels.Size because it is merely a buffer that we never shrink back to 0 to keep all sub-buffers ready for use. 2079 if (_Count <= 1) 2080 return; 2081 2082 SetCurrentChannel(draw_list, 0); 2083 draw_list->_PopUnusedDrawCmd(); 2084 2085 // Calculate our final buffer sizes. Also fix the incorrect IdxOffset values in each command. 2086 int new_cmd_buffer_count = 0; 2087 int new_idx_buffer_count = 0; 2088 ImDrawCmd* last_cmd = (_Count > 0 && draw_list->CmdBuffer.Size > 0) ? &draw_list->CmdBuffer.back() : NULL; 2089 int idx_offset = last_cmd ? last_cmd->IdxOffset + last_cmd->ElemCount : 0; 2090 for (int i = 1; i < _Count; i++) 2091 { 2092 ImDrawChannel& ch = _Channels[i]; 2093 if (ch._CmdBuffer.Size > 0 && ch._CmdBuffer.back().ElemCount == 0 && ch._CmdBuffer.back().UserCallback == NULL) // Equivalent of PopUnusedDrawCmd() 2094 ch._CmdBuffer.pop_back(); 2095 2096 if (ch._CmdBuffer.Size > 0 && last_cmd != NULL) 2097 { 2098 // Do not include ImDrawCmd_AreSequentialIdxOffset() in the compare as we rebuild IdxOffset values ourselves. 2099 // Manipulating IdxOffset (e.g. by reordering draw commands like done by RenderDimmedBackgroundBehindWindow()) is not supported within a splitter. 2100 ImDrawCmd* next_cmd = &ch._CmdBuffer[0]; 2101 if (ImDrawCmd_HeaderCompare(last_cmd, next_cmd) == 0 && last_cmd->UserCallback == NULL && next_cmd->UserCallback == NULL) 2102 { 2103 // Merge previous channel last draw command with current channel first draw command if matching. 2104 last_cmd->ElemCount += next_cmd->ElemCount; 2105 idx_offset += next_cmd->ElemCount; 2106 ch._CmdBuffer.erase(ch._CmdBuffer.Data); // FIXME-OPT: Improve for multiple merges. 2107 } 2108 } 2109 if (ch._CmdBuffer.Size > 0) 2110 last_cmd = &ch._CmdBuffer.back(); 2111 new_cmd_buffer_count += ch._CmdBuffer.Size; 2112 new_idx_buffer_count += ch._IdxBuffer.Size; 2113 for (int cmd_n = 0; cmd_n < ch._CmdBuffer.Size; cmd_n++) 2114 { 2115 ch._CmdBuffer.Data[cmd_n].IdxOffset = idx_offset; 2116 idx_offset += ch._CmdBuffer.Data[cmd_n].ElemCount; 2117 } 2118 } 2119 draw_list->CmdBuffer.resize(draw_list->CmdBuffer.Size + new_cmd_buffer_count); 2120 draw_list->IdxBuffer.resize(draw_list->IdxBuffer.Size + new_idx_buffer_count); 2121 2122 // Write commands and indices in order (they are fairly small structures, we don't copy vertices only indices) 2123 ImDrawCmd* cmd_write = draw_list->CmdBuffer.Data + draw_list->CmdBuffer.Size - new_cmd_buffer_count; 2124 ImDrawIdx* idx_write = draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size - new_idx_buffer_count; 2125 for (int i = 1; i < _Count; i++) 2126 { 2127 ImDrawChannel& ch = _Channels[i]; 2128 if (int sz = ch._CmdBuffer.Size) { memcpy(cmd_write, ch._CmdBuffer.Data, sz * sizeof(ImDrawCmd)); cmd_write += sz; } 2129 if (int sz = ch._IdxBuffer.Size) { memcpy(idx_write, ch._IdxBuffer.Data, sz * sizeof(ImDrawIdx)); idx_write += sz; } 2130 } 2131 draw_list->_IdxWritePtr = idx_write; 2132 2133 // Ensure there's always a non-callback draw command trailing the command-buffer 2134 if (draw_list->CmdBuffer.Size == 0 || draw_list->CmdBuffer.back().UserCallback != NULL) 2135 draw_list->AddDrawCmd(); 2136 2137 // If current command is used with different settings we need to add a new command 2138 ImDrawCmd* curr_cmd = &draw_list->CmdBuffer.Data[draw_list->CmdBuffer.Size - 1]; 2139 if (curr_cmd->ElemCount == 0) 2140 ImDrawCmd_HeaderCopy(curr_cmd, &draw_list->_CmdHeader); // Copy ClipRect, TextureId, VtxOffset 2141 else if (ImDrawCmd_HeaderCompare(curr_cmd, &draw_list->_CmdHeader) != 0) 2142 draw_list->AddDrawCmd(); 2143 2144 _Count = 1; 2145 } 2146 2147 void ImDrawListSplitter::SetCurrentChannel(ImDrawList* draw_list, int idx) 2148 { 2149 IM_ASSERT(idx >= 0 && idx < _Count); 2150 if (_Current == idx) 2151 return; 2152 2153 // Overwrite ImVector (12/16 bytes), four times. This is merely a silly optimization instead of doing .swap() 2154 memcpy(&_Channels.Data[_Current]._CmdBuffer, &draw_list->CmdBuffer, sizeof(draw_list->CmdBuffer)); 2155 memcpy(&_Channels.Data[_Current]._IdxBuffer, &draw_list->IdxBuffer, sizeof(draw_list->IdxBuffer)); 2156 _Current = idx; 2157 memcpy(&draw_list->CmdBuffer, &_Channels.Data[idx]._CmdBuffer, sizeof(draw_list->CmdBuffer)); 2158 memcpy(&draw_list->IdxBuffer, &_Channels.Data[idx]._IdxBuffer, sizeof(draw_list->IdxBuffer)); 2159 draw_list->_IdxWritePtr = draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size; 2160 2161 // If current command is used with different settings we need to add a new command 2162 ImDrawCmd* curr_cmd = (draw_list->CmdBuffer.Size == 0) ? NULL : &draw_list->CmdBuffer.Data[draw_list->CmdBuffer.Size - 1]; 2163 if (curr_cmd == NULL) 2164 draw_list->AddDrawCmd(); 2165 else if (curr_cmd->ElemCount == 0) 2166 ImDrawCmd_HeaderCopy(curr_cmd, &draw_list->_CmdHeader); // Copy ClipRect, TextureId, VtxOffset 2167 else if (ImDrawCmd_HeaderCompare(curr_cmd, &draw_list->_CmdHeader) != 0) 2168 draw_list->AddDrawCmd(); 2169 } 2170 2171 //----------------------------------------------------------------------------- 2172 // [SECTION] ImDrawData 2173 //----------------------------------------------------------------------------- 2174 2175 void ImDrawData::Clear() 2176 { 2177 Valid = false; 2178 CmdListsCount = TotalIdxCount = TotalVtxCount = 0; 2179 CmdLists.resize(0); // The ImDrawList are NOT owned by ImDrawData but e.g. by ImGuiContext, so we don't clear them. 2180 DisplayPos = DisplaySize = FramebufferScale = ImVec2(0.0f, 0.0f); 2181 OwnerViewport = NULL; 2182 } 2183 2184 // Important: 'out_list' is generally going to be draw_data->CmdLists, but may be another temporary list 2185 // as long at it is expected that the result will be later merged into draw_data->CmdLists[]. 2186 void ImGui::AddDrawListToDrawDataEx(ImDrawData* draw_data, ImVector<ImDrawList*>* out_list, ImDrawList* draw_list) 2187 { 2188 if (draw_list->CmdBuffer.Size == 0) 2189 return; 2190 if (draw_list->CmdBuffer.Size == 1 && draw_list->CmdBuffer[0].ElemCount == 0 && draw_list->CmdBuffer[0].UserCallback == NULL) 2191 return; 2192 2193 // Draw list sanity check. Detect mismatch between PrimReserve() calls and incrementing _VtxCurrentIdx, _VtxWritePtr etc. 2194 // May trigger for you if you are using PrimXXX functions incorrectly. 2195 IM_ASSERT(draw_list->VtxBuffer.Size == 0 || draw_list->_VtxWritePtr == draw_list->VtxBuffer.Data + draw_list->VtxBuffer.Size); 2196 IM_ASSERT(draw_list->IdxBuffer.Size == 0 || draw_list->_IdxWritePtr == draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size); 2197 if (!(draw_list->Flags & ImDrawListFlags_AllowVtxOffset)) 2198 IM_ASSERT((int)draw_list->_VtxCurrentIdx == draw_list->VtxBuffer.Size); 2199 2200 // Check that draw_list doesn't use more vertices than indexable (default ImDrawIdx = unsigned short = 2 bytes = 64K vertices per ImDrawList = per window) 2201 // If this assert triggers because you are drawing lots of stuff manually: 2202 // - First, make sure you are coarse clipping yourself and not trying to draw many things outside visible bounds. 2203 // Be mindful that the lower-level ImDrawList API doesn't filter vertices. Use the Metrics/Debugger window to inspect draw list contents. 2204 // - If you want large meshes with more than 64K vertices, you can either: 2205 // (A) Handle the ImDrawCmd::VtxOffset value in your renderer backend, and set 'io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset'. 2206 // Most example backends already support this from 1.71. Pre-1.71 backends won't. 2207 // Some graphics API such as GL ES 1/2 don't have a way to offset the starting vertex so it is not supported for them. 2208 // (B) Or handle 32-bit indices in your renderer backend, and uncomment '#define ImDrawIdx unsigned int' line in imconfig.h. 2209 // Most example backends already support this. For example, the OpenGL example code detect index size at compile-time: 2210 // glDrawElements(GL_TRIANGLES, (GLsizei)pcmd->ElemCount, sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, idx_buffer_offset); 2211 // Your own engine or render API may use different parameters or function calls to specify index sizes. 2212 // 2 and 4 bytes indices are generally supported by most graphics API. 2213 // - If for some reason neither of those solutions works for you, a workaround is to call BeginChild()/EndChild() before reaching 2214 // the 64K limit to split your draw commands in multiple draw lists. 2215 if (sizeof(ImDrawIdx) == 2) 2216 IM_ASSERT(draw_list->_VtxCurrentIdx < (1 << 16) && "Too many vertices in ImDrawList using 16-bit indices. Read comment above"); 2217 2218 // Add to output list + records state in ImDrawData 2219 out_list->push_back(draw_list); 2220 draw_data->CmdListsCount++; 2221 draw_data->TotalVtxCount += draw_list->VtxBuffer.Size; 2222 draw_data->TotalIdxCount += draw_list->IdxBuffer.Size; 2223 } 2224 2225 void ImDrawData::AddDrawList(ImDrawList* draw_list) 2226 { 2227 IM_ASSERT(CmdLists.Size == CmdListsCount); 2228 draw_list->_PopUnusedDrawCmd(); 2229 ImGui::AddDrawListToDrawDataEx(this, &CmdLists, draw_list); 2230 } 2231 2232 // For backward compatibility: convert all buffers from indexed to de-indexed, in case you cannot render indexed. Note: this is slow and most likely a waste of resources. Always prefer indexed rendering! 2233 void ImDrawData::DeIndexAllBuffers() 2234 { 2235 ImVector<ImDrawVert> new_vtx_buffer; 2236 TotalVtxCount = TotalIdxCount = 0; 2237 for (int i = 0; i < CmdListsCount; i++) 2238 { 2239 ImDrawList* cmd_list = CmdLists[i]; 2240 if (cmd_list->IdxBuffer.empty()) 2241 continue; 2242 new_vtx_buffer.resize(cmd_list->IdxBuffer.Size); 2243 for (int j = 0; j < cmd_list->IdxBuffer.Size; j++) 2244 new_vtx_buffer[j] = cmd_list->VtxBuffer[cmd_list->IdxBuffer[j]]; 2245 cmd_list->VtxBuffer.swap(new_vtx_buffer); 2246 cmd_list->IdxBuffer.resize(0); 2247 TotalVtxCount += cmd_list->VtxBuffer.Size; 2248 } 2249 } 2250 2251 // Helper to scale the ClipRect field of each ImDrawCmd. 2252 // Use if your final output buffer is at a different scale than draw_data->DisplaySize, 2253 // or if there is a difference between your window resolution and framebuffer resolution. 2254 void ImDrawData::ScaleClipRects(const ImVec2& fb_scale) 2255 { 2256 for (ImDrawList* draw_list : CmdLists) 2257 for (ImDrawCmd& cmd : draw_list->CmdBuffer) 2258 cmd.ClipRect = ImVec4(cmd.ClipRect.x * fb_scale.x, cmd.ClipRect.y * fb_scale.y, cmd.ClipRect.z * fb_scale.x, cmd.ClipRect.w * fb_scale.y); 2259 } 2260 2261 //----------------------------------------------------------------------------- 2262 // [SECTION] Helpers ShadeVertsXXX functions 2263 //----------------------------------------------------------------------------- 2264 2265 // Generic linear color gradient, write to RGB fields, leave A untouched. 2266 void ImGui::ShadeVertsLinearColorGradientKeepAlpha(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, ImVec2 gradient_p0, ImVec2 gradient_p1, ImU32 col0, ImU32 col1) 2267 { 2268 ImVec2 gradient_extent = gradient_p1 - gradient_p0; 2269 float gradient_inv_length2 = 1.0f / ImLengthSqr(gradient_extent); 2270 ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx; 2271 ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx; 2272 const int col0_r = (int)(col0 >> IM_COL32_R_SHIFT) & 0xFF; 2273 const int col0_g = (int)(col0 >> IM_COL32_G_SHIFT) & 0xFF; 2274 const int col0_b = (int)(col0 >> IM_COL32_B_SHIFT) & 0xFF; 2275 const int col_delta_r = ((int)(col1 >> IM_COL32_R_SHIFT) & 0xFF) - col0_r; 2276 const int col_delta_g = ((int)(col1 >> IM_COL32_G_SHIFT) & 0xFF) - col0_g; 2277 const int col_delta_b = ((int)(col1 >> IM_COL32_B_SHIFT) & 0xFF) - col0_b; 2278 for (ImDrawVert* vert = vert_start; vert < vert_end; vert++) 2279 { 2280 float d = ImDot(vert->pos - gradient_p0, gradient_extent); 2281 float t = ImClamp(d * gradient_inv_length2, 0.0f, 1.0f); 2282 int r = (int)(col0_r + col_delta_r * t); 2283 int g = (int)(col0_g + col_delta_g * t); 2284 int b = (int)(col0_b + col_delta_b * t); 2285 vert->col = (r << IM_COL32_R_SHIFT) | (g << IM_COL32_G_SHIFT) | (b << IM_COL32_B_SHIFT) | (vert->col & IM_COL32_A_MASK); 2286 } 2287 } 2288 2289 // Distribute UV over (a, b) rectangle 2290 void ImGui::ShadeVertsLinearUV(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, bool clamp) 2291 { 2292 const ImVec2 size = b - a; 2293 const ImVec2 uv_size = uv_b - uv_a; 2294 const ImVec2 scale = ImVec2( 2295 size.x != 0.0f ? (uv_size.x / size.x) : 0.0f, 2296 size.y != 0.0f ? (uv_size.y / size.y) : 0.0f); 2297 2298 ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx; 2299 ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx; 2300 if (clamp) 2301 { 2302 const ImVec2 min = ImMin(uv_a, uv_b); 2303 const ImVec2 max = ImMax(uv_a, uv_b); 2304 for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex) 2305 vertex->uv = ImClamp(uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale), min, max); 2306 } 2307 else 2308 { 2309 for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex) 2310 vertex->uv = uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale); 2311 } 2312 } 2313 2314 void ImGui::ShadeVertsTransformPos(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, const ImVec2& pivot_in, float cos_a, float sin_a, const ImVec2& pivot_out) 2315 { 2316 ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx; 2317 ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx; 2318 for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex) 2319 vertex->pos = ImRotate(vertex->pos- pivot_in, cos_a, sin_a) + pivot_out; 2320 } 2321 2322 //----------------------------------------------------------------------------- 2323 // [SECTION] ImFontConfig 2324 //----------------------------------------------------------------------------- 2325 2326 ImFontConfig::ImFontConfig() 2327 { 2328 memset(this, 0, sizeof(*this)); 2329 FontDataOwnedByAtlas = true; 2330 OversampleH = 2; 2331 OversampleV = 1; 2332 GlyphMaxAdvanceX = FLT_MAX; 2333 RasterizerMultiply = 1.0f; 2334 RasterizerDensity = 1.0f; 2335 EllipsisChar = (ImWchar)-1; 2336 } 2337 2338 //----------------------------------------------------------------------------- 2339 // [SECTION] ImFontAtlas 2340 //----------------------------------------------------------------------------- 2341 2342 // A work of art lies ahead! (. = white layer, X = black layer, others are blank) 2343 // The 2x2 white texels on the top left are the ones we'll use everywhere in Dear ImGui to render filled shapes. 2344 // (This is used when io.MouseDrawCursor = true) 2345 const int FONT_ATLAS_DEFAULT_TEX_DATA_W = 122; // Actual texture will be 2 times that + 1 spacing. 2346 const int FONT_ATLAS_DEFAULT_TEX_DATA_H = 27; 2347 static const char FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[FONT_ATLAS_DEFAULT_TEX_DATA_W * FONT_ATLAS_DEFAULT_TEX_DATA_H + 1] = 2348 { 2349 "..- -XXXXXXX- X - X -XXXXXXX - XXXXXXX- XX - XX XX " 2350 "..