4 * Window management methods.
6 * Copyright (c) 1999-2000 Pawel W. Olszta. All Rights Reserved.
7 * Written by Pawel W. Olszta, <olszta@sourceforge.net>
8 * Creation date: Fri Dec 3 1999
10 * Permission is hereby granted, free of charge, to any person obtaining a
11 * copy of this software and associated documentation files (the "Software"),
12 * to deal in the Software without restriction, including without limitation
13 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
14 * and/or sell copies of the Software, and to permit persons to whom the
15 * Software is furnished to do so, subject to the following conditions:
17 * The above copyright notice and this permission notice shall be included
18 * in all copies or substantial portions of the Software.
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
21 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
23 * PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
24 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
25 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28 #include <GL/freeglut.h>
29 #include "freeglut_internal.h"
31 #if defined(_WIN32_WCE)
32 # include <Aygshell.h>
33 # ifdef FREEGLUT_LIB_PRAGMAS
34 # pragma comment( lib, "Aygshell.lib" )
37 static wchar_t* fghWstrFromStr(const char* str)
39 int i,len=strlen(str);
40 wchar_t* wstr = (wchar_t*)malloc(2*len+2);
47 #endif /* defined(_WIN32_WCE) */
50 * TODO BEFORE THE STABLE RELEASE:
52 * fgChooseVisual() -- OK, but what about glutInitDisplayString()?
53 * fgSetupPixelFormat -- ignores the display mode settings
54 * fgOpenWindow() -- check the Win32 version, -iconic handling!
55 * fgCloseWindow() -- check the Win32 version
56 * glutCreateWindow() -- Check when default position and size is {-1,-1}
57 * glutCreateSubWindow() -- Check when default position and size is {-1,-1}
58 * glutDestroyWindow() -- check the Win32 version
59 * glutSetWindow() -- check the Win32 version
60 * glutGetWindow() -- OK
61 * glutSetWindowTitle() -- check the Win32 version
62 * glutSetIconTitle() -- check the Win32 version
63 * glutShowWindow() -- check the Win32 version
64 * glutHideWindow() -- check the Win32 version
65 * glutIconifyWindow() -- check the Win32 version
66 * glutReshapeWindow() -- check the Win32 version
67 * glutPositionWindow() -- check the Win32 version
68 * glutPushWindow() -- check the Win32 version
69 * glutPopWindow() -- check the Win32 version
72 /* -- PRIVATE FUNCTIONS ---------------------------------------------------- */
75 * Chooses a visual basing on the current display mode settings
77 #if TARGET_HOST_POSIX_X11
79 XVisualInfo* fgChooseVisual( void )
81 #define BUFFER_SIZES 6
82 int bufferSize[BUFFER_SIZES] = { 16, 12, 8, 4, 2, 1 };
83 GLboolean wantIndexedMode = GL_FALSE;
87 /* First we have to process the display mode settings... */
89 * XXX Why is there a semi-colon in this #define? The code
90 * XXX that uses the macro seems to always add more semicolons...
92 #define ATTRIB(a) attributes[where++]=a;
93 #define ATTRIB_VAL(a,v) {ATTRIB(a); ATTRIB(v);}
95 if( fgState.DisplayMode & GLUT_INDEX )
97 ATTRIB_VAL( GLX_BUFFER_SIZE, 8 );
98 wantIndexedMode = GL_TRUE;
103 ATTRIB_VAL( GLX_RED_SIZE, 1 );
104 ATTRIB_VAL( GLX_GREEN_SIZE, 1 );
105 ATTRIB_VAL( GLX_BLUE_SIZE, 1 );
106 if( fgState.DisplayMode & GLUT_ALPHA )
107 ATTRIB_VAL( GLX_ALPHA_SIZE, 1 );
110 if( fgState.DisplayMode & GLUT_DOUBLE )
111 ATTRIB( GLX_DOUBLEBUFFER );
113 if( fgState.DisplayMode & GLUT_STEREO )
114 ATTRIB( GLX_STEREO );
116 if( fgState.DisplayMode & GLUT_DEPTH )
117 ATTRIB_VAL( GLX_DEPTH_SIZE, 1 );
119 if( fgState.DisplayMode & GLUT_STENCIL )
120 ATTRIB_VAL( GLX_STENCIL_SIZE, 1 );
122 if( fgState.DisplayMode & GLUT_ACCUM )
124 ATTRIB_VAL( GLX_ACCUM_RED_SIZE, 1 );
125 ATTRIB_VAL( GLX_ACCUM_GREEN_SIZE, 1 );
126 ATTRIB_VAL( GLX_ACCUM_BLUE_SIZE, 1 );
127 if( fgState.DisplayMode & GLUT_ALPHA )
128 ATTRIB_VAL( GLX_ACCUM_ALPHA_SIZE, 1 );
131 if( fgState.DisplayMode & GLUT_AUX1 )
132 ATTRIB_VAL( GLX_AUX_BUFFERS, 1 );
133 if( fgState.DisplayMode & GLUT_AUX2 )
134 ATTRIB_VAL( GLX_AUX_BUFFERS, 2 );
135 if( fgState.DisplayMode & GLUT_AUX3 )
136 ATTRIB_VAL( GLX_AUX_BUFFERS, 3 );
137 if( fgState.DisplayMode & GLUT_AUX4 )
138 ATTRIB_VAL( GLX_AUX_BUFFERS, 4 );
139 if ( fgState.DisplayMode & GLUT_MULTISAMPLE )
140 ATTRIB_VAL( GLX_SAMPLES_SGIS, 4 );
143 /* Push a null at the end of the list */
146 if( ! wantIndexedMode )
147 return glXChooseVisual( fgDisplay.Display, fgDisplay.Screen,
151 XVisualInfo* visualInfo;
155 * In indexed mode, we need to check how many bits of depth can we
156 * achieve. We do this by trying each possibility from the list
157 * given in the {bufferSize} array. If we match, we return to caller.
