Mercurial > sdl-ios-xcode
annotate src/video/wincommon/SDL_sysmouse.c @ 1558:b46bb79cc197
Fixed bug #113:
Date: Sat, 16 Apr 2005 08:39:22 +1000
From: "Eric Mangold"
Subject: [SDL] Window manager does not show SDL window titles
Hello,
I have an issue with SDL-using applications and the sawfish window manager.
The problem is that SDL windows do not show the window caption. My gnome
panel *does* show the window name, but the actual sawfish window frame
shows no caption at all. All other non-SDL applications that I use work
fine.
I tried a couple other window managers, and they *were* able to show the
SDL window captions correctly. Though there many be other WMs that can't.
I believe the problem is that SDL is using the UTF8_STRING type for the
window's WM_NAME and WM_ICON properties. In fact, WM_NAME and WM_ICON are
supposed to set to a TEXT type, usually STRING (ISO 8859-1).
The property names _NET_WM_NAME and _NET_WM_ICON_NAME should be used to
store the UTF8_STRING versions of the window title and icon name.
You can see the properties I refer to with a command like this:
xprop|grep -e "WM.*NAME"
Please note the freedesktop.org standard:
http://standards.freedesktop.org/wm-spec/wm-spec-1.3.html#id2506954
This page talks a little bit about the history of these properties. Just
search down the page for "WM_NAME".
http://www.cl.cam.ac.uk/~mgk25/unicode.html
Please let me know if I can be of any assistance in resolving this issue.
Thanks,
Eric Mangold
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 20 Mar 2006 07:31:36 +0000 |
| parents | 4aac8563c296 |
| children | 782fd950bd46 c121d94672cb a1b03ba2fcd0 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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3 Copyright (C) 1997-2006 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_mouse.h" | |
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28 #include "../../events/SDL_events_c.h" |
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29 #include "../SDL_cursor_c.h" |
| 0 | 30 #include "SDL_sysmouse_c.h" |
| 31 #include "SDL_lowvideo.h" | |
| 32 | |
| 33 #ifdef _WIN32_WCE | |
| 34 #define USE_STATIC_CURSOR | |
| 35 #endif | |
| 36 | |
| 37 HCURSOR SDL_hcursor = NULL; /* Exported for SDL_eventloop.c */ | |
| 38 | |
| 39 /* The implementation dependent data for the window manager cursor */ | |
| 40 /* For some reason when creating a windows cursor, the ands and xors memory | |
| 41 is not copied, so we need to keep track of it and free it when we are done | |
| 42 with the cursor. If we free the memory prematurely, the app crashes. :-} | |
| 43 */ | |
| 44 struct WMcursor { | |
| 45 HCURSOR curs; | |
| 46 #ifndef USE_STATIC_CURSOR | |
| 47 Uint8 *ands; | |
| 48 Uint8 *xors; | |
| 49 #endif | |
| 50 }; | |
| 51 | |
| 52 /* Convert bits to padded bytes */ | |
| 53 #define PAD_BITS(bits) ((bits+7)/8) | |
| 54 | |
| 55 #ifdef CURSOR_DEBUG | |
| 56 static void PrintBITMAP(FILE *out, char *bits, int w, int h) | |
| 57 { | |
| 58 int i; | |
| 59 unsigned char ch; | |
| 60 | |
| 61 while ( h-- > 0 ) { | |
| 62 for ( i=0; i<w; ++i ) { | |
| 63 if ( (i%8) == 0 ) | |
| 64 ch = *bits++; | |
| 65 if ( ch&0x80 ) | |
| 66 fprintf(out, "X"); | |
| 67 else | |
| 68 fprintf(out, " "); | |
| 69 ch <<= 1; | |
| 70 } | |
| 71 fprintf(out, "\n"); | |
| 72 } | |
| 73 } | |
| 74 #endif | |
| 75 | |
| 76 #ifndef USE_STATIC_CURSOR | |
| 77 /* Local functions to convert the SDL cursor mask into Windows format */ | |
| 78 static void memnot(Uint8 *dst, Uint8 *src, int len) | |
| 79 { | |
| 80 while ( len-- > 0 ) | |
| 81 *dst++ = ~*src++; | |
| 82 } | |
| 83 static void memxor(Uint8 *dst, Uint8 *src1, Uint8 *src2, int len) | |
| 84 { | |
| 85 while ( len-- > 0 ) | |
| 86 *dst++ = (*src1++)^(*src2++); | |
| 87 } | |
| 88 #endif /* !USE_STATIC_CURSOR */ | |
| 89 | |
| 90 void WIN_FreeWMCursor(_THIS, WMcursor *cursor) | |
| 91 { | |
| 92 #ifndef USE_STATIC_CURSOR | |
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Fixed cursor resource leak in Windows (thanks Huib-Jan Imbens!)
