Mercurial > sdl-ios-xcode
annotate src/video/wincommon/SDL_syswm.c @ 4393:9afe12fb4c41 SDL-1.2
Fixed bug #901
Tim Angus 2009-12-11 11:45:46 PST
Disable mouse event generation when state is not SDL_APPMOUSEFOCUS
If a Windows SDL application is minimised by using alt-tab, SDL_APPMOUSEFOCUS
is lost as part of the minimisation. Unfortunately, the directx driver doesn't
pay any attention to this state when generating mouse button events, so
clicking on the Desktop can cause mouse clicks in the SDL application, while
it's still minimised. The attached patch fixes this. It looks much more
complicated than it actually is due to indentation; here it is ignoring
whitespace:
tma@abraxas:~/sources/SDL-1.2-svn$ svn diff -x -b
Index: src/video/windx5/SDL_dx5events.c
===================================================================
--- src/video/windx5/SDL_dx5events.c (revision 5376)
+++ src/video/windx5/SDL_dx5events.c (working copy)
@@ -374,10 +374,9 @@
if ( !(SDL_GetAppState() & SDL_APPMOUSEFOCUS) ) {
mouse_lost = 1;
ClipCursor(NULL);
- }
-
+ } else {
/* If the mouse was lost, regain some sense of mouse state */
- if ( mouse_lost && (SDL_GetAppState() & SDL_APPMOUSEFOCUS) ) {
+ if ( mouse_lost ) {
POINT mouse_pos;
Uint8 old_state;
Uint8 new_state;
@@ -548,6 +547,7 @@
if ( xrel || yrel ) {
post_mouse_motion(1, xrel, yrel);
}
+ }
}
/* The main Win32 event handler */
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 14 Dec 2009 22:41:31 +0000 |
| parents | a1b03ba2fcd0 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
| 4159 | 3 Copyright (C) 1997-2009 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
|
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6 modify it under the terms of the GNU Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
|
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8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 9 |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
|
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13 Lesser General Public License for more details. |
| 0 | 14 |
|
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
|
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20 slouken@libsdl.org |
| 0 | 21 */ |
|
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22 #include "SDL_config.h" |
| 0 | 23 |
|
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24 #define WIN32_LEAN_AND_MEAN |
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25 #include <windows.h> |
| 0 | 26 |
| 27 #include "SDL_version.h" | |
| 28 #include "SDL_video.h" | |
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29 #include "SDL_loadso.h" |
| 0 | 30 #include "SDL_syswm.h" |
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31 #include "../SDL_pixels_c.h" |
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32 #include "../SDL_cursor_c.h" |
| 0 | 33 #include "SDL_syswm_c.h" |
|
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34 #include "SDL_wingl_c.h" |
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35 |
| 0 | 36 |
| 37 #ifdef _WIN32_WCE | |
| 38 #define DISABLE_ICON_SUPPORT | |
| 39 #endif | |
| 40 | |
| 41 /* The screen icon -- needs to be freed on SDL_VideoQuit() */ | |
| 42 HICON screen_icn = NULL; | |
| 43 | |
| 44 /* Win32 icon mask semantics are different from those of SDL: | |
| 45 SDL applies the mask to the icon and copies result to desktop. | |
| 46 Win32 applies the mask to the desktop and XORs the icon on. | |
| 47 This means that the SDL mask needs to be applied to the icon and | |
