/*!
Repaint the knob
\param event Paint event
*/
void QwtKnob::paintEvent( QPaintEvent *event )
{
const QRectF knobRect = this->knobRect();
QPainter painter( this );
painter.setClipRegion( event->region() );
QStyleOption opt;
opt.init(this);
style()->drawPrimitive(QStyle::PE_Widget, &opt, &painter, this);
painter.setRenderHint( QPainter::Antialiasing, true );
if ( !knobRect.contains( event->region().boundingRect() ) )
{
scaleDraw()->setRadius( 0.5 * knobRect.width() + d_data->scaleDist );
scaleDraw()->moveCenter( knobRect.center() );
scaleDraw()->draw( &painter, palette() );
}
drawKnob( &painter, knobRect );
drawMarker( &painter, knobRect,
qwtNormalizeDegrees( scaleMap().transform( value() ) ) );
painter.setRenderHint( QPainter::Antialiasing, false );
if ( hasFocus() )
drawFocusIndicator( &painter );
}
//! Redraw the canvas, and focus rect
void QwtPlotCanvas::drawContents(QPainter *painter)
{
if ( cacheMode() && d_cache
&& d_cache->size() == contentsRect().size() )
{
painter->drawPixmap(contentsRect().topLeft(), *d_cache);
}
else
drawCanvas(painter);
#ifndef QWT_NO_COMPAT
if ( d_outlineActive )
drawOutline(*painter); // redraw outline
#endif
if ( hasFocus() && focusIndicator() == CanvasFocusIndicator )
{
const int margin = 1;
QRect focusRect = contentsRect();
focusRect.setRect(focusRect.x() + margin, focusRect.y() + margin,
focusRect.width() - 2 * margin, focusRect.height() - 2 * margin);
drawFocusIndicator(painter, focusRect);
}
}
//! Repaint the dial
void QwtDial::paintEvent(QPaintEvent *e)
{
const QRect &ur = e->rect();
if ( ur.isValid() )
{
QwtPaintBuffer paintBuffer(this, ur);
QPainter *painter = paintBuffer.painter();
drawContents(painter);
drawFrame(painter);
if ( hasFocus() )
drawFocusIndicator(painter);
}
}
/*!
Redraw the canvas, and focus rect
\param painter Painter
*/
void QwtPlotCanvas::drawContents( QPainter *painter )
{
if ( d_data->paintAttributes & PaintCached && d_data->cache
&& d_data->cache->size() == contentsRect().size() )
{
painter->drawPixmap( contentsRect().topLeft(), *d_data->cache );
}
else
{
QwtPlot *plot = ( ( QwtPlot * )parent() );
const bool doAutoReplot = plot->autoReplot();
plot->setAutoReplot( false );
drawCanvas( painter );
plot->setAutoReplot( doAutoReplot );
}
if ( hasFocus() && focusIndicator() == CanvasFocusIndicator )
drawFocusIndicator( painter );
}
/*!
Paint the dial
\param event Paint event
*/
void QwtDial::paintEvent( QPaintEvent *event )
{
QPainter painter( this );
painter.setClipRegion( event->region() );
QStyleOption opt;
opt.init(this);
style()->drawPrimitive(QStyle::PE_Widget, &opt, &painter, this);
painter.setRenderHint( QPainter::Antialiasing, true );
painter.save();
drawContents( &painter );
painter.restore();
painter.save();
drawFrame( &painter );
painter.restore();
if ( hasFocus() )
drawFocusIndicator( &painter );
}
/*!
Paint event
\param event Paint event
*/
void QwtPlotCanvas::paintEvent( QPaintEvent *event )
{
QPainter painter( this );
painter.setClipRegion( event->region() );
if ( testPaintAttribute( QwtPlotCanvas::BackingStore ) &&
d_data->backingStore != NULL )
{
QPixmap &bs = *d_data->backingStore;
if ( bs.size() != size() )
{
bs = QPixmap( size() );
#ifdef Q_WS_X11
if ( bs.x11Info().screen() != x11Info().screen() )
bs.x11SetScreen( x11Info().screen() );
#endif
if ( testAttribute(Qt::WA_StyledBackground) )
{
QPainter p( &bs );
qwtFillBackground( &p, this );
drawCanvas( &p, true );
}
else
{
QPainter p;
if ( d_data->borderRadius <= 0.0 )
{
qwtFillPixmap( this, bs );
p.begin( &bs );
drawCanvas( &p, false );
}
else
{
p.begin( &bs );
qwtFillBackground( &p, this );
drawCanvas( &p, true );
}
if ( frameWidth() > 0 )
drawBorder( &p );
}
}
painter.drawPixmap( 0, 0, *d_data->backingStore );
}
else
{
if ( testAttribute(Qt::WA_StyledBackground ) )
{
if ( testAttribute( Qt::WA_OpaquePaintEvent ) )
{
qwtFillBackground( &painter, this );
drawCanvas( &painter, true );
}
else
{
drawCanvas( &painter, false );
}
}
else
{
if ( testAttribute( Qt::WA_OpaquePaintEvent ) )
{
if ( autoFillBackground() )
{
qwtFillBackground( &painter, this );
qwtDrawBackground( &painter, this );
}
}
else
{
if ( borderRadius() > 0.0 )
{
QPainterPath clipPath;
clipPath.addRect( rect() );
clipPath = clipPath.subtracted( borderPath( rect() ) );
painter.save();
painter.setClipPath( clipPath, Qt::IntersectClip );
qwtFillBackground( &painter, this );
qwtDrawBackground( &painter, this );
painter.restore();
}
}
drawCanvas( &painter, false );
if ( frameWidth() > 0 )
drawBorder( &painter );
}
}
if ( hasFocus() && focusIndicator() == CanvasFocusIndicator )
drawFocusIndicator( &painter );
}
/*!
