X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=progs%2Fdemos%2FCallbackMaker%2FCallbackMaker.c;h=a8cd18b96e976a08b7d8ed72f84b9a0d9dcbdbe2;hb=dcdd8f2768e317dfd86561c0abe83c4a83968e52;hp=1d1350206e151f60da5a27945e0e8bd01703dc14;hpb=8a83e1754218f35b79c7369ff5e067544a66bade;p=freeglut diff --git a/progs/demos/CallbackMaker/CallbackMaker.c b/progs/demos/CallbackMaker/CallbackMaker.c index 1d13502..a8cd18b 100644 --- a/progs/demos/CallbackMaker/CallbackMaker.c +++ b/progs/demos/CallbackMaker/CallbackMaker.c @@ -8,22 +8,25 @@ #include #include #include +#include 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_5V(name,field1,field2,field3,field4,field5) int name##_##field5[2] = {-1}; CALLBACK_4V(name,field1,field2,field3,field4); +#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_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); @@ -36,7 +39,7 @@ 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 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; @@ -65,7 +68,9 @@ getWindowAndIdx(int *winIdx) 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; } @@ -76,15 +81,19 @@ 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"); @@ -119,6 +128,11 @@ Display(void) 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] ); @@ -204,7 +218,7 @@ Display(void) static void Warning(const char *fmt, va_list ap) { - printf("%6d Warning callback:\n"); + printf("%6d Warning callback:\n",++sequence_number); /* print warning message */ vprintf(fmt, ap); @@ -214,10 +228,11 @@ static void Error(const char *fmt, va_list ap) { char dummy_string[STRING_LENGTH]; - printf("%6d Error callback:\n"); + printf("%6d Error callback:\n",++sequence_number); /* print warning message */ vprintf(fmt, ap); + printf("\n"); /* terminate program, after pause for input so user can see */ printf ( "Please enter something to exit: " ); @@ -230,19 +245,6 @@ Error(const char *fmt, va_list ap) } 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 Reshape(int width, int height) { int winIdx; @@ -446,11 +448,28 @@ OverlayDisplay(void) } 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 () ; } @@ -565,6 +584,39 @@ static void Idle ( void ) ++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[]) { @@ -578,50 +630,41 @@ 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 ); glutAddMenuEntry( "Sub menu A2 (02)", 12 ); glutAddMenuEntry( "Sub menu A3 (03)", 13 ); glutMenuDestroyFunc ( MenuDestroy ); /* callback specific to this menu */ + /* Change font for this menu */ + glutSetMenuFont(subMenuA, GLUT_BITMAP_HELVETICA_12); subMenuB = glutCreateMenu( MenuCallback ); glutAddMenuEntry( "Sub menu B1 (04)", 14 ); @@ -629,6 +672,7 @@ main(int argc, char *argv[]) glutAddMenuEntry( "Sub menu B3 (06)", 16 ); glutAddSubMenu( "Going to sub menu A", subMenuA ); glutMenuDestroyFunc ( MenuDestroy ); /* callback specific to this menu */ + glutSetMenuFont(subMenuB, GLUT_BITMAP_9_BY_15); menuID = glutCreateMenu( MenuCallback ); glutAddMenuEntry( "Entry one", 21 ); @@ -642,44 +686,49 @@ main(int argc, char *argv[]) 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 );