| 48 then inverted and passed to Win32. | |
| 49 */ | |
| 50 void WIN_SetWMIcon(_THIS, SDL_Surface *icon, Uint8 *mask) | |
| 51 { | |
| 52 #ifdef DISABLE_ICON_SUPPORT | |
| 53 return; | |
| 54 #else | |
| 55 SDL_Palette *pal_256; | |
| 56 SDL_Surface *icon_256; | |
| 57 Uint8 *pdata, *pwin32; | |
| 58 Uint8 *mdata, *mwin32, m = 0; | |
| 59 int icon_len; | |
| 60 int icon_plen; | |
| 61 int icon_mlen; | |
| 62 int icon_pitch; | |
| 63 int mask_pitch; | |
| 64 SDL_Rect bounds; | |
| 65 int i, skip; | |
| 66 int row, col; | |
| 67 struct /* quasi-BMP format */ Win32Icon { | |
| 68 Uint32 biSize; | |
| 69 Sint32 biWidth; | |
| 70 Sint32 biHeight; | |
| 71 Uint16 biPlanes; | |
| 72 Uint16 biBitCount; | |
| 73 Uint32 biCompression; | |
| 74 Uint32 biSizeImage; | |
| 75 Sint32 biXPelsPerMeter; | |
| 76 Sint32 biYPelsPerMeter; | |
| 77 Uint32 biClrUsed; | |
| 78 Uint32 biClrImportant; | |
| 79 struct /* RGBQUAD -- note it's BGR ordered */ { | |
| 80 Uint8 rgbBlue; | |
| 81 Uint8 rgbGreen; | |
| 82 Uint8 rgbRed; | |
| 83 Uint8 rgbReserved; | |
| 84 } biColors[256]; | |
| 85 /* Pixels: | |
| 86 Uint8 pixels[] | |
| 87 */ | |
| 88 /* Mask: | |
| 89 Uint8 mask[] | |
| 90 */ | |
| 91 } *icon_win32; | |
| 92 | |
| 93 /* Allocate the win32 bmp icon and set everything to zero */ | |
| 94 icon_pitch = ((icon->w+3)&~3); | |
| 95 mask_pitch = ((icon->w+7)/8); | |
| 96 icon_plen = icon->h*icon_pitch; | |
| 97 icon_mlen = icon->h*mask_pitch; | |
| 98 icon_len = sizeof(*icon_win32)+icon_plen+icon_mlen; | |
|
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99 icon_win32 = (struct Win32Icon *)SDL_stack_alloc(Uint8, icon_len); |
| 0 | 100 if ( icon_win32 == NULL ) { |
| 101 return; | |
| 102 } | |
|
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103 SDL_memset(icon_win32, 0, icon_len); |
| 0 | 104 |
| 105 /* Set the basic BMP parameters */ | |
| 106 icon_win32->biSize = sizeof(*icon_win32)-sizeof(icon_win32->biColors); | |
| 107 icon_win32->biWidth = icon->w; | |
| 108 icon_win32->biHeight = icon->h*2; | |
| 109 icon_win32->biPlanes = 1; | |
| 110 icon_win32->biBitCount = 8; | |
| 111 icon_win32->biSizeImage = icon_plen+icon_mlen; | |
| 112 | |
| 113 /* Allocate a standard 256 color icon surface */ | |
| 114 icon_256 = SDL_CreateRGBSurface(SDL_SWSURFACE, icon->w, icon->h, | |
| 115 icon_win32->biBitCount, 0, 0, 0, 0); | |
| 116 if ( icon_256 == NULL ) { | |
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117 SDL_stack_free(icon_win32); |
| 0 | 118 return; |
| 119 } | |
| 120 pal_256 = icon_256->format->palette; | |
| 121 if (icon->format->palette && | |
| 122 (icon->format->BitsPerPixel == icon_256->format->BitsPerPixel)){ | |
| 123 Uint8 black; | |
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124 SDL_memcpy(pal_256->colors, icon->format->palette->colors, |
| 0 | 125 pal_256->ncolors*sizeof(SDL_Color)); |
| 126 /* Make sure that 0 is black! */ | |
| 127 black = SDL_FindColor(pal_256, 0x00, 0x00, 0x00); | |
| 128 pal_256->colors[black] = pal_256->colors[0]; | |
| 129 pal_256->colors[0].r = 0x00; | |
| 130 pal_256->colors[0].g = 0x00; | |
| 131 pal_256->colors[0].b = 0x00; | |
| 132 } else { | |
| 133 SDL_DitherColors(pal_256->colors, | |
| 134 icon_256->format->BitsPerPixel); | |
| 135 } | |
| 136 | |
| 137 /* Now copy color data to the icon BMP */ | |
| 138 for ( i=0; i<(1<<icon_win32->biBitCount); ++i ) { | |
| 139 icon_win32->biColors[i].rgbRed = pal_256->colors[i].r; | |
| 140 icon_win32->biColors[i].rgbGreen = pal_256->colors[i].g; | |