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93 if ( cursor->curs == GetCursor() ) |
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94 SetCursor(NULL); |
| 0 | 95 if ( cursor->curs != NULL ) |
| 96 DestroyCursor(cursor->curs); | |
| 97 if ( cursor->ands != NULL ) | |
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98 SDL_free(cursor->ands); |
| 0 | 99 if ( cursor->xors != NULL ) |
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100 SDL_free(cursor->xors); |
| 0 | 101 #endif /* !USE_STATIC_CURSOR */ |
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102 SDL_free(cursor); |
| 0 | 103 } |
| 104 | |
| 105 WMcursor *WIN_CreateWMCursor(_THIS, | |
| 106 Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y) | |
| 107 { | |
| 108 #ifdef USE_STATIC_CURSOR | |
| 109 WMcursor *cursor; | |
| 110 | |
| 111 /* Allocate the cursor */ | |
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112 cursor = (WMcursor *)SDL_malloc(sizeof(*cursor)); |
| 0 | 113 if ( cursor ) { |
| 114 cursor->curs = LoadCursor(NULL, IDC_ARROW); | |
| 115 } | |
| 116 return(cursor); | |
| 117 #else | |
| 118 WMcursor *cursor; | |
| 119 int allowed_x; | |
| 120 int allowed_y; | |
| 121 int run, pad, i; | |
| 122 Uint8 *aptr, *xptr; | |
| 123 | |
| 124 /* Check to make sure the cursor size is okay */ | |
| 125 allowed_x = GetSystemMetrics(SM_CXCURSOR); | |
| 126 allowed_y = GetSystemMetrics(SM_CYCURSOR); | |
| 127 if ( (w > allowed_x) || (h > allowed_y) ) { | |
| 128 SDL_SetError("Only cursors of dimension (%dx%d) are allowed", | |
| 129 allowed_x, allowed_y); | |
| 130 return(NULL); | |
| 131 } | |
| 132 | |
| 133 /* Allocate the cursor */ | |
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134 cursor = (WMcursor *)SDL_malloc(sizeof(*cursor)); |
| 0 | 135 if ( cursor == NULL ) { |
| 136 SDL_SetError("Out of memory"); | |
| 137 return(NULL); | |
| 138 } | |
| 139 cursor->curs = NULL; | |
| 140 cursor->ands = NULL; | |
| 141 cursor->xors = NULL; | |
| 142 | |
| 143 /* Pad out to the normal cursor size */ | |
| 144 run = PAD_BITS(w); | |
| 145 pad = PAD_BITS(allowed_x)-run; | |
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146 aptr = cursor->ands = (Uint8 *)SDL_malloc((run+pad)*allowed_y); |
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147 xptr = cursor->xors = (Uint8 *)SDL_malloc((run+pad)*allowed_y); |
| 0 | 148 if ( (aptr == NULL) || (xptr == NULL) ) { |
| 149 WIN_FreeWMCursor(NULL, cursor); | |
| 150 SDL_OutOfMemory(); | |
| 151 return(NULL); | |
| 152 } | |
| 153 for ( i=0; i<h; ++i ) { | |
| 154 memxor(xptr, data, mask, run); | |
| 155 xptr += run; | |
| 156 data += run; | |
| 157 memnot(aptr, mask, run); | |
| 158 mask += run; | |
| 159 aptr += run; | |
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160 SDL_memset(xptr, 0, pad); |
| 0 | 161 xptr += pad; |
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162 SDL_memset(aptr, ~0, pad); |
| 0 | 163 aptr += pad; |
| 164 } | |
| 165 pad += run; | |
| 166 for ( ; i<allowed_y; ++i ) { | |
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167 SDL_memset(xptr, 0, pad); |
| 0 | 168 xptr += pad; |
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169 SDL_memset(aptr, ~0, pad); |
| 0 | 170 aptr += pad; |
| 171 } | |
| 172 | |
| 173 /* Create the cursor */ | |
