void testLayerUpdates()
{
QgsPointLocator loc( mVL );
QgsPointLocator::Match mAddV0 = loc.nearestVertex( QgsPointXY( 12, 12 ), 999 );
QVERIFY( mAddV0.isValid() );
QCOMPARE( mAddV0.point(), QgsPointXY( 1, 1 ) );
mVL->startEditing();
// add a new feature
QgsFeature ff( 0 );
QgsPolygon polygon;
QgsPolyline polyline;
polyline << QgsPointXY( 10, 11 ) << QgsPointXY( 11, 10 ) << QgsPointXY( 11, 11 ) << QgsPointXY( 10, 11 );
polygon << polyline;
QgsGeometry ffGeom = QgsGeometry::fromPolygon( polygon ) ;
ff.setGeometry( ffGeom );
QgsFeatureList flist;
flist << ff;
bool resA = mVL->addFeature( ff );
QVERIFY( resA );
// verify it is added in the point locator
QgsPointLocator::Match mAddV = loc.nearestVertex( QgsPointXY( 12, 12 ), 999 );
QVERIFY( mAddV.isValid() );
QCOMPARE( mAddV.point(), QgsPointXY( 11, 11 ) );
QgsPointLocator::Match mAddE = loc.nearestEdge( QgsPointXY( 11.1, 10.5 ), 999 );
QVERIFY( mAddE.isValid() );
QCOMPARE( mAddE.point(), QgsPointXY( 11, 10.5 ) );
QgsPointLocator::MatchList mAddA = loc.pointInPolygon( QgsPointXY( 10.8, 10.8 ) );
QVERIFY( mAddA.count() == 1 );
// change geometry
QgsGeometry *newGeom = new QgsGeometry( ff.geometry() );
newGeom->moveVertex( 10, 10, 2 ); // change 11,11 to 10,10
mVL->changeGeometry( ff.id(), *newGeom );
delete newGeom;
// verify it is changed in the point locator
QgsPointLocator::Match mChV = loc.nearestVertex( QgsPointXY( 12, 12 ), 999 );
QVERIFY( mChV.isValid() );
QVERIFY( mChV.point() != QgsPointXY( 11, 11 ) ); // that point does not exist anymore
mChV = loc.nearestVertex( QgsPointXY( 9, 9 ), 999 );
QVERIFY( mChV.isValid() );
QVERIFY( mChV.point() == QgsPointXY( 10, 10 ) ); // updated point
// delete feature
bool resD = mVL->deleteFeature( ff.id() );
QVERIFY( resD );
// verify it is deleted from the point locator
QgsPointLocator::Match mDelV = loc.nearestVertex( QgsPointXY( 12, 12 ), 999 );
QVERIFY( mDelV.isValid() );
QCOMPARE( mDelV.point(), QgsPointXY( 1, 1 ) );
mVL->rollBack();
}
bool QgsVectorLayerEditUtils::moveVertex( double x, double y, QgsFeatureId atFeatureId, int atVertex )
{
if ( !L->hasGeometryType() )
return false;
QgsGeometry geometry;
if ( !cache()->geometry( atFeatureId, geometry ) )
return false; // TODO: support also uncached geometries
geometry.moveVertex( x, y, atVertex );
L->editBuffer()->changeGeometry( atFeatureId, &geometry );
return true;
}
bool QgsVectorLayerEditUtils::moveVertex( const QgsPoint &p, QgsFeatureId atFeatureId, int atVertex )
{
if ( !mLayer->isSpatial() )
return false;
QgsFeature f;
if ( !mLayer->getFeatures( QgsFeatureRequest().setFilterFid( atFeatureId ).setSubsetOfAttributes( QgsAttributeList() ) ).nextFeature( f ) || !f.hasGeometry() )
return false; // geometry not found
QgsGeometry geometry = f.geometry();
geometry.moveVertex( p, atVertex );
mLayer->editBuffer()->changeGeometry( atFeatureId, geometry );
return true;
}
bool QgsVectorLayerEditUtils::moveVertex( const QgsPointV2& p, QgsFeatureId atFeatureId, int atVertex )
{
if ( !L->hasGeometryType() )
return false;
QgsGeometry geometry;
if ( !cache()->geometry( atFeatureId, geometry ) )
{
// it's not in cache: let's fetch it from layer
QgsFeature f;
if ( !L->getFeatures( QgsFeatureRequest().setFilterFid( atFeatureId ).setSubsetOfAttributes( QgsAttributeList() ) ).nextFeature( f ) || !f.constGeometry() )
return false; // geometry not found
geometry = *f.constGeometry();
}
geometry.moveVertex( p, atVertex );
L->editBuffer()->changeGeometry( atFeatureId, &geometry );
return true;
}