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This is the verbatim text of the qgl.h include file. It is provided only for illustration; the copyright remains with Trolltech.
/****************************************************************************
** $Id: qt/qgl.h 3.3.8 edited Jan 11 14:38 $
**
** Definition of OpenGL classes for TQt
**
** Created : 970112
**
** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
**
** This file is part of the opengl module of the TQt GUI Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License versions 2.0 or 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Alternatively you may (at your option) use any
** later version of the GNU General Public License if such license has
** been publicly approved by Trolltech ASA (or its successors, if any)
** and the KDE Free TQt Foundation.
**
** Please review the following information to ensure GNU General
** Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/.
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at sales@trolltech.com.
**
** This file may be used under the terms of the Q Public License as
** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
** included in the packaging of this file. Licensees holding valid TQt
** Commercial licenses may use this file in accordance with the TQt
** Commercial License Agreement provided with the Software.
**
** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
** herein.
**
**********************************************************************/
#ifndef TQGL_H
#define TQGL_H
#ifndef QT_H
#include "qwidget.h"
#include "qglcolormap.h"
#endif // QT_H
#if !defined( QT_MODULE_OPENGL ) || defined( QT_LICENSE_PROFESSIONAL )
#define TQM_EXPORT_OPENGL
#else
#define TQM_EXPORT_OPENGL Q_EXPORT
#endif
#ifndef QT_NO_COMPAT
#define TQGL_VERSION 450
#define TQGL_VERSION_STR "4.5"
TQM_EXPORT_OPENGL inline const char *qGLVersion() {
qObsolete( 0, "qGLVersion", "qVersion" );
return TQGL_VERSION_STR;
}
#endif
#if defined(Q_WS_WIN)
# include "qt_windows.h"
#endif
#if defined(Q_WS_MAC)
#if !defined( TQMAC_OPENGL_DOUBLEBUFFER )
/* This macro is different now. If the macro is not defined TQGLWidget will
* try to determine when you need double buffering. If set to 0 it will
* never double buffer and *can* be acclerated. If set to 1 (the default)
* it will always double buffer. Unlike before the value of this macro does
* not upset binary compatability either. */
#if QT_MACOSX_VERSION >= 0x1020
# define TQMAC_OPENGL_DOUBLEBUFFER 0
#endif
#endif
# include <OpenGL/gl.h>
# include <OpenGL/glu.h>
#else
# include <GL/gl.h>
# include <GL/glu.h>
#endif
#if defined(Q_WS_WIN) || defined(Q_WS_MAC)
class TQGLCmap;
#endif
class TQPixmap;
#if defined(Q_WS_X11)
class TQGLOverlayWidget;
#endif
// Namespace class:
class TQM_EXPORT_OPENGL TQGL
{
public:
enum FormatOption {
DoubleBuffer = 0x0001,
DepthBuffer = 0x0002,
Rgba = 0x0004,
AlphaChannel = 0x0008,
AccumBuffer = 0x0010,
StencilBuffer = 0x0020,
StereoBuffers = 0x0040,
DirectRendering = 0x0080,
HasOverlay = 0x0100,
SingleBuffer = DoubleBuffer << 16,
NoDepthBuffer = DepthBuffer << 16,
ColorIndex = Rgba << 16,
NoAlphaChannel = AlphaChannel << 16,
NoAccumBuffer = AccumBuffer << 16,
NoStencilBuffer = StencilBuffer << 16,
NoStereoBuffers = StereoBuffers << 16,
IndirectRendering = DirectRendering << 16,
NoOverlay = HasOverlay << 16
};
};
class TQM_EXPORT_OPENGL TQGLFormat : public TQGL
{
public:
TQGLFormat();
TQGLFormat( int options, int plane = 0 );
bool doubleBuffer() const;
void setDoubleBuffer( bool enable );
bool depth() const;
void setDepth( bool enable );
bool rgba() const;
void setRgba( bool enable );
bool alpha() const;
void setAlpha( bool enable );
bool accum() const;
void setAccum( bool enable );
bool stencil() const;
void setStencil( bool enable );
bool stereo() const;
void setStereo( bool enable );
bool directRendering() const;
void setDirectRendering( bool enable );
bool hasOverlay() const;
void setOverlay( bool enable );
int plane() const;
void setPlane( int plane );
void setOption( FormatOption opt );
