c209cc5479
git-svn-id: https://svn.code.sf.net/p/freeglut/code/trunk@212 7f0cb862-5218-0410-a997-914c9d46530a
2026 lines
59 KiB
C
2026 lines
59 KiB
C
/*
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* freeglut_main.c
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*
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* The windows message processing methods.
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*
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* Copyright (c) 1999-2000 Pawel W. Olszta. All Rights Reserved.
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* Written by Pawel W. Olszta, <olszta@sourceforge.net>
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* Creation date: Fri Dec 3 1999
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#define G_LOG_DOMAIN "freeglut-main"
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#include "../include/GL/freeglut.h"
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#include "freeglut_internal.h"
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#include <limits.h>
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#if TARGET_HOST_UNIX_X11
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#include <sys/types.h>
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#include <sys/time.h>
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#include <unistd.h>
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#include <errno.h>
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#include <sys/stat.h>
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#elif TARGET_HOST_WIN32
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#endif
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#ifndef MAX
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#define MAX(a,b) (((a)>(b)) ? (a) : (b))
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#endif
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#ifndef MIN
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#define MIN(a,b) (((a)<(b)) ? (a) : (b))
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#endif
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/*
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* TODO BEFORE THE STABLE RELEASE:
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*
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* There are some issues concerning window redrawing under X11, and maybe
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* some events are not handled. The Win32 version lacks some more features,
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* but seems acceptable for not demanding purposes.
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*
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* Need to investigate why the X11 version breaks out with an error when
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* closing a window (using the window manager, not glutDestroyWindow)...
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*/
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/* -- PRIVATE FUNCTIONS ---------------------------------------------------- */
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/*
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* Calls a window's redraw method. This is used when
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* a redraw is forced by the incoming window messages.
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*/
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static void fghRedrawWindowByHandle
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#if TARGET_HOST_UNIX_X11
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( Window handle )
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#elif TARGET_HOST_WIN32
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( HWND handle )
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#endif
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{
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/*
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* Find the window we have to redraw...
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*/
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SFG_Window* window = fgWindowByHandle( handle );
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freeglut_return_if_fail( window != NULL );
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/*
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* Check if there is a display callback hooked to it
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*/
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freeglut_return_if_fail( window->Callbacks.Display != NULL );
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/*
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* Return if the window is not visible
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*/
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freeglut_return_if_fail( window->State.Visible == TRUE );
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/*
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* Set the window as the current one.
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*/
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fgSetWindow( window );
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/*
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* Do not exagerate with the redisplaying
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*/
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window->State.Redisplay = FALSE;
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/*
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* Have the callback executed now. The buffers should
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* be swapped by the glutSwapBuffers() execution inside
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* the callback itself.
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*/
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window->Callbacks.Display();
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}
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/*
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* Handle a window configuration change. When no reshape
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* callback is hooked, the viewport size is updated to
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* match the new window size.
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*/
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static void fghReshapeWindowByHandle
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#if TARGET_HOST_UNIX_X11
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( Window handle, int width, int height )
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#elif TARGET_HOST_WIN32
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( HWND handle, int width, int height )
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#endif
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{
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SFG_Window *current_window = fgStructure.Window ;
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/*
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* Find the window that received the reshape event
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*/
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SFG_Window* window = fgWindowByHandle( handle );
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freeglut_return_if_fail( window != NULL );
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/*
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* Remember about setting the current window...
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*/
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fgSetWindow( window );
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/*
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* Check if there is a reshape callback hooked
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*/
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if( window->Callbacks.Reshape != NULL )
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{
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/*
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* OKi, have it called immediately
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*/
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window->Callbacks.Reshape( width, height );
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}
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else
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{
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/*
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* Otherwise just resize the viewport
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*/
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glViewport( 0, 0, width, height );
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}
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/*
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* Force a window redraw. In Windows at least this is only a partial solution: if the
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* window is increasing in size in either dimension, the already-drawn part does not get
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* drawn again and things look funny. But without this we get this bad behaviour whenever
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* we resize the window.
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*/
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window->State.Redisplay = TRUE ;
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/*
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* If this is a menu, restore the active window
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*/
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if ( window->IsMenu )
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fgSetWindow ( current_window ) ;
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}
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/*
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* A static helper function to execute display callback for a window
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*/
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static void fghcbDisplayWindow( SFG_Window *window, SFG_Enumerator *enumerator )
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{
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#if TARGET_HOST_UNIX_X11
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/*
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* Check if there is an idle callback hooked
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*/
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if( (window->Callbacks.Display != NULL) &&
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(window->State.Redisplay == TRUE) &&
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(window->State.Visible == TRUE) )
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{
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SFG_Window *current_window = fgStructure.Window ;
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/*
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* OKi, this is the case: have the window set as the current one
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*/
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fgSetWindow( window );
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/*
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* Do not exagerate with the redisplaying
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*/
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window->State.Redisplay = FALSE;
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/*
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* And execute the display callback immediately after
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*/
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window->Callbacks.Display();
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fgSetWindow ( current_window ) ;
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}
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#elif TARGET_HOST_WIN32
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/*
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* Do we need to explicitly resize the window?
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*/
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if( window->State.NeedToResize )
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{
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SFG_Window *current_window = fgStructure.Window ;
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fgSetWindow( window );
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fghReshapeWindowByHandle(
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window->Window.Handle,
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glutGet( GLUT_WINDOW_WIDTH ),
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glutGet( GLUT_WINDOW_HEIGHT )
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);
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/*
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* Never ever do that again:
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*/
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window->State.NeedToResize = FALSE;
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fgSetWindow ( current_window ) ;
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}
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/*
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* This is done in a bit different way under Windows
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*/
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if( (window->Callbacks.Display != NULL) &&
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(window->State.Redisplay == TRUE) &&
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(window->State.Visible == TRUE) )
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{
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/*
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* Do not exagerate with the redisplaying
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*/
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window->State.Redisplay = FALSE;
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RedrawWindow(
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window->Window.Handle, NULL, NULL,
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RDW_NOERASE | RDW_INTERNALPAINT | RDW_INVALIDATE | RDW_UPDATENOW
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);
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}
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#endif
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/*
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* Process this window's children (if any)
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*/
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fgEnumSubWindows( window, fghcbDisplayWindow, enumerator );
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}
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/*
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* Make all windows perform a display call
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*/
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static void fghDisplayAll( void )
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{
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SFG_Enumerator enumerator;
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/*
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* Uses a method very similiar for fgWindowByHandle...
