#include <GL/freeglut.h>
#include <stdio.h>
#include <stdlib.h>
+#include <stdarg.h>
static int sequence_number = 0 ;
+int reshape_called = 0, key_called = 0, special_called = 0, visibility_called = 0,
+ keyup_called = 0, specialup_called = 0, joystick_called = 0, mouse_called = 0,
+ mousewheel_called = 0, motion_called = 0, passivemotion_called = 0, entry_called = 0,
+ close_called = 0, overlaydisplay_called = 0, windowstatus_called = 0,
+ spacemotion_called = 0, spacerotation_called = 0, spacebutton_called = 0,
+ buttonbox_called = 0, dials_called = 0, tabletmotion_called = 0, tabletbutton_called = 0,
+ menudestroy_called = 0, menustatus_called = 0 ;
+int reshape_width = -1, reshape_height = -1, reshape_seq = -1 ;
+int key_key = -1, key_x = -1, key_y = -1, key_seq = -1 ;
+int special_key = -1, special_x = -1, special_y = -1, special_seq = -1 ;
+int visibility_vis = -1, visibility_seq = -1 ;
+int keyup_key = -1, keyup_x = -1, keyup_y = -1, keyup_seq = -1 ;
+int specialup_key = -1, specialup_x = -1, specialup_y = -1, specialup_seq = -1 ;
+int joystick_a = -1, joystick_b = -1, joystick_c = -1, joystick_d = -1, joystick_seq = -1 ; /* Need meaningful names */
+int mouse_button = -1, mouse_updown = -1, mouse_x = -1, mouse_y = -1, mouse_seq = -1 ;
+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)
{
int window = glutGetWindow () ;
- glClear( GL_COLOR_BUFFER_BIT );
+ glClear ( GL_COLOR_BUFFER_BIT );
+
+ glDisable ( GL_DEPTH_TEST );
+ glMatrixMode ( GL_PROJECTION );
+ glPushMatrix();
+ glLoadIdentity();
+ glOrtho(0, glutGet ( GLUT_WINDOW_WIDTH ),
+ 0, glutGet ( GLUT_WINDOW_HEIGHT ), -1, 1 );
+ glMatrixMode ( GL_MODELVIEW );
+ glPushMatrix ();
+ glLoadIdentity ();
+ glColor3ub ( 0, 0, 0 );
+ glRasterPos2i ( 10, glutGet ( GLUT_WINDOW_HEIGHT ) - 10 );
+
+ if ( reshape_called )
+ {
+ bitmapPrintf ( "Reshape %d: %d %d\n", reshape_seq, reshape_width, reshape_height );
+ }
+
+ if ( key_called )
+ {
+ bitmapPrintf ( "Key %d: %d(%c) %d %d\n", key_seq, key_key, key_key, key_x, key_y );
+ }
+
+ if ( special_called )
+ {
+ bitmapPrintf ( "Special %d: %d(%c) %d %d\n", special_seq, special_key, special_key, special_x, special_y );
+ }
+
+ if ( visibility_called )
+ {
+ bitmapPrintf ( "Visibility %d: %d\n", visibility_seq, visibility_vis );
+ }
+
+ if ( keyup_called )
+ {
+ bitmapPrintf ( "Key Up %d: %d(%c) %d %d\n", keyup_seq, keyup_key, keyup_key, keyup_x, keyup_y );
+ }
+
+ if ( specialup_called )
+ {
+ bitmapPrintf ( "Special Up %d: %d(%c) %d %d\n", specialup_seq, specialup_key, specialup_key, specialup_x, specialup_y );
+ }
+
+ if ( joystick_called )
+ {
+ bitmapPrintf ( "Joystick %d: %d %d %d %d\n", joystick_seq, joystick_a, joystick_b, joystick_c, joystick_d );
+ }
+
+ if ( mouse_called )
+ {
+ bitmapPrintf ( "Mouse %d: %d %d %d %d\n", mouse_seq, mouse_button, mouse_updown, mouse_x, mouse_y );
+ }
+
+ if ( mousewheel_called )
+ {
+ bitmapPrintf ( "Mouse Wheel %d: %d %d %d %d\n", mousewheel_seq, mousewheel_number, mousewheel_direction, mousewheel_x, mousewheel_y );
+ }
+
+ if ( motion_called )
+ {
+ bitmapPrintf ( "Motion %d: %d %d\n", motion_seq, motion_x, motion_y );
+ }
+
+ if ( passivemotion_called )
+ {
+ bitmapPrintf ( "Passive Motion %d: %d %d\n", passivemotion_seq, passivemotion_x, passivemotion_y );
+ }
+
+ glMatrixMode ( GL_PROJECTION );
+ glPopMatrix ();
+ glMatrixMode ( GL_MODELVIEW );
+ glPopMatrix ();
+ glEnable ( GL_DEPTH_TEST );
printf ( "%6d Window %d Display Callback\n",
++sequence_number, window ) ;
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)
{
int window = glutGetWindow () ;
printf ( "%6d Window %d Reshape Callback: %d %d\n",
++sequence_number, window, width, height ) ;
+ reshape_called = 1 ;
+ reshape_width = width ;
+ reshape_height = height ;
