QGIS API Documentation 3.27.0-Master (0a97e3138f)
qgsenumerationwidgetfactory.cpp
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1/***************************************************************************
2 qgsenumerationwidgetfactory.cpp
3 --------------------------------------
4 Date : 5.1.2014
5 Copyright : (C) 2014 Matthias Kuhn
6 Email : matthias at opengis dot ch
7 ***************************************************************************
8 * *
9 * This program is free software; you can redistribute it and/or modify *
10 * it under the terms of the GNU General Public License as published by *
11 * the Free Software Foundation; either version 2 of the License, or *
12 * (at your option) any later version. *
13 * *
14 ***************************************************************************/
15
17
19#include "qgsdummyconfigdlg.h"
20#include "qgsvectorlayer.h"
22
25{
26}
27
28QgsEditorWidgetWrapper *QgsEnumerationWidgetFactory::create( QgsVectorLayer *vl, int fieldIdx, QWidget *editor, QWidget *parent ) const
29{
30 return new QgsEnumerationWidgetWrapper( vl, fieldIdx, editor, parent );
31}
32
34{
35 return new QgsDummyConfigDlg( vl, fieldIdx, parent, QObject::tr( "Combo box with values that can be used within the column's type. Must be supported by the provider." ) );
36}
37
38
39unsigned int QgsEnumerationWidgetFactory::fieldScore( const QgsVectorLayer *vl, int fieldIdx ) const
40{
41 QStringList list;
42 vl->dataProvider()->enumValues( fieldIdx, list );
43 if ( !list.isEmpty() )
44 return 20;
45 else
46 return 0;
47}
This class should be subclassed for every configurable editor widget type.
Every attribute editor widget needs a factory, which inherits this class.
Manages an editor widget Widget and wrapper share the same parent.
unsigned int fieldScore(const QgsVectorLayer *vl, int fieldIdx) const override
This method allows disabling this editor widget type for a certain field.
QgsEditorWidgetWrapper * create(QgsVectorLayer *vl, int fieldIdx, QWidget *editor, QWidget *parent) const override
Override this in your implementation.
QgsEnumerationWidgetFactory(const QString &name)
Constructor for QgsEnumerationWidgetFactory, where name is a human-readable name for the factory.
QgsEditorConfigWidget * configWidget(QgsVectorLayer *vl, int fieldIdx, QWidget *parent) const override
Override this in your implementation.
virtual void enumValues(int index, QStringList &enumList) const
Returns the possible enum values of an attribute.
Represents a vector layer which manages a vector based data sets.
QgsVectorDataProvider * dataProvider() FINAL
Returns the layer's data provider, it may be nullptr.