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*/
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enumerator.found = FALSE;
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enumerator.data = NULL;
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/*
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* Start the enumeration now:
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*/
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fgEnumWindows( fghcbDisplayWindow, &enumerator );
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}
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/*
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* Window enumerator callback to check for the joystick polling code
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*/
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static void fghcbCheckJoystickPolls( SFG_Window *window, SFG_Enumerator *enumerator )
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{
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long int checkTime = fgElapsedTime();
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/*
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* Check if actually need to do the poll for the currently enumerated window:
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*/
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if( window->State.JoystickLastPoll + window->State.JoystickPollRate <= checkTime )
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{
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/*
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* Yeah, that's it. Poll the joystick...
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*/
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fgJoystickPollWindow( window );
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/*
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* ...and reset the polling counters:
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*/
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window->State.JoystickLastPoll = checkTime;
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}
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/*
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* Process this window's children (if any)
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*/
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fgEnumSubWindows( window, fghcbCheckJoystickPolls, enumerator );
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}
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/*
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* Check all windows for joystick polling
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*/
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static void fghCheckJoystickPolls( void )
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{
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SFG_Enumerator enumerator;
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/*
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* Uses a method very similiar for fgWindowByHandle...
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*/
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enumerator.found = FALSE;
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enumerator.data = NULL;
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/*
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* Start the enumeration now:
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*/
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fgEnumWindows( fghcbCheckJoystickPolls, &enumerator );
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}
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/*
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* Check the global timers
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*/
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static void fghCheckTimers( void )
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{
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long checkTime = fgElapsedTime();
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SFG_Timer *timer, *next;
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SFG_List timedOut;
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fgListInit(&timedOut);
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/*
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* For every timer that is waiting for triggering
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*/
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for( timer = (SFG_Timer *)fgState.Timers.First; timer; timer = (SFG_Timer *)next )
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{
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next = (SFG_Timer *)timer->Node.Next;
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/*
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* Check for the timeout:
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*/
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if( timer->TriggerTime <= checkTime )
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{
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/*
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* Add the timer to the timed out timers list
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*/
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fgListRemove( &fgState.Timers, &timer->Node );
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fgListAppend( &timedOut, &timer->Node );
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}
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}
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/*
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* Now feel free to execute all the hooked and timed out timer callbacks
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* And delete the timed out timers...
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*/
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while ( (timer = (SFG_Timer *)timedOut.First) )
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{
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if( timer->Callback != NULL )
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timer->Callback( timer->ID );
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fgListRemove( &timedOut, &timer->Node );
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free( timer );
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}
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}
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/*
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* Elapsed Time
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*/
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long fgElapsedTime( void )
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{
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#if TARGET_HOST_UNIX_X11
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struct timeval now;
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long elapsed;
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gettimeofday( &now, NULL );
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elapsed = (now.tv_usec - fgState.Time.Value.tv_usec) / 1000;
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elapsed += (now.tv_sec - fgState.Time.Value.tv_sec) * 1000;
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return( elapsed );
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#elif TARGET_HOST_WIN32
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return (timeGetTime() - fgState.Time.Value);
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#endif
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}
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/*
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* Error Messages.
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*/
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void fgError( const char *fmt, ... )
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{
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va_list ap;
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va_start( ap, fmt );
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fprintf( stderr, "freeglut: ");
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vfprintf( stderr, fmt, ap );
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fprintf( stderr, "\n" );
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va_end( ap );
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exit( 1 );
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}
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void fgWarning( const char *fmt, ... )
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{
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va_list ap;
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va_start( ap, fmt );
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fprintf( stderr, "freeglut: ");
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vfprintf( stderr, fmt, ap );
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fprintf( stderr, "\n" );
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va_end( ap );
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}
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/*
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* Indicates whether Joystick events are being used by ANY window.
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*
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* The current mechanism is to walk all of the windows and ask if
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* there is a joystick callback. Certainly in some cases, maybe
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* in all cases, the joystick is attached to the system and accessed
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* from ONE point by GLUT/freeglut, so this is not the right way,
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* in general, to do this. However, the Joystick code is segregated
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* in its own little world, so we can't access the information that
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* we need in order to do that nicely.
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*
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* Some alternatives:
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* * Store Joystick data into freeglut global state.
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* * Provide NON-static functions or data from Joystick *.c file.
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*
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* Basically, the RIGHT way to do this requires knowing something
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* about the Joystick. Right now, the Joystick code is behind
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* an opaque wall.
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*
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*/
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static void fgCheckJoystickCallback( SFG_Window* w, SFG_Enumerator* e)
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{
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if( w->Callbacks.Joystick )
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{
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e->found = TRUE;
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e->data = w;
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}
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fgEnumSubWindows( w, fgCheckJoystickCallback, e );
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}
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static int fgHaveJoystick( void )
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{
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SFG_Enumerator enumerator;
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enumerator.found = FALSE;
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enumerator.data = NULL;
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fgEnumWindows( fgCheckJoystickCallback, &enumerator );
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return !!enumerator.data;
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}
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static void fgHavePendingRedisplaysCallback( SFG_Window* w, SFG_Enumerator* e)
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{
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if( w->State.Redisplay )
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{
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e->found = TRUE;
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e->data = w;
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}
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fgEnumSubWindows( w, fgHavePendingRedisplaysCallback, e );
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}
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static int fgHavePendingRedisplays (void)
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{
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SFG_Enumerator enumerator;
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enumerator.found = FALSE;
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enumerator.data = NULL;
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fgEnumWindows( fgHavePendingRedisplaysCallback, &enumerator );
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return !!enumerator.data;
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}
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/*
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* Indicates whether there are any outstanding timers.
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*/
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static int fgHaveTimers( void )
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{
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return !!fgState.Timers.First;
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}
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/*
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* Returns the number of GLUT ticks (milliseconds) till the next timer event.
