1 /*
2 * freeglut_callbacks.c
3 *
4 * The callbacks setting methods.
5 *
6 * Copyright (c) 1999-2000 Pawel W. Olszta. All Rights Reserved.
7 * Written by Pawel W. Olszta, <olszta@sourceforge.net>
8 * Creation date: Fri Dec 3 1999
9 *
10 * Permission is hereby granted, free of charge, to any person obtaining a
11 * copy of this software and associated documentation files (the "Software"),
12 * to deal in the Software without restriction, including without limitation
13 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
14 * and/or sell copies of the Software, and to permit persons to whom the
15 * Software is furnished to do so, subject to the following conditions:
16 *
17 * The above copyright notice and this permission notice shall be included
18 * in all copies or substantial portions of the Software.
19 *
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
21 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
23 * PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
24 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
25 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 */
27
28 #ifdef HAVE_CONFIG_H
29 #include "config.h"
30 #endif
31
32 #include "../include/GL/freeglut.h"
33 #include "freeglut_internal.h"
34
35
36 /* -- INTERFACE FUNCTIONS -------------------------------------------------- */
37
38 /*
39 * All of the callbacks setting methods can be generalized to this:
40 */
41 #define SET_CALLBACK(a) \
42 if( fgStructure.Window == NULL ) \
43 return; \
44 FETCH_WCB( ( *( fgStructure.Window ) ), a ) = callback;
45
glutDropFilesFunc(void (* callback)(int,int,const char *,int))46 void glutDropFilesFunc(void (*callback)(int, int, const char*, int))
47 {
48 SET_CALLBACK( DropFiles );
49
50 }
51
52 /*
53 * Sets the Display callback for the current window
54 */
glutDisplayFunc(void (* callback)(void))55 void glutDisplayFunc( void (* callback)( void ) )
56 {
57 if( !callback )
58 fgError( "Fatal error in program. NULL display callback not "
59 "permitted in GLUT 3.0+ or freeglut 2.0.1+\n" );
60 SET_CALLBACK( Display );
61 fgStructure.Window->State.Redisplay = GL_TRUE;
62 }
63
64 /*
65 * Sets the Reshape callback for the current window
66 */
glutReshapeFunc(void (* callback)(int,int))67 void glutReshapeFunc( void (* callback)( int, int ) )
68 {
69 SET_CALLBACK( Reshape );
70 }
71
72 /*
73 * Sets the Keyboard callback for the current window
74 */
glutKeyboardFunc(void (* callback)(unsigned char,int,int))75 void glutKeyboardFunc( void (* callback)
76 ( unsigned char, int, int ) )
77 {
78 SET_CALLBACK( Keyboard );
79 }
80
81 /*
82 * Sets the Special callback for the current window
83 */
glutSpecialFunc(void (* callback)(int,int,int))84 void glutSpecialFunc( void (* callback)( int, int, int ) )
85 {
86 SET_CALLBACK( Special );
87 }
88
89 /*
90 * Sets the global idle callback
91 */
glutIdleFunc(void (* callback)(void))92 void glutIdleFunc( void (* callback)( void ) )
93 {
94 freeglut_assert_ready;
95 fgState.IdleCallback = callback;
96 }
97
98 /*
99 * Sets the Timer callback for the current window
100 */
glutTimerFunc(unsigned int timeOut,void (* callback)(int),int timerID)101 void glutTimerFunc( unsigned int timeOut, void (* callback)( int ),
102 int timerID )
103 {
104 SFG_Timer *timer, *node;
105
106 freeglut_assert_ready;
107
108 if( (timer = fgState.FreeTimers.Last) )
109 {
110 fgListRemove( &fgState.FreeTimers, &timer->Node );
111 }
112 else
113 {
114 if( ! (timer = malloc(sizeof(SFG_Timer))) )
115 fgError( "Fatal error: "
116 "Memory allocation failure in glutTimerFunc()\n" );
117 }
118
119 timer->Callback = callback;
120 timer->ID = timerID;
121 timer->TriggerTime = fgElapsedTime() + timeOut;
122
123 for( node = fgState.Timers.First; node; node = node->Node.Next )
124 {
125 if( node->TriggerTime > timer->TriggerTime )
126 break;
127 }
128
129 fgListInsert( &fgState.Timers, &node->Node, &timer->Node );
130 }
131
132 /*
133 * Sets the Visibility callback for the current window.
