QGIS API Documentation  3.0.2-Girona (307d082)
qgsvaluerelationwidgetwrapper.h
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1 /***************************************************************************
2  qgsvaluerelationwidgetwrapper.h
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 
16 #ifndef QGSVALUERELATIONWIDGETWRAPPER_H
17 #define QGSVALUERELATIONWIDGETWRAPPER_H
18 
19 #include "qgseditorwidgetwrapper.h"
21 
22 #include <QComboBox>
23 #include <QListWidget>
24 #include <QLineEdit>
25 #include "qgis_gui.h"
26 
28 
30 
53 {
54  Q_OBJECT
55 
56  public:
57  explicit QgsValueRelationWidgetWrapper( QgsVectorLayer *vl, int fieldIdx, QWidget *editor = nullptr, QWidget *parent = nullptr );
58 
59  QVariant value() const override;
60 
61  void showIndeterminateState() override;
62 
63  void setEnabled( bool enabled ) override;
64 
65  protected:
66  QWidget *createWidget( QWidget *parent ) override;
67  void initWidget( QWidget *editor ) override;
68  bool valid() const override;
69 
70  public slots:
71  void setValue( const QVariant &value ) override;
72 
73  private:
74  QComboBox *mComboBox = nullptr;
75  QListWidget *mListWidget = nullptr;
76  QLineEdit *mLineEdit = nullptr;
77 
79  QgsVectorLayer *mLayer = nullptr;
80 
81  bool mEnabled = true;
82 
84  friend class TestQgsValueRelationWidgetWrapper;
85 };
86 
87 #endif // QGSVALUERELATIONWIDGETWRAPPER_H
Manages an editor widget Widget and wrapper share the same parent.
void setEnabled(bool enabled) override
Is used to enable or disable the edit functionality of the managed widget.
QVector< QgsValueRelationFieldFormatter::ValueRelationItem > ValueRelationCache
Wraps a value relation widget.
virtual void showIndeterminateState()
Sets the widget to display in an indeterminate "mixed value" state.
virtual bool valid() const =0
Return 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
virtual QVariant value() const =0
Will be used to access the widget&#39;s value.
Represents a vector layer which manages a vector based data sets.