X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;ds=sidebyside;f=progs%2Fdemos%2FCallbackMaker%2FCallbackMaker.c;h=2d310623902c7c04bd227d5fd759ac83f666db69;hb=eda45df83952e3e92ec4adacc8c942085e132077;hp=491c2933d02bf439d6beb1ec5cec0caeaa95627d;hpb=a9755432a41ede1b0371f543647199eb4542d5b0;p=freeglut diff --git a/progs/demos/CallbackMaker/CallbackMaker.c b/progs/demos/CallbackMaker/CallbackMaker.c index 491c293..2d31062 100644 --- a/progs/demos/CallbackMaker/CallbackMaker.c +++ b/progs/demos/CallbackMaker/CallbackMaker.c @@ -7,6 +7,7 @@ #include #include #include +#include static int sequence_number = 0 ; @@ -28,10 +29,29 @@ int mouse_button = -1, mouse_updown = -1, mouse_x = -1, mouse_y = -1, mouse_seq int mousewheel_number = -1, mousewheel_direction = -1, mousewheel_x = -1, mousewheel_y = -1, mousewheel_seq = -1 ; int motion_x = -1, motion_y = -1, motion_seq = -1 ; int passivemotion_x = -1, passivemotion_y = -1, passivemotion_seq = -1 ; + +#define STRING_LENGTH 10 + +static void +bitmapPrintf (const char *fmt, ...) +{ + static char buf[256]; + va_list args; + + va_start(args, fmt); +#if defined(WIN32) && !defined(__CYGWIN__) + (void) _vsnprintf (buf, sizeof(buf), fmt, args); +#else + (void) vsnprintf (buf, sizeof(buf), fmt, args); +#endif + va_end(args); + glutBitmapString ( GLUT_BITMAP_HELVETICA_12, (unsigned char*)buf ) ; +} + + static void Display(void) { - char line[180] ; int window = glutGetWindow () ; glClear ( GL_COLOR_BUFFER_BIT ); @@ -49,68 +69,57 @@ Display(void) if ( reshape_called ) { - sprintf ( line, "Reshape %d: %d %d\n", reshape_seq, reshape_width, reshape_height ); - glutBitmapString ( GLUT_BITMAP_HELVETICA_12, (unsigned char*)line ); + bitmapPrintf ( "Reshape %d: %d %d\n", reshape_seq, reshape_width, reshape_height ); } if ( key_called ) { - sprintf ( line, "Key %d: %d(%c) %d %d\n", key_seq, key_key, key_key, key_x, key_y ); - glutBitmapString ( GLUT_BITMAP_HELVETICA_12, (unsigned char*)line ); + bitmapPrintf ( "Key %d: %d(%c) %d %d\n", key_seq, key_key, key_key, key_x, key_y ); } if ( special_called ) { - sprintf ( line, "Special %d: %d(%c) %d %d\n", special_seq, special_key, special_key, special_x, special_y ); - glutBitmapString ( GLUT_BITMAP_HELVETICA_12, (unsigned char*)line ); + bitmapPrintf ( "Special %d: %d(%c) %d %d\n", special_seq, special_key, special_key, special_x, special_y ); } if ( visibility_called ) { - sprintf ( line, "Visibility %d: %d\n", visibility_seq, visibility_vis ); - glutBitmapString ( GLUT_BITMAP_HELVETICA_12, (unsigned char*)line ); + bitmapPrintf ( "Visibility %d: %d\n", visibility_seq, visibility_vis ); } if ( keyup_called ) { - sprintf ( line, "Key Up %d: %d(%c) %d %d\n", keyup_seq, keyup_key, keyup_key, keyup_x, keyup_y ); - glutBitmapString ( GLUT_BITMAP_HELVETICA_12, (unsigned char*)line ); + bitmapPrintf ( "Key Up %d: %d(%c) %d %d\n", keyup_seq, keyup_key, keyup_key, keyup_x, keyup_y ); } if ( specialup_called ) { - sprintf ( line, "Special Up %d: %d(%c) %d %d\n", specialup_seq, specialup_key, specialup_key, specialup_x, specialup_y ); - glutBitmapString ( GLUT_BITMAP_HELVETICA_12, (unsigned char*)line ); + bitmapPrintf ( "Special Up %d: %d(%c) %d %d\n", specialup_seq, specialup_key, specialup_key, specialup_x, specialup_y ); } if ( joystick_called ) { - sprintf ( line, "Joystick %d: %d %d %d %d\n", joystick_seq, joystick_a, joystick_b, joystick_c, joystick_d ); - glutBitmapString ( GLUT_BITMAP_HELVETICA_12, (unsigned char*)line ); + bitmapPrintf ( "Joystick %d: %d %d %d %d\n", joystick_seq, joystick_a, joystick_b, joystick_c, joystick_d ); } if ( mouse_called ) { - sprintf ( line, "Mouse %d: %d %d %d %d\n", mouse_seq, mouse_button, mouse_updown, mouse_x, mouse_y ); - glutBitmapString ( GLUT_BITMAP_HELVETICA_12, (unsigned char*)line ); + bitmapPrintf ( "Mouse %d: %d %d %d %d\n", mouse_seq, mouse_button, mouse_updown, mouse_x, mouse_y ); } if ( mousewheel_called ) { - sprintf ( line, "Mouse Wheel %d: %d %d %d %d\n", mousewheel_seq, mousewheel_number, mousewheel_direction, mousewheel_x, mousewheel_y ); - glutBitmapString ( GLUT_BITMAP_HELVETICA_12, (unsigned char*)line ); + bitmapPrintf ( "Mouse Wheel %d: %d %d %d %d\n", mousewheel_seq, mousewheel_number, mousewheel_direction, mousewheel_x, mousewheel_y ); } if ( motion_called ) { - sprintf ( line, "Motion %d: %d %d\n", motion_seq, motion_x, motion_y ); - glutBitmapString ( GLUT_BITMAP_HELVETICA_12, (unsigned char*)line ); + bitmapPrintf ( "Motion %d: %d %d\n", motion_seq, motion_x, motion_y ); } if ( passivemotion_called ) { - sprintf ( line, "Passive Motion %d: %d %d\n", passivemotion_seq, passivemotion_x, passivemotion_y ); - glutBitmapString ( GLUT_BITMAP_HELVETICA_12, (unsigned char*)line ); + bitmapPrintf ( "Passive Motion %d: %d %d\n", passivemotion_seq, passivemotion_x, passivemotion_y ); } glMatrixMode ( GL_PROJECTION ); @@ -124,6 +133,34 @@ Display(void) glutSwapBuffers(); } +static void +Warning(const char *fmt, va_list ap) +{ + printf("%6d Warning callback:\n"); + + /* print warning message */ + vprintf(fmt, ap); +} + +static void +Error(const char *fmt, va_list ap) +{ + char dummy_string[STRING_LENGTH]; + printf("%6d Error callback:\n"); + + /* print warning message */ + vprintf(fmt, ap); + + /* terminate program, after pause for input so user can see */ + printf ( "Please enter something to exit: " ); + fgets ( dummy_string, STRING_LENGTH, stdin ); + + /* Call exit directly as freeglut is messed + * up internally when an error is called. + */ + exit(1); +} + static void Reshape(int width, int height) { @@ -400,7 +437,9 @@ MenuDestroy( void ) menudestroy_called = 1 ; printf ( "%6d Window %d MenuDestroy Callback\n", ++sequence_number, window ) ; - glutPostRedisplay () ; + + if (window) /* When destroyed when shutting down, not always a window defined... */ + glutPostRedisplay () ; } static void @@ -421,16 +460,18 @@ static void Idle ( void ) int main(int argc, char *argv[]) { -#define STRING_LENGTH 10 int freeglut_window, aux_window ; char dummy_string[STRING_LENGTH]; int menuID, subMenuA, subMenuB; + glutInitWarningFunc(Warning); + glutInitErrorFunc(Error); glutInitWindowSize(500, 250); glutInitWindowPosition ( 140, 140 ); glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE ); glutInit(&argc, argv); + glutSetOption(GLUT_ACTION_ON_WINDOW_CLOSE,GLUT_ACTION_CONTINUE_EXECUTION); freeglut_window = glutCreateWindow( "Callback Demo" ); printf ( "Creating window %d as 'Callback Demo'\n", freeglut_window ) ; @@ -460,7 +501,6 @@ main(int argc, char *argv[]) glutDialsFunc ( Dials ) ; glutTabletMotionFunc ( TabletMotion ) ; glutTabletButtonFunc ( TabletButton ) ; - glutMenuDestroyFunc ( MenuDestroy ); glutMenuStatusFunc ( MenuStatus ); glutSetKeyRepeat(GLUT_KEY_REPEAT_OFF) ; @@ -468,12 +508,14 @@ main(int argc, char *argv[]) glutAddMenuEntry( "Sub menu A1 (01)", 1 ); glutAddMenuEntry( "Sub menu A2 (02)", 2 ); glutAddMenuEntry( "Sub menu A3 (03)", 3 ); + glutMenuDestroyFunc ( MenuDestroy ); subMenuB = glutCreateMenu( MenuCallback ); glutAddMenuEntry( "Sub menu B1 (04)", 4 ); glutAddMenuEntry( "Sub menu B2 (05)", 5 ); glutAddMenuEntry( "Sub menu B3 (06)", 6 ); glutAddSubMenu( "Going to sub menu A", subMenuA ); + glutMenuDestroyFunc ( MenuDestroy ); menuID = glutCreateMenu( MenuCallback ); glutAddMenuEntry( "Entry one", 1 ); @@ -483,6 +525,7 @@ main(int argc, char *argv[]) glutAddMenuEntry( "Entry five", 5 ); glutAddSubMenu( "Enter sub menu A", subMenuA ); glutAddSubMenu( "Enter sub menu B", subMenuB ); + glutMenuDestroyFunc ( MenuDestroy ); glutAttachMenu( GLUT_LEFT_BUTTON );