159 for( i=0; i<BUFFER_SIZES; i++ )
161 attributes[ 1 ] = bufferSize[ i ];
162 visualInfo = glXChooseVisual( fgDisplay.Display, fgDisplay.Screen,
164 if( visualInfo != NULL )
173 * Setup the pixel format for a Win32 window
175 #if TARGET_HOST_MS_WINDOWS
176 /* The following include file is available from SGI but is not standard:
177 * #include <GL/wglext.h>
178 * So we copy the necessary parts out of it.
179 * XXX: should local definitions for extensions be put in a separate include file?
181 typedef const char * (WINAPI * PFNWGLGETEXTENSIONSSTRINGARBPROC) (HDC hdc);
183 typedef BOOL (WINAPI * PFNWGLCHOOSEPIXELFORMATARBPROC) (HDC hdc, const int *piAttribIList, const FLOAT *pfAttribFList, UINT nMaxFormats, int *piFormats, UINT *nNumFormats);
185 #define WGL_DRAW_TO_WINDOW_ARB 0x2001
186 #define WGL_ACCELERATION_ARB 0x2003
187 #define WGL_SUPPORT_OPENGL_ARB 0x2010
188 #define WGL_DOUBLE_BUFFER_ARB 0x2011
189 #define WGL_COLOR_BITS_ARB 0x2014
190 #define WGL_ALPHA_BITS_ARB 0x201B
191 #define WGL_DEPTH_BITS_ARB 0x2022
192 #define WGL_STENCIL_BITS_ARB 0x2023
193 #define WGL_FULL_ACCELERATION_ARB 0x2027
195 #define WGL_SAMPLE_BUFFERS_ARB 0x2041
196 #define WGL_SAMPLES_ARB 0x2042
199 GLboolean fgSetupPixelFormat( SFG_Window* window, GLboolean checkOnly,
200 unsigned char layer_type )
202 #if defined(_WIN32_WCE)
205 PIXELFORMATDESCRIPTOR* ppfd, pfd;
206 int flags, pixelformat;
208 freeglut_return_val_if_fail( window != NULL, 0 );
209 flags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL;
210 if( fgState.DisplayMode & GLUT_DOUBLE )
211 flags |= PFD_DOUBLEBUFFER;
213 if( fgState.DisplayMode & GLUT_STEREO )
216 #if defined(_MSC_VER)
217 #pragma message( "fgSetupPixelFormat(): there is still some work to do here!" )
220 /* Specify which pixel format do we opt for... */
221 pfd.nSize = sizeof(PIXELFORMATDESCRIPTOR);
225 if( fgState.DisplayMode & GLUT_INDEX )
227 pfd.iPixelType = PFD_TYPE_COLORINDEX;
235 pfd.iPixelType = PFD_TYPE_RGBA;
239 if ( fgState.DisplayMode & GLUT_ALPHA )
251 pfd.cAccumRedBits = 0;
252 pfd.cAccumGreenBits = 0;
253 pfd.cAccumBlueBits = 0;
254 pfd.cAccumAlphaBits = 0;
257 pfd.cStencilBits = 0;
260 pfd.cStencilBits = 8;
262 if( fgState.DisplayMode & GLUT_AUX4 )
264 else if( fgState.DisplayMode & GLUT_AUX3 )
266 else if( fgState.DisplayMode & GLUT_AUX2 )
268 else if( fgState.DisplayMode & GLUT_AUX1 )
273 pfd.iLayerType = layer_type;
276 pfd.dwVisibleMask = 0;
277 pfd.dwDamageMask = 0;
279 pfd.cColorBits = (BYTE) GetDeviceCaps( window->Window.Device, BITSPIXEL );
282 pixelformat = ChoosePixelFormat( window->Window.Device, ppfd );
284 /* windows hack for multismapling */
285 if (fgState.DisplayMode&GLUT_MULTISAMPLE)
287 PFNWGLGETEXTENSIONSSTRINGARBPROC wglGetEntensionsStringARB=NULL;
288 HGLRC rc, rc_before=wglGetCurrentContext();
290 HDC hDC, hDC_before=wglGetCurrentDC();
294 /* create a dummy window */
295 ZeroMemory(&wndCls, sizeof(wndCls));
296 wndCls.lpfnWndProc = DefWindowProc;
297 wndCls.hInstance = fgDisplay.Instance;
298 wndCls.style = CS_OWNDC | CS_HREDRAW | CS_VREDRAW;
