QGIS API Documentation  2.15.0-Master (af20121)
qgscheckboxwidgetwrapper.cpp
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1 /***************************************************************************
2  qgscheckboxwidgetwrapper.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  : QgsEditorWidgetWrapper( vl, fieldIdx, editor, parent )
20  , mCheckBox( nullptr )
21  , mGroupBox( nullptr )
22 {
23 }
24 
25 
27 {
28  QVariant v;
29 
30  if ( mGroupBox )
31  v = mGroupBox->isChecked() ? config( "CheckedState" ) : config( "UncheckedState" );
32 
33  if ( mCheckBox )
34  v = mCheckBox->isChecked() ? config( "CheckedState" ) : config( "UncheckedState" );
35 
36 
37  return v;
38 }
39 
41 {
42  if ( mCheckBox )
43  {
44  whileBlocking( mCheckBox )->setCheckState( Qt::PartiallyChecked );
45  }
46 }
47 
49 {
50  return new QCheckBox( parent );
51 }
52 
54 {
55  mCheckBox = qobject_cast<QCheckBox*>( editor );
56  mGroupBox = qobject_cast<QGroupBox*>( editor );
57 
58  if ( mCheckBox )
59  connect( mCheckBox, SIGNAL( toggled( bool ) ), this, SLOT( valueChanged( bool ) ) );
60  if ( mGroupBox )
61  connect( mGroupBox, SIGNAL( toggled( bool ) ), this, SLOT( valueChanged( bool ) ) );
62 }
63 
65 {
66  return mCheckBox || mGroupBox;
67 }
68 
70 {
71  bool state = ( value == config( "CheckedState" ) );
72  if ( mGroupBox )
73  {
74  mGroupBox->setChecked( state );
75  }
76 
77  if ( mCheckBox )
78  {
79  mCheckBox->setChecked( state );
80  }
81 }
QWidget * createWidget(QWidget *parent) override
This method should create a new widget with the provided parent.
void valueChanged()
Will call the value() method to determine the emitted value.
Manages an editor widget Widget and wrapper share the same parent.
void showIndeterminateState() override
Sets the widget to display in an indeterminate "mixed value" state.
bool valid() const override
Return true if the widget has been properly initialized.
bool isChecked() const
QVariant value() const override
Will be used to access the widget&#39;s value.
void initWidget(QWidget *editor) override
This method should initialize the editor widget with runtime data.
bool isChecked() const
QgsCheckboxWidgetWrapper(QgsVectorLayer *vl, int fieldIdx, QWidget *editor=nullptr, QWidget *parent=nullptr)
QgsSignalBlocker< Object > whileBlocking(Object *object)
Temporarily blocks signals from a QObject while calling a single method from the object.
Definition: qgis.h:332
void setValue(const QVariant &value) override
QgsEditorWidgetConfig config() const
Returns the whole config.
bool connect(const QObject *sender, const char *signal, const QObject *receiver, const char *method, Qt::ConnectionType type)
QObject * parent() const
Represents a vector layer which manages a vector based data sets.