- -X.....X- X.X - X.X -X.....X - X.....X- X..X -X..X X..X" 2351 "--- -XXX.XXX- X...X - X...X -X....X - X....X- X..X -X...X X...X" 2352 "X - X.X - X.....X - X.....X -X...X - X...X- X..X - X...X X...X " 2353 "XX - X.X -X.......X- X.......X -X..X.X - X.X..X- X..X - X...X...X " 2354 "X.X - X.X -XXXX.XXXX- XXXX.XXXX -X.X X.X - X.X X.X- X..XXX - X.....X " 2355 "X..X - X.X - X.X - X.X -XX X.X - X.X XX- X..X..XXX - X...X " 2356 "X...X - X.X - X.X - XX X.X XX - X.X - X.X - X..X..X..XX - X.X " 2357 "X....X - X.X - X.X - X.X X.X X.X - X.X - X.X - X..X..X..X.X - X...X " 2358 "X.....X - X.X - X.X - X..X X.X X..X - X.X - X.X -XXX X..X..X..X..X- X.....X " 2359 "X......X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X XX-XX X.X -X..XX........X..X- X...X...X " 2360 "X.......X - X.X - X.X -X.....................X- X.X X.X-X.X X.X -X...X...........X- X...X X...X " 2361 "X........X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X..X-X..X.X - X..............X-X...X X...X" 2362 "X.........X -XXX.XXX- X.X - X..X X.X X..X - X...X-X...X - X.............X-X..X X..X" 2363 "X..........X-X.....X- X.X - X.X X.X X.X - X....X-X....X - X.............X- XX XX " 2364 "X......XXXXX-XXXXXXX- X.X - XX X.X XX - X.....X-X.....X - X............X--------------" 2365 "X...X..X --------- X.X - X.X - XXXXXXX-XXXXXXX - X...........X - " 2366 "X..X X..X - -XXXX.XXXX- XXXX.XXXX ------------------------------------- X..........X - " 2367 "X.X X..X - -X.......X- X.......X - XX XX - - X..........X - " 2368 "XX X..X - - X.....X - X.....X - X.X X.X - - X........X - " 2369 " X..X - - X...X - X...X - X..X X..X - - X........X - " 2370 " XX - - X.X - X.X - X...XXXXXXXXXXXXX...X - - XXXXXXXXXX - " 2371 "------------- - X - X -X.....................X- ------------------- " 2372 " ----------------------------------- X...XXXXXXXXXXXXX...X - " 2373 " - X..X X..X - " 2374 " - X.X X.X - " 2375 " - XX XX - " 2376 }; 2377 2378 static const ImVec2 FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[ImGuiMouseCursor_COUNT][3] = 2379 { 2380 // Pos ........ Size ......... Offset ...... 2381 { ImVec2( 0,3), ImVec2(12,19), ImVec2( 0, 0) }, // ImGuiMouseCursor_Arrow 2382 { ImVec2(13,0), ImVec2( 7,16), ImVec2( 1, 8) }, // ImGuiMouseCursor_TextInput 2383 { ImVec2(31,0), ImVec2(23,23), ImVec2(11,11) }, // ImGuiMouseCursor_ResizeAll 2384 { ImVec2(21,0), ImVec2( 9,23), ImVec2( 4,11) }, // ImGuiMouseCursor_ResizeNS 2385 { ImVec2(55,18),ImVec2(23, 9), ImVec2(11, 4) }, // ImGuiMouseCursor_ResizeEW 2386 { ImVec2(73,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNESW 2387 { ImVec2(55,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNWSE 2388 { ImVec2(91,0), ImVec2(17,22), ImVec2( 5, 0) }, // ImGuiMouseCursor_Hand 2389 { ImVec2(109,0),ImVec2(13,15), ImVec2( 6, 7) }, // ImGuiMouseCursor_NotAllowed 2390 }; 2391 2392 ImFontAtlas::ImFontAtlas() 2393 { 2394 memset(this, 0, sizeof(*this)); 2395 TexGlyphPadding = 1; 2396 PackIdMouseCursors = PackIdLines = -1; 2397 } 2398 2399 ImFontAtlas::~ImFontAtlas() 2400 { 2401 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!"); 2402 Clear(); 2403 } 2404 2405 void ImFontAtlas::ClearInputData() 2406 { 2407 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!"); 2408 for (ImFontConfig& font_cfg : ConfigData) 2409 if (font_cfg.FontData && font_cfg.FontDataOwnedByAtlas) 2410 { 2411 IM_FREE(font_cfg.FontData); 2412 font_cfg.FontData = NULL; 2413 } 2414 2415 // When clearing this we lose access to the font name and other information used to build the font. 2416 for (ImFont* font : Fonts) 2417 if (font->ConfigData >= ConfigData.Data && font->ConfigData < ConfigData.Data + ConfigData.Size) 2418 { 2419 font->ConfigData = NULL; 2420 font->ConfigDataCount = 0; 2421 } 2422 ConfigData.clear(); 2423 CustomRects.clear(); 2424 PackIdMouseCursors = PackIdLines = -1; 2425 // Important: we leave TexReady untouched 2426 } 2427 2428 void ImFontAtlas::ClearTexData() 2429 { 2430 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!"); 2431 if (TexPixelsAlpha8) 2432 IM_FREE(TexPixelsAlpha8); 2433 if (TexPixelsRGBA32) 2434 IM_FREE(TexPixelsRGBA32); 2435 TexPixelsAlpha8 = NULL; 2436 TexPixelsRGBA32 = NULL; 2437 TexPixelsUseColors = false; 2438 // Important: we leave TexReady untouched 2439 } 2440 2441 void ImFontAtlas::ClearFonts() 2442 { 2443 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!"); 2444 Fonts.clear_delete(); 2445 TexReady = false; 2446 } 2447 2448 void ImFontAtlas::Clear() 2449 { 2450 ClearInputData(); 2451 ClearTexData(); 2452 ClearFonts(); 2453 } 2454 2455 void ImFontAtlas::GetTexDataAsAlpha8(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel) 2456 { 2457 // Build atlas on demand 2458 if (TexPixelsAlpha8 == NULL) 2459 Build(); 2460 2461 *out_pixels = TexPixelsAlpha8; 2462 if (out_width) *out_width = TexWidth; 2463 if (out_height) *out_height = TexHeight; 2464 if (out_bytes_per_pixel) *out_bytes_per_pixel = 1; 2465 } 2466 2467 void ImFontAtlas::GetTexDataAsRGBA32(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel) 2468 { 2469 // Convert to RGBA32 format on demand 2470 // Although it is likely to be the most commonly used format, our font rendering is 1 channel / 8 bpp 2471 if (!TexPixelsRGBA32) 2472 { 2473 unsigned char* pixels = NULL; 2474 GetTexDataAsAlpha8(&pixels, NULL, NULL); 2475 if (pixels) 2476 { 2477 TexPixelsRGBA32 = (unsigned int*)IM_ALLOC((size_t)TexWidth * (size_t)TexHeight * 4); 2478 const unsigned char* src = pixels; 2479 unsigned int* dst = TexPixelsRGBA32; 2480 for (int n = TexWidth * TexHeight; n > 0; n--) 2481 *dst++ = IM_COL32(255, 255, 255, (unsigned int)(*src++)); 2482 } 2483 } 2484 2485 *out_pixels = (unsigned char*)TexPixelsRGBA32; 2486 if (out_width) *out_width = TexWidth; 2487 if (out_height) *out_height = TexHeight; 2488 if (out_bytes_per_pixel) *out_bytes_per_pixel = 4; 2489 } 2490 2491 ImFont* ImFontAtlas::AddFont(const ImFontConfig* font_cfg) 2492 { 2493 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!"); 2494 IM_ASSERT(font_cfg->FontData != NULL && font_cfg->FontDataSize > 0); 2495 IM_ASSERT(font_cfg->SizePixels > 0.0f); 2496 2497 // Create new font 2498 if (!font_cfg->MergeMode) 2499 Fonts.push_back(IM_NEW(ImFont)); 2500 else 2501 IM_ASSERT(!Fonts.empty() && "Cannot use MergeMode for the first font"); // When using MergeMode make sure that a font has already been added before. You can use ImGui::GetIO().Fonts->AddFontDefault() to add the default imgui font. 2502 2503 ConfigData.push_back(*font_cfg); 2504 ImFontConfig& new_font_cfg = ConfigData.back(); 2505 if (new_font_cfg.DstFont == NULL) 2506 new_font_cfg.DstFont = Fonts.back(); 2507 #if 0 2508 // DUCKSTATION-CHANGE: We maintain the allocations ourselves. Saves copying 14MB or so. 2509 if (!new_font_cfg.FontDataOwnedByAtlas) 2510 { 2511 new_font_cfg.FontData = IM_ALLOC(new_font_cfg.FontDataSize); 2512 new_font_cfg.FontDataOwnedByAtlas = true; 2513 memcpy(new_font_cfg.FontData, font_cfg->FontData, (size_t)new_font_cfg.FontDataSize); 2514 } 2515 #endif 2516 2517 if (new_font_cfg.DstFont->EllipsisChar == (ImWchar)-1) 2518 new_font_cfg.DstFont->EllipsisChar = font_cfg->EllipsisChar; 2519 2520 ImFontAtlasUpdateConfigDataPointers(this); 2521 2522 // Invalidate texture 2523 TexReady = false; 2524 ClearTexData(); 2525 return new_font_cfg.DstFont; 2526 } 2527 2528 // Default font TTF is compressed with stb_compress then base85 encoded (see misc/fonts/binary_to_compressed_c.cpp for encoder) 2529 static unsigned int stb_decompress_length(const unsigned char* input); 2530 static unsigned int stb_decompress(unsigned char* output, const unsigned char* input, unsigned int length); 2531 static const char* GetDefaultCompressedFontDataTTFBase85(); 2532 static unsigned int Decode85Byte(char c) { return c >= '\\' ? c-36 : c-35; } 2533 static void Decode85(const unsigned char* src, unsigned char* dst) 2534 { 2535 while (*src) 2536 { 2537 unsigned int tmp = Decode85Byte(src[0]) + 85 * (Decode85Byte(src[1]) + 85 * (Decode85Byte(src[2]) + 85 * (Decode85Byte(src[3]) + 85 * Decode85Byte(src[4])))); 2538 dst[0] = ((tmp >> 0) & 0xFF); dst[1] = ((tmp >> 8) & 0xFF); dst[2] = ((tmp >> 16) & 0xFF); dst[3] = ((tmp >> 24) & 0xFF); // We can't assume little-endianness. 2539 src += 5; 2540 dst += 4; 2541 } 2542 } 2543 2544 // Load embedded ProggyClean.ttf at size 13, disable oversampling 2545 ImFont* ImFontAtlas::AddFontDefault(const ImFontConfig* font_cfg_template) 2546 { 2547 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig(); 2548 if (!font_cfg_template) 2549 { 2550 font_cfg.OversampleH = font_cfg.OversampleV = 1; 2551 font_cfg.PixelSnapH = true; 2552 } 2553 if (font_cfg.SizePixels <= 0.0f) 2554 font_cfg.SizePixels = 13.0f * 1.0f; 2555 if (font_cfg.Name[0] == '\0') 2556 ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "ProggyClean.ttf, %dpx", (int)font_cfg.SizePixels); 2557 font_cfg.EllipsisChar = (ImWchar)0x0085; 2558 font_cfg.GlyphOffset.y = 1.0f * IM_TRUNC(font_cfg.SizePixels / 13.0f); // Add +1 offset per 13 units 2559 2560 const char* ttf_compressed_base85 = GetDefaultCompressedFontDataTTFBase85(); 2561 const ImWchar* glyph_ranges = font_cfg.GlyphRanges != NULL ? font_cfg.GlyphRanges : GetGlyphRangesDefault(); 2562 ImFont* font = AddFontFromMemoryCompressedBase85TTF(ttf_compressed_base85, font_cfg.SizePixels, &font_cfg, glyph_ranges); 2563 return font; 2564 } 2565 2566 ImFont* ImFontAtlas::AddFontFromFileTTF(const char* filename, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges) 2567 { 2568 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!"); 2569 size_t data_size = 0; 2570 void* data = ImFileLoadToMemory(filename, "rb", &data_size, 0); 2571 if (!data) 2572 { 2573 IM_ASSERT_USER_ERROR(0, "Could not load font file!"); 2574 return NULL; 2575 } 2576 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig(); 2577 if (font_cfg.Name[0] == '\0') 2578 { 2579 // Store a short copy of filename into into the font name for convenience 2580 const char* p; 2581 for (p = filename + strlen(filename); p > filename && p[-1] != '/' && p[-1] != '\\'; p--) {} 2582 ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "%s, %.0fpx", p, size_pixels); 2583 } 2584 return AddFontFromMemoryTTF(data, (int)data_size, size_pixels, &font_cfg, glyph_ranges); 2585 } 2586 2587 // NB: Transfer ownership of 'ttf_data' to ImFontAtlas, unless font_cfg_template->FontDataOwnedByAtlas == false. Owned TTF buffer will be deleted after Build(). 2588 ImFont* ImFontAtlas::AddFontFromMemoryTTF(void* font_data, int font_data_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges) 2589 { 2590 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!"); 2591 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig(); 2592 IM_ASSERT(font_cfg.FontData == NULL); 2593 IM_ASSERT(font_data_size > 100 && "Incorrect value for font_data_size!"); // Heuristic to prevent accidentally passing a wrong value to font_data_size. 2594 font_cfg.FontData = font_data; 2595 font_cfg.FontDataSize = font_data_size; 2596 font_cfg.SizePixels = size_pixels > 0.0f ? size_pixels : font_cfg.SizePixels; 2597 if (glyph_ranges) 2598 font_cfg.GlyphRanges = glyph_ranges; 2599 return AddFont(&font_cfg); 2600 } 2601 2602 ImFont* ImFontAtlas::AddFontFromMemoryCompressedTTF(const void* compressed_ttf_data, int compressed_ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges) 2603 { 2604 const unsigned int buf_decompressed_size = stb_decompress_length((const unsigned char*)compressed_ttf_data); 2605 unsigned char* buf_decompressed_data = (unsigned char*)IM_ALLOC(buf_decompressed_size); 2606 stb_decompress(buf_decompressed_data, (const unsigned char*)compressed_ttf_data, (unsigned int)compressed_ttf_size); 2607 2608 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig(); 2609 IM_ASSERT(font_cfg.FontData == NULL); 2610 font_cfg.FontDataOwnedByAtlas = true; 2611 return AddFontFromMemoryTTF(buf_decompressed_data, (int)buf_decompressed_size, size_pixels, &font_cfg, glyph_ranges); 2612 } 2613 2614 ImFont* ImFontAtlas::AddFontFromMemoryCompressedBase85TTF(const char* compressed_ttf_data_base85, float size_pixels, const ImFontConfig* font_cfg, const ImWchar* glyph_ranges) 2615 { 2616 int compressed_ttf_size = (((int)strlen(compressed_ttf_data_base85) + 4) / 5) * 4; 2617 void* compressed_ttf = IM_ALLOC((size_t)compressed_ttf_size); 2618 Decode85((const unsigned char*)compressed_ttf_data_base85, (unsigned char*)compressed_ttf); 2619 ImFont* font = AddFontFromMemoryCompressedTTF(compressed_ttf, compressed_ttf_size, size_pixels, font_cfg, glyph_ranges); 2620 IM_FREE(compressed_ttf); 2621 return font; 2622 } 2623 2624 int ImFontAtlas::AddCustomRectRegular(int width, int height) 2625 { 2626 IM_ASSERT(width > 0 && width <= 0xFFFF); 2627 IM_ASSERT(height > 0 && height <= 0xFFFF); 2628 ImFontAtlasCustomRect r; 2629 r.Width = (unsigned short)width; 2630 r.Height = (unsigned short)height; 2631 CustomRects.push_back(r); 2632 return CustomRects.Size - 1; // Return index 2633 } 2634 2635 int ImFontAtlas::AddCustomRectFontGlyph(ImFont* font, ImWchar id, int width, int height, float advance_x, const ImVec2& offset) 2636 { 2637 #ifdef IMGUI_USE_WCHAR32 2638 IM_ASSERT(id <= IM_UNICODE_CODEPOINT_MAX); 2639 #endif 2640 IM_ASSERT(font != NULL); 2641 IM_ASSERT(width > 0 && width <= 0xFFFF); 2642 IM_ASSERT(height > 0 && height <= 0xFFFF); 2643 ImFontAtlasCustomRect r; 2644 r.Width = (unsigned short)width; 2645 r.Height = (unsigned short)height; 2646 r.GlyphID = id; 2647 r.GlyphAdvanceX = advance_x; 2648 r.GlyphOffset = offset; 2649 r.Font = font; 2650 CustomRects.push_back(r); 2651 return CustomRects.Size - 1; // Return index 2652 } 2653 2654 void ImFontAtlas::CalcCustomRectUV(const ImFontAtlasCustomRect* rect, ImVec2* out_uv_min, ImVec2* out_uv_max) const 2655 { 2656 IM_ASSERT(TexWidth > 0 && TexHeight > 0); // Font atlas needs to be built before we can calculate UV coordinates 2657 IM_ASSERT(rect->IsPacked()); // Make sure the rectangle has been packed 2658 *out_uv_min = ImVec2((float)rect->X * TexUvScale.x, (float)rect->Y * TexUvScale.y); 2659 *out_uv_max = ImVec2((float)(rect->X + rect->Width) * TexUvScale.x, (float)(rect->Y + rect->Height) * TexUvScale.y); 2660 } 2661 2662 bool ImFontAtlas::GetMouseCursorTexData(ImGuiMouseCursor cursor_type, ImVec2* out_offset, ImVec2* out_size, ImVec2 out_uv_border[2], ImVec2 out_uv_fill[2]) 2663 { 2664 if (cursor_type <= ImGuiMouseCursor_None || cursor_type >= ImGuiMouseCursor_COUNT) 2665 return false; 2666 if (Flags & ImFontAtlasFlags_NoMouseCursors) 2667 return false; 2668 2669 IM_ASSERT(PackIdMouseCursors != -1); 2670 ImFontAtlasCustomRect* r = GetCustomRectByIndex(PackIdMouseCursors); 2671 ImVec2 pos = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][0] + ImVec2((float)r->X, (float)r->Y); 2672 ImVec2 size = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][1]; 2673 *out_size = size; 2674 *out_offset = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][2]; 2675 out_uv_border[0] = (pos) * TexUvScale; 2676 out_uv_border[1] = (pos + size) * TexUvScale; 2677 pos.x += FONT_ATLAS_DEFAULT_TEX_DATA_W + 1; 2678 out_uv_fill[0] = (pos) * TexUvScale; 2679 out_uv_fill[1] = (pos + size) * TexUvScale; 2680 return true; 2681 } 2682 2683 bool ImFontAtlas::Build() 2684 { 2685 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!"); 2686 2687 // Default font is none are specified 2688 if (ConfigData.Size == 0) 2689 AddFontDefault(); 2690 2691 // Select builder 2692 // - Note that we do not reassign to atlas->FontBuilderIO, since it is likely to point to static data which 2693 // may mess with some hot-reloading schemes. If you need to assign to this (for dynamic selection) AND are 2694 // using a hot-reloading scheme that messes up static data, store your own instance of ImFontBuilderIO somewhere 2695 // and point to it instead of pointing directly to return value of the GetBuilderXXX functions. 