void QgsDualView::columnBoxInit()
{
// load fields
QList<QgsField> fields = mLayer->fields().toList();
QString defaultField;
// default expression: saved value
QString displayExpression = mLayer->displayExpression();
if ( displayExpression.isEmpty() )
{
// ... there isn't really much to display
displayExpression = QStringLiteral( "'[Please define preview text]'" );
}
mFeatureListPreviewButton->addAction( mActionExpressionPreview );
mFeatureListPreviewButton->addAction( mActionPreviewColumnsMenu );
Q_FOREACH ( const QgsField &field, fields )
{
int fieldIndex = mLayer->fields().lookupField( field.name() );
if ( fieldIndex == -1 )
continue;
QString fieldName = field.name();
if ( QgsGui::editorWidgetRegistry()->findBest( mLayer, fieldName ).type() != QLatin1String( "Hidden" ) )
{
QIcon icon = mLayer->fields().iconForField( fieldIndex );
QString text = mLayer->attributeDisplayName( fieldIndex );
// Generate action for the preview popup button of the feature list
QAction *previewAction = new QAction( icon, text, mFeatureListPreviewButton );
connect( previewAction, &QAction::triggered, this, [ = ] { previewColumnChanged( previewAction, fieldName ); } );
mPreviewColumnsMenu->addAction( previewAction );
if ( text == defaultField )
{
mFeatureListPreviewButton->setDefaultAction( previewAction );
}
}
}
void QgsDualView::columnBoxInit()
{
// load fields
QList<QgsField> fields = mLayer->fields().toList();
QString defaultField;
// default expression: saved value
QString displayExpression = mLayer->displayExpression();
if ( displayExpression.isEmpty() )
{
// ... there isn't really much to display
displayExpression = QStringLiteral( "'[Please define preview text]'" );
}
mFeatureListPreviewButton->addAction( mActionExpressionPreview );
mFeatureListPreviewButton->addAction( mActionPreviewColumnsMenu );
const auto constFields = fields;
for ( const QgsField &field : constFields )
{
int fieldIndex = mLayer->fields().lookupField( field.name() );
if ( fieldIndex == -1 )
continue;
QString fieldName = field.name();
if ( QgsGui::editorWidgetRegistry()->findBest( mLayer, fieldName ).type() != QLatin1String( "Hidden" ) )
{
QIcon icon = mLayer->fields().iconForField( fieldIndex );
QString text = mLayer->attributeDisplayName( fieldIndex );
// Generate action for the preview popup button of the feature list
QAction *previewAction = new QAction( icon, text, mFeatureListPreviewButton );
connect( previewAction, &QAction::triggered, this, [ = ] { previewColumnChanged( previewAction, fieldName ); } );
mPreviewColumnsMenu->addAction( previewAction );
if ( text == defaultField )
{
mFeatureListPreviewButton->setDefaultAction( previewAction );
}
}
}
QAction *sortByPreviewExpression = new QAction( QgsApplication::getThemeIcon( QStringLiteral( "sort.svg" ) ), tr( "Sort by preview expression" ), this );
connect( sortByPreviewExpression, &QAction::triggered, this, &QgsDualView::sortByPreviewExpression );
mFeatureListPreviewButton->addAction( sortByPreviewExpression );
QAction *separator = new QAction( mFeatureListPreviewButton );
separator->setSeparator( true );
mFeatureListPreviewButton->addAction( separator );
restoreRecentDisplayExpressions();
// If there is no single field found as preview
if ( !mFeatureListPreviewButton->defaultAction() )
{
mFeatureListView->setDisplayExpression( displayExpression );
mFeatureListPreviewButton->setDefaultAction( mActionExpressionPreview );
setDisplayExpression( mFeatureListView->displayExpression() );
}
else
{
mFeatureListPreviewButton->defaultAction()->trigger();
}
}