static int sequence_number = 0 ;
-int windows[2] = {0};
+#define CALLBACKMAKER_N_WINDOWS 4
+int windows[CALLBACKMAKER_N_WINDOWS] = {0};
/* define status vars showing whether given callback has been called for given window */
-#define CALLBACK_CALLED_VAR(name) int name##_called[2] = {0};
-#define CALLBACK_0V(name) int name##_seq[2] = {-1}; CALLBACK_CALLED_VAR(name);
-#define CALLBACK_1V(name,field) int name##_##field[2] = {-1}; CALLBACK_0V(name);
-#define CALLBACK_2V(name,field1,field2) int name##_##field2[2] = {-1}; CALLBACK_1V(name,field1);
-#define CALLBACK_3V(name,field1,field2,field3) int name##_##field3[2] = {-1}; CALLBACK_2V(name,field1,field2);
-#define CALLBACK_4V(name,field1,field2,field3,field4) int name##_##field4[2] = {-1}; CALLBACK_3V(name,field1,field2,field3);
+#define CALLBACK_CALLED_VAR(name) int name##_called[CALLBACKMAKER_N_WINDOWS] = {0};
+#define CALLBACK_0V(name) int name##_seq[CALLBACKMAKER_N_WINDOWS] = {-1}; CALLBACK_CALLED_VAR(name);
+#define CALLBACK_1V(name,field) int name##_##field[CALLBACKMAKER_N_WINDOWS] = {-1}; CALLBACK_0V(name);
+#define CALLBACK_2V(name,field1,field2) int name##_##field2[CALLBACKMAKER_N_WINDOWS] = {-1}; CALLBACK_1V(name,field1);
+#define CALLBACK_3V(name,field1,field2,field3) int name##_##field3[CALLBACKMAKER_N_WINDOWS] = {-1}; CALLBACK_2V(name,field1,field2);
+#define CALLBACK_4V(name,field1,field2,field3,field4) int name##_##field4[CALLBACKMAKER_N_WINDOWS] = {-1}; CALLBACK_3V(name,field1,field2,field3);
+#define CALLBACK_5V(name,field1,field2,field3,field4,field5) int name##_##field5[CALLBACKMAKER_N_WINDOWS] = {-1}; CALLBACK_4V(name,field1,field2,field3,field4);
CALLBACK_2V(reshape,width,height);
CALLBACK_2V(position,top,left);
-CALLBACK_3V(key,key,x,y);
-CALLBACK_3V(keyup,key,x,y);
-CALLBACK_3V(special,key,x,y);
-CALLBACK_3V(specialup,key,x,y);
CALLBACK_1V(visibility,vis);
+CALLBACK_1V(windowStatus,state);
+CALLBACK_4V(key,key,x,y,mod);
+CALLBACK_4V(keyup,key,x,y,mod);
+CALLBACK_4V(special,key,x,y,mod);
+CALLBACK_4V(specialup,key,x,y,mod);
CALLBACK_4V(joystick,a,b,c,d);
-CALLBACK_4V(mouse,button,updown,x,y);
-CALLBACK_4V(mousewheel,number,direction,x,y);
-CALLBACK_2V(motion,x,y);
-CALLBACK_2V(passivemotion,x,y);
-CALLBACK_0V(entry);
+CALLBACK_5V(mouse,button,updown,x,y,mod);
+CALLBACK_5V(mousewheel,number,direction,x,y,mod);
+CALLBACK_3V(motion,x,y,mod);
+CALLBACK_3V(passivemotion,x,y,mod);
+CALLBACK_1V(entry,state);
CALLBACK_0V(close);
/* menudestroy is registered on each menu, not a window */
int menudestroy_called = 0 ;
int window = glutGetWindow();
if (winIdx)
- (*winIdx) = window==windows[0]?0:1;
+ (*winIdx) = window==windows[0] ? 0 :
+ window==windows[1] ? 1 :
+ window==windows[2] ? 2 : 3;
return window;
}
+static void
+Mod2Text(int mods, char *text)
+{
+ if (mods&GLUT_ACTIVE_CTRL)
+ strcat(text,"CTRL");
+ if (mods&GLUT_ACTIVE_SHIFT)
+ if (text[0])
+ strcat(text,"+SHIFT");
+ else
+ strcat(text,"SHIFT");
+ if (mods&GLUT_ACTIVE_ALT)
+ if (text[0])