2696 const ImFontBuilderIO* builder_io = FontBuilderIO; 2697 if (builder_io == NULL) 2698 { 2699 #ifdef IMGUI_ENABLE_FREETYPE 2700 builder_io = ImGuiFreeType::GetBuilderForFreeType(); 2701 #elif defined(IMGUI_ENABLE_STB_TRUETYPE) 2702 builder_io = ImFontAtlasGetBuilderForStbTruetype(); 2703 #else 2704 IM_ASSERT(0); // Invalid Build function 2705 #endif 2706 } 2707 2708 // Build 2709 return builder_io->FontBuilder_Build(this); 2710 } 2711 2712 void ImFontAtlasBuildMultiplyCalcLookupTable(unsigned char out_table[256], float in_brighten_factor) 2713 { 2714 for (unsigned int i = 0; i < 256; i++) 2715 { 2716 unsigned int value = (unsigned int)(i * in_brighten_factor); 2717 out_table[i] = value > 255 ? 255 : (value & 0xFF); 2718 } 2719 } 2720 2721 void ImFontAtlasBuildMultiplyRectAlpha8(const unsigned char table[256], unsigned char* pixels, int x, int y, int w, int h, int stride) 2722 { 2723 IM_ASSERT_PARANOID(w <= stride); 2724 unsigned char* data = pixels + x + y * stride; 2725 for (int j = h; j > 0; j--, data += stride - w) 2726 for (int i = w; i > 0; i--, data++) 2727 *data = table[*data]; 2728 } 2729 2730 #ifdef IMGUI_ENABLE_STB_TRUETYPE 2731 // Temporary data for one source font (multiple source fonts can be merged into one destination ImFont) 2732 // (C++03 doesn't allow instancing ImVector<> with function-local types so we declare the type here.) 2733 struct ImFontBuildSrcData 2734 { 2735 stbtt_fontinfo FontInfo; 2736 stbtt_pack_range PackRange; // Hold the list of codepoints to pack (essentially points to Codepoints.Data) 2737 stbrp_rect* Rects; // Rectangle to pack. We first fill in their size and the packer will give us their position. 2738 stbtt_packedchar* PackedChars; // Output glyphs 2739 const ImWchar* SrcRanges; // Ranges as requested by user (user is allowed to request too much, e.g. 0x0020..0xFFFF) 2740 int DstIndex; // Index into atlas->Fonts[] and dst_tmp_array[] 2741 int GlyphsHighest; // Highest requested codepoint 2742 int GlyphsCount; // Glyph count (excluding missing glyphs and glyphs already set by an earlier source font) 2743 ImBitVector GlyphsSet; // Glyph bit map (random access, 1-bit per codepoint. This will be a maximum of 8KB) 2744 ImVector<int> GlyphsList; // Glyph codepoints list (flattened version of GlyphsSet) 2745 }; 2746 2747 // Temporary data for one destination ImFont* (multiple source fonts can be merged into one destination ImFont) 2748 struct ImFontBuildDstData 2749 { 2750 int SrcCount; // Number of source fonts targeting this destination font. 2751 int GlyphsHighest; 2752 int GlyphsCount; 2753 ImBitVector GlyphsSet; // This is used to resolve collision when multiple sources are merged into a same destination font. 2754 }; 2755 2756 static void UnpackBitVectorToFlatIndexList(const ImBitVector* in, ImVector<int>* out) 2757 { 2758 IM_ASSERT(sizeof(in->Storage.Data[0]) == sizeof(int)); 2759 const ImU32* it_begin = in->Storage.begin(); 2760 const ImU32* it_end = in->Storage.end(); 2761 for (const ImU32* it = it_begin; it < it_end; it++) 2762 if (ImU32 entries_32 = *it) 2763 for (ImU32 bit_n = 0; bit_n < 32; bit_n++) 2764 if (entries_32 & ((ImU32)1 << bit_n)) 2765 out->push_back((int)(((it - it_begin) << 5) + bit_n)); 2766 } 2767 2768 static bool ImFontAtlasBuildWithStbTruetype(ImFontAtlas* atlas) 2769 { 2770 IM_ASSERT(atlas->ConfigData.Size > 0); 2771 2772 ImFontAtlasBuildInit(atlas); 2773 2774 // Clear atlas 2775 atlas->TexID = (ImTextureID)NULL; 2776 atlas->TexWidth = atlas->TexHeight = 0; 2777 atlas->TexUvScale = ImVec2(0.0f, 0.0f); 2778 atlas->TexUvWhitePixel = ImVec2(0.0f, 0.0f); 2779 atlas->ClearTexData(); 2780 2781 // Temporary storage for building 2782 ImVector<ImFontBuildSrcData> src_tmp_array; 2783 ImVector<ImFontBuildDstData> dst_tmp_array; 2784 src_tmp_array.resize(atlas->ConfigData.Size); 2785 dst_tmp_array.resize(atlas->Fonts.Size); 2786 memset(src_tmp_array.Data, 0, (size_t)src_tmp_array.size_in_bytes()); 2787 memset(dst_tmp_array.Data, 0, (size_t)dst_tmp_array.size_in_bytes()); 2788 2789 // 1. Initialize font loading structure, check font data validity 2790 for (int src_i = 0; src_i < atlas->ConfigData.Size; src_i++) 2791 { 2792 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i]; 2793 ImFontConfig& cfg = atlas->ConfigData[src_i]; 2794 IM_ASSERT(cfg.DstFont && (!cfg.DstFont->IsLoaded() || cfg.DstFont->ContainerAtlas == atlas)); 2795 2796 // Find index from cfg.DstFont (we allow the user to set cfg.DstFont. Also it makes casual debugging nicer than when storing indices) 2797 src_tmp.DstIndex = -1; 2798 for (int output_i = 0; output_i < atlas->Fonts.Size && src_tmp.DstIndex == -1; output_i++) 2799 if (cfg.DstFont == atlas->Fonts[output_i]) 2800 src_tmp.DstIndex = output_i; 2801 if (src_tmp.DstIndex == -1) 2802 { 2803 IM_ASSERT(src_tmp.DstIndex != -1); // cfg.DstFont not pointing within atlas->Fonts[] array? 2804 return false; 2805 } 2806 // Initialize helper structure for font loading and verify that the TTF/OTF data is correct 2807 const int font_offset = stbtt_GetFontOffsetForIndex((unsigned char*)cfg.FontData, cfg.FontNo); 2808 IM_ASSERT(font_offset >= 0 && "FontData is incorrect, or FontNo cannot be found."); 2809 if (!stbtt_InitFont(&src_tmp.FontInfo, (unsigned char*)cfg.FontData, font_offset)) 2810 { 2811 IM_ASSERT(0 && "stbtt_InitFont(): failed to parse FontData. It is correct and complete? Check FontDataSize."); 2812 return false; 2813 } 2814 2815 // Measure highest codepoints 2816 ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex]; 2817 src_tmp.SrcRanges = cfg.GlyphRanges ? cfg.GlyphRanges : atlas->GetGlyphRangesDefault(); 2818 for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2) 2819 { 2820 // Check for valid range. This may also help detect *some* dangling pointers, because a common 2821 // user error is to setup ImFontConfig::GlyphRanges with a pointer to data that isn't persistent. 2822 IM_ASSERT(src_range[0] <= src_range[1]); 2823 src_tmp.GlyphsHighest = ImMax(src_tmp.GlyphsHighest, (int)src_range[1]); 2824 } 2825 dst_tmp.SrcCount++; 2826 dst_tmp.GlyphsHighest = ImMax(dst_tmp.GlyphsHighest, src_tmp.GlyphsHighest); 2827 } 2828 2829 // 2. For every requested codepoint, check for their presence in the font data, and handle redundancy or overlaps between source fonts to avoid unused glyphs. 2830 int total_glyphs_count = 0; 2831 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++) 2832 { 2833 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i]; 2834 ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex]; 2835 src_tmp.GlyphsSet.Create(src_tmp.GlyphsHighest + 1); 2836 if (dst_tmp.GlyphsSet.Storage.empty()) 2837 dst_tmp.GlyphsSet.Create(dst_tmp.GlyphsHighest + 1); 2838 2839 for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2) 2840 for (unsigned int codepoint = src_range[0]; codepoint <= src_range[1]; codepoint++) 2841 { 2842 if (dst_tmp.GlyphsSet.TestBit(codepoint)) // Don't overwrite existing glyphs. We could make this an option for MergeMode (e.g. MergeOverwrite==true) 2843 continue; 2844 if (!stbtt_FindGlyphIndex(&src_tmp.FontInfo, codepoint)) // It is actually in the font? 2845 continue; 2846 2847 // Add to avail set/counters 2848 src_tmp.GlyphsCount++; 2849 dst_tmp.GlyphsCount++; 2850 src_tmp.GlyphsSet.SetBit(codepoint); 2851 dst_tmp.GlyphsSet.SetBit(codepoint); 2852 total_glyphs_count++; 2853 } 2854 } 2855 2856 // 3. Unpack our bit map into a flat list (we now have all the Unicode points that we know are requested _and_ available _and_ not overlapping another) 2857 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++) 2858 { 2859 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i]; 2860 src_tmp.GlyphsList.reserve(src_tmp.GlyphsCount); 2861 UnpackBitVectorToFlatIndexList(&src_tmp.GlyphsSet, &src_tmp.GlyphsList); 2862 src_tmp.GlyphsSet.Clear(); 2863 IM_ASSERT(src_tmp.GlyphsList.Size == src_tmp.GlyphsCount); 2864 } 2865 for (int dst_i = 0; dst_i < dst_tmp_array.Size; dst_i++) 2866 dst_tmp_array[dst_i].GlyphsSet.Clear(); 2867 dst_tmp_array.clear(); 2868 2869 // Allocate packing character data and flag packed characters buffer as non-packed (x0=y0=x1=y1=0) 2870 // (We technically don't need to zero-clear buf_rects, but let's do it for the sake of sanity) 2871 ImVector<stbrp_rect> buf_rects; 2872 ImVector<stbtt_packedchar> buf_packedchars; 2873 buf_rects.resize(total_glyphs_count); 2874 buf_packedchars.resize(total_glyphs_count); 2875 memset(buf_rects.Data, 0, (size_t)buf_rects.size_in_bytes()); 2876 memset(buf_packedchars.Data, 0, (size_t)buf_packedchars.size_in_bytes()); 2877 2878 // 4. Gather glyphs sizes so we can pack them in our virtual canvas. 2879 int total_surface = 0; 2880 int buf_rects_out_n = 0; 2881 int buf_packedchars_out_n = 0; 2882 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++) 2883 { 2884 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i]; 2885 if (src_tmp.GlyphsCount == 0) 2886 continue; 2887 2888 src_tmp.Rects = &buf_rects[buf_rects_out_n]; 2889 src_tmp.PackedChars = &buf_packedchars[buf_packedchars_out_n]; 2890 buf_rects_out_n += src_tmp.GlyphsCount; 2891 buf_packedchars_out_n += src_tmp.GlyphsCount; 2892 2893 // Convert our ranges in the format stb_truetype wants 2894 ImFontConfig& cfg = atlas->ConfigData[src_i]; 2895 src_tmp.PackRange.font_size = cfg.SizePixels * cfg.RasterizerDensity; 2896 src_tmp.PackRange.first_unicode_codepoint_in_range = 0; 2897 src_tmp.PackRange.array_of_unicode_codepoints = src_tmp.GlyphsList.Data; 2898 src_tmp.PackRange.num_chars = src_tmp.GlyphsList.Size; 2899 src_tmp.PackRange.chardata_for_range = src_tmp.PackedChars; 2900 src_tmp.PackRange.h_oversample = (unsigned char)cfg.OversampleH; 2901 src_tmp.PackRange.v_oversample = (unsigned char)cfg.OversampleV; 2902 2903 // Gather the sizes of all rectangles we will need to pack (this loop is based on stbtt_PackFontRangesGatherRects) 2904 const float scale = (cfg.SizePixels > 0.0f) ? stbtt_ScaleForPixelHeight(&src_tmp.FontInfo, cfg.SizePixels * cfg.RasterizerDensity) : stbtt_ScaleForMappingEmToPixels(&src_tmp.FontInfo, -cfg.SizePixels * cfg.RasterizerDensity); 2905 const int padding = atlas->TexGlyphPadding; 2906 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsList.Size; glyph_i++) 2907 { 2908 int x0, y0, x1, y1; 2909 const int glyph_index_in_font = stbtt_FindGlyphIndex(&src_tmp.FontInfo, src_tmp.GlyphsList[glyph_i]); 2910 IM_ASSERT(glyph_index_in_font != 0); 2911 stbtt_GetGlyphBitmapBoxSubpixel(&src_tmp.FontInfo, glyph_index_in_font, scale * cfg.OversampleH, scale * cfg.OversampleV, 0, 0, &x0, &y0, &x1, &y1); 2912 src_tmp.Rects[glyph_i].w = (stbrp_coord)(x1 - x0 + padding + cfg.OversampleH - 1); 2913 src_tmp.Rects[glyph_i].h = (stbrp_coord)(y1 - y0 + padding + cfg.OversampleV - 1); 2914 total_surface += src_tmp.Rects[glyph_i].w * src_tmp.Rects[glyph_i].h; 2915 } 2916 } 2917 2918 // We need a width for the skyline algorithm, any width! 2919 // The exact width doesn't really matter much, but some API/GPU have texture size limitations and increasing width can decrease height. 2920 // User can override TexDesiredWidth and TexGlyphPadding if they wish, otherwise we use a simple heuristic to select the width based on expected surface. 2921 const int surface_sqrt = (int)ImSqrt((float)total_surface) + 1; 2922 atlas->TexHeight = 0; 2923 if (atlas->TexDesiredWidth > 0) 2924 atlas->TexWidth = atlas->TexDesiredWidth; 2925 else 2926 atlas->TexWidth = (surface_sqrt >= 4096 * 0.7f) ? 4096 : (surface_sqrt >= 2048 * 0.7f) ? 2048 : (surface_sqrt >= 1024 * 0.7f) ? 1024 : 512; 2927 2928 // 5. Start packing 2929 // Pack our extra data rectangles first, so it will be on the upper-left corner of our texture (UV will have small values). 2930 const int TEX_HEIGHT_MAX = 1024 * 32; 2931 stbtt_pack_context spc = {}; 2932 stbtt_PackBegin(&spc, NULL, atlas->TexWidth, TEX_HEIGHT_MAX, 0, atlas->TexGlyphPadding, NULL); 2933 ImFontAtlasBuildPackCustomRects(atlas, spc.pack_info); 2934 2935 // 6. Pack each source font. No rendering yet, we are working with rectangles in an infinitely tall texture at this point. 2936 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++) 2937 { 2938 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i]; 2939 if (src_tmp.GlyphsCount == 0) 2940 continue; 2941 2942 stbrp_pack_rects((stbrp_context*)spc.pack_info, src_tmp.Rects, src_tmp.GlyphsCount); 2943 2944 // Extend texture height and mark missing glyphs as non-packed so we won't render them. 2945 // FIXME: We are not handling packing failure here (would happen if we got off TEX_HEIGHT_MAX or if a single if larger than TexWidth?) 2946 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++) 2947 if (src_tmp.Rects[glyph_i].was_packed) 2948 atlas->TexHeight = ImMax(atlas->TexHeight, src_tmp.Rects[glyph_i].y + src_tmp.Rects[glyph_i].h); 2949 } 2950 2951 // 7. Allocate texture 2952 atlas->TexHeight = (atlas->Flags & ImFontAtlasFlags_NoPowerOfTwoHeight) ? (atlas->TexHeight + 1) : ImUpperPowerOfTwo(atlas->TexHeight); 2953 atlas->TexUvScale = ImVec2(1.0f / atlas->TexWidth, 1.0f / atlas->TexHeight); 2954 atlas->TexPixelsAlpha8 = (unsigned char*)IM_ALLOC(atlas->TexWidth * atlas->TexHeight); 2955 memset(atlas->TexPixelsAlpha8, 0, atlas->TexWidth * atlas->TexHeight); 2956 spc.pixels = atlas->TexPixelsAlpha8; 2957 spc.height = atlas->TexHeight; 2958 2959 // 8. Render/rasterize font characters into the texture 2960 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++) 2961 { 2962 ImFontConfig& cfg = atlas->ConfigData[src_i]; 2963 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i]; 2964 if (src_tmp.GlyphsCount == 0) 2965 continue; 2966 2967 stbtt_PackFontRangesRenderIntoRects(&spc, &src_tmp.FontInfo, &src_tmp.PackRange, 1, src_tmp.Rects); 2968 2969 // Apply multiply operator 2970 if (cfg.RasterizerMultiply != 1.0f) 2971 { 2972 unsigned char multiply_table[256]; 2973 ImFontAtlasBuildMultiplyCalcLookupTable(multiply_table, cfg.RasterizerMultiply); 2974 stbrp_rect* r = &src_tmp.Rects[0]; 2975 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++, r++) 2976 if (r->was_packed) 2977 ImFontAtlasBuildMultiplyRectAlpha8(multiply_table, atlas->TexPixelsAlpha8, r->x, r->y, r->w, r->h, atlas->TexWidth * 1); 2978 } 2979 src_tmp.Rects = NULL; 2980 } 2981 2982 // End packing 2983 stbtt_PackEnd(&spc); 2984 buf_rects.clear(); 2985 2986 // 9. Setup ImFont and glyphs for runtime 2987 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++) 2988 { 2989 // When merging fonts with MergeMode=true: 2990 // - We can have multiple input fonts writing into a same destination font. 2991 // - dst_font->ConfigData is != from cfg which is our source configuration. 