134 */
fghVisibility(int status)135 static void fghVisibility( int status )
136 {
137 int glut_status = GLUT_VISIBLE;
138
139 freeglut_assert_ready;
140 freeglut_return_if_fail( fgStructure.Window );
141
142 if( ( GLUT_HIDDEN == status ) || ( GLUT_FULLY_COVERED == status ) )
143 glut_status = GLUT_NOT_VISIBLE;
144 INVOKE_WCB( *( fgStructure.Window ), Visibility, ( glut_status ) );
145 }
146
glutVisibilityFunc(void (* callback)(int))147 void glutVisibilityFunc( void (* callback)( int ) )
148 {
149 SET_CALLBACK( Visibility );
150
151 if( callback )
152 glutWindowStatusFunc( fghVisibility );
153 else
154 glutWindowStatusFunc( NULL );
155 }
156
157 /*
158 * Sets the keyboard key release callback for the current window
159 */
glutKeyboardUpFunc(void (* callback)(unsigned char,int,int))160 void glutKeyboardUpFunc( void (* callback)
161 ( unsigned char, int, int ) )
162 {
163 SET_CALLBACK( KeyboardUp );
164 }
165
166 /*
167 * Sets the special key release callback for the current window
168 */
glutSpecialUpFunc(void (* callback)(int,int,int))169 void glutSpecialUpFunc( void (* callback)( int, int, int ) )
170 {
171 SET_CALLBACK( SpecialUp );
172 }
173
174 /*
175 * Sets the joystick callback and polling rate for the current window
176 */
glutJoystickFunc(void (* callback)(unsigned int,int,int,int),int pollInterval)177 void glutJoystickFunc( void (* callback)
178 ( unsigned int, int, int, int ),
179 int pollInterval )
180 {
181 SET_CALLBACK( Joystick );
182 fgStructure.Window->State.JoystickPollRate = pollInterval;
183
184 fgStructure.Window->State.JoystickLastPoll =
185 fgElapsedTime() - fgStructure.Window->State.JoystickPollRate;
186
187 if( fgStructure.Window->State.JoystickLastPoll < 0 )
188 fgStructure.Window->State.JoystickLastPoll = 0;
189 }
190
191 /*
192 * Sets the mouse callback for the current window
193 */
glutMouseFunc(void (* callback)(int,int,int,int))194 void glutMouseFunc( void (* callback)( int, int, int, int ) )
195 {
196 SET_CALLBACK( Mouse );
197 }
198
199 /*
200 * Sets the mouse wheel callback for the current window
201 */
glutMouseWheelFunc(void (* callback)(int,int,int,int))202 void glutMouseWheelFunc( void (* callback)( int, int, int, int ) )
203 {
204 SET_CALLBACK( MouseWheel );
205 }
206
207 /*
208 * Sets the mouse motion callback for the current window (one or more buttons
209 * are pressed)
210 */
glutMotionFunc(void (* callback)(int,int))211 void glutMotionFunc( void (* callback)( int, int ) )
212 {
213 SET_CALLBACK( Motion );
214 }
215
216 /*
217 * Sets the passive mouse motion callback for the current window (no mouse
218 * buttons are pressed)
219 */
glutPassiveMotionFunc(void (* callback)(int,int))220 void glutPassiveMotionFunc( void (* callback)( int, int ) )
221 {
222 SET_CALLBACK( Passive );
223 }
224
225 /*
226 * Window mouse entry/leave callback
227 */
glutEntryFunc(void (* callback)(int))228 void glutEntryFunc( void (* callback)( int ) )
229 {
230 SET_CALLBACK( Entry );
231 }
232
233 /*
234 * Window destruction callbacks
235 */
glutCloseFunc(void (* callback)(void))236 void glutCloseFunc( void (* callback)( void ) )
237 {
