diff options
Diffstat (limited to 'src/drivers/WinAPI/Fl_WinAPI_Screen_Driver.cxx')
| -rw-r--r-- | src/drivers/WinAPI/Fl_WinAPI_Screen_Driver.cxx | 493 |
1 files changed, 0 insertions, 493 deletions
diff --git a/src/drivers/WinAPI/Fl_WinAPI_Screen_Driver.cxx b/src/drivers/WinAPI/Fl_WinAPI_Screen_Driver.cxx deleted file mode 100644 index b1ddc9f91..000000000 --- a/src/drivers/WinAPI/Fl_WinAPI_Screen_Driver.cxx +++ /dev/null @@ -1,493 +0,0 @@ -// -// Windows screen interface for the Fast Light Tool Kit (FLTK). -// -// Copyright 1998-2022 by Bill Spitzak and others. -// -// This library is free software. Distribution and use rights are outlined in -// the file "COPYING" which should have been included with this file. If this -// file is missing or damaged, see the license at: -// -// https://www.fltk.org/COPYING.php -// -// Please see the following page on how to report bugs and issues: -// -// https://www.fltk.org/bugs.php -// - - -#include <config.h> -#include "Fl_WinAPI_Screen_Driver.H" -#include "../GDI/Fl_Font.H" -#include <FL/Fl.H> -#include <FL/platform.H> -#include <FL/Fl_RGB_Image.H> -#include <FL/fl_ask.H> -#include <stdio.h> - - -// these are set by Fl::args() and override any system colors: from Fl_get_system_colors.cxx -extern const char *fl_fg; -extern const char *fl_bg; -extern const char *fl_bg2; -// end of extern additions workaround - - -#if !defined(HMONITOR_DECLARED) && (_WIN32_WINNT < 0x0500) -# define COMPILE_MULTIMON_STUBS -# include <multimon.h> -#endif // !HMONITOR_DECLARED && _WIN32_WINNT < 0x0500 - -static Fl_Text_Editor::Key_Binding extra_bindings[] = { - // Define Windows specific accelerators... - { 'y', FL_CTRL, Fl_Text_Editor::kf_redo ,0}, - { 0, 0, 0 ,0} -}; - - -Fl_WinAPI_Screen_Driver::Fl_WinAPI_Screen_Driver() : Fl_Screen_Driver() { - text_editor_extra_key_bindings = extra_bindings; - for (int i = 0; i < MAX_SCREENS; i++) scale_of_screen[i] = 1; - scaling_capability = SYSTEMWIDE_APP_SCALING; -} - -int Fl_WinAPI_Screen_Driver::visual(int flags) -{ - fl_GetDC(0); - if (flags & FL_DOUBLE) return 0; - HDC gc = (HDC)Fl_Graphics_Driver::default_driver().gc(); - if (!(flags & FL_INDEX) && - GetDeviceCaps(gc,BITSPIXEL) <= 8) return 0; - if ((flags & FL_RGB8) && GetDeviceCaps(gc,BITSPIXEL)<24) return 0; - return 1; -} - - -// We go the much more difficult route of individually picking some multi-screen -// functions from the USER32.DLL . If these functions are not available, we -// will gracefully fall back to single monitor support. -// -// If we were to insist on the existence of "EnumDisplayMonitors" and -// "GetMonitorInfoA", it would be impossible to use FLTK on Windows 2000 -// before SP2 or earlier. - -// BOOL EnumDisplayMonitors(HDC, LPCRECT, MONITORENUMPROC, LPARAM) -typedef BOOL(WINAPI* fl_edm_func)(HDC, LPCRECT, MONITORENUMPROC, LPARAM); -// BOOL GetMonitorInfo(HMONITOR, LPMONITORINFO) -typedef BOOL(WINAPI* fl_gmi_func)(HMONITOR, LPMONITORINFO); - -static fl_gmi_func fl_gmi = NULL; // used to get a proc pointer for GetMonitorInfoA - - -BOOL Fl_WinAPI_Screen_Driver::screen_cb(HMONITOR mon, HDC hdc, LPRECT r, LPARAM d) -{ - Fl_WinAPI_Screen_Driver *drv = (Fl_WinAPI_Screen_Driver*)d; - return drv->screen_cb(mon, hdc, r); -} - - -BOOL Fl_WinAPI_Screen_Driver::screen_cb(HMONITOR mon, HDC, LPRECT r) -{ - if (num_screens >= MAX_SCREENS) return TRUE; - - MONITORINFOEX mi; - mi.cbSize = sizeof(mi); - - // GetMonitorInfo(mon, &mi); - // (but we use our self-acquired function pointer instead) - if (fl_gmi(mon, &mi)) { - screens[num_screens] = mi.rcMonitor; - // If we also want to record the work area, we would also store mi.rcWork at this point - work_area[num_screens] = mi.rcWork; - num_screens++; - } - return TRUE; -} - - -void Fl_WinAPI_Screen_Driver::init() -{ - open_display(); - // Since not all versions of Windows include multiple monitor support, - // we do a run-time check for the required functions... - HMODULE hMod = GetModuleHandle("USER32.DLL"); - - if (hMod) { - // check that EnumDisplayMonitors is available - fl_edm_func fl_edm = (fl_edm_func)GetProcAddress(hMod, "EnumDisplayMonitors"); - - if (fl_edm) { - // we have EnumDisplayMonitors - do we also have GetMonitorInfoA ? - fl_gmi = (fl_gmi_func)GetProcAddress(hMod, "GetMonitorInfoA"); - if (fl_gmi) { - // We have GetMonitorInfoA, enumerate all the screens... - // EnumDisplayMonitors(0,0,screen_cb,0); - // (but we use our self-acquired function pointer instead) - // NOTE: num_screens is incremented in screen_cb so we must first reset it here... - num_screens = 0; - fl_edm(0, 0, screen_cb, (LPARAM)this); - return; - } - } - } - - // If we get here, assume we have 1 monitor... - num_screens = 1; - screens[0].top = 0; - screens[0].left = 0; - screens[0].right = GetSystemMetrics(SM_CXSCREEN); - screens[0].bottom = GetSystemMetrics(SM_CYSCREEN); - work_area[0] = screens[0]; -} - - -void Fl_WinAPI_Screen_Driver::screen_work_area(int &X, int &Y, int &W, int &H, int n) -{ - if (num_screens < 0) init(); - if (n < 0 || n >= num_screens) n = 0; - X = int(work_area[n].left/scale_of_screen[n]); - Y = int(work_area[n].top/scale_of_screen[n]); - W = int((work_area[n].right - work_area[n].left)/scale_of_screen[n]); - H = int((work_area[n].bottom - work_area[n].top)/scale_of_screen[n]); -} - - -void Fl_WinAPI_Screen_Driver::screen_xywh(int &X, int &Y, int &W, int &H, int n) -{ - if (num_screens < 0) init(); - - if ((n < 0) || (n >= num_screens)) - n = 0; - - if (num_screens > 0) { - X = int(screens[n].left/scale_of_screen[n]); - Y = int(screens[n].top/scale_of_screen[n]); - W = int((screens[n].right - screens[n].left)/scale_of_screen[n]); - H = int((screens[n].bottom - screens[n].top)/scale_of_screen[n]); - } else { - /* Fallback if something is broken... */ - X = 0; - Y = 0; - W = GetSystemMetrics(SM_CXSCREEN); - H = GetSystemMetrics(SM_CYSCREEN); - } -} - - -void Fl_WinAPI_Screen_Driver::screen_xywh_unscaled(int &X, int &Y, int &W, int &H, int n) { - if (num_screens < 0) init(); - if ((n < 0) || (n >= num_screens)) n = 0; - X = screens[n].left; - Y = screens[n].top; - W = screens[n].right - screens[n].left; - H = screens[n].bottom - screens[n].top; -}; - - -void Fl_WinAPI_Screen_Driver::screen_dpi(float &h, float &v, int n) -{ - if (num_screens < 0) init(); - h = v = 0.0f; - if (n >= 0 && n < num_screens) { - h = float(dpi[n][0]); - v = float(dpi[n][1]); - } -} - - -int Fl_WinAPI_Screen_Driver::x() -{ - /*RECT r; - - SystemParametersInfo(SPI_GETWORKAREA, 0, &r, 0); - return r.left;*/ - int X, Y, W, H; - screen_work_area(X, Y, W, H, 0); - return X; -} - - -int Fl_WinAPI_Screen_Driver::y() -{ - /*RECT r; - - SystemParametersInfo(SPI_GETWORKAREA, 0, &r, 0); - return r.top;*/ - int X, Y, W, H; - screen_work_area(X, Y, W, H, 0); - return Y; -} - - -int Fl_WinAPI_Screen_Driver::h() -{ - /*RECT r; - - SystemParametersInfo(SPI_GETWORKAREA, 0, &r, 0); - return r.bottom - r.top;*/ - int X, Y, W, H; - screen_work_area(X, Y, W, H, 0); - return H; -} - - -int Fl_WinAPI_Screen_Driver::w() -{ - /*RECT r; - - SystemParametersInfo(SPI_GETWORKAREA, 