QImage SvgPatternHelper::generateImage( const QRectF &objectBound, const QList<KoShape*> content )
{
KoZoomHandler zoomHandler;
QSizeF patternSize = size( objectBound );
QSizeF tileSize = zoomHandler.documentToView( patternSize );
QMatrix viewMatrix;
if( ! m_patternContentViewbox.isNull() )
{
viewMatrix.translate( -m_patternContentViewbox.x(), -m_patternContentViewbox.y() );
const qreal xScale = patternSize.width() / m_patternContentViewbox.width();
const qreal yScale = patternSize.height() / m_patternContentViewbox.height();
viewMatrix.scale( xScale, yScale );
}
// setup the tile image
QImage tile( tileSize.toSize(), QImage::Format_ARGB32 );
tile.fill( QColor( Qt::transparent ).rgba() );
// setup the painter to paint the tile content
QPainter tilePainter( &tile );
tilePainter.setClipRect( tile.rect() );
tilePainter.setWorldMatrix( viewMatrix );
//tilePainter.setRenderHint(QPainter::Antialiasing);
// paint the content into the tile image
KoShapePainter shapePainter;
shapePainter.setShapes( content );
shapePainter.paintShapes( tilePainter, zoomHandler );
return tile;
}
KoFilter::ConversionStatus
PngExport::convert( const QByteArray& from, const QByteArray& to )
{
if ( to != "image/png" || from != "application/vnd.oasis.opendocument.graphics" )
{
return KoFilter::NotImplemented;
}
KoDocument * document = m_chain->inputDocument();
if( ! document )
return KoFilter::ParsingError;
KarbonPart * karbonPart = dynamic_cast<KarbonPart*>( document );
if( ! karbonPart )
return KoFilter::WrongFormat;
KoShapePainter painter;
painter.setShapes( karbonPart->document().shapes() );
// get the bounding rect of the content
QRectF shapesRect = painter.contentRect();
// get the size on point
QSizeF pointSize = shapesRect.size();
// get the size in pixel (100% zoom)
KoZoomHandler zoomHandler;
QSize pixelSize = zoomHandler.documentToView( pointSize ).toSize();
QColor backgroundColor( Qt::white );
if( ! m_chain->manager()->getBatchMode() )
{
PngExportOptionsWidget * widget = new PngExportOptionsWidget( pointSize );
widget->setUnit( karbonPart->unit() );
widget->setBackgroundColor( backgroundColor );
KDialog dlg;
dlg.setCaption( i18n("PNG Export Options") );
dlg.setButtons( KDialog::Ok | KDialog::Cancel );
dlg.setMainWidget( widget );
if( dlg.exec() != QDialog::Accepted )
return KoFilter::UserCancelled;
pixelSize = widget->pixelSize();
backgroundColor = widget->backgroundColor();
}
QImage image( pixelSize, QImage::Format_ARGB32 );
// draw the background of the image
image.fill( backgroundColor.rgba() );
// paint the shapes
if( ! painter.paintShapes( image ) )
return KoFilter::CreationError;
image.save( m_chain->outputFile(), "PNG" );
return KoFilter::OK;
}