+ reshape_seq = sequence_number ;
+ glutPostRedisplay () ;
}
static void
int window = glutGetWindow () ;
printf ( "%6d Window %d Keyboard Callback: %d %d %d\n",
++sequence_number, window, key, x, y ) ;
+ key_called = 1 ;
+ key_key = key ;
+ key_x = x ;
+ key_y = y ;
+ key_seq = sequence_number ;
+ glutPostRedisplay () ;
}
static void
int window = glutGetWindow () ;
printf ( "%6d Window %d Special Key Callback: %d %d %d\n",
++sequence_number, window, key, x, y ) ;
+ special_called = 1 ;
+ special_key = key ;
+ special_x = x ;
+ special_y = y ;
+ special_seq = sequence_number ;
+ glutPostRedisplay () ;
}
static void
int window = glutGetWindow () ;
printf ( "%6d Window %d Visibility Callback: %d\n",
++sequence_number, window, vis ) ;
+ visibility_called = 1 ;
+ visibility_vis = vis ;
+ visibility_seq = sequence_number ;
+ glutPostRedisplay () ;
}
static void
int window = glutGetWindow () ;
printf ( "%6d Window %d Key Release Callback: %d %d %d\n",
++sequence_number, window, key, x, y ) ;
+ keyup_called = 1 ;
+ keyup_key = key ;
+ keyup_x = x ;
+ keyup_y = y ;
+ keyup_seq = sequence_number ;
+ glutPostRedisplay () ;
}
static void
int window = glutGetWindow () ;
printf ( "%6d Window %d Special Key Release Callback: %d %d %d\n",
++sequence_number, window, key, x, y ) ;
+ specialup_called = 1 ;
+ specialup_key = key ;
+ specialup_x = x ;
+ specialup_y = y ;
+ specialup_seq = sequence_number ;
+ glutPostRedisplay () ;
}
static void
-Joystick( unsigned int a, int b, int c, int d)
+Joystick( unsigned int a, int b, int c, int d) /* Need meaningful names */
{
int window = glutGetWindow () ;
printf ( "%6d Window %d Joystick Callback: %d %d %d %d\n",
++sequence_number, window, a, b, c, d ) ;
+ joystick_called = 1 ;
+ joystick_a = a ;
+ joystick_b = b ;
+ joystick_c = c ;
+ joystick_d = d ;
+ joystick_seq = sequence_number ;
+ glutPostRedisplay () ;
}
static void
int window = glutGetWindow () ;
printf ( "%6d Window %d Mouse Click Callback: %d %d %d %d\n",
++sequence_number, window, button, updown, x, y ) ;
+ mouse_called = 1 ;
+ mouse_button = button ;
+ mouse_updown = updown ;
+ mouse_x = x ;
+ mouse_y = y ;
+ mouse_seq = sequence_number ;
+ glutPostRedisplay () ;
}
static void
int window = glutGetWindow () ;
printf ( "%6d Window %d Mouse Wheel Callback: %d %d %d %d\n",
++sequence_number, window, wheel_number, direction, x, y ) ;
+ mousewheel_called = 1 ;
+ mousewheel_number = wheel_number ;
+ mousewheel_direction = direction ;
+ mousewheel_x = x ;
+ mousewheel_y = y ;
+ mousewheel_seq = sequence_number ;
+ glutPostRedisplay () ;
}
static void
int window = glutGetWindow () ;
printf ( "%6d Window %d Mouse Motion Callback: %d %d\n",
++sequence_number, window, x, y ) ;
+ motion_called = 1 ;
+ motion_x = x ;
+ motion_y = y ;
+ motion_seq = sequence_number ;
+ glutPostRedisplay () ;
}
static void
int window = glutGetWindow () ;
printf ( "%6d Window %d Mouse Passive Motion Callback: %d %d\n",
++sequence_number, window, x, y ) ;
+ passivemotion_called = 1 ;
+ passivemotion_x = x ;
+ passivemotion_y = y ;
+ passivemotion_seq = sequence_number ;
+ glutPostRedisplay () ;
}
static void
Entry(int state)
{
int window = glutGetWindow () ;
+ entry_called = 1 ;
printf ( "%6d Window %d Entry Callback: %d\n",
++sequence_number, window, state ) ;
+ glutPostRedisplay () ;
}
static void
Close(void)
{
int window = glutGetWindow () ;
+ close_called = 1 ;
printf ( "%6d Window %d Close Callback\n",
++sequence_number, window ) ;
}
+static void
+OverlayDisplay(void)
+{
+ int window = glutGetWindow () ;
+ overlaydisplay_called = 1 ;
+ printf ( "%6d Window %d OverlayDisplay Callback\n",
+ ++sequence_number, window ) ;
+ glutPostRedisplay () ;
+}
+
+static void
+WindowStatus(int state)
+{
