QgsMapSaveDialog::QgsMapSaveDialog( QWidget *parent, QgsMapCanvas *mapCanvas, const QList<QgsDecorationItem *> &decorations, const QList< QgsAnnotation *> &annotations, DialogType type )
: QDialog( parent )
, mDialogType( type )
, mMapCanvas( mapCanvas )
, mAnnotations( annotations )
{
setupUi( this );
// Use unrotated visible extent to insure output size and scale matches canvas
QgsMapSettings ms = mMapCanvas->mapSettings();
ms.setRotation( 0 );
mExtent = ms.visibleExtent();
mDpi = ms.outputDpi();
mSize = ms.outputSize();
mResolutionSpinBox->setValue( mDpi );
mExtentGroupBox->setOutputCrs( ms.destinationCrs() );
mExtentGroupBox->setCurrentExtent( mExtent, ms.destinationCrs() );
mExtentGroupBox->setOutputExtentFromCurrent();
mExtentGroupBox->setMapCanvas( mapCanvas );
mScaleWidget->setScale( ms.scale() );
mScaleWidget->setMapCanvas( mMapCanvas );
mScaleWidget->setShowCurrentScaleButton( true );
QString activeDecorations;
Q_FOREACH ( QgsDecorationItem *decoration, decorations )
{
mDecorations << decoration;
if ( activeDecorations.isEmpty() )
activeDecorations = decoration->name().toLower();
else
activeDecorations += QStringLiteral( ", %1" ).arg( decoration->name().toLower() );
}
QImage QgsMapRendererJob::composeImage( const QgsMapSettings& settings, const LayerRenderJobs& jobs )
{
QImage image( settings.outputSize(), settings.outputImageFormat() );
image.fill( settings.backgroundColor().rgb() );
QPainter painter( &image );
for ( LayerRenderJobs::const_iterator it = jobs.constBegin(); it != jobs.constEnd(); ++it )
{
const LayerRenderJob& job = *it;
painter.setCompositionMode( job.blendMode );
Q_ASSERT( job.img != 0 );
painter.drawImage( 0, 0, *job.img );
}
painter.end();
return image;
}
