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.constGeometry()->vertexIdFromVertexNr( snapResult.snappedVertexNr, vid ) )
{
continue;
}
// Add rubberband if not already added
if ( !mMoveRubberBands.contains( snapFeatureId ) )
{
QgsGeometryRubberBand* rb = new QgsGeometryRubberBand( mCanvas, feature.constGeometry()->type() );
QSettings settings;
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", 30 ).toInt() / 255.0 ;
color.setAlphaF( myAlpha );
rb->setOutlineColor( color );
rb->setBrushStyle( Qt::NoBrush );
rb->setOutlineWidth( settings.value( "/qgis/digitizing/line_width", 1 ).toInt() );
QgsAbstractGeometryV2* rbGeom = feature.constGeometry()->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.constGeometry()->geometry()->vertexAt( vid ) ) ) );
}
}
void QgsGeometryRubberBand::paint( QPainter* painter )
{
if ( !mGeometry || !painter )
{
return;
}
painter->save();
painter->translate( -pos() );
if ( mGeometryType == QGis::Polygon )
{
painter->setBrush( mBrush );
}
else
{
painter->setBrush( Qt::NoBrush );
}
painter->setPen( mPen );
QgsAbstractGeometryV2* paintGeom = mGeometry->clone();
paintGeom->transform( mMapCanvas->getCoordinateTransform()->transform() );
paintGeom->draw( *painter );
//draw vertices
QgsVertexId vertexId;
QgsPointV2 vertex;
while ( paintGeom->nextVertex( vertexId, vertex ) )
{
drawVertex( painter, vertex.x(), vertex.y() );
}
delete paintGeom;
painter->restore();
}