819e8645b6
to mark the window as *needing* a reshape (which during general display callback handling would result in effectively a glutReshapeWindow()). The code is now system-dependant. It should be abstracted to a function, but is presently copied in two places. Sorry. Also, inverted the order of the associated if()/else check (in both WIN32 and UNIX_X11 branches) since the former "else" part was a one-line callback invocation. This fixes two seemingly unrelated bugs that I was seeing in UNIX_X11. git-svn-id: https://svn.code.sf.net/p/freeglut/code/trunk@374 7f0cb862-5218-0410-a997-914c9d46530a
1780 lines
56 KiB
C
1780 lines
56 KiB
C
/*
|
|
* freeglut_main.c
|
|
*
|
|
* The windows message processing 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.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include "../include/GL/freeglut.h"
|
|
#include "freeglut_internal.h"
|
|
|
|
#include <limits.h>
|
|
#if TARGET_HOST_UNIX_X11
|
|
#include <sys/types.h>
|
|
#include <sys/time.h>
|
|
#include <unistd.h>
|
|
#include <errno.h>
|
|
#include <sys/stat.h>
|
|
#elif TARGET_HOST_WIN32
|
|
#endif
|
|
|
|
#ifndef MAX
|
|
#define MAX(a,b) (((a)>(b)) ? (a) : (b))
|
|
#endif
|
|
|
|
#ifndef MIN
|
|
#define MIN(a,b) (((a)<(b)) ? (a) : (b))
|
|
#endif
|
|
|
|
|
|
/*
|
|
* TODO BEFORE THE STABLE RELEASE:
|
|
*
|
|
* There are some issues concerning window redrawing under X11, and maybe
|
|
* some events are not handled. The Win32 version lacks some more features,
|
|
* but seems acceptable for not demanding purposes.
|
|
*
|
|
* Need to investigate why the X11 version breaks out with an error when
|
|
* closing a window (using the window manager, not glutDestroyWindow)...
|
|
*/
|
|
|
|
/* -- PRIVATE FUNCTIONS ---------------------------------------------------- */
|
|
|
|
/*
|
|
* Handle a window configuration change. When no reshape
|
|
* callback is hooked, the viewport size is updated to
|
|
* match the new window size.
|
|
*/
|
|
static void fghReshapeWindowByHandle ( SFG_WindowHandleType handle,
|
|
int width, int height )
|
|
{
|
|
SFG_Window *current_window = fgStructure.Window;
|
|
|
|
SFG_Window* window = fgWindowByHandle( handle );
|
|
freeglut_return_if_fail( window != NULL );
|
|
|
|
|
|
#if TARGET_HOST_UNIX_X11
|
|
|
|
XResizeWindow( fgDisplay.Display, window->Window.Handle,
|
|
width, height );
|
|
XFlush( fgDisplay.Display ); /* XXX Shouldn't need this */
|
|
|
|
#elif TARGET_HOST_WIN32
|
|
|
|
{
|
|
RECT winRect;
|
|
int x, y;
|
|
|
|
GetWindowRect( window->Window.Handle, &winRect );
|
|
x = winRect.left;
|
|
y = winRect.top;
|
|
|
|
if ( window->Parent == NULL )
|
|
{
|
|
/*
|
|
* Adjust the size of the window to allow for the size of the
|
|
* frame, if we are not a menu
|
|
*/
|
|
if ( ! window->IsMenu )
|
|
{
|
|
width += GetSystemMetrics( SM_CXSIZEFRAME ) * 2;
|
|
height += GetSystemMetrics( SM_CYSIZEFRAME ) * 2 +
|
|
GetSystemMetrics( SM_CYCAPTION );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
GetWindowRect( window->Parent->Window.Handle,
|
|
&winRect );
|
|
x -= winRect.left + GetSystemMetrics( SM_CXSIZEFRAME );
|
|
y -= winRect.top + GetSystemMetrics( SM_CYSIZEFRAME ) +
|
|
GetSystemMetrics( SM_CYCAPTION );
|
|
}
|
|
|
|
MoveWindow(
|
|
window->Window.Handle,
|
|
x,
|
|
y,
|
|
width,
|
|
height,
|
|
TRUE
|
|
);
|
|
}
|
|
|
|
if( FETCH_WCB( *window, Reshape ) )
|
|
INVOKE_WCB( *window, Reshape, ( width, height ) );
|
|
else
|
|
{
|
|
fgSetWindow( window );
|
|
glViewport( 0, 0, width, height );
|
|
}
|
|
|
|
#endif
|
|
|
|
/*
|
|
* Force a window redraw. In Windows at least this is only a partial
|
|
* solution: if the window is increasing in size in either dimension,
|
|
* the already-drawn part does not get drawn again and things look funny.
|
|
* But without this we get this bad behaviour whenever we resize the
|
|
* window.
|
|
*/
|
|
window->State.Redisplay = GL_TRUE;
|
|
|
|
if( window->IsMenu )
|
|
fgSetWindow( current_window );
|
|
}
|
|
|
|
/*
|
|
* Calls a window's redraw method. This is used when
|
|
* a redraw is forced by the incoming window messages.
|
|
*/
|
|
static void fghRedrawWindowByHandle ( SFG_WindowHandleType handle )
|
|
{
|
|
SFG_Window* window = fgWindowByHandle( handle );
|
|
freeglut_return_if_fail( window );
|
|
freeglut_return_if_fail( FETCH_WCB ( *window, Display ) );
|
|
|
|
window->State.Redisplay = GL_FALSE;
|
|
|
|
freeglut_return_if_fail( window->State.Visible );
|
|
|
|
if( window->State.NeedToResize )
|
|
{
|
|
SFG_Window *current_window = fgStructure.Window;
|
|
|
|
fgSetWindow( window );
|
|
|
|
fghReshapeWindowByHandle(
|
|
window->Window.Handle,
|
|
window->State.Width,
|
|
window->State.Height
|
|
);
|
|
|
|
window->State.NeedToResize = GL_FALSE;
|
|
fgSetWindow ( current_window );
|
|
}
|
|
|
|
INVOKE_WCB( *window, Display, ( ) );
|
|
}
|
|
|
|
/*
|
|
* A static helper function to execute display callback for a window
|
|
*/
|
|
static void fghcbDisplayWindow( SFG_Window *window,
|
|
SFG_Enumerator *enumerator )
|
|
{
|
|
if( window->State.Redisplay &&
|
|
window->State.Visible )
|
|
{
|
|
if( window->State.NeedToResize )
|
|
{
|
|
SFG_Window *current_window = fgStructure.Window;
|
|
|
|
fgSetWindow( window );
|
|
|
|
fghReshapeWindowByHandle(
|
|
window->Window.Handle,
|
|
window->State.Width,
|
|
window->State.Height
|
|
);
|
|
|
|
window->State.NeedToResize = GL_FALSE;
|
|
fgSetWindow ( current_window );
|
|
}
|
|
|
|
window->State.Redisplay = GL_FALSE;
|
|
|
|
#if TARGET_HOST_UNIX_X11
|
|
{
|
|
SFG_Window *current_window = fgStructure.Window;
|
|
|
|
INVOKE_WCB( *window, Display, ( ) );
|
|
fgSetWindow( current_window );
|
|
}
|
|
#elif TARGET_HOST_WIN32
|
|
RedrawWindow(
|
|
window->Window.Handle, NULL, NULL,
|
|
RDW_NOERASE | RDW_INTERNALPAINT | RDW_INVALIDATE | RDW_UPDATENOW
|
|
);
|
|
#endif
|
|
}
|
|
|
|
fgEnumSubWindows( window, fghcbDisplayWindow, enumerator );
|
|
}
|
|
|
|
/*
|
|
* Make all windows perform a display call
|
|
*/
|
|
static void fghDisplayAll( void )
|
|
{
|
|
SFG_Enumerator enumerator;
|
|
|
|
enumerator.found = GL_FALSE;
|
|
enumerator.data = NULL;
|
|
|
|
fgEnumWindows( fghcbDisplayWindow, &enumerator );
|
|
}
|
|
|
|
/*
|
|
* Window enumerator callback to check for the joystick polling code
|
|
*/
|
|
static void fghcbCheckJoystickPolls( SFG_Window *window,
|
|
SFG_Enumerator *enumerator )
|
|
{
|
|
long int checkTime = fgElapsedTime( );
|
|
|
|
if( window->State.JoystickLastPoll + window->State.JoystickPollRate <=
|
|
checkTime )
|
|
{
|
|
fgJoystickPollWindow( window );
|
|
window->State.JoystickLastPoll = checkTime;
|
|
}
|
|
|
|
fgEnumSubWindows( window, fghcbCheckJoystickPolls, enumerator );
|
|
}
|
|
|
|
/*
|
|
* Check all windows for joystick polling
|
|
*/
|
|
static void fghCheckJoystickPolls( void )
|
|
{
|
|
SFG_Enumerator enumerator;
|
|
|
|
enumerator.found = GL_FALSE;
|
|
enumerator.data = NULL;
|
|
|
|
fgEnumWindows( fghcbCheckJoystickPolls, &enumerator );
|
|
}
|
|
|
|
/*
|
|
* Check the global timers
|
|
*/
|
|
static void fghCheckTimers( void )
|
|
{
|
|
long checkTime = fgElapsedTime( );
|
|
SFG_Timer *timer;
|
|
|
|
while( timer = fgState.Timers.First )
|
|
{
|
|
if( timer->TriggerTime > checkTime )
|
|
break;
|
|
|
|
fgListRemove( &fgState.Timers, &timer->Node );
|
|
fgListAppend( &fgState.FreeTimers, &timer->Node );
|
|
|
|
timer->Callback( timer->ID );
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Elapsed Time
|
|
*/
|
|
long fgElapsedTime( void )
|
|
{
|
|
if ( fgState.Time.Set )
|
|
{
|
|
#if TARGET_HOST_UNIX_X11
|
|
struct timeval now;
|
|
long elapsed;
|
|
|
|
gettimeofday( &now, NULL );
|
|
|
|
elapsed = (now.tv_usec - fgState.Time.Value.tv_usec) / 1000;
|
|
elapsed += (now.tv_sec - fgState.Time.Value.tv_sec) * 1000;
|
|
|
|
return elapsed;
|
|
#elif TARGET_HOST_WIN32
|
|
return timeGetTime() - fgState.Time.Value;
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
#if TARGET_HOST_UNIX_X11
|
|
gettimeofday( &fgState.Time.Value, NULL );
|
|
#elif TARGET_HOST_WIN32
|
|
fgState.Time.Value = timeGetTime ();
|
|
#endif
|
|
fgState.Time.Set = GL_TRUE ;
|
|
|
|
return 0 ;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Error Messages.