+ strcat(text,"+ALT");
+ else
+ strcat(text,"ALT");
+
+ if (!text[0])
+ strcat(text,"none");
+}
+
static void
Display(void)
{
glColor3ub ( 0, 0, 0 );
glRasterPos2i ( 10, glutGet ( GLUT_WINDOW_HEIGHT ) - 20 ); /* 10pt margin above 10pt letters */
+ if ( entry_called[winIdx] )
+ {
+ bitmapPrintf ( "Entry %d: %d\n", entry_seq[winIdx], entry_state[winIdx] );
+ }
+
+ if ( visibility_called[winIdx] )
+ {
+ bitmapPrintf ( "Visibility %d: %d\n", visibility_seq[winIdx], visibility_vis[winIdx] );
+ }
+
+ if ( windowStatus_called[winIdx] )
+ {
+ bitmapPrintf ( "WindowStatus %d: %d\n", windowStatus_seq[winIdx], windowStatus_state[winIdx] );
+ }
+
if ( reshape_called[winIdx] )
{
bitmapPrintf ( "Reshape %d: %d %d\n", reshape_seq[winIdx], reshape_width[winIdx], reshape_height[winIdx] );
if ( key_called[winIdx] )
{
- bitmapPrintf ( "Key %d: %d(%c) %d %d\n", key_seq[winIdx], key_key[winIdx], key_key[winIdx], key_x[winIdx], key_y[winIdx] );
+ char mods[50] = {0};
+ Mod2Text(key_mod[winIdx],mods);
+ bitmapPrintf ( "Key %d: %d(%c) %d %d (mod: %s)\n", key_seq[winIdx], key_key[winIdx], key_key[winIdx], key_x[winIdx], key_y[winIdx], mods );
}
- if ( special_called[winIdx] )
- {
- bitmapPrintf ( "Special %d: %d(%c) %d %d\n", special_seq[winIdx], special_key[winIdx], special_key[winIdx], special_x[winIdx], special_y[winIdx] );
- }
-
- if ( visibility_called[winIdx] )
+ if ( keyup_called[winIdx] )
{
- bitmapPrintf ( "Visibility %d: %d\n", visibility_seq[winIdx], visibility_vis[winIdx] );
+ char mods[50] = {0};
+ Mod2Text(keyup_mod[winIdx],mods);
+ bitmapPrintf ( "Key Up %d: %d(%c) %d %d (mod: %s)\n", keyup_seq[winIdx], keyup_key[winIdx], keyup_key[winIdx], keyup_x[winIdx], keyup_y[winIdx], mods );
}
- if ( keyup_called[winIdx] )
+ if ( special_called[winIdx] )
{
- bitmapPrintf ( "Key Up %d: %d(%c) %d %d\n", keyup_seq[winIdx], keyup_key[winIdx], keyup_key[winIdx], keyup_x[winIdx], keyup_y[winIdx] );
+ char mods[50] = {0};
+ Mod2Text(special_mod[winIdx],mods);
+ bitmapPrintf ( "Special %d: %d(%c) %d %d (mod: %s)\n", special_seq[winIdx], special_key[winIdx], special_key[winIdx], special_x[winIdx], special_y[winIdx], mods );
}
if ( specialup_called[winIdx] )
{
- bitmapPrintf ( "Special Up %d: %d(%c) %d %d\n", specialup_seq[winIdx], specialup_key[winIdx], specialup_key[winIdx], specialup_x[winIdx], specialup_y[winIdx] );
+ char mods[50] = {0};
+ Mod2Text(specialup_mod[winIdx],mods);
+ bitmapPrintf ( "Special Up %d: %d(%c) %d %d (mod: %s)\n", specialup_seq[winIdx], specialup_key[winIdx], specialup_key[winIdx], specialup_x[winIdx], specialup_y[winIdx], mods );
}
if ( joystick_called[winIdx] )
if ( mouse_called[winIdx] )
{
- bitmapPrintf ( "Mouse %d: %d %d %d %d\n", mouse_seq[winIdx], mouse_button[winIdx], mouse_updown[winIdx], mouse_x[winIdx], mouse_y[winIdx] );
+ char mods[50] = {0};
+ Mod2Text(mouse_mod[winIdx],mods);
+ bitmapPrintf ( "Mouse %d: %d %d %d %d (mod: %s)\n", mouse_seq[winIdx], mouse_button[winIdx], mouse_updown[winIdx], mouse_x[winIdx], mouse_y[winIdx], mods );