+ int window = glutGetWindow () ;
+ windowstatus_called = 1 ;
+ printf ( "%6d Window %d WindowStatus Callback: %d\n",
+ ++sequence_number, window, state ) ;
+ glutPostRedisplay () ;
+}
+
+static void
+SpaceMotion(int x, int y, int z)
+{
+ int window = glutGetWindow () ;
+ spacemotion_called = 1 ;
+ printf ( "%6d Window %d SpaceMotion Callback: %d %d %d\n",
+ ++sequence_number, window, x, y, z ) ;
+ glutPostRedisplay () ;
+}
+
+static void
+SpaceRotation(int x, int y, int z)
+{
+ int window = glutGetWindow () ;
+ spacerotation_called = 1 ;
+ printf ( "%6d Window %d SpaceRotation Callback: %d %d %d\n",
+ ++sequence_number, window, x, y, z ) ;
+ glutPostRedisplay () ;
+}
+
+static void
+SpaceButton(int button, int updown)
+{
+ int window = glutGetWindow () ;
+ spacebutton_called = 1 ;
+ printf ( "%6d Window %d SpaceButton Callback: %d %d\n",
+ ++sequence_number, window, button, updown ) ;
+ glutPostRedisplay () ;
+}
+
+static void
+Dials(int x, int y)
+{
+ int window = glutGetWindow () ;
+ dials_called = 1 ;
+ printf ( "%6d Window %d Dials Callback: %d %d\n",
+ ++sequence_number, window, x, y ) ;
+ glutPostRedisplay () ;
+}
+
+static void
+ButtonBox(int button, int updown)
+{
+ int window = glutGetWindow () ;
+ buttonbox_called = 1 ;
+ printf ( "%6d Window %d ButtonBox Callback: %d %d\n",
+ ++sequence_number, window, button, updown ) ;
+ glutPostRedisplay () ;
+}
+
+static void
+TabletMotion(int x, int y)
+{
+ int window = glutGetWindow () ;
+ tabletmotion_called = 1 ;
+ printf ( "%6d Window %d TabletMotion Callback: %d %d\n",
+ ++sequence_number, window, x, y ) ;
+ glutPostRedisplay () ;
+}
+
+static void
+TabletButton(int button, int updown, int x, int y)
+{
+ int window = glutGetWindow () ;
+ tabletbutton_called = 1 ;
+ printf ( "%6d Window %d TabletButton Callback: %d %d %d %d\n",
+ ++sequence_number, window, button, updown, x, y ) ;
+ glutPostRedisplay () ;
+}
+
+static void
+MenuCallback ( int menuID )
+{
+ int window = glutGetWindow () ;
+ printf( "%6d Window %d MenuCallback - menuID is %d\n",
+ ++sequence_number, window, menuID );
+}
+
+static void
+MenuDestroy( void )
+{
+ int window = glutGetWindow () ;
+ 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 () ;
+}
+
+static void
+MenuStatus( int status, int x, int y )
+{
+ int window = glutGetWindow () ;
+ menudestroy_called = 1 ;
+ printf ( "%6d Window %d MenuStatus Callback: %d %d %d\n",
+ ++sequence_number, window, status, x, y ) ;
+ glutPostRedisplay () ;
+}
+static void Idle ( void )
+{
+ ++sequence_number ;
+}
int
main(int argc, char *argv[])
{
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 ) ;
glutVisibilityFunc( Visibility );
glutKeyboardUpFunc( KeyUp );
glutSpecialUpFunc( SpecialUp );
- glutJoystickFunc( Joystick, 10 );
+ 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 ) ;
+ 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 );
+
+ 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 );
+ glutAddMenuEntry( "Entry two", 2 );
+ glutAddMenuEntry( "Entry three", 3 );
+ glutAddMenuEntry( "Entry four", 4 );
+ glutAddMenuEntry( "Entry five", 5 );
+ glutAddSubMenu( "Enter sub menu A", subMenuA );
+ glutAddSubMenu( "Enter sub menu B", subMenuB );
+ glutMenuDestroyFunc ( MenuDestroy );
+
+ glutAttachMenu( GLUT_LEFT_BUTTON );
aux_window = glutCreateWindow( "Second Window" );
printf ( "Creating window %d as 'Second Window'\n", aux_window ) ;
glutVisibilityFunc( Visibility );
glutKeyboardUpFunc( KeyUp );
glutSpecialUpFunc( SpecialUp );
-// glutJoystickFunc( Joystick, 10 );
+ /* 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) ;
+
+ glutIdleFunc ( Idle );
+
+ printf ( "Please enter something to continue: " );
+ fgets ( dummy_string, STRING_LENGTH, stdin );
glutMainLoop();
projects / freeglut / blobdiff