bool testOption( FormatOption opt ) const;
static TQGLFormat defaultFormat();
static void setDefaultFormat( const TQGLFormat& f );
static TQGLFormat defaultOverlayFormat();
static void setDefaultOverlayFormat( const TQGLFormat& f );
static bool hasOpenGL();
static bool hasOpenGLOverlays();
friend TQM_EXPORT_OPENGL bool operator==( const TQGLFormat&,
const TQGLFormat& );
friend TQM_EXPORT_OPENGL bool operator!=( const TQGLFormat&,
const TQGLFormat& );
private:
uint opts;
int pln;
};
TQM_EXPORT_OPENGL bool operator==( const TQGLFormat&, const TQGLFormat& );
TQM_EXPORT_OPENGL bool operator!=( const TQGLFormat&, const TQGLFormat& );
class TQM_EXPORT_OPENGL TQGLContext : public TQGL
{
public:
TQGLContext( const TQGLFormat& format, TQPaintDevice* device );
TQGLContext( const TQGLFormat& format );
virtual ~TQGLContext();
virtual bool create( const TQGLContext* shareContext = 0 );
bool isValid() const;
bool isSharing() const;
virtual void reset();
TQGLFormat format() const;
TQGLFormat requestedFormat() const;
virtual void setFormat( const TQGLFormat& format );
virtual void makeCurrent();
virtual void swapBuffers() const;
TQPaintDevice* device() const;
TQColor overlayTransparentColor() const;
static const TQGLContext* currentContext();
protected:
virtual bool chooseContext( const TQGLContext* shareContext = 0 );
virtual void doneCurrent(); // ### 4.0: make this public - needed for multithreading stuff
#if defined(Q_WS_WIN)
virtual int choosePixelFormat( void* pfd, HDC pdc );
#endif
#if defined(Q_WS_X11)
virtual void* tryVisual( const TQGLFormat& f, int bufDepth = 1 );
virtual void* chooseVisual();
#endif
#if defined(Q_WS_MAC)
virtual void* chooseMacVisual(GDHandle);
#endif
bool deviceIsPixmap() const;
bool windowCreated() const;
void setWindowCreated( bool on );
bool initialized() const;
void setInitialized( bool on );
void generateFontDisplayLists( const TQFont & fnt, int listBase );
uint colorIndex( const TQColor& c ) const;
void setValid( bool valid );
void setDevice( TQPaintDevice *pDev );
protected:
#if defined(Q_WS_WIN)
HGLRC rc;
HDC dc;
WId win;
int pixelFormatId;
TQGLCmap* cmap;
#elif defined(Q_WS_X11) || defined(Q_WS_MAC)
void* vi;
void* cx;
#if defined(Q_WS_X11)
Q_UINT32 gpm;
#endif
#endif
TQGLFormat glFormat;
TQGLFormat reqFormat;
static TQGLContext* currentCtx;
private:
void init( TQPaintDevice *dev = 0 );
class Private {
public:
bool valid;
bool sharing;
bool initDone;
bool crWin;
TQPaintDevice* paintDevice;
TQColor transpColor;
#ifdef Q_WS_MAC
TQRect oldR;
#endif
};
Private* d;
friend class TQGLWidget;
#ifdef Q_WS_MAC
void fixBufferRect();
#endif
private: // Disabled copy constructor and operator=
TQGLContext() {}
TQGLContext( const TQGLContext& ) {}
TQGLContext& operator=( const TQGLContext& ) { return *this; }
};
class TQM_EXPORT_OPENGL TQGLWidget : public TQWidget, public TQGL
{
Q_OBJECT
public:
TQGLWidget( TQWidget* parent=0, const char* name=0,
const TQGLWidget* shareWidget = 0, WFlags f=0 );
TQGLWidget( TQGLContext *context, TQWidget* parent, const char* name=0,
const TQGLWidget* shareWidget = 0, WFlags f=0 );
TQGLWidget( const TQGLFormat& format, TQWidget* parent=0, const char* name=0,
const TQGLWidget* shareWidget = 0, WFlags f=0 );
~TQGLWidget();
void qglColor( const TQColor& c ) const;
void qglClearColor( const TQColor& c ) const;
bool isValid() const;
bool isSharing() const;
virtual void makeCurrent();
void doneCurrent();
bool doubleBuffer() const;
virtual void swapBuffers();
TQGLFormat format() const;
#ifndef Q_QDOC
virtual void setFormat( const TQGLFormat& format );
#endif
const TQGLContext* context() const;
#ifndef Q_QDOC
virtual void setContext( TQGLContext* context,
const TQGLContext* shareContext = 0,
bool deleteOldContext = TRUE );
#endif
virtual TQPixmap renderPixmap( int w = 0, int h = 0,
bool useContext = FALSE );
virtual TQImage grabFrameBuffer( bool withAlpha = FALSE );
virtual void makeOverlayCurrent();
const TQGLContext* overlayContext() const;
static TQImage convertToGLFormat( const TQImage& img );
void setMouseTracking( bool enable );