299 wndCls.lpszClassName = _T("FREEGLUT_dummy");
300 atom = RegisterClass( &wndCls );
302 hWnd=CreateWindow((LPCSTR)atom, _T(""), WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_OVERLAPPEDWINDOW , 0,0,0,0, 0, 0, fgDisplay.Instance, 0 );
304 SetPixelFormat( hDC, pixelformat, ppfd );
306 rc = wglCreateContext( hDC );
307 wglMakeCurrent(hDC, rc);
309 wglGetEntensionsStringARB=(PFNWGLGETEXTENSIONSSTRINGARBPROC)wglGetProcAddress("wglGetExtensionsStringARB");
310 if (wglGetEntensionsStringARB)
312 const char * pWglExtString=wglGetEntensionsStringARB(hDC);
315 if (strstr(pWglExtString, "WGL_ARB_multisample"))
317 int pAttributes[100];
321 float fAttributes[] = {0,0};
323 PFNWGLCHOOSEPIXELFORMATARBPROC wglChoosePixelFormatARBProc=NULL;
325 wglChoosePixelFormatARBProc=(PFNWGLCHOOSEPIXELFORMATARBPROC)wglGetProcAddress("wglChoosePixelFormatARB");
326 if ( wglChoosePixelFormatARBProc )
328 pAttributes[iCounter++]=WGL_DRAW_TO_WINDOW_ARB; pAttributes[iCounter++]=GL_TRUE;
329 pAttributes[iCounter++]=WGL_SUPPORT_OPENGL_ARB; pAttributes[iCounter++]=GL_TRUE;
330 pAttributes[iCounter++]=WGL_ACCELERATION_ARB; pAttributes[iCounter++]=WGL_FULL_ACCELERATION_ARB;
332 pAttributes[iCounter++]=WGL_COLOR_BITS_ARB; pAttributes[iCounter++]=pfd.cColorBits ;
333 pAttributes[iCounter++]=WGL_ALPHA_BITS_ARB; pAttributes[iCounter++]=pfd.cAlphaBits;
334 pAttributes[iCounter++]=WGL_DEPTH_BITS_ARB; pAttributes[iCounter++]=pfd.cDepthBits;
335 pAttributes[iCounter++]=WGL_STENCIL_BITS_ARB; pAttributes[iCounter++]=pfd.cStencilBits;
337 pAttributes[iCounter++]=WGL_DOUBLE_BUFFER_ARB; pAttributes[iCounter++]=(fgState.DisplayMode & GLUT_DOUBLE)!=0;
338 pAttributes[iCounter++]=WGL_SAMPLE_BUFFERS_ARB; pAttributes[iCounter++]=GL_TRUE;
339 pAttributes[iCounter++]=WGL_SAMPLES_ARB; pAttributes[iCounter++]=4;
340 pAttributes[iCounter++]=0; pAttributes[iCounter++]=0; /* terminator */
342 bValid = wglChoosePixelFormatARBProc(window->Window.Device,pAttributes,fAttributes,1,&iPixelFormat,&numFormats);
344 if (bValid && numFormats>0)
345 pixelformat=iPixelFormat;
348 wglMakeCurrent( hDC_before, rc_before);
349 wglDeleteContext(rc);
350 ReleaseDC(hWnd, hDC);
352 UnregisterClass(_T("FREEGLUT_dummy"), fgDisplay.Instance);
357 if( pixelformat == 0 )
362 return SetPixelFormat( window->Window.Device, pixelformat, ppfd );
363 #endif /* defined(_WIN32_WCE) */
365 #endif /* TARGET_HOST_MS_WINDOWS */
368 * Sets the OpenGL context and the fgStructure "Current Window" pointer to
369 * the window structure passed in.
371 void fgSetWindow ( SFG_Window *window )
373 #if TARGET_HOST_POSIX_X11
377 window->Window.Handle,
378 window->Window.Context
380 #elif TARGET_HOST_MS_WINDOWS
381 if( fgStructure.CurrentWindow )
382 ReleaseDC( fgStructure.CurrentWindow->Window.Handle,
383 fgStructure.CurrentWindow->Window.Device );
387 window->Window.Device = GetDC( window->Window.Handle );
389 window->Window.Device,
390 window->Window.Context
394 fgStructure.CurrentWindow = window;
399 * Opens a window. Requires a SFG_Window object created and attached
400 * to the freeglut structure. OpenGL context is created here.
