void QgsMapToolNodeTool::canvasMoveEvent( QMouseEvent * e )
{
  if ( !mSelectedFeature || e->buttons() == Qt::NoButton )
    return;

  QgsVectorLayer* vlayer = mSelectedFeature->vlayer();
  Q_ASSERT( vlayer );

  mSelectAnother = false;

  if ( mMoving )
  {
    if ( mMoveRubberBands.empty() )
    {
      QgsGeometryRubberBand* rb = new QgsGeometryRubberBand( mCanvas, mSelectedFeature->geometry()->type() );
      rb->setOutlineColor( Qt::blue );
      rb->setBrushStyle( Qt::NoBrush );
      rb->setOutlineWidth( 2 );
      QgsAbstractGeometryV2* rbGeom = mSelectedFeature->geometry()->geometry()->clone();
      if ( mCanvas->mapSettings().layerTransform( vlayer ) )
        rbGeom->transform( *mCanvas->mapSettings().layerTransform( vlayer ) );
      rb->setGeometry( rbGeom );
      mMoveRubberBands.insert( mSelectedFeature->featureId(), rb );
      foreach ( const QgsVertexEntry* vertexEntry, mSelectedFeature->vertexMap() )
      {
        if ( vertexEntry->isSelected() )
          mMoveVertices[mSelectedFeature->featureId()].append( qMakePair( vertexEntry->vertexId(), toMapCoordinates( vlayer, vertexEntry->point() ) ) );
      }
      if ( QgsProject::instance()->readNumEntry( "Digitizing", "/TopologicalEditing", 0 ) )
      {
        createTopologyRubberBands();
      }
    }
    else
    {
void QgsMapToolNodeTool::createTopologyRubberBands()
{
  QgsVectorLayer* vlayer = mSelectedFeature->vlayer();

  Q_FOREACH ( const QgsVertexEntry* vertexEntry, mSelectedFeature->vertexMap() )
  {
    if ( !vertexEntry->isSelected() )
    {
      continue;
    }

    // Snap vertex
    QMultiMap<double, QgsSnappingResult> snapResults;
    vlayer->snapWithContext( vertexEntry->pointV1(), ZERO_TOLERANCE, snapResults, QgsSnapper::SnapToVertex );
    Q_FOREACH ( const QgsSnappingResult& snapResult, snapResults )
    {
      // Get geometry of snapped feature
      QgsFeatureId snapFeatureId = snapResult.snappedAtGeometry;
      QgsFeature feature;
      if ( !vlayer->getFeatures( QgsFeatureRequest( snapFeatureId ).setSubsetOfAttributes( QgsAttributeList() ) ).nextFeature( feature ) )
      {
        continue;
      }
      // Get VertexId of snapped vertex
      QgsVertexId vid;
      if ( !feature.geometry().vertexIdFromVertexNr( snapResult.snappedVertexNr, vid ) )
      {
        continue;
      }
      // Add rubberband if not already added
      if ( !mMoveRubberBands.contains( snapFeatureId ) )
      {
        QgsGeometryRubberBand* rb = new QgsGeometryRubberBand( mCanvas, feature.geometry().type() );
        QSettings settings;
        QColor color(
          settings.value( QStringLiteral( "/qgis/digitizing/line_color_red" ), 255 ).toInt(),
          settings.value( QStringLiteral( "/qgis/digitizing/line_color_green" ), 0 ).toInt(),
          settings.value( QStringLiteral( "/qgis/digitizing/line_color_blue" ), 0 ).toInt() );
        double myAlpha = settings.value( QStringLiteral( "/qgis/digitizing/line_color_alpha" ), 30 ).toInt() / 255.0 ;
        color.setAlphaF( myAlpha );
        rb->setOutlineColor( color );
        rb->setBrushStyle( Qt::NoBrush );
        rb->setOutlineWidth( settings.value( QStringLiteral( "/qgis/digitizing/line_width" ), 1 ).toInt() );
        QgsAbstractGeometry* rbGeom = feature.geometry().geometry()->clone();
        if ( mCanvas->mapSettings().layerTransform( vlayer ).isValid() )
          rbGeom->transform( mCanvas->mapSettings().layerTransform( vlayer ) );
        rb->setGeometry( rbGeom );
        mMoveRubberBands.insert( snapFeatureId, rb );
      }
      // Add to list of vertices to be moved
      mMoveVertices[snapFeatureId].append( qMakePair( vid, toMapCoordinates( vlayer, feature.geometry().geometry()->vertexAt( vid ) ) ) );
    }
  }
void QgsMapToolNodeTool::createTopologyRubberBands()
{
  QgsVectorLayer* vlayer = mSelectedFeature->vlayer();