2992 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i]; 2993 ImFontConfig& cfg = atlas->ConfigData[src_i]; 2994 ImFont* dst_font = cfg.DstFont; 2995 2996 const float font_scale = stbtt_ScaleForPixelHeight(&src_tmp.FontInfo, cfg.SizePixels); 2997 int unscaled_ascent, unscaled_descent, unscaled_line_gap; 2998 stbtt_GetFontVMetrics(&src_tmp.FontInfo, &unscaled_ascent, &unscaled_descent, &unscaled_line_gap); 2999 3000 const float ascent = ImCeil(unscaled_ascent * font_scale); 3001 const float descent = ImFloor(unscaled_descent * font_scale); 3002 ImFontAtlasBuildSetupFont(atlas, dst_font, &cfg, ascent, descent); 3003 const float font_off_x = cfg.GlyphOffset.x; 3004 const float font_off_y = cfg.GlyphOffset.y + IM_ROUND(dst_font->Ascent); 3005 3006 const float inv_rasterization_scale = 1.0f / cfg.RasterizerDensity; 3007 3008 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++) 3009 { 3010 // Register glyph 3011 const int codepoint = src_tmp.GlyphsList[glyph_i]; 3012 const stbtt_packedchar& pc = src_tmp.PackedChars[glyph_i]; 3013 stbtt_aligned_quad q; 3014 float unused_x = 0.0f, unused_y = 0.0f; 3015 stbtt_GetPackedQuad(src_tmp.PackedChars, atlas->TexWidth, atlas->TexHeight, glyph_i, &unused_x, &unused_y, &q, 0); 3016 float x0 = q.x0 * inv_rasterization_scale + font_off_x; 3017 float y0 = q.y0 * inv_rasterization_scale + font_off_y; 3018 float x1 = q.x1 * inv_rasterization_scale + font_off_x; 3019 float y1 = q.y1 * inv_rasterization_scale + font_off_y; 3020 dst_font->AddGlyph(&cfg, (ImWchar)codepoint, x0, y0, x1, y1, q.s0, q.t0, q.s1, q.t1, pc.xadvance * inv_rasterization_scale); 3021 } 3022 } 3023 3024 // Cleanup 3025 src_tmp_array.clear_destruct(); 3026 3027 ImFontAtlasBuildFinish(atlas); 3028 return true; 3029 } 3030 3031 const ImFontBuilderIO* ImFontAtlasGetBuilderForStbTruetype() 3032 { 3033 static ImFontBuilderIO io; 3034 io.FontBuilder_Build = ImFontAtlasBuildWithStbTruetype; 3035 return &io; 3036 } 3037 3038 #endif // IMGUI_ENABLE_STB_TRUETYPE 3039 3040 void ImFontAtlasUpdateConfigDataPointers(ImFontAtlas* atlas) 3041 { 3042 for (ImFontConfig& font_cfg : atlas->ConfigData) 3043 { 3044 ImFont* font = font_cfg.DstFont; 3045 if (!font_cfg.MergeMode) 3046 { 3047 font->ConfigData = &font_cfg; 3048 font->ConfigDataCount = 0; 3049 } 3050 font->ConfigDataCount++; 3051 } 3052 } 3053 3054 void ImFontAtlasBuildSetupFont(ImFontAtlas* atlas, ImFont* font, ImFontConfig* font_config, float ascent, float descent) 3055 { 3056 if (!font_config->MergeMode) 3057 { 3058 font->ClearOutputData(); 3059 font->FontSize = font_config->SizePixels; 3060 IM_ASSERT(font->ConfigData == font_config); 3061 font->ContainerAtlas = atlas; 3062 font->Ascent = ascent; 3063 font->Descent = descent; 3064 } 3065 } 3066 3067 void ImFontAtlasBuildPackCustomRects(ImFontAtlas* atlas, void* stbrp_context_opaque) 3068 { 3069 stbrp_context* pack_context = (stbrp_context*)stbrp_context_opaque; 3070 IM_ASSERT(pack_context != NULL); 3071 3072 ImVector<ImFontAtlasCustomRect>& user_rects = atlas->CustomRects; 3073 IM_ASSERT(user_rects.Size >= 1); // We expect at least the default custom rects to be registered, else something went wrong. 3074 #ifdef __GNUC__ 3075 if (user_rects.Size < 1) { __builtin_unreachable(); } // Workaround for GCC bug if IM_ASSERT() is defined to conditionally throw (see #5343) 3076 #endif 3077 3078 ImVector<stbrp_rect> pack_rects; 3079 pack_rects.resize(user_rects.Size); 3080 memset(pack_rects.Data, 0, (size_t)pack_rects.size_in_bytes()); 3081 for (int i = 0; i < user_rects.Size; i++) 3082 { 3083 pack_rects[i].w = user_rects[i].Width; 3084 pack_rects[i].h = user_rects[i].Height; 3085 } 3086 stbrp_pack_rects(pack_context, &pack_rects[0], pack_rects.Size); 3087 for (int i = 0; i < pack_rects.Size; i++) 3088 if (pack_rects[i].was_packed) 3089 { 3090 user_rects[i].X = (unsigned short)pack_rects[i].x; 3091 user_rects[i].Y = (unsigned short)pack_rects[i].y; 3092 IM_ASSERT(pack_rects[i].w == user_rects[i].Width && pack_rects[i].h == user_rects[i].Height); 3093 atlas->TexHeight = ImMax(atlas->TexHeight, pack_rects[i].y + pack_rects[i].h); 3094 } 3095 } 3096 3097 void ImFontAtlasBuildRender8bppRectFromString(ImFontAtlas* atlas, int x, int y, int w, int h, const char* in_str, char in_marker_char, unsigned char in_marker_pixel_value) 3098 { 3099 IM_ASSERT(x >= 0 && x + w <= atlas->TexWidth); 3100 IM_ASSERT(y >= 0 && y + h <= atlas->TexHeight); 3101 unsigned char* out_pixel = atlas->TexPixelsAlpha8 + x + (y * atlas->TexWidth); 3102 for (int off_y = 0; off_y < h; off_y++, out_pixel += atlas->TexWidth, in_str += w) 3103 for (int off_x = 0; off_x < w; off_x++) 3104 out_pixel[off_x] = (in_str[off_x] == in_marker_char) ? in_marker_pixel_value : 0x00; 3105 } 3106 3107 void ImFontAtlasBuildRender32bppRectFromString(ImFontAtlas* atlas, int x, int y, int w, int h, const char* in_str, char in_marker_char, unsigned int in_marker_pixel_value) 3108 { 3109 IM_ASSERT(x >= 0 && x + w <= atlas->TexWidth); 3110 IM_ASSERT(y >= 0 && y + h <= atlas->TexHeight); 3111 unsigned int* out_pixel = atlas->TexPixelsRGBA32 + x + (y * atlas->TexWidth); 3112 for (int off_y = 0; off_y < h; off_y++, out_pixel += atlas->TexWidth, in_str += w) 3113 for (int off_x = 0; off_x < w; off_x++) 3114 out_pixel[off_x] = (in_str[off_x] == in_marker_char) ? in_marker_pixel_value : IM_COL32_BLACK_TRANS; 3115 } 3116 3117 static void ImFontAtlasBuildRenderDefaultTexData(ImFontAtlas* atlas) 3118 { 3119 ImFontAtlasCustomRect* r = atlas->GetCustomRectByIndex(atlas->PackIdMouseCursors); 3120 IM_ASSERT(r->IsPacked()); 3121 3122 const int w = atlas->TexWidth; 3123 if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors)) 3124 { 3125 // Render/copy pixels 3126 IM_ASSERT(r->Width == FONT_ATLAS_DEFAULT_TEX_DATA_W * 2 + 1 && r->Height == FONT_ATLAS_DEFAULT_TEX_DATA_H); 3127 const int x_for_white = r->X; 3128 const int x_for_black = r->X + FONT_ATLAS_DEFAULT_TEX_DATA_W + 1; 3129 if (atlas->TexPixelsAlpha8 != NULL) 3130 { 3131 ImFontAtlasBuildRender8bppRectFromString(atlas, x_for_white, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, '.', 0xFF); 3132 ImFontAtlasBuildRender8bppRectFromString(atlas, x_for_black, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, 'X', 0xFF); 3133 } 3134 else 3135 { 3136 ImFontAtlasBuildRender32bppRectFromString(atlas, x_for_white, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, '.', IM_COL32_WHITE); 3137 ImFontAtlasBuildRender32bppRectFromString(atlas, x_for_black, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, 'X', IM_COL32_WHITE); 3138 } 3139 } 3140 else 3141 { 3142 // Render 4 white pixels 3143 IM_ASSERT(r->Width == 2 && r->Height == 2); 3144 const int offset = (int)r->X + (int)r->Y * w; 3145 if (atlas->TexPixelsAlpha8 != NULL) 3146 { 3147 atlas->TexPixelsAlpha8[offset] = atlas->TexPixelsAlpha8[offset + 1] = atlas->TexPixelsAlpha8[offset + w] = atlas->TexPixelsAlpha8[offset + w + 1] = 0xFF; 3148 } 3149 else 3150 { 3151 atlas->TexPixelsRGBA32[offset] = atlas->TexPixelsRGBA32[offset + 1] = atlas->TexPixelsRGBA32[offset + w] = atlas->TexPixelsRGBA32[offset + w + 1] = IM_COL32_WHITE; 3152 } 3153 } 3154 atlas->TexUvWhitePixel = ImVec2((r->X + 0.5f) * atlas->TexUvScale.x, (r->Y + 0.5f) * atlas->TexUvScale.y); 3155 } 3156 3157 static void ImFontAtlasBuildRenderLinesTexData(ImFontAtlas* atlas) 3158 { 3159 if (atlas->Flags & ImFontAtlasFlags_NoBakedLines) 3160 return; 3161 3162 // This generates a triangular shape in the texture, with the various line widths stacked on top of each other to allow interpolation between them 3163 ImFontAtlasCustomRect* r = atlas->GetCustomRectByIndex(atlas->PackIdLines); 3164 IM_ASSERT(r->IsPacked()); 3165 for (unsigned int n = 0; n < IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 1; n++) // +1 because of the zero-width row 3166 { 3167 // Each line consists of at least two empty pixels at the ends, with a line of solid pixels in the middle 3168 unsigned int y = n; 3169 unsigned int line_width = n; 3170 unsigned int pad_left = (r->Width - line_width) / 2; 3171 unsigned int pad_right = r->Width - (pad_left + line_width); 3172 3173 // Write each slice 3174 IM_ASSERT(pad_left + line_width + pad_right == r->Width && y < r->Height); // Make sure we're inside the texture bounds before we start writing pixels 3175 if (atlas->TexPixelsAlpha8 != NULL) 3176 { 3177 unsigned char* write_ptr = &atlas->TexPixelsAlpha8[r->X + ((r->Y + y) * atlas->TexWidth)]; 3178 for (unsigned int i = 0; i < pad_left; i++) 3179 *(write_ptr + i) = 0x00; 3180 3181 for (unsigned int i = 0; i < line_width; i++) 3182 *(write_ptr + pad_left + i) = 0xFF; 3183 3184 for (unsigned int i = 0; i < pad_right; i++) 3185 *(write_ptr + pad_left + line_width + i) = 0x00; 3186 } 3187 else 3188 { 3189 unsigned int* write_ptr = &atlas->TexPixelsRGBA32[r->X + ((r->Y + y) * atlas->TexWidth)]; 3190 for (unsigned int i = 0; i < pad_left; i++) 3191 *(write_ptr + i) = IM_COL32(255, 255, 255, 0); 3192 3193 for (unsigned int i = 0; i < line_width; i++) 3194 *(write_ptr + pad_left + i) = IM_COL32_WHITE; 3195 3196 for (unsigned int i = 0; i < pad_right; i++) 3197 *(write_ptr + pad_left + line_width + i) = IM_COL32(255, 255, 255, 0); 3198 } 3199 3200 // Calculate UVs for this line 3201 ImVec2 uv0 = ImVec2((float)(r->X + pad_left - 1), (float)(r->Y + y)) * atlas->TexUvScale; 3202 ImVec2 uv1 = ImVec2((float)(r->X + pad_left + line_width + 1), (float)(r->Y + y + 1)) * atlas->TexUvScale; 3203 float half_v = (uv0.y + uv1.y) * 0.5f; // Calculate a constant V in the middle of the row to avoid sampling artifacts 3204 atlas->TexUvLines[n] = ImVec4(uv0.x, half_v, uv1.x, half_v); 3205 } 3206 } 3207 3208 // Note: this is called / shared by both the stb_truetype and the FreeType builder 3209 void ImFontAtlasBuildInit(ImFontAtlas* atlas) 3210 { 3211 // Round font size 3212 // - We started rounding in 1.90 WIP (18991) as our layout system currently doesn't support non-rounded font size well yet. 3213 // - Note that using io.FontGlobalScale or SetWindowFontScale(), with are legacy-ish, partially supported features, can still lead to unrounded sizes. 3214 // - We may support it better later and remove this rounding. 3215 for (ImFontConfig& cfg : atlas->ConfigData) 3216 cfg.SizePixels = ImTrunc(cfg.SizePixels); 3217 3218 // Register texture region for mouse cursors or standard white pixels 3219 if (atlas->PackIdMouseCursors < 0) 3220 { 3221 if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors)) 3222 atlas->PackIdMouseCursors = atlas->AddCustomRectRegular(FONT_ATLAS_DEFAULT_TEX_DATA_W * 2 + 1, FONT_ATLAS_DEFAULT_TEX_DATA_H); 3223 else 3224 atlas->PackIdMouseCursors = atlas->AddCustomRectRegular(2, 2); 3225 } 3226 3227 // Register texture region for thick lines 3228 // The +2 here is to give space for the end caps, whilst height +1 is to accommodate the fact we have a zero-width row 3229 if (atlas->PackIdLines < 0) 3230 { 3231 if (!(atlas->Flags & ImFontAtlasFlags_NoBakedLines)) 3232 atlas->PackIdLines = atlas->AddCustomRectRegular(IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 2, IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 1); 3233 } 3234 } 3235 3236 // This is called/shared by both the stb_truetype and the FreeType builder. 3237 void ImFontAtlasBuildFinish(ImFontAtlas* atlas) 3238 { 3239 // Render into our custom data blocks 3240 IM_ASSERT(atlas->TexPixelsAlpha8 != NULL || atlas->TexPixelsRGBA32 != NULL); 3241 ImFontAtlasBuildRenderDefaultTexData(atlas); 3242 ImFontAtlasBuildRenderLinesTexData(atlas); 3243 3244 // Register custom rectangle glyphs 3245 for (int i = 0; i < atlas->CustomRects.Size; i++) 3246 { 3247 const ImFontAtlasCustomRect* r = &atlas->CustomRects[i]; 3248 if (r->Font == NULL || r->GlyphID == 0) 3249 continue; 3250 3251 // Will ignore ImFontConfig settings: GlyphMinAdvanceX, GlyphMinAdvanceY, GlyphExtraSpacing, PixelSnapH 3252 IM_ASSERT(r->Font->ContainerAtlas == atlas); 3253 ImVec2 uv0, uv1; 3254 atlas->CalcCustomRectUV(r, &uv0, &uv1); 3255 r->Font->AddGlyph(NULL, (ImWchar)r->GlyphID, r->GlyphOffset.x, r->GlyphOffset.y, r->GlyphOffset.x + r->Width, r->GlyphOffset.y + r->Height, uv0.x, uv0.y, uv1.x, uv1.y, r->GlyphAdvanceX); 3256 } 3257 3258 // Build all fonts lookup tables 3259 for (ImFont* font : atlas->Fonts) 3260 if (font->DirtyLookupTables) 3261 font->BuildLookupTable(); 3262 3263 atlas->TexReady = true; 3264 } 3265 3266 // Retrieve list of range (2 int per range, values are inclusive) 3267 const ImWchar* ImFontAtlas::GetGlyphRangesDefault() 3268 { 3269 static const ImWchar ranges[] = 3270 { 3271 0x0020, 0x00FF, // Basic Latin + Latin Supplement 3272 0, 3273 }; 3274 return &ranges[0]; 3275 } 3276 3277 const ImWchar* ImFontAtlas::GetGlyphRangesGreek() 3278 { 3279 static const ImWchar ranges[] = 3280 { 3281 0x0020, 0x00FF, // Basic Latin + Latin Supplement 3282 0x0370, 0x03FF, // Greek and Coptic 3283 0, 3284 }; 3285 return &ranges[0]; 3286 } 3287 3288 const ImWchar* ImFontAtlas::GetGlyphRangesKorean() 3289 { 3290 static const ImWchar ranges[] = 3291 { 3292 0x0020, 0x00FF, // Basic Latin + Latin Supplement 3293 0x3131, 0x3163, // Korean alphabets 3294 0xAC00, 0xD7A3, // Korean characters 3295 0xFFFD, 0xFFFD, // Invalid 3296 0, 3297 }; 3298 return &ranges[0]; 3299 } 3300 3301 const ImWchar* ImFontAtlas::GetGlyphRangesChineseFull() 3302 { 3303 static const ImWchar ranges[] = 3304 { 3305 0x0020, 0x00FF, // Basic Latin + Latin Supplement 3306 0x2000, 0x206F, // General Punctuation 3307 0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana 3308 0x31F0, 0x31FF, // Katakana Phonetic Extensions 3309 0xFF00, 0xFFEF, // Half-width characters 3310 0xFFFD, 0xFFFD, // Invalid 3311 0x4e00, 0x9FAF, // CJK Ideograms 3312 0, 3313 }; 3314 return &ranges[0]; 3315 } 3316 3317 static void UnpackAccumulativeOffsetsIntoRanges(int base_codepoint, const short* accumulative_offsets, int accumulative_offsets_count, ImWchar* out_ranges) 3318 { 3319 for (int n = 0; n < accumulative_offsets_count; n++, out_ranges += 2) 3320 { 3321 out_ranges[0] = out_ranges[1] = (ImWchar)(base_codepoint + accumulative_offsets[n]); 3322 base_codepoint += accumulative_offsets[n]; 3323 } 3324 out_ranges[0] = 0; 3325 } 3326 3327 //------------------------------------------------------------------------- 3328 // [SECTION] ImFontAtlas glyph ranges helpers 3329 //------------------------------------------------------------------------- 3330 3331 const ImWchar* ImFontAtlas::GetGlyphRangesChineseSimplifiedCommon() 3332 { 3333 // Store 2500 regularly used characters for Simplified Chinese. 