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*/
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static long fgNextTimer( void )
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{
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long now = fgElapsedTime();
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long ret = INT_MAX;
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SFG_Timer *timer;
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for( timer = (SFG_Timer *)fgState.Timers.First;
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timer;
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timer = (SFG_Timer *)timer->Node.Next )
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ret = MIN( ret, MAX( 0, (timer->TriggerTime) - now ) );
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return ret;
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}
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/*
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* Does the magic required to relinquish the CPU until something interesting
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* happens.
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*/
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static void fgSleepForEvents( void )
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{
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#if TARGET_HOST_UNIX_X11
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fd_set fdset;
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int err;
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int socket;
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struct timeval wait;
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long msec;
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if( fgState.IdleCallback ||
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fgHavePendingRedisplays() )
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return;
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socket = ConnectionNumber( fgDisplay.Display );
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FD_ZERO( &fdset );
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FD_SET( socket, &fdset );
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msec = fgNextTimer();
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if( fgHaveJoystick() )
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msec = MIN( msec, 10 );
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wait.tv_sec = msec / 1000;
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wait.tv_usec = (msec % 1000) * 1000;
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err = select( socket+1, &fdset, NULL, NULL, &wait );
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if( -1 == err )
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printf( "freeglut select() error: %d\n", errno );
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#elif TARGET_HOST_WIN32
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#endif
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}
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|
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/* -- INTERFACE FUNCTIONS -------------------------------------------------- */
|
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|
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/*
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* Executes a single iteration in the freeglut processing loop.
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*/
|
|
void FGAPIENTRY glutMainLoopEvent( void )
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{
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#if TARGET_HOST_UNIX_X11
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SFG_Window* window;
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XEvent event;
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int modifiers;
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|
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/*
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* This code was repeated constantly, so here it goes into a definition:
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*/
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# define GETWINDOW(a) window = fgWindowByHandle( event.a.window );if( window == NULL ) break;
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# define GETMOUSE(a) window->State.MouseX = event.a.x; window->State.MouseY = event.a.y;
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/*
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* Make sure the display has been created etc.
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*/
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freeglut_assert_ready;
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/*
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* Do we have any event messages pending?
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*/
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while( XPending( fgDisplay.Display ) )
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{
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/*
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* Grab the next event to be processed...
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*/
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XNextEvent( fgDisplay.Display, &event );
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|
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/*
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* Check the event's type
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*/
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switch( event.type )
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{
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case CreateNotify:
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/*
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* The window creation confirmation
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*/
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break;
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|
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case DestroyNotify:
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|
/*
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* This is sent to confirm the XDestroyWindow call.
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*/
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/*
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* Call the window closure callback, remove from the structure, etc.
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|
*/
|
|
/* fgAddToWindowDestroyList ( window, FALSE ); */
|
|
|
|
break;
|
|
|
|
case ClientMessage:
|
|
/*
|
|
* Destroy the window when the WM_DELETE_WINDOW message arrives
|
|
*/
|
|
if( (Atom) event.xclient.data.l[ 0 ] == fgDisplay.DeleteWindow )
|
|
{
|
|
GETWINDOW( xclient );
|
|
|
|
/*
|
|
* Call the XWindows functions to close the window
|
|
*/
|
|
fgCloseWindow ( window ) ;
|
|
|
|
/*
|
|
* Call the window closure callback, remove from the structure, etc.
|
|
*/
|
|
fgAddToWindowDestroyList ( window, FALSE );
|
|
}
|
|
break;
|
|
|
|
case UnmapNotify:
|
|
/*
|
|
* A window of ours has been unmapped...
|
|
*/
|
|
break;
|
|
|
|
case Expose:
|
|
/*
|
|
* We are too dumb to process partial exposes...
|
|
*/
|
|
if( event.xexpose.count == 0 )
|
|
fghRedrawWindowByHandle( event.xexpose.window );
|
|
break;
|
|
|
|
case ConfigureNotify:
|
|
/*
|
|
* The window gets resized
|
|
*/
|
|
fghReshapeWindowByHandle(
|
|
event.xconfigure.window,
|
|
event.xconfigure.width,
|
|
event.xconfigure.height
|
|
);
|
|
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:
|
|
{
|
|
/*
|
|
* The window's visiblity might have changed
|
|
*/
|
|
GETWINDOW( xvisibility );
|
|
|
|
/*
|
|
* Break now if no window status callback has been hooked to that window
|
|
*/
|
|
if( window->Callbacks.WindowStatus == NULL )
|
|
break;
|
|
|
|
/*
|
|
* We're going to send a callback to a window. Make it current.
|
|
*/
|
|
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:
|
|
/*
|
|
* We are fully visible...
|
|
*/
|
|
window->Callbacks.WindowStatus( GLUT_FULLY_RETAINED );
|
|
window->State.Visible = TRUE;
|
|
break;
|
|
|
|
case VisibilityPartiallyObscured:
|
|
/*
|
|
* The window is partially visible
|
|
*/
|
|
window->Callbacks.WindowStatus( GLUT_PARTIALLY_RETAINED );
|
|
window->State.Visible = TRUE;
|
|
break;
|
|
|
|
case VisibilityFullyObscured:
|
|
/*
|
|
* The window is totally obscured
|
|
*/
|
|
window->Callbacks.WindowStatus( GLUT_FULLY_COVERED );
|
|
window->State.Visible = FALSE;
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case EnterNotify:
|
|
{
|
|
/*
|
|
* Mouse is over one of our windows
|
|
*/
|
|
GETWINDOW( xcrossing ); GETMOUSE( xcrossing );
|
|
|
|
/*
|
|
* Is there an entry callback hooked to the window?
|
|
*/
|
|
if( window->Callbacks.Entry != NULL )
|
|
{
|
|
/*
|
|
* Set the current window
|
|
*/
|
|
fgSetWindow ( window ) ;
|
|
|
|
/*
|
|
* Yeah. Notify the window about having the mouse cursor over
|
|
*/
|
|
window->Callbacks.Entry( GLUT_ENTERED );
|
|
}
|
|
}
|
|
break;
|
|
|
|
case LeaveNotify:
|
|
{
|
|
/*
|
|
* Mouse is no longer over one of our windows
|
|
*/
|
|
GETWINDOW( xcrossing ); GETMOUSE( xcrossing );
|
|
|
|
/*
|
|
* Is there an entry callback hooked to the window?
