QgsFeatureRendererV2* QgsPointDisplacementRenderer::create( QDomElement& symbologyElem )
{
QgsPointDisplacementRenderer* r = new QgsPointDisplacementRenderer();
r->setLabelAttributeName( symbologyElem.attribute( "labelAttributeName" ) );
QFont labelFont;
labelFont.fromString( symbologyElem.attribute( "labelFont", "" ) );
r->setLabelFont( labelFont );
r->setCircleWidth( symbologyElem.attribute( "circleWidth", "0.4" ).toDouble() );
r->setCircleColor( QgsSymbolLayerV2Utils::decodeColor( symbologyElem.attribute( "circleColor", "" ) ) );
r->setLabelColor( QgsSymbolLayerV2Utils::decodeColor( symbologyElem.attribute( "labelColor", "" ) ) );
r->setCircleRadiusAddition( symbologyElem.attribute( "circleRadiusAddition", "0.0" ).toDouble() );
r->setMaxLabelScaleDenominator( symbologyElem.attribute( "maxLabelScaleDenominator", "-1" ).toDouble() );
//look for an embedded renderer <renderer-v2>
QDomElement embeddedRendererElem = symbologyElem.firstChildElement( "renderer-v2" );
if ( !embeddedRendererElem.isNull() )
{
QString rendererName = embeddedRendererElem.attribute( "type" );
QgsRendererV2AbstractMetadata* metaData = QgsRendererV2Registry::instance()->rendererMetadata( rendererName );
if ( metaData )
{
r->setEmbeddedRenderer( metaData->createRenderer( embeddedRendererElem ) );
}
}
//center symbol
QDomElement centerSymbolElem = symbologyElem.firstChildElement( "symbol" );
if ( !centerSymbolElem.isNull() )
{
r->setCenterSymbol( dynamic_cast<QgsMarkerSymbolV2*>( QgsSymbolLayerV2Utils::loadSymbol( centerSymbolElem ) ) );
}
return r;
}
QgsFeatureRendererV2* QgsFeatureRendererV2::load( QDomElement& element )
{
// <renderer-v2 type=""> ... </renderer-v2>
if ( element.isNull() )
return nullptr;
// load renderer
QString rendererType = element.attribute( "type" );
QgsRendererV2AbstractMetadata* m = QgsRendererV2Registry::instance()->rendererMetadata( rendererType );
if ( !m )
return nullptr;
QgsFeatureRendererV2* r = m->createRenderer( element );
if ( r )
{
r->setUsingSymbolLevels( element.attribute( "symbollevels", "0" ).toInt() );
r->setForceRasterRender( element.attribute( "forceraster", "0" ).toInt() );
//restore layer effect
QDomElement effectElem = element.firstChildElement( "effect" );
if ( !effectElem.isNull() )
{
r->setPaintEffect( QgsPaintEffectRegistry::instance()->createEffect( effectElem ) );
}
// restore order by
QDomElement orderByElem = element.firstChildElement( "orderby" );
r->mOrderBy.load( orderByElem );
r->setOrderByEnabled( element.attribute( "enableorderby", "0" ).toInt() );
}
return r;
}
QgsFeatureRendererV2* QgsGrassEditRenderer::create( QDomElement& element )
{
QgsGrassEditRenderer *renderer = new QgsGrassEditRenderer();
QDomElement childElem = element.firstChildElement();
while ( !childElem.isNull() )
{
QDomElement elem = childElem.firstChildElement();
if ( !elem.isNull() )
{
QString rendererType = elem.attribute( "type" );
QgsDebugMsg( "childElem.tagName() = " + childElem.tagName() + " rendererType = " + rendererType );
QgsRendererV2AbstractMetadata* meta = QgsRendererV2Registry::instance()->rendererMetadata( rendererType );
if ( meta )
{
QgsFeatureRendererV2* subRenderer = meta->createRenderer( elem );
if ( subRenderer )
{
QgsDebugMsg( "renderer created : " + renderer->type() );
if ( childElem.tagName() == "line" )
{
renderer->setLineRenderer( subRenderer );
}
else if ( childElem.tagName() == "marker" )
{
renderer->setMarkerRenderer( subRenderer );
}
}
}
}
childElem = childElem.nextSiblingElement();
}
return renderer;
}
