void QgsMapToolMoveFeature::canvasPressEvent( QgsMapMouseEvent* e )
{
delete mRubberBand;
mRubberBand = nullptr;
QgsVectorLayer* vlayer = currentVectorLayer();
if ( !vlayer )
{
notifyNotVectorLayer();
return;
}
if ( !vlayer->isEditable() )
{
notifyNotEditableLayer();
return;
}
//find first geometry under mouse cursor and store iterator to it
QgsPoint layerCoords = toLayerCoordinates( vlayer, e->pos() );
QSettings settings;
double searchRadius = QgsTolerance::vertexSearchRadius( mCanvas->currentLayer(), mCanvas->mapSettings() );
QgsRectangle selectRect( layerCoords.x() - searchRadius, layerCoords.y() - searchRadius,
layerCoords.x() + searchRadius, layerCoords.y() + searchRadius );
if ( vlayer->selectedFeatureCount() == 0 )
{
QgsFeatureIterator fit = vlayer->getFeatures( QgsFeatureRequest().setFilterRect( selectRect ).setSubsetOfAttributes( QgsAttributeList() ) );
//find the closest feature
QgsGeometry* pointGeometry = QgsGeometry::fromPoint( layerCoords );
if ( !pointGeometry )
{
return;
}
double minDistance = std::numeric_limits<double>::max();
QgsFeature cf;
QgsFeature f;
while ( fit.nextFeature( f ) )
{
if ( f.constGeometry() )
{
double currentDistance = pointGeometry->distance( *f.constGeometry() );
if ( currentDistance < minDistance )
{
minDistance = currentDistance;
cf = f;
}
}
}
delete pointGeometry;
if ( minDistance == std::numeric_limits<double>::max() )
{
return;
}
mMovedFeatures.clear();
mMovedFeatures << cf.id(); //todo: take the closest feature, not the first one...
mRubberBand = createRubberBand( vlayer->geometryType() );
mRubberBand->setToGeometry( cf.constGeometry(), vlayer );
}
else
{
mMovedFeatures = vlayer->selectedFeaturesIds();
mRubberBand = createRubberBand( vlayer->geometryType() );
QgsFeature feat;
QgsFeatureIterator it = vlayer->selectedFeaturesIterator( QgsFeatureRequest().setSubsetOfAttributes( QgsAttributeList() ) );
while ( it.nextFeature( feat ) )
{
mRubberBand->addGeometry( feat.constGeometry(), vlayer );
}
}
mStartPointMapCoords = toMapCoordinates( e->pos() );
mRubberBand->setColor( QColor( 255, 0, 0, 65 ) );
mRubberBand->setWidth( 2 );
mRubberBand->show();
}
void QgsMapToolRotateFeature::canvasReleaseEvent( QgsMapMouseEvent* e )
{
deleteRotationWidget();
if ( !mCanvas )
{
return;
}
QgsVectorLayer* vlayer = currentVectorLayer();
if ( !vlayer )
{
deleteRubberband();
notifyNotVectorLayer();
return;
}
if ( e->button() == Qt::RightButton )
{
deleteRubberband();
mRotationActive = false;
return;
}
// place anchor point on CTRL + click
if ( e->modifiers() & Qt::ControlModifier )
{
if ( !mAnchorPoint )
{
return;
}
mAnchorPoint->setCenter( toMapCoordinates( e->pos() ) );
mStartPointMapCoords = toMapCoordinates( e->pos() );
mStPoint = e->pos();
return;
}
// Initialize rotation if not yet active
if ( !mRotationActive )
{
mRotation = 0;
mRotationOffset = 0;
deleteRubberband();
mInitialPos = e->pos();
if ( !vlayer->isEditable() )
{
notifyNotEditableLayer();
return;
}
QgsPoint layerCoords = toLayerCoordinates( vlayer, e->pos() );
double searchRadius = QgsTolerance::vertexSearchRadius( mCanvas->currentLayer(), mCanvas->mapSettings() );
QgsRectangle selectRect( layerCoords.x() - searchRadius, layerCoords.y() - searchRadius,
layerCoords.x() + searchRadius, layerCoords.y() + searchRadius );
if ( vlayer->selectedFeatureCount() == 0 )
{
QgsFeatureIterator fit = vlayer->getFeatures( QgsFeatureRequest().setFilterRect( selectRect ).setSubsetOfAttributes( QgsAttributeList() ) );
//find the closest feature
QgsGeometry pointGeometry = QgsGeometry::fromPoint( layerCoords );
if ( pointGeometry.isEmpty() )
{
return;
}
double minDistance = std::numeric_limits<double>::max();
QgsFeature cf;
QgsFeature f;
while ( fit.nextFeature( f ) )
{
if ( f.hasGeometry() )
{
double currentDistance = pointGeometry.distance( f.geometry() );
if ( currentDistance < minDistance )
{
minDistance = currentDistance;
cf = f;
}
}
}
if ( minDistance == std::numeric_limits<double>::max() )
{
emit messageEmitted( tr( "Could not find a nearby feature in the current layer." ) );
return;
}
QgsRectangle bound = cf.geometry().boundingBox();
mStartPointMapCoords = toMapCoordinates( vlayer, bound.center() );
if ( !mAnchorPoint )
{
mAnchorPoint = new QgsVertexMarker( mCanvas );
}
mAnchorPoint->setIconType( QgsVertexMarker::ICON_CROSS );
mAnchorPoint->setCenter( mStartPointMapCoords );
mStPoint = toCanvasCoordinates( mStartPointMapCoords );
mRotatedFeatures.clear();
mRotatedFeatures << cf.id(); //todo: take the closest feature, not the first one...