|
|
*/
|
|
if( window->Callbacks.Entry != NULL )
|
|
{
|
|
/*
|
|
* Set the current window
|
|
*/
|
|
fgSetWindow ( window ) ;
|
|
|
|
/*
|
|
* Yeah. Notify the window about having the mouse cursor over
|
|
*/
|
|
window->Callbacks.Entry( GLUT_LEFT );
|
|
}
|
|
}
|
|
break;
|
|
|
|
case MotionNotify:
|
|
{
|
|
/*
|
|
* The mouse cursor was moved...
|
|
*/
|
|
GETWINDOW( xmotion ); GETMOUSE( xmotion );
|
|
|
|
/*
|
|
* Fallback if there's an active menu hooked to this window
|
|
*/
|
|
if( window->ActiveMenu != NULL )
|
|
{
|
|
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 ;
|
|
}
|
|
|
|
/*
|
|
* Let's make the window redraw as a result of the mouse motion.
|
|
*/
|
|
window->ActiveMenu->Window->State.Redisplay = TRUE ;
|
|
|
|
/*
|
|
* Since the window is a menu, make the parent window current
|
|
*/
|
|
fgSetWindow ( window->ActiveMenu->ParentWindow ) ;
|
|
|
|
break; /* I think this should stay in -- an active menu should absorb the mouse motion */
|
|
}
|
|
|
|
/*
|
|
* What kind of a movement was it?
|
|
*/
|
|
if( (event.xmotion.state & Button1Mask) || (event.xmotion.state & Button2Mask) ||
|
|
(event.xmotion.state & Button3Mask) || (event.xmotion.state & Button4Mask) ||
|
|
(event.xmotion.state & Button5Mask) )
|
|
{
|
|
/*
|
|
* A mouse button was pressed during the movement...
|
|
* Is there a motion callback hooked to the window?
|
|
*/
|
|
if( window->Callbacks.Motion != NULL )
|
|
{
|
|
/*
|
|
* Set the current window
|
|
*/
|
|
fgSetWindow ( window ) ;
|
|
|
|
/*
|
|
* Yup. Have it executed immediately
|
|
*/
|
|
window->Callbacks.Motion( event.xmotion.x, event.xmotion.y );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* Otherwise it was a passive movement...
|
|
*/
|
|
if( window->Callbacks.Passive != NULL )
|
|
{
|
|
/*
|
|
* Set the current window
|
|
*/
|
|
fgSetWindow ( window ) ;
|
|
|
|
/*
|
|
* That's right, and there is a passive callback, too.
|
|
*/
|
|
window->Callbacks.Passive( event.xmotion.x, event.xmotion.y );
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case ButtonRelease:
|
|
case ButtonPress:
|
|
{
|
|
GLboolean pressed = TRUE ;
|
|
int button;
|
|
|
|
if ( event.type == ButtonRelease ) pressed = 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;
|
|
|
|
/*
|
|
* 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
|
|
*/
|
|
if ( window->ActiveMenu != NULL ) /* Window has an active menu, it absorbs any mouse click */
|
|
{
|
|
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 ;
|
|
}
|
|
|
|
if ( fgCheckActiveMenu ( window->ActiveMenu->Window, window->ActiveMenu ) == TRUE ) /* Inside the 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 ( 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 /* Outside the menu, deactivate the menu if it's a downclick */
|
|
{
|
|
if ( pressed == TRUE ) fgDeactivateMenu ( window->ActiveMenu->ParentWindow ) ;
|
|
}
|
|
|
|
/*
|
|
* Let's make the window redraw as a result of the mouse click and menu activity.
|
|
*/
|
|
window->State.Redisplay = TRUE ;
|
|
|
|
break ;
|
|
}
|
|
|
|
/*
|
|
* No active menu, let's check whether we need to activate one.
|
|
*/
|
|
if (( 0 <= button ) && ( 2 >= button ) &&
|
|
( window->Menu[ button ] != NULL ) && ( pressed == TRUE ) )
|
|
{
|
|
/*
|
|
* Let's make the window redraw as a result of the mouse click.
|
|
*/
|
|
window->State.Redisplay = TRUE ;
|
|
|
|
/*
|
|
* Set the current window
|
|
*/
|
|
fgSetWindow( window );
|
|
|
|
/*
|
|
* Activate the appropriate menu structure...
|
|
*/
|
|
fgActivateMenu( window, button );
|
|
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Check if there is a mouse callback hooked to the window
|
|
*/
|
|
if( window->Callbacks.Mouse == NULL )
|
|
break;
|
|
|
|
/*
|
|
* Set the current window
|
|
*/
|
|
fgSetWindow ( window );
|
|
|
|
/*
|
|
* Remember the current modifiers state
|
|
*/
|
|
modifiers = 0;
|
|
if (event.xbutton.state & (ShiftMask|LockMask))
|
|
modifiers |= GLUT_ACTIVE_SHIFT;
|
|
if (event.xbutton.state & ControlMask)
|
|
modifiers |= GLUT_ACTIVE_CTRL;
|
|
if (event.xbutton.state & Mod1Mask)
|
|
modifiers |= GLUT_ACTIVE_ALT;
|
|
fgStructure.Window->State.Modifiers = modifiers;
|
|
|
|
/*
|
|
* Finally execute the mouse callback
|
|
*/
|
|
fgStructure.Window->Callbacks.Mouse(
|
|
button,
|
|
event.type == ButtonPress ? GLUT_DOWN : GLUT_UP,
|
|
event.xbutton.x,
|
|
event.xbutton.y
|
|
);
|
|
|
|
/*
|
|
* Trash the modifiers state
|
|
*/
|
|
fgStructure.Window->State.Modifiers = 0xffffffff;
|
|
}
|
|
break;
|
|
|
|
case KeyRelease:
|
|
case KeyPress:
|
|
{
|
|
FGCBkeyboard keyboard_cb;
|
|
FGCBspecial special_cb;
|
|
|
|
/*
|
|
* A key has been pressed, find the window that had the focus:
|
|
*/
|
|
GETWINDOW( xkey ); GETMOUSE( xkey );
|
|
|
|
if( event.type == KeyPress )
|
|
{
|
|
keyboard_cb = window->Callbacks.Keyboard;
|
|
special_cb = window->Callbacks.Special;
|
|
}
|
|
else
|
|
{
|
|
keyboard_cb = window->Callbacks.KeyboardUp;
|
|
special_cb = window->Callbacks.SpecialUp;
|
|
}
|
|
|
|
/*
|
|
* Is there a keyboard/special callback hooked for this window?
