/*
* freeglut_callbacks.c
*
* The callbacks setting methods.
*
* Copyright (c) 1999-2000 Pawel W. Olszta. All Rights Reserved.
* Written by Pawel W. Olszta, <olszta@sourceforge.net>
* Creation date: Fri Dec 3 1999
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <GL/freeglut.h>
#include "freeglut_internal.h"
/* -- INTERFACE FUNCTIONS -------------------------------------------------- */
/*
* All of the callbacks setting methods can be generalized to this:
*/
#define SET_CALLBACK(a) \
do \
{ \
if( fgStructure.CurrentWindow == NULL ) \
return; \
SET_WCB( ( *( fgStructure.CurrentWindow ) ), a, callback ); \
} while( 0 )
/*
* Sets the Display callback for the current window
*/
void FGAPIENTRY glutDisplayFunc( void (* callback)( void ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutDisplayFunc" );
if( !callback )
fgError( "Fatal error in program. NULL display callback not "
"permitted in GLUT 3.0+ or freeglut 2.0.1+" );
SET_CALLBACK( Display );
}
/*
* Sets the Reshape callback for the current window
*/
void FGAPIENTRY glutReshapeFunc( void (* callback)( int, int ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutReshapeFunc" );
SET_CALLBACK( Reshape );
}
/*
* Sets the Keyboard callback for the current window
*/
void FGAPIENTRY glutKeyboardFunc( void (* callback)
( unsigned char, int, int ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutKeyboardFunc" );
SET_CALLBACK( Keyboard );
}
/*
* Sets the Special callback for the current window
*/
void FGAPIENTRY glutSpecialFunc( void (* callback)( int, int, int ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSpecialFunc" );
SET_CALLBACK( Special );
}
/*
* Sets the global idle callback
*/
void FGAPIENTRY glutIdleFunc( void (* callback)( void ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutIdleFunc" );
fgState.IdleCallback = callback;
}
/*
* Sets the Timer callback for the current window
*/
void FGAPIENTRY glutTimerFunc( unsigned int timeOut, void (* callback)( int ),
int timerID )
{
SFG_Timer *timer, *node;
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutTimerFunc" );
if( (timer = fgState.FreeTimers.Last) )
{
fgListRemove( &fgState.FreeTimers, &timer->Node );
}
else
{
if( ! (timer = malloc(sizeof(SFG_Timer))) )
fgError( "Fatal error: "
"Memory allocation failure in glutTimerFunc()" );
}
timer->Callback = callback;
timer->ID = timerID;
timer->TriggerTime = fgElapsedTime() + timeOut;
for( node = fgState.Timers.First; node; node = node->Node.Next )
{
if( node->TriggerTime > timer->TriggerTime )
break;
}
fgListInsert( &fgState.Timers, &node->Node, &timer->Node );
}
/*
* Sets the Visibility callback for the current window.
*/
static void fghVisibility( int status )
{
int glut_status = GLUT_VISIBLE;
FREEGLUT_INTERNAL_ERROR_EXIT_IF_NOT_INITIALISED ( "Visibility Callback" );
freeglut_return_if_fail( fgStructure.CurrentWindow );
if( ( GLUT_HIDDEN == status ) || ( GLUT_FULLY_COVERED == status ) )
glut_status = GLUT_NOT_VISIBLE;
INVOKE_WCB( *( fgStructure.CurrentWindow ), Visibility, ( glut_status ) );
}
void FGAPIENTRY glutVisibilityFunc( void (* callback)( int ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutVisibilityFunc" );
SET_CALLBACK( Visibility );
if( callback )
glutWindowStatusFunc( fghVisibility );
else
glutWindowStatusFunc( NULL );
}
/*
* Sets the keyboard key release callback for the current window
*/
void FGAPIENTRY glutKeyboardUpFunc( void (* callback)
( unsigned char, int, int ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutKeyboardUpFunc" );
SET_CALLBACK( KeyboardUp );
}
/*
* Sets the special key release callback for the current window
*/
void FGAPIENTRY glutSpecialUpFunc( void (* callback)( int, int, int ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSpecialUpFunc" );
SET_CALLBACK( SpecialUp );
}
/*
* Sets the joystick callback and polling rate for the current window
*/
void FGAPIENTRY glutJoystickFunc( void (* callback)
( unsigned int, int, int, int ),
int pollInterval )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutJoystickFunc" );
fgInitialiseJoysticks ();
if ( ( ( fgStructure.CurrentWindow->State.JoystickPollRate < 0 ) ||
!FETCH_WCB(*fgStructure.CurrentWindow,Joystick) ) && /* Joystick callback was disabled */
( callback && ( pollInterval >= 0 ) ) ) /* but is now enabled */
++fgState.NumActiveJoysticks;
else if ( ( ( fgStructure.CurrentWindow->State.JoystickPollRate >= 0 ) &&
FETCH_WCB(*fgStructure.CurrentWindow,Joystick) ) && /* Joystick callback was enabled */
( !callback || ( pollInterval < 0 ) ) ) /* but is now disabled */
--fgState.NumActiveJoysticks;
SET_CALLBACK( Joystick );
fgStructure.CurrentWindow->State.JoystickPollRate = pollInterval;
fgStructure.CurrentWindow->State.JoystickLastPoll =
fgElapsedTime() - fgStructure.CurrentWindow->State.JoystickPollRate;
if( fgStructure.CurrentWindow->State.JoystickLastPoll < 0 )
fgStructure.CurrentWindow->State.JoystickLastPoll = 0;
}
/*
* Sets the mouse callback for the current window
*/
void FGAPIENTRY glutMouseFunc( void (* callback)( int, int, int, int ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutMouseFunc" );
SET_CALLBACK( Mouse );
}
/*
* Sets the mouse wheel callback for the current window
*/
