QgsRendererCategory QgsCategorizedSymbolRendererModel::category( const QModelIndex &index )
{
if ( !mRenderer )
{
return QgsRendererCategory();
}
const QgsCategoryList &catList = mRenderer->categories();
int row = index.row();
if ( row >= catList.size() )
{
return QgsRendererCategory();
}
return catList.at( row );
}
static QgsFeatureRenderer* readOldUniqueValueRenderer( const QDomNode& rnode, QgsWkbTypes::GeometryType geomType )
{
QDomNode classnode = rnode.namedItem( "classificationfield" );
QString classificationField = classnode.toElement().text();
// read categories and symbols
QgsCategoryList cats;
QDomNode symbolnode = rnode.namedItem( "symbol" );
while ( !symbolnode.isNull() )
{
QgsSymbol* symbol = readOldSymbol( symbolnode, geomType );
if ( symbol )
{
QgsOldSymbolMeta meta = readSymbolMeta( symbolnode );
QVariant value = QVariant( meta.lowerValue );
QString label = meta.label;
if ( label.isEmpty() )
label = value.toString();
cats.append( QgsRendererCategory( value, symbol, label, true ) );
}
symbolnode = symbolnode.nextSibling();
}
QgsCategorizedSymbolRenderer* r = new QgsCategorizedSymbolRenderer( classificationField, cats );
// source symbol and color ramp are not set (unknown)
return r;
}
QgsGrassEditRenderer::QgsGrassEditRenderer()
: QgsFeatureRenderer( QStringLiteral( "grassEdit" ) )
{
QHash<int, QColor> colors;
//colors.insert( QgsGrassVectorMap::TopoUndefined, QColor( 125, 125, 125 ) );
colors.insert( QgsGrassVectorMap::TopoLine, QColor( Qt::black ) );
colors.insert( QgsGrassVectorMap::TopoBoundaryError, QColor( Qt::red ) );
colors.insert( QgsGrassVectorMap::TopoBoundaryErrorLeft, QColor( 255, 125, 0 ) );
colors.insert( QgsGrassVectorMap::TopoBoundaryErrorRight, QColor( 255, 125, 0 ) );
colors.insert( QgsGrassVectorMap::TopoBoundaryOk, QColor( Qt::green ) );
QHash<int, QString> labels;
//labels.insert( QgsGrassVectorMap::TopoUndefined, "Unknown type" );
labels.insert( QgsGrassVectorMap::TopoLine, QStringLiteral( "Line" ) );
labels.insert( QgsGrassVectorMap::TopoBoundaryError, QStringLiteral( "Boundary (topological error on both sides)" ) );
labels.insert( QgsGrassVectorMap::TopoBoundaryErrorLeft, QStringLiteral( "Boundary (topological error on the left side)" ) );
labels.insert( QgsGrassVectorMap::TopoBoundaryErrorRight, QStringLiteral( "Boundary (topological error on the right side)" ) );
labels.insert( QgsGrassVectorMap::TopoBoundaryOk, QStringLiteral( "Boundary (correct)" ) );
QgsCategoryList categoryList;
// first/last vertex marker to distinguish vertices from nodes
QgsMarkerLineSymbolLayer *firstVertexMarkerLine = new QgsMarkerLineSymbolLayer( false );
QgsSimpleMarkerSymbolLayer *markerSymbolLayer = new QgsSimpleMarkerSymbolLayer( QgsSimpleMarkerSymbolLayerBase::Cross2, 2 );
markerSymbolLayer->setColor( QColor( 255, 0, 0 ) );
markerSymbolLayer->setStrokeColor( QColor( 255, 0, 0 ) );
markerSymbolLayer->setStrokeWidth( 0.5 );
QgsSymbolLayerList markerLayers;
markerLayers << markerSymbolLayer;
QgsMarkerSymbol *markerSymbol = new QgsMarkerSymbol( markerLayers );
firstVertexMarkerLine->setSubSymbol( markerSymbol );
firstVertexMarkerLine->setPlacement( QgsTemplatedLineSymbolLayerBase::FirstVertex );
QgsMarkerLineSymbolLayer *lastVertexMarkerLine = static_cast<QgsMarkerLineSymbolLayer *>( firstVertexMarkerLine->clone() );
lastVertexMarkerLine->setPlacement( QgsTemplatedLineSymbolLayerBase::LastVertex );
Q_FOREACH ( int value, colors.keys() )
{
QgsSymbol *symbol = QgsSymbol::defaultSymbol( QgsWkbTypes::LineGeometry );
symbol->setColor( colors.value( value ) );
symbol->appendSymbolLayer( firstVertexMarkerLine->clone() );
symbol->appendSymbolLayer( lastVertexMarkerLine->clone() );
categoryList << QgsRendererCategory( QVariant( value ), symbol, labels.value( value ) );
}
delete firstVertexMarkerLine;
delete lastVertexMarkerLine;
mLineRenderer = new QgsCategorizedSymbolRenderer( QStringLiteral( "topo_symbol" ), categoryList );
colors.clear();
labels.clear();
colors.insert( QgsGrassVectorMap::TopoPoint, QColor( 0, 255, 255 ) );
colors.insert( QgsGrassVectorMap::TopoCentroidIn, QColor( 0, 255, 0 ) );
colors.insert( QgsGrassVectorMap::TopoCentroidOut, QColor( 255, 0, 0 ) );
colors.insert( QgsGrassVectorMap::TopoCentroidDupl, QColor( 255, 0, 255 ) );
labels.insert( QgsGrassVectorMap::TopoPoint, QStringLiteral( "Point" ) );
labels.insert( QgsGrassVectorMap::TopoCentroidIn, QStringLiteral( "Centroid in area" ) );
labels.insert( QgsGrassVectorMap::TopoCentroidOut, QStringLiteral( "Centroid outside area" ) );
labels.insert( QgsGrassVectorMap::TopoCentroidDupl, QStringLiteral( "Duplicate centroid" ) );
categoryList.clear();
Q_FOREACH ( int value, colors.keys() )
{
QgsSymbol *symbol = QgsSymbol::defaultSymbol( QgsWkbTypes::PointGeometry );
symbol->setColor( colors.value( value ) );
categoryList << QgsRendererCategory( QVariant( value ), symbol, labels.value( value ) );
}
mMarkerRenderer = new QgsCategorizedSymbolRenderer( QStringLiteral( "topo_symbol" ), categoryList );
}