|
|
*/
|
|
if( (keyboard_cb != NULL) || (special_cb != NULL) )
|
|
{
|
|
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 != NULL )
|
|
{
|
|
/*
|
|
* Set the current window
|
|
*/
|
|
fgSetWindow( window );
|
|
|
|
/*
|
|
* Remember the current modifiers state
|
|
*/
|
|
modifiers = 0;
|
|
if (event.xkey.state & (ShiftMask|LockMask))
|
|
modifiers |= GLUT_ACTIVE_SHIFT;
|
|
if (event.xkey.state & ControlMask)
|
|
modifiers |= GLUT_ACTIVE_CTRL;
|
|
if (event.xkey.state & Mod1Mask)
|
|
modifiers |= GLUT_ACTIVE_ALT;
|
|
window->State.Modifiers = modifiers;
|
|
|
|
/*
|
|
* Execute the callback
|
|
*/
|
|
keyboard_cb( asciiCode[ 0 ], event.xkey.x, event.xkey.y );
|
|
|
|
/*
|
|
* Trash the modifiers state
|
|
*/
|
|
window->State.Modifiers = 0xffffffff;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
int special = -1;
|
|
|
|
/*
|
|
* ...and one for all the others, which need to be translated to GLUT_KEY_Xs...
|
|
*/
|
|
switch( keySym )
|
|
{
|
|
/*
|
|
* First the function keys come:
|
|
*/
|
|
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;
|
|
|
|
/*
|
|
* Then the arrows and stuff:
|
|
*/
|
|
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 != NULL) && (special != -1) )
|
|
{
|
|
/*
|
|
* Set the current window
|
|
*/
|
|
fgSetWindow( window );
|
|
|
|
/*
|
|
* Remember the current modifiers state
|
|
*/
|
|
modifiers = 0;
|
|
if (event.xkey.state & (ShiftMask|LockMask))
|
|
modifiers |= GLUT_ACTIVE_SHIFT;
|
|
if (event.xkey.state & ControlMask)
|
|
modifiers |= GLUT_ACTIVE_CTRL;
|
|
if (event.xkey.state & Mod1Mask)
|
|
modifiers |= GLUT_ACTIVE_ALT;
|
|
window->State.Modifiers = modifiers;
|
|
|
|
special_cb( special, event.xkey.x, event.xkey.y );
|
|
|
|
/*
|
|
* Trash the modifiers state
|
|
*/
|
|
window->State.Modifiers = 0xffffffff;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
{
|
|
/*
|
|
* Have all the timers checked.
|
|
*/
|
|
fghCheckTimers();
|
|
|
|
/*
|
|
* Poll the joystick and notify all windows that want to be notified...
|
|
*/
|
|
fghCheckJoystickPolls();
|
|
|
|
/*
|
|
* No messages in the queue, which means we are idling...
|
|
*/
|
|
if( fgState.IdleCallback != NULL )
|
|
fgState.IdleCallback();
|
|
|
|
/*
|
|
* Remember about displaying all the windows that have
|
|
* been marked for a redisplay (possibly in the idle call):
|
|
*/
|
|
fghDisplayAll();
|
|
}
|
|
|
|
#elif TARGET_HOST_WIN32
|
|
|
|
MSG stMsg;
|
|
|
|
/*
|
|
* The windows processing is considerably smaller
|
|
*/
|
|
while( PeekMessage( &stMsg, NULL, 0, 0, PM_NOREMOVE ) )
|
|
{
|
|
/*
|
|
* Grab the message now, checking for WM_QUIT
|
|
*/
|
|
if( GetMessage( &stMsg, NULL, 0, 0 ) == 0 )
|
|
fgState.ExecState = GLUT_EXEC_STATE_STOP ;
|
|
|
|
/*
|
|
* Translate virtual-key messages and send them to the window...
|
|
*/
|
|
TranslateMessage( &stMsg );
|
|
DispatchMessage( &stMsg );
|
|
}
|
|
|
|
{
|
|
/*
|
|
* Have all the timers checked.
|
|
*/
|
|
fghCheckTimers();
|
|
|
|
/*
|
|
* Poll the joystick and notify all windows that want to be notified...
|
|
*/
|
|
fghCheckJoystickPolls();
|
|
|
|
/*
|
|
* No messages in the queue, which means we are idling...
|
|
*/
|
|
if( fgState.IdleCallback != NULL )
|
|
fgState.IdleCallback();
|
|
|
|
/*
|
|
* Remember about displaying all the windows that have
|
|
* been marked for a redisplay (possibly in the idle call):
|
|
*/
|
|
fghDisplayAll();
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* If an event caused a window to be closed, do the actual closing here
|
|
*/
|
|
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
|
|
|
|
/*
|
|
* Make sure the display has been created etc.
|
|
*/
|
|
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 != NULL )
|
|
{
|
|
if ( window->Callbacks.Visibility != NULL )
|
|
{
|
|
SFG_Window *current_window = fgStructure.Window ;
|
|
|
|
/*
|
|
* Set the current window
|
|
*/
|
|
fgSetWindow( window );
|
|
|
|
window->Callbacks.Visibility ( window->State.Visible ) ;
|
|
|
|
/*
|
|
* Restore the current window
|
|
*/
|
|
fgSetWindow( current_window );
|
|
}
|
|
|
|
window = (SFG_Window *)window->Node.Next ;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Set freeglut to be running
|
|
*/
|
|
fgState.ExecState = GLUT_EXEC_STATE_RUNNING ;
|
|
|
|
/*
|
|
* Enter the main loop itself. Inside the loop, process events and check for loop exit.
|
|
*/
|
|
while ( fgState.ExecState == GLUT_EXEC_STATE_RUNNING )
|
|
{
|
|
glutMainLoopEvent () ;
|
|
|
|
/*
|
|
* If there are no more windows open, stop execution
|
|
*/
|
|
if ( fgStructure.Windows.First == NULL )
|
|
fgState.ExecState = GLUT_EXEC_STATE_STOP ;
|
|
else
|
|
fgSleepForEvents();
|
|
}
|
|
|
|
{
|
|
fgExecutionState execState = fgState.ActionOnWindowClose;
|
|
|
|
/*
|
|
* When this loop terminates, destroy the display, state and structure
|
|
* of a freeglut session, so that another glutInit() call can happen
|
|
*/
|
|
fgDeinitialize();
|
|
|
|
/*
|
|
* Check whether we return to the calling program or simply exit
|
|
*/
|
|
if ( execState == GLUT_ACTION_EXIT )
|
|
exit ( 0 ) ;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Leaves the freeglut processing loop.
