QGIS API Documentation  3.2.0-Bonn (bc43194)
qgslistwidgetwrapper.h
Go to the documentation of this file.
1 /***************************************************************************
2  qgslistwidgetwrapper.h
3  --------------------------------------
4  Date : 09.2016
5  Copyright : (C) 2016 Patrick Valsecchi
6  Email : [email protected]
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 
16 #ifndef QGSLISTWIDGETWRAPPER_H
17 #define QGSLISTWIDGETWRAPPER_H
18 
19 #include "qgseditorwidgetwrapper.h"
20 #include "qgis_gui.h"
21 
23 
24 class QgsListWidget;
25 
33 {
34  Q_OBJECT
35  public:
36 
40  explicit QgsListWidgetWrapper( QgsVectorLayer *vl, int fieldIdx, QWidget *editor = nullptr, QWidget *parent = nullptr );
41 
42  // QgsEditorWidgetWrapper interface
43  public:
44  QVariant value() const override;
45  void showIndeterminateState() override;
46 
47  protected:
48  QWidget *createWidget( QWidget *parent ) override;
49  void initWidget( QWidget *editor ) override;
50  bool valid() const override;
51 
52  public slots:
53  void setValue( const QVariant &value ) override;
54 
55  private slots:
56  void onValueChanged();
57 
58  private:
59  void updateConstraintWidgetStatus() override;
60 
61  QgsListWidget *mWidget = nullptr;
62 };
63 
64 #endif // QGSLISTWIDGETWRAPPER_H
Manages an editor widget Widget and wrapper share the same parent.
virtual void updateConstraintWidgetStatus()
This should update the widget with a visual cue if a constraint status changed.
virtual void showIndeterminateState()
Sets the widget to display in an indeterminate "mixed value" state.
virtual bool valid() const =0
Returns true if the widget has been properly initialized.
virtual QWidget * createWidget(QWidget *parent)=0
This method should create a new widget with the provided parent.
virtual void initWidget(QWidget *editor)
This method should initialize the editor widget with runtime data.
virtual void setValue(const QVariant &value)=0
Is called, when the value of the widget needs to be changed.
#define SIP_NO_FILE
Definition: qgis_sip.h:23
Widget allowing to edit a QVariantList, using a table.
Definition: qgslistwidget.h:66
virtual QVariant value() const =0
Will be used to access the widget's value.
Wraps a list widget.
Represents a vector layer which manages a vector based data sets.