void FGAPIENTRY glutMouseWheelFunc( void (* callback)( int, int, int, int ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutMouseWheelFunc" );
SET_CALLBACK( MouseWheel );
}
/*
* Sets the mouse motion callback for the current window (one or more buttons
* are pressed)
*/
void FGAPIENTRY glutMotionFunc( void (* callback)( int, int ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutMotionFunc" );
SET_CALLBACK( Motion );
}
/*
* Sets the passive mouse motion callback for the current window (no mouse
* buttons are pressed)
*/
void FGAPIENTRY glutPassiveMotionFunc( void (* callback)( int, int ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutPassiveMotionFunc" );
SET_CALLBACK( Passive );
}
/*
* Window mouse entry/leave callback
*/
void FGAPIENTRY glutEntryFunc( void (* callback)( int ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutEntryFunc" );
SET_CALLBACK( Entry );
}
/*
* Window destruction callbacks
*/
void FGAPIENTRY glutCloseFunc( void (* callback)( void ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutCloseFunc" );
SET_CALLBACK( Destroy );
}
void FGAPIENTRY glutWMCloseFunc( void (* callback)( void ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutWMCloseFunc" );
glutCloseFunc( callback );
}
/* A. Donev: Destruction callback for menus */
void FGAPIENTRY glutMenuDestroyFunc( void (* callback)( void ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutMenuDestroyFunc" );
if( fgStructure.CurrentMenu )
fgStructure.CurrentMenu->Destroy = callback;
}
/*
* Deprecated version of glutMenuStatusFunc callback setting method
*/
void FGAPIENTRY glutMenuStateFunc( void (* callback)( int ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutMenuStateFunc" );
fgState.MenuStateCallback = callback;
}
/*
* Sets the global menu status callback for the current window
*/
void FGAPIENTRY glutMenuStatusFunc( void (* callback)( int, int, int ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutMenuStatusFunc" );
fgState.MenuStatusCallback = callback;
}
/*
* Sets the overlay display callback for the current window
*/
void FGAPIENTRY glutOverlayDisplayFunc( void (* callback)( void ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutOverlayDisplayFunc" );
SET_CALLBACK( OverlayDisplay );
}
/*
* Sets the window status callback for the current window
*/
void FGAPIENTRY glutWindowStatusFunc( void (* callback)( int ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutWindowStatusFunc" );
SET_CALLBACK( WindowStatus );
}
/*
* Sets the spaceball motion callback for the current window
*/
void FGAPIENTRY glutSpaceballMotionFunc( void (* callback)( int, int, int ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSpaceballMotionFunc" );
fgInitialiseSpaceball();
SET_CALLBACK( SpaceMotion );
}
/*
* Sets the spaceball rotate callback for the current window
*/
void FGAPIENTRY glutSpaceballRotateFunc( void (* callback)( int, int, int ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSpaceballRotateFunc" );
fgInitialiseSpaceball();
SET_CALLBACK( SpaceRotation );
}
/*
* Sets the spaceball button callback for the current window
*/
void FGAPIENTRY glutSpaceballButtonFunc( void (* callback)( int, int ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSpaceballButtonFunc" );
fgInitialiseSpaceball();
SET_CALLBACK( SpaceButton );
}
/*
* Sets the button box callback for the current window
*/
void FGAPIENTRY glutButtonBoxFunc( void (* callback)( int, int ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutButtonBoxFunc" );
SET_CALLBACK( ButtonBox );
}
/*
* Sets the dials box callback for the current window
*/
void FGAPIENTRY glutDialsFunc( void (* callback)( int, int ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutDialsFunc" );
SET_CALLBACK( Dials );
}
/*
* Sets the tablet motion callback for the current window
*/
void FGAPIENTRY glutTabletMotionFunc( void (* callback)( int, int ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutTabletMotionFunc" );
SET_CALLBACK( TabletMotion );
}
/*
* Sets the tablet buttons callback for the current window
*/
void FGAPIENTRY glutTabletButtonFunc( void (* callback)( int, int, int, int ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutTabletButtonFunc" );
SET_CALLBACK( TabletButton );
}
/*
* Sets the multi-pointer entry callback for the current window
*/
void FGAPIENTRY glutMultiEntryFunc( void (* callback)(int, int ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutMultiEntryFunc" );
SET_CALLBACK( MultiEntry );
}
/*
* Sets the multi-pointer button callback for the current window
*/
void FGAPIENTRY glutMultiButtonFunc( void (* callback)(int, int, int, int, int ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutMultiButtonFunc" );
SET_CALLBACK( MultiButton );
}
/*
* Sets the multi-pointer motion callback for the current window
*/
void FGAPIENTRY glutMultiMotionFunc( void (* callback)(int, int, int ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutMultiMotionFunc" );
SET_CALLBACK( MultiMotion );
}
/*
* Sets the multi-pointer passive motion callback for the current window
*/
void FGAPIENTRY glutMultiPassiveFunc( void (* callback)(int, int, int ) )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutMultiPassiveFunc" );
SET_CALLBACK( MultiPassive );
}
/*** END OF FILE ***/