|
|
*/
|
|
void FGAPIENTRY glutLeaveMainLoop( void )
|
|
{
|
|
fgState.ExecState = GLUT_EXEC_STATE_STOP ;
|
|
}
|
|
|
|
/*
|
|
* The window procedure for handling Win32 events
|
|
*/
|
|
#if TARGET_HOST_WIN32
|
|
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 ) ; */
|
|
/*
|
|
* Check what type of message are we receiving
|
|
*/
|
|
switch( uMsg )
|
|
{
|
|
case WM_CREATE:
|
|
/*
|
|
* The window structure is passed as the creation structure paramter...
|
|
*/
|
|
window = (SFG_Window *) (((LPCREATESTRUCT) lParam)->lpCreateParams);
|
|
assert( window != NULL );
|
|
|
|
/*
|
|
* We can safely store the window's handle now:
|
|
*/
|
|
window->Window.Handle = hWnd;
|
|
|
|
/*
|
|
* Get the window's device context
|
|
*/
|
|
window->Window.Device = GetDC( hWnd );
|
|
|
|
/*
|
|
* Create or get the OpenGL rendering context now
|
|
*/
|
|
if ( fgState.BuildingAMenu )
|
|
{
|
|
/*
|
|
* Setup the pixel format of our window
|
|
*/
|
|
unsigned int current_DisplayMode = fgState.DisplayMode ;
|
|
fgState.DisplayMode = GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH ;
|
|
fgSetupPixelFormat( window, FALSE, PFD_MAIN_PLANE );
|
|
fgState.DisplayMode = current_DisplayMode ;
|
|
|
|
/*
|
|
* If there isn't already an OpenGL rendering context for menu windows, make one
|
|
*/
|
|
if ( !fgStructure.MenuContext )
|
|
{
|
|
fgStructure.MenuContext = (SFG_MenuContext *)malloc ( sizeof(SFG_MenuContext) ) ;
|
|
fgStructure.MenuContext->Context = wglCreateContext( window->Window.Device );
|
|
}
|
|
else
|
|
wglMakeCurrent ( window->Window.Device, fgStructure.MenuContext->Context ) ;
|
|
|
|
/* window->Window.Context = wglGetCurrentContext () ; */
|
|
window->Window.Context = wglCreateContext( window->Window.Device );
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* Setup the pixel format of our window
|
|
*/
|
|
fgSetupPixelFormat( window, FALSE, PFD_MAIN_PLANE );
|
|
|
|
if ( fgState.UseCurrentContext == TRUE )
|
|
{
|
|
window->Window.Context = wglGetCurrentContext();
|
|
if ( ! window->Window.Context )
|
|
window->Window.Context = wglCreateContext( window->Window.Device );
|
|
}
|
|
else
|
|
window->Window.Context = wglCreateContext( window->Window.Device );
|
|
}
|
|
|
|
/*
|
|
* Still, we'll be needing to explicitly resize the window
|
|
*/
|
|
window->State.NeedToResize = TRUE;
|
|
|
|
/*
|
|
* Finally, have the window's device context released
|
|
*/
|
|
ReleaseDC( window->Window.Handle, window->Window.Device );
|
|
break;
|
|
|
|
case WM_SIZE:
|
|
/*
|
|
* We got resized... But check if the window has been already added...
|
|
*/
|
|
fghReshapeWindowByHandle( hWnd, LOWORD(lParam), 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
|
|
|
|
case WM_SETCURSOR:
|
|
/*
|
|
* Windows seems to need reminding to erase the cursor for NONE.
|
|
*/
|
|
#if 0
|
|
if ((LOWORD(lParam) == HTCLIENT) &&
|
|
(fgStructure.Window->State.Cursor == GLUT_CURSOR_NONE))
|
|
SetCursor( NULL );
|
|
#else
|
|
/* 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 );
|
|
}
|
|
#endif
|
|
else
|
|
lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
|
|
break;
|
|
|
|
case WM_SHOWWINDOW:
|
|
/*
|
|
* We are now Visible!
|
|
*/
|
|
window->State.Visible = TRUE;
|
|
window->State.Redisplay = TRUE;
|
|
break;
|
|
|
|
case WM_PAINT:
|
|
/*
|
|
* Start the painting job
|
|
*/
|
|
|
|
BeginPaint( hWnd, &ps );
|
|
|
|
/*
|
|
* Call the engine's main frame drawing method
|
|
*/
|
|
fghRedrawWindowByHandle( hWnd );
|
|
|
|
/*
|
|
* End the painting job, release the device context
|
|
*/
|
|
EndPaint( hWnd, &ps );
|
|
break;
|
|
|
|
case WM_CLOSE:
|
|
/*
|
|
* Make sure we don't close a window with current context active
|
|
*/
|
|
if( fgStructure.Window == window )
|
|
{
|
|
int used = FALSE ;
|
|
SFG_Window *iter ;
|
|
|
|
wglMakeCurrent( NULL, NULL );
|
|
/* Step through the list of windows. If the rendering context is notbeing used
|
|
* by another window, then we delete it.
|
|
*/
|
|
for ( iter = (SFG_Window *)fgStructure.Windows.First; iter; iter = (SFG_Window *)iter->Node.Next )
|
|
{
|
|
if ( ( iter->Window.Context == window->Window.Context ) && ( iter != window ) )
|
|
used = TRUE ;
|
|
}
|
|
|
|
if ( used == FALSE ) wglDeleteContext( window->Window.Context );
|
|
}
|
|
|
|
/*
|
|
* Put on a linked list of windows to be removed after all the callbacks have returned
|
|
*/
|
|
fgAddToWindowDestroyList ( window, FALSE ) ;
|
|
|
|
/*
|
|
* Proceed with the window destruction
|
|
*/
|
|
DestroyWindow( hWnd );
|
|
break;
|
|
|
|
case WM_DESTROY:
|
|
/*
|
|
* The window already got destroyed, so don't bother with it.