0, &r, 0); - return r.right - r.left;*/ - int X, Y, W, H; - screen_work_area(X, Y, W, H, 0); - return W; -} - - -// Implements fl_beep(). See documentation in src/fl_ask.cxx. -void Fl_WinAPI_Screen_Driver::beep(int type) -{ - switch (type) { - case FL_BEEP_QUESTION : - case FL_BEEP_PASSWORD : - MessageBeep(MB_ICONQUESTION); - break; - case FL_BEEP_MESSAGE : - MessageBeep(MB_ICONASTERISK); - break; - case FL_BEEP_NOTIFICATION : - MessageBeep(MB_ICONASTERISK); - break; - case FL_BEEP_ERROR : - MessageBeep(MB_ICONERROR); - break; - default : - MessageBeep(0xFFFFFFFF); - break; - } -} - - -void Fl_WinAPI_Screen_Driver::flush() -{ - GdiFlush(); -} - - -extern void fl_fix_focus(); // in Fl.cxx - -// We have to keep track of whether we have captured the mouse, since -// Windows shows little respect for this... Grep for fl_capture to -// see where and how this is used. -extern HWND fl_capture; - - -void Fl_WinAPI_Screen_Driver::grab(Fl_Window* win) -{ - if (win) { - if (!Fl::grab_) { - SetActiveWindow(fl_capture = fl_xid(Fl::first_window())); - SetCapture(fl_capture); - } - Fl::grab_ = win; - } else { - if (Fl::grab_) { - fl_capture = 0; - ReleaseCapture(); - Fl::grab_ = 0; - fl_fix_focus(); - } - } -} - - -static void set_selection_color(uchar r, uchar g, uchar b) -{ - Fl::set_color(FL_SELECTION_COLOR,r,g,b); -} - - -static void getsyscolor(int what, const char* arg, void (*func)(uchar,uchar,uchar)) -{ - if (arg) { - uchar r,g,b; - if (!fl_parse_color(arg, r,g,b)) - Fl::error("Unknown color: %s", arg); - else - func(r,g,b); - } else { - DWORD x = GetSysColor(what); - func(uchar(x&255), uchar(x>>8), uchar(x>>16)); - } -} - - -void Fl_WinAPI_Screen_Driver::get_system_colors() -{ - if (!bg2_set) getsyscolor(COLOR_WINDOW, fl_bg2,Fl::background2); - if (!fg_set) getsyscolor(COLOR_WINDOWTEXT, fl_fg, Fl::foreground); - if (!bg_set) getsyscolor(COLOR_BTNFACE, fl_bg, Fl::background); - getsyscolor(COLOR_HIGHLIGHT, 0, set_selection_color); -} - - -int Fl_WinAPI_Screen_Driver::compose(int &del) { - unsigned char ascii = (unsigned char)Fl::e_text[0]; - /* WARNING: The [AltGr] key on international keyboards sets FL_CTRL. - 2nd line in condition below asks [AltGr] key (a.k.a. VK_RMENU) not to be down. - */ - int condition = (Fl::e_state & (FL_ALT | FL_META | FL_CTRL)) && !(ascii & 128) && - !( (Fl::e_state & FL_CTRL) && (GetAsyncKeyState(VK_RMENU) >> 15) ); - if (condition) { // this stuff is to be treated as a function key - del = 0; - return 0; - } - del = Fl::compose_state; - Fl::compose_state = 0; - // Only insert non-control characters: - if ( (!Fl::compose_state) && ! (ascii & ~31 && ascii!=127)) { - return 0; - } - return 1; -} - - -Fl_RGB_Image * // O - image or NULL if failed -Fl_WinAPI_Screen_Driver::read_win_rectangle( - int X, // I - Left position - int Y, // I - Top position - int w, // I - Width of area to read - int h, // I - Height of area to read - Fl_Window *win, // I - window to capture from or NULL to capture from current offscreen - bool may_capture_subwins, bool *did_capture_subwins) -{ - float s = Fl_Surface_Device::surface()->driver()->scale(); - int ws, hs; - if (int(s) == s) { ws = w * int(s); hs = h * int(s);} - else { - ws = Fl_Scalable_Graphics_Driver::floor(X+w, s) - Fl_Scalable_Graphics_Driver::floor(X, s), - hs = Fl_Scalable_Graphics_Driver::floor(Y+h, s) - Fl_Scalable_Graphics_Driver::floor(Y, s); - if (ws < 1) ws = 1; - if (hs < 1) hs = 1; - } - return