|
|
*/
|
|
void fgError( const char *fmt, ... )
|
|
{
|
|
va_list ap;
|
|
|
|
va_start( ap, fmt );
|
|
|
|
fprintf( stderr, "freeglut ");
|
|
if( fgState.ProgramName )
|
|
fprintf (stderr, "(%s): ", fgState.ProgramName);
|
|
vfprintf( stderr, fmt, ap );
|
|
fprintf( stderr, "\n" );
|
|
|
|
va_end( ap );
|
|
|
|
if ( fgState.Initialised )
|
|
fgDeinitialize ();
|
|
|
|
exit( 1 );
|
|
}
|
|
|
|
void fgWarning( const char *fmt, ... )
|
|
{
|
|
va_list ap;
|
|
|
|
va_start( ap, fmt );
|
|
|
|
fprintf( stderr, "freeglut ");
|
|
if( fgState.ProgramName )
|
|
fprintf( stderr, "(%s): ", fgState.ProgramName );
|
|
vfprintf( stderr, fmt, ap );
|
|
fprintf( stderr, "\n" );
|
|
|
|
va_end( ap );
|
|
}
|
|
|
|
/*
|
|
* Indicates whether Joystick events are being used by ANY window.
|
|
*
|
|
* The current mechanism is to walk all of the windows and ask if
|
|
* there is a joystick callback. Certainly in some cases, maybe
|
|
* in all cases, the joystick is attached to the system and accessed
|
|
* from ONE point by GLUT/freeglut, so this is not the right way,
|
|
* in general, to do this. However, the Joystick code is segregated
|
|
* in its own little world, so we can't access the information that
|
|
* we need in order to do that nicely.
|
|
*
|
|
* Some alternatives:
|
|
* * Store Joystick data into freeglut global state.
|
|
* * Provide NON-static functions or data from Joystick *.c file.
|
|
*
|
|
* Basically, the RIGHT way to do this requires knowing something
|
|
* about the Joystick. Right now, the Joystick code is behind
|
|
* an opaque wall.
|
|
*
|
|
*/
|
|
static void fgCheckJoystickCallback( SFG_Window* w, SFG_Enumerator* e)
|
|
{
|
|
if( FETCH_WCB( *w, Joystick ) )
|
|
{
|
|
e->found = GL_TRUE;
|
|
e->data = w;
|
|
}
|
|
fgEnumSubWindows( w, fgCheckJoystickCallback, e );
|
|
}
|
|
static int fgHaveJoystick( void )
|
|
{
|
|
SFG_Enumerator enumerator;
|
|
enumerator.found = GL_FALSE;
|
|
enumerator.data = NULL;
|
|
fgEnumWindows( fgCheckJoystickCallback, &enumerator );
|
|
return !!enumerator.data;
|
|
}
|
|
static void fgHavePendingRedisplaysCallback( SFG_Window* w, SFG_Enumerator* e)
|
|
{
|
|
if( w->State.Redisplay )
|
|
{
|
|
e->found = GL_TRUE;
|
|
e->data = w;
|
|
}
|
|
fgEnumSubWindows( w, fgHavePendingRedisplaysCallback, e );
|
|
}
|
|
static int fgHavePendingRedisplays (void)
|
|
{
|
|
SFG_Enumerator enumerator;
|
|
enumerator.found = GL_FALSE;
|
|
enumerator.data = NULL;
|
|
fgEnumWindows( fgHavePendingRedisplaysCallback, &enumerator );
|
|
return !!enumerator.data;
|
|
}
|
|
/*
|
|
* Returns the number of GLUT ticks (milliseconds) till the next timer event.
|
|
*/
|
|
static long fgNextTimer( void )
|
|
{
|
|
long ret = INT_MAX;
|
|
SFG_Timer *timer;
|
|
|
|
if( (timer = fgState.Timers.First) )
|
|
ret = timer->TriggerTime - fgElapsedTime();
|
|
|
|
return ret;
|
|
}
|
|
/*
|
|
* Does the magic required to relinquish the CPU until something interesting
|
|
* happens.
|
|
*/
|
|
static void fgSleepForEvents( void )
|
|
{
|
|
#if TARGET_HOST_UNIX_X11
|
|
fd_set fdset;
|
|
int err;
|
|
int socket;
|
|
struct timeval wait;
|
|
long msec;
|
|
|
|
if( fgState.IdleCallback || fgHavePendingRedisplays( ) )
|
|
return;
|
|
socket = ConnectionNumber( fgDisplay.Display );
|
|
FD_ZERO( &fdset );
|
|
FD_SET( socket, &fdset );
|
|
|
|
msec = fgNextTimer( );
|
|
if( fgHaveJoystick( ) )
|
|
msec = MIN( msec, 10 );
|
|
|
|
wait.tv_sec = msec / 1000;
|
|
wait.tv_usec = (msec % 1000) * 1000;
|
|
err = select( socket+1, &fdset, NULL, NULL, &wait );
|
|
|
|
if( -1 == err )
|
|
fgWarning ( "freeglut select() error: %d\n", errno );
|
|
|
|
#elif TARGET_HOST_WIN32
|
|
#endif
|
|
}
|
|
|
|
#if TARGET_HOST_UNIX_X11
|
|
/*
|
|
* Returns GLUT modifier mask for an XEvent.
|
|
*/
|
|
int fgGetXModifiers( XEvent *event )
|
|
{
|
|
int ret = 0;
|
|
|
|
if( event->xkey.state & ( ShiftMask | LockMask ) )
|
|
ret |= GLUT_ACTIVE_SHIFT;
|
|
if( event->xkey.state & ControlMask )
|
|
ret |= GLUT_ACTIVE_CTRL;
|
|
if( event->xkey.state & Mod1Mask )
|
|
ret |= GLUT_ACTIVE_ALT;
|
|
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
|
|
/* -- INTERFACE FUNCTIONS -------------------------------------------------- */
|
|
|
|
/*
|
|
* Executes a single iteration in the freeglut processing loop.