| 141 icon_win32->biColors[i].rgbBlue = pal_256->colors[i].b; | |
| 142 } | |
| 143 | |
| 144 /* Convert icon to a standard surface format. This may not always | |
| 145 be necessary, as Windows supports a variety of BMP formats, but | |
| 146 it greatly simplifies our code. | |
| 147 */ | |
|
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148 bounds.x = 0; |
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149 bounds.y = 0; |
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150 bounds.w = icon->w; |
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151 bounds.h = icon->h; |
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152 if ( SDL_LowerBlit(icon, &bounds, icon_256, &bounds) < 0 ) { |
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153 SDL_stack_free(icon_win32); |
| 0 | 154 SDL_FreeSurface(icon_256); |
|
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155 return; |
| 0 | 156 } |
| 157 | |
| 158 /* Copy pixels upside-down to icon BMP, masked with the icon mask */ | |
| 159 if ( SDL_MUSTLOCK(icon_256) || (icon_256->pitch != icon_pitch) ) { | |
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160 SDL_stack_free(icon_win32); |
| 0 | 161 SDL_FreeSurface(icon_256); |
| 162 SDL_SetError("Warning: Unexpected icon_256 characteristics"); | |
| 163 return; | |
| 164 } | |
| 165 pdata = (Uint8 *)icon_256->pixels; | |
| 166 mdata = mask; | |
| 167 pwin32 = (Uint8 *)icon_win32+sizeof(*icon_win32)+icon_plen-icon_pitch; | |
| 168 skip = icon_pitch - icon->w; | |
| 169 for ( row=0; row<icon->h; ++row ) { | |
| 170 for ( col=0; col<icon->w; ++col ) { | |
| 171 if ( (col%8) == 0 ) { | |
| 172 m = *mdata++; | |
| 173 } | |
| 174 if ( (m&0x80) != 0x00 ) { | |
| 175 *pwin32 = *pdata; | |
| 176 } | |
| 177 m <<= 1; | |
| 178 ++pdata; | |
| 179 ++pwin32; | |
| 180 } | |
| 181 pdata += skip; | |
| 182 pwin32 += skip; | |
| 183 pwin32 -= 2*icon_pitch; | |
| 184 } | |
| 185 SDL_FreeSurface(icon_256); | |
| 186 | |
| 187 /* Copy mask inverted and upside-down to icon BMP */ | |
| 188 mdata = mask; | |
| 189 mwin32 = (Uint8 *)icon_win32 | |
| 190 +sizeof(*icon_win32)+icon_plen+icon_mlen-mask_pitch; | |
| 191 for ( row=0; row<icon->h; ++row ) { | |
| 192 for ( col=0; col<mask_pitch; ++col ) { | |
| 193 *mwin32++ = ~*mdata++; | |
| 194 } | |
| 195 mwin32 -= 2*mask_pitch; | |
| 196 } | |
| 197 | |
| 198 /* Finally, create the icon handle and set the window icon */ | |
| 199 screen_icn = CreateIconFromResourceEx((Uint8 *)icon_win32, icon_len, | |
| 200 TRUE, 0x00030000, icon->w, icon->h, LR_DEFAULTCOLOR); | |
| 201 if ( screen_icn == NULL ) { | |
| 202 SDL_SetError("Couldn't create Win32 icon handle"); | |
| 203 } else { | |
| 1481 | 204 SetClassLongPtr(SDL_Window, GCLP_HICON, (LONG_PTR)screen_icn); |
| 0 | 205 } |
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206 SDL_stack_free(icon_win32); |
| 0 | 207 #endif /* DISABLE_ICON_SUPPORT */ |
| 208 } | |
| 209 | |
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210 typedef BOOL (WINAPI *PtrSetWindowTextW)(HWND hWnd, LPCWSTR lpString); |
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211 |
| 0 | 212 void WIN_SetWMCaption(_THIS, const char *title, const char *icon) |
| 213 { | |
| 214 #ifdef _WIN32_WCE | |
| 215 /* WinCE uses the UNICODE version */ | |
| 1510 | 216 LPWSTR lpszW = SDL_iconv_utf8_ucs2((char *)title); |
| 0 | 217 SetWindowText(SDL_Window, lpszW); |
| 1505 | 218 SDL_free(lpszW); |
| 0 | 219 #else |