| 174 cursor->curs = CreateCursor( | |
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175 (HINSTANCE)GetWindowLongPtr(SDL_Window, GWLP_HINSTANCE), |
| 0 | 176 hot_x, hot_y, allowed_x, allowed_y, |
| 177 cursor->ands, cursor->xors); | |
| 178 if ( cursor->curs == NULL ) { | |
| 179 WIN_FreeWMCursor(NULL, cursor); | |
| 180 SDL_SetError("Windows couldn't create the requested cursor"); | |
| 181 return(NULL); | |
| 182 } | |
| 183 return(cursor); | |
| 184 #endif /* USE_STATIC_CURSOR */ | |
| 185 } | |
| 186 | |
| 187 int WIN_ShowWMCursor(_THIS, WMcursor *cursor) | |
| 188 { | |
| 189 POINT mouse_pos; | |
| 190 | |
| 191 /* The fullscreen cursor must be done in software with DirectInput */ | |
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192 if ( !this->screen || DDRAW_FULLSCREEN() ) { |
| 0 | 193 return(0); |
| 194 } | |
| 195 | |
| 196 /* Set the window cursor to our cursor, if applicable */ | |
| 197 if ( cursor != NULL ) { | |
| 198 SDL_hcursor = cursor->curs; | |
| 199 } else { | |
| 200 SDL_hcursor = NULL; | |
| 201 } | |
| 202 GetCursorPos(&mouse_pos); | |
| 203 if ( PtInRect(&SDL_bounds, mouse_pos) ) { | |
| 204 SetCursor(SDL_hcursor); | |
| 205 } | |
| 206 return(1); | |
| 207 } | |
| 208 | |
| 209 void WIN_WarpWMCursor(_THIS, Uint16 x, Uint16 y) | |
| 210 { | |
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211 if ( DDRAW_FULLSCREEN() ) { |
| 0 | 212 SDL_PrivateMouseMotion(0, 0, x, y); |
| 213 } else if ( mouse_relative) { | |
| 214 /* RJR: March 28, 2000 | |
| 215 leave physical cursor at center of screen if | |
| 216 mouse hidden and grabbed */ | |
| 217 SDL_PrivateMouseMotion(0, 0, x, y); | |
| 218 } else { | |
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219 POINT pt; |
| 0 | 220 pt.x = x; |
| 221 pt.y = y; | |
| 222 ClientToScreen(SDL_Window, &pt); | |
| 223 SetCursorPos(pt.x, pt.y); | |
| 224 } | |
| 225 } | |
| 226 | |
| 227 /* Update the current mouse state and position */ | |
| 228 void WIN_UpdateMouse(_THIS) | |
| 229 { | |
| 230 RECT rect; | |
| 231 POINT pt; | |
| 232 | |
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233 if ( ! DDRAW_FULLSCREEN() ) { |
| 0 | 234 GetClientRect(SDL_Window, &rect); |
| 235 GetCursorPos(&pt); | |
| 236 MapWindowPoints(NULL, SDL_Window, &pt, 1); | |
| 237 if (PtInRect(&rect, pt) && (WindowFromPoint(pt) == SDL_Window)){ | |
| 238 SDL_PrivateAppActive(1, SDL_APPMOUSEFOCUS); | |
| 239 SDL_PrivateMouseMotion(0,0, (Sint16)pt.x, (Sint16)pt.y); | |
| 240 } else { | |
| 241 SDL_PrivateAppActive(0, SDL_APPMOUSEFOCUS); | |
| 242 } | |
| 243 } | |
| 244 } | |
| 245 | |
| 246 /* Check to see if we need to enter or leave mouse relative mode */ | |
| 247 void WIN_CheckMouseMode(_THIS) | |
| 248 { | |
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249 #ifndef _WIN32_WCE |
| 0 | 250 /* If the mouse is hidden and input is grabbed, we use relative mode */ |
| 251 if ( !(SDL_cursorstate & CURSOR_VISIBLE) && | |
| 252 (this->input_grab != SDL_GRAB_OFF) ) { | |
| 253 mouse_relative = 1; | |
| 254 } else { | |
| 255 mouse_relative = 0; | |
| 256 } | |
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257 #else |
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258 mouse_relative = 0; |
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259 #endif |
| 0 | 260 } |