int windows[2] = {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_1_VAR(name,field) int name##_##field[2], name##_seq[2] = {-1};
-#define CALLBACK_2_VARS(name,field1,field2) int name##_##field1[2], name##_##field2[2], name##_seq[2] = {-1};
-#define CALLBACK_3_VARS(name,field1,field2,field3) int name##_##field1[2], name##_##field2[2], name##_##field3[2], name##_seq[2] = {-1};
-#define CALLBACK_4_VARS(name,field1,field2,field3,field4) int name##_##field1[2], name##_##field2[2], name##_##field3[2], name##_##field4[2], name##_seq[2] = {-1};
-CALLBACK_CALLED_VAR(reshape);
-CALLBACK_2_VARS(reshape,width,height);
-CALLBACK_CALLED_VAR(key);
-CALLBACK_3_VARS(key,key,x,y);
-CALLBACK_CALLED_VAR(keyup);
-CALLBACK_3_VARS(keyup,key,x,y);
-CALLBACK_CALLED_VAR(special);
-CALLBACK_3_VARS(special,key,x,y);
-CALLBACK_CALLED_VAR(specialup);
-CALLBACK_3_VARS(specialup,key,x,y);
-CALLBACK_CALLED_VAR(visibility);
-CALLBACK_1_VAR(visibility,vis);
-CALLBACK_CALLED_VAR(joystick);
-CALLBACK_4_VARS(joystick,a,b,c,d);
-CALLBACK_CALLED_VAR(mouse);
-CALLBACK_4_VARS(mouse,button,updown,x,y);
-CALLBACK_CALLED_VAR(mousewheel);
-CALLBACK_4_VARS(mousewheel,number,direction,x,y);
-CALLBACK_CALLED_VAR(motion);
-CALLBACK_2_VARS(motion,x,y);
-CALLBACK_CALLED_VAR(passivemotion);
-CALLBACK_2_VARS(passivemotion,x,y);
-CALLBACK_CALLED_VAR(entry);
-CALLBACK_CALLED_VAR(close);
-/*CALLBACK_CALLED_VAR(overlaydisplay);
-CALLBACK_CALLED_VAR(windowstatus);
-CALLBACK_CALLED_VAR(spacemotion);
-CALLBACK_CALLED_VAR(spacerotation);
-CALLBACK_CALLED_VAR(spacebutton);
-CALLBACK_CALLED_VAR(buttonbox);
-CALLBACK_CALLED_VAR(dials);
-CALLBACK_CALLED_VAR(tabletmotion);
-CALLBACK_CALLED_VAR(tabletbutton);
-CALLBACK_CALLED_VAR(menustatus);*/
-int menudestroy_called = 0 ; /* menudestroy is registered on menu, so don't use above */
+#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);
+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_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_0V(close);
+/* menudestroy is registered on each menu, not a window */
+int menudestroy_called = 0 ;
+/* menustatus and menustate are global callbacks, set for all menus at the same time */
+int menustatus_called = 0;
+int menustate_called = 0;
#define STRING_LENGTH 10
bitmapPrintf ( "Reshape %d: %d %d\n", reshape_seq[winIdx], reshape_width[winIdx], reshape_height[winIdx] );
}
+ if ( position_called[winIdx] )
+ {
+ bitmapPrintf ( "Position %d: %d %d\n", position_seq[winIdx], position_left[winIdx], position_top[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] );
}
static void
+Position(int left, int top)
+{
+ int winIdx;
+ int window = getWindowAndIdx(&winIdx);
+ printf ( "%6d Window %d Position Callback: %d %d\n",
+ ++sequence_number, window, left, top ) ;
+ position_called[winIdx] = 1 ;
+ position_left[winIdx] = left ;
+ position_top[winIdx] = top ;
+ position_seq[winIdx] = sequence_number ;
+ glutPostRedisplay () ;
+}
+
+static void
Key(unsigned char key, int x, int y)
{
int winIdx;
}
static void
-MenuCallback ( int menuID )
+MenuCallback ( int value )
{
+ int menu = glutGetMenu();
int window = getWindowAndIdx(NULL);
- printf( "%6d Window %d MenuCallback - menuID is %d\n",
- ++sequence_number, window, menuID );
+ printf( "%6d Menu %d MenuCallback for menu opened in Window %d - value is %d\n",
+ ++sequence_number, menu, window, value );
}
static void
MenuDestroy( void )
{
- int window = getWindowAndIdx(NULL);
+ int menu = glutGetMenu();
menudestroy_called = 1 ;
- printf ( "%6d Window %d MenuDestroy Callback\n",
- ++sequence_number, window ) ;
-