3334 // Sourced from https://zh.wiktionary.org/wiki/%E9%99%84%E5%BD%95:%E7%8E%B0%E4%BB%A3%E6%B1%89%E8%AF%AD%E5%B8%B8%E7%94%A8%E5%AD%97%E8%A1%A8 3335 // This table covers 97.97% of all characters used during the month in July, 1987. 3336 // You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters. 3337 // (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.) 3338 static const short accumulative_offsets_from_0x4E00[] = 3339 { 3340 0,1,2,4,1,1,1,1,2,1,3,2,1,2,2,1,1,1,1,1,5,2,1,2,3,3,3,2,2,4,1,1,1,2,1,5,2,3,1,2,1,2,1,1,2,1,1,2,2,1,4,1,1,1,1,5,10,1,2,19,2,1,2,1,2,1,2,1,2, 3341 1,5,1,6,3,2,1,2,2,1,1,1,4,8,5,1,1,4,1,1,3,1,2,1,5,1,2,1,1,1,10,1,1,5,2,4,6,1,4,2,2,2,12,2,1,1,6,1,1,1,4,1,1,4,6,5,1,4,2,2,4,10,7,1,1,4,2,4, 3342 2,1,4,3,6,10,12,5,7,2,14,2,9,1,1,6,7,10,4,7,13,1,5,4,8,4,1,1,2,28,5,6,1,1,5,2,5,20,2,2,9,8,11,2,9,17,1,8,6,8,27,4,6,9,20,11,27,6,68,2,2,1,1, 3343 1,2,1,2,2,7,6,11,3,3,1,1,3,1,2,1,1,1,1,1,3,1,1,8,3,4,1,5,7,2,1,4,4,8,4,2,1,2,1,1,4,5,6,3,6,2,12,3,1,3,9,2,4,3,4,1,5,3,3,1,3,7,1,5,1,1,1,1,2, 3344 3,4,5,2,3,2,6,1,1,2,1,7,1,7,3,4,5,15,2,2,1,5,3,22,19,2,1,1,1,1,2,5,1,1,1,6,1,1,12,8,2,9,18,22,4,1,1,5,1,16,1,2,7,10,15,1,1,6,2,4,1,2,4,1,6, 3345 1,1,3,2,4,1,6,4,5,1,2,1,1,2,1,10,3,1,3,2,1,9,3,2,5,7,2,19,4,3,6,1,1,1,1,1,4,3,2,1,1,1,2,5,3,1,1,1,2,2,1,1,2,1,1,2,1,3,1,1,1,3,7,1,4,1,1,2,1, 3346 1,2,1,2,4,4,3,8,1,1,1,2,1,3,5,1,3,1,3,4,6,2,2,14,4,6,6,11,9,1,15,3,1,28,5,2,5,5,3,1,3,4,5,4,6,14,3,2,3,5,21,2,7,20,10,1,2,19,2,4,28,28,2,3, 3347 2,1,14,4,1,26,28,42,12,40,3,52,79,5,14,17,3,2,2,11,3,4,6,3,1,8,2,23,4,5,8,10,4,2,7,3,5,1,1,6,3,1,2,2,2,5,28,1,1,7,7,20,5,3,29,3,17,26,1,8,4, 3348 27,3,6,11,23,5,3,4,6,13,24,16,6,5,10,25,35,7,3,2,3,3,14,3,6,2,6,1,4,2,3,8,2,1,1,3,3,3,4,1,1,13,2,2,4,5,2,1,14,14,1,2,2,1,4,5,2,3,1,14,3,12, 3349 3,17,2,16,5,1,2,1,8,9,3,19,4,2,2,4,17,25,21,20,28,75,1,10,29,103,4,1,2,1,1,4,2,4,1,2,3,24,2,2,2,1,1,2,1,3,8,1,1,1,2,1,1,3,1,1,1,6,1,5,3,1,1, 3350 1,3,4,1,1,5,2,1,5,6,13,9,16,1,1,1,1,3,2,3,2,4,5,2,5,2,2,3,7,13,7,2,2,1,1,1,1,2,3,3,2,1,6,4,9,2,1,14,2,14,2,1,18,3,4,14,4,11,41,15,23,15,23, 3351 176,1,3,4,1,1,1,1,5,3,1,2,3,7,3,1,1,2,1,2,4,4,6,2,4,1,9,7,1,10,5,8,16,29,1,1,2,2,3,1,3,5,2,4,5,4,1,1,2,2,3,3,7,1,6,10,1,17,1,44,4,6,2,1,1,6, 3352 5,4,2,10,1,6,9,2,8,1,24,1,2,13,7,8,8,2,1,4,1,3,1,3,3,5,2,5,10,9,4,9,12,2,1,6,1,10,1,1,7,7,4,10,8,3,1,13,4,3,1,6,1,3,5,2,1,2,17,16,5,2,16,6, 3353 1,4,2,1,3,3,6,8,5,11,11,1,3,3,2,4,6,10,9,5,7,4,7,4,7,1,1,4,2,1,3,6,8,7,1,6,11,5,5,3,24,9,4,2,7,13,5,1,8,82,16,61,1,1,1,4,2,2,16,10,3,8,1,1, 3354 6,4,2,1,3,1,1,1,4,3,8,4,2,2,1,1,1,1,1,6,3,5,1,1,4,6,9,2,1,1,1,2,1,7,2,1,6,1,5,4,4,3,1,8,1,3,3,1,3,2,2,2,2,3,1,6,1,2,1,2,1,3,7,1,8,2,1,2,1,5, 3355 2,5,3,5,10,1,2,1,1,3,2,5,11,3,9,3,5,1,1,5,9,1,2,1,5,7,9,9,8,1,3,3,3,6,8,2,3,2,1,1,32,6,1,2,15,9,3,7,13,1,3,10,13,2,14,1,13,10,2,1,3,10,4,15, 3356 2,15,15,10,1,3,9,6,9,32,25,26,47,7,3,2,3,1,6,3,4,3,2,8,5,4,1,9,4,2,2,19,10,6,2,3,8,1,2,2,4,2,1,9,4,4,4,6,4,8,9,2,3,1,1,1,1,3,5,5,1,3,8,4,6, 3357 2,1,4,12,1,5,3,7,13,2,5,8,1,6,1,2,5,14,6,1,5,2,4,8,15,5,1,23,6,62,2,10,1,1,8,1,2,2,10,4,2,2,9,2,1,1,3,2,3,1,5,3,3,2,1,3,8,1,1,1,11,3,1,1,4, 3358 3,7,1,14,1,2,3,12,5,2,5,1,6,7,5,7,14,11,1,3,1,8,9,12,2,1,11,8,4,4,2,6,10,9,13,1,1,3,1,5,1,3,2,4,4,1,18,2,3,14,11,4,29,4,2,7,1,3,13,9,2,2,5, 3359 3,5,20,7,16,8,5,72,34,6,4,22,12,12,28,45,36,9,7,39,9,191,1,1,1,4,11,8,4,9,2,3,22,1,1,1,1,4,17,1,7,7,1,11,31,10,2,4,8,2,3,2,1,4,2,16,4,32,2, 3360 3,19,13,4,9,1,5,2,14,8,1,1,3,6,19,6,5,1,16,6,2,10,8,5,1,2,3,1,5,5,1,11,6,6,1,3,3,2,6,3,8,1,1,4,10,7,5,7,7,5,8,9,2,1,3,4,1,1,3,1,3,3,2,6,16, 3361 1,4,6,3,1,10,6,1,3,15,2,9,2,10,25,13,9,16,6,2,2,10,11,4,3,9,1,2,6,6,5,4,30,40,1,10,7,12,14,33,6,3,6,7,3,1,3,1,11,14,4,9,5,12,11,49,18,51,31, 3362 140,31,2,2,1,5,1,8,1,10,1,4,4,3,24,1,10,1,3,6,6,16,3,4,5,2,1,4,2,57,10,6,22,2,22,3,7,22,6,10,11,36,18,16,33,36,2,5,5,1,1,1,4,10,1,4,13,2,7, 3363 5,2,9,3,4,1,7,43,3,7,3,9,14,7,9,1,11,1,1,3,7,4,18,13,1,14,1,3,6,10,73,2,2,30,6,1,11,18,19,13,22,3,46,42,37,89,7,3,16,34,2,2,3,9,1,7,1,1,1,2, 3364 2,4,10,7,3,10,3,9,5,28,9,2,6,13,7,3,1,3,10,2,7,2,11,3,6,21,54,85,2,1,4,2,2,1,39,3,21,2,2,5,1,1,1,4,1,1,3,4,15,1,3,2,4,4,2,3,8,2,20,1,8,7,13, 3365 4,1,26,6,2,9,34,4,21,52,10,4,4,1,5,12,2,11,1,7,2,30,12,44,2,30,1,1,3,6,16,9,17,39,82,2,2,24,7,1,7,3,16,9,14,44,2,1,2,1,2,3,5,2,4,1,6,7,5,3, 3366 2,6,1,11,5,11,2,1,18,19,8,1,3,24,29,2,1,3,5,2,2,1,13,6,5,1,46,11,3,5,1,1,5,8,2,10,6,12,6,3,7,11,2,4,16,13,2,5,1,1,2,2,5,2,28,5,2,23,10,8,4, 3367 4,22,39,95,38,8,14,9,5,1,13,5,4,3,13,12,11,1,9,1,27,37,2,5,4,4,63,211,95,2,2,2,1,3,5,2,1,1,2,2,1,1,1,3,2,4,1,2,1,1,5,2,2,1,1,2,3,1,3,1,1,1, 3368 3,1,4,2,1,3,6,1,1,3,7,15,5,3,2,5,3,9,11,4,2,22,1,6,3,8,7,1,4,28,4,16,3,3,25,4,4,27,27,1,4,1,2,2,7,1,3,5,2,28,8,2,14,1,8,6,16,25,3,3,3,14,3, 3369 3,1,1,2,1,4,6,3,8,4,1,1,1,2,3,6,10,6,2,3,18,3,2,5,5,4,3,1,5,2,5,4,23,7,6,12,6,4,17,11,9,5,1,1,10,5,12,1,1,11,26,33,7,3,6,1,17,7,1,5,12,1,11, 3370 2,4,1,8,14,17,23,1,2,1,7,8,16,11,9,6,5,2,6,4,16,2,8,14,1,11,8,9,1,1,1,9,25,4,11,19,7,2,15,2,12,8,52,7,5,19,2,16,4,36,8,1,16,8,24,26,4,6,2,9, 3371 5,4,36,3,28,12,25,15,37,27,17,12,59,38,5,32,127,1,2,9,17,14,4,1,2,1,1,8,11,50,4,14,2,19,16,4,17,5,4,5,26,12,45,2,23,45,104,30,12,8,3,10,2,2, 3372 3,3,1,4,20,7,2,9,6,15,2,20,1,3,16,4,11,15,6,134,2,5,59,1,2,2,2,1,9,17,3,26,137,10,211,59,1,2,4,1,4,1,1,1,2,6,2,3,1,1,2,3,2,3,1,3,4,4,2,3,3, 3373 1,4,3,1,7,2,2,3,1,2,1,3,3,3,2,2,3,2,1,3,14,6,1,3,2,9,6,15,27,9,34,145,1,1,2,1,1,1,1,2,1,1,1,1,2,2,2,3,1,2,1,1,1,2,3,5,8,3,5,2,4,1,3,2,2,2,12, 3374 4,1,1,1,10,4,5,1,20,4,16,1,15,9,5,12,2,9,2,5,4,2,26,19,7,1,26,4,30,12,15,42,1,6,8,172,1,1,4,2,1,1,11,2,2,4,2,1,2,1,10,8,1,2,1,4,5,1,2,5,1,8, 3375 4,1,3,4,2,1,6,2,1,3,4,1,2,1,1,1,1,12,5,7,2,4,3,1,1,1,3,3,6,1,2,2,3,3,3,2,1,2,12,14,11,6,6,4,12,2,8,1,7,10,1,35,7,4,13,15,4,3,23,21,28,52,5, 3376 26,5,6,1,7,10,2,7,53,3,2,1,1,1,2,163,532,1,10,11,1,3,3,4,8,2,8,6,2,2,23,22,4,2,2,4,2,1,3,1,3,3,5,9,8,2,1,2,8,1,10,2,12,21,20,15,105,2,3,1,1, 3377 3,2,3,1,1,2,5,1,4,15,11,19,1,1,1,1,5,4,5,1,1,2,5,3,5,12,1,2,5,1,11,1,1,15,9,1,4,5,3,26,8,2,1,3,1,1,15,19,2,12,1,2,5,2,7,2,19,2,20,6,26,7,5, 3378 2,2,7,34,21,13,70,2,128,1,1,2,1,1,2,1,1,3,2,2,2,15,1,4,1,3,4,42,10,6,1,49,85,8,1,2,1,1,4,4,2,3,6,1,5,7,4,3,211,4,1,2,1,2,5,1,2,4,2,2,6,5,6, 3379 10,3,4,48,100,6,2,16,296,5,27,387,2,2,3,7,16,8,5,38,15,39,21,9,10,3,7,59,13,27,21,47,5,21,6 3380 }; 3381 static ImWchar base_ranges[] = // not zero-terminated 3382 { 3383 0x0020, 0x00FF, // Basic Latin + Latin Supplement 3384 0x2000, 0x206F, // General Punctuation 3385 0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana 3386 0x31F0, 0x31FF, // Katakana Phonetic Extensions 3387 0xFF00, 0xFFEF, // Half-width characters 3388 0xFFFD, 0xFFFD // Invalid 3389 }; 3390 static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00) * 2 + 1] = { 0 }; 3391 if (!full_ranges[0]) 3392 { 3393 memcpy(full_ranges, base_ranges, sizeof(base_ranges)); 3394 UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges)); 3395 } 3396 return &full_ranges[0]; 3397 } 3398 3399 const ImWchar* ImFontAtlas::GetGlyphRangesJapanese() 3400 { 3401 // 2999 ideograms code points for Japanese 3402 // - 2136 Joyo (meaning "for regular use" or "for common use") Kanji code points 3403 // - 863 Jinmeiyo (meaning "for personal name") Kanji code points 3404 // - Sourced from official information provided by the government agencies of Japan: 3405 // - List of Joyo Kanji by the Agency for Cultural Affairs 3406 // - https://www.bunka.go.jp/kokugo_nihongo/sisaku/joho/joho/kijun/naikaku/kanji/ 3407 // - List of Jinmeiyo Kanji by the Ministry of Justice 3408 // - http://www.moj.go.jp/MINJI/minji86.html 3409 // - Available under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0). 3410 // - https://creativecommons.org/licenses/by/4.0/legalcode 3411 // - You can generate this code by the script at: 3412 // - https://github.com/vaiorabbit/everyday_use_kanji 3413 // - References: 3414 // - List of Joyo Kanji 3415 // - (Wikipedia) https://en.wikipedia.org/wiki/List_of_j%C5%8Dy%C5%8D_kanji 3416 // - List of Jinmeiyo Kanji 3417 // - (Wikipedia) https://en.wikipedia.org/wiki/Jinmeiy%C5%8D_kanji 3418 // - Missing 1 Joyo Kanji: U+20B9F (Kun'yomi: Shikaru, On'yomi: Shitsu,shichi), see https://github.com/ocornut/imgui/pull/3627 for details. 3419 // You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters. 3420 // (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.) 3421 static const short accumulative_offsets_from_0x4E00[] = 3422 { 3423 0,1,2,4,1,1,1,1,2,1,3,3,2,2,1,5,3,5,7,5,6,1,2,1,7,2,6,3,1,8,1,1,4,1,1,18,2,11,2,6,2,1,2,1,5,1,2,1,3,1,2,1,2,3,3,1,1,2,3,1,1,1,12,7,9,1,4,5,1, 3424 1,2,1,10,1,1,9,2,2,4,5,6,9,3,1,1,1,1,9,3,18,5,2,2,2,2,1,6,3,7,1,1,1,1,2,2,4,2,1,23,2,10,4,3,5,2,4,10,2,4,13,1,6,1,9,3,1,1,6,6,7,6,3,1,2,11,3, 3425 2,2,3,2,15,2,2,5,4,3,6,4,1,2,5,2,12,16,6,13,9,13,2,1,1,7,16,4,7,1,19,1,5,1,2,2,7,7,8,2,6,5,4,9,18,7,4,5,9,13,11,8,15,2,1,1,1,2,1,2,2,1,2,2,8, 3426 2,9,3,3,1,1,4,4,1,1,1,4,9,1,4,3,5,5,2,7,5,3,4,8,2,1,13,2,3,3,1,14,1,1,4,5,1,3,6,1,5,2,1,1,3,3,3,3,1,1,2,7,6,6,7,1,4,7,6,1,1,1,1,1,12,3,3,9,5, 3427 2,6,1,5,6,1,2,3,18,2,4,14,4,1,3,6,1,1,6,3,5,5,3,2,2,2,2,12,3,1,4,2,3,2,3,11,1,7,4,1,2,1,3,17,1,9,1,24,1,1,4,2,2,4,1,2,7,1,1,1,3,1,2,2,4,15,1, 3428 1,2,1,1,2,1,5,2,5,20,2,5,9,1,10,8,7,6,1,1,1,1,1,1,6,2,1,2,8,1,1,1,1,5,1,1,3,1,1,1,1,3,1,1,12,4,1,3,1,1,1,1,1,10,3,1,7,5,13,1,2,3,4,6,1,1,30, 3429 2,9,9,1,15,38,11,3,1,8,24,7,1,9,8,10,2,1,9,31,2,13,6,2,9,4,49,5,2,15,2,1,10,2,1,1,1,2,2,6,15,30,35,3,14,18,8,1,16,10,28,12,19,45,38,1,3,2,3, 3430 13,2,1,7,3,6,5,3,4,3,1,5,7,8,1,5,3,18,5,3,6,1,21,4,24,9,24,40,3,14,3,21,3,2,1,2,4,2,3,1,15,15,6,5,1,1,3,1,5,6,1,9,7,3,3,2,1,4,3,8,21,5,16,4, 3431 5,2,10,11,11,3,6,3,2,9,3,6,13,1,2,1,1,1,1,11,12,6,6,1,4,2,6,5,2,1,1,3,3,6,13,3,1,1,5,1,2,3,3,14,2,1,2,2,2,5,1,9,5,1,1,6,12,3,12,3,4,13,2,14, 3432 2,8,1,17,5,1,16,4,2,2,21,8,9,6,23,20,12,25,19,9,38,8,3,21,40,25,33,13,4,3,1,4,1,2,4,1,2,5,26,2,1,1,2,1,3,6,2,1,1,1,1,1,1,2,3,1,1,1,9,2,3,1,1, 3433 1,3,6,3,2,1,1,6,6,1,8,2,2,2,1,4,1,2,3,2,7,3,2,4,1,2,1,2,2,1,1,1,1,1,3,1,2,5,4,10,9,4,9,1,1,1,1,1,1,5,3,2,1,6,4,9,6,1,10,2,31,17,8,3,7,5,40,1, 3434 7,7,1,6,5,2,10,7,8,4,15,39,25,6,28,47,18,10,7,1,3,1,1,2,1,1,1,3,3,3,1,1,1,3,4,2,1,4,1,3,6,10,7,8,6,2,2,1,3,3,2,5,8,7,9,12,2,15,1,1,4,1,2,1,1, 3435 1,3,2,1,3,3,5,6,2,3,2,10,1,4,2,8,1,1,1,11,6,1,21,4,16,3,1,3,1,4,2,3,6,5,1,3,1,1,3,3,4,6,1,1,10,4,2,7,10,4,7,4,2,9,4,3,1,1,1,4,1,8,3,4,1,3,1, 3436 6,1,4,2,1,4,7,2,1,8,1,4,5,1,1,2,2,4,6,2,7,1,10,1,1,3,4,11,10,8,21,4,6,1,3,5,2,1,2,28,5,5,2,3,13,1,2,3,1,4,2,1,5,20,3,8,11,1,3,3,3,1,8,10,9,2, 3437 10,9,2,3,1,1,2,4,1,8,3,6,1,7,8,6,11,1,4,29,8,4,3,1,2,7,13,1,4,1,6,2,6,12,12,2,20,3,2,3,6,4,8,9,2,7,34,5,1,18,6,1,1,4,4,5,7,9,1,2,2,4,3,4,1,7, 3438 2,2,2,6,2,3,25,5,3,6,1,4,6,7,4,2,1,4,2,13,6,4,4,3,1,5,3,4,4,3,2,1,1,4,1,2,1,1,3,1,11,1,6,3,1,7,3,6,2,8,8,6,9,3,4,11,3,2,10,12,2,5,11,1,6,4,5, 3439 3,1,8,5,4,6,6,3,5,1,1,3,2,1,2,2,6,17,12,1,10,1,6,12,1,6,6,19,9,6,16,1,13,4,4,15,7,17,6,11,9,15,12,6,7,2,1,2,2,15,9,3,21,4,6,49,18,7,3,2,3,1, 3440 6,8,2,2,6,2,9,1,3,6,4,4,1,2,16,2,5,2,1,6,2,3,5,3,1,2,5,1,2,1,9,3,1,8,6,4,8,11,3,1,1,1,1,3,1,13,8,4,1,3,2,2,1,4,1,11,1,5,2,1,5,2,5,8,6,1,1,7, 3441 4,3,8,3,2,7,2,1,5,1,5,2,4,7,6,2,8,5,1,11,4,5,3,6,18,1,2,13,3,3,1,21,1,1,4,1,4,1,1,1,8,1,2,2,7,1,2,4,2,2,9,2,1,1,1,4,3,6,3,12,5,1,1,1,5,6,3,2, 3442 4,8,2,2,4,2,7,1,8,9,5,2,3,2,1,3,2,13,7,14,6,5,1,1,2,1,4,2,23,2,1,1,6,3,1,4,1,15,3,1,7,3,9,14,1,3,1,4,1,1,5,8,1,3,8,3,8,15,11,4,14,4,4,2,5,5, 3443 1,7,1,6,14,7,7,8,5,15,4,8,6,5,6,2,1,13,1,20,15,11,9,2,5,6,2,11,2,6,2,5,1,5,8,4,13,19,25,4,1,1,11,1,34,2,5,9,14,6,2,2,6,1,1,14,1,3,14,13,1,6, 3444 12,21,14,14,6,32,17,8,32,9,28,1,2,4,11,8,3,1,14,2,5,15,1,1,1,1,3,6,4,1,3,4,11,3,1,1,11,30,1,5,1,4,1,5,8,1,1,3,2,4,3,17,35,2,6,12,17,3,1,6,2, 3445 1,1,12,2,7,3,3,2,1,16,2,8,3,6,5,4,7,3,3,8,1,9,8,5,1,2,1,3,2,8,1,2,9,12,1,1,2,3,8,3,24,12,4,3,7,5,8,3,3,3,3,3,3,1,23,10,3,1,2,2,6,3,1,16,1,16, 3446 22,3,10,4,11,6,9,7,7,3,6,2,2,2,4,10,2,1,1,2,8,7,1,6,4,1,3,3,3,5,10,12,12,2,3,12,8,15,1,1,16,6,6,1,5,9,11,4,11,4,2,6,12,1,17,5,13,1,4,9,5,1,11, 3447 2,1,8,1,5,7,28,8,3,5,10,2,17,3,38,22,1,2,18,12,10,4,38,18,1,4,44,19,4,1,8,4,1,12,1,4,31,12,1,14,7,75,7,5,10,6,6,13,3,2,11,11,3,2,5,28,15,6,18, 3448 18,5,6,4,3,16,1,7,18,7,36,3,5,3,1,7,1,9,1,10,7,2,4,2,6,2,9,7,4,3,32,12,3,7,10,2,23,16,3,1,12,3,31,4,11,1,3,8,9,5,1,30,15,6,12,3,2,2,11,19,9, 3449 14,2,6,2,3,19,13,17,5,3,3,25,3,14,1,1,1,36,1,3,2,19,3,13,36,9,13,31,6,4,16,34,2,5,4,2,3,3,5,1,1,1,4,3,1,17,3,2,3,5,3,1,3,2,3,5,6,3,12,11,1,3, 3450 1,2,26,7,12,7,2,14,3,3,7,7,11,25,25,28,16,4,36,1,2,1,6,2,1,9,3,27,17,4,3,4,13,4,1,3,2,2,1,10,4,2,4,6,3,8,2,1,18,1,1,24,2,2,4,33,2,3,63,7,1,6, 3451 40,7,3,4,4,2,4,15,18,1,16,1,1,11,2,41,14,1,3,18,13,3,2,4,16,2,17,7,15,24,7,18,13,44,2,2,3,6,1,1,7,5,1,7,1,4,3,3,5,10,8,2,3,1,8,1,1,27,4,2,1, 3452 12,1,2,1,10,6,1,6,7,5,2,3,7,11,5,11,3,6,6,2,3,15,4,9,1,1,2,1,2,11,2,8,12,8,5,4,2,3,1,5,2,2,1,14,1,12,11,4,1,11,17,17,4,3,2,5,5,7,3,1,5,9,9,8, 3453 2,5,6,6,13,13,2,1,2,6,1,2,2,49,4,9,1,2,10,16,7,8,4,3,2,23,4,58,3,29,1,14,19,19,11,11,2,7,5,1,3,4,6,2,18,5,12,12,17,17,3,3,2,4,1,6,2,3,4,3,1, 3454 1,1,1,5,1,1,9,1,3,1,3,6,1,8,1,1,2,6,4,14,3,1,4,11,4,1,3,32,1,2,4,13,4,1,2,4,2,1,3,1,11,1,4,2,1,4,4,6,3,5,1,6,5,7,6,3,23,3,5,3,5,3,3,13,3,9,10, 3455 1,12,10,2,3,18,13,7,160,52,4,2,2,3,2,14,5,4,12,4,6,4,1,20,4,11,6,2,12,27,1,4,1,2,2,7,4,5,2,28,3,7,25,8,3,19,3,6,10,2,2,1,10,2,5,4,1,3,4,1,5, 3456 3,2,6,9,3,6,2,16,3,3,16,4,5,5,3,2,1,2,16,15,8,2,6,21,2,4,1,22,5,8,1,1,21,11,2,1,11,11,19,13,12,4,2,3,2,3,6,1,8,11,1,4,2,9,5,2,1,11,2,9,1,1,2, 3457 14,31,9,3,4,21,14,4,8,1,7,2,2,2,5,1,4,20,3,3,4,10,1,11,9,8,2,1,4,5,14,12,14,2,17,9,6,31,4,14,1,20,13,26,5,2,7,3,6,13,2,4,2,19,6,2,2,18,9,3,5, 3458 12,12,14,4,6,2,3,6,9,5,22,4,5,25,6,4,8,5,2,6,27,2,35,2,16,3,7,8,8,6,6,5,9,17,2,20,6,19,2,13,3,1,1,1,4,17,12,2,14,7,1,4,18,12,38,33,2,10,1,1, 3459 2,13,14,17,11,50,6,33,20,26,74,16,23,45,50,13,38,33,6,6,7,4,4,2,1,3,2,5,8,7,8,9,3,11,21,9,13,1,3,10,6,7,1,2,2,18,5,5,1,9,9,2,68,9,19,13,2,5, 3460 1,4,4,7,4,13,3,9,10,21,17,3,26,2,1,5,2,4,5,4,1,7,4,7,3,4,2,1,6,1,1,20,4,1,9,2,2,1,3,3,2,3,2,1,1,1,20,2,3,1,6,2,3,6,2,4,8,1,3,2,10,3,5,3,4,4, 3461 3,4,16,1,6,1,10,2,4,2,1,1,2,10,11,2,2,3,1,24,31,4,10,10,2,5,12,16,164,15,4,16,7,9,15,19,17,1,2,1,1,5,1,1,1,1,1,3,1,4,3,1,3,1,3,1,2,1,1,3,3,7, 3462 2,8,1,2,2,2,1,3,4,3,7,8,12,92,2,10,3,1,3,14,5,25,16,42,4,7,7,4,2,21,5,27,26,27,21,25,30,31,2,1,5,13,3,22,5,6,6,11,9,12,1,5,9,7,5,5,22,60,3,5, 3463 13,1,1,8,1,1,3,3,2,1,9,3,3,18,4,1,2,3,7,6,3,1,2,3,9,1,3,1,3,2,1,3,1,1,1,2,1,11,3,1,6,9,1,3,2,3,1,2,1,5,1,1,4,3,4,1,2,2,4,4,1,7,2,1,2,2,3,5,13, 3464 18,3,4,14,9,9,4,16,3,7,5,8,2,6,48,28,3,1,1,4,2,14,8,2,9,2,1,15,2,4,3,2,10,16,12,8,7,1,1,3,1,1,1,2,7,4,1,6,4,38,39,16,23,7,15,15,3,2,12,7,21, 3465 37,27,6,5,4,8,2,10,8,8,6,5,1,2,1,3,24,1,16,17,9,23,10,17,6,1,51,55,44,13,294,9,3,6,2,4,2,2,15,1,1,1,13,21,17,68,14,8,9,4,1,4,9,3,11,7,1,1,1, 3466 5,6,3,2,1,1,1,2,3,8,1,2,2,4,1,5,5,2,1,4,3,7,13,4,1,4,1,3,1,1,1,5,5,10,1,6,1,5,2,1,5,2,4,1,4,5,7,3,18,2,9,11,32,4,3,3,2,4,7,11,16,9,11,8,13,38, 3467 32,8,4,2,1,1,2,1,2,4,4,1,1,1,4,1,21,3,11,1,16,1,1,6,1,3,2,4,9,8,57,7,44,1,3,3,13,3,10,1,1,7,5,2,7,21,47,63,3,15,4,7,1,16,1,1,2,8,2,3,42,15,4, 3468 1,29,7,22,10,3,78,16,12,20,18,4,67,11,5,1,3,15,6,21,31,32,27,18,13,71,35,5,142,4,10,1,2,50,19,33,16,35,37,16,19,27,7,1,133,19,1,4,8,7,20,1,4, 