QGIS API Documentation  2.18.21-Las Palmas (9fba24a)
qgscolorwidgetwrapper.h
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1 /***************************************************************************
2  qgscolorwidgetwrapper.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 QGSCOLORWIDGETWRAPPER_H
17 #define QGSCOLORWIDGETWRAPPER_H
18 
19 #include "qgseditorwidgetwrapper.h"
20 
21 #include "qgscolorbuttonv2.h"
22 
23 
30 {
31  Q_OBJECT
32  public:
33  explicit QgsColorWidgetWrapper( QgsVectorLayer* vl, int fieldIdx, QWidget* editor = nullptr, QWidget* parent = nullptr );
34 
35  // QgsEditorWidgetWrapper interface
36  public:
37  QVariant value() const override;
38  void showIndeterminateState() override;
39 
40  protected:
41  QWidget* createWidget( QWidget* parent ) override;
42  void initWidget( QWidget* editor ) override;
43  bool valid() const override;
44 
45  public slots:
46  void setValue( const QVariant& value ) override;
47 
48  private:
49  void updateConstraintWidgetStatus( bool constraintValid ) override;
50 
51  QgsColorButtonV2* mColorButton;
52 };
53 
54 #endif // QGSCOLORWIDGETWRAPPER_H
Wraps a color widget.
A cross platform button subclass for selecting colors.
Manages an editor widget Widget and wrapper share the same parent.
virtual void updateConstraintWidgetStatus(bool constraintValid)
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
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.
virtual QVariant value() const =0
Will be used to access the widget's value.
Represents a vector layer which manages a vector based data sets.