- if (window) /* When destroyed when shutting down, not always a window defined... */
- glutPostRedisplay () ;
+ printf ( "%6d Menu %d MenuDestroy Callback\n",
+ ++sequence_number, menu ) ;
}
static void
MenuStatus( int status, int x, int y )
{
+ /* Menu and window for which this event is triggered are current when the callback is called */
+ int menu = glutGetMenu();
int window = getWindowAndIdx(NULL);
- menudestroy_called = 1 ;
- printf ( "%6d Window %d MenuStatus Callback: %d %d %d\n",
- ++sequence_number, window, status, x, y ) ;
+ menustatus_called = 1 ;
+ printf ( "%6d Menu %d MenuStatus Callback in Window %d: %d %d %d\n",
+ ++sequence_number, menu, window, status, x, y ) ;
+ glutPostRedisplay () ;
+}
+
+
+static void
+MenuState( int status )
+{
+ /* Menu and window for which this event is triggered are current when the callback is called */
+ int menu = glutGetMenu();
+ int window = getWindowAndIdx(NULL);
+ menustate_called = 1 ;
+ printf ( "%6d Menu %d MenuState Callback in Window %d: %d\n",
+ ++sequence_number, menu, window, status) ;
glutPostRedisplay () ;
}
glutInit(&argc, argv);
glutSetOption(GLUT_ACTION_ON_WINDOW_CLOSE,GLUT_ACTION_CONTINUE_EXECUTION);
+ /* 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. */
+
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 );
glutDialsFunc ( Dials ) ;
glutTabletMotionFunc ( TabletMotion ) ;
glutTabletButtonFunc ( TabletButton ) ;
- glutMenuStatusFunc ( MenuStatus );
glutSetKeyRepeat(GLUT_KEY_REPEAT_OFF) ;
subMenuA = glutCreateMenu( MenuCallback );
- glutAddMenuEntry( "Sub menu A1 (01)", 1 );
- glutAddMenuEntry( "Sub menu A2 (02)", 2 );
- glutAddMenuEntry( "Sub menu A3 (03)", 3 );
- glutMenuDestroyFunc ( MenuDestroy );
+ glutAddMenuEntry( "Sub menu A1 (01)", 11 );
+ glutAddMenuEntry( "Sub menu A2 (02)", 12 );
+ glutAddMenuEntry( "Sub menu A3 (03)", 13 );
+ glutMenuDestroyFunc ( MenuDestroy ); /* callback specific to this menu */
subMenuB = glutCreateMenu( MenuCallback );
- glutAddMenuEntry( "Sub menu B1 (04)", 4 );
- glutAddMenuEntry( "Sub menu B2 (05)", 5 );
- glutAddMenuEntry( "Sub menu B3 (06)", 6 );
+ glutAddMenuEntry( "Sub menu B1 (04)", 14 );
+ glutAddMenuEntry( "Sub menu B2 (05)", 15 );
+ glutAddMenuEntry( "Sub menu B3 (06)", 16 );
glutAddSubMenu( "Going to sub menu A", subMenuA );
- glutMenuDestroyFunc ( MenuDestroy );
+ glutMenuDestroyFunc ( MenuDestroy ); /* callback specific to this menu */
menuID = glutCreateMenu( MenuCallback );
- glutAddMenuEntry( "Entry one", 1 );
- glutAddMenuEntry( "Entry two", 2 );
- glutAddMenuEntry( "Entry three", 3 );
- glutAddMenuEntry( "Entry four", 4 );
- glutAddMenuEntry( "Entry five", 5 );
+ glutAddMenuEntry( "Entry one", 21 );
+ glutAddMenuEntry( "Entry two", 22 );
+ glutAddMenuEntry( "Entry three", 23 );
+ glutAddMenuEntry( "Entry four", 24 );
+ glutAddMenuEntry( "Entry five", 25 );
glutAddSubMenu( "Enter sub menu A", subMenuA );
glutAddSubMenu( "Enter sub menu B", subMenuB );
- glutMenuDestroyFunc ( MenuDestroy );
+ glutMenuDestroyFunc ( MenuDestroy ); /* callback specific to this menu */
glutAttachMenu( GLUT_LEFT_BUTTON );
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 );
glutTabletButtonFunc ( TabletButton ) ;
glutSetKeyRepeat(GLUT_KEY_REPEAT_OFF) ;
- glutIdleFunc ( Idle );
+ glutSetMenu(subMenuB);
+ glutAttachMenu( GLUT_RIGHT_BUTTON );
+
printf ( "Please enter something to continue: " );
fgets ( dummy_string, STRING_LENGTH, stdin );
printf ( "Back from the 'freeglut' main loop\n" ) ;
- return 0; /* ANSI C requires main to return int. */
+ return EXIT_SUCCESS;
}
projects / freeglut / blobdiff