3469 4,1,10,3,1,6,1,2,51,5,40,15,24,43,22928,11,1,13,154,70,3,1,1,7,4,10,1,2,1,1,2,1,2,1,2,2,1,1,2,1,1,1,1,1,2,1,1,1,1,1,1,1,1,1,1,1,1,1,2,1,1,1, 3470 3,2,1,1,1,1,2,1,1, 3471 }; 3472 static ImWchar base_ranges[] = // not zero-terminated 3473 { 3474 0x0020, 0x00FF, // Basic Latin + Latin Supplement 3475 0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana 3476 0x31F0, 0x31FF, // Katakana Phonetic Extensions 3477 0xFF00, 0xFFEF, // Half-width characters 3478 0xFFFD, 0xFFFD // Invalid 3479 }; 3480 static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00)*2 + 1] = { 0 }; 3481 if (!full_ranges[0]) 3482 { 3483 memcpy(full_ranges, base_ranges, sizeof(base_ranges)); 3484 UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges)); 3485 } 3486 return &full_ranges[0]; 3487 } 3488 3489 const ImWchar* ImFontAtlas::GetGlyphRangesCyrillic() 3490 { 3491 static const ImWchar ranges[] = 3492 { 3493 0x0020, 0x00FF, // Basic Latin + Latin Supplement 3494 0x0400, 0x052F, // Cyrillic + Cyrillic Supplement 3495 0x2DE0, 0x2DFF, // Cyrillic Extended-A 3496 0xA640, 0xA69F, // Cyrillic Extended-B 3497 0, 3498 }; 3499 return &ranges[0]; 3500 } 3501 3502 const ImWchar* ImFontAtlas::GetGlyphRangesThai() 3503 { 3504 static const ImWchar ranges[] = 3505 { 3506 0x0020, 0x00FF, // Basic Latin 3507 0x2010, 0x205E, // Punctuations 3508 0x0E00, 0x0E7F, // Thai 3509 0, 3510 }; 3511 return &ranges[0]; 3512 } 3513 3514 const ImWchar* ImFontAtlas::GetGlyphRangesVietnamese() 3515 { 3516 static const ImWchar ranges[] = 3517 { 3518 0x0020, 0x00FF, // Basic Latin 3519 0x0102, 0x0103, 3520 0x0110, 0x0111, 3521 0x0128, 0x0129, 3522 0x0168, 0x0169, 3523 0x01A0, 0x01A1, 3524 0x01AF, 0x01B0, 3525 0x1EA0, 0x1EF9, 3526 0, 3527 }; 3528 return &ranges[0]; 3529 } 3530 3531 //----------------------------------------------------------------------------- 3532 // [SECTION] ImFontGlyphRangesBuilder 3533 //----------------------------------------------------------------------------- 3534 3535 void ImFontGlyphRangesBuilder::AddText(const char* text, const char* text_end) 3536 { 3537 while (text_end ? (text < text_end) : *text) 3538 { 3539 unsigned int c = 0; 3540 int c_len = ImTextCharFromUtf8(&c, text, text_end); 3541 text += c_len; 3542 if (c_len == 0) 3543 break; 3544 AddChar((ImWchar)c); 3545 } 3546 } 3547 3548 void ImFontGlyphRangesBuilder::AddRanges(const ImWchar* ranges) 3549 { 3550 for (; ranges[0]; ranges += 2) 3551 for (unsigned int c = ranges[0]; c <= ranges[1] && c <= IM_UNICODE_CODEPOINT_MAX; c++) //-V560 3552 AddChar((ImWchar)c); 3553 } 3554 3555 void ImFontGlyphRangesBuilder::BuildRanges(ImVector<ImWchar>* out_ranges) 3556 { 3557 const int max_codepoint = IM_UNICODE_CODEPOINT_MAX; 3558 for (int n = 0; n <= max_codepoint; n++) 3559 if (GetBit(n)) 3560 { 3561 out_ranges->push_back((ImWchar)n); 3562 while (n < max_codepoint && GetBit(n + 1)) 3563 n++; 3564 out_ranges->push_back((ImWchar)n); 3565 } 3566 out_ranges->push_back(0); 3567 } 3568 3569 //----------------------------------------------------------------------------- 3570 // [SECTION] ImFont 3571 //----------------------------------------------------------------------------- 3572 3573 ImFont::ImFont() 3574 { 3575 FontSize = 0.0f; 3576 FallbackAdvanceX = 0.0f; 3577 FallbackChar = (ImWchar)-1; 3578 EllipsisChar = (ImWchar)-1; 3579 EllipsisWidth = EllipsisCharStep = 0.0f; 3580 EllipsisCharCount = 0; 3581 FallbackGlyph = NULL; 3582 ContainerAtlas = NULL; 3583 ConfigData = NULL; 3584 ConfigDataCount = 0; 3585 DirtyLookupTables = false; 3586 Scale = 1.0f; 3587 Ascent = Descent = 0.0f; 3588 MetricsTotalSurface = 0; 3589 memset(Used4kPagesMap, 0, sizeof(Used4kPagesMap)); 3590 } 3591 3592 ImFont::~ImFont() 3593 { 3594 ClearOutputData(); 3595 } 3596 3597 void ImFont::ClearOutputData() 3598 { 3599 FontSize = 0.0f; 3600 FallbackAdvanceX = 0.0f; 3601 Glyphs.clear(); 3602 IndexAdvanceX.clear(); 3603 IndexLookup.clear(); 3604 FallbackGlyph = NULL; 3605 ContainerAtlas = NULL; 3606 DirtyLookupTables = true; 3607 Ascent = Descent = 0.0f; 3608 MetricsTotalSurface = 0; 3609 } 3610 3611 static ImWchar FindFirstExistingGlyph(ImFont* font, const ImWchar* candidate_chars, int candidate_chars_count) 3612 { 3613 for (int n = 0; n < candidate_chars_count; n++) 3614 if (font->FindGlyphNoFallback(candidate_chars[n]) != NULL) 3615 return candidate_chars[n]; 3616 return (ImWchar)-1; 3617 } 3618 3619 void ImFont::BuildLookupTable() 3620 { 3621 int max_codepoint = 0; 3622 for (int i = 0; i != Glyphs.Size; i++) 3623 max_codepoint = ImMax(max_codepoint, (int)Glyphs[i].Codepoint); 3624 3625 // Build lookup table 3626 IM_ASSERT(Glyphs.Size > 0 && "Font has not loaded glyph!"); 3627 IM_ASSERT(Glyphs.Size < 0xFFFF); // -1 is reserved 3628 IndexAdvanceX.clear(); 3629 IndexLookup.clear(); 3630 DirtyLookupTables = false; 3631 memset(Used4kPagesMap, 0, sizeof(Used4kPagesMap)); 3632 GrowIndex(max_codepoint + 1); 3633 for (int i = 0; i < Glyphs.Size; i++) 3634 { 3635 int codepoint = (int)Glyphs[i].Codepoint; 3636 IndexAdvanceX[codepoint] = Glyphs[i].AdvanceX; 3637 IndexLookup[codepoint] = (ImWchar)i; 3638 3639 // Mark 4K page as used 3640 const int page_n = codepoint / 4096; 3641 Used4kPagesMap[page_n >> 3] |= 1 << (page_n & 7); 3642 } 3643 3644 // Create a glyph to handle TAB 3645 // FIXME: Needs proper TAB handling but it needs to be contextualized (or we could arbitrary say that each string starts at "column 0" ?) 3646 if (FindGlyph((ImWchar)' ')) 3647 { 3648 if (Glyphs.back().Codepoint != '\t') // So we can call this function multiple times (FIXME: Flaky) 3649 Glyphs.resize(Glyphs.Size + 1); 3650 ImFontGlyph& tab_glyph = Glyphs.back(); 3651 tab_glyph = *FindGlyph((ImWchar)' '); 3652 tab_glyph.Codepoint = '\t'; 3653 tab_glyph.AdvanceX *= IM_TABSIZE; 3654 IndexAdvanceX[(int)tab_glyph.Codepoint] = (float)tab_glyph.AdvanceX; 3655 IndexLookup[(int)tab_glyph.Codepoint] = (ImWchar)(Glyphs.Size - 1); 3656 } 3657 3658 // Mark special glyphs as not visible (note that AddGlyph already mark as non-visible glyphs with zero-size polygons) 3659 SetGlyphVisible((ImWchar)' ', false); 3660 SetGlyphVisible((ImWchar)'\t', false); 3661 3662 // Setup Fallback character 3663 const ImWchar fallback_chars[] = { (ImWchar)IM_UNICODE_CODEPOINT_INVALID, (ImWchar)'?', (ImWchar)' ' }; 3664 FallbackGlyph = FindGlyphNoFallback(FallbackChar); 3665 if (FallbackGlyph == NULL) 3666 { 3667 FallbackChar = FindFirstExistingGlyph(this, fallback_chars, IM_ARRAYSIZE(fallback_chars)); 3668 FallbackGlyph = FindGlyphNoFallback(FallbackChar); 3669 if (FallbackGlyph == NULL) 3670 { 3671 FallbackGlyph = &Glyphs.back(); 3672 FallbackChar = (ImWchar)FallbackGlyph->Codepoint; 3673 } 3674 } 3675 FallbackAdvanceX = FallbackGlyph->AdvanceX; 3676 for (int i = 0; i < max_codepoint + 1; i++) 3677 if (IndexAdvanceX[i] < 0.0f) 3678 IndexAdvanceX[i] = FallbackAdvanceX; 3679 3680 // Setup Ellipsis character. It is required for rendering elided text. We prefer using U+2026 (horizontal ellipsis). 3681 // However some old fonts may contain ellipsis at U+0085. Here we auto-detect most suitable ellipsis character. 3682 // FIXME: Note that 0x2026 is rarely included in our font ranges. Because of this we are more likely to use three individual dots. 3683 const ImWchar ellipsis_chars[] = { (ImWchar)0x2026, (ImWchar)0x0085 }; 3684 const ImWchar dots_chars[] = { (ImWchar)'.', (ImWchar)0xFF0E }; 3685 if (EllipsisChar == (ImWchar)-1) 3686 EllipsisChar = FindFirstExistingGlyph(this, ellipsis_chars, IM_ARRAYSIZE(ellipsis_chars)); 3687 const ImWchar dot_char = FindFirstExistingGlyph(this, dots_chars, IM_ARRAYSIZE(dots_chars)); 3688 if (EllipsisChar != (ImWchar)-1) 3689 { 3690 EllipsisCharCount = 1; 3691 EllipsisWidth = EllipsisCharStep = FindGlyph(EllipsisChar)->X1; 3692 } 3693 else if (dot_char != (ImWchar)-1) 3694 { 3695 const ImFontGlyph* glyph = FindGlyph(dot_char); 3696 EllipsisChar = dot_char; 3697 EllipsisCharCount = 3; 3698 EllipsisCharStep = (glyph->X1 - glyph->X0) + 1.0f; 3699 EllipsisWidth = EllipsisCharStep * 3.0f - 1.0f; 3700 } 3701 } 3702 3703 // API is designed this way to avoid exposing the 4K page size 3704 // e.g. use with IsGlyphRangeUnused(0, 255) 3705 bool ImFont::IsGlyphRangeUnused(unsigned int c_begin, unsigned int c_last) 3706 { 3707 unsigned int page_begin = (c_begin / 4096); 3708 unsigned int page_last = (c_last / 4096); 3709 for (unsigned int page_n = page_begin; page_n <= page_last; page_n++) 3710 if ((page_n >> 3) < sizeof(Used4kPagesMap)) 3711 if (Used4kPagesMap[page_n >> 3] & (1 << (page_n & 7))) 3712 return false; 3713 return true; 3714 } 3715 3716 void ImFont::SetGlyphVisible(ImWchar c, bool visible) 3717 { 3718 if (ImFontGlyph* glyph = (ImFontGlyph*)(void*)FindGlyph((ImWchar)c)) 3719 glyph->Visible = visible ? 1 : 0; 3720 } 3721 3722 void ImFont::GrowIndex(int new_size) 3723 { 3724 IM_ASSERT(IndexAdvanceX.Size == IndexLookup.Size); 3725 if (new_size <= IndexLookup.Size) 3726 return; 3727 IndexAdvanceX.resize(new_size, -1.0f); 3728 IndexLookup.resize(new_size, (ImWchar)-1); 3729 } 3730 3731 // x0/y0/x1/y1 are offset from the character upper-left layout position, in pixels. Therefore x0/y0 are often fairly close to zero. 3732 // Not to be mistaken with texture coordinates, which are held by u0/v0/u1/v1 in normalized format (0.0..1.0 on each texture axis). 3733 // 'cfg' is not necessarily == 'this->ConfigData' because multiple source fonts+configs can be used to build one target font. 3734 void ImFont::AddGlyph(const ImFontConfig* cfg, ImWchar codepoint, float x0, float y0, float x1, float y1, float u0, float v0, float u1, float v1, float advance_x) 3735 { 3736 if (cfg != NULL) 3737 { 3738 // Clamp & recenter if needed 3739 const float advance_x_original = advance_x; 3740 advance_x = ImClamp(advance_x, cfg->GlyphMinAdvanceX, cfg->GlyphMaxAdvanceX); 3741 if (advance_x != advance_x_original) 3742 { 3743 float char_off_x = cfg->PixelSnapH ? ImTrunc((advance_x - advance_x_original) * 0.5f) : (advance_x - advance_x_original) * 0.5f; 3744 x0 += char_off_x; 3745 x1 += char_off_x; 3746 } 3747 3748 // Snap to pixel 3749 if (cfg->PixelSnapH) 3750 advance_x = IM_ROUND(advance_x); 3751 3752 // Bake spacing 3753 advance_x += cfg->GlyphExtraSpacing.x; 3754 } 3755 3756 Glyphs.resize(Glyphs.Size + 1); 3757 ImFontGlyph& glyph = Glyphs.back(); 3758 glyph.Codepoint = (unsigned int)codepoint; 3759 glyph.Visible = (x0 != x1) && (y0 != y1); 3760 glyph.Colored = false; 3761 glyph.X0 = x0; 3762 glyph.Y0 = y0; 3763 glyph.X1 = x1; 3764 glyph.Y1 = y1; 3765 glyph.U0 = u0; 3766 glyph.V0 = v0; 3767 glyph.U1 = u1; 3768 glyph.V1 = v1; 3769 glyph.AdvanceX = advance_x; 3770 3771 // Compute rough surface usage metrics (+1 to account for average padding, +0.99 to round) 3772 // We use (U1-U0)*TexWidth instead of X1-X0 to account for oversampling. 3773 float pad = ContainerAtlas->TexGlyphPadding + 0.99f; 3774 DirtyLookupTables = true; 3775 MetricsTotalSurface += (int)((glyph.U1 - glyph.U0) * ContainerAtlas->TexWidth + pad) * (int)((glyph.V1 - glyph.V0) * ContainerAtlas->TexHeight + pad); 3776 } 3777 3778 void ImFont::AddRemapChar(ImWchar dst, ImWchar src, bool overwrite_dst) 3779 { 3780 IM_ASSERT(IndexLookup.Size > 0); // Currently this can only be called AFTER the font has been built, aka after calling ImFontAtlas::GetTexDataAs*() function. 3781 unsigned int index_size = (unsigned int)IndexLookup.Size; 3782 3783 if (dst < index_size && IndexLookup.Data[dst] == (ImWchar)-1 && !overwrite_dst) // 'dst' already exists 3784 return; 3785 if (src >= index_size && dst >= index_size) // both 'dst' and 'src' don't exist -> no-op 3786 return; 3787 3788 GrowIndex(dst + 1); 3789 IndexLookup[dst] = (src < index_size) ? IndexLookup.Data[src] : (ImWchar)-1; 3790 IndexAdvanceX[dst] = (src < index_size) ? IndexAdvanceX.Data[src] : 1.0f; 3791 } 3792 3793 const ImFontGlyph* ImFont::FindGlyph(ImWchar c) const 3794 { 3795 if (c >= (size_t)IndexLookup.Size) 3796 return FallbackGlyph; 3797 const ImWchar i = IndexLookup.Data[c]; 3798 if (i == (ImWchar)-1) 3799 return FallbackGlyph; 3800 return &Glyphs.Data[i]; 3801 } 3802 3803 const ImFontGlyph* ImFont::FindGlyphNoFallback(ImWchar c) const 3804 { 3805 if (c >= (size_t)IndexLookup.Size) 3806 return NULL; 3807 const ImWchar i = IndexLookup.Data[c]; 3808 if (i == (ImWchar)-1) 3809 return NULL; 3810 return &Glyphs.Data[i]; 3811 } 3812 3813 // Wrapping skips upcoming blanks 3814 static inline const char* CalcWordWrapNextLineStartA(const char* text, const char* text_end) 3815 { 3816 while (text < text_end && ImCharIsBlankA(*text)) 3817 text++; 3818 if (*text == '\n') 3819 text++; 3820 return text; 3821 } 3822 3823 // Simple word-wrapping for English, not full-featured. Please submit failing cases! 3824 // This will return the next location to wrap from. If no wrapping if necessary, this will fast-forward to e.g. text_end. 3825 // FIXME: Much possible improvements (don't cut things like "word !", "word!!!" but cut within "word,,,,", more sensible support for punctuations, support for Unicode punctuations, etc.) 3826 const char* ImFont::CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width) const 3827 { 3828 // For references, possible wrap point marked with ^ 3829 // "aaa bbb, ccc,ddd. eee fff. ggg!" 3830 // ^ ^ ^ ^ ^__ ^ ^ 3831 3832 // List of hardcoded separators: .,;!?'" 3833 3834 // Skip extra blanks after a line returns (that includes not counting them in width computation) 3835 // e.g. "Hello world" --> "Hello" "World" 3836 3837 // Cut words that cannot possibly fit within one line. 3838 // e.g.: "The tropical fish" with ~5 characters worth of width --> "The tr" "opical" "fish" 3839 float line_width = 0.0f; 3840 float word_width = 0.0f; 3841 float blank_width = 0.0f; 3842 wrap_width /= scale; // We work with unscaled widths to avoid scaling every characters 3843 3844 const char* word_end = text; 3845 const char* prev_word_end = NULL; 3846 bool inside_word = true; 3847 3848 const char* s = text; 3849 IM_ASSERT(text_end != NULL); 3850 while (s < text_end) 3851 { 3852 unsigned int c = (unsigned int)*s; 3853 const char* next_s; 3854 if (c < 0x80) 3855 next_s = s + 1; 3856 else 3857 next_s = s + ImTextCharFromUtf8(&c, s, text_end); 3858 3859 if (c < 32) 3860 { 3861 if (c == '\n') 3862 { 3863 line_width = word_width = blank_width = 0.0f; 3864 inside_word = true; 3865 s = next_s; 3866 continue; 3867 } 3868 if (c == '\r') 3869 { 3870 s = next_s; 3871 continue; 3872 } 3873 } 3874 3875 const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX.Data[c] : FallbackAdvanceX); 3876 if (ImCharIsBlankW(c)) 3877 { 3878 if (inside_word) 3879 { 3880 line_width += blank_width; 3881 blank_width = 0.0f; 3882 word_end = s; 3883 } 3884 blank_width += char_width; 3885 inside_word = false; 3886 } 3887 else 3888 { 3889 word_width += char_width; 3890 if (inside_word) 3891 { 3892 word_end = next_s; 3893 } 3894 else 3895 { 3896 prev_word_end = word_end; 3897 line_width += word_width + blank_width; 3898 word_width = blank_width = 0.0f; 3899 } 3900 3901 // Allow wrapping after punctuation. 