mRubberBand = createRubberBand( vlayer->geometryType() );
mRubberBand->setToGeometry( cf.geometry(), vlayer );
}
else
{
mRotatedFeatures = vlayer->selectedFeaturesIds();
mRubberBand = createRubberBand( vlayer->geometryType() );
QgsFeature feat;
QgsFeatureIterator it = vlayer->selectedFeaturesIterator();
while ( it.nextFeature( feat ) )
{
mRubberBand->addGeometry( feat.geometry(), vlayer );
}
}
mRubberBand->setColor( QColor( 255, 0, 0, 65 ) );
mRubberBand->setWidth( 2 );
mRubberBand->show();
double XDistance = mInitialPos.x() - mAnchorPoint->x();
double YDistance = mInitialPos.y() - mAnchorPoint->y() ;
mRotationOffset = atan2( YDistance, XDistance ) * ( 180 / PI );
createRotationWidget();
if ( e->modifiers() & Qt::ShiftModifier )
{
if ( mRotationWidget )
{
mRotationWidget->setMagnet( 45 );
}
}
mRotationActive = true;
return;
}
applyRotation( mRotation );
}
void QgsMapToolRotateFeature::canvasPressEvent( QMouseEvent * e )
{
mRotation = 0;
if ( mCtrl )
{
return;
}
delete mRubberBand;
mRubberBand = 0;
mInitialPos = e->pos();
QgsVectorLayer* vlayer = currentVectorLayer();
if ( !vlayer )
{
notifyNotVectorLayer();
return;
}
if ( !vlayer->isEditable() )
{
notifyNotEditableLayer();
return;
}
QgsPoint layerCoords = toLayerCoordinates( vlayer, e->pos() );
double searchRadius = QgsTolerance::vertexSearchRadius( mCanvas->currentLayer(), mCanvas->mapSettings() );
QgsRectangle selectRect( layerCoords.x() - searchRadius, layerCoords.y() - searchRadius,
layerCoords.x() + searchRadius, layerCoords.y() + searchRadius );
if ( vlayer->selectedFeatureCount() == 0 )
{
QgsFeatureIterator fit = vlayer->getFeatures( QgsFeatureRequest().setFilterRect( selectRect ).setSubsetOfAttributes( QgsAttributeList() ) );
//find the closest feature
QgsGeometry* pointGeometry = QgsGeometry::fromPoint( layerCoords );
if ( !pointGeometry )
{
return;
}
double minDistance = std::numeric_limits<double>::max();
QgsFeature cf;
QgsFeature f;
while ( fit.nextFeature( f ) )
{
if ( f.geometry() )
{
double currentDistance = pointGeometry->distance( *f.geometry() );
if ( currentDistance < minDistance )
{
minDistance = currentDistance;
cf = f;
}
}
}
delete pointGeometry;
if ( minDistance == std::numeric_limits<double>::max() )
{
return;
}
QgsRectangle bound = cf.geometry()->boundingBox();
mStartPointMapCoords = toMapCoordinates( vlayer, bound.center() );
if ( !mAnchorPoint )
{
mAnchorPoint = new QgsVertexMarker( mCanvas );
}
mAnchorPoint->setIconType( QgsVertexMarker::ICON_CROSS );
mAnchorPoint->setCenter( mStartPointMapCoords );
mStPoint = toCanvasCoordinates( mStartPointMapCoords );
mRotatedFeatures.clear();
mRotatedFeatures << cf.id(); //todo: take the closest feature, not the first one...
mRubberBand = createRubberBand( vlayer->geometryType() );
mRubberBand->setToGeometry( cf.geometry(), vlayer );
}
else
{
mRotatedFeatures = vlayer->selectedFeaturesIds();
mRubberBand = createRubberBand( vlayer->geometryType() );
QgsFeature feat;
QgsFeatureIterator it = vlayer->selectedFeaturesIterator();
while ( it.nextFeature( feat ) )
{
mRubberBand->addGeometry( feat.geometry(), vlayer );
}
}
mRubberBand->setColor( QColor( 255, 0, 0, 65 ) );
mRubberBand->setWidth( 2 );
mRubberBand->show();
double XDistance = mInitialPos.x() - mAnchorPoint->x();
double YDistance = mInitialPos.y() - mAnchorPoint->y() ;
mRotationOffset = atan2( YDistance, XDistance ) * ( 180 / PI );
}