void QgsLayerPropertiesWidget::updateSymbolLayerWidget( QgsSymbolLayerV2* layer )
{
if ( stackedWidget->currentWidget() != pageDummy )
{
// stop updating from the original widget
disconnect( stackedWidget->currentWidget(), SIGNAL( changed() ), this, SLOT( emitSignalChanged() ) );
stackedWidget->removeWidget( stackedWidget->currentWidget() );
}
QgsSymbolLayerV2Registry* pReg = QgsSymbolLayerV2Registry::instance();
QString layerType = layer->layerType();
QgsSymbolLayerV2AbstractMetadata* am = pReg->symbolLayerMetadata( layerType );
if ( am )
{
QgsSymbolLayerV2Widget* w = am->createSymbolLayerWidget( mVectorLayer );
if ( w )
{
w->setSymbolLayer( layer );
stackedWidget->addWidget( w );
stackedWidget->setCurrentWidget( w );
// start recieving updates from widget
connect( w , SIGNAL( changed() ), this, SLOT( emitSignalChanged() ) );
return;
}
}
// When anything is not right
stackedWidget->setCurrentWidget( pageDummy );
}
void QgsSymbolV2PropertiesDialog::loadPropertyWidgets()
{
QgsSymbolLayerV2Registry* pReg = QgsSymbolLayerV2Registry::instance();
QStringList layerTypes = pReg->symbolLayersForType( mSymbol->type() );
// also load line symbol layers for fill symbols
if ( mSymbol->type() == QgsSymbolV2::Fill )
layerTypes += pReg->symbolLayersForType( QgsSymbolV2::Line );
for ( int i = 0; i < layerTypes.count(); i++ )
{
QString layerType = layerTypes[i];
QgsSymbolLayerV2AbstractMetadata* am = pReg->symbolLayerMetadata( layerType );
if ( am == NULL ) // check whether the metadata is assigned
continue;
QgsSymbolLayerV2Widget* w = am->createSymbolLayerWidget();
if ( w == NULL ) // check whether the function returns correct widget
continue;
mWidgets[layerType] = w;
stackedWidget->addWidget( w );
}
}
void QgsSymbolV2PropertiesDialog::layerTypeChanged()
{
QgsSymbolLayerV2* layer = currentLayer();
if ( layer == NULL ) return;
QString newLayerType = cboLayerType->itemData( cboLayerType->currentIndex() ).toString();
if ( layer->layerType() == newLayerType )
return;
// get creation function for new layer from registry
QgsSymbolLayerV2Registry* pReg = QgsSymbolLayerV2Registry::instance();
QgsSymbolLayerV2AbstractMetadata* am = pReg->symbolLayerMetadata( newLayerType );
if ( am == NULL ) // check whether the metadata is assigned
return;
// change layer to a new (with different type)
QgsSymbolLayerV2* newLayer = am->createSymbolLayer( QgsStringMap() );
if ( newLayer == NULL )
return;
mSymbol->changeSymbolLayer( currentLayerIndex(), newLayer );
updateSymbolLayerWidget( newLayer );
// update symbol layer item
SymbolLayerItem* item = currentLayerItem();
item->setLayer( newLayer );
item->updatePreview();
updatePreview();
}
void QgsLayerPropertiesWidget::layerTypeChanged()
{
QgsSymbolLayerV2* layer = mLayer;
if ( !layer )
return;
QString newLayerType = cboLayerType->itemData( cboLayerType->currentIndex() ).toString();
if ( layer->layerType() == newLayerType )
return;
// get creation function for new layer from registry
QgsSymbolLayerV2Registry* pReg = QgsSymbolLayerV2Registry::instance();
QgsSymbolLayerV2AbstractMetadata* am = pReg->symbolLayerMetadata( newLayerType );
if ( am == NULL ) // check whether the metadata is assigned
return;
// change layer to a new (with different type)
QgsSymbolLayerV2* newLayer = am->createSymbolLayer( QgsStringMap() );
if ( newLayer == NULL )
return;
updateSymbolLayerWidget( newLayer );
emit changeLayer( newLayer );
}