238 SET_CALLBACK( Destroy );
239 }
240
glutWMCloseFunc(void (* callback)(void))241 void glutWMCloseFunc( void (* callback)( void ) )
242 {
243 glutCloseFunc( callback );
244 }
245
246 /* A. Donev: Destruction callback for menus */
glutMenuDestroyFunc(void (* callback)(void))247 void glutMenuDestroyFunc( void (* callback)( void ) )
248 {
249 if( fgStructure.Menu )
250 fgStructure.Menu->Destroy = callback;
251 }
252
253 /*
254 * Deprecated version of glutMenuStatusFunc callback setting method
255 */
glutMenuStateFunc(void (* callback)(int))256 void glutMenuStateFunc( void (* callback)( int ) )
257 {
258 freeglut_assert_ready;
259 fgState.MenuStateCallback = callback;
260 }
261
262 /*
263 * Sets the global menu status callback for the current window
264 */
glutMenuStatusFunc(void (* callback)(int,int,int))265 void glutMenuStatusFunc( void (* callback)( int, int, int ) )
266 {
267 freeglut_assert_ready;
268 fgState.MenuStatusCallback = callback;
269 }
270
271 /*
272 * Sets the overlay display callback for the current window
273 */
glutOverlayDisplayFunc(void (* callback)(void))274 void glutOverlayDisplayFunc( void (* callback)( void ) )
275 {
276 SET_CALLBACK( OverlayDisplay );
277 }
278
279 /*
280 * Sets the window status callback for the current window
281 */
glutWindowStatusFunc(void (* callback)(int))282 void glutWindowStatusFunc( void (* callback)( int ) )
283 {
284 SET_CALLBACK( WindowStatus );
285 }
286
287 /*
288 * Sets the spaceball motion callback for the current window
289 */
glutSpaceballMotionFunc(void (* callback)(int,int,int))290 void glutSpaceballMotionFunc( void (* callback)( int, int, int ) )
291 {
292 SET_CALLBACK( SpaceMotion );
293 }
294
295 /*
296 * Sets the spaceball rotate callback for the current window
297 */
glutSpaceballRotateFunc(void (* callback)(int,int,int))298 void glutSpaceballRotateFunc( void (* callback)( int, int, int ) )
299 {
300 SET_CALLBACK( SpaceRotation );
301 }
302
303 /*
304 * Sets the spaceball button callback for the current window
305 */
glutSpaceballButtonFunc(void (* callback)(int,int))306 void glutSpaceballButtonFunc( void (* callback)( int, int ) )
307 {
308 SET_CALLBACK( SpaceButton );
309 }
310
311 /*
312 * Sets the button box callback for the current window
313 */
glutButtonBoxFunc(void (* callback)(int,int))314 void glutButtonBoxFunc( void (* callback)( int, int ) )
315 {
316 SET_CALLBACK( ButtonBox );
317 }
318
319 /*
320 * Sets the dials box callback for the current window
321 */
glutDialsFunc(void (* callback)(int,int))322 void glutDialsFunc( void (* callback)( int, int ) )
323 {
324 SET_CALLBACK( Dials );
325 }
326
327 /*
328 * Sets the tablet motion callback for the current window
329 */
glutTabletMotionFunc(void (* callback)(int,int))330 void glutTabletMotionFunc( void (* callback)( int, int ) )
331 {
332 SET_CALLBACK( TabletMotion );
333 }
334
335 /*
336 * Sets the tablet buttons callback for the current window
337 */
glutTabletButtonFunc(void (* callback)(int,int,int,int))338 void glutTabletButtonFunc( void (* callback)( int, int, int, int ) )
339 {
340 SET_CALLBACK( TabletButton );
341 }
342
343 /*** END OF FILE ***/
344