419e4793b0
various callback. also added menustate/menustatus callbacks git-svn-id: https://svn.code.sf.net/p/freeglut/code/trunk@1468 7f0cb862-5218-0410-a997-914c9d46530a
636 lines
18 KiB
C
636 lines
18 KiB
C
/* CallbackMaker.c */
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/*
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* Program to invoke all the callbacks that "freeglut" supports
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*/
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#include <GL/freeglut.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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static int sequence_number = 0 ;
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int windows[2] = {0};
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/* define status vars showing whether given callback has been called for given window */
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#define CALLBACK_CALLED_VAR(name) int name##_called[2] = {0};
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#define CALLBACK_1_VAR(name,field) int name##_##field[2], name##_seq[2] = {-1};
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#define CALLBACK_2_VARS(name,field1,field2) int name##_##field1[2], name##_##field2[2], name##_seq[2] = {-1};
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#define CALLBACK_3_VARS(name,field1,field2,field3) int name##_##field1[2], name##_##field2[2], name##_##field3[2], name##_seq[2] = {-1};
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#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};
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CALLBACK_CALLED_VAR(reshape);
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CALLBACK_2_VARS(reshape,width,height);
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CALLBACK_CALLED_VAR(key);
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CALLBACK_3_VARS(key,key,x,y);
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CALLBACK_CALLED_VAR(keyup);
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CALLBACK_3_VARS(keyup,key,x,y);
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CALLBACK_CALLED_VAR(special);
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CALLBACK_3_VARS(special,key,x,y);
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CALLBACK_CALLED_VAR(specialup);
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CALLBACK_3_VARS(specialup,key,x,y);
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CALLBACK_CALLED_VAR(visibility);
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CALLBACK_1_VAR(visibility,vis);
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CALLBACK_CALLED_VAR(joystick);
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CALLBACK_4_VARS(joystick,a,b,c,d);
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CALLBACK_CALLED_VAR(mouse);
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CALLBACK_4_VARS(mouse,button,updown,x,y);
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CALLBACK_CALLED_VAR(mousewheel);
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CALLBACK_4_VARS(mousewheel,number,direction,x,y);
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CALLBACK_CALLED_VAR(motion);
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CALLBACK_2_VARS(motion,x,y);
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CALLBACK_CALLED_VAR(passivemotion);
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CALLBACK_2_VARS(passivemotion,x,y);
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CALLBACK_CALLED_VAR(entry);
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CALLBACK_CALLED_VAR(close);
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/*CALLBACK_CALLED_VAR(overlaydisplay);
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CALLBACK_CALLED_VAR(windowstatus);
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CALLBACK_CALLED_VAR(spacemotion);
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CALLBACK_CALLED_VAR(spacerotation);
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CALLBACK_CALLED_VAR(spacebutton);
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CALLBACK_CALLED_VAR(buttonbox);
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CALLBACK_CALLED_VAR(dials);
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CALLBACK_CALLED_VAR(tabletmotion);
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CALLBACK_CALLED_VAR(tabletbutton);
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CALLBACK_CALLED_VAR(menustatus);*/
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/* menudestroy is registered on each menu, not a window */
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int menudestroy_called = 0 ;
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/* menustatus and menustate are global callbacks, set for all menus at the same time */
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int menustatus_called = 0;
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int menustate_called = 0;
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#define STRING_LENGTH 10
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static void
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bitmapPrintf (const char *fmt, ...)