|
|
*/
|
|
void FGAPIENTRY glutMainLoopEvent( void )
|
|
{
|
|
#if TARGET_HOST_UNIX_X11
|
|
SFG_Window* window;
|
|
XEvent event;
|
|
|
|
/*
|
|
* This code was repeated constantly, so here it goes into a definition:
|
|
*/
|
|
#define GETWINDOW(a) \
|
|
window = fgWindowByHandle( event.a.window ); \
|
|
if( window == NULL ) \
|
|
break;
|
|
|
|
#define GETMOUSE(a) \
|
|
window->State.MouseX = event.a.x; \
|
|
window->State.MouseY = event.a.y;
|
|
|
|
freeglut_assert_ready;
|
|
|
|
while( XPending( fgDisplay.Display ) )
|
|
{
|
|
XNextEvent( fgDisplay.Display, &event );
|
|
|
|
switch( event.type )
|
|
{
|
|
case ClientMessage:
|
|
/*
|
|
* Destroy the window when the WM_DELETE_WINDOW message arrives
|
|
*/
|
|
if( (Atom) event.xclient.data.l[ 0 ] == fgDisplay.DeleteWindow )
|
|
{
|
|
GETWINDOW( xclient );
|
|
|
|
fgDestroyWindow ( window );
|
|
|
|
if( fgState.ActionOnWindowClose == GLUT_ACTION_EXIT )
|
|
{
|
|
fgDeinitialize( );
|
|
exit( 0 );
|
|
}
|
|
|
|
fgState.ExecState = GLUT_EXEC_STATE_STOP;
|
|
return;
|
|
}
|
|
break;
|
|
|
|
/*
|
|
* CreateNotify causes a configure-event so that sub-windows are
|
|
* handled compatibly with GLUT. Otherwise, your sub-windows
|
|
* (in freeglut only) will not get an initial reshape event,
|
|
* which can break things.
|
|
*
|
|
* XXX NOTE that it is possible that you will more than one Reshape
|
|
* XXX event for your top-level window, but something like this
|
|
* XXX appears to be required for compatbility.
|
|
*
|
|
* GLUT presumably does this because it generally tries to treat
|
|
* sub-windows the same as windows.
|
|
*/
|
|
case CreateNotify:
|
|
case ConfigureNotify:
|
|
GETWINDOW( xconfigure );
|
|
{
|
|
int width = event.xconfigure.width;
|
|
int height = event.xconfigure.height;
|
|
|
|
GETWINDOW( xconfigure );
|
|
if( FETCH_WCB( *window, Reshape ) )
|
|
INVOKE_WCB( *window, Reshape, ( width, height ) );
|
|
else
|
|
{
|
|
fgSetWindow( window );
|
|
glViewport( 0, 0, width, height );
|
|
}
|
|
}
|
|
break;
|
|
|
|
case DestroyNotify:
|
|
/*
|
|
* This is sent to confirm the XDestroyWindow call.
|
|
* XXX WHY is this commented out? Should we re-enable it?
|
|
*/
|
|
/* fgAddToWindowDestroyList ( window ); */
|
|
break;
|
|
|
|
case Expose:
|
|
/*
|
|
* We are too dumb to process partial exposes...
|
|
* XXX Well, we could do it. However, it seems to only
|
|
* XXX be potentially useful for single-buffered (since
|
|
* XXX double-buffered does not respect viewport when we
|
|
* XXX do a buffer-swap).
|
|
*/
|
|
if( event.xexpose.count == 0 )
|
|
fghRedrawWindowByHandle( event.xexpose.window );
|
|
break;
|
|
|
|
case MapNotify:
|
|
case UnmapNotify:
|
|
/*
|
|
* If we never do anything with this, can we just not ask to
|
|
* get these messages?
|
|
*/
|
|
break;
|
|
|
|
case MappingNotify:
|
|
/*
|
|
* Have the client's keyboard knowledge updated (xlib.ps,
|
|
* page 206, says that's a good thing to do)
|
|
*/
|
|
XRefreshKeyboardMapping( (XMappingEvent *) &event );
|
|
break;
|
|
|
|
case VisibilityNotify:
|
|
{
|
|
GETWINDOW( xvisibility );
|
|
if( ! FETCH_WCB( *window, WindowStatus ) )
|
|
break;
|
|
fgSetWindow( window );
|
|
|
|
/*
|
|
* Sending this event, the X server can notify us that the window
|
|
* has just acquired one of the three possible visibility states:
|
|
* VisibilityUnobscured, VisibilityPartiallyObscured or
|
|
* VisibilityFullyObscured
|
|
*/
|
|
switch( event.xvisibility.state )
|
|
{
|
|
case VisibilityUnobscured:
|
|
INVOKE_WCB( *window, WindowStatus, ( GLUT_FULLY_RETAINED ) );
|
|
window->State.Visible = GL_TRUE;
|
|
break;
|
|
|
|
case VisibilityPartiallyObscured:
|
|
INVOKE_WCB( *window, WindowStatus,
|
|
( GLUT_PARTIALLY_RETAINED ) );
|
|
window->State.Visible = GL_TRUE;
|
|
break;
|
|
|
|
case VisibilityFullyObscured:
|
|
INVOKE_WCB( *window, WindowStatus, ( GLUT_FULLY_COVERED ) );
|
|
window->State.Visible = GL_FALSE;
|
|
break;
|
|
|
|
default:
|
|
fgWarning( "Uknown X visibility state: %d",
|
|
event.xvisibility.state );
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case EnterNotify:
|
|
case LeaveNotify:
|
|
GETWINDOW( xcrossing );
|
|
GETMOUSE( xcrossing );
|
|
INVOKE_WCB( *window, Entry, ( ( EnterNotify == event.type ) ?
|
|
GLUT_ENTERED :
|
|
GLUT_LEFT ) );
|
|
break;
|
|
|
|
case MotionNotify:
|
|
{
|
|
GETWINDOW( xmotion );
|
|
GETMOUSE( xmotion );
|
|
|
|
if( window->ActiveMenu )
|
|
{
|
|
if( window == window->ActiveMenu->ParentWindow )
|
|
{
|
|
window->ActiveMenu->Window->State.MouseX =
|
|
event.xmotion.x_root - window->ActiveMenu->X;
|
|
window->ActiveMenu->Window->State.MouseY =
|
|
event.xmotion.y_root - window->ActiveMenu->Y;
|
|
}
|
|
window->ActiveMenu->Window->State.Redisplay = GL_TRUE ;
|
|
fgSetWindow( window->ActiveMenu->ParentWindow );
|
|
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* XXX For more than 5 buttons, just check {event.xmotion.state},
|
|
* XXX rather than a host of bit-masks?
|
|
*/
|
|
#define BUTTON_MASK \
|
|
( Button1Mask | Button2Mask | Button3Mask | Button4Mask | Button5Mask )
|
|
if ( event.xmotion.state & BUTTON_MASK )
|
|
INVOKE_WCB( *window, Motion, ( event.xmotion.x,
|
|
event.xmotion.y ) );
|
|
else
|
|
INVOKE_WCB( *window, Passive, ( event.xmotion.x,
|
|
event.xmotion.y ) );
|
|
}
|
|
break;
|
|
|
|
case ButtonRelease:
|
|
case ButtonPress:
|
|
{
|
|
GLboolean pressed = GL_TRUE;
|
|
int button;
|
|
|
|
if( event.type == ButtonRelease )
|
|
pressed = GL_FALSE ;
|
|
|
|
/*
|
|
* A mouse button has been pressed or released. Traditionally,
|
|
* break if the window was found within the freeglut structures.
|
|
*/
|
|
GETWINDOW( xbutton );
|
|
GETMOUSE( xbutton );
|
|
|
|
/*
|
|
* An X button (at least in XFree86) is numbered from 1.
|
|
* A GLUT button is numbered from 0.
|
|
* Old GLUT passed through buttons other than just the first
|
|
* three, though it only gave symbolic names and official
|
|
* support to the first three.
|
|
*/
|
|
button = event.xbutton.button - 1;
|
|
|
|
/*
|
|
* XXX This comment is replicated in the WIN32 section and
|
|
* XXX maybe also in the menu code. Can we move the info
|
|
* XXX to one central place and *reference* it from here?