}
if ( mousewheel_called[winIdx] )
{
- bitmapPrintf ( "Mouse Wheel %d: %d %d %d %d\n", mousewheel_seq[winIdx], mousewheel_number[winIdx], mousewheel_direction[winIdx], mousewheel_x[winIdx], mousewheel_y[winIdx] );
+ char mods[50] = {0};
+ Mod2Text(mousewheel_mod[winIdx],mods);
+ bitmapPrintf ( "Mouse Wheel %d: %d %d %d %d (mod: %s)\n", mousewheel_seq[winIdx], mousewheel_number[winIdx], mousewheel_direction[winIdx], mousewheel_x[winIdx], mousewheel_y[winIdx], mods );
}
if ( motion_called[winIdx] )
{
- bitmapPrintf ( "Motion %d: %d %d\n", motion_seq[winIdx], motion_x[winIdx], motion_y[winIdx] );
+ char mods[50] = {0};
+ Mod2Text(motion_mod[winIdx],mods);
+ bitmapPrintf ( "Motion %d: %d %d (mod: %s)\n", motion_seq[winIdx], motion_x[winIdx], motion_y[winIdx], mods );
}
if ( passivemotion_called[winIdx] )
{
- bitmapPrintf ( "Passive Motion %d: %d %d\n", passivemotion_seq[winIdx], passivemotion_x[winIdx], passivemotion_y[winIdx] );
+ char mods[50] = {0};
+ Mod2Text(passivemotion_mod[winIdx],mods);
+ bitmapPrintf ( "Passive Motion %d: %d %d (mod: %s)\n", passivemotion_seq[winIdx], passivemotion_x[winIdx], passivemotion_y[winIdx], mods );
}
glMatrixMode ( GL_PROJECTION );
key_x[winIdx] = x ;
key_y[winIdx] = y ;
key_seq[winIdx] = sequence_number ;
+ key_mod[winIdx] = glutGetModifiers() ;
glutPostRedisplay () ;
}
static void
-Special(int key, int x, int y)
+KeyUp(unsigned char key, int x, int y)
{
int winIdx;
int window = getWindowAndIdx(&winIdx);
- printf ( "%6d Window %d Special Key Callback: %d %d %d\n",
+ printf ( "%6d Window %d Key Release Callback: %d %d %d\n",
++sequence_number, window, key, x, y ) ;
- special_called[winIdx] = 1 ;
- special_key[winIdx] = key ;
- special_x[winIdx] = x ;
- special_y[winIdx] = y ;
- special_seq[winIdx] = sequence_number ;
- glutPostRedisplay () ;
-}
-
-static void
-Visibility(int vis)
-{
- int winIdx;
- int window = getWindowAndIdx(&winIdx);
- printf ( "%6d Window %d Visibility Callback: %d\n",
- ++sequence_number, window, vis ) ;
- visibility_called[winIdx] = 1 ;
- visibility_vis[winIdx] = vis ;
- visibility_seq[winIdx] = sequence_number ;
+ keyup_called[winIdx] = 1 ;
+ keyup_key[winIdx] = key ;
+ keyup_x[winIdx] = x ;
+ keyup_y[winIdx] = y ;
+ keyup_seq[winIdx] = sequence_number ;
+ keyup_mod[winIdx] = glutGetModifiers() ;
glutPostRedisplay () ;
}
static void
-KeyUp(unsigned char key, int x, int y)
+Special(int key, int x, int y)
{
int winIdx;
int window = getWindowAndIdx(&winIdx);
- printf ( "%6d Window %d Key Release Callback: %d %d %d\n",
+ printf ( "%6d Window %d Special Key Callback: %d %d %d\n",
++sequence_number, window, key, x, y ) ;
- keyup_called[winIdx] = 1 ;
- keyup_key[winIdx] = key ;
- keyup_x[winIdx] = x ;
- keyup_y[winIdx] = y ;
- keyup_seq[winIdx] = sequence_number ;
+ special_called[winIdx] = 1 ;
+ special_key[winIdx] = key ;
+ special_x[winIdx] = x ;
+ special_y[winIdx] = y ;
+ special_seq[winIdx] = sequence_number ;
