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PDCursesMod/wincon/pdcscrn.c

719 lines
18 KiB
C

/* PDCurses */
#include "pdcwin.h"
#include <stdlib.h>
/* Color component table */
PDCCOLOR pdc_color[PDC_MAXCOL];
HANDLE std_con_out = INVALID_HANDLE_VALUE;
HANDLE pdc_con_out = INVALID_HANDLE_VALUE;
HANDLE pdc_con_in = INVALID_HANDLE_VALUE;
DWORD pdc_quick_edit;
static short realtocurs[16] =
{
COLOR_BLACK, COLOR_BLUE, COLOR_GREEN, COLOR_CYAN, COLOR_RED,
COLOR_MAGENTA, COLOR_YELLOW, COLOR_WHITE, COLOR_BLACK + 8,
COLOR_BLUE + 8, COLOR_GREEN + 8, COLOR_CYAN + 8, COLOR_RED + 8,
COLOR_MAGENTA + 8, COLOR_YELLOW + 8, COLOR_WHITE + 8
};
static short ansitocurs[16] =
{
COLOR_BLACK, COLOR_RED, COLOR_GREEN, COLOR_YELLOW, COLOR_BLUE,
COLOR_MAGENTA, COLOR_CYAN, COLOR_WHITE, COLOR_BLACK + 8,
COLOR_RED + 8, COLOR_GREEN + 8, COLOR_YELLOW + 8, COLOR_BLUE + 8,
COLOR_MAGENTA + 8, COLOR_CYAN + 8, COLOR_WHITE + 8
};
short pdc_curstoreal[16], pdc_curstoansi[16];
short pdc_oldf, pdc_oldb, pdc_oldu;
bool pdc_conemu, pdc_wt, pdc_ansi;
enum { PDC_RESTORE_NONE, PDC_RESTORE_BUFFER };
/* Struct for storing console registry keys, and for use with the
undocumented WM_SETCONSOLEINFO message. Originally by James Brown,
www.catch22.net. */
static struct
{
ULONG Length;
COORD ScreenBufferSize;
COORD WindowSize;
ULONG WindowPosX;
ULONG WindowPosY;
COORD FontSize;
ULONG FontFamily;
ULONG FontWeight;
WCHAR FaceName[32];
ULONG CursorSize;
ULONG FullScreen;
ULONG QuickEdit;
ULONG AutoPosition;
ULONG InsertMode;
USHORT ScreenColors;
USHORT PopupColors;
ULONG HistoryNoDup;
ULONG HistoryBufferSize;
ULONG NumberOfHistoryBuffers;
COLORREF ColorTable[16];
ULONG CodePage;
HWND Hwnd;
WCHAR ConsoleTitle[0x100];
} console_info;
#ifdef HAVE_NO_INFOEX
/* Console screen buffer information (extended version) */
typedef struct _CONSOLE_SCREEN_BUFFER_INFOEX {
ULONG cbSize;
COORD dwSize;
COORD dwCursorPosition;
WORD wAttributes;
SMALL_RECT srWindow;
COORD dwMaximumWindowSize;
WORD wPopupAttributes;
BOOL bFullscreenSupported;
COLORREF ColorTable[16];
} CONSOLE_SCREEN_BUFFER_INFOEX;
typedef CONSOLE_SCREEN_BUFFER_INFOEX *PCONSOLE_SCREEN_BUFFER_INFOEX;
#endif
typedef FARPROC SetConsoleScreenBufferInfoExFn;
typedef FARPROC GetConsoleScreenBufferInfoExFn;
static SetConsoleScreenBufferInfoExFn pSetConsoleScreenBufferInfoEx = NULL;
static GetConsoleScreenBufferInfoExFn pGetConsoleScreenBufferInfoEx = NULL;
static CONSOLE_SCREEN_BUFFER_INFO orig_scr;
static CONSOLE_SCREEN_BUFFER_INFOEX console_infoex;
static LPTOP_LEVEL_EXCEPTION_FILTER xcpt_filter;
static DWORD old_console_mode = 0;
/* MSVC++ 7.1 was the last version to support Win95/98/ME. If we're
on any MSVC after that (_MSC_VER > 1310), is_nt is going to be true
no matter what. */
#if defined(_MSC_VER) && _MSC_VER > 1310
const bool is_nt = TRUE;
#else
static bool is_nt;
#endif
static void _reset_old_colors(void)
{
pdc_oldf = -1;
pdc_oldb = -1;
pdc_oldu = 0;
}
static HWND _find_console_handle(void)
{
TCHAR orgtitle[1024], temptitle[1024];
HWND wnd;
GetConsoleTitle(orgtitle, 1024);
wsprintf(temptitle, TEXT("%d/%d"), GetTickCount(), GetCurrentProcessId());
SetConsoleTitle(temptitle);
Sleep(40);
wnd = FindWindow(NULL, temptitle);
SetConsoleTitle(orgtitle);
return wnd;
}