|
|
*/
|
|
return( 0 );
|
|
|
|
case WM_MOUSEMOVE:
|
|
{
|
|
/*
|
|
* The mouse cursor has moved. Remember the new mouse cursor's position
|
|
*/
|
|
window->State.MouseX = LOWORD( lParam );
|
|
window->State.MouseY = HIWORD( lParam );
|
|
|
|
/*
|
|
* Fallback if there's an active menu hooked to this window
|
|
*/
|
|
if ( window->ActiveMenu != NULL )
|
|
{
|
|
/*
|
|
* Let's make the window redraw as a result of the mouse motion.
|
|
*/
|
|
window->State.Redisplay = TRUE ;
|
|
|
|
/*
|
|
* Since the window is a menu, make the parent window current
|
|
*/
|
|
fgSetWindow ( window->ActiveMenu->ParentWindow ) ;
|
|
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Remember the current modifiers state.
|
|
*/
|
|
window->State.Modifiers =
|
|
( ( (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 );
|
|
|
|
/*
|
|
* Check if any of the mouse buttons is pressed...
|
|
*/
|
|
if( (wParam & MK_LBUTTON) || (wParam & MK_MBUTTON) || (wParam & MK_RBUTTON) )
|
|
{
|
|
/*
|
|
* Yeah, indeed. We need to use the motion callback then:
|
|
*/
|
|
if( window->Callbacks.Motion != NULL )
|
|
{
|
|
/*
|
|
* Make sure the current window is set...
|
|
*/
|
|
fgSetWindow( window );
|
|
|
|
/*
|
|
* Execute the active mouse motion callback now
|
|
*/
|
|
window->Callbacks.Motion( window->State.MouseX, window->State.MouseY );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* All mouse buttons are up, execute the passive mouse motion callback
|
|
*/
|
|
if( window->Callbacks.Passive != NULL )
|
|
{
|
|
/*
|
|
* Make sure the current window is set
|
|
*/
|
|
fgSetWindow( window );
|
|
|
|
/*
|
|
* Execute the passive mouse motion callback
|
|
*/
|
|
window->Callbacks.Passive( window->State.MouseX, window->State.MouseY );
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Thrash the current modifiers state now
|
|
*/
|
|
window->State.Modifiers = 0xffffffff;
|
|
}
|
|
break;
|
|
|
|
case WM_LBUTTONDOWN:
|
|
case WM_MBUTTONDOWN:
|
|
case WM_RBUTTONDOWN:
|
|
case WM_LBUTTONUP:
|
|
case WM_MBUTTONUP:
|
|
case WM_RBUTTONUP:
|
|
{
|
|
GLboolean pressed = TRUE;
|
|
int button;
|
|
|
|
/*
|
|
* The mouse cursor has moved. Remember the new mouse cursor's position
|
|
*/
|
|
window->State.MouseX = LOWORD( lParam );
|
|
window->State.MouseY = HIWORD( lParam );
|
|
|
|
/*
|
|
* We're curious about the GLUT API button name...
|
|
*/
|
|
switch( uMsg )
|
|
{
|
|
case WM_LBUTTONDOWN: pressed = TRUE; button = GLUT_LEFT_BUTTON; break;
|
|
case WM_MBUTTONDOWN: pressed = TRUE; button = GLUT_MIDDLE_BUTTON; break;
|
|
case WM_RBUTTONDOWN: pressed = TRUE; button = GLUT_RIGHT_BUTTON; break;
|
|
case WM_LBUTTONUP: pressed = FALSE; button = GLUT_LEFT_BUTTON; break;
|
|
case WM_MBUTTONUP: pressed = FALSE; button = GLUT_MIDDLE_BUTTON; break;
|
|
case WM_RBUTTONUP: pressed = FALSE; button = GLUT_RIGHT_BUTTON; break;
|
|
default: pressed = FALSE; button = -1; break;
|
|
}
|
|
|
|
/*
|
|
* The left and right mouse buttons might have been swapped...
|
|
*/
|
|
if( GetSystemMetrics( SM_SWAPBUTTON ) )
|
|
if( button == GLUT_LEFT_BUTTON ) button = GLUT_RIGHT_BUTTON;
|
|
else if( button == GLUT_RIGHT_BUTTON ) button = GLUT_LEFT_BUTTON;
|
|
|
|
/*
|
|
* Hey, what's up with you?
|
|
*/
|
|
if( button == -1 )
|
|
return( DefWindowProc( hWnd, uMsg, lParam, wParam ) );
|
|
|
|
/*
|
|
* 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
|
|
*/
|
|
if ( window->ActiveMenu != NULL ) /* Window has an active menu, it absorbs any mouse click */
|
|
{
|
|
if ( fgCheckActiveMenu ( window, window->ActiveMenu ) == TRUE ) /* Inside the 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 ( 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 /* Outside the menu, deactivate the menu if it's a downclick */
|
|
{
|
|
if ( pressed == TRUE ) fgDeactivateMenu ( window->ActiveMenu->ParentWindow ) ;
|
|
}
|
|
|
|
/*
|
|
* Let's make the window redraw as a result of the mouse click and menu activity.
|
|
*/
|
|
if ( ! window->IsMenu ) window->State.Redisplay = TRUE ;
|
|
|
|
break ;
|
|
}
|
|
|
|
/*
|
|
* No active menu, let's check whether we need to activate one.
|
|
*/
|
|
if ( ( window->Menu[ button ] != NULL ) && ( pressed == TRUE ) )
|
|
{
|
|
/*
|
|
* Let's make the window redraw as a result of the mouse click.
|
|
*/
|
|
window->State.Redisplay = TRUE ;
|
|
|
|
/*
|
|
* Set the current window
|
|
*/
|
|
fgSetWindow( window );
|
|
|
|
/*
|
|
* Activate the appropriate menu structure...
|
|
*/
|
|
fgActivateMenu( window, button );
|
|
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Check if there is a mouse callback hooked to the window
|
|
*/
|
|
if( window->Callbacks.Mouse == NULL )
|
|
break;
|
|
|
|
/*
|
|
* Set the current window
|
|
*/
|
|
fgSetWindow ( window );
|
|
|
|
/*
|
|
* Remember the current modifiers state.