+ special_mod[winIdx] = glutGetModifiers() ;
glutPostRedisplay () ;
}
specialup_x[winIdx] = x ;
specialup_y[winIdx] = y ;
specialup_seq[winIdx] = sequence_number ;
+ specialup_mod[winIdx] = glutGetModifiers() ;
glutPostRedisplay () ;
}
mouse_x[winIdx] = x ;
mouse_y[winIdx] = y ;
mouse_seq[winIdx] = sequence_number ;
+ mouse_mod[winIdx] = glutGetModifiers() ;
glutPostRedisplay () ;
}
mousewheel_x[winIdx] = x ;
mousewheel_y[winIdx] = y ;
mousewheel_seq[winIdx] = sequence_number ;
+ mousewheel_mod[winIdx] = glutGetModifiers() ;
glutPostRedisplay () ;
}
motion_x[winIdx] = x ;
motion_y[winIdx] = y ;
motion_seq[winIdx] = sequence_number ;
+ motion_mod[winIdx] = glutGetModifiers() ;
glutPostRedisplay () ;
}
passivemotion_x[winIdx] = x ;
passivemotion_y[winIdx] = y ;
passivemotion_seq[winIdx] = sequence_number ;
+ passivemotion_mod[winIdx] = glutGetModifiers() ;
glutPostRedisplay () ;
}
static void
Entry(int state)
{
- int window = getWindowAndIdx(NULL);
+ int winIdx;
+ int window = getWindowAndIdx(&winIdx);
printf ( "%6d Window %d Entry Callback: %d\n",
++sequence_number, window, state ) ;
+ entry_called[winIdx] = 1 ;
+ entry_seq[winIdx] = sequence_number;
+ entry_state[winIdx] = state;
glutPostRedisplay () ;
}
}
static void
+Visibility(int vis)
+{
+ int winIdx;
+ int window = getWindowAndIdx(&winIdx);
+ printf ( "%6d Window %d Visibility Callback: %d\n",
+ ++sequence_number, window, vis ) ;
+ visibility_called[winIdx] = 1 ;
+ visibility_vis[winIdx] = vis ;
+ visibility_seq[winIdx] = sequence_number ;
+ glutPostRedisplay () ;
+}
+
+static void
WindowStatus(int state)
{
- int window = getWindowAndIdx(NULL);
+ int winIdx;
+ int window = getWindowAndIdx(&winIdx);
printf ( "%6d Window %d WindowStatus Callback: %d\n",
++sequence_number, window, state ) ;
+ windowStatus_called[winIdx] = 1 ;
+ windowStatus_state[winIdx] = state ;
+ windowStatus_seq[winIdx] = sequence_number ;
glutPostRedisplay () ;
}
++sequence_number ;
}
+static void SetWindowCallbacks( int first )
+{
+ /* All these callbacks are set for only the current window */
+ glutDisplayFunc( Display );
+ glutReshapeFunc( Reshape );
+ glutPositionFunc( Position );
+ glutKeyboardFunc( Key );
+ glutSpecialFunc( Special );
+ glutKeyboardUpFunc( KeyUp );
+ glutSpecialUpFunc( SpecialUp );
+ if (first)
+ glutJoystickFunc( Joystick, 100 );
+ glutMouseFunc ( Mouse ) ;
+ glutMouseWheelFunc ( MouseWheel ) ;
+ glutMotionFunc ( Motion ) ;
+ glutPassiveMotionFunc ( PassiveMotion ) ;
+ glutEntryFunc ( Entry ) ;
+ glutCloseFunc ( Close ) ;
+ glutOverlayDisplayFunc ( OverlayDisplay ) ;
+ glutSpaceballMotionFunc ( SpaceMotion ) ;
+ glutSpaceballRotateFunc ( SpaceRotation ) ;
+ glutSpaceballButtonFunc ( SpaceButton ) ;
+ glutButtonBoxFunc ( ButtonBox ) ;
+ glutDialsFunc ( Dials ) ;
+ glutTabletMotionFunc ( TabletMotion ) ;
+ glutTabletButtonFunc ( TabletButton ) ;
+ /* glutVisibilityFunc is deprecated in favor of glutWindowStatusFunc, which provides more detail.
