QGIS API Documentation  3.2.0-Bonn (bc43194)
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 #include "qgis_gui.h"
21 
23 
24 class QgsColorButton;
25 
33 {
34  Q_OBJECT
35  public:
36  explicit QgsColorWidgetWrapper( QgsVectorLayer *vl, int fieldIdx, QWidget *editor = nullptr, QWidget *parent = nullptr );
37 
38  // QgsEditorWidgetWrapper interface
39  public:
40  QVariant value() const override;
41  void showIndeterminateState() override;
42 
43  protected:
44  QWidget *createWidget( QWidget *parent ) override;
45  void initWidget( QWidget *editor ) override;
46  bool valid() const override;
47 
48  public slots:
49  void setValue( const QVariant &value ) override;
50 
51  private:
52  void updateConstraintWidgetStatus() override;
53 
54  QgsColorButton *mColorButton = nullptr;
55 };
56 
57 #endif // QGSCOLORWIDGETWRAPPER_H
Wraps a color widget.
Manages an editor widget Widget and wrapper share the same parent.
A cross platform button subclass for selecting colors.
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
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.