Mercurial > sdl-ios-xcode
annotate src/video/wincommon/SDL_sysmouse.c @ 252:e8157fcb3114
Updated the source with the correct e-mail address
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Fri, 14 Dec 2001 12:38:15 +0000 |
parents | e30a8ce27c22 |
children | f097dba83975 |
rev | line source |
---|---|
0 | 1 /* |
2 SDL - Simple DirectMedia Layer | |
3 Copyright (C) 1997, 1998, 1999 Sam Lantinga | |
4 | |
5 This library is free software; you can redistribute it and/or | |
6 modify it under the terms of the GNU Library General Public | |
7 License as published by the Free Software Foundation; either | |
8 version 2 of the License, or (at your option) any later version. | |
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 | |
13 Library General Public License for more details. | |
14 | |
15 You should have received a copy of the GNU Library General Public | |
16 License along with this library; if not, write to the Free | |
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
18 | |
19 Sam Lantinga | |
252
e8157fcb3114
Updated the source with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
parents:
13
diff
changeset
|
20 slouken@libsdl.org |
0 | 21 */ |
22 | |
23 #ifdef SAVE_RCSID | |
24 static char rcsid = | |
25 "@(#) $Id$"; | |
26 #endif | |
27 | |
28 #include <stdlib.h> | |
29 #include <windows.h> | |
30 | |
31 #include "SDL_error.h" | |
32 #include "SDL_mouse.h" | |
33 #include "SDL_sysmouse_c.h" | |
34 #include "SDL_events_c.h" | |
35 #include "SDL_cursor_c.h" | |
36 #include "SDL_lowvideo.h" | |
37 | |
38 #ifdef _WIN32_WCE | |
39 #define USE_STATIC_CURSOR | |
40 #endif | |
41 | |
42 HCURSOR SDL_hcursor = NULL; /* Exported for SDL_eventloop.c */ | |
43 | |
44 /* The implementation dependent data for the window manager cursor */ | |
45 /* For some reason when creating a windows cursor, the ands and xors memory | |
46 is not copied, so we need to keep track of it and free it when we are done | |
47 with the cursor. If we free the memory prematurely, the app crashes. :-} | |
48 */ | |
49 struct WMcursor { | |
50 HCURSOR curs; | |
51 #ifndef USE_STATIC_CURSOR | |
52 Uint8 *ands; | |
53 Uint8 *xors; | |
54 #endif | |
55 }; | |
56 | |
57 /* Convert bits to padded bytes */ | |
58 #define PAD_BITS(bits) ((bits+7)/8) | |
59 | |
60 #ifdef CURSOR_DEBUG | |
61 static void PrintBITMAP(FILE *out, char *bits, int w, int h) | |
62 { | |
63 int i; | |
64 unsigned char ch; | |
65 | |
66 while ( h-- > 0 ) { | |
67 for ( i=0; i<w; ++i ) { | |
68 if ( (i%8) == 0 ) | |
69 ch = *bits++; | |
70 if ( ch&0x80 ) | |
71 fprintf(out, "X"); | |
72 else | |
73 fprintf(out, " "); | |
74 ch <<= 1; | |
75 } | |
76 fprintf(out, "\n"); | |
77 } | |
78 } | |
79 #endif | |
80 | |
81 #ifndef USE_STATIC_CURSOR | |
82 /* Local functions to convert the SDL cursor mask into Windows format */ | |
83 static void memnot(Uint8 *dst, Uint8 *src, int len) | |
84 { | |
85 while ( len-- > 0 ) | |
86 *dst++ = ~*src++; | |
87 } | |
88 static void memxor(Uint8 *dst, Uint8 *src1, Uint8 *src2, int len) | |
89 { | |
90 while ( len-- > 0 ) | |
91 *dst++ = (*src1++)^(*src2++); | |
92 } | |
93 #endif /* !USE_STATIC_CURSOR */ | |
94 | |
95 void WIN_FreeWMCursor(_THIS, WMcursor *cursor) | |
96 { | |
97 #ifndef USE_STATIC_CURSOR | |
98 if ( cursor->curs != NULL ) | |
99 DestroyCursor(cursor->curs); | |
100 if ( cursor->ands != NULL ) | |
101 free(cursor->ands); | |
102 if ( cursor->xors != NULL ) | |
103 free(cursor->xors); | |
104 #endif /* !USE_STATIC_CURSOR */ | |
105 free(cursor); | |
106 } | |
107 | |
108 WMcursor *WIN_CreateWMCursor(_THIS, | |
109 Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y) | |
110 { | |
111 #ifdef USE_STATIC_CURSOR | |
112 WMcursor *cursor; | |
113 | |
114 /* Allocate the cursor */ | |
115 cursor = (WMcursor *)malloc(sizeof(*cursor)); | |
116 if ( cursor ) { | |
117 cursor->curs = LoadCursor(NULL, IDC_ARROW); | |
118 } | |
119 return(cursor); | |
120 #else | |
121 WMcursor *cursor; | |
122 int allowed_x; | |
123 int allowed_y; | |
124 int run, pad, i; | |
125 Uint8 *aptr, *xptr; | |
126 | |
127 /* Check to make sure the cursor size is okay */ | |
128 allowed_x = GetSystemMetrics(SM_CXCURSOR); | |
129 allowed_y = GetSystemMetrics(SM_CYCURSOR); | |
130 if ( (w > allowed_x) || (h > allowed_y) ) { | |
131 SDL_SetError("Only cursors of dimension (%dx%d) are allowed", | |
132 allowed_x, allowed_y); | |