+ * Setting one of these overwrites the other (see docs).
+ */
+ glutVisibilityFunc ( Visibility ); /* This will thus never be called, as glutWindowStatusFunc is set afterwards */
+ glutWindowStatusFunc ( WindowStatus ) ;
+}
+
int
main(int argc, char *argv[])
{
glutInitWindowPosition ( 140, 140 );
glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE );
glutInit(&argc, argv);
+ /* global setting: mainloop does not return when a window is closed, only returns when all windows are closed */
glutSetOption(GLUT_ACTION_ON_WINDOW_CLOSE,GLUT_ACTION_CONTINUE_EXECUTION);
+ /* global setting: repeated keys generating by keeping the key pressed down are passed on to the keyboard callback */
+ /* There are two functions to control this behavior, glutSetKeyRepeat to set it globally, and glutIgnoreKeyRepeat to set it per window.
+ * These two interact however. If key repeat is globally switched off (glutSetKeyRepeat(GLUT_KEY_REPEAT_OFF)), it cannot be overridden
+ * (switched back on) for a specific window with glutIgnoreKeyRepeat. However, if key repeat is globally switched on
+ * (glutSetKeyRepeat(GLUT_KEY_REPEAT_ON)), it can be overridden (switched off) with glutIgnoreKeyRepeat on a per-window basis. That is
+ * what we demonstrate here.
+ */
+ glutSetKeyRepeat(GLUT_KEY_REPEAT_ON);
/* Set other global callback (global as in not associated with any specific menu or window) */
glutIdleFunc ( Idle );
glutMenuStatusFunc ( MenuStatus );
glutMenuStateFunc ( MenuState ); /* Note that glutMenuStatusFunc is an enhanced version of the deprecated glutMenuStateFunc. */
+
+ /* Open first window */
windows[0] = glutCreateWindow( "Callback Demo" );
printf ( "Creating window %d as 'Callback Demo'\n", windows[0] ) ;
glClearColor(1.0, 1.0, 1.0, 1.0);
- /* callbacks and settings specific to this window */
- glutDisplayFunc( Display );
- glutReshapeFunc( Reshape );
- glutPositionFunc( Position );
- glutKeyboardFunc( Key );
- glutSpecialFunc( Special );
- glutVisibilityFunc( Visibility );
- glutKeyboardUpFunc( KeyUp );
- glutSpecialUpFunc( SpecialUp );
- glutJoystickFunc( Joystick, 100 );
- glutMouseFunc ( Mouse ) ;
- glutMouseWheelFunc ( MouseWheel ) ;
- glutMotionFunc ( Motion ) ;
- glutPassiveMotionFunc ( PassiveMotion ) ;
- glutEntryFunc ( Entry ) ;
- glutCloseFunc ( Close ) ;
- glutOverlayDisplayFunc ( OverlayDisplay ) ;
- glutWindowStatusFunc ( WindowStatus ) ;
- glutSpaceballMotionFunc ( SpaceMotion ) ;
- glutSpaceballRotateFunc ( SpaceRotation ) ;
- glutSpaceballButtonFunc ( SpaceButton ) ;
- glutButtonBoxFunc ( ButtonBox ) ;
- glutDialsFunc ( Dials ) ;
- glutTabletMotionFunc ( TabletMotion ) ;
- glutTabletButtonFunc ( TabletButton ) ;
- glutSetKeyRepeat(GLUT_KEY_REPEAT_OFF) ;
+ /* callbacks, settings and menus for this window */
+ SetWindowCallbacks( 1 );
+ glutIgnoreKeyRepeat(GL_TRUE);