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220 Uint16 *lpsz = SDL_iconv_utf8_ucs2(title); |
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221 size_t len = WideCharToMultiByte(CP_ACP, 0, lpsz, -1, NULL, 0, NULL, NULL); |
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222 char *cvt = SDL_stack_alloc(char, len + 1); |
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223 WideCharToMultiByte(CP_ACP, 0, lpsz, -1, cvt, len, NULL, NULL); |
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224 SetWindowText(SDL_Window, cvt); |
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225 SDL_stack_free(cvt); |
| 1505 | 226 SDL_free(lpsz); |
| 0 | 227 #endif |
| 228 } | |
| 229 | |
| 230 int WIN_IconifyWindow(_THIS) | |
| 231 { | |
| 232 ShowWindow(SDL_Window, SW_MINIMIZE); | |
| 233 return(1); | |
| 234 } | |
| 235 | |
| 236 SDL_GrabMode WIN_GrabInput(_THIS, SDL_GrabMode mode) | |
| 237 { | |
| 238 if ( mode == SDL_GRAB_OFF ) { | |
| 239 ClipCursor(NULL); | |
| 240 if ( !(SDL_cursorstate & CURSOR_VISIBLE) ) { | |
| 241 /* RJR: March 28, 2000 | |
| 242 must be leaving relative mode, move mouse from | |
| 243 center of window to where it belongs ... */ | |
| 244 POINT pt; | |
| 245 int x, y; | |
| 246 SDL_GetMouseState(&x,&y); | |
| 247 pt.x = x; | |
| 248 pt.y = y; | |
| 249 ClientToScreen(SDL_Window, &pt); | |
| 250 SetCursorPos(pt.x,pt.y); | |
| 251 } | |
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252 #ifdef _WIN32_WCE |
| 3869 | 253 AllKeys(0); |
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254 #endif |
| 0 | 255 } else { |
| 256 ClipCursor(&SDL_bounds); | |
| 257 if ( !(SDL_cursorstate & CURSOR_VISIBLE) ) { | |
| 258 /* RJR: March 28, 2000 | |
| 259 must be entering relative mode, get ready by | |
| 260 moving mouse to center of window ... */ | |
| 261 POINT pt; | |
| 262 pt.x = (SDL_VideoSurface->w/2); | |
| 263 pt.y = (SDL_VideoSurface->h/2); | |
| 264 ClientToScreen(SDL_Window, &pt); | |
| 265 SetCursorPos(pt.x, pt.y); | |
| 266 } | |
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267 #ifdef _WIN32_WCE |
| 3869 | 268 AllKeys(1); |
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269 #endif |
| 0 | 270 } |
| 271 return(mode); | |
| 272 } | |
| 273 | |
| 274 /* If 'info' is the right version, this function fills it and returns 1. | |
| 275 Otherwise, in case of a version mismatch, it returns -1. | |
| 276 */ | |
| 277 int WIN_GetWMInfo(_THIS, SDL_SysWMinfo *info) | |
| 278 { | |
| 279 if ( info->version.major <= SDL_MAJOR_VERSION ) { | |
| 280 info->window = SDL_Window; | |
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281 if ( SDL_VERSIONNUM(info->version.major, |
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282 info->version.minor, |
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283 info->version.patch) >= |
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284 SDL_VERSIONNUM(1, 2, 5) ) { |
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285 #if SDL_VIDEO_OPENGL |
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286 info->hglrc = GL_hrc; |
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287 #else |
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288 info->hglrc = NULL; |
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289 #endif |
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290 } |
| 0 | 291 return(1); |
| 292 } else { | |
| 293 SDL_SetError("Application not compiled with SDL %d.%d\n", | |
| 294 SDL_MAJOR_VERSION, SDL_MINOR_VERSION); | |
| 295 return(-1); | |
| 296 } | |
| 297 } |