/* Undocumented console message */
#define WM_SETCONSOLEINFO (WM_USER + 201)
/* Wrapper around WM_SETCONSOLEINFO. We need to create the necessary
section (file-mapping) object in the context of the process which
owns the console, before posting the message. Originally by JB. */
static void _set_console_info(void)
{
CONSOLE_SCREEN_BUFFER_INFO csbi;
CONSOLE_CURSOR_INFO cci;
DWORD dwConsoleOwnerPid;
HANDLE hProcess;
HANDLE hSection, hDupSection;
PVOID ptrView;
/* Each-time initialization for console_info */
GetConsoleCursorInfo(pdc_con_out, &cci);
console_info.CursorSize = cci.dwSize;
GetConsoleScreenBufferInfo(pdc_con_out, &csbi);
console_info.ScreenBufferSize = csbi.dwSize;
console_info.WindowSize.X = csbi.srWindow.Right - csbi.srWindow.Left + 1;
console_info.WindowSize.Y = csbi.srWindow.Bottom - csbi.srWindow.Top + 1;
console_info.WindowPosX = csbi.srWindow.Left;
console_info.WindowPosY = csbi.srWindow.Top;
/* Open the process which "owns" the console */
GetWindowThreadProcessId(console_info.Hwnd, &dwConsoleOwnerPid);
hProcess = OpenProcess(PROCESS_ALL_ACCESS, FALSE, dwConsoleOwnerPid);
/* Create a SECTION object backed by page-file, then map a view of
this section into the owner process so we can write the contents
of the CONSOLE_INFO buffer into it */
hSection = CreateFileMapping(INVALID_HANDLE_VALUE, 0, PAGE_READWRITE,
0, sizeof(console_info), 0);
/* Copy our console structure into the section-object */
ptrView = MapViewOfFile(hSection, FILE_MAP_WRITE|FILE_MAP_READ,
0, 0, sizeof(console_info));
memcpy(ptrView, &console_info, sizeof(console_info));
UnmapViewOfFile(ptrView);
/* Map the memory into owner process */
DuplicateHandle(GetCurrentProcess(), hSection, hProcess, &hDupSection,
0, FALSE, DUPLICATE_SAME_ACCESS);
/* Send console window the "update" message */
SendMessage(console_info.Hwnd, WM_SETCONSOLEINFO, (WPARAM)hDupSection, 0);
CloseHandle(hSection);
CloseHandle(hProcess);
}
static int _set_console_infoex(void)
{
if (!pSetConsoleScreenBufferInfoEx(pdc_con_out, &console_infoex))
return ERR;
return OK;
}
static int _set_colors(void)
{
SetConsoleTextAttribute(pdc_con_out, 7);
_reset_old_colors();
if (pSetConsoleScreenBufferInfoEx)
return _set_console_infoex();
else
{
_set_console_info();
return OK;
}
}
/* One-time initialization for console_info -- color table and font info
from the registry; other values from functions. */
static void _init_console_info(void)
{
DWORD scrnmode, len;
HKEY reghnd;
int i;
console_info.Hwnd = _find_console_handle();
console_info.Length = sizeof(console_info);
GetConsoleMode(pdc_con_in, &scrnmode);
console_info.QuickEdit = !!(scrnmode & 0x0040);
console_info.InsertMode = !!(scrnmode & 0x0020);
console_info.FullScreen = FALSE;
console_info.AutoPosition = 0x10000;
console_info.ScreenColors = SP->orig_back << 4 | SP->orig_fore;
console_info.PopupColors = 0xf5;
console_info.HistoryNoDup = FALSE;
console_info.HistoryBufferSize = 50;
console_info.NumberOfHistoryBuffers = 4;
console_info.CodePage = GetConsoleOutputCP();
RegOpenKeyEx(HKEY_CURRENT_USER, TEXT("Console"), 0,
KEY_QUERY_VALUE, &reghnd);
len = sizeof(DWORD);
/* Default color table */
for (i = 0; i < 16; i++)
{
char tname[13];
sprintf(tname, "ColorTable%02d", i);
