void QgsSelectedFeature::moveSelectedVertexes( QgsVector v )
{
int nUpdates = 0;
Q_FOREACH ( QgsVertexEntry *entry, mVertexMap )
{
if ( entry->isSelected() )
nUpdates++;
}
if ( nUpdates == 0 )
return;
mVlayer->beginEditCommand( QObject::tr( "Moved vertices" ) );
int topologicalEditing = QgsProject::instance()->readNumEntry( "Digitizing", "/TopologicalEditing", 0 );
beginGeometryChange();
QMultiMap<double, QgsSnappingResult> currentResultList;
for ( int i = mVertexMap.size() - 1; i > -1 && nUpdates > 0; i-- )
{
QgsVertexEntry *entry = mVertexMap.value( i, nullptr );
if ( !entry || !entry->isSelected() )
continue;
if ( topologicalEditing )
{
// snap from current vertex
currentResultList.clear();
mVlayer->snapWithContext( entry->pointV1(), ZERO_TOLERANCE, currentResultList, QgsSnapper::SnapToVertex );
}
// only last update should trigger the geometry update
// as vertex selection gets lost on the update
if ( --nUpdates == 0 )
endGeometryChange();
QgsPointV2 p = entry->point();
p.setX( p.x() + v.x() );
p.setY( p.y() + v.y() );
mVlayer->moveVertex( p, mFeatureId, i );
if ( topologicalEditing )
{
QMultiMap<double, QgsSnappingResult>::iterator resultIt = currentResultList.begin();
for ( ; resultIt != currentResultList.end(); ++resultIt )
{
// move all other
if ( mFeatureId != resultIt.value().snappedAtGeometry )
mVlayer->moveVertex( p, resultIt.value().snappedAtGeometry, resultIt.value().snappedVertexNr );
}
}
}
if ( nUpdates > 0 )
endGeometryChange();
mVlayer->endEditCommand();
}
void QgsSelectedFeature::deleteSelectedVertexes()
{
int nSelected = 0;
foreach ( QgsVertexEntry *entry, mVertexMap )
{
if ( entry->isSelected() )
nSelected++;
}
if ( nSelected == 0 )
return;
int topologicalEditing = QgsProject::instance()->readNumEntry( "Digitizing", "/TopologicalEditing", 0 );
QMultiMap<double, QgsSnappingResult> currentResultList;
mVlayer->beginEditCommand( QObject::tr( "Deleted vertices" ) );
beginGeometryChange();
int count = 0;
for ( int i = mVertexMap.size() - 1; i > -1; i-- )
{
if ( mVertexMap[i]->isSelected() )
{
if ( mVertexMap[i]->equals() != -1 )
{
// to avoid try to delete some vertex twice
mVertexMap[ mVertexMap[i]->equals()]->setSelected( false );
nSelected--;
}
if ( topologicalEditing )
{
// snap from current vertex
currentResultList.clear();
mVlayer->snapWithContext( mVertexMap[i]->point(), ZERO_TOLERANCE, currentResultList, QgsSnapper::SnapToVertex );
}
// only last update should trigger the geometry update
// as vertex selection gets lost on the update
if ( --nSelected == 0 )
endGeometryChange();
if ( !mVlayer->deleteVertex( mFeatureId, i ) )
{
count = 0;
QgsDebugMsg( QString( "Deleting vertex %1 failed - resetting" ).arg( i ) );
break;
}
count++;
if ( topologicalEditing )
{
QMultiMap<double, QgsSnappingResult>::iterator resultIt = currentResultList.begin();
for ( ; resultIt != currentResultList.end(); ++resultIt )
{
// move all other
if ( mFeatureId != resultIt.value().snappedAtGeometry )
mVlayer->deleteVertex( resultIt.value().snappedAtGeometry, resultIt.value().snappedVertexNr );
}
}
}
}
if ( count > 0 )
{
mVlayer->endEditCommand();
}
else
{
mVlayer->destroyEditCommand();
}
}
void QgsSelectedFeature::deleteSelectedVertexes()
{
int nSelected = 0;
Q_FOREACH ( QgsVertexEntry *entry, mVertexMap )
{
if ( entry->isSelected() )
nSelected++;
}
if ( nSelected == 0 )
return;
int topologicalEditing = QgsProject::instance()->readNumEntry( "Digitizing", "/TopologicalEditing", 0 );
QMultiMap<double, QgsSnappingResult> currentResultList;
mVlayer->beginEditCommand( QObject::tr( "Deleted vertices" ) );
beginGeometryChange();
bool success = false;
QgsVectorLayer::EditResult res = QgsVectorLayer::Success;
for ( int i = mVertexMap.size() - 1; i > -1 && nSelected > 0; i-- )
{
if ( mVertexMap.at( i )->isSelected() )
{
if ( topologicalEditing )
{
// snap from current vertex
currentResultList.clear();
mVlayer->snapWithContext( mVertexMap.at( i )->pointV1(), ZERO_TOLERANCE, currentResultList, QgsSnapper::SnapToVertex );
}
// only last update should trigger the geometry update
// as vertex selection gets lost on the update
if ( --nSelected == 0 )
endGeometryChange();
if ( res != QgsVectorLayer::EmptyGeometry )
res = mVlayer->deleteVertexV2( mFeatureId, i );
if ( res != QgsVectorLayer::Success && res != QgsVectorLayer::EmptyGeometry )
{
success = false;
QgsDebugMsg( QString( "Deleting vertex %1 failed - resetting" ).arg( i ) );
break;
}
success = true;
if ( topologicalEditing )
{
QMultiMap<double, QgsSnappingResult>::iterator resultIt = currentResultList.begin();
for ( ; resultIt != currentResultList.end(); ++resultIt )
{
// move all other
if ( mFeatureId != resultIt.value().snappedAtGeometry )
mVlayer->deleteVertexV2( resultIt.value().snappedAtGeometry, resultIt.value().snappedVertexNr );
}
}
if ( res == QgsVectorLayer::EmptyGeometry )
{
//geometry has been cleared as a result of deleting vertices (eg not enough vertices left to leave a valid geometry),
//so nothing more to do
QgsGeometry empty;
geometryChanged( mFeatureId, empty );
break;
}
}
}
if ( nSelected > 0 )
endGeometryChange();
if ( success )
{
mVlayer->endEditCommand();
}
else
{
mVlayer->destroyEditCommand();
}
}