|
|
*/
|
|
fgStructure.Window->State.Modifiers =
|
|
( ( (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 );
|
|
|
|
/*
|
|
* Finally execute the mouse callback
|
|
*/
|
|
window->Callbacks.Mouse(
|
|
button,
|
|
pressed == TRUE ? GLUT_DOWN : GLUT_UP,
|
|
window->State.MouseX,
|
|
window->State.MouseY
|
|
);
|
|
|
|
/*
|
|
* Trash the modifiers state
|
|
*/
|
|
fgStructure.Window->State.Modifiers = 0xffffffff;
|
|
}
|
|
break;
|
|
|
|
case WM_SYSKEYDOWN:
|
|
case WM_KEYDOWN:
|
|
{
|
|
int keypress = -1;
|
|
POINT mouse_pos ;
|
|
|
|
/*
|
|
* Ignore the automatic key repetition if needed:
|
|
*/
|
|
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.
|
|
*/
|
|
window->State.Modifiers =
|
|
( ( (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 );
|
|
|
|
/*
|
|
* Set the mouse position
|
|
*/
|
|
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 )
|
|
{
|
|
/*
|
|
* Most of the special characters can be handled automagically...
|
|
*/
|
|
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 );
|
|
|
|
/*
|
|
* ...yet there is a small exception we need to have handled...
|
|
*/
|
|
case VK_DELETE:
|
|
/*
|
|
* The delete key should be treated as an ASCII keypress:
|
|
*/
|
|
if( window->Callbacks.Keyboard != NULL )
|
|
{
|
|
fgSetWindow( window );
|
|
window->Callbacks.Keyboard( 127, window->State.MouseX, window->State.MouseY );
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Execute the special callback, if present, given the conversion was a success:
|
|
*/
|
|
if( (keypress != -1) && (window->Callbacks.Special != NULL) )
|
|
{
|
|
/*
|
|
* Set the current window
|
|
*/
|
|
fgSetWindow( window );
|
|
|
|
/*
|
|
* Have the special callback executed:
|
|
*/
|
|
window->Callbacks.Special( keypress, window->State.MouseX, window->State.MouseY );
|
|
}
|
|
|
|
/*
|
|
* Thrash the modifiers register now
|
|
*/
|
|
window->State.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.
|
|
*/
|
|
window->State.Modifiers =
|
|
( ( (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 );
|
|
|
|
/*
|
|
* Set the mouse position
|
|
*/
|
|
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 )
|
|
{
|
|
/*
|
|
* Most of the special characters can be handled automagically...
|
|
*/
|
|
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 );
|
|
|
|
/*
|
|
* ...yet there is a small exception we need to have handled...
|
|
*/
|
|
case VK_DELETE:
|
|
/*
|
|
* The delete key should be treated as an ASCII keypress:
|
|
*/
|
|
if( window->Callbacks.KeyboardUp != NULL )
|
|
{
|
|
fgSetWindow ( window ) ;
|
|
window->Callbacks.KeyboardUp( 127, window->State.MouseX, window->State.MouseY );
|
|
}
|
|
|
|
break ;
|
|
default:
|
|
{
|
|
/*
|
|
* Call the KeyboardUp callback for a regular character if there is one.
|
|
*/
|
|
BYTE state[ 256 ];
|
|
WORD code[ 2 ];
|
|
|
|
GetKeyboardState(state);
|
|
|
|
if ( ToAscii( wParam, 0, state, code, 0 ) == 1 )
|
|
wParam=code[ 0 ];
|
|
|
|
if( window->Callbacks.KeyboardUp != NULL )
|
|
{
|
|
/*
|
|
* Set the current window
|
|
*/
|
|
fgSetWindow( window );
|
|
|
|
window->Callbacks.KeyboardUp( (char)wParam, window->State.MouseX, window->State.MouseY );
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Execute the special callback, if present, given the conversion was a success:
|
|
*/
|
|
if( (keypress != -1) && (window->Callbacks.SpecialUp != NULL) )
|
|
{
|
|
/*
|
|
* Set the current window
|
|
*/
|
|
fgSetWindow( window );
|
|
|
|
/*
|
|
* Have the special callback executed:
|
|
*/
|
|
window->Callbacks.SpecialUp( keypress, window->State.MouseX, window->State.MouseY );
|
|
}
|
|
|
|
/*
|
|
* Thrash the modifiers register now
|
|
*/
|
|
window->State.Modifiers = 0xffffffff;
|
|
}
|
|
break;
|
|
|
|
case WM_SYSCHAR:
|
|
case WM_CHAR:
|
|
{
|
|
/*
|
|
* Ignore the automatic key repetition if needed:
|
|
*/
|
|
if( fgState.IgnoreKeyRepeat && (lParam & KF_REPEAT) )
|
|
break;
|
|
|
|
/*
|
|
* Clear to go with the keyboard callback, if registered:
|
|
*/
|
|
if( window->Callbacks.Keyboard != NULL )
|
|
{
|
|
/*
|
|
* Set the current window
|
|
*/
|
|
fgSetWindow( window );
|
|
|
|
/*
|
|
* Remember the current modifiers state
|
|
*/
|
|
window->State.Modifiers =
|
|
( ( (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 );
|
|
|
|
/*
|
|
* Have the special callback executed:
|
|
*/
|
|
window->Callbacks.Keyboard( (char)wParam, window->State.MouseX, window->State.MouseY );
|
|
|
|
/*
|
|
* Thrash the modifiers register now
|
|
*/
|
|
window->State.Modifiers = 0xffffffff;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case WM_CAPTURECHANGED : /* User has finished resizing the window, force a redraw */
|
|
if ( window->Callbacks.Display )
|
|
{
|
|
/*
|
|
* Set the current window
|
|
*/
|
|
fgSetWindow( window );
|
|
|
|
window->Callbacks.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 = 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 ;
|
|
|
|
default:
|
|
/*
|
|
* Handle unhandled messages
|
|
*/
|
|
lRet = DefWindowProc( hWnd, uMsg, wParam, lParam );
|
|
break;
|
|
}
|
|
|
|
return( lRet );
|
|
}
|
|
#endif
|
|
|
|
/*** END OF FILE ***/
|