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qgsvaluemapwidgetwrapper.cpp
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1 /***************************************************************************
2  qgsvaluemapwidgetwrapper.cpp
3  --------------------------------------
4  Date : 5.1.2014
5  Copyright : (C) 2014 Matthias Kuhn
6  Email : matthias dot kuhn at gmx 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 QgsValueMapWidgetWrapper::QgsValueMapWidgetWrapper( QgsVectorLayer* vl, int fieldIdx, QWidget* editor, QWidget* parent )
19  : QgsEditorWidgetWrapper( vl, fieldIdx, editor, parent )
20  , mComboBox( NULL )
21 {
22 }
23 
24 
26 {
27  QVariant v;
28 
29  if ( mComboBox )
30  v = mComboBox->itemData( mComboBox->currentIndex() );
31 
32  return v;
33 }
34 
35 QWidget* QgsValueMapWidgetWrapper::createWidget( QWidget* parent )
36 {
37  return new QComboBox( parent );
38 }
39 
40 void QgsValueMapWidgetWrapper::initWidget( QWidget* editor )
41 {
42  mComboBox = qobject_cast<QComboBox*>( editor );
43 
44  if ( mComboBox )
45  {
46  const QgsEditorWidgetConfig cfg = config();
47  QgsEditorWidgetConfig::ConstIterator it = cfg.constBegin();
48 
49  while ( it != cfg.constEnd() )
50  {
51  mComboBox->addItem( it.key(), it.value() );
52  ++it;
53  }
54  connect( mComboBox, SIGNAL( currentIndexChanged( int ) ), this, SLOT( valueChanged() ) );
55  }
56 }
57 
58 void QgsValueMapWidgetWrapper::setValue( const QVariant& value )
59 {
60  if ( mComboBox )
61  mComboBox->setCurrentIndex( mComboBox->findData( value ) );
62 }
void setValue(const QVariant &value) override
QWidget * createWidget(QWidget *parent) override
This method should create a new widget with the provided parent.
QgsValueMapWidgetWrapper(QgsVectorLayer *vl, int fieldIdx, QWidget *editor=0, QWidget *parent=0)
void valueChanged()
Will call the value() method to determine the emitted value.
Manages an editor widget Widget and wrapper share the same parent.
const QgsEditorWidgetConfig config()
Returns the whole config.
QVariant value() override
Will be used to access the widget's value.
void initWidget(QWidget *editor) override
This method should initialize the editor widget with runtime data.
QMap< QString, QVariant > QgsEditorWidgetConfig
Holds a set of configuration parameters for a editor widget wrapper.
Represents a vector layer which manages a vector based data sets.