read_win_rectangle_unscaled(Fl_Scalable_Graphics_Driver::floor(X, s), Fl_Scalable_Graphics_Driver::floor(Y, s), ws, hs, win); -} - -Fl_RGB_Image *Fl_WinAPI_Screen_Driver::read_win_rectangle_unscaled(int X, int Y, int w, int h, Fl_Window *win) -{ - // Depth of image is always 3 here - - // Grab all of the pixels in the image... - - // Assure that we are not trying to read non-existing data. If it is so, the - // function should still work, but the out-of-bounds part of the image is - // untouched (initialized with the alpha value or 0 (black), resp.). - - int ww = w; // We need the original width for output data line size - - int shift_x = 0; // X target shift if X modified - int shift_y = 0; // Y target shift if X modified - - if (X < 0) { - shift_x = -X; - w += X; - X = 0; - } - if (Y < 0) { - shift_y = -Y; - h += Y; - Y = 0; - } - - if (h < 1 || w < 1) return 0; // nothing to copy - - // Allocate and initialize the image data array - size_t arraySize = ((size_t)w * h) * 3; - uchar *p = new uchar[arraySize]; - memset(p, 0, arraySize); - - int line_size = ((3*w+3)/4) * 4; // each line is aligned on a DWORD (4 bytes) - uchar *dib = new uchar[line_size*h]; // create temporary buffer to read DIB - - // fill in bitmap info for GetDIBits - - BITMAPINFO bi; - bi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER); - bi.bmiHeader.biWidth = w; - bi.bmiHeader.biHeight = -h; // negative => top-down DIB - bi.bmiHeader.biPlanes = 1; - bi.bmiHeader.biBitCount = 24; // 24 bits RGB - bi.bmiHeader.biCompression = BI_RGB; - bi.bmiHeader.biSizeImage = 0; - bi.bmiHeader.biXPelsPerMeter = 0; - bi.bmiHeader.biYPelsPerMeter = 0; - bi.bmiHeader.biClrUsed = 0; - bi.bmiHeader.biClrImportant = 0; - - // copy bitmap from original DC (Window, Fl_Offscreen, ...) - if (win && Fl_Window::current() != win) win->make_current(); - HDC gc = (HDC)fl_graphics_driver->gc(); - HDC hdc = CreateCompatibleDC(gc); - HBITMAP hbm = CreateCompatibleBitmap(gc,w,h); - - int save_dc = SaveDC(hdc); // save context for cleanup - SelectObject(hdc,hbm); // select bitmap - BitBlt(hdc,0,0,w,h,gc,X,Y,SRCCOPY); // copy image section to DDB - - // copy RGB image data to the allocated DIB - - GetDIBits(hdc, hbm, 0, h, dib, (BITMAPINFO *)&bi, DIB_RGB_COLORS); - - // finally copy the image data to the user buffer - - for (int j = 0; j<h; j++) { - const uchar *src = dib + j * line_size; // source line - uchar *tg = p + (j + shift_y) * 3 * ww + shift_x * 3; // target line - for (int i = 0; i<w; i++) { - uchar b = *src++; - uchar g = *src++; - *tg++ = *src++; // R - *tg++ = g; // G - *tg++ = b; // B - } - } - - // free used GDI and other structures - - RestoreDC(hdc,save_dc); // reset DC - DeleteDC(hdc); - DeleteObject(hbm); - delete[] dib; // delete DIB temporary buffer - - Fl_RGB_Image *rgb = new Fl_RGB_Image(p, w, h, 3); - rgb->alloc_array = 1; - return rgb; -} - - -void Fl_WinAPI_Screen_Driver::offscreen_size(Fl_Offscreen off, int &width, int &height) -{ - BITMAP bitmap; - if ( GetObject((HBITMAP)off, sizeof(BITMAP), &bitmap) ) { - width = bitmap.bmWidth; - height = bitmap.bmHeight; - } -} - -//NOTICE: returns -1 if x,y is not in any screen -int Fl_WinAPI_Screen_Driver::screen_num_unscaled(int x, int y) -{ - int screen = -1; - if (num_screens < 0) init(); - for (int i = 0; i < num_screens; i ++) { - if (x >= screens[i].left && x < screens[i].right && - y >= screens[i].top && y < screens[i].bottom) { - screen = i; - break; - } - } - return screen; -} - - -float Fl_WinAPI_Screen_Driver::base_scale(int numscreen) { - return float(dpi[numscreen][0] / 96.); -} |