402 void fgOpenWindow( SFG_Window* window, const char* title,
403 GLboolean positionUse, int x, int y,
404 GLboolean sizeUse, int w, int h,
405 GLboolean gameMode, GLboolean isSubWindow )
407 #if TARGET_HOST_POSIX_X11
408 XSetWindowAttributes winAttr;
409 XTextProperty textProperty;
410 XSizeHints sizeHints;
413 unsigned int current_DisplayMode = fgState.DisplayMode ;
415 /* Save the display mode if we are creating a menu window */
416 if( window->IsMenu && ( ! fgStructure.MenuContext ) )
417 fgState.DisplayMode = GLUT_DOUBLE | GLUT_RGB ;
419 window->Window.VisualInfo = fgChooseVisual( );
421 if( window->IsMenu && ( ! fgStructure.MenuContext ) )
422 fgState.DisplayMode = current_DisplayMode ;
424 if( ! window->Window.VisualInfo )
427 * The "fgChooseVisual" returned a null meaning that the visual
428 * context is not available.
429 * Try a couple of variations to see if they will work.
431 if( !( fgState.DisplayMode & GLUT_DOUBLE ) )
433 fgState.DisplayMode |= GLUT_DOUBLE ;
434 window->Window.VisualInfo = fgChooseVisual( );
435 fgState.DisplayMode &= ~GLUT_DOUBLE;
438 if( fgState.DisplayMode & GLUT_MULTISAMPLE )
440 fgState.DisplayMode &= ~GLUT_MULTISAMPLE ;
441 window->Window.VisualInfo = fgChooseVisual( );
442 fgState.DisplayMode |= GLUT_MULTISAMPLE;
446 FREEGLUT_INTERNAL_ERROR_EXIT( window->Window.VisualInfo != NULL,
447 "Visual with necessary capabilities not found", "fgOpenWindow" );
450 * XXX HINT: the masks should be updated when adding/removing callbacks.
451 * XXX This might speed up message processing. Is that true?
453 * XXX A: Not appreciably, but it WILL make it easier to debug.
454 * XXX Try tracing old GLUT and try tracing freeglut. Old GLUT
455 * XXX turns off events that it doesn't need and is a whole lot
456 * XXX more pleasant to trace. (Think mouse-motion! Tons of
457 * XXX ``bonus'' GUI events stream in.)
460 StructureNotifyMask | SubstructureNotifyMask | ExposureMask |
461 ButtonPressMask | ButtonReleaseMask | KeyPressMask | KeyReleaseMask |
462 VisibilityChangeMask | EnterWindowMask | LeaveWindowMask |
463 PointerMotionMask | ButtonMotionMask;
464 winAttr.background_pixmap = None;
465 winAttr.background_pixel = 0;
466 winAttr.border_pixel = 0;
468 winAttr.colormap = XCreateColormap(
469 fgDisplay.Display, fgDisplay.RootWindow,
470 window->Window.VisualInfo->visual, AllocNone
473 mask = CWBackPixmap | CWBorderPixel | CWColormap | CWEventMask;
475 if( window->IsMenu || ( gameMode == GL_TRUE ) )
477 winAttr.override_redirect = True;
478 mask |= CWOverrideRedirect;
482 x = y = -1; /* default window position */
484 w = h = 300; /* default window size */
486 window->Window.Handle = XCreateWindow(
488 window->Parent == NULL ? fgDisplay.RootWindow :
489 window->Parent->Window.Handle,
491 window->Window.VisualInfo->depth, InputOutput,
492 window->Window.VisualInfo->visual, mask,
497 * The GLX context creation, possibly trying the direct context rendering
498 * or else use the current context if the user has so specified
503 * If there isn't already an OpenGL rendering context for menu
506 if( !fgStructure.MenuContext )
508 fgStructure.MenuContext =
509 (SFG_MenuContext *)malloc( sizeof(SFG_MenuContext) );
510 fgStructure.MenuContext->MVisualInfo = window->Window.VisualInfo;
511 fgStructure.MenuContext->MContext = glXCreateContext(
512 fgDisplay.Display, fgStructure.MenuContext->MVisualInfo,
513 NULL, ( fgState.DirectContext != GLUT_FORCE_INDIRECT_CONTEXT )
517 /* window->Window.Context = fgStructure.MenuContext->MContext; */
518 window->Window.Context = glXCreateContext(
519 fgDisplay.Display, window->Window.VisualInfo,
520 NULL, ( fgState.DirectContext != GLUT_FORCE_INDIRECT_CONTEXT )
523 else if( fgState.UseCurrentContext )
525 window->Window.Context = glXGetCurrentContext( );
527 if( ! window->Window.Context )
528 window->Window.Context = glXCreateContext(
529 fgDisplay.Display, window->Window.VisualInfo,
530 NULL, ( fgState.DirectContext != GLUT_FORCE_INDIRECT_CONTEXT )
534 window->Window.Context = glXCreateContext(
535 fgDisplay.Display, window->Window.VisualInfo,
536 NULL, ( fgState.DirectContext != GLUT_FORCE_INDIRECT_CONTEXT )
539 #if !defined( __FreeBSD__ ) && !defined( __NetBSD__ )
540 if( !glXIsDirect( fgDisplay.Display, window->Window.Context ) )
542 if( fgState.DirectContext == GLUT_FORCE_DIRECT_CONTEXT )
543 fgError( "Unable to force direct context rendering for window '%s'",
545 else if( fgState.DirectContext == GLUT_TRY_DIRECT_CONTEXT )
546 fgWarning( "Unable to create direct context rendering for window '%s'\nThis may hurt performance.",
552 * XXX Assume the new window is visible by default
553 * XXX Is this a safe assumption?