3902 inside_word = (c != '.' && c != ',' && c != ';' && c != '!' && c != '?' && c != '\"'); 3903 } 3904 3905 // We ignore blank width at the end of the line (they can be skipped) 3906 if (line_width + word_width > wrap_width) 3907 { 3908 // Words that cannot possibly fit within an entire line will be cut anywhere. 3909 if (word_width < wrap_width) 3910 s = prev_word_end ? prev_word_end : word_end; 3911 break; 3912 } 3913 3914 s = next_s; 3915 } 3916 3917 // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity. 3918 // +1 may not be a character start point in UTF-8 but it's ok because caller loops use (text >= word_wrap_eol). 3919 if (s == text && text < text_end) 3920 return s + 1; 3921 return s; 3922 } 3923 3924 ImVec2 ImFont::CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end, const char** remaining) const 3925 { 3926 if (!text_end) 3927 text_end = text_begin + strlen(text_begin); // FIXME-OPT: Need to avoid this. 3928 3929 const float line_height = size; 3930 const float scale = size / FontSize; 3931 3932 ImVec2 text_size = ImVec2(0, 0); 3933 float line_width = 0.0f; 3934 3935 const bool word_wrap_enabled = (wrap_width > 0.0f); 3936 const char* word_wrap_eol = NULL; 3937 3938 const char* s = text_begin; 3939 while (s < text_end) 3940 { 3941 if (word_wrap_enabled) 3942 { 3943 // Calculate how far we can render. Requires two passes on the string data but keeps the code simple and not intrusive for what's essentially an uncommon feature. 3944 if (!word_wrap_eol) 3945 word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - line_width); 3946 3947 if (s >= word_wrap_eol) 3948 { 3949 if (text_size.x < line_width) 3950 text_size.x = line_width; 3951 text_size.y += line_height; 3952 line_width = 0.0f; 3953 word_wrap_eol = NULL; 3954 s = CalcWordWrapNextLineStartA(s, text_end); // Wrapping skips upcoming blanks 3955 continue; 3956 } 3957 } 3958 3959 // Decode and advance source 3960 const char* prev_s = s; 3961 unsigned int c = (unsigned int)*s; 3962 if (c < 0x80) 3963 s += 1; 3964 else 3965 s += ImTextCharFromUtf8(&c, s, text_end); 3966 3967 if (c < 32) 3968 { 3969 if (c == '\n') 3970 { 3971 text_size.x = ImMax(text_size.x, line_width); 3972 text_size.y += line_height; 3973 line_width = 0.0f; 3974 continue; 3975 } 3976 if (c == '\r') 3977 continue; 3978 } 3979 3980 const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX.Data[c] : FallbackAdvanceX) * scale; 3981 if (line_width + char_width >= max_width) 3982 { 3983 s = prev_s; 3984 break; 3985 } 3986 3987 line_width += char_width; 3988 } 3989 3990 if (text_size.x < line_width) 3991 text_size.x = line_width; 3992 3993 if (line_width > 0 || text_size.y == 0.0f) 3994 text_size.y += line_height; 3995 3996 if (remaining) 3997 *remaining = s; 3998 3999 return text_size; 4000 } 4001 4002 // Note: as with every ImDrawList drawing function, this expects that the font atlas texture is bound. 4003 void ImFont::RenderChar(ImDrawList* draw_list, float size, const ImVec2& pos, ImU32 col, ImWchar c) const 4004 { 4005 const ImFontGlyph* glyph = FindGlyph(c); 4006 if (!glyph || !glyph->Visible) 4007 return; 4008 if (glyph->Colored) 4009 col |= ~IM_COL32_A_MASK; 4010 float scale = (size >= 0.0f) ? (size / FontSize) : 1.0f; 4011 float x = IM_TRUNC(pos.x); 4012 float y = IM_TRUNC(pos.y); 4013 draw_list->PrimReserve(6, 4); 4014 draw_list->PrimRectUV(ImVec2(x + glyph->X0 * scale, y + glyph->Y0 * scale), ImVec2(x + glyph->X1 * scale, y + glyph->Y1 * scale), ImVec2(glyph->U0, glyph->V0), ImVec2(glyph->U1, glyph->V1), col); 4015 } 4016 4017 // Note: as with every ImDrawList drawing function, this expects that the font atlas texture is bound. 4018 void ImFont::RenderText(ImDrawList* draw_list, float size, const ImVec2& pos, ImU32 col, const ImVec4& clip_rect, const char* text_begin, const char* text_end, float wrap_width, bool cpu_fine_clip) const 4019 { 4020 if (!text_end) 4021 text_end = text_begin + strlen(text_begin); // ImGui:: functions generally already provides a valid text_end, so this is merely to handle direct calls. 4022 4023 // Align to be pixel perfect 4024 float x = IM_TRUNC(pos.x); 4025 float y = IM_TRUNC(pos.y); 4026 if (y > clip_rect.w) 4027 return; 4028 4029 const float start_x = x; 4030 const float scale = size / FontSize; 4031 const float line_height = FontSize * scale; 4032 const bool word_wrap_enabled = (wrap_width > 0.0f); 4033 4034 // Fast-forward to first visible line 4035 const char* s = text_begin; 4036 if (y + line_height < clip_rect.y) 4037 while (y + line_height < clip_rect.y && s < text_end) 4038 { 4039 const char* line_end = (const char*)memchr(s, '\n', text_end - s); 4040 if (word_wrap_enabled) 4041 { 4042 // FIXME-OPT: This is not optimal as do first do a search for \n before calling CalcWordWrapPositionA(). 4043 // If the specs for CalcWordWrapPositionA() were reworked to optionally return on \n we could combine both. 4044 // However it is still better than nothing performing the fast-forward! 4045 s = CalcWordWrapPositionA(scale, s, line_end ? line_end : text_end, wrap_width); 4046 s = CalcWordWrapNextLineStartA(s, text_end); 4047 } 4048 else 4049 { 4050 s = line_end ? line_end + 1 : text_end; 4051 } 4052 y += line_height; 4053 } 4054 4055 // For large text, scan for the last visible line in order to avoid over-reserving in the call to PrimReserve() 4056 // Note that very large horizontal line will still be affected by the issue (e.g. a one megabyte string buffer without a newline will likely crash atm) 4057 if (text_end - s > 10000 && !word_wrap_enabled) 4058 { 4059 const char* s_end = s; 4060 float y_end = y; 4061 while (y_end < clip_rect.w && s_end < text_end) 4062 { 4063 s_end = (const char*)memchr(s_end, '\n', text_end - s_end); 4064 s_end = s_end ? s_end + 1 : text_end; 4065 y_end += line_height; 4066 } 4067 text_end = s_end; 4068 } 4069 if (s == text_end) 4070 return; 4071 4072 // Reserve vertices for remaining worse case (over-reserving is useful and easily amortized) 4073 const int vtx_count_max = (int)(text_end - s) * 4; 4074 const int idx_count_max = (int)(text_end - s) * 6; 4075 const int idx_expected_size = draw_list->IdxBuffer.Size + idx_count_max; 4076 draw_list->PrimReserve(idx_count_max, vtx_count_max); 4077 ImDrawVert* vtx_write = draw_list->_VtxWritePtr; 4078 ImDrawIdx* idx_write = draw_list->_IdxWritePtr; 4079 unsigned int vtx_index = draw_list->_VtxCurrentIdx; 4080 4081 const ImU32 col_untinted = col | ~IM_COL32_A_MASK; 4082 const char* word_wrap_eol = NULL; 4083 4084 while (s < text_end) 4085 { 4086 if (word_wrap_enabled) 4087 { 4088 // Calculate how far we can render. Requires two passes on the string data but keeps the code simple and not intrusive for what's essentially an uncommon feature. 4089 if (!word_wrap_eol) 4090 word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - (x - start_x)); 4091 4092 if (s >= word_wrap_eol) 4093 { 4094 x = start_x; 4095 y += line_height; 4096 if (y > clip_rect.w) 4097 break; // break out of main loop 4098 word_wrap_eol = NULL; 4099 s = CalcWordWrapNextLineStartA(s, text_end); // Wrapping skips upcoming blanks 4100 continue; 4101 } 4102 } 4103 4104 // Decode and advance source 4105 unsigned int c = (unsigned int)*s; 4106 if (c < 0x80) 4107 s += 1; 4108 else 4109 s += ImTextCharFromUtf8(&c, s, text_end); 4110 4111 if (c < 32) 4112 { 4113 if (c == '\n') 4114 { 4115 x = start_x; 4116 y += line_height; 4117 if (y > clip_rect.w) 4118 break; // break out of main loop 4119 continue; 4120 } 4121 if (c == '\r') 4122 continue; 4123 } 4124 4125 const ImFontGlyph* glyph = FindGlyph((ImWchar)c); 4126 if (glyph == NULL) 4127 continue; 4128 4129 float char_width = glyph->AdvanceX * scale; 4130 if (glyph->Visible) 4131 { 4132 // We don't do a second finer clipping test on the Y axis as we've already skipped anything before clip_rect.y and exit once we pass clip_rect.w 4133 float x1 = x + glyph->X0 * scale; 4134 float x2 = x + glyph->X1 * scale; 4135 float y1 = y + glyph->Y0 * scale; 4136 float y2 = y + glyph->Y1 * scale; 4137 if (x1 <= clip_rect.z && x2 >= clip_rect.x) 4138 { 4139 // Render a character 4140 float u1 = glyph->U0; 4141 float v1 = glyph->V0; 4142 float u2 = glyph->U1; 4143 float v2 = glyph->V1; 4144 4145 // CPU side clipping used to fit text in their frame when the frame is too small. Only does clipping for axis aligned quads. 4146 if (cpu_fine_clip) 4147 { 4148 if (x1 < clip_rect.x) 4149 { 4150 u1 = u1 + (1.0f - (x2 - clip_rect.x) / (x2 - x1)) * (u2 - u1); 4151 x1 = clip_rect.x; 4152 } 4153 if (y1 < clip_rect.y) 4154 { 4155 v1 = v1 + (1.0f - (y2 - clip_rect.y) / (y2 - y1)) * (v2 - v1); 4156 y1 = clip_rect.y; 4157 } 4158 if (x2 > clip_rect.z) 4159 { 4160 u2 = u1 + ((clip_rect.z - x1) / (x2 - x1)) * (u2 - u1); 4161 x2 = clip_rect.z; 4162 } 4163 if (y2 > clip_rect.w) 4164 { 4165 v2 = v1 + ((clip_rect.w - y1) / (y2 - y1)) * (v2 - v1); 4166 y2 = clip_rect.w; 4167 } 4168 if (y1 >= y2) 4169 { 4170 x += char_width; 4171 continue; 4172 } 4173 } 4174 4175 // Support for untinted glyphs 4176 ImU32 glyph_col = glyph->Colored ? col_untinted : col; 4177 4178 // We are NOT calling PrimRectUV() here because non-inlined causes too much overhead in a debug builds. Inlined here: 4179 { 4180 vtx_write[0].pos.x = x1; vtx_write[0].pos.y = y1; vtx_write[0].col = glyph_col; vtx_write[0].uv.x = u1; vtx_write[0].uv.y = v1; 4181 vtx_write[1].pos.x = x2; vtx_write[1].pos.y = y1; vtx_write[1].col = glyph_col; vtx_write[1].uv.x = u2; vtx_write[1].uv.y = v1; 4182 vtx_write[2].pos.x = x2; vtx_write[2].pos.y = y2; vtx_write[2].col = glyph_col; vtx_write[2].uv.x = u2; vtx_write[2].uv.y = v2; 4183 vtx_write[3].pos.x = x1; vtx_write[3].pos.y = y2; vtx_write[3].col = glyph_col; vtx_write[3].uv.x = u1; vtx_write[3].uv.y = v2; 4184 idx_write[0] = (ImDrawIdx)(vtx_index); idx_write[1] = (ImDrawIdx)(vtx_index + 1); idx_write[2] = (ImDrawIdx)(vtx_index + 2); 4185 idx_write[3] = (ImDrawIdx)(vtx_index); idx_write[4] = (ImDrawIdx)(vtx_index + 2); idx_write[5] = (ImDrawIdx)(vtx_index + 3); 4186 vtx_write += 4; 4187 vtx_index += 4; 4188 idx_write += 6; 4189 } 4190 } 4191 } 4192 x += char_width; 4193 } 4194 4195 // Give back unused vertices (clipped ones, blanks) ~ this is essentially a PrimUnreserve() action. 4196 draw_list->VtxBuffer.Size = (int)(vtx_write - draw_list->VtxBuffer.Data); // Same as calling shrink() 4197 draw_list->IdxBuffer.Size = (int)(idx_write - draw_list->IdxBuffer.Data); 4198 draw_list->CmdBuffer[draw_list->CmdBuffer.Size - 1].ElemCount -= (idx_expected_size - draw_list->IdxBuffer.Size); 4199 draw_list->_VtxWritePtr = vtx_write; 4200 draw_list->_IdxWritePtr = idx_write; 4201 draw_list->_VtxCurrentIdx = vtx_index; 4202 } 4203 4204 //----------------------------------------------------------------------------- 4205 // [SECTION] ImGui Internal Render Helpers 4206 //----------------------------------------------------------------------------- 4207 // Vaguely redesigned to stop accessing ImGui global state: 4208 // - RenderArrow() 4209 // - RenderBullet() 4210 // - RenderCheckMark() 4211 // - RenderArrowPointingAt() 4212 // - RenderRectFilledRangeH() 4213 // - RenderRectFilledWithHole() 4214 //----------------------------------------------------------------------------- 4215 // Function in need of a redesign (legacy mess) 4216 // - RenderColorRectWithAlphaCheckerboard() 4217 //----------------------------------------------------------------------------- 4218 4219 // Render an arrow aimed to be aligned with text (p_min is a position in the same space text would be positioned). To e.g. denote expanded/collapsed state 4220 void ImGui::RenderArrow(ImDrawList* draw_list, ImVec2 pos, ImU32 col, ImGuiDir dir, float scale) 4221 { 4222 const float h = draw_list->_Data->FontSize * 1.00f; 4223 float r = h * 0.40f * scale; 4224 ImVec2 center = pos + ImVec2(h * 0.50f, h * 0.50f * scale); 4225 4226 ImVec2 a, b, c; 4227 switch (dir) 4228 { 4229 case ImGuiDir_Up: 4230 case ImGuiDir_Down: 4231 if (dir == ImGuiDir_Up) r = -r; 4232 a = ImVec2(+0.000f, +0.750f) * r; 4233 b = ImVec2(-0.866f, -0.750f) * r; 4234 c = ImVec2(+0.866f, -0.750f) * r; 4235 break; 4236 case ImGuiDir_Left: 4237 case ImGuiDir_Right: 4238 if (dir == ImGuiDir_Left) r = -r; 4239 a = ImVec2(+0.750f, +0.000f) * r; 4240 b = ImVec2(-0.750f, +0.866f) * r; 4241 c = ImVec2(-0.750f, -0.866f) * r; 4242 break; 4243 case ImGuiDir_None: 4244 case ImGuiDir_COUNT: 4245 IM_ASSERT(0); 4246 break; 4247 } 4248 draw_list->AddTriangleFilled(center + a, center + b, center + c, col); 4249 } 4250 4251 void ImGui::RenderBullet(ImDrawList* draw_list, ImVec2 pos, ImU32 col) 4252 { 4253 // FIXME-OPT: This should be baked in font. 4254 draw_list->AddCircleFilled(pos, draw_list->_Data->FontSize * 0.20f, col, 8); 4255 } 4256 4257 void ImGui::RenderCheckMark(ImDrawList* draw_list, ImVec2 pos, ImU32 col, float sz) 4258 { 4259 float thickness = ImMax(sz / 5.0f, 1.0f); 4260 sz -= thickness * 0.5f; 4261 pos += ImVec2(thickness * 0.25f, thickness * 0.25f); 4262 4263 float third = sz / 3.0f; 4264 float bx = pos.x + third; 4265 float by = pos.y + sz - third * 0.5f; 4266 draw_list->PathLineTo(ImVec2(bx - third, by - third)); 4267 draw_list->PathLineTo(ImVec2(bx, by)); 4268 draw_list->PathLineTo(ImVec2(bx + third * 2.0f, by - third * 2.0f)); 4269 draw_list->PathStroke(col, 0, thickness); 4270 } 4271 4272 // Render an arrow. 'pos' is position of the arrow tip. half_sz.x is length from base to tip. half_sz.y is length on each side. 4273 void ImGui::RenderArrowPointingAt(ImDrawList* draw_list, ImVec2 pos, ImVec2 half_sz, ImGuiDir direction, ImU32 col) 4274 { 4275 switch (direction) 4276 { 4277 case ImGuiDir_Left: draw_list->AddTriangleFilled(ImVec2(pos.x + half_sz.x, pos.y - half_sz.y), ImVec2(pos.x + half_sz.x, pos.y + half_sz.y), pos, col); return; 4278 case ImGuiDir_Right: draw_list->AddTriangleFilled(ImVec2(pos.x - half_sz.x, pos.y + half_sz.y), ImVec2(pos.x - half_sz.x, pos.y - half_sz.y), pos, col); return; 4279 case ImGuiDir_Up: draw_list->AddTriangleFilled(ImVec2(pos.x + half_sz.x, pos.y + half_sz.y), ImVec2(pos.x - half_sz.x, pos.y + half_sz.y), pos, col); return; 4280 case ImGuiDir_Down: draw_list->AddTriangleFilled(ImVec2(pos.x - half_sz.x, pos.y - half_sz.y), ImVec2(pos.x + half_sz.x, pos.y - half_sz.y), pos, col); return; 4281 case ImGuiDir_None: case ImGuiDir_COUNT: break; // Fix warnings 4282 } 4283 } 4284 4285 static inline float ImAcos01(float x) 4286 { 4287 if (x <= 0.0f) return IM_PI * 0.5f; 4288 if (x >= 1.0f) return 0.0f; 4289 return ImAcos(x); 4290 //return (-0.69813170079773212f * x * x - 0.87266462599716477f) * x + 1.5707963267948966f; // Cheap approximation, may be enough for what we do. 4291 } 4292 4293 // FIXME: Cleanup and move code to ImDrawList. 