133 return(NULL); | |
134 } | |
135 | |
136 /* Allocate the cursor */ | |
137 cursor = (WMcursor *)malloc(sizeof(*cursor)); | |
138 if ( cursor == NULL ) { | |
139 SDL_SetError("Out of memory"); | |
140 return(NULL); | |
141 } | |
142 cursor->curs = NULL; | |
143 cursor->ands = NULL; | |
144 cursor->xors = NULL; | |
145 | |
146 /* Pad out to the normal cursor size */ | |
147 run = PAD_BITS(w); | |
148 pad = PAD_BITS(allowed_x)-run; | |
149 aptr = cursor->ands = (Uint8 *)malloc((run+pad)*allowed_y); | |
150 xptr = cursor->xors = (Uint8 *)malloc((run+pad)*allowed_y); | |
151 if ( (aptr == NULL) || (xptr == NULL) ) { | |
152 WIN_FreeWMCursor(NULL, cursor); | |
153 SDL_OutOfMemory(); | |
154 return(NULL); | |
155 } | |
156 for ( i=0; i<h; ++i ) { | |
157 memxor(xptr, data, mask, run); | |
158 xptr += run; | |
159 data += run; | |
160 memnot(aptr, mask, run); | |
161 mask += run; | |
162 aptr += run; | |
163 memset(xptr, 0, pad); | |
164 xptr += pad; | |
165 memset(aptr, ~0, pad); | |
166 aptr += pad; | |
167 } | |
168 pad += run; | |
169 for ( ; i<allowed_y; ++i ) { | |
170 memset(xptr, 0, pad); | |
171 xptr += pad; | |
172 memset(aptr, ~0, pad); | |
173 aptr += pad; | |
174 } | |
175 | |
176 /* Create the cursor */ | |
177 cursor->curs = CreateCursor( | |
178 (HINSTANCE)GetWindowLong(SDL_Window, GWL_HINSTANCE), | |
179 hot_x, hot_y, allowed_x, allowed_y, | |
180 cursor->ands, cursor->xors); | |
181 if ( cursor->curs == NULL ) { | |
182 WIN_FreeWMCursor(NULL, cursor); | |
183 SDL_SetError("Windows couldn't create the requested cursor"); | |
184 return(NULL); | |
185 } | |
186 return(cursor); | |
187 #endif /* USE_STATIC_CURSOR */ | |
188 } | |
189 | |
190 int WIN_ShowWMCursor(_THIS, WMcursor *cursor) | |
191 { | |
192 POINT mouse_pos; | |
193 | |
194 /* The fullscreen cursor must be done in software with DirectInput */ | |
13
e30a8ce27c22
Fixed double-mouse event bug on Windows using OpenGL
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
195 if ( !this->screen || DDRAW_FULLSCREEN() ) { |
0 | 196 return(0); |
197 } | |
198 | |
199 /* Set the window cursor to our cursor, if applicable */ | |
200 if ( cursor != NULL ) { | |
201 SDL_hcursor = cursor->curs; | |
202 } else { | |
203 SDL_hcursor = NULL; | |
204 } | |
205 GetCursorPos(&mouse_pos); | |
206 if ( PtInRect(&SDL_bounds, mouse_pos) ) { | |
207 SetCursor(SDL_hcursor); | |
208 } | |
209 return(1); | |
210 } | |
211 | |
212 void WIN_WarpWMCursor(_THIS, Uint16 x, Uint16 y) | |
213 { | |
214 POINT pt; | |
215 | |
13
e30a8ce27c22
Fixed double-mouse event bug on Windows using OpenGL
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
216 if ( DDRAW_FULLSCREEN() ) { |
0 | 217 x += (this->screen->offset % this->screen->pitch) / |
218 this->screen->format->BytesPerPixel; | |
219 y += (this->screen->offset / this->screen->pitch); | |
220 SDL_PrivateMouseMotion(0, 0, x, y); | |
221 } else if ( mouse_relative) { | |
222 /* RJR: March 28, 2000 | |
223 leave physical cursor at center of screen if | |
224 mouse hidden and grabbed */ | |
225 SDL_PrivateMouseMotion(0, 0, x, y); | |
226 } else { | |
227 pt.x = x; | |
228 pt.y = y; | |
229 ClientToScreen(SDL_Window, &pt); | |
230 SetCursorPos(pt.x, pt.y); | |
231 } | |
232 } | |
233 | |
234 /* Update the current mouse state and position */ | |
235 void WIN_UpdateMouse(_THIS) | |
236 { | |
237 RECT rect; | |
238 POINT pt; | |
239 | |
13
e30a8ce27c22
Fixed double-mouse event bug on Windows using OpenGL
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
240 if ( ! DDRAW_FULLSCREEN() ) { |
0 | 241 GetClientRect(SDL_Window, &rect); |
242 GetCursorPos(&pt); | |
243 MapWindowPoints(NULL, SDL_Window, &pt, 1); | |
244 if (PtInRect(&rect, pt) && (WindowFromPoint(pt) == SDL_Window)){ | |
245 SDL_PrivateAppActive(1, SDL_APPMOUSEFOCUS); | |
246 SDL_PrivateMouseMotion(0,0, (Sint16)pt.x, (Sint16)pt.y); | |
247 } else { | |
248 SDL_PrivateAppActive(0, SDL_APPMOUSEFOCUS); | |
249 } | |
250 } | |
251 } | |
252 | |
253 /* Check to see if we need to enter or leave mouse relative mode */ | |
254 void WIN_CheckMouseMode(_THIS) | |
255 { | |
256 /* If the mouse is hidden and input is grabbed, we use relative mode */ | |
257 if ( !(SDL_cursorstate & CURSOR_VISIBLE) && | |
258 (this->input_grab != SDL_GRAB_OFF) ) { | |
259 mouse_relative = 1; | |
260 } else { | |
261 mouse_relative = 0; | |
262 } | |
263 } |