|
|
*
|
|
* Do not execute the application's mouse callback if a menu
|
|
* is hooked to this button. In that case an appropriate
|
|
* private call should be generated.
|
|
* Near as I can tell, this is the menu behaviour:
|
|
* - Down-click the menu button, menu not active: activate
|
|
* the menu with its upper left-hand corner at the mouse
|
|
* location.
|
|
* - Down-click any button outside the menu, menu active:
|
|
* deactivate the menu
|
|
* - Down-click any button inside the menu, menu active:
|
|
* select the menu entry and deactivate the menu
|
|
* - Up-click the menu button, menu not active: nothing happens
|
|
* - Up-click the menu button outside the menu, menu active:
|
|
* nothing happens
|
|
* - Up-click the menu button inside the menu, menu active:
|
|
* select the menu entry and deactivate the menu
|
|
*/
|
|
/* Window has an active menu, it absorbs any mouse click */
|
|
if( window->ActiveMenu )
|
|
{
|
|
if( window == window->ActiveMenu->ParentWindow )
|
|
{
|
|
window->ActiveMenu->Window->State.MouseX =
|
|
event.xbutton.x_root - window->ActiveMenu->X;
|
|
window->ActiveMenu->Window->State.MouseY =
|
|
event.xbutton.y_root - window->ActiveMenu->Y;
|
|
}
|
|
|
|
/* In the menu, invoke the callback and deactivate the menu*/
|
|
if( fgCheckActiveMenu( window->ActiveMenu->Window,
|
|
window->ActiveMenu ) )
|
|
{
|
|
/*
|
|
* Save the current window and menu and set the current
|
|
* window to the window whose menu this is
|
|
*/
|
|
SFG_Window *save_window = fgStructure.Window;
|
|
SFG_Menu *save_menu = fgStructure.Menu;
|
|
SFG_Window *parent_window =
|
|
window->ActiveMenu->ParentWindow;
|
|
fgSetWindow( parent_window );
|
|
fgStructure.Menu = window->ActiveMenu;
|
|
|
|
/* Execute the menu callback */
|
|
fgExecuteMenuCallback( window->ActiveMenu );
|
|
fgDeactivateMenu( parent_window );
|
|
|
|
/* Restore the current window and menu */
|
|
fgSetWindow( save_window );
|
|
fgStructure.Menu = save_menu;
|
|
}
|
|
else if( pressed )
|
|
/*
|
|
* Outside the menu, deactivate if it's a downclick
|
|
* XXX This isn't enough. A downclick outside of
|
|
* XXX the interior of our freeglut windows should also
|
|
* XXX deactivate the menu. This is more complicated.
|
|
*/
|
|
fgDeactivateMenu( window->ActiveMenu->ParentWindow );
|
|
|
|
window->State.Redisplay = GL_TRUE;
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* No active menu, let's check whether we need to activate one.
|
|
*/
|
|
if( ( 0 <= button ) &&
|
|
( FREEGLUT_MAX_MENUS > button ) &&
|
|
( window->Menu[ button ] ) &&
|
|
pressed )
|
|
{
|
|
window->State.Redisplay = GL_TRUE;
|
|
fgSetWindow( window );
|
|
fgActivateMenu( window, button );
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Check if there is a mouse or mouse wheel callback hooked to the
|
|
* window
|
|
*/
|
|
if( ! FETCH_WCB( *window, Mouse ) &&
|
|
! FETCH_WCB( *window, MouseWheel ) )
|
|
break;
|
|
|
|
fgState.Modifiers = fgGetXModifiers( &event );
|
|
|
|
/*
|
|
* Finally execute the mouse or mouse wheel callback
|
|
*
|
|
* XXX Use a symbolic constant, *not* "4"!
|
|
*/
|
|
if( ( button < 3 ) || ( ! FETCH_WCB( *window, MouseWheel ) ) )
|
|
INVOKE_WCB( *window, Mouse, ( button,
|
|
pressed ? GLUT_DOWN : GLUT_UP,
|
|
event.xbutton.x,
|
|
event.xbutton.y )
|
|
);
|
|
else
|
|
{
|
|
/*
|
|
* Map 4 and 5 to wheel zero; EVEN to +1, ODD to -1
|
|
* " 6 and 7 " " one; ...
|
|
*
|
|
* XXX This *should* be behind some variables/macros,
|
|
* XXX since the order and numbering isn't certain
|
|
* XXX See XFree86 configuration docs (even back in the
|
|
* XXX 3.x days, and especially with 4.x).
|
|
*
|
|
* XXX Note that {button} has already been decremeted
|
|
* XXX in mapping from X button numbering to GLUT.
|
|
*/
|
|
int wheel_number = (button - 3) / 2;
|
|
int direction = -1;
|
|
if( button % 2 )
|
|
direction = 1;
|
|
|
|
if( pressed )
|
|
INVOKE_WCB( *window, MouseWheel, ( wheel_number,
|
|
direction,
|
|
event.xbutton.x,
|
|
event.xbutton.y )
|
|
);
|
|
}
|
|
|
|
/*
|
|
* Trash the modifiers state
|
|
*/
|
|
fgState.Modifiers = 0xffffffff;
|
|
}
|
|
break;
|
|
|
|
case KeyRelease:
|
|
case KeyPress:
|
|
{
|
|
FGCBKeyboard keyboard_cb;
|
|
FGCBSpecial special_cb;
|
|
|
|
GETWINDOW( xkey );
|
|
GETMOUSE( xkey );
|
|
|
|
if( event.type == KeyPress )
|
|
{
|
|
keyboard_cb = FETCH_WCB( *window, Keyboard );
|
|
special_cb = FETCH_WCB( *window, Special );
|
|
}
|
|
else
|
|
{
|
|
keyboard_cb = FETCH_WCB( *window, KeyboardUp );
|
|
special_cb = FETCH_WCB( *window, SpecialUp );
|
|
}
|
|
|
|
/*
|
|
* Is there a keyboard/special callback hooked for this window?
|
|
*/
|
|
if( keyboard_cb || special_cb )
|
|
{
|
|
XComposeStatus composeStatus;
|
|
char asciiCode[ 32 ];
|
|
KeySym keySym;
|
|
int len;
|
|
|
|
/*
|
|
* Check for the ASCII/KeySym codes associated with the event:
|
|
*/
|
|
len = XLookupString( &event.xkey, asciiCode, sizeof(asciiCode),
|
|
&keySym, &composeStatus
|
|
);
|
|
|
|
/*
|
|
* GLUT API tells us to have two separate callbacks...
|
|
*/
|
|
if( len > 0 )
|
|
{
|
|
/*
|
|
* ...one for the ASCII translateable keypresses...
|
|
*/
|
|
if( keyboard_cb )
|
|
{
|
|
fgSetWindow( window );
|
|
fgState.Modifiers = fgGetXModifiers( &event );
|
|
keyboard_cb( asciiCode[ 0 ],
|
|
event.xkey.x, event.xkey.y
|
|
);
|
|
fgState.Modifiers = 0xffffffff;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
int special = -1;
|
|
|
|
/*
|
|
* ...and one for all the others, which need to be
|
|
* translated to GLUT_KEY_Xs...
|
|
*/
|
|
switch( keySym )
|
|
{
|
|
case XK_F1: special = GLUT_KEY_F1; break;
|
|
case XK_F2: special = GLUT_KEY_F2; break;
|
|
case XK_F3: special = GLUT_KEY_F3; break;
|
|
case XK_F4: special = GLUT_KEY_F4; break;
|
|
case XK_F5: special = GLUT_KEY_F5; break;
|
|
case XK_F6: special = GLUT_KEY_F6; break;
|
|
case XK_F7: special = GLUT_KEY_F7; break;
|
|
case XK_F8: special = GLUT_KEY_F8; break;
|
|
case XK_F9: special = GLUT_KEY_F9; break;
|
|
case XK_F10: special = GLUT_KEY_F10; break;
|
|
case XK_F11: special = GLUT_KEY_F11; break;
|
|
case XK_F12: special = GLUT_KEY_F12; break;
|
|
|
|
case XK_Left: special = GLUT_KEY_LEFT; break;
|
|
case XK_Right: special = GLUT_KEY_RIGHT; break;
|
|
case XK_Up: special = GLUT_KEY_UP; break;
|
|
case XK_Down: special = GLUT_KEY_DOWN; break;
|
|
|
|
case XK_KP_Prior:
|
|
case XK_Prior: special = GLUT_KEY_PAGE_UP; break;
|
|
case XK_KP_Next:
|
|
case XK_Next: special = GLUT_KEY_PAGE_DOWN; break;
|
|
case XK_KP_Home:
|
|
case XK_Home: special = GLUT_KEY_HOME; break;
|
|
case XK_KP_End:
|
|
case XK_End: special = GLUT_KEY_END; break;
|
|
case XK_KP_Insert:
|
|
case XK_Insert: special = GLUT_KEY_INSERT; break;
|
|
}
|
|
|
|
/*
|
|
* Execute the callback (if one has been specified),
|
|
* given that the special code seems to be valid...