virtual void reparent( TQWidget* parent, WFlags f, const TQPoint& p,
bool showIt = FALSE );
const TQGLColormap & colormap() const;
void setColormap( const TQGLColormap & map );
void renderText( int x, int y, const TQString & str,
const TQFont & fnt = TQFont(), int listBase = 2000 );
void renderText( double x, double y, double z, const TQString & str,
const TQFont & fnt = TQFont(), int listBase = 2000 );
public slots:
virtual void updateGL();
virtual void updateOverlayGL();
protected:
virtual void initializeGL();
virtual void resizeGL( int w, int h );
virtual void paintGL();
virtual void initializeOverlayGL();
virtual void resizeOverlayGL( int w, int h );
virtual void paintOverlayGL();
void setAutoBufferSwap( bool on );
bool autoBufferSwap() const;
void paintEvent( TQPaintEvent* );
void resizeEvent( TQResizeEvent* );
virtual void glInit();
virtual void glDraw();
private:
int displayListBase( const TQFont & fnt, int listBase );
void cleanupColormaps();
void init( TQGLContext *context, const TQGLWidget* shareWidget );
bool renderCxPm( TQPixmap* pm );
TQGLContext* glcx;
bool autoSwap;
TQGLColormap cmap;
#if defined(Q_WS_WIN) || defined(Q_WS_MAC)
TQGLContext* olcx;
#elif defined(Q_WS_X11)
TQGLOverlayWidget* olw;
friend class TQGLOverlayWidget;
#endif
private: // Disabled copy constructor and operator=
#if defined(Q_DISABLE_COPY)
TQGLWidget( const TQGLWidget& );
TQGLWidget& operator=( const TQGLWidget& );
#endif
#if defined(Q_WS_MAC)
private:
const TQGLContext *slcx;
uint pending_fix : 1,
glcx_dblbuf : 2,
dblbuf : 1,
clp_serial : 15;
TQPixmap *gl_pix;
TQGLFormat req_format;
void macInternalRecreateContext( TQGLContext *ctx,
const TQGLContext* = NULL,
bool update = TRUE );
bool macInternalDoubleBuffer( bool fix = TRUE );
virtual void setRegionDirty( bool );
virtual void macWidgetChangedWindow();
#endif
private slots:
void macInternalFixBufferRect();
};
//
// TQGLFormat inline functions
//
inline bool TQGLFormat::doubleBuffer() const
{
return testOption( DoubleBuffer );
}
inline bool TQGLFormat::depth() const
{
return testOption( DepthBuffer );
}
inline bool TQGLFormat::rgba() const
{
return testOption( Rgba );
}
inline bool TQGLFormat::alpha() const
{
return testOption( AlphaChannel );
}
inline bool TQGLFormat::accum() const
{
return testOption( AccumBuffer );
}
inline bool TQGLFormat::stencil() const
{
return testOption( StencilBuffer );
}
inline bool TQGLFormat::stereo() const
{
return testOption( StereoBuffers );
}
inline bool TQGLFormat::directRendering() const
{
return testOption( DirectRendering );
}
inline bool TQGLFormat::hasOverlay() const
{
return testOption( HasOverlay );
}
//
// TQGLContext inline functions
//
inline bool TQGLContext::isValid() const
{
return d->valid;
}
inline void TQGLContext::setValid( bool valid )
{
d->valid = valid;
}
inline bool TQGLContext::isSharing() const
{
return d->sharing;
}
inline TQGLFormat TQGLContext::format() const
{
return glFormat;
}
inline TQGLFormat TQGLContext::requestedFormat() const
{
return reqFormat;
}
inline TQPaintDevice* TQGLContext::device() const
{
return d->paintDevice;
}
inline bool TQGLContext::deviceIsPixmap() const
{
return d->paintDevice->devType() == TQInternal::Pixmap;
}
inline bool TQGLContext::windowCreated() const
{
return d->crWin;
}
inline void TQGLContext::setWindowCreated( bool on )
{
d->crWin = on;
}
inline bool TQGLContext::initialized() const
{
return d->initDone;
}
inline void TQGLContext::setInitialized( bool on )
{
d->initDone = on;
}
inline const TQGLContext* TQGLContext::currentContext()
{
return currentCtx;
}
//
// TQGLWidget inline functions
//
inline TQGLFormat TQGLWidget::format() const
{
return glcx->format();
}
inline const TQGLContext *TQGLWidget::context() const
{
return glcx;
}
inline bool TQGLWidget::doubleBuffer() const
{
return glcx->format().doubleBuffer();
}
inline void TQGLWidget::setAutoBufferSwap( bool on )
{
autoSwap = on;
}
inline bool TQGLWidget::autoBufferSwap() const
{
return autoSwap;
}
#endif
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