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b1a2bef1fc
* Improve speed (lazy loading) * Loop detection for circular dependencies (Fix #10850) * Some memory leaks fixed * More const-correctness * Fix the attribute editor context
118 lines
3.6 KiB
C++
118 lines
3.6 KiB
C++
/***************************************************************************
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qgsrelationreferencewidget.cpp
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--------------------------------------
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Date : 20.4.2013
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Copyright : (C) 2013 Matthias Kuhn
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Email : matthias dot kuhn at gmx dot ch
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#include "qgsrelationreferencewidgetwrapper.h"
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#include "qgsproject.h"
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#include "qgsrelationmanager.h"
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QgsRelationReferenceWidgetWrapper::QgsRelationReferenceWidgetWrapper( QgsVectorLayer* vl, int fieldIdx, QWidget* editor, QgsMapCanvas* canvas, QgsMessageBar* messageBar, QWidget* parent )
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: QgsEditorWidgetWrapper( vl, fieldIdx, editor, parent )
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, mCanvas( canvas )
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, mMessageBar( messageBar )
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{
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}
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QWidget* QgsRelationReferenceWidgetWrapper::createWidget( QWidget* parent )
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{
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QgsRelationReferenceWidget* w = new QgsRelationReferenceWidget( parent );
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w->setSizePolicy( w->sizePolicy().horizontalPolicy(), QSizePolicy::Expanding );
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return w;
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}
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void QgsRelationReferenceWidgetWrapper::initWidget( QWidget* editor )
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{
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QgsRelationReferenceWidget* w = dynamic_cast<QgsRelationReferenceWidget*>( editor );
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if ( !w )
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{
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w = new QgsRelationReferenceWidget( editor );
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}
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mWidget = w;
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mWidget->setEditorContext( context(), mCanvas, mMessageBar );
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bool showForm = config( "ShowForm", true ).toBool();
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bool mapIdent = config( "MapIdentification", false ).toBool();
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bool readOnlyWidget = config( "ReadOnly", false ).toBool();
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mWidget->setEmbedForm( showForm );
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mWidget->setReadOnlySelector( readOnlyWidget );
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mWidget->setAllowMapIdentification( mapIdent );
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QgsRelation relation = QgsProject::instance()->relationManager()->relation( config( "Relation" ).toString() );
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// If this widget is already embedded by the same relation, reduce functionality
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const QgsAttributeEditorContext* ctx = &context();
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do
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{
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if ( ctx->relation().name() == relation.name() )
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{
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mWidget->setEmbedForm( false );
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mWidget->setReadOnlySelector( false );
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mWidget->setAllowMapIdentification( false );
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}
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ctx = ctx->parentContext();
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}
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while ( ctx );
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mWidget->setRelation( relation, config( "AllowNULL" ).toBool() );
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connect( mWidget, SIGNAL( relatedFeatureChanged( QVariant ) ), this, SLOT( relatedFeatureChanged( QVariant ) ) );
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}
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QVariant QgsRelationReferenceWidgetWrapper::value()
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{
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if ( !mWidget )
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return QVariant( field().type() );
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QVariant v = mWidget->foreignKey();
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if ( v.isNull() )
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{
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return QVariant( field().type() );
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}
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else
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{
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return v;
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}
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}
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void QgsRelationReferenceWidgetWrapper::setValue( const QVariant& value )
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{
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if ( !mWidget )
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return;
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mWidget->setRelatedFeature( value );
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}
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void QgsRelationReferenceWidgetWrapper::setEnabled( bool enabled )
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{
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if ( !mWidget )
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return;
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mWidget->setRelationEditable( enabled );
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}
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void QgsRelationReferenceWidgetWrapper::relatedFeatureChanged( QVariant value )
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{
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if ( !value.isValid() || value.isNull() )
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{
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value = QVariant( field().type() );
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}
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emit valueChanged( value );
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}
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