void MarbleWidget::paintEvent( QPaintEvent *evt )
{
QTime t;
t.start();
QPaintDevice *paintDevice = this;
QImage image;
if (!isEnabled())
{
// If the globe covers fully the screen then we can use the faster
// RGB32 as there are no translucent areas involved.
QImage::Format imageFormat = ( d->map()->viewport()->mapCoversViewport() )
? QImage::Format_RGB32
: QImage::Format_ARGB32_Premultiplied;
// Paint to an intermediate image
image = QImage( rect().size(), imageFormat );
image.fill( Qt::transparent );
paintDevice = ℑ
}
{
// FIXME: Better way to get the GeoPainter
// Create a painter that will do the painting.
GeoPainter geoPainter( paintDevice, d->map()->viewport(), d->map()->mapQuality() );
d->map()->paint( geoPainter, evt->rect() );
}
if ( !isEnabled() )
{
// Draw a grayscale version of the intermediate image
QRgb* pixel = reinterpret_cast<QRgb*>( image.scanLine( 0 ));
for (int i=0; i<image.width()*image.height(); ++i, ++pixel) {
int gray = qGray( *pixel );
*pixel = qRgb( gray, gray, gray );
}
QPainter widgetPainter( this );
widgetPainter.drawImage( rect(), image );
}
if ( d->m_showFrameRate )
{
QPainter painter( this );
FpsLayer fpsPainter( &t );
fpsPainter.paint( &painter );
const qreal fps = 1000.0 / (qreal)( t.elapsed() + 1 );
emit framesPerSecond( fps );
}
}
// Used to be paintEvent()
void MarbleMap::paint( GeoPainter &painter, const QRect &dirtyRect )
{
Q_UNUSED( dirtyRect );
if ( !d->m_model->mapTheme() ) {
mDebug() << "No theme yet!";
d->m_marbleSplashLayer.render( &painter, &d->m_viewport );
return;
}
QTime t;
t.start();
d->m_layerManager.renderLayers( &painter, &d->m_viewport );
if ( d->m_showFrameRate ) {
FpsLayer fpsPainter( &t );
fpsPainter.paint( &painter );
}
const qreal fps = 1000.0 / (qreal)( t.elapsed() );
emit framesPerSecond( fps );
}