4294 void ImGui::RenderRectFilledRangeH(ImDrawList* draw_list, const ImRect& rect, ImU32 col, float x_start_norm, float x_end_norm, float rounding) 4295 { 4296 if (x_end_norm == x_start_norm) 4297 return; 4298 if (x_start_norm > x_end_norm) 4299 ImSwap(x_start_norm, x_end_norm); 4300 4301 ImVec2 p0 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_start_norm), rect.Min.y); 4302 ImVec2 p1 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_end_norm), rect.Max.y); 4303 if (rounding == 0.0f) 4304 { 4305 draw_list->AddRectFilled(p0, p1, col, 0.0f); 4306 return; 4307 } 4308 4309 rounding = ImClamp(ImMin((rect.Max.x - rect.Min.x) * 0.5f, (rect.Max.y - rect.Min.y) * 0.5f) - 1.0f, 0.0f, rounding); 4310 const float inv_rounding = 1.0f / rounding; 4311 const float arc0_b = ImAcos01(1.0f - (p0.x - rect.Min.x) * inv_rounding); 4312 const float arc0_e = ImAcos01(1.0f - (p1.x - rect.Min.x) * inv_rounding); 4313 const float half_pi = IM_PI * 0.5f; // We will == compare to this because we know this is the exact value ImAcos01 can return. 4314 const float x0 = ImMax(p0.x, rect.Min.x + rounding); 4315 if (arc0_b == arc0_e) 4316 { 4317 draw_list->PathLineTo(ImVec2(x0, p1.y)); 4318 draw_list->PathLineTo(ImVec2(x0, p0.y)); 4319 } 4320 else if (arc0_b == 0.0f && arc0_e == half_pi) 4321 { 4322 draw_list->PathArcToFast(ImVec2(x0, p1.y - rounding), rounding, 3, 6); // BL 4323 draw_list->PathArcToFast(ImVec2(x0, p0.y + rounding), rounding, 6, 9); // TR 4324 } 4325 else 4326 { 4327 draw_list->PathArcTo(ImVec2(x0, p1.y - rounding), rounding, IM_PI - arc0_e, IM_PI - arc0_b); // BL 4328 draw_list->PathArcTo(ImVec2(x0, p0.y + rounding), rounding, IM_PI + arc0_b, IM_PI + arc0_e); // TR 4329 } 4330 if (p1.x > rect.Min.x + rounding) 4331 { 4332 const float arc1_b = ImAcos01(1.0f - (rect.Max.x - p1.x) * inv_rounding); 4333 const float arc1_e = ImAcos01(1.0f - (rect.Max.x - p0.x) * inv_rounding); 4334 const float x1 = ImMin(p1.x, rect.Max.x - rounding); 4335 if (arc1_b == arc1_e) 4336 { 4337 draw_list->PathLineTo(ImVec2(x1, p0.y)); 4338 draw_list->PathLineTo(ImVec2(x1, p1.y)); 4339 } 4340 else if (arc1_b == 0.0f && arc1_e == half_pi) 4341 { 4342 draw_list->PathArcToFast(ImVec2(x1, p0.y + rounding), rounding, 9, 12); // TR 4343 draw_list->PathArcToFast(ImVec2(x1, p1.y - rounding), rounding, 0, 3); // BR 4344 } 4345 else 4346 { 4347 draw_list->PathArcTo(ImVec2(x1, p0.y + rounding), rounding, -arc1_e, -arc1_b); // TR 4348 draw_list->PathArcTo(ImVec2(x1, p1.y - rounding), rounding, +arc1_b, +arc1_e); // BR 4349 } 4350 } 4351 draw_list->PathFillConvex(col); 4352 } 4353 4354 void ImGui::RenderRectFilledWithHole(ImDrawList* draw_list, const ImRect& outer, const ImRect& inner, ImU32 col, float rounding) 4355 { 4356 const bool fill_L = (inner.Min.x > outer.Min.x); 4357 const bool fill_R = (inner.Max.x < outer.Max.x); 4358 const bool fill_U = (inner.Min.y > outer.Min.y); 4359 const bool fill_D = (inner.Max.y < outer.Max.y); 4360 if (fill_L) draw_list->AddRectFilled(ImVec2(outer.Min.x, inner.Min.y), ImVec2(inner.Min.x, inner.Max.y), col, rounding, ImDrawFlags_RoundCornersNone | (fill_U ? 0 : ImDrawFlags_RoundCornersTopLeft) | (fill_D ? 0 : ImDrawFlags_RoundCornersBottomLeft)); 4361 if (fill_R) draw_list->AddRectFilled(ImVec2(inner.Max.x, inner.Min.y), ImVec2(outer.Max.x, inner.Max.y), col, rounding, ImDrawFlags_RoundCornersNone | (fill_U ? 0 : ImDrawFlags_RoundCornersTopRight) | (fill_D ? 0 : ImDrawFlags_RoundCornersBottomRight)); 4362 if (fill_U) draw_list->AddRectFilled(ImVec2(inner.Min.x, outer.Min.y), ImVec2(inner.Max.x, inner.Min.y), col, rounding, ImDrawFlags_RoundCornersNone | (fill_L ? 0 : ImDrawFlags_RoundCornersTopLeft) | (fill_R ? 0 : ImDrawFlags_RoundCornersTopRight)); 4363 if (fill_D) draw_list->AddRectFilled(ImVec2(inner.Min.x, inner.Max.y), ImVec2(inner.Max.x, outer.Max.y), col, rounding, ImDrawFlags_RoundCornersNone | (fill_L ? 0 : ImDrawFlags_RoundCornersBottomLeft) | (fill_R ? 0 : ImDrawFlags_RoundCornersBottomRight)); 4364 if (fill_L && fill_U) draw_list->AddRectFilled(ImVec2(outer.Min.x, outer.Min.y), ImVec2(inner.Min.x, inner.Min.y), col, rounding, ImDrawFlags_RoundCornersTopLeft); 4365 if (fill_R && fill_U) draw_list->AddRectFilled(ImVec2(inner.Max.x, outer.Min.y), ImVec2(outer.Max.x, inner.Min.y), col, rounding, ImDrawFlags_RoundCornersTopRight); 4366 if (fill_L && fill_D) draw_list->AddRectFilled(ImVec2(outer.Min.x, inner.Max.y), ImVec2(inner.Min.x, outer.Max.y), col, rounding, ImDrawFlags_RoundCornersBottomLeft); 4367 if (fill_R && fill_D) draw_list->AddRectFilled(ImVec2(inner.Max.x, inner.Max.y), ImVec2(outer.Max.x, outer.Max.y), col, rounding, ImDrawFlags_RoundCornersBottomRight); 4368 } 4369 4370 // Helper for ColorPicker4() 4371 // NB: This is rather brittle and will show artifact when rounding this enabled if rounded corners overlap multiple cells. Caller currently responsible for avoiding that. 4372 // Spent a non reasonable amount of time trying to getting this right for ColorButton with rounding+anti-aliasing+ImGuiColorEditFlags_HalfAlphaPreview flag + various grid sizes and offsets, and eventually gave up... probably more reasonable to disable rounding altogether. 4373 // FIXME: uses ImGui::GetColorU32 4374 void ImGui::RenderColorRectWithAlphaCheckerboard(ImDrawList* draw_list, ImVec2 p_min, ImVec2 p_max, ImU32 col, float grid_step, ImVec2 grid_off, float rounding, ImDrawFlags flags) 4375 { 4376 if ((flags & ImDrawFlags_RoundCornersMask_) == 0) 4377 flags = ImDrawFlags_RoundCornersDefault_; 4378 if (((col & IM_COL32_A_MASK) >> IM_COL32_A_SHIFT) < 0xFF) 4379 { 4380 ImU32 col_bg1 = GetColorU32(ImAlphaBlendColors(IM_COL32(204, 204, 204, 255), col)); 4381 ImU32 col_bg2 = GetColorU32(ImAlphaBlendColors(IM_COL32(128, 128, 128, 255), col)); 4382 draw_list->AddRectFilled(p_min, p_max, col_bg1, rounding, flags); 4383 4384 int yi = 0; 4385 for (float y = p_min.y + grid_off.y; y < p_max.y; y += grid_step, yi++) 4386 { 4387 float y1 = ImClamp(y, p_min.y, p_max.y), y2 = ImMin(y + grid_step, p_max.y); 4388 if (y2 <= y1) 4389 continue; 4390 for (float x = p_min.x + grid_off.x + (yi & 1) * grid_step; x < p_max.x; x += grid_step * 2.0f) 4391 { 4392 float x1 = ImClamp(x, p_min.x, p_max.x), x2 = ImMin(x + grid_step, p_max.x); 4393 if (x2 <= x1) 4394 continue; 4395 ImDrawFlags cell_flags = ImDrawFlags_RoundCornersNone; 4396 if (y1 <= p_min.y) { if (x1 <= p_min.x) cell_flags |= ImDrawFlags_RoundCornersTopLeft; if (x2 >= p_max.x) cell_flags |= ImDrawFlags_RoundCornersTopRight; } 4397 if (y2 >= p_max.y) { if (x1 <= p_min.x) cell_flags |= ImDrawFlags_RoundCornersBottomLeft; if (x2 >= p_max.x) cell_flags |= ImDrawFlags_RoundCornersBottomRight; } 4398 4399 // Combine flags 4400 cell_flags = (flags == ImDrawFlags_RoundCornersNone || cell_flags == ImDrawFlags_RoundCornersNone) ? ImDrawFlags_RoundCornersNone : (cell_flags & flags); 4401 draw_list->AddRectFilled(ImVec2(x1, y1), ImVec2(x2, y2), col_bg2, rounding, cell_flags); 4402 } 4403 } 4404 } 4405 else 4406 { 4407 draw_list->AddRectFilled(p_min, p_max, col, rounding, flags); 4408 } 4409 } 4410 4411 //----------------------------------------------------------------------------- 4412 // [SECTION] Decompression code 4413 //----------------------------------------------------------------------------- 4414 // Compressed with stb_compress() then converted to a C array and encoded as base85. 4415 // Use the program in misc/fonts/binary_to_compressed_c.cpp to create the array from a TTF file. 4416 // The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size. 4417 // Decompression from stb.h (public domain) by Sean Barrett https://github.com/nothings/stb/blob/master/stb.h 4418 //----------------------------------------------------------------------------- 4419 4420 static unsigned int stb_decompress_length(const unsigned char *input) 4421 { 4422 return (input[8] << 24) + (input[9] << 16) + (input[10] << 8) + input[11]; 4423 } 4424 4425 static unsigned char *stb__barrier_out_e, *stb__barrier_out_b; 4426 static const unsigned char *stb__barrier_in_b; 4427 static unsigned char *stb__dout; 4428 static void stb__match(const unsigned char *data, unsigned int length) 4429 { 4430 // INVERSE of memmove... write each byte before copying the next... 4431 IM_ASSERT(stb__dout + length <= stb__barrier_out_e); 4432 if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; } 4433 if (data < stb__barrier_out_b) { stb__dout = stb__barrier_out_e+1; return; } 4434 while (length--) *stb__dout++ = *data++; 4435 } 4436 4437 static void stb__lit(const unsigned char *data, unsigned int length) 4438 { 4439 IM_ASSERT(stb__dout + length <= stb__barrier_out_e); 4440 if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; } 4441 if (data < stb__barrier_in_b) { stb__dout = stb__barrier_out_e+1; return; } 4442 memcpy(stb__dout, data, length); 4443 stb__dout += length; 4444 } 4445 4446 #define stb__in2(x) ((i[x] << 8) + i[(x)+1]) 4447 #define stb__in3(x) ((i[x] << 16) + stb__in2((x)+1)) 4448 #define stb__in4(x) ((i[x] << 24) + stb__in3((x)+1)) 4449 4450 static const unsigned char *stb_decompress_token(const unsigned char *i) 4451 { 4452 if (*i >= 0x20) { // use fewer if's for cases that expand small 4453 if (*i >= 0x80) stb__match(stb__dout-i[1]-1, i[0] - 0x80 + 1), i += 2; 4454 else if (*i >= 0x40) stb__match(stb__dout-(stb__in2(0) - 0x4000 + 1), i[2]+1), i += 3; 4455 else /* *i >= 0x20 */ stb__lit(i+1, i[0] - 0x20 + 1), i += 1 + (i[0] - 0x20 + 1); 4456 } else { // more ifs for cases that expand large, since overhead is amortized 4457 if (*i >= 0x18) stb__match(stb__dout-(stb__in3(0) - 0x180000 + 1), i[3]+1), i += 4; 4458 else if (*i >= 0x10) stb__match(stb__dout-(stb__in3(0) - 0x100000 + 1), stb__in2(3)+1), i += 5; 4459 else if (*i >= 0x08) stb__lit(i+2, stb__in2(0) - 0x0800 + 1), i += 2 + (stb__in2(0) - 0x0800 + 1); 4460 else if (*i == 0x07) stb__lit(i+3, stb__in2(1) + 1), i += 3 + (stb__in2(1) + 1); 4461 else if (*i == 0x06) stb__match(stb__dout-(stb__in3(1)+1), i[4]+1), i += 5; 4462 else if (*i == 0x04) stb__match(stb__dout-(stb__in3(1)+1), stb__in2(4)+1), i += 6; 4463 } 4464 return i; 4465 } 4466 4467 static unsigned int stb_adler32(unsigned int adler32, unsigned char *buffer, unsigned int buflen) 4468 { 4469 const unsigned long ADLER_MOD = 65521; 4470 unsigned long s1 = adler32 & 0xffff, s2 = adler32 >> 16; 4471 unsigned long blocklen = buflen % 5552; 4472 4473 unsigned long i; 4474 while (buflen) { 4475 for (i=0; i + 7 < blocklen; i += 8) { 4476 s1 += buffer[0], s2 += s1; 4477 s1 += buffer[1], s2 += s1; 4478 s1 += buffer[2], s2 += s1; 4479 s1 += buffer[3], s2 += s1; 4480 s1 += buffer[4], s2 += s1; 4481 s1 += buffer[5], s2 += s1; 4482 s1 += buffer[6], s2 += s1; 4483 s1 += buffer[7], s2 += s1; 4484 4485 buffer += 8; 4486 } 4487 4488 for (; i < blocklen; ++i) 4489 s1 += *buffer++, s2 += s1; 4490 4491 s1 %= ADLER_MOD, s2 %= ADLER_MOD; 4492 buflen -= blocklen; 4493 blocklen = 5552; 4494 } 4495 return (unsigned int)(s2 << 16) + (unsigned int)s1; 4496 } 4497 4498 static unsigned int stb_decompress(unsigned char *output, const unsigned char *i, unsigned int /*length*/) 4499 { 4500 if (stb__in4(0) != 0x57bC0000) return 0; 4501 if (stb__in4(4) != 0) return 0; // error! stream is > 4GB 4502 const unsigned int olen = stb_decompress_length(i); 4503 stb__barrier_in_b = i; 4504 stb__barrier_out_e = output + olen; 4505 stb__barrier_out_b = output; 4506 i += 16; 4507 4508 stb__dout = output; 4509 for (;;) { 4510 const unsigned char *old_i = i; 4511 i = stb_decompress_token(i); 4512 if (i == old_i) { 4513 if (*i == 0x05 && i[1] == 0xfa) { 4514 IM_ASSERT(stb__dout == output + olen); 4515 if (stb__dout != output + olen) return 0; 4516 if (stb_adler32(1, output, olen) != (unsigned int) stb__in4(2)) 4517 return 0; 4518 return olen; 4519 } else { 4520 IM_ASSERT(0); /* NOTREACHED */ 4521 return 0; 4522 } 4523 } 4524 IM_ASSERT(stb__dout <= output + olen); 4525 if (stb__dout > output + olen) 4526 return 0; 4527 } 4528 } 4529 4530 //----------------------------------------------------------------------------- 4531 // [SECTION] Default font data (ProggyClean.ttf) 4532 //----------------------------------------------------------------------------- 4533 // ProggyClean.ttf 4534 // Copyright (c) 2004, 2005 Tristan Grimmer 4535 // MIT license (see License.txt in http://www.proggyfonts.net/index.php?menu=download) 4536 // Download and more information at http://www.proggyfonts.net or http://upperboundsinteractive.com/fonts.php 4537 //----------------------------------------------------------------------------- 4538 // File: 'ProggyClean.ttf' (41208 bytes) 4539 // Exported using misc/fonts/binary_to_compressed_c.cpp (with compression + base85 string encoding). 4540 // The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size. 4541 //----------------------------------------------------------------------------- 4542 static const char proggy_clean_ttf_compressed_data_base85[11980 + 1] = 4543 "7])#######hV0qs'/###[),##/l:$#Q6>##5[n42>c-TH`->>#/e>11NNV=Bv(*:.F?uu#(gRU.o0XGH`$vhLG1hxt9?W`#,5LsCp#-i>.r$<$6pD>Lb';9Crc6tgXmKVeU2cD4Eo3R/" 4544 "2*>]b(MC;$jPfY.;h^`IWM9<Lh2TlS+f-s$o6Q<BWH`YiU.xfLq$N;$0iR/GX:U(jcW2p/W*q?-qmnUCI;jHSAiFWM.R*kU@C=GH?a9wp8f$e.-4^Qg1)Q-GL(lf(r/7GrRgwV%MS=C#" 4545 "`8ND>Qo#t'X#(v#Y9w0#1D$CIf;W'#pWUPXOuxXuU(H9M(1<q-UE31#^-V'8IRUo7Qf./L>=Ke$$'5F%)]0^#0X@U.a<r:QLtFsLcL6##lOj)#.Y5<-R&KgLwqJfLgN&;Q?gI^#DY2uL" 4546 "i@^rMl9t=cWq6##weg>$FBjVQTSDgEKnIS7EM9>ZY9w0#L;>>#Mx&4Mvt//L[MkA#W@lK.N'[0#7RL_&#w+F%HtG9M#XL`N&.,GM4Pg;-<nLENhvx>-VsM.M0rJfLH2eTM`*oJMHRC`N" 4547 "kfimM2J,W-jXS:)r0wK#@Fge$U>`w'N7G#$#fB#$E^$#:9:hk+eOe--6x)F7*E%?76%^GMHePW-Z5l'&GiF#$956:rS?dA#fiK:)Yr+`�j@'DbG&#^$PG.Ll+DNa<XCMKEV*N)LN/N" 4548 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";u.T%fAr%4tJ8&><1=GHZ_+m9/#H1F^R#SC#*N=BA9(D?v[UiFY>>^8p,KKF.W]L29uLkLlu/+4T<XoIB&hx=T1PcDaB&;HH+-AFr?(m9HZV)FKS8JCw;SD=6[^/DZUL`EUDf]GGlG&>" 4621 "w$)F./^n3+rlo+DB;5sIYGNk+i1t-69Jg--0pao7Sm#K)pdHW&;LuDNH@H>#/X-TI(;P>#,Gc>#0Su>#4`1?#8lC?#<xU?#@.i?#D:%@#HF7@#LRI@#P_[@#Tkn@#Xw*A#]-=A#a9OA#" 4622 "d<F&#*;G##.GY##2Sl##6`($#:l:$#>xL$#B.`$#F:r$#JF.%#NR@%#R_R%#Vke%#Zww%#_-4^Rh%Sflr-k'MS.o?.5/sWel/wpEM0%3'/1)K^f1-d>G21&v(35>V`39V7A4=onx4" 4623 "A1OY5EI0;6Ibgr6M$HS7Q<)58C5w,;WoA*#[%T*#`1g*#d=#+#hI5+#lUG+#pbY+#tnl+#x$),#&1;,#*=M,#.I`,#2Ur,#6b.-#;w[H#iQtA#m^0B#qjBB#uvTB##-hB#'9$C#+E6C#" 4624 "/QHC#3^ZC#7jmC#;v)D#?,<D#C8ND#GDaD#KPsD#O]/E#g1A5#KA*1#gC17#MGd;#8(02#L-d3#rWM4#Hga1#,<w0#T.j<#O#'2#CYN1#qa^:#_4m3#o@/=#eG8=#t8J5#`+78#4uI-#" 4625 "m3B2#SB[8#Q0@8#i[*9#iOn8#1Nm;#^sN9#qh<9#:=x-#P;K2#$%X9#bC+.#Rg;<#mN=.#MTF.#RZO.#2?)4#Y#(/#[)1/#b;L/#dAU/#0Sv;#lY$0#n`-0#sf60#(F24#wrH0#%/e0#" 4626 "TmD<#%JSMFove:CTBEXI:<eh2g)B,3h2^G3i;#d3jD>)4kMYD4lVu`4m`:&5niUA5@(A5BA1]PBB:xlBCC=2CDLXMCEUtiCf&0g2'tN?PGT4CPGT4CPGT4CPGT4CPGT4CPGT4CPGT4CP" 4627 "GT4CPGT4CPGT4CPGT4CPGT4CPGT4CP-qekC`.9kEg^+F$kwViFJTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5o,^<-28ZI'O?;xp" 4628 "O?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xp;7q-#lLYI:xvD=#"; 4629 4630 static const char* GetDefaultCompressedFontDataTTFBase85() 4631 { 4632 return proggy_clean_ttf_compressed_data_base85; 4633 } 4634 4635 #endif // #ifndef IMGUI_DISABLE