void QgsSymbolSelectorWidget::addLayer()
{
QModelIndex idx = layersTree->currentIndex();
if ( !idx.isValid() )
return;
int insertIdx = -1;
SymbolLayerItem *item = static_cast<SymbolLayerItem *>( model->itemFromIndex( idx ) );
if ( item->isLayer() )
{
insertIdx = item->row();
item = static_cast<SymbolLayerItem *>( item->parent() );
}
QgsSymbol *parentSymbol = item->symbol();
// save data-defined values at marker level
QgsProperty ddSize( parentSymbol->type() == QgsSymbol::Marker
? static_cast<QgsMarkerSymbol *>( parentSymbol )->dataDefinedSize()
: QgsProperty() );
QgsProperty ddAngle( parentSymbol->type() == QgsSymbol::Marker
? static_cast<QgsMarkerSymbol *>( parentSymbol )->dataDefinedAngle()
: QgsProperty() );
QgsProperty ddWidth( parentSymbol->type() == QgsSymbol::Line
? static_cast<QgsLineSymbol *>( parentSymbol )->dataDefinedWidth()
: QgsProperty() );
QgsSymbolLayer *newLayer = QgsApplication::symbolLayerRegistry()->defaultSymbolLayer( parentSymbol->type() );
if ( insertIdx == -1 )
parentSymbol->appendSymbolLayer( newLayer );
else
parentSymbol->insertSymbolLayer( item->rowCount() - insertIdx, newLayer );
// restore data-defined values at marker level
if ( ddSize )
static_cast<QgsMarkerSymbol *>( parentSymbol )->setDataDefinedSize( ddSize );
if ( ddAngle )
static_cast<QgsMarkerSymbol *>( parentSymbol )->setDataDefinedAngle( ddAngle );
if ( ddWidth )
static_cast<QgsLineSymbol *>( parentSymbol )->setDataDefinedWidth( ddWidth );
SymbolLayerItem *newLayerItem = new SymbolLayerItem( newLayer );
item->insertRow( insertIdx == -1 ? 0 : insertIdx, newLayerItem );
item->updatePreview();
layersTree->setCurrentIndex( model->indexFromItem( newLayerItem ) );
updateUi();
updatePreview();
}
void QgsSymbolSelectorWidget::duplicateLayer()
{
QModelIndex idx = layersTree->currentIndex();
if ( !idx.isValid() )
return;
SymbolLayerItem *item = static_cast<SymbolLayerItem *>( model->itemFromIndex( idx ) );
if ( !item->isLayer() )
return;
QgsSymbolLayer *source = item->layer();
int insertIdx = item->row();
item = static_cast<SymbolLayerItem *>( item->parent() );
QgsSymbol *parentSymbol = item->symbol();
QgsSymbolLayer *newLayer = source->clone();
if ( insertIdx == -1 )
parentSymbol->appendSymbolLayer( newLayer );
else
parentSymbol->insertSymbolLayer( item->rowCount() - insertIdx, newLayer );
SymbolLayerItem *newLayerItem = new SymbolLayerItem( newLayer );
item->insertRow( insertIdx == -1 ? 0 : insertIdx, newLayerItem );
if ( newLayer->subSymbol() )
{
loadSymbol( newLayer->subSymbol(), newLayerItem );
layersTree->setExpanded( newLayerItem->index(), true );
}
item->updatePreview();
layersTree->setCurrentIndex( model->indexFromItem( newLayerItem ) );
updateUi();
updatePreview();
}