QgsSingleSymbolRenderer::QgsSingleSymbolRenderer( QGis::GeometryType type )
{
  mGeometryType = type;

  //initial setting based on random color
  QgsSymbol* sy = new QgsSymbol( mGeometryType );

  //random fill colors for points and polygons and pen colors for lines
  int red = 1 + ( int )( 255.0 * rand() / ( RAND_MAX + 1.0 ) );
  int green = 1 + ( int )( 255.0 * rand() / ( RAND_MAX + 1.0 ) );
  int blue = 1 + ( int )( 255.0 * rand() / ( RAND_MAX + 1.0 ) );

  if ( type == QGis::Line )
  {
    sy->setColor( QColor( red, green, blue ) );
  }
  else
  {
    sy->setFillColor( QColor( red, green, blue ) );
    sy->setFillStyle( Qt::SolidPattern );
    sy->setColor( QColor( 0, 0, 0 ) );
  }
  mSymbol = sy;
  updateSymbolAttributes();
}
Example #2
0
void QgsGraduatedSymbolRendererWidget::updateSymbolsFromWidget()
{
  QgsSymbolSelectorWidget* dlg = qobject_cast<QgsSymbolSelectorWidget*>( sender() );
  delete mGraduatedSymbol;
  mGraduatedSymbol = dlg->symbol()->clone();

  mSizeUnitWidget->blockSignals( true );
  mSizeUnitWidget->setUnit( mGraduatedSymbol->outputUnit() );
  mSizeUnitWidget->setMapUnitScale( mGraduatedSymbol->mapUnitScale() );
  mSizeUnitWidget->blockSignals( false );

  QItemSelectionModel* m = viewGraduated->selectionModel();
  QModelIndexList selectedIndexes = m->selectedRows( 1 );
  if ( m && !selectedIndexes.isEmpty() )
  {
    Q_FOREACH ( const QModelIndex& idx, selectedIndexes )
    {
      if ( idx.isValid() )
      {
        int rangeIdx = idx.row();
        QgsSymbol* newRangeSymbol = mGraduatedSymbol->clone();
        if ( selectedIndexes.count() > 1 )
        {
          //if updating multiple ranges, retain the existing range colors
          newRangeSymbol->setColor( mRenderer->ranges().at( rangeIdx ).symbol()->color() );
        }
        mRenderer->updateRangeSymbol( rangeIdx, newRangeSymbol );
      }
    }
  }
void QgsGraduatedSymbolRendererWidget::applyChangeToSymbol()
{
  mSizeUnitWidget->blockSignals( true );
  mSizeUnitWidget->setUnit( mGraduatedSymbol->outputUnit() );
  mSizeUnitWidget->setMapUnitScale( mGraduatedSymbol->mapUnitScale() );
  mSizeUnitWidget->blockSignals( false );

  QItemSelectionModel *m = viewGraduated->selectionModel();
  QModelIndexList selectedIndexes = m->selectedRows( 1 );
  if ( m && !selectedIndexes.isEmpty() )
  {
    const auto constSelectedIndexes = selectedIndexes;
    for ( const QModelIndex &idx : constSelectedIndexes )
    {
      if ( idx.isValid() )
      {
        int rangeIdx = idx.row();
        QgsSymbol *newRangeSymbol = mGraduatedSymbol->clone();
        if ( selectedIndexes.count() > 1 )
        {
          //if updating multiple ranges, retain the existing range colors
          newRangeSymbol->setColor( mRenderer->ranges().at( rangeIdx ).symbol()->color() );
        }
        mRenderer->updateRangeSymbol( rangeIdx, newRangeSymbol );
      }
    }
  }
  else
  {
    mRenderer->updateSymbols( mGraduatedSymbol.get() );
  }

  refreshSymbolView();
  emit widgetChanged();
}
void QgsCategorizedSymbolRendererWidget::changeSelectedSymbols()
{
  QList<int> selectedCats = selectedCategories();

  if ( !selectedCats.isEmpty() )
  {
    QgsSymbol *newSymbol = mCategorizedSymbol->clone();
    QgsSymbolSelectorDialog dlg( newSymbol, mStyle, mLayer, this );
    dlg.setContext( context() );
    if ( !dlg.exec() )
    {
      delete newSymbol;
      return;
    }

    Q_FOREACH ( int idx, selectedCats )
    {
      QgsRendererCategory category = mRenderer->categories().value( idx );

      QgsSymbol *newCatSymbol = newSymbol->clone();
      newCatSymbol->setColor( mRenderer->categories()[idx].symbol()->color() );
      mRenderer->updateCategorySymbol( idx, newCatSymbol );
    }
QgsSymbol* QgsSymbologyV2Conversion::symbolV2toV1( QgsSymbolV2* s )
{
  if ( s == NULL || s->symbolLayerCount() == 0 )
    return NULL;

  // we will use only the first symbol layer
  QgsSymbolLayerV2* sl = s->symbolLayer( 0 );

  switch ( sl->type() )
  {
    case QgsSymbolV2::Marker:
    {
      QgsMarkerSymbolLayerV2* msl = static_cast<QgsMarkerSymbolLayerV2*>( sl );
      QgsSymbol* sOld = new QgsSymbol( QGis::Point );
      sOld->setFillColor( sl->color() );
      sOld->setFillStyle( Qt::SolidPattern );
      sOld->setPointSize( msl->size() );
      if ( sl->layerType() == "SimpleMarker" )
      {
        QgsSimpleMarkerSymbolLayerV2* smsl = static_cast<QgsSimpleMarkerSymbolLayerV2*>( sl );
        sOld->setColor( smsl->borderColor() );
        sOld->setNamedPointSymbol( "hard:" + smsl->name() );
      }
      else if ( sl->layerType() == "SvgMarker" )
      {
        QgsSvgMarkerSymbolLayerV2* smsl = static_cast<QgsSvgMarkerSymbolLayerV2*>( sl );
        sOld->setNamedPointSymbol( "svg:" + smsl->path() );
      }
      return sOld;
    }
    break;

    case QgsSymbolV2::Line:
    {
      QgsLineSymbolLayerV2* lsl = static_cast<QgsLineSymbolLayerV2*>( sl );
      QgsSymbol* sOld = new QgsSymbol( QGis::Line );
      sOld->setColor( sl->color() );
      sOld->setLineWidth( lsl->width() );
      if ( sl->layerType() == "SimpleLine" )
      {
        // add specific settings
        QgsSimpleLineSymbolLayerV2* slsl = static_cast<QgsSimpleLineSymbolLayerV2*>( sl );
        sOld->setLineStyle( slsl->penStyle() );
      }
      return sOld;
    }

    case QgsSymbolV2::Fill:
    {
      QgsSymbol* sOld = new QgsSymbol( QGis::Polygon );
      sOld->setFillColor( sl->color() );
      if ( sl->layerType() == "SimpleFill" )
      {
        // add specifc settings
        QgsSimpleFillSymbolLayerV2* sfsl = static_cast<QgsSimpleFillSymbolLayerV2*>( sl );
        sOld->setColor( sfsl->borderColor() );
        sOld->setLineWidth( sfsl->borderWidth() );
        sOld->setLineStyle( sfsl->borderStyle() );
        sOld->setFillStyle( sfsl->brushStyle() );
      }
      return sOld;
    }
  }

  return NULL; // should never get here
}
Example #6
0
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 );
}