555 window->State.Visible = GL_TRUE;
559 sizeHints.flags |= USPosition;
561 sizeHints.flags |= USSize;
564 * Fill in the size hints values now (the x, y, width and height
565 * settings are obsolete, are there any more WMs that support them?)
566 * Unless the X servers actually stop supporting these, we should
567 * continue to fill them in. It is *not* our place to tell the user
568 * that they should replace a window manager that they like, and which
569 * works, just because *we* think that it's not "modern" enough.
574 sizeHints.height = h;
576 wmHints.flags = StateHint;
577 wmHints.initial_state = fgState.ForceIconic ? IconicState : NormalState;
578 /* Prepare the window and iconified window names... */
579 XStringListToTextProperty( (char **) &title, 1, &textProperty );
583 window->Window.Handle,
592 XFree( textProperty.value );
594 XSetWMProtocols( fgDisplay.Display, window->Window.Handle,
595 &fgDisplay.DeleteWindow, 1 );
599 window->Window.Handle,
600 window->Window.Context
603 XMapWindow( fgDisplay.Display, window->Window.Handle );
605 #elif TARGET_HOST_MS_WINDOWS
613 /* Grab the window class we have registered on glutInit(): */
614 atom = GetClassInfo( fgDisplay.Instance, _T("FREEGLUT"), &wc );
615 FREEGLUT_INTERNAL_ERROR_EXIT ( atom, "Window Class Info Not Found",
620 FREEGLUT_INTERNAL_ERROR_EXIT ( window->Parent == NULL,
621 "Game mode being invoked on a subwindow",
625 * Set the window creation flags appropriately to make the window
628 flags = WS_POPUP | WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_VISIBLE;
632 int worig = w, horig = h;
634 #if !defined(_WIN32_WCE)
635 if ( ( ! isSubWindow ) && ( ! window->IsMenu ) )
638 * Update the window dimensions, taking account of window
639 * decorations. "freeglut" is to create the window with the
640 * outside of its border at (x,y) and with dimensions (w,h).
642 w += (GetSystemMetrics( SM_CXSIZEFRAME ) )*2;
643 h += (GetSystemMetrics( SM_CYSIZEFRAME ) )*2 +
644 GetSystemMetrics( SM_CYCAPTION );
646 #endif /* defined(_WIN32_WCE) */
653 /* setting State.Width/Height to call resize callback later */
656 if( ! window->IsMenu )
661 else /* fail safe - Windows can make a window of size (0, 0) */
662 w = h = 300; /* default window size */
663 window->State.Width = window->State.Height = -1;
667 window->State.Width = worig;
668 window->State.Height = horig;
672 * There's a small difference between creating the top, child and
675 flags = WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_VISIBLE;
677 if ( window->IsMenu )
680 exFlags |= WS_EX_TOOLWINDOW;
682 #if !defined(_WIN32_WCE)
683 else if( window->Parent == NULL )
684 flags |= WS_OVERLAPPEDWINDOW;
690 #if defined(_WIN32_WCE)
692 wchar_t* wstr = fghWstrFromStr(title);
694 window->Window.Handle = CreateWindow(
697 WS_VISIBLE | WS_POPUP,
707 SHFullScreen(window->Window.Handle, SHFS_HIDESTARTICON);
708 SHFullScreen(window->Window.Handle, SHFS_HIDESIPBUTTON);
709 SHFullScreen(window->Window.Handle, SHFS_HIDETASKBAR);
710 MoveWindow(window->Window.Handle, 0, 0, 240, 320, TRUE);
711 ShowWindow(window->Window.Handle, SW_SHOW);
712 UpdateWindow(window->Window.Handle);
715 window->Window.Handle = CreateWindowEx(
721 (HWND) window->Parent == NULL ? NULL : window->Parent->Window.Handle,
726 #endif /* defined(_WIN32_WCE) */
728 if( !( window->Window.Handle ) )
729 fgError( "Failed to create a window (%s)!", title );
731 /* Make a menu window always on top - fix Feature Request 947118 */
732 if( window->IsMenu || gameMode )
734 window->Window.Handle,
737 SWP_NOMOVE | SWP_NOSIZE
740 /* Hack to remove the caption (title bar) and/or border
741 * and all the system menu controls.
