QGIS API Documentation  3.2.0-Bonn (bc43194)
qgsvaluemapsearchwidgetwrapper.h
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1 /***************************************************************************
2  qgsvaluemapsearchwidgetwrapper.h
3  --------------------------------------
4  Date : 21.5.2015
5  Copyright : (C) 2015 Karolina Alexiou
6  Email : carolinegr at gmail dot com
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 QGSVALUEMAPSEARCHWIDGETWRAPPER_H
17 #define QGSVALUEMAPSEARCHWIDGETWRAPPER_H
18 
19 #include "qgssearchwidgetwrapper.h"
20 #include "qgis.h"
21 #include <QComboBox>
22 #include "qgis_gui.h"
23 
32 {
33  Q_OBJECT
34  public:
35 
37  explicit QgsValueMapSearchWidgetWrapper( QgsVectorLayer *vl, int fieldIdx, QWidget *parent SIP_TRANSFERTHIS = nullptr );
38  bool applyDirectly() override;
39  QString expression() const override;
40  bool valid() const override;
41  QgsSearchWidgetWrapper::FilterFlags supportedFlags() const override;
42  QgsSearchWidgetWrapper::FilterFlags defaultFlags() const override;
43  QString createExpression( QgsSearchWidgetWrapper::FilterFlags flags ) const override;
44 
45  public slots:
46 
47  void clearWidget() override;
48  void setEnabled( bool enabled ) override;
49 
50  protected:
51  QWidget *createWidget( QWidget *parent ) override;
52  void initWidget( QWidget *editor ) override;
53 
54  protected slots:
55  void setExpression( const QString &exp ) override;
56 
57  private slots:
58  void comboBoxIndexChanged( int idx );
59 
60  private:
61  QComboBox *mComboBox = nullptr;
62 };
63 
64 #endif // QGSVALUEMAPSEARCHWIDGETWRAPPER_H
Shows a search widget on a filter form.
virtual QString createExpression(FilterFlags flags) const
Creates a filter expression based on the current state of the search widget and the specified filter ...
#define SIP_TRANSFERTHIS
Definition: qgis_sip.h:46
void setEnabled(bool enabled) override
Toggles whether the search widget is enabled or disabled.
Wraps a value map search widget.
virtual void clearWidget()
Clears the widget&#39;s current value and resets it back to the default 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 bool applyDirectly()=0
If this is true, then this search widget should take effect directly when its expression changes...
virtual QString expression() const =0
Will be used to access the widget&#39;s value.
virtual FilterFlags defaultFlags() const
Returns the filter flags which should be set by default for the search widget.
virtual void setExpression(const QString &expression)=0
Set the expression which is currently used as filter for this widget.
Represents a vector layer which manages a vector based data sets.
virtual FilterFlags supportedFlags() const
Returns filter flags supported by the search widget.