void QgsComposerLegendWidget::updateLegend()
{
if ( mLegend )
{
mLegend->beginCommand( tr( "Legend updated" ) );
QgisApp* app = QgisApp::instance();
if ( !app )
{
return;
}
//get layer id list
QStringList layerIdList;
QgsMapCanvas* canvas = app->mapCanvas();
if ( canvas )
{
QgsMapRenderer* renderer = canvas->mapRenderer();
if ( renderer )
{
layerIdList = renderer->layerSet();
}
}
//and also group info
QgsAppLegendInterface legendIface( app->legend() );
QList< GroupLayerInfo > groupInfo = legendIface.groupLayerRelationship();
mLegend->model()->setLayerSetAndGroups( layerIdList, groupInfo );
mLegend->endCommand();
}
}
void QgsComposerLegendWidget::on_mAddToolButton_clicked()
{
if ( !mLegend )
{
return;
}
QStandardItemModel* itemModel = qobject_cast<QStandardItemModel *>( mItemTreeView->model() );
if ( !itemModel )
{
return;
}
QgisApp* app = QgisApp::instance();
if ( !app )
{
return;
}
QgsMapCanvas* canvas = app->mapCanvas();
if ( canvas )
{
QList<QgsMapLayer*> layers = canvas->layers();
QgsComposerLegendLayersDialog addDialog( layers );
if ( addDialog.exec() == QDialog::Accepted )
{
QgsMapLayer* layer = addDialog.selectedLayer();
if ( layer )
{
mLegend->beginCommand( "Legend item added" );
mLegend->model()->addLayer( layer );
mLegend->endCommand();
}
}
}
}