743 WindowStyle = GetWindowLong(window->Window.Handle, GWL_STYLE);
744 if ( fgState.DisplayMode & GLUT_CAPTIONLESS )
746 SetWindowLong ( window->Window.Handle, GWL_STYLE,
747 WindowStyle & ~(WS_DLGFRAME | WS_SYSMENU | WS_MINIMIZEBOX | WS_MAXIMIZEBOX));
749 else if ( fgState.DisplayMode & GLUT_BORDERLESS )
751 SetWindowLong ( window->Window.Handle, GWL_STYLE,
752 WindowStyle & ~(WS_BORDER | WS_SYSMENU | WS_MINIMIZEBOX | WS_MAXIMIZEBOX));
754 //SetWindowPos(window->Window.Handle, NULL, 0, 0, 0, 0,
755 // SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER | SWP_FRAMECHANGED);
758 #if defined(_WIN32_WCE)
759 ShowWindow( window->Window.Handle, SW_SHOW );
761 ShowWindow( window->Window.Handle,
762 fgState.ForceIconic ? SW_SHOWMINIMIZED : SW_SHOW );
763 #endif /* defined(_WIN32_WCE) */
765 UpdateWindow( window->Window.Handle );
766 ShowCursor( TRUE ); /* XXX Old comments say "hide cursor"! */
770 fgSetWindow( window );
772 window->Window.DoubleBuffered =
773 ( fgState.DisplayMode & GLUT_DOUBLE ) ? 1 : 0;
775 if ( ! window->Window.DoubleBuffered )
777 glDrawBuffer ( GL_FRONT );
778 glReadBuffer ( GL_FRONT );
783 * Closes a window, destroying the frame and OpenGL context
785 void fgCloseWindow( SFG_Window* window )
787 #if TARGET_HOST_POSIX_X11
789 glXDestroyContext( fgDisplay.Display, window->Window.Context );
790 XFree( window->Window.VisualInfo );
791 XDestroyWindow( fgDisplay.Display, window->Window.Handle );
792 XFlush( fgDisplay.Display ); /* XXX Shouldn't need this */
794 #elif TARGET_HOST_MS_WINDOWS
796 /* Make sure we don't close a window with current context active */
797 if( fgStructure.CurrentWindow == window )
798 wglMakeCurrent( NULL, NULL );
801 * Step through the list of windows. If the rendering context
802 * is not being used by another window, then we delete it.
808 for( iter = (SFG_Window *)fgStructure.Windows.First;
810 iter = (SFG_Window *)iter->Node.Next )
812 if( ( iter->Window.Context == window->Window.Context ) &&
818 wglDeleteContext( window->Window.Context );
821 DestroyWindow( window->Window.Handle );
826 /* -- INTERFACE FUNCTIONS -------------------------------------------------- */
829 * Creates a new top-level freeglut window
831 int FGAPIENTRY glutCreateWindow( const char* title )
833 /* XXX GLUT does not exit; it simply calls "glutInit" quietly if the
834 * XXX application has not already done so. The "freeglut" community
835 * XXX decided not to go this route (freeglut-developer e-mail from
836 * XXX Steve Baker, 12/16/04, 4:22 PM CST, "Re: [Freeglut-developer]
837 * XXX Desired 'freeglut' behaviour when there is no current window"
839 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutCreateWindow" );
841 return fgCreateWindow( NULL, title, fgState.Position.Use,
842 fgState.Position.X, fgState.Position.Y,
843 fgState.Size.Use, fgState.Size.X, fgState.Size.Y,
844 GL_FALSE, GL_FALSE )->ID;
848 * This function creates a sub window.
850 int FGAPIENTRY glutCreateSubWindow( int parentID, int x, int y, int w, int h )
853 SFG_Window* window = NULL;
854 SFG_Window* parent = NULL;
856 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutCreateSubWindow" );
857 parent = fgWindowByID( parentID );
858 freeglut_return_val_if_fail( parent != NULL, 0 );
861 x = parent->State.Width + x ;
862 if ( w >= 0 ) x -= w ;
865 if ( w < 0 ) w = parent->State.Width - x + w ;
874 y = parent->State.Height + y ;
875 if ( h >= 0 ) y -= h ;
878 if ( h < 0 ) h = parent->State.Height - y + h ;
885 window = fgCreateWindow( parent, "", GL_TRUE, x, y, GL_TRUE, w, h, GL_FALSE, GL_FALSE );
892 * Destroys a window and all of its subwindows
894 void FGAPIENTRY glutDestroyWindow( int windowID )
897 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutDestroyWindow" );
898 window = fgWindowByID( windowID );
899 freeglut_return_if_fail( window != NULL );
901 fgExecutionState ExecState = fgState.ExecState;
902 fgAddToWindowDestroyList( window );
903 fgState.ExecState = ExecState;
908 * This function selects the current window
910 void FGAPIENTRY glutSetWindow( int ID )
912 SFG_Window* window = NULL;
914 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSetWindow" );
915 if( fgStructure.CurrentWindow != NULL )
916 if( fgStructure.CurrentWindow->ID == ID )
919 window = fgWindowByID( ID );
922 fgWarning( "glutSetWindow(): window ID %d not found!", ID );
926 fgSetWindow( window );
930 * This function returns the ID number of the current window, 0 if none exists
932 int FGAPIENTRY glutGetWindow( void )
934 SFG_Window *win = fgStructure.CurrentWindow;
936 * Since GLUT did not throw an error if this function was called without a prior call to
937 * "glutInit", this function shouldn't do so here. Instead let us return a zero.