  foreach ( const QgsVertexEntry* vertexEntry, mSelectedFeature->vertexMap() )
  {
    if ( !vertexEntry->isSelected() )
    {
      continue;
    }

    // Snap vertex
    QMultiMap<double, QgsSnappingResult> snapResults;
    vlayer->snapWithContext( vertexEntry->pointV1(), ZERO_TOLERANCE, snapResults, QgsSnapper::SnapToVertex );
    foreach ( const QgsSnappingResult& snapResult, snapResults.values() )
    {
      // Get geometry of snapped feature
      QgsFeatureId snapFeatureId = snapResult.snappedAtGeometry;
      QgsFeature feature;
      if ( !vlayer->getFeatures( QgsFeatureRequest( snapFeatureId ).setSubsetOfAttributes( QgsAttributeList() ) ).nextFeature( feature ) )
      {
        continue;
      }

      // Get VertexId of snapped vertex
      QgsVertexId vid;
      if ( !feature.geometry()->vertexIdFromVertexNr( snapResult.snappedVertexNr, vid ) )
      {
        continue;
      }
      // Add rubberband if not already added
      if ( !mMoveRubberBands.contains( snapFeatureId ) )
      {
        QgsGeometryRubberBand* rb = new QgsGeometryRubberBand( mCanvas, feature.geometry()->type() );
        rb->setOutlineColor( Qt::blue );
        rb->setBrushStyle( Qt::NoBrush );
        rb->setOutlineWidth( 2 );
        QgsAbstractGeometryV2* rbGeom = feature.geometry()->geometry()->clone();
        if ( mCanvas->mapSettings().layerTransform( vlayer ) )
          rbGeom->transform( *mCanvas->mapSettings().layerTransform( vlayer ) );
        rb->setGeometry( rbGeom );
        mMoveRubberBands.insert( snapFeatureId, rb );
      }
      // Add to list of vertices to be moved
      mMoveVertices[snapFeatureId].append( qMakePair( vid, toMapCoordinates( vlayer, feature.geometry()->geometry()->vertexAt( vid ) ) ) );
    }
  }
}
Beispiel #4
0
QgsGeometryRubberBand* QgsMapToolEdit::createGeometryRubberBand( QGis::GeometryType geometryType, bool alternativeBand ) const
{
  QSettings settings;
  QgsGeometryRubberBand* rb = new QgsGeometryRubberBand( mCanvas, geometryType );
  QColor color( settings.value( "/qgis/digitizing/line_color_red", 255 ).toInt(),
                settings.value( "/qgis/digitizing/line_color_green", 0 ).toInt(),
                settings.value( "/qgis/digitizing/line_color_blue", 0 ).toInt() );
  double myAlpha = settings.value( "/qgis/digitizing/line_color_alpha", 200 ).toInt() / 255.0 ;
  if ( alternativeBand )
  {
    myAlpha = myAlpha * settings.value( "/qgis/digitizing/line_color_alpha_scale", 0.75 ).toDouble();
    rb->setLineStyle( Qt::DotLine );
  }
  color.setAlphaF( myAlpha );
  rb->setOutlineColor( color );
  rb->setFillColor( color );
  rb->show();
  return rb;
}