Exemplo n.º 1
0
QgsGrassEditRenderer::QgsGrassEditRenderer()
    : QgsFeatureRendererV2( "grassEdit" )
    , mLineRenderer( 0 )
    , mMarkerRenderer( 0 )
{
  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, "Line" );
  labels.insert( QgsGrassVectorMap::TopoBoundaryError, "Boundary (topological error on both sides)" );
  labels.insert( QgsGrassVectorMap::TopoBoundaryErrorLeft, "Boundary (topological error on the left side)" );
  labels.insert( QgsGrassVectorMap::TopoBoundaryErrorRight, "Boundary (topological error on the right side)" );
  labels.insert( QgsGrassVectorMap::TopoBoundaryOk, "Boundary (correct)" );

  QgsCategoryList categoryList;

  // first/last vertex marker to distinguish vertices from nodes
  QgsMarkerLineSymbolLayerV2 * firstVertexMarkerLine = new QgsMarkerLineSymbolLayerV2( false );
  QgsSimpleMarkerSymbolLayerV2 *markerSymbolLayer = new QgsSimpleMarkerSymbolLayerV2( QgsSimpleMarkerSymbolLayerBase::Cross2, 2 );
  markerSymbolLayer->setColor( QColor( 255, 0, 0 ) );
  markerSymbolLayer->setBorderColor( QColor( 255, 0, 0 ) );
  markerSymbolLayer->setOutlineWidth( 0.5 );
  QgsSymbolLayerV2List markerLayers;
  markerLayers << markerSymbolLayer;
  QgsMarkerSymbolV2 * markerSymbol = new QgsMarkerSymbolV2( markerLayers );
  firstVertexMarkerLine->setSubSymbol( markerSymbol );
  firstVertexMarkerLine->setPlacement( QgsMarkerLineSymbolLayerV2::FirstVertex );
  QgsMarkerLineSymbolLayerV2 * lastVertexMarkerLine = static_cast<QgsMarkerLineSymbolLayerV2 *>( firstVertexMarkerLine->clone() );
  lastVertexMarkerLine->setPlacement( QgsMarkerLineSymbolLayerV2::LastVertex );
  Q_FOREACH ( int value, colors.keys() )
  {
    QgsSymbolV2 * symbol = QgsSymbolV2::defaultSymbol( QGis::Line );
    symbol->setColor( colors.value( value ) );
    symbol->appendSymbolLayer( firstVertexMarkerLine->clone() );
    symbol->appendSymbolLayer( lastVertexMarkerLine->clone() );
    categoryList << QgsRendererCategoryV2( QVariant( value ), symbol, labels.value( value ) );
  }
  delete firstVertexMarkerLine;
  delete lastVertexMarkerLine;
  mLineRenderer = new QgsCategorizedSymbolRendererV2( "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, "Point" );
  labels.insert( QgsGrassVectorMap::TopoCentroidIn, "Centroid in area" );
  labels.insert( QgsGrassVectorMap::TopoCentroidOut, "Centroid outside area" );
  labels.insert( QgsGrassVectorMap::TopoCentroidDupl, "Duplicate centroid" );

  categoryList.clear();

  Q_FOREACH ( int value, colors.keys() )
  {
    QgsSymbolV2 * symbol = QgsSymbolV2::defaultSymbol( QGis::Point );
    symbol->setColor( colors.value( value ) );
    categoryList << QgsRendererCategoryV2( QVariant( value ), symbol, labels.value( value ) );
  }

  mMarkerRenderer = new QgsCategorizedSymbolRendererV2( "topo_symbol", categoryList );
}