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{
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static char buf[256];
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va_list args;
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va_start(args, fmt);
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#if defined(WIN32) && !defined(__CYGWIN__)
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(void) _vsnprintf (buf, sizeof(buf), fmt, args);
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#else
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(void) vsnprintf (buf, sizeof(buf), fmt, args);
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#endif
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va_end(args);
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glutBitmapString ( GLUT_BITMAP_HELVETICA_12, (unsigned char*)buf ) ;
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}
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static int
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getWindowAndIdx(int *winIdx)
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{
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int window = glutGetWindow();
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if (winIdx)
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(*winIdx) = window==windows[0]?0:1;
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return window;
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}
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static void
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Display(void)
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{
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int winIdx;
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int window = getWindowAndIdx(&winIdx);
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glClear ( GL_COLOR_BUFFER_BIT );
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glDisable ( GL_DEPTH_TEST );
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glMatrixMode ( GL_PROJECTION );
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glPushMatrix();
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glLoadIdentity();
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glOrtho(0, glutGet ( GLUT_WINDOW_WIDTH ),
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0, glutGet ( GLUT_WINDOW_HEIGHT ), -1, 1 );
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glMatrixMode ( GL_MODELVIEW );
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glPushMatrix ();
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glLoadIdentity ();
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glColor3ub ( 0, 0, 0 );
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glRasterPos2i ( 10, glutGet ( GLUT_WINDOW_HEIGHT ) - 20 ); /* 10pt margin above 10pt letters */
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if ( reshape_called[winIdx] )
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{
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bitmapPrintf ( "Reshape %d: %d %d\n", reshape_seq[winIdx], reshape_width[winIdx], reshape_height[winIdx] );
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}
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if ( key_called[winIdx] )
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{
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bitmapPrintf ( "Key %d: %d(%c) %d %d\n", key_seq[winIdx], key_key[winIdx], key_key[winIdx], key_x[winIdx], key_y[winIdx] );
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}
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if ( special_called[winIdx] )
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{
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bitmapPrintf ( "Special %d: %d(%c) %d %d\n", special_seq[winIdx], special_key[winIdx], special_key[winIdx], special_x[winIdx], special_y[winIdx] );
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}
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if ( visibility_called[winIdx] )
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{
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bitmapPrintf ( "Visibility %d: %d\n", visibility_seq[winIdx], visibility_vis[winIdx] );
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}
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if ( keyup_called[winIdx] )
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{
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bitmapPrintf ( "Key Up %d: %d(%c) %d %d\n", keyup_seq[winIdx], keyup_key[winIdx], keyup_key[winIdx], keyup_x[winIdx], keyup_y[winIdx] );
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}
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if ( specialup_called[winIdx] )
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{
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bitmapPrintf ( "Special Up %d: %d(%c) %d %d\n", specialup_seq[winIdx], specialup_key[winIdx], specialup_key[winIdx], specialup_x[winIdx], specialup_y[winIdx] );
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}
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if ( joystick_called[winIdx] )
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{
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bitmapPrintf ( "Joystick %d: %d %d %d %d\n", joystick_seq[winIdx], joystick_a[winIdx], joystick_b[winIdx], joystick_c[winIdx], joystick_d[winIdx] );
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}
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if ( mouse_called[winIdx] )
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{
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bitmapPrintf ( "Mouse %d: %d %d %d %d\n", mouse_seq[winIdx], mouse_button[winIdx], mouse_updown[winIdx], mouse_x[winIdx], mouse_y[winIdx] );
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}
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if ( mousewheel_called[winIdx] )
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{
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bitmapPrintf ( "Mouse Wheel %d: %d %d %d %d\n", mousewheel_seq[winIdx], mousewheel_number[winIdx], mousewheel_direction[winIdx], mousewheel_x[winIdx], mousewheel_y[winIdx] );
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}
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if ( motion_called[winIdx] )
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{
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bitmapPrintf ( "Motion %d: %d %d\n", motion_seq[winIdx], motion_x[winIdx], motion_y[winIdx] );
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}
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if ( passivemotion_called[winIdx] )
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{
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bitmapPrintf ( "Passive Motion %d: %d %d\n", passivemotion_seq[winIdx], passivemotion_x[winIdx], passivemotion_y[winIdx] );
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}
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glMatrixMode ( GL_PROJECTION );
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glPopMatrix ();
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glMatrixMode ( GL_MODELVIEW );
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glPopMatrix ();
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glEnable ( GL_DEPTH_TEST );
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printf ( "%6d Window %d Display Callback\n",
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++sequence_number, window ) ;
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glutSwapBuffers();
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}
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static void
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Warning(const char *fmt, va_list ap)
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{
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printf("%6d Warning callback:\n");
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/* print warning message */
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vprintf(fmt, ap);
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}
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static void
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Error(const char *fmt, va_list ap)
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{
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char dummy_string[STRING_LENGTH];
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printf("%6d Error callback:\n");
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/* print warning message */
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vprintf(fmt, ap);
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/* terminate program, after pause for input so user can see */
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printf ( "Please enter something to exit: " );
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fgets ( dummy_string, STRING_LENGTH, stdin );
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/* Call exit directly as freeglut is messed
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* up internally when an error is called.
