void QgsMapToolMoveLabel::canvasPressEvent( QgsMapMouseEvent* e )
{
deleteRubberBands();
if ( !labelAtPosition( e, mCurrentLabelPos ) )
{
return;
}
QgsMapLayer* layer = QgsMapLayerRegistry::instance()->mapLayer( mCurrentLabelPos.layerID );
if ( !layer || !layer->isEditable() )
{
return;
}
int xCol, yCol;
if ( labelMoveable( layer, xCol, yCol ) || diagramMoveable( layer, xCol, yCol ) )
{
mStartPointMapCoords = toMapCoordinates( e->pos() );
QgsPoint referencePoint;
if ( !rotationPoint( referencePoint, !preserveRotation(), false ) )
{
referencePoint.setX( mCurrentLabelPos.labelRect.xMinimum() );
referencePoint.setY( mCurrentLabelPos.labelRect.yMinimum() );
}
mClickOffsetX = mStartPointMapCoords.x() - referencePoint.x();
mClickOffsetY = mStartPointMapCoords.y() - referencePoint.y();
createRubberBands();
}
}
bool QgsMapToolLabel::dataDefinedPosition( QgsVectorLayer* vlayer, const QgsFeatureId &featureId, double& x, bool& xSuccess, double& y, bool& ySuccess, int& xCol, int& yCol ) const
{
xSuccess = false;
ySuccess = false;
if ( !vlayer )
{
return false;
}
if ( mCurrentLabelPos.isDiagram )
{
if ( !diagramMoveable( vlayer, xCol, yCol ) )
{
return false;
}
}
else if ( !labelMoveable( vlayer, xCol, yCol ) )
{
return false;
}
QgsFeature f;
if ( !vlayer->getFeatures( QgsFeatureRequest().setFilterFid( featureId ).setFlags( QgsFeatureRequest::NoGeometry ) ).nextFeature( f ) )
{
return false;
}
const QgsAttributes& attributes = f.attributes();
x = attributes[xCol].toDouble( &xSuccess );
y = attributes[yCol].toDouble( &ySuccess );
return true;
}
void QgsMapToolMoveLabel::canvasPressEvent( QgsMapMouseEvent* e )
{
deleteRubberBands();
QgsLabelPosition labelPos;
if ( !labelAtPosition( e, labelPos ) )
{
mCurrentLabel = LabelDetails();
return;
}
mCurrentLabel = LabelDetails( labelPos );
QgsVectorLayer* vlayer = mCurrentLabel.layer;
if ( !vlayer || !vlayer->isEditable() )
{
return;
}
int xCol, yCol;
if ( labelMoveable( vlayer, mCurrentLabel.settings, xCol, yCol ) ||
diagramMoveable( vlayer, xCol, yCol ) )
{
mStartPointMapCoords = toMapCoordinates( e->pos() );
QgsPoint referencePoint;
if ( !currentLabelRotationPoint( referencePoint, !currentLabelPreserveRotation(), false ) )
{
referencePoint.setX( mCurrentLabel.pos.labelRect.xMinimum() );
referencePoint.setY( mCurrentLabel.pos.labelRect.yMinimum() );
}
mClickOffsetX = mStartPointMapCoords.x() - referencePoint.x();
mClickOffsetY = mStartPointMapCoords.y() - referencePoint.y();
createRubberBands();
}
}
bool QgsMapToolLabel::dataDefinedPosition( QgsVectorLayer* vlayer, int featureId, double& x, bool& xSuccess, double& y, bool& ySuccess, int& xCol, int& yCol ) const
{
xSuccess = false;
ySuccess = false;
if ( !vlayer )
{
return false;
}
if ( mCurrentLabelPos.isDiagram )
{
if ( !diagramMoveable( vlayer, xCol, yCol ) )
{
return false;
}
}
else if ( !labelMoveable( vlayer, xCol, yCol ) )
{
return false;
}
QgsFeature f;
if ( !vlayer->featureAtId( featureId, f, false, true ) )
{
return false;
}
QgsAttributeMap attributes = f.attributeMap();
x = attributes[xCol].toDouble( &xSuccess );
