QGIS API Documentation  3.10.0-A Coruña (6c816b4204)
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 
18 QgsCheckboxWidgetWrapper::QgsCheckboxWidgetWrapper( QgsVectorLayer *layer, int fieldIdx, QWidget *editor, QWidget *parent )
19  : QgsEditorWidgetWrapper( layer, fieldIdx, editor, parent )
20 
21 {
22 }
23 
24 
26 {
27  QVariant v;
28 
29  if ( field().type() == QVariant::Bool )
30  {
31  if ( mGroupBox )
32  v = mGroupBox->isChecked();
33  else if ( mCheckBox )
34  v = mCheckBox->isChecked();
35  }
36  else
37  {
38  if ( mGroupBox )
39  v = mGroupBox->isChecked() ? config( QStringLiteral( "CheckedState" ) ) : config( QStringLiteral( "UncheckedState" ) );
40 
41  else if ( mCheckBox )
42  v = mCheckBox->isChecked() ? config( QStringLiteral( "CheckedState" ) ) : config( QStringLiteral( "UncheckedState" ) );
43  }
44 
45  return v;
46 }
47 
49 {
50  if ( mCheckBox )
51  {
52  whileBlocking( mCheckBox )->setCheckState( Qt::PartiallyChecked );
53  }
54 }
55 
56 QWidget *QgsCheckboxWidgetWrapper::createWidget( QWidget *parent )
57 {
58  return new QCheckBox( parent );
59 }
60 
61 void QgsCheckboxWidgetWrapper::initWidget( QWidget *editor )
62 {
63  mCheckBox = qobject_cast<QCheckBox *>( editor );
64  mGroupBox = qobject_cast<QGroupBox *>( editor );
65 
66  if ( mCheckBox )
67  connect( mCheckBox, &QAbstractButton::toggled, this, [ = ]( bool state )
68  {
70  emit valueChanged( state );
72  emit valuesChanged( state );
73  } );
74  if ( mGroupBox )
75  connect( mGroupBox, &QGroupBox::toggled, this, [ = ]( bool state )
76  {
78  emit valueChanged( state );
80  emit valuesChanged( state );
81  } );
82 }
83 
85 {
86  return mCheckBox || mGroupBox;
87 }
88 
89 void QgsCheckboxWidgetWrapper::updateValues( const QVariant &value, const QVariantList & )
90 {
91  bool state = false;
92 
93  if ( field().type() == QVariant::Bool )
94  {
95  state = value.toBool();
96  }
97  else
98  {
99  state = ( value == config( QStringLiteral( "CheckedState" ) ) );
100  }
101  if ( mGroupBox )
102  {
103  mGroupBox->setChecked( state );
104  }
105 
106  if ( mCheckBox )
107  {
108  mCheckBox->setChecked( state );
109  }
110 }
QWidget * createWidget(QWidget *parent) override
This method should create a new widget with the provided parent.
QgsField field() const
Access the field.
Manages an editor widget Widget and wrapper share the same parent.
#define Q_NOWARN_DEPRECATED_PUSH
Definition: qgis.h:649
void valuesChanged(const QVariant &value, const QVariantList &additionalFieldValues=QVariantList())
Emit this signal, whenever the value changed.
void showIndeterminateState() override
Sets the widget to display in an indeterminate "mixed value" state.
QVariantMap config() const
Returns the whole config.
bool valid() const override
Returns true if the widget has been properly initialized.
QgsCheckboxWidgetWrapper(QgsVectorLayer *layer, int fieldIdx, QWidget *editor=nullptr, QWidget *parent=nullptr)
Constructor for QgsCheckboxWidgetWrapper.
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.
#define Q_NOWARN_DEPRECATED_POP
Definition: qgis.h:650
QgsSignalBlocker< Object > whileBlocking(Object *object)
Temporarily blocks signals from a QObject while calling a single method from the object.
Definition: qgis.h:227
Represents a vector layer which manages a vector based data sets.
Q_DECL_DEPRECATED void valueChanged(const QVariant &value)
Emit this signal, whenever the value changed.