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*/
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exit(1);
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}
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static void
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Reshape(int width, int height)
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{
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int winIdx;
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int window = getWindowAndIdx(&winIdx);
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printf ( "%6d Window %d Reshape Callback: %d %d\n",
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++sequence_number, window, width, height ) ;
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reshape_called[winIdx] = 1 ;
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reshape_width[winIdx] = width ;
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reshape_height[winIdx] = height ;
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reshape_seq[winIdx] = sequence_number ;
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glViewport(0,0,width,height);
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glutPostRedisplay () ;
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}
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static void
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Key(unsigned char key, int x, int y)
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{
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int winIdx;
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int window = getWindowAndIdx(&winIdx);
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printf ( "%6d Window %d Keyboard Callback: %d %d %d\n",
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++sequence_number, window, key, x, y ) ;
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key_called[winIdx] = 1 ;
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key_key[winIdx] = key ;
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key_x[winIdx] = x ;
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key_y[winIdx] = y ;
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key_seq[winIdx] = sequence_number ;
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glutPostRedisplay () ;
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}
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static void
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Special(int key, int x, int y)
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{
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int winIdx;
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int window = getWindowAndIdx(&winIdx);
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printf ( "%6d Window %d Special Key Callback: %d %d %d\n",
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++sequence_number, window, key, x, y ) ;
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special_called[winIdx] = 1 ;
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special_key[winIdx] = key ;
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special_x[winIdx] = x ;
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special_y[winIdx] = y ;
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special_seq[winIdx] = sequence_number ;
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glutPostRedisplay () ;
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}
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static void
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Visibility(int vis)
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{
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int winIdx;
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int window = getWindowAndIdx(&winIdx);
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printf ( "%6d Window %d Visibility Callback: %d\n",
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++sequence_number, window, vis ) ;
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visibility_called[winIdx] = 1 ;
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visibility_vis[winIdx] = vis ;
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visibility_seq[winIdx] = sequence_number ;
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glutPostRedisplay () ;
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}
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static void
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KeyUp(unsigned char key, int x, int y)
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{
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int winIdx;
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int window = getWindowAndIdx(&winIdx);
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printf ( "%6d Window %d Key Release Callback: %d %d %d\n",
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++sequence_number, window, key, x, y ) ;
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keyup_called[winIdx] = 1 ;
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keyup_key[winIdx] = key ;
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keyup_x[winIdx] = x ;
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keyup_y[winIdx] = y ;
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keyup_seq[winIdx] = sequence_number ;
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glutPostRedisplay () ;
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}
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static void
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SpecialUp(int key, int x, int y)
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{
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int winIdx;
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int window = getWindowAndIdx(&winIdx);
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printf ( "%6d Window %d Special Key Release Callback: %d %d %d\n",
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++sequence_number, window, key, x, y ) ;
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specialup_called[winIdx] = 1 ;
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specialup_key[winIdx] = key ;
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specialup_x[winIdx] = x ;
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specialup_y[winIdx] = y ;
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specialup_seq[winIdx] = sequence_number ;
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glutPostRedisplay () ;
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}
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static void
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Joystick( unsigned int a, int b, int c, int d) /* Need meaningful names */
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{
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int winIdx;
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int window = getWindowAndIdx(&winIdx);
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printf ( "%6d Window %d Joystick Callback: %d %d %d %d\n",
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++sequence_number, window, a, b, c, d ) ;
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joystick_called[winIdx] = 1 ;
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joystick_a[winIdx] = a ;
