QgsComposition* QgsProjectParser::initComposition( const QString& composerTemplate, QgsMapRenderer* mapRenderer, QList< QgsComposerMap*>& mapList, QList< QgsComposerLabel* >& labelList ) const
{
//Create composition from xml
QDomElement composerElem = composerByName( composerTemplate );
if ( composerElem.isNull() )
{
throw QgsMapServiceException( "Error", "Composer template not found" );
}
QDomElement compositionElem = composerElem.firstChildElement( "Composition" );
if ( compositionElem.isNull() )
{
return 0;
}
QgsComposition* composition = new QgsComposition( mapRenderer ); //set resolution, paper size from composer element attributes
if ( !composition->readXML( compositionElem, *mXMLDoc ) )
{
delete composition;
return 0;
}
//go through all the item elements and add them to the composition (and to the lists)
QDomNodeList itemNodes = composerElem.childNodes();
for ( int i = 0; i < itemNodes.size(); ++i )
{
QDomElement currentElem = itemNodes.at( i ).toElement();
QString elemName = currentElem.tagName();
if ( elemName == "ComposerMap" )
{
QgsComposerMap* map = new QgsComposerMap( composition );
map->readXML( currentElem, *mXMLDoc );
composition->addItem( map );
mapList.push_back( map );
}
else if ( elemName == "ComposerLabel" )
{
QgsComposerLabel* label = new QgsComposerLabel( composition );
label->readXML( currentElem, *mXMLDoc );
composition->addItem( label );
labelList.push_back( label );
}
else if ( elemName == "ComposerLegend" )
{
//legend needs to be loaded indirectly to have generic content
//and to avoid usage of x-server with pixmap icons
//read full legend from xml
QgsComposerLegend* legend = new QgsComposerLegend( composition );
legend->readXML( currentElem, *mXMLDoc );
//dynamic legend (would be interesting in case of layers dynamically defined in SLD)
//legend->_readXML( currentElem.firstChildElement( "ComposerItem" ), *mXMLDoc );
//legend->updateLegend();
composition->addItem( legend );
}
else if ( elemName == "ComposerShape" )
{
QgsComposerShape* shape = new QgsComposerShape( composition );
shape->readXML( currentElem, *mXMLDoc );
composition->addItem( shape );
}
else if ( elemName == "ComposerArrow" )
{
QgsComposerArrow* arrow = new QgsComposerArrow( composition );
arrow->readXML( currentElem, *mXMLDoc );
composition->addItem( arrow );
}
else if ( elemName == "ComposerAttributeTable" )
{
QgsComposerAttributeTable* table = new QgsComposerAttributeTable( composition );
table->readXML( currentElem, *mXMLDoc );
composition->addItem( table );
}
}
//scalebars and pictures need to be loaded after the maps to receive the correct size / rotation
for ( int i = 0; i < itemNodes.size(); ++i )
{
QDomElement currentElem = itemNodes.at( i ).toElement();
QString elemName = currentElem.tagName();
if ( elemName == "ComposerPicture" )
{
QgsComposerPicture* picture = new QgsComposerPicture( composition );
picture->readXML( currentElem, *mXMLDoc );
//qgis mapserver needs an absolute file path
picture->setPictureFile( convertToAbsolutePath( picture->pictureFile() ) );
composition->addItem( picture );
}
else if ( elemName == "ComposerScaleBar" )
{
QgsComposerScaleBar* bar = new QgsComposerScaleBar( composition );
bar->readXML( currentElem, *mXMLDoc );
composition->addItem( bar );
}
}
return composition;
}