RegQueryValueExA(reghnd, tname, NULL, NULL,
(LPBYTE)(&(console_info.ColorTable[i])), &len);
}
/* Font info */
RegQueryValueEx(reghnd, TEXT("FontSize"), NULL, NULL,
(LPBYTE)(&console_info.FontSize), &len);
RegQueryValueEx(reghnd, TEXT("FontFamily"), NULL, NULL,
(LPBYTE)(&console_info.FontFamily), &len);
RegQueryValueEx(reghnd, TEXT("FontWeight"), NULL, NULL,
(LPBYTE)(&console_info.FontWeight), &len);
len = sizeof(WCHAR) * 32;
RegQueryValueExW(reghnd, L"FaceName", NULL, NULL,
(LPBYTE)(console_info.FaceName), &len);
RegCloseKey(reghnd);
}
static int _init_console_infoex(void)
{
console_infoex.cbSize = sizeof(console_infoex);
if (!pGetConsoleScreenBufferInfoEx(pdc_con_out, &console_infoex))
return ERR;
console_infoex.srWindow.Right++;
console_infoex.srWindow.Bottom++;
return OK;
}
static COLORREF *_get_colors(void)
{
if (pGetConsoleScreenBufferInfoEx)
{
int status = OK;
if (!console_infoex.cbSize)
status = _init_console_infoex();
return (status == ERR) ? NULL :
(COLORREF *)(&(console_infoex.ColorTable));
}
else
{
if (!console_info.Hwnd)
_init_console_info();
return (COLORREF *)(&(console_info.ColorTable));
}
}
/* restore the original console buffer in the event of a crash */
static LONG WINAPI _restore_console(LPEXCEPTION_POINTERS ep)
{
PDC_scr_close();
INTENTIONALLY_UNUSED_PARAMETER( ep);
return EXCEPTION_CONTINUE_SEARCH;
}
/* restore the original console buffer on Ctrl+Break (or Ctrl+C,
if it gets re-enabled) */
static BOOL WINAPI _ctrl_break(DWORD dwCtrlType)
{
if (dwCtrlType == CTRL_BREAK_EVENT || dwCtrlType == CTRL_C_EVENT)
PDC_scr_close();
return FALSE;
}
/* close the physical screen -- may restore the screen to its state
before PDC_scr_open(); miscellaneous cleanup */
void PDC_scr_close(void)
{
PDC_LOG(("PDC_scr_close() - called\n"));
if (SP->visibility != 1)
curs_set(1);
PDC_reset_shell_mode();
/* Position cursor to the bottom left of the screen. */
if (SP->_restore == PDC_RESTORE_NONE)
{
SMALL_RECT win;
win.Left = orig_scr.srWindow.Left;
win.Right = orig_scr.srWindow.Right;
win.Top = 0;
win.Bottom = orig_scr.srWindow.Bottom - orig_scr.srWindow.Top;
SetConsoleWindowInfo(pdc_con_out, TRUE, &win);
PDC_gotoyx(win.Bottom, 0);
}
}
void PDC_scr_free(void)
{
if (pdc_con_out != std_con_out)
{
CloseHandle(pdc_con_out);
pdc_con_out = std_con_out;
}
SetUnhandledExceptionFilter(xcpt_filter);
SetConsoleCtrlHandler(_ctrl_break, FALSE);
}
/* open the physical screen -- miscellaneous initialization, may save
the existing screen for later restoration */
int PDC_scr_open(void)
{
const char *str;
CONSOLE_SCREEN_BUFFER_INFO csbi;
HMODULE h_kernel;
BOOL result;
int i;
PDC_LOG(("PDC_scr_open() - called\n"));
for (i = 0; i < 16; i++)
{
pdc_curstoreal[realtocurs[i]] = (short)i;
pdc_curstoansi[ansitocurs[i]] = (short)i;
}
_reset_old_colors();
std_con_out =
pdc_con_out = GetStdHandle(STD_OUTPUT_HANDLE);
pdc_con_in = GetStdHandle(STD_INPUT_HANDLE);
if (GetFileType(pdc_con_in) != FILE_TYPE_CHAR)
{
fprintf(stderr, "\nRedirection is not supported.\n");
exit(1);
}
#if !defined(_MSC_VER) || _MSC_VER <= 1310
is_nt = !(GetVersion() & 0x80000000);
#endif
pdc_wt = !!getenv("WT_SESSION");
str = pdc_wt ? NULL : getenv("ConEmuANSI");
pdc_conemu = !!str;
pdc_ansi =
#ifdef PDC_WIDE
pdc_wt ? TRUE :
#endif