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joystick_b[winIdx] = b ;
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joystick_c[winIdx] = c ;
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joystick_d[winIdx] = d ;
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joystick_seq[winIdx] = sequence_number ;
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glutPostRedisplay () ;
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}
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static void
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Mouse(int button, int updown, int x, int y)
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{
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int winIdx;
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int window = getWindowAndIdx(&winIdx);
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printf ( "%6d Window %d Mouse Click Callback: %d %d %d %d\n",
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++sequence_number, window, button, updown, x, y ) ;
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mouse_called[winIdx] = 1 ;
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mouse_button[winIdx] = button ;
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mouse_updown[winIdx] = updown ;
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mouse_x[winIdx] = x ;
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mouse_y[winIdx] = y ;
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mouse_seq[winIdx] = sequence_number ;
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glutPostRedisplay () ;
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}
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static void
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MouseWheel(int wheel_number, int direction, int x, int y)
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{
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int winIdx;
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int window = getWindowAndIdx(&winIdx);
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printf ( "%6d Window %d Mouse Wheel Callback: %d %d %d %d\n",
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++sequence_number, window, wheel_number, direction, x, y ) ;
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mousewheel_called[winIdx] = 1 ;
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mousewheel_number[winIdx] = wheel_number ;
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mousewheel_direction[winIdx] = direction ;
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mousewheel_x[winIdx] = x ;
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mousewheel_y[winIdx] = y ;
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mousewheel_seq[winIdx] = sequence_number ;
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glutPostRedisplay () ;
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}
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static void
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Motion(int x, int y)
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{
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int winIdx;
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int window = getWindowAndIdx(&winIdx);
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printf ( "%6d Window %d Mouse Motion Callback: %d %d\n",
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++sequence_number, window, x, y ) ;
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motion_called[winIdx] = 1 ;
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motion_x[winIdx] = x ;
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motion_y[winIdx] = y ;
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motion_seq[winIdx] = sequence_number ;
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glutPostRedisplay () ;
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}
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static void
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PassiveMotion(int x, int y)
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{
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int winIdx;
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int window = getWindowAndIdx(&winIdx);
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printf ( "%6d Window %d Mouse Passive Motion Callback: %d %d\n",
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++sequence_number, window, x, y ) ;
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passivemotion_called[winIdx] = 1 ;
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passivemotion_x[winIdx] = x ;
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passivemotion_y[winIdx] = y ;
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passivemotion_seq[winIdx] = sequence_number ;
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glutPostRedisplay () ;
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}
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static void
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Entry(int state)
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{
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int window = getWindowAndIdx(NULL);
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printf ( "%6d Window %d Entry Callback: %d\n",
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++sequence_number, window, state ) ;
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glutPostRedisplay () ;
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}
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static void
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Close(void)
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{
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int window = getWindowAndIdx(NULL);
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printf ( "%6d Window %d Close Callback\n",
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++sequence_number, window ) ;
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}
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static void
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OverlayDisplay(void)
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{
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int window = getWindowAndIdx(NULL);
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printf ( "%6d Window %d OverlayDisplay Callback\n",
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++sequence_number, window ) ;
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glutPostRedisplay () ;
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}
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static void
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WindowStatus(int state)
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{
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int window = getWindowAndIdx(NULL);
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printf ( "%6d Window %d WindowStatus Callback: %d\n",
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++sequence_number, window, state ) ;
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glutPostRedisplay () ;
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}
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static void
