QGLWidgetGLPaintDevice Class Reference

#include <qglpaintdevice_p.h>

Inheritance diagram for QGLWidgetGLPaintDevice:

Public Functions
virtual void	beginPaint ()
virtual QGLContext *	context () const
virtual void	endPaint ()
virtual QPaintEngine *	paintEngine () const
	QGLWidgetGLPaintDevice ()
void	setWidget (QGLWidget *)
virtual QSize	size () const
Public Functions inherited from QGLPaintDevice
virtual bool	alphaRequested () const
int	devType () const
virtual void	ensureActiveTarget ()
virtual QGLFormat	format () const
virtual bool	isFlipped () const
	QGLPaintDevice ()
virtual	~QGLPaintDevice ()
Public Functions inherited from QPaintDevice
int	colorCount () const
int	depth () const
virtual HDC	getDC () const
int	height () const
int	heightMM () const
int	logicalDpiX () const
int	logicalDpiY () const
QT_DEPRECATED int	numColors () const
bool	paintingActive () const
int	physicalDpiX () const
int	physicalDpiY () const
virtual void	releaseDC (HDC hdc) const
int	width () const
int	widthMM () const
virtual	~QPaintDevice ()

Properties
QGLWidget *	glWidget

Friends
class	QGLWidget

Additional Inherited Members
Public Types inherited from QPaintDevice
enum	PaintDeviceMetric {   PdmWidth = 1, PdmHeight, PdmWidthMM, PdmHeightMM,   PdmNumColors, PdmDepth, PdmDpiX, PdmDpiY,   PdmPhysicalDpiX, PdmPhysicalDpiY }
Static Public Functions inherited from QGLPaintDevice
static QGLPaintDevice *	getDevice (QPaintDevice *)
Static Public Functions inherited from QPaintDevice
static QWSDisplay *	qwsDisplay ()
Protected Functions inherited from QGLPaintDevice
int	metric (QPaintDevice::PaintDeviceMetric metric) const
Protected Functions inherited from QPaintDevice
	QPaintDevice ()
Protected Variables inherited from QGLPaintDevice
GLuint	m_previousFBO
GLuint	m_thisFBO
Protected Variables inherited from QPaintDevice
ushort	painters
Related Functions inherited from QPaintDevice
const Q_GUI_EXPORT QX11Info *	qt_x11Info (const QPaintDevice *pd)
	Returns the QX11Info structure for the pd paint device. More...

Detailed Description

Definition at line 93 of file qglpaintdevice_p.h.

Constructors and Destructors

QGLWidgetGLPaintDevice()

QGLWidgetGLPaintDevice::QGLWidgetGLPaintDevice

(

)

Definition at line 155 of file qglpaintdevice.cpp.

{
}

Functions

beginPaint()

void QGLWidgetGLPaintDevice::beginPaint ( )

virtual

Reimplemented from QGLPaintDevice.

Definition at line 169 of file qglpaintdevice.cpp.

{
    QGLPaintDevice::beginPaint();
    if (!glWidget->d_func()->disable_clear_on_painter_begin && glWidget->autoFillBackground()) {
        if (glWidget->testAttribute(Qt::WA_TranslucentBackground))
            glClearColor(0.0, 0.0, 0.0, 0.0);
        else {
            const QColor &c = glWidget->palette().brush(glWidget->backgroundRole()).color();
            float alpha = c.alphaF();
            glClearColor(c.redF() * alpha, c.greenF() * alpha, c.blueF() * alpha, alpha);
        }
        if (context()->d_func()->workaround_needsFullClearOnEveryFrame)
            glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
        else
            glClear(GL_COLOR_BUFFER_BIT);
    }
}

context()

QGLContext * QGLWidgetGLPaintDevice::context ( ) const

virtual

Implements QGLPaintDevice.

Definition at line 200 of file qglpaintdevice.cpp.

{
    return const_cast<QGLContext*>(glWidget->context());
}

endPaint()

void QGLWidgetGLPaintDevice::endPaint ( )

virtual

Reimplemented from QGLPaintDevice.

Definition at line 187 of file qglpaintdevice.cpp.

{
    if (glWidget->autoBufferSwap())
        glWidget->swapBuffers();
    QGLPaintDevice::endPaint();
}

paintEngine()

QPaintEngine * QGLWidgetGLPaintDevice::paintEngine ( ) const

virtual

Implements QPaintDevice.

Definition at line 159 of file qglpaintdevice.cpp.

{
    return glWidget->paintEngine();
}

setWidget()

void QGLWidgetGLPaintDevice::setWidget

(

QGLWidget *

w

)

Definition at line 164 of file qglpaintdevice.cpp.

{
    glWidget = w;
}

size()

QSize QGLWidgetGLPaintDevice::size ( ) const

virtual

Implements QGLPaintDevice.

Definition at line 195 of file qglpaintdevice.cpp.

{
    return glWidget->size();
}

Friends and Related Functions

QGLWidget

friend class QGLWidget

friend

Definition at line 109 of file qglpaintdevice_p.h.

Properties

glWidget

QGLWidget* QGLWidgetGLPaintDevice::glWidget

private

Definition at line 110 of file qglpaintdevice_p.h.

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The documentation for this class was generated from the following files:

• /src/opengl/qglpaintdevice_p.h
• /src/opengl/qglpaintdevice.cpp