|
|
*/
|
|
if( special_cb && (special != -1) )
|
|
{
|
|
fgSetWindow( window );
|
|
fgState.Modifiers = fgGetXModifiers( &event );
|
|
special_cb( special, event.xkey.x, event.xkey.y );
|
|
fgState.Modifiers = 0xffffffff;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case ReparentNotify:
|
|
break; /* XXX Should disable this event */
|
|
|
|
default:
|
|
fgWarning ("Unknown X event type: %d", event.type);
|
|
break;
|
|
}
|
|
}
|
|
|
|
#elif TARGET_HOST_WIN32
|
|
|
|
MSG stMsg;
|
|
|
|
while( PeekMessage( &stMsg, NULL, 0, 0, PM_NOREMOVE ) )
|
|
{
|
|
if( GetMessage( &stMsg, NULL, 0, 0 ) == 0 )
|
|
{
|
|
if( fgState.ActionOnWindowClose == GLUT_ACTION_EXIT )
|
|
{
|
|
fgDeinitialize( );
|
|
exit( 0 );
|
|
}
|
|
fgState.ExecState = GLUT_EXEC_STATE_STOP;
|
|
return;
|
|
}
|
|
|
|
TranslateMessage( &stMsg );
|
|
DispatchMessage( &stMsg );
|
|
}
|
|
#endif
|
|
|
|
if( fgState.Timers.First )
|
|
fghCheckTimers( );
|
|
fghCheckJoystickPolls( );
|
|
fghDisplayAll( );
|
|
|
|
fgCloseWindows( );
|
|
}
|
|
|
|
/*
|
|
* Enters the freeglut processing loop.
|
|
* Stays until the "ExecState" changes to "GLUT_EXEC_STATE_STOP".
|
|
*/
|
|
void FGAPIENTRY glutMainLoop( void )
|
|
{
|
|
#if TARGET_HOST_WIN32
|
|
SFG_Window *window = (SFG_Window *)fgStructure.Windows.First ;
|
|
#endif
|
|
|
|
freeglut_assert_ready;
|
|
|
|
#if TARGET_HOST_WIN32
|
|
/*
|
|
* Processing before the main loop: If there is a window which is open and
|
|
* which has a visibility callback, call it. I know this is an ugly hack,
|
|
* but I'm not sure what else to do about it. Ideally we should leave
|
|
* something uninitialized in the create window code and initialize it in
|
|
* the main loop, and have that initialization create a "WM_ACTIVATE"
|
|
* message. Then we would put the visibility callback code in the
|
|
* "case WM_ACTIVATE" block below. - John Fay -- 10/24/02
|
|
*/
|
|
while( window )
|
|
{
|
|
if ( FETCH_WCB( *window, Visibility ) )
|
|
{
|
|
SFG_Window *current_window = fgStructure.Window ;
|
|
|
|
INVOKE_WCB( *window, Visibility, ( window->State.Visible ) );
|
|
fgSetWindow( current_window );
|
|
}
|
|
|
|
window = (SFG_Window *)window->Node.Next ;
|
|
}
|
|
#endif
|
|
|
|
fgState.ExecState = GLUT_EXEC_STATE_RUNNING ;
|
|
while( fgState.ExecState == GLUT_EXEC_STATE_RUNNING )
|
|
{
|
|
glutMainLoopEvent( );
|
|
|
|
if( fgStructure.Windows.First == NULL )
|
|
fgState.ExecState = GLUT_EXEC_STATE_STOP;
|
|
else
|
|
{
|
|
if( fgState.IdleCallback )
|
|
fgState.IdleCallback( );
|
|
|
|
fgSleepForEvents();
|
|
}
|
|
}
|
|
|
|
/*
|
|
* When this loop terminates, destroy the display, state and structure
|
|
* of a freeglut session, so that another glutInit() call can happen
|
|
*/
|
|
fgDeinitialize( );
|
|
}
|
|
|
|
/*
|
|
* Leaves the freeglut processing loop.
|
|
*/
|
|
void FGAPIENTRY glutLeaveMainLoop( void )
|
|
{
|
|
fgState.ExecState = GLUT_EXEC_STATE_STOP ;
|
|
}
|
|
|
|
|
|
#if TARGET_HOST_WIN32
|
|
/*
|
|
* Determine a GLUT modifer mask based on MS-WINDOWS system info.
|
|
*/
|
|
int fgGetWin32Modifiers (void)
|
|
{
|
|
return
|
|
( ( ( GetKeyState( VK_LSHIFT ) < 0 ) ||
|
|
( GetKeyState( VK_RSHIFT ) < 0 )) ? GLUT_ACTIVE_SHIFT : 0 ) |
|
|
( ( ( GetKeyState( VK_LCONTROL ) < 0 ) ||
|
|
( GetKeyState( VK_RCONTROL ) < 0 )) ? GLUT_ACTIVE_CTRL : 0 ) |
|
|
( ( ( GetKeyState( VK_LMENU ) < 0 ) ||
|
|
( GetKeyState( VK_RMENU ) < 0 )) ? GLUT_ACTIVE_ALT : 0 );
|
|
}
|
|
|
|
/*
|
|
* The window procedure for handling Win32 events
|
|
*/
|
|
LRESULT CALLBACK fgWindowProc( HWND hWnd, UINT uMsg, WPARAM wParam,
|
|
LPARAM lParam )
|
|
{
|
|
SFG_Window* window = fgWindowByHandle( hWnd );
|
|
PAINTSTRUCT ps;
|
|
LONG lRet = 1;
|
|
|
|
if ( ( window == NULL ) && ( uMsg != WM_CREATE ) )
|
|
return DefWindowProc( hWnd, uMsg, wParam, lParam );
|
|
|
|
/* printf ( "Window %3d message <%04x> %12d %12d\n", window?window->ID:0,
|
|
uMsg, wParam, lParam ); */
|
|
switch( uMsg )
|
|
{
|
|
case WM_CREATE:
|
|
/*
|
|
* The window structure is passed as the creation structure paramter...
|
|
*/
|
|
window = (SFG_Window *) (((LPCREATESTRUCT) lParam)->lpCreateParams);
|
|
assert( window != NULL );
|
|
|
|
window->Window.Handle = hWnd;
|
|
window->Window.Device = GetDC( hWnd );
|
|
if( window->IsMenu )
|
|
{
|
|
unsigned int current_DisplayMode = fgState.DisplayMode;
|
|
fgState.DisplayMode = GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH;
|
|
fgSetupPixelFormat( window, GL_FALSE, PFD_MAIN_PLANE );
|
|
fgState.DisplayMode = current_DisplayMode;
|
|
|
|
if( fgStructure.MenuContext )
|
|
wglMakeCurrent( window->Window.Device,
|
|
fgStructure.MenuContext->Context
|
|
);
|
|
else
|
|
{
|
|
fgStructure.MenuContext =
|
|
(SFG_MenuContext *)malloc( sizeof(SFG_MenuContext) );
|
|
fgStructure.MenuContext->Context =
|
|
wglCreateContext( window->Window.Device );
|
|
}
|
|
|
|
/* window->Window.Context = wglGetCurrentContext (); */
|
|
window->Window.Context = wglCreateContext( window->Window.Device );
|
|
}
|
|
else
|
|
{
|
|
fgSetupPixelFormat( window, GL_FALSE, PFD_MAIN_PLANE );
|
|
|
|
if( ! fgState.UseCurrentContext )
|
|
window->Window.Context =
|
|
wglCreateContext( window->Window.Device );
|
|
else
|
|
{
|
|
window->Window.Context = wglGetCurrentContext( );
|
|
if( ! window->Window.Context )
|
|
window->Window.Context =
|
|
wglCreateContext( window->Window.Device );
|
|
}
|
|
}
|
|
|
|
window->State.NeedToResize = GL_TRUE;
|
|
window->State.Width = fgState.Size.X;
|
|
window->State.Height = fgState.Size.Y;
|
|
|
|
ReleaseDC( window->Window.Handle, window->Window.Device );
|
|
break;
|
|
|
|
case WM_SIZE:
|
|
/*
|
|
* We got resized... But check if the window has been already added...