Paint event
\param event Paint event
*/
void QwtPlotCanvas::paintEvent( QPaintEvent *event )
{
QPainter painter( this );
painter.setClipRegion( event->region() );
if ( testPaintAttribute( QwtPlotCanvas::BackingStore ) &&
d_data->backingStore != NULL )
{
QPixmap &bs = *d_data->backingStore;
if ( bs.size() != size() )
{
bs = QPixmap( size() );
#ifdef Q_WS_X11
if ( bs.x11Info().screen() != x11Info().screen() )
bs.x11SetScreen( x11Info().screen() );
#endif
if ( testAttribute(Qt::WA_StyledBackground) )
{
QPainter p( &bs );
qwtFillBackground( &p, this );
drawCanvas( &p, true );
}
else
{
QPainter p;
if ( d_data->borderRadius <= 0.0 )
{
#if QT_VERSION >= 0x050000
QwtPainter::fillPixmap( this, bs );
#else
bs.fill( this, 0, 0 );
#endif
p.begin( &bs );
drawCanvas( &p, false );
}
else
{
p.begin( &bs );
qwtFillBackground( &p, this );
drawCanvas( &p, true );
}
if ( frameWidth() > 0 )
drawBorder( &p );
}
}
painter.drawPixmap( 0, 0, *d_data->backingStore );
}
else
{
if ( testAttribute(Qt::WA_StyledBackground ) )
{
if ( testAttribute( Qt::WA_OpaquePaintEvent ) )
{
qwtFillBackground( &painter, this );
drawCanvas( &painter, true );
}
else
{
drawCanvas( &painter, false );
}
}
else
{
if ( testAttribute( Qt::WA_OpaquePaintEvent ) )
{
if ( autoFillBackground() )
qwtDrawBackground( &painter, this );
}
drawCanvas( &painter, false );
if ( frameWidth() > 0 )
drawBorder( &painter );
}
}
if ( hasFocus() && focusIndicator() == CanvasFocusIndicator )
drawFocusIndicator( &painter );
}
void QwtPlotGLCanvas::paintGL()
{
const bool hasFocusIndicator =
hasFocus() && focusIndicator() == CanvasFocusIndicator;
QPainter painter;
#if QT_VERSION < 0x040600
painter.begin( this );
draw( &painter );
#else
if ( testPaintAttribute( QwtPlotGLCanvas::BackingStore ) )
{
if ( d_data->fbo == NULL || d_data->fbo->size() != size() )
{
invalidateBackingStore();
const int numSamples = 16;
QGLFramebufferObjectFormat format;
format.setSamples( numSamples );
format.setAttachment(QGLFramebufferObject::CombinedDepthStencil);
QGLFramebufferObject fbo( size(), format );
QPainter fboPainter( &fbo );
draw( &fboPainter);
fboPainter.end();
d_data->fbo = new QGLFramebufferObject( size() );
QRect rect(0, 0, width(), height());
QGLFramebufferObject::blitFramebuffer(d_data->fbo, rect, &fbo, rect);
}
// drawTexture( QRectF( -1.0, 1.0, 2.0, -2.0 ), d_data->fbo->texture() );
if ( hasFocusIndicator )
painter.begin( this );
glBindTexture(GL_TEXTURE_2D, d_data->fbo->texture());
glEnable(GL_TEXTURE_2D);
glBegin(GL_QUADS);
glTexCoord2f(0.0f, 0.0f);
glVertex2f(-1.0f, -1.0f);
glTexCoord2f(1.0f, 0.0f);
glVertex2f( 1.0f, -1.0f);
glTexCoord2f(1.0f, 1.0f);
glVertex2f( 1.0f, 1.0f);
glTexCoord2f(0.0f, 1.0f);
glVertex2f(-1.0f, 1.0f);
glEnd();
}
else
{
painter.begin( this );
draw( &painter );
}
#endif
if ( hasFocus() && focusIndicator() == CanvasFocusIndicator )
drawFocusIndicator( &painter );
}