pdc_conemu ? !strcmp(str, "ON") : FALSE;
GetConsoleScreenBufferInfo(pdc_con_out, &csbi);
GetConsoleScreenBufferInfo(pdc_con_out, &orig_scr);
GetConsoleMode(pdc_con_in, &old_console_mode);
/* preserve QuickEdit Mode setting for use in PDC_mouse_set() when
the mouse is not enabled -- other console input settings are
cleared */
pdc_quick_edit = old_console_mode & 0x0040;
SP->mouse_wait = PDC_CLICK_PERIOD;
SP->audible = TRUE;
SP->termattrs = A_COLOR | A_REVERSE;
if (pdc_ansi)
SP->termattrs |= A_UNDERLINE | A_ITALIC;
SP->orig_fore = csbi.wAttributes & 0x0f;
SP->orig_back = (csbi.wAttributes & 0xf0) >> 4;
SP->orig_attr = TRUE;
SP->_restore = PDC_RESTORE_NONE;
if ((str = getenv("PDC_RESTORE_SCREEN")) == NULL || *str != '0')
{
/* Create a new console buffer */
pdc_con_out =
CreateConsoleScreenBuffer(GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL, CONSOLE_TEXTMODE_BUFFER, NULL);
if (pdc_con_out == INVALID_HANDLE_VALUE)
{
PDC_LOG(("PDC_scr_open() - screen buffer failure\n"));
pdc_con_out = std_con_out;
}
else
SP->_restore = PDC_RESTORE_BUFFER;
}
xcpt_filter = SetUnhandledExceptionFilter(_restore_console);
SetConsoleCtrlHandler(_ctrl_break, TRUE);
SP->_preserve = (getenv("PDC_PRESERVE_SCREEN") != NULL);
/* ENABLE_LVB_GRID_WORLDWIDE */
result = SetConsoleMode(pdc_con_out, 0x0010);
if (result)
SP->termattrs |= A_UNDERLINE | A_LEFT | A_RIGHT;
PDC_reset_prog_mode();
PDC_set_function_key( FUNCTION_KEY_COPY, 0);
SP->mono = FALSE;
h_kernel = GetModuleHandleA("kernel32.dll");
pGetConsoleScreenBufferInfoEx =
(GetConsoleScreenBufferInfoExFn)GetProcAddress(h_kernel,
"GetConsoleScreenBufferInfoEx");
pSetConsoleScreenBufferInfoEx =
(SetConsoleScreenBufferInfoExFn)GetProcAddress(h_kernel,
"SetConsoleScreenBufferInfoEx");
return OK;
}
/* Calls SetConsoleWindowInfo with the given parameters, but fits them
if a scoll bar shrinks the maximum possible value. The rectangle
must at least fit in a half-sized window. */
static BOOL _fit_console_window(HANDLE con_out, CONST SMALL_RECT *rect)
{
SMALL_RECT run;
SHORT mx, my;
if (SetConsoleWindowInfo(con_out, TRUE, rect))
return TRUE;
run = *rect;
run.Right /= 2;
run.Bottom /= 2;
mx = run.Right;
my = run.Bottom;
if (!SetConsoleWindowInfo(con_out, TRUE, &run))
return FALSE;
for (run.Right = rect->Right; run.Right >= mx; run.Right--)
if (SetConsoleWindowInfo(con_out, TRUE, &run))
break;
if (run.Right < mx)
return FALSE;
for (run.Bottom = rect->Bottom; run.Bottom >= my; run.Bottom--)
if (SetConsoleWindowInfo(con_out, TRUE, &run))
return TRUE;
return FALSE;
}
/* the core of resize_term() */
int PDC_resize_screen(int nlines, int ncols)
{
SMALL_RECT rect;
COORD size, max;
const bool prog_resize = nlines || ncols;
if( !stdscr) /* We're trying to specify an initial screen size */
{ /* before calling initscr(). This works on some */
return OK; /* some platforms, but not on this one (yet). */
}
if (!prog_resize)
{
nlines = PDC_get_rows();
ncols = PDC_get_columns();
}
if (nlines < 2 || ncols < 2)
return ERR;
max = GetLargestConsoleWindowSize(pdc_con_out);
rect.Left = rect.Top = 0;
rect.Right = (SHORT)ncols - 1;
if (rect.Right > max.X)
rect.Right = max.X;
rect.Bottom = (SHORT)nlines - 1;
if (rect.Bottom > max.Y)
rect.Bottom = max.Y;
size.X = rect.Right + 1;