|
|
*/
|
|
window->State.NeedToResize = GL_TRUE;
|
|
window->State.Width = LOWORD(lParam);
|
|
window->State.Height = HIWORD(lParam);
|
|
break;
|
|
#if 0
|
|
case WM_SETFOCUS:
|
|
printf("WM_SETFOCUS: %p\n", window );
|
|
lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
|
|
break;
|
|
|
|
case WM_ACTIVATE:
|
|
if (LOWORD(wParam) != WA_INACTIVE)
|
|
{
|
|
/* glutSetCursor( fgStructure.Window->State.Cursor ); */
|
|
printf("WM_ACTIVATE: glutSetCursor( %p, %d)\n", window,
|
|
window->State.Cursor );
|
|
glutSetCursor( window->State.Cursor );
|
|
}
|
|
|
|
lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
|
|
break;
|
|
#endif
|
|
|
|
/*
|
|
* XXX Why not re-use some common code with the glutSetCursor()
|
|
* XXX function (or perhaps invoke glutSetCursor())?
|
|
* XXX That is, why are we duplicating code, here, from
|
|
* XXX glutSetCursor()? The WIN32 code should be able to just
|
|
* XXX call glutSetCurdsor() instead of defining two macros
|
|
* XXX and implementing a nested case in-line.
|
|
*/
|
|
case WM_SETCURSOR:
|
|
/* Set the cursor AND change it for this window class. */
|
|
#define MAP_CURSOR(a,b) \
|
|
case a: \
|
|
SetCursor( LoadCursor( NULL, b ) ); \
|
|
break;
|
|
|
|
/* Nuke the cursor AND change it for this window class. */
|
|
#define ZAP_CURSOR(a,b) \
|
|
case a: \
|
|
SetCursor( NULL ); \
|
|
break;
|
|
|
|
if( LOWORD( lParam ) == HTCLIENT )
|
|
switch( window->State.Cursor )
|
|
{
|
|
MAP_CURSOR( GLUT_CURSOR_RIGHT_ARROW, IDC_ARROW );
|
|
MAP_CURSOR( GLUT_CURSOR_LEFT_ARROW, IDC_ARROW );
|
|
MAP_CURSOR( GLUT_CURSOR_INFO, IDC_HELP );
|
|
MAP_CURSOR( GLUT_CURSOR_DESTROY, IDC_CROSS );
|
|
MAP_CURSOR( GLUT_CURSOR_HELP, IDC_HELP );
|
|
MAP_CURSOR( GLUT_CURSOR_CYCLE, IDC_SIZEALL );
|
|
MAP_CURSOR( GLUT_CURSOR_SPRAY, IDC_CROSS );
|
|
MAP_CURSOR( GLUT_CURSOR_WAIT, IDC_WAIT );
|
|
MAP_CURSOR( GLUT_CURSOR_TEXT, IDC_UPARROW );
|
|
MAP_CURSOR( GLUT_CURSOR_CROSSHAIR, IDC_CROSS );
|
|
/* MAP_CURSOR( GLUT_CURSOR_NONE, IDC_NO ); */
|
|
ZAP_CURSOR( GLUT_CURSOR_NONE, NULL );
|
|
|
|
default:
|
|
MAP_CURSOR( GLUT_CURSOR_UP_DOWN, IDC_ARROW );
|
|
}
|
|
else
|
|
lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
|
|
break;
|
|
|
|
case WM_SHOWWINDOW:
|
|
window->State.Visible = GL_TRUE;
|
|
window->State.Redisplay = GL_TRUE;
|
|
break;
|
|
|
|
case WM_PAINT:
|
|
/* Turn on the visibility in case it was turned off somehow */
|
|
window->State.Visible = GL_TRUE;
|
|
BeginPaint( hWnd, &ps );
|
|
fghRedrawWindowByHandle( hWnd );
|
|
EndPaint( hWnd, &ps );
|
|
break;
|
|
|
|
case WM_CLOSE:
|
|
fgDestroyWindow ( window );
|
|
if ( fgState.ActionOnWindowClose != GLUT_ACTION_CONTINUE_EXECUTION )
|
|
PostQuitMessage(0);
|
|
break;
|
|
|
|
case WM_DESTROY:
|
|
/*
|
|
* The window already got destroyed, so don't bother with it.
|
|
*/
|
|
return 0;
|
|
|
|
case WM_MOUSEMOVE:
|
|
{
|
|
window->State.MouseX = LOWORD( lParam );
|
|
window->State.MouseY = HIWORD( lParam );
|
|
|
|
if ( window->ActiveMenu )
|
|
{
|
|
window->State.Redisplay = GL_TRUE;
|
|
fgSetWindow ( window->ActiveMenu->ParentWindow );
|
|
break;
|
|
}
|
|
|
|
fgState.Modifiers = fgGetWin32Modifiers( );
|
|
|
|
if( ( wParam & MK_LBUTTON ) ||
|
|
( wParam & MK_MBUTTON ) ||
|
|
( wParam & MK_RBUTTON ) )
|
|
INVOKE_WCB( *window, Motion, ( window->State.MouseX,
|
|
window->State.MouseY ) );
|
|
else
|
|
INVOKE_WCB( *window, Passive, ( window->State.MouseX,
|
|
window->State.MouseY ) );
|
|
|
|
fgState.Modifiers = 0xffffffff;
|
|
}
|
|
break;
|
|
|
|
case WM_LBUTTONDOWN:
|
|
case WM_MBUTTONDOWN:
|
|
case WM_RBUTTONDOWN:
|
|
case WM_LBUTTONUP:
|
|
case WM_MBUTTONUP:
|
|
case WM_RBUTTONUP:
|
|
{
|
|
GLboolean pressed = GL_TRUE;
|
|
int button;
|
|
|
|
window->State.MouseX = LOWORD( lParam );
|
|
window->State.MouseY = HIWORD( lParam );
|
|
|
|
switch( uMsg )
|
|
{
|
|
case WM_LBUTTONDOWN:
|
|
pressed = GL_TRUE;
|
|
button = GLUT_LEFT_BUTTON;
|
|
break;
|
|
case WM_MBUTTONDOWN:
|
|
pressed = GL_TRUE;
|
|
button = GLUT_MIDDLE_BUTTON;
|
|
break;
|
|
case WM_RBUTTONDOWN:
|
|
pressed = GL_TRUE;
|
|
button = GLUT_RIGHT_BUTTON;
|
|
break;
|
|
case WM_LBUTTONUP:
|
|
pressed = GL_FALSE;
|
|
button = GLUT_LEFT_BUTTON;
|
|
break;
|
|
case WM_MBUTTONUP:
|
|
pressed = GL_FALSE;
|
|
button = GLUT_MIDDLE_BUTTON;
|
|
break;
|
|
case WM_RBUTTONUP:
|
|
pressed = GL_FALSE;
|
|
button = GLUT_RIGHT_BUTTON;
|
|
break;
|
|
default:
|
|
pressed = GL_FALSE;
|
|
button = -1;
|
|
break;
|
|
}
|
|
|
|
if( GetSystemMetrics( SM_SWAPBUTTON ) )
|
|
if( button == GLUT_LEFT_BUTTON )
|
|
button = GLUT_RIGHT_BUTTON;
|
|
else if( button == GLUT_RIGHT_BUTTON )
|
|
button = GLUT_LEFT_BUTTON;
|
|
|
|
if( button == -1 )
|
|
return DefWindowProc( hWnd, uMsg, lParam, wParam );
|
|
|
|
/*
|
|
* XXX This comment is duplicated in two other spots.
|
|
* XXX Can we centralize it?
|
|
*
|
|
* Do not execute the application's mouse callback if a
|
|
* menu is hooked to this button.
|
|
* In that case an appropriate private call should be generated.