y = attributes[yCol].toDouble( &ySuccess );
return true;
}
bool QgsMapToolLabel::labelMoveable( QgsVectorLayer *vlayer, int &xCol, int &yCol ) const
{
if ( !vlayer || !vlayer->isEditable() || !vlayer->labelsEnabled() )
{
return false;
}
Q_FOREACH ( const QString &providerId, vlayer->labeling()->subProviders() )
{
if ( labelMoveable( vlayer, vlayer->labeling()->settings( providerId ), xCol, yCol ) )
return true;
}
return false;
}
bool QgsMapToolLabel::currentLabelDataDefinedPosition( double &x, bool &xSuccess, double &y, bool &ySuccess, int &xCol, int &yCol ) const
{
QgsVectorLayer *vlayer = mCurrentLabel.layer;
QgsFeatureId featureId = mCurrentLabel.pos.featureId;
xSuccess = false;
ySuccess = false;
if ( !vlayer )
{
return false;
}
if ( mCurrentLabel.pos.isDiagram )
{
if ( !diagramMoveable( vlayer, xCol, yCol ) )
{
return false;
}
}
else if ( !labelMoveable( vlayer, mCurrentLabel.settings, xCol, yCol ) )
{
return false;
}
QgsFeature f;
if ( !vlayer->getFeatures( QgsFeatureRequest().setFilterFid( featureId ).setFlags( QgsFeatureRequest::NoGeometry ) ).nextFeature( f ) )
{
return false;
}
QgsAttributes attributes = f.attributes();
if ( !attributes.at( xCol ).isNull() )
x = attributes.at( xCol ).toDouble( &xSuccess );
if ( !attributes.at( yCol ).isNull() )
y = attributes.at( yCol ).toDouble( &ySuccess );
return true;
}
bool QgsMapToolLabel::layerCanPin( QgsMapLayer* ml, int& xCol, int& yCol ) const
{
// currently same as QgsMapToolLabel::labelMoveable, but may change
bool canPin = labelMoveable( ml, xCol, yCol );
return canPin;
}
void QgsMapToolMoveLabel::canvasPressEvent( QgsMapMouseEvent *e )
{
deleteRubberBands();
QgsLabelPosition labelPos;
if ( !labelAtPosition( e, labelPos ) )
{
mCurrentLabel = LabelDetails();
return;
}
mCurrentLabel = LabelDetails( labelPos );
QgsVectorLayer *vlayer = mCurrentLabel.layer;
if ( !vlayer )
{
return;
}
int xCol = -1, yCol = -1;
if ( !mCurrentLabel.pos.isDiagram && !labelMoveable( vlayer, mCurrentLabel.settings, xCol, yCol ) )
{
QgsPalIndexes indexes;
if ( createAuxiliaryFields( indexes ) )
return;
if ( !labelMoveable( vlayer, mCurrentLabel.settings, xCol, yCol ) )
return;
xCol = indexes[ QgsPalLayerSettings::PositionX ];
yCol = indexes[ QgsPalLayerSettings::PositionY ];
}
else if ( mCurrentLabel.pos.isDiagram && !diagramMoveable( vlayer, xCol, yCol ) )
{
QgsDiagramIndexes indexes;
if ( createAuxiliaryFields( indexes ) )
return;
if ( !diagramMoveable( vlayer, xCol, yCol ) )
return;
xCol = indexes[ QgsDiagramLayerSettings::PositionX ];
yCol = indexes[ QgsDiagramLayerSettings::PositionY ];
}
if ( xCol >= 0 && yCol >= 0 )
{
mStartPointMapCoords = toMapCoordinates( e->pos() );
QgsPointXY referencePoint;
if ( !currentLabelRotationPoint( referencePoint, !currentLabelPreserveRotation(), false ) )
{
referencePoint.setX( mCurrentLabel.pos.labelRect.xMinimum() );
referencePoint.setY( mCurrentLabel.pos.labelRect.yMinimum() );
}
mClickOffsetX = mStartPointMapCoords.x() - referencePoint.x();
mClickOffsetY = mStartPointMapCoords.y() - referencePoint.y();
createRubberBands();
}
}
