QgsMapMouseEvent::QgsMapMouseEvent( QgsMapToolAdvancedDigitizing* mapTool, QgsPoint point,
Qt::MouseButton button, Qt::KeyboardModifiers modifiers,
QEvent::Type eventType, SnappingMode mode )
: QMouseEvent( eventType,
mapToPixelCoordinates( mapTool->canvas(), point ),
mapTool->canvas()->mapToGlobal( mapToPixelCoordinates( mapTool->canvas(), point ) ),
button, button, modifiers )
, mMapPoint( point )
, mOriginalPoint( point )
, mMapTool( mapTool )
, mSnapMatch( QgsPointLocator::Match() )
, mSnappingMode( mode )
{
snapPoint();
}
QgsPoint QgsMapMouseEvent::snapPoint( SnappingMode snappingMode )
{
// Use cached result
if ( mSnappingMode == snappingMode )
return mMapPoint;
mSnappingMode = snappingMode;
if ( snappingMode == NoSnapping )
{
mMapPoint = mOriginalMapPoint;
mPixelPoint = pos();
return mMapPoint;
}
QgsSnappingUtils* snappingUtils = mMapCanvas->snappingUtils();
QgsSnappingUtils::SnapToMapMode canvasMode = snappingUtils->snapToMapMode();
if ( snappingMode == SnapAllLayers )
{
int type;
double tolerance;
QgsTolerance::UnitType unit;
snappingUtils->defaultSettings( type, tolerance, unit );
snappingUtils->setSnapToMapMode( QgsSnappingUtils::SnapAllLayers );
snappingUtils->setDefaultSettings( QgsPointLocator::Vertex | QgsPointLocator::Edge, tolerance, unit );
mSnapMatch = snappingUtils->snapToMap( mMapPoint );
snappingUtils->setSnapToMapMode( canvasMode );
snappingUtils->setDefaultSettings( type, tolerance, unit );
}
else
{
mSnapMatch = snappingUtils->snapToMap( mMapPoint );
}
if ( mSnapMatch.isValid() )
{
mMapPoint = mSnapMatch.point();
mPixelPoint = mapToPixelCoordinates( mMapPoint );
}
else
{
mMapPoint = mOriginalMapPoint;
mPixelPoint = pos();
}
return mMapPoint;
}
void QgsMapMouseEvent::setMapPoint( const QgsPoint& point )
{
mMapPoint = point;
mPixelPoint = mapToPixelCoordinates( point );
}