|
|
* Near as I can tell, this is the menu behaviour:
|
|
* - Down-click the menu button, menu not active: activate
|
|
* the menu with its upper left-hand corner at the mouse location.
|
|
* - Down-click any button outside the menu, menu active:
|
|
* deactivate the menu
|
|
* - Down-click any button inside the menu, menu active:
|
|
* select the menu entry and deactivate the menu
|
|
* - Up-click the menu button, menu not active: nothing happens
|
|
* - Up-click the menu button outside the menu, menu active:
|
|
* nothing happens
|
|
* - Up-click the menu button inside the menu, menu active:
|
|
* select the menu entry and deactivate the menu
|
|
*/
|
|
/* Window has an active menu, it absorbs any mouse click */
|
|
if( window->ActiveMenu )
|
|
{
|
|
/* Outside the menu, deactivate the menu if it's a downclick */
|
|
if( ! fgCheckActiveMenu( window, window->ActiveMenu ) )
|
|
{
|
|
if( pressed )
|
|
fgDeactivateMenu( window->ActiveMenu->ParentWindow );
|
|
}
|
|
else /* In menu, invoke the callback and deactivate the menu*/
|
|
{
|
|
/*
|
|
* Save the current window and menu and set the current
|
|
* window to the window whose menu this is
|
|
*/
|
|
SFG_Window *save_window = fgStructure.Window;
|
|
SFG_Menu *save_menu = fgStructure.Menu;
|
|
SFG_Window *parent_window = window->ActiveMenu->ParentWindow;
|
|
fgSetWindow( parent_window );
|
|
fgStructure.Menu = window->ActiveMenu;
|
|
|
|
/* Execute the menu callback */
|
|
fgExecuteMenuCallback( window->ActiveMenu );
|
|
fgDeactivateMenu( parent_window );
|
|
|
|
/* Restore the current window and menu */
|
|
fgSetWindow( save_window );
|
|
fgStructure.Menu = save_menu;
|
|
}
|
|
|
|
/*
|
|
* Let's make the window redraw as a result of the mouse
|
|
* click and menu activity.
|
|
*/
|
|
if( ! window->IsMenu )
|
|
window->State.Redisplay = GL_TRUE;
|
|
|
|
break;
|
|
}
|
|
|
|
if ( window->Menu[ button ] && pressed )
|
|
{
|
|
window->State.Redisplay = GL_TRUE;
|
|
fgSetWindow( window );
|
|
fgActivateMenu( window, button );
|
|
|
|
break;
|
|
}
|
|
|
|
if( ! FETCH_WCB( *window, Mouse ) )
|
|
break;
|
|
|
|
fgSetWindow( window );
|
|
fgState.Modifiers = fgGetWin32Modifiers( );
|
|
|
|
INVOKE_WCB(
|
|
*window, Mouse,
|
|
( button,
|
|
pressed ? GLUT_DOWN : GLUT_UP,
|
|
window->State.MouseX,
|
|
window->State.MouseY
|
|
)
|
|
);
|
|
|
|
fgState.Modifiers = 0xffffffff;
|
|
}
|
|
break;
|
|
|
|
case 0x020a:
|
|
/* Should be WM_MOUSEWHEEL but my compiler doesn't recognize it */
|
|
{
|
|
/*
|
|
* XXX THIS IS SPECULATIVE -- John Fay, 10/2/03
|
|
* XXX Should use WHEEL_DELTA instead of 120
|
|
*/
|
|
int wheel_number = LOWORD( wParam );
|
|
short ticks = ( short )HIWORD( wParam ) / 120;
|
|
int direction = 1;
|
|
|
|
if( ticks < 0 )
|
|
{
|
|
direction = -1;
|
|
ticks = -ticks;
|
|
}
|
|
|
|
/*
|
|
* The mouse cursor has moved. Remember the new mouse cursor's position
|
|
*/
|
|
/* window->State.MouseX = LOWORD( lParam ); */
|
|
/* Need to adjust by window position, */
|
|
/* window->State.MouseY = HIWORD( lParam ); */
|
|
/* change "lParam" to other parameter */
|
|
|
|
if( ! FETCH_WCB( *window, MouseWheel ) &&
|
|
! FETCH_WCB( *window, Mouse ) )
|
|
break;
|
|
|
|
fgSetWindow( window );
|
|
fgState.Modifiers = fgGetWin32Modifiers( );
|
|
|
|
while( ticks-- )
|
|
if( FETCH_WCB( *window, MouseWheel ) )
|
|
INVOKE_WCB( *window, MouseWheel,
|
|
( wheel_number,
|
|
direction,
|
|
window->State.MouseX,
|
|
window->State.MouseY
|
|
)
|
|
);
|
|
else /* No mouse wheel, call the mouse button callback twice */
|
|
{
|
|
/*
|
|
* XXX The below assumes that you have no more than 3 mouse
|
|
* XXX buttons. Sorry.
|
|
*/
|
|
int button = wheel_number*2 + 4;
|
|
if( direction > 0 )
|
|
++button;
|
|
INVOKE_WCB( *window, Mouse,
|
|
( button, GLUT_DOWN,
|
|
window->State.MouseX, window->State.MouseY )
|
|
);
|
|
INVOKE_WCB( *window, Mouse,
|
|
( button, GLUT_UP,
|
|
window->State.MouseX, window->State.MouseX )
|
|
);
|
|
}
|
|
|
|
fgState.Modifiers = 0xffffffff;
|
|
}
|
|
break ;
|
|
|
|
case WM_SYSKEYDOWN:
|
|
case WM_KEYDOWN:
|
|
{
|
|
int keypress = -1;
|
|
POINT mouse_pos ;
|
|
|
|
if( fgState.IgnoreKeyRepeat && (lParam & KF_REPEAT) )
|
|
break;
|
|
|
|
/*
|
|
* Remember the current modifiers state. This is done here in order
|
|
* to make sure the VK_DELETE keyboard callback is executed properly.
|
|
*/
|
|
fgState.Modifiers = fgGetWin32Modifiers( );
|
|
|
|
GetCursorPos( &mouse_pos );
|
|
ScreenToClient( window->Window.Handle, &mouse_pos );
|
|
|
|
window->State.MouseX = mouse_pos.x;
|
|
window->State.MouseY = mouse_pos.y;
|
|
|
|
/*
|
|
* Convert the Win32 keystroke codes to GLUTtish way
|
|
*/
|
|
# define KEY(a,b) case a: keypress = b; break;
|
|
|
|
switch( wParam )
|
|
{
|
|
KEY( VK_F1, GLUT_KEY_F1 );
|
|
KEY( VK_F2, GLUT_KEY_F2 );
|
|
KEY( VK_F3, GLUT_KEY_F3 );
|
|
KEY( VK_F4, GLUT_KEY_F4 );
|
|
KEY( VK_F5, GLUT_KEY_F5 );
|
|
KEY( VK_F6, GLUT_KEY_F6 );
|
|
KEY( VK_F7, GLUT_KEY_F7 );
|
|
KEY( VK_F8, GLUT_KEY_F8 );
|
|
KEY( VK_F9, GLUT_KEY_F9 );
|
|
KEY( VK_F10, GLUT_KEY_F10 );
|
|
KEY( VK_F11, GLUT_KEY_F11 );
|
|
KEY( VK_F12, GLUT_KEY_F12 );
|
|
KEY( VK_PRIOR, GLUT_KEY_PAGE_UP );
|
|
KEY( VK_NEXT, GLUT_KEY_PAGE_DOWN );
|
|
KEY( VK_HOME, GLUT_KEY_HOME );
|
|
KEY( VK_END, GLUT_KEY_END );
|
|
KEY( VK_LEFT, GLUT_KEY_LEFT );
|
|
KEY( VK_UP, GLUT_KEY_UP );
|
|
KEY( VK_RIGHT, GLUT_KEY_RIGHT );
|
|
KEY( VK_DOWN, GLUT_KEY_DOWN );
|
|
KEY( VK_INSERT, GLUT_KEY_INSERT );
|
|
|
|
case VK_DELETE:
|
|
/*
|
|
* The delete key should be treated as an ASCII keypress:
|
|
*/
|
|
INVOKE_WCB( *window, Keyboard,
|
|
( 127, window->State.MouseX, window->State.MouseY )
|
|
);
|
|
}
|
|
|
|
if( keypress != -1 )
|
|
INVOKE_WCB( *window, Special,
|
|
( keypress,
|
|
window->State.MouseX, window->State.MouseY )
|
|
);
|
|
|
|
fgState.Modifiers = 0xffffffff;
|
|
}
|
|
break;
|
|
|
|
case WM_SYSKEYUP:
|
|
case WM_KEYUP:
|
|
{
|
|
int keypress = -1;
|
|
POINT mouse_pos;
|
|
|
|
/*
|
|
* Remember the current modifiers state. This is done here in order
|
|
* to make sure the VK_DELETE keyboard callback is executed properly.
