void QgsComposerColumnSourceDelegate::setModelData( QWidget* editor, QAbstractItemModel* model, const QModelIndex& index ) const
{
QgsFieldExpressionWidget *fieldExpression = static_cast<QgsFieldExpressionWidget*>( editor );
QString field = fieldExpression->currentField();
model->setData( index, field, Qt::EditRole );
}
QMap< QString, QString > QgsDataDefinedSymbolDialog::dataDefinedProperties() const
{
QMap< QString, QString > propertyMap;
int rowCount = mTreeWidget->topLevelItemCount();
for ( int i = 0; i < rowCount; ++i )
{
QTreeWidgetItem* item = mTreeWidget->topLevelItem( i );
//property
QString propertyKey = item->data( 0, Qt::UserRole ).toString();
//checked?
bool checked = false;
QCheckBox* cb = qobject_cast<QCheckBox*>( mTreeWidget->itemWidget( item, 0 ) );
if ( cb )
{
checked = cb->isChecked();
}
QString expressionString;
if ( checked )
{
QgsFieldExpressionWidget* few = qobject_cast<QgsFieldExpressionWidget*>( mTreeWidget->itemWidget( item, 1 ) );
expressionString = few->currentField();
}
propertyMap.insert( propertyKey, expressionString );
}
return propertyMap;
}
void QgsComposerColumnSourceDelegate::setEditorData( QWidget* editor, const QModelIndex& index ) const
{
QString field = index.model()->data( index, Qt::EditRole ).toString();
//set the value for the field combobox
QgsFieldExpressionWidget *fieldExpression = static_cast<QgsFieldExpressionWidget*>( editor );
fieldExpression->setField( field );
}
QWidget* QgsComposerColumnSourceDelegate::createEditor( QWidget* parent, const QStyleOptionViewItem& option, const QModelIndex& index ) const
{
Q_UNUSED( option );
Q_UNUSED( index );
QgsFieldExpressionWidget *fieldExpression = new QgsFieldExpressionWidget( parent );
fieldExpression->setLayer( mVectorLayer );
//listen out for field changes
connect( fieldExpression, SIGNAL( fieldChanged( QString ) ), this, SLOT( commitAndCloseEditor() ) );
return fieldExpression;
}
QWidget *QgsComposerColumnSourceDelegate::createEditor( QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index ) const
{
Q_UNUSED( option );
Q_UNUSED( index );
QgsFieldExpressionWidget *fieldExpression = new QgsFieldExpressionWidget( parent );
fieldExpression->setLayer( mVectorLayer );
fieldExpression->registerExpressionContextGenerator( this );
//listen out for field changes
connect( fieldExpression, static_cast < void ( QgsFieldExpressionWidget::* )( const QString & ) >( &QgsFieldExpressionWidget::fieldChanged ), this, [ = ] { const_cast< QgsComposerColumnSourceDelegate * >( this )->commitAndCloseEditor(); } );
return fieldExpression;
}
QgsDataDefinedSymbolDialog::QgsDataDefinedSymbolDialog( const QList< DataDefinedSymbolEntry >& entries, const QgsVectorLayer* vl, QWidget * parent, Qt::WindowFlags f )
: QDialog( parent, f )
, mVectorLayer( vl )
{
setupUi( this );
QgsFields attributeFields;
if ( mVectorLayer )
{
attributeFields = mVectorLayer->pendingFields();
}
int i = 0;
QList< DataDefinedSymbolEntry >::const_iterator entryIt = entries.constBegin();
for ( ; entryIt != entries.constEnd(); ++entryIt )
{
QTreeWidgetItem* item = new QTreeWidgetItem( mTreeWidget );
//check box
QCheckBox* cb = new QCheckBox( entryIt->title, this );
cb->setChecked( !entryIt->initialValue.isEmpty() );
item->setData( 0, Qt::UserRole, entryIt->property );
mTreeWidget->setItemWidget( item, 0, cb );
// expression
QgsFieldExpressionWidget* few = new QgsFieldExpressionWidget( this );
few->setMaximumWidth( 350 );
few->setSizePolicy( QSizePolicy::Expanding, QSizePolicy::Maximum );
few->setLayer( const_cast<QgsVectorLayer*>( vl ) );
few->setField( entryIt->initialValue );
mTreeWidget->setItemWidget( item, 1, few );
//help text
item->setText( 2, entryIt->helpText );
mTreeWidget->addTopLevelItem( item );
++i;
}
for ( int c = 0; c != mTreeWidget->columnCount() - 1; c++ )
mTreeWidget->resizeColumnToContents( c );
QSettings settings;
restoreGeometry( settings.value( "/Windows/QgsDataDefinedSymbolDialog/geometry" ).toByteArray() );
}