938 * See Feature Request "[ 1307049 ] glutInit check".
940 if ( ! fgState.Initialised )
943 while ( win && win->IsMenu )
945 return win ? win->ID : 0;
949 * This function makes the current window visible
951 void FGAPIENTRY glutShowWindow( void )
953 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutShowWindow" );
954 FREEGLUT_EXIT_IF_NO_WINDOW ( "glutShowWindow" );
956 #if TARGET_HOST_POSIX_X11
958 XMapWindow( fgDisplay.Display, fgStructure.CurrentWindow->Window.Handle );
959 XFlush( fgDisplay.Display ); /* XXX Shouldn't need this */
961 #elif TARGET_HOST_MS_WINDOWS
963 ShowWindow( fgStructure.CurrentWindow->Window.Handle, SW_SHOW );
967 fgStructure.CurrentWindow->State.Redisplay = GL_TRUE;
971 * This function hides the current window
973 void FGAPIENTRY glutHideWindow( void )
975 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutHideWindow" );
976 FREEGLUT_EXIT_IF_NO_WINDOW ( "glutHideWindow" );
978 #if TARGET_HOST_POSIX_X11
980 if( fgStructure.CurrentWindow->Parent == NULL )
981 XWithdrawWindow( fgDisplay.Display,
982 fgStructure.CurrentWindow->Window.Handle,
985 XUnmapWindow( fgDisplay.Display,
986 fgStructure.CurrentWindow->Window.Handle );
987 XFlush( fgDisplay.Display ); /* XXX Shouldn't need this */
989 #elif TARGET_HOST_MS_WINDOWS
991 ShowWindow( fgStructure.CurrentWindow->Window.Handle, SW_HIDE );
995 fgStructure.CurrentWindow->State.Redisplay = GL_FALSE;
999 * Iconify the current window (top-level windows only)
1001 void FGAPIENTRY glutIconifyWindow( void )
1003 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutIconifyWindow" );
1004 FREEGLUT_EXIT_IF_NO_WINDOW ( "glutIconifyWindow" );
1006 fgStructure.CurrentWindow->State.Visible = GL_FALSE;
1007 #if TARGET_HOST_POSIX_X11
1009 XIconifyWindow( fgDisplay.Display, fgStructure.CurrentWindow->Window.Handle,
1011 XFlush( fgDisplay.Display ); /* XXX Shouldn't need this */
1013 #elif TARGET_HOST_MS_WINDOWS
1015 ShowWindow( fgStructure.CurrentWindow->Window.Handle, SW_MINIMIZE );
1019 fgStructure.CurrentWindow->State.Redisplay = GL_FALSE;
1023 * Set the current window's title
1025 void FGAPIENTRY glutSetWindowTitle( const char* title )
1027 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSetWindowTitle" );
1028 FREEGLUT_EXIT_IF_NO_WINDOW ( "glutSetWindowTitle" );
1029 if( ! fgStructure.CurrentWindow->Parent )
1031 #if TARGET_HOST_POSIX_X11
1035 text.value = (unsigned char *) title;
1036 text.encoding = XA_STRING;
1038 text.nitems = strlen( title );
1042 fgStructure.CurrentWindow->Window.Handle,
1046 XFlush( fgDisplay.Display ); /* XXX Shouldn't need this */
1048 #elif TARGET_HOST_MS_WINDOWS
1051 wchar_t* wstr = fghWstrFromStr(title);
1052 SetWindowText( fgStructure.CurrentWindow->Window.Handle, wstr );
1056 SetWindowText( fgStructure.CurrentWindow->Window.Handle, title );
1064 * Set the current window's iconified title
1066 void FGAPIENTRY glutSetIconTitle( const char* title )
1068 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSetIconTitle" );
1069 FREEGLUT_EXIT_IF_NO_WINDOW ( "glutSetIconTitle" );
1071 if( ! fgStructure.CurrentWindow->Parent )
1073 #if TARGET_HOST_POSIX_X11
1077 text.value = (unsigned char *) title;
1078 text.encoding = XA_STRING;
1080 text.nitems = strlen( title );
1084 fgStructure.CurrentWindow->Window.Handle,
1088 XFlush( fgDisplay.Display ); /* XXX Shouldn't need this */
1090 #elif TARGET_HOST_MS_WINDOWS
1093 wchar_t* wstr = fghWstrFromStr(title);
1094 SetWindowText( fgStructure.CurrentWindow->Window.Handle, wstr );
1098 SetWindowText( fgStructure.CurrentWindow->Window.Handle, title );
1106 * Change the current window's size
1108 void FGAPIENTRY glutReshapeWindow( int width, int height )
1110 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutReshapeWindow" );
1111 FREEGLUT_EXIT_IF_NO_WINDOW ( "glutReshapeWindow" );