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SpaceMotion(int x, int y, int z)
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{
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int window = getWindowAndIdx(NULL);
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printf ( "%6d Window %d SpaceMotion Callback: %d %d %d\n",
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++sequence_number, window, x, y, z ) ;
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glutPostRedisplay () ;
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}
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static void
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SpaceRotation(int x, int y, int z)
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{
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int window = getWindowAndIdx(NULL);
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printf ( "%6d Window %d SpaceRotation Callback: %d %d %d\n",
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++sequence_number, window, x, y, z ) ;
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glutPostRedisplay () ;
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}
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static void
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SpaceButton(int button, int updown)
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{
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int window = getWindowAndIdx(NULL);
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printf ( "%6d Window %d SpaceButton Callback: %d %d\n",
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++sequence_number, window, button, updown ) ;
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glutPostRedisplay () ;
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}
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static void
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Dials(int x, int y)
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{
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int window = getWindowAndIdx(NULL);
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printf ( "%6d Window %d Dials Callback: %d %d\n",
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++sequence_number, window, x, y ) ;
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glutPostRedisplay () ;
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}
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static void
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ButtonBox(int button, int updown)
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{
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int window = getWindowAndIdx(NULL);
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printf ( "%6d Window %d ButtonBox Callback: %d %d\n",
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++sequence_number, window, button, updown ) ;
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glutPostRedisplay () ;
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}
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static void
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TabletMotion(int x, int y)
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{
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int window = getWindowAndIdx(NULL);
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printf ( "%6d Window %d TabletMotion Callback: %d %d\n",
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++sequence_number, window, x, y ) ;
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glutPostRedisplay () ;
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}
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static void
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TabletButton(int button, int updown, int x, int y)
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{
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int window = getWindowAndIdx(NULL);
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printf ( "%6d Window %d TabletButton Callback: %d %d %d %d\n",
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++sequence_number, window, button, updown, x, y ) ;
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glutPostRedisplay () ;
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}
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static void
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MenuCallback ( int value )
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{
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int menu = glutGetMenu();
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int window = getWindowAndIdx(NULL);
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printf( "%6d Menu %d MenuCallback for menu opened in Window %d - value is %d\n",
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++sequence_number, menu, window, value );
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}
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static void
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MenuDestroy( void )
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{
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int menu = glutGetMenu();
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menudestroy_called = 1 ;
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printf ( "%6d Menu %d MenuDestroy Callback\n",
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++sequence_number, menu ) ;
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}
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static void
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MenuStatus( int status, int x, int y )
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{
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/* Menu and window for which this event is triggered are current when the callback is called */
|
|
int menu = glutGetMenu();
|
|
int window = getWindowAndIdx(NULL);
|
|
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 () ;
|
|
}
|
|
|
|
static void Idle ( void )
|
|
{
|
|
++sequence_number ;
|
|
}
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
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);
|
|
|
|
/* 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 );
|
|
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) ;
|
|
|
|
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 */
|
|
|
|
subMenuB = glutCreateMenu( MenuCallback );
|
|
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 ); /* callback specific to this menu */
|
|
|
|
menuID = glutCreateMenu( MenuCallback );
|
|
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 ); /* callback specific to this menu */
|
|
|
|
glutAttachMenu( GLUT_LEFT_BUTTON );
|
|
|
|
glutInitWindowPosition ( 140+500+2*glutGet(GLUT_WINDOW_BORDER_WIDTH), 140 );
|
|
/* Position second window right next to the first */
|
|
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 );
|
|
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) ;
|
|
|
|
glutSetMenu(subMenuB);
|
|
glutAttachMenu( GLUT_RIGHT_BUTTON );
|
|
|
|
|
|
printf ( "Please enter something to continue: " );
|
|
fgets ( dummy_string, STRING_LENGTH, stdin );
|
|
|
|
glutMainLoop();
|
|
|
|
printf ( "Back from the 'freeglut' main loop\n" ) ;
|
|
|
|
return EXIT_SUCCESS;
|
|
}
|