+ glutSetIconTitle("Icon Test - Callback Demo");
subMenuA = glutCreateMenu( MenuCallback );
glutAddMenuEntry( "Sub menu A1 (01)", 11 );
glutAttachMenu( GLUT_LEFT_BUTTON );
- glutInitWindowPosition ( 140+500+2*glutGet(GLUT_WINDOW_BORDER_WIDTH), 140 );
+
/* Position second window right next to the first */
+ glutInitWindowPosition ( 140+500+2*glutGet(GLUT_WINDOW_BORDER_WIDTH), 140 );
+ glutInitWindowSize(600, 600);
windows[1] = glutCreateWindow( "Second Window" );
printf ( "Creating window %d as 'Second Window'\n", windows[1] ) ;
glClearColor(1.0, 1.0, 1.0, 1.0);
- /* callbacks and settings specific to this window */
- glutDisplayFunc( Display );
- glutReshapeFunc( Reshape );
- glutPositionFunc( Position );
- glutKeyboardFunc( Key );
- glutSpecialFunc( Special );
- glutVisibilityFunc( Visibility );
- glutKeyboardUpFunc( KeyUp );
- glutSpecialUpFunc( SpecialUp );
- /* glutJoystickFunc( Joystick, 100 ); */
- glutMouseFunc ( Mouse ) ;
- glutMouseWheelFunc ( MouseWheel ) ;
- glutMotionFunc ( Motion ) ;
- glutPassiveMotionFunc ( PassiveMotion ) ;
- glutEntryFunc ( Entry ) ;
- glutCloseFunc ( Close ) ;
- glutOverlayDisplayFunc ( OverlayDisplay ) ;
- glutWindowStatusFunc ( WindowStatus ) ;
- glutSpaceballMotionFunc ( SpaceMotion ) ;
- glutSpaceballRotateFunc ( SpaceRotation ) ;
- glutSpaceballButtonFunc ( SpaceButton ) ;
- glutButtonBoxFunc ( ButtonBox ) ;
- glutDialsFunc ( Dials ) ;
- glutTabletMotionFunc ( TabletMotion ) ;
- glutTabletButtonFunc ( TabletButton ) ;
- glutSetKeyRepeat(GLUT_KEY_REPEAT_OFF) ;
+ /* callbacks, settings and menus for this window */
+ SetWindowCallbacks( 0 );
+ glutIgnoreKeyRepeat(GL_TRUE);
glutSetMenu(subMenuB);
glutAttachMenu( GLUT_RIGHT_BUTTON );
+ /* position a third window as a subwindow of the second */
+ windows[2] = glutCreateSubWindow(windows[1],0,300,600,300);
+ printf ( "Creating window %d as subwindow to 'Second Window'\n", windows[2] ) ;
+
+ glClearColor(0.7f, 0.7f, 0.7f, 1.0);
+
+ /* callbacks, settings and menus for this window */
+ SetWindowCallbacks( 0 );
+ glutSetCursor(GLUT_CURSOR_CROSSHAIR); /* Cursors are per window */
+
+ glutSetMenu(subMenuA);
+ glutAttachMenu( GLUT_RIGHT_BUTTON );
+
+
+ /* position a fourth window as a subsubwindow (grandchild) of the second */
+ windows[3] = glutCreateSubWindow(windows[2],300,0,300,300);
+ printf ( "Creating window %d as subsubwindow to 'Second Window'\n", windows[3] ) ;
+
+ glClearColor(0.4f, 0.4f, 0.4f, 1.0);
+
+ /* callbacks and menus for this window */
+ SetWindowCallbacks( 0 );
+ glutSetCursor(GLUT_CURSOR_INHERIT); /* Inherit cursor look from parent (this is default on window creation) - comment the below to see in action */
+ glutSetCursor(GLUT_CURSOR_CYCLE);
+
+
printf ( "Please enter something to continue: " );
fgets ( dummy_string, STRING_LENGTH, stdin );
projects / freeglut / blobdiff