|
|
*/
|
|
fgState.Modifiers = fgGetWin32Modifiers( );
|
|
|
|
GetCursorPos( &mouse_pos );
|
|
ScreenToClient( window->Window.Handle, &mouse_pos );
|
|
|
|
window->State.MouseX = mouse_pos.x;
|
|
window->State.MouseY = mouse_pos.y;
|
|
|
|
/*
|
|
* Convert the Win32 keystroke codes to GLUTtish way.
|
|
* "KEY(a,b)" was defined under "WM_KEYDOWN"
|
|
*/
|
|
|
|
switch( wParam )
|
|
{
|
|
KEY( VK_F1, GLUT_KEY_F1 );
|
|
KEY( VK_F2, GLUT_KEY_F2 );
|
|
KEY( VK_F3, GLUT_KEY_F3 );
|
|
KEY( VK_F4, GLUT_KEY_F4 );
|
|
KEY( VK_F5, GLUT_KEY_F5 );
|
|
KEY( VK_F6, GLUT_KEY_F6 );
|
|
KEY( VK_F7, GLUT_KEY_F7 );
|
|
KEY( VK_F8, GLUT_KEY_F8 );
|
|
KEY( VK_F9, GLUT_KEY_F9 );
|
|
KEY( VK_F10, GLUT_KEY_F10 );
|
|
KEY( VK_F11, GLUT_KEY_F11 );
|
|
KEY( VK_F12, GLUT_KEY_F12 );
|
|
KEY( VK_PRIOR, GLUT_KEY_PAGE_UP );
|
|
KEY( VK_NEXT, GLUT_KEY_PAGE_DOWN );
|
|
KEY( VK_HOME, GLUT_KEY_HOME );
|
|
KEY( VK_END, GLUT_KEY_END );
|
|
KEY( VK_LEFT, GLUT_KEY_LEFT );
|
|
KEY( VK_UP, GLUT_KEY_UP );
|
|
KEY( VK_RIGHT, GLUT_KEY_RIGHT );
|
|
KEY( VK_DOWN, GLUT_KEY_DOWN );
|
|
KEY( VK_INSERT, GLUT_KEY_INSERT );
|
|
|
|
case VK_DELETE:
|
|
/*
|
|
* The delete key should be treated as an ASCII keypress:
|
|
*/
|
|
INVOKE_WCB( *window, KeyboardUp,
|
|
( 127, window->State.MouseX, window->State.MouseY )
|
|
);
|
|
break;
|
|
|
|
default:
|
|
{
|
|
BYTE state[ 256 ];
|
|
WORD code[ 2 ];
|
|
|
|
GetKeyboardState( state );
|
|
|
|
if( ToAscii( wParam, 0, state, code, 0 ) == 1 )
|
|
wParam=code[ 0 ];
|
|
|
|
INVOKE_WCB( *window, KeyboardUp,
|
|
( (char)wParam,
|
|
window->State.MouseX, window->State.MouseY )
|
|
);
|
|
}
|
|
}
|
|
|
|
if( keypress != -1 )
|
|
INVOKE_WCB( *window, SpecialUp,
|
|
( keypress,
|
|
window->State.MouseX, window->State.MouseY )
|
|
);
|
|
|
|
fgState.Modifiers = 0xffffffff;
|
|
}
|
|
break;
|
|
|
|
case WM_SYSCHAR:
|
|
case WM_CHAR:
|
|
{
|
|
if( fgState.IgnoreKeyRepeat && (lParam & KF_REPEAT) )
|
|
break;
|
|
|
|
fgState.Modifiers = fgGetWin32Modifiers( );
|
|
INVOKE_WCB( *window, Keyboard,
|
|
( (char)wParam,
|
|
window->State.MouseX, window->State.MouseY )
|
|
);
|
|
fgState.Modifiers = 0xffffffff;
|
|
}
|
|
break;
|
|
|
|
case WM_CAPTURECHANGED:
|
|
/* User has finished resizing the window, force a redraw */
|
|
INVOKE_WCB( *window, Display, ( ) );
|
|
|
|
/*lRet = DefWindowProc( hWnd, uMsg, wParam, lParam ); */
|
|
break;
|
|
|
|
/*
|
|
* Other messages that I have seen and which are not handled already
|
|
*/
|
|
case WM_SETTEXT: /* 0x000c */
|
|
lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
|
|
/* Pass it on to "DefWindowProc" to set the window text */
|
|
break;
|
|
|
|
case WM_GETTEXT: /* 0x000d */
|
|
/* Ideally we would copy the title of the window into "lParam" */
|
|
/* strncpy ( (char *)lParam, "Window Title", wParam );
|
|
lRet = ( wParam > 12 ) ? 12 : wParam; */
|
|
/* the number of characters copied */
|
|
lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
|
|
break;
|
|
|
|
case WM_GETTEXTLENGTH: /* 0x000e */
|
|
/* Ideally we would get the length of the title of the window */
|
|
lRet = 12;
|
|
/* the number of characters in "Window Title\0" (see above) */
|
|
break;
|
|
|
|
case WM_ERASEBKGND: /* 0x0014 */
|
|
lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
|
|
break;
|
|
|
|
case WM_SYNCPAINT: /* 0x0088 */
|
|
/* Another window has moved, need to update this one */
|
|
window->State.Redisplay = GL_TRUE;
|
|
lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
|
|
/* Help screen says this message must be passed to "DefWindowProc" */
|
|
break;
|
|
|
|
case WM_NCPAINT: /* 0x0085 */
|
|
/* Need to update the border of this window */
|
|
lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
|
|
/* Pass it on to "DefWindowProc" to repaint a standard border */
|
|
break;
|
|
|
|
case WM_SYSCOMMAND : /* 0x0112 */
|
|
{
|
|
/*
|
|
* We have received a system command message. Try to act on it.
|
|
* The commands are passed in through the "lParam" parameter:
|
|
* Clicking on a corner to resize the window gives a "F004" message
|
|
* but this is not defined in my header file.
|
|
*/
|
|
switch ( lParam )
|
|
{
|
|
case SC_SIZE :
|
|
break ;
|
|
|
|
case SC_MOVE :
|
|
break ;
|
|
|
|
case SC_MINIMIZE :
|
|
/* User has clicked on the "-" to minimize the window */
|
|
/* Turn off the visibility */
|
|
window->State.Visible = GL_FALSE ;
|
|
|
|
break ;
|
|
|
|
case SC_MAXIMIZE :
|
|
break ;
|
|
|
|
case SC_NEXTWINDOW :
|
|
break ;
|
|
|
|
case SC_PREVWINDOW :
|
|
break ;
|
|
|
|
case SC_CLOSE :
|
|
/* Followed very closely by a WM_CLOSE message */
|
|
break ;
|
|
|
|
case SC_VSCROLL :
|
|
break ;
|
|
|
|
case SC_HSCROLL :
|
|
break ;
|
|
|
|
case SC_MOUSEMENU :
|
|
break ;
|
|
|
|
case SC_KEYMENU :
|
|
break ;
|
|
|
|
case SC_ARRANGE :
|
|
break ;
|
|
|
|
case SC_RESTORE :
|
|
break ;
|
|
|
|
case SC_TASKLIST :
|
|
break ;
|
|
|
|
case SC_SCREENSAVE :
|
|
break ;
|
|
|
|
case SC_HOTKEY :
|
|
break ;
|
|
}
|
|
}
|
|
|
|
/* We need to pass the message on to the operating system as well */
|
|
lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
|
|
break;
|
|
|
|
default:
|
|
/*
|
|
* Handle unhandled messages
|
|
*/
|
|
lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
|
|
break;
|
|
}
|
|
|
|
return lRet;
|
|
}
|
|
#endif
|
|
|
|
/*** END OF FILE ***/
|