size.Y = rect.Bottom + 1;
_fit_console_window(pdc_con_out, &rect);
SetConsoleScreenBufferSize(pdc_con_out, size);
if (prog_resize)
{
_fit_console_window(pdc_con_out, &rect);
SetConsoleScreenBufferSize(pdc_con_out, size);
}
SetConsoleActiveScreenBuffer(pdc_con_out);
PDC_flushinp();
return OK;
}
void PDC_reset_prog_mode(void)
{
PDC_LOG(("PDC_reset_prog_mode() - called.\n"));
if (pdc_con_out != std_con_out)
SetConsoleActiveScreenBuffer(pdc_con_out);
else if (is_nt)
{
COORD bufsize;
SMALL_RECT rect;
bufsize.X = orig_scr.srWindow.Right - orig_scr.srWindow.Left + 1;
bufsize.Y = orig_scr.srWindow.Bottom - orig_scr.srWindow.Top + 1;
rect.Top = rect.Left = 0;
rect.Bottom = bufsize.Y - 1;
rect.Right = bufsize.X - 1;
SetConsoleScreenBufferSize(pdc_con_out, bufsize);
SetConsoleWindowInfo(pdc_con_out, TRUE, &rect);
SetConsoleScreenBufferSize(pdc_con_out, bufsize);
SetConsoleActiveScreenBuffer(pdc_con_out);
}
PDC_mouse_set();
}
void PDC_reset_shell_mode(void)
{
PDC_LOG(("PDC_reset_shell_mode() - called.\n"));
if (pdc_con_out != std_con_out)
SetConsoleActiveScreenBuffer(std_con_out);
else if (is_nt)
{
SetConsoleScreenBufferSize(pdc_con_out, orig_scr.dwSize);
SetConsoleWindowInfo(pdc_con_out, TRUE, &orig_scr.srWindow);
SetConsoleScreenBufferSize(pdc_con_out, orig_scr.dwSize);
SetConsoleWindowInfo(pdc_con_out, TRUE, &orig_scr.srWindow);
SetConsoleActiveScreenBuffer(pdc_con_out);
}
SetConsoleMode(pdc_con_in, old_console_mode | 0x0080);
}
void PDC_restore_screen_mode(int i)
{
INTENTIONALLY_UNUSED_PARAMETER( i);
}
void PDC_save_screen_mode(int i)
{
INTENTIONALLY_UNUSED_PARAMETER( i);
}
bool PDC_can_change_color(void)
{
return is_nt;
}
int PDC_color_content(int color, int *red, int *green, int *blue)
{
if (color < 16 && !(pdc_conemu || pdc_wt))
{
COLORREF *color_table = _get_colors();
if (color_table)
{
DWORD col = color_table[pdc_curstoreal[color]];
*red = DIVROUND(GetRValue(col) * 1000, 255);
*green = DIVROUND(GetGValue(col) * 1000, 255);
*blue = DIVROUND(GetBValue(col) * 1000, 255);
}
else
return ERR;
}
else
{
if (!pdc_color[color].mapped)
{
*red = *green = *blue = -1;
return ERR;
}
*red = pdc_color[color].r;
*green = pdc_color[color].g;
*blue = pdc_color[color].b;
}
return OK;
}
int PDC_init_color(int color, int red, int green, int blue)
{
if (red == -1 && green == -1 && blue == -1)
{
pdc_color[color].mapped = FALSE;
return OK;
}
if (color < 16 && !(pdc_conemu || pdc_wt))
{
COLORREF *color_table = _get_colors();
if (color_table)
{
color_table[pdc_curstoreal[color]] =
RGB(DIVROUND(red * 255, 1000),
DIVROUND(green * 255, 1000),
DIVROUND(blue * 255, 1000));
return _set_colors();
}
return ERR;
}
else
{
pdc_color[color].r = (short)red;
pdc_color[color].g = (short)green;
pdc_color[color].b = (short)blue;
pdc_color[color].mapped = TRUE;
}
return OK;
}
/* Does nothing in the Win32 flavor of PDCurses. Included solely because
without this, we get an unresolved external... */
void PDC_set_resize_limits( const int new_min_lines, const int new_max_lines,
const int new_min_cols, const int new_max_cols)
{
INTENTIONALLY_UNUSED_PARAMETER( new_min_lines);
INTENTIONALLY_UNUSED_PARAMETER( new_max_lines);
INTENTIONALLY_UNUSED_PARAMETER( new_min_cols);
INTENTIONALLY_UNUSED_PARAMETER( new_max_cols);
}