1113 fgStructure.CurrentWindow->State.NeedToResize = GL_TRUE;
1114 fgStructure.CurrentWindow->State.Width = width ;
1115 fgStructure.CurrentWindow->State.Height = height;
1119 * Change the current window's position
1121 void FGAPIENTRY glutPositionWindow( int x, int y )
1123 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutPositionWindow" );
1124 FREEGLUT_EXIT_IF_NO_WINDOW ( "glutPositionWindow" );
1126 #if TARGET_HOST_POSIX_X11
1128 XMoveWindow( fgDisplay.Display, fgStructure.CurrentWindow->Window.Handle,
1130 XFlush( fgDisplay.Display ); /* XXX Shouldn't need this */
1132 #elif TARGET_HOST_MS_WINDOWS
1137 /* "GetWindowRect" returns the pixel coordinates of the outside of the window */
1138 GetWindowRect( fgStructure.CurrentWindow->Window.Handle, &winRect );
1140 fgStructure.CurrentWindow->Window.Handle,
1143 winRect.right - winRect.left,
1144 winRect.bottom - winRect.top,
1153 * Lowers the current window (by Z order change)
1155 void FGAPIENTRY glutPushWindow( void )
1157 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutPushWindow" );
1158 FREEGLUT_EXIT_IF_NO_WINDOW ( "glutPushWindow" );
1160 #if TARGET_HOST_POSIX_X11
1162 XLowerWindow( fgDisplay.Display, fgStructure.CurrentWindow->Window.Handle );
1164 #elif TARGET_HOST_MS_WINDOWS
1167 fgStructure.CurrentWindow->Window.Handle,
1170 SWP_NOSIZE | SWP_NOMOVE
1177 * Raises the current window (by Z order change)
1179 void FGAPIENTRY glutPopWindow( void )
1181 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutPopWindow" );
1182 FREEGLUT_EXIT_IF_NO_WINDOW ( "glutPopWindow" );
1184 #if TARGET_HOST_POSIX_X11
1186 XRaiseWindow( fgDisplay.Display, fgStructure.CurrentWindow->Window.Handle );
1188 #elif TARGET_HOST_MS_WINDOWS
1191 fgStructure.CurrentWindow->Window.Handle,
1194 SWP_NOSIZE | SWP_NOMOVE
1201 * Resize the current window so that it fits the whole screen
1203 void FGAPIENTRY glutFullScreen( void )
1205 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutFullScreen" );
1206 FREEGLUT_EXIT_IF_NO_WINDOW ( "glutFullScreen" );
1209 #if TARGET_HOST_POSIX_X11
1215 fgStructure.CurrentWindow->Window.Handle,
1217 fgDisplay.ScreenWidth,
1218 fgDisplay.ScreenHeight
1221 XFlush( fgDisplay.Display ); /* This is needed */
1223 XTranslateCoordinates(
1225 fgStructure.CurrentWindow->Window.Handle,
1226 fgDisplay.RootWindow,
1234 fgStructure.CurrentWindow->Window.Handle,
1237 XFlush( fgDisplay.Display ); /* XXX Shouldn't need this */
1239 #elif TARGET_HOST_MS_WINDOWS && !defined(_WIN32_WCE) /* FIXME: what about WinCE */
1242 /* For fullscreen mode, force the top-left corner to 0,0
1243 * and adjust the window rectangle so that the client area
1244 * covers the whole screen.
1249 rect.right = fgDisplay.ScreenWidth;
1250 rect.bottom = fgDisplay.ScreenHeight;
1252 AdjustWindowRect ( &rect, WS_OVERLAPPEDWINDOW | WS_CLIPSIBLINGS |
1253 WS_CLIPCHILDREN, FALSE );
1256 * SWP_NOACTIVATE Do not activate the window
1257 * SWP_NOOWNERZORDER Do not change position in z-order
1258 * SWP_NOSENDCHANGING Supress WM_WINDOWPOSCHANGING message
1259 * SWP_NOZORDER Retains the current Z order (ignore 2nd param)
1262 SetWindowPos( fgStructure.CurrentWindow->Window.Handle,
1266 rect.right - rect.left,
1267 rect.bottom - rect.top,
1268 SWP_NOACTIVATE | SWP_NOOWNERZORDER | SWP_NOSENDCHANGING |
1276 * A.Donev: Set and retrieve the window's user data
1278 void* FGAPIENTRY glutGetWindowData( void )
1280 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutGetWindowData" );
1281 FREEGLUT_EXIT_IF_NO_WINDOW ( "glutGetWindowData" );
1282 return fgStructure.CurrentWindow->UserData;
1285 void FGAPIENTRY glutSetWindowData(void* data)
1287 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSetWindowData" );
1288 FREEGLUT_EXIT_IF_NO_WINDOW ( "glutSetWindowData" );
1289 fgStructure.CurrentWindow->UserData = data;
1292 /*** END OF FILE ***/