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qgsfilterlineedit.h
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1 /***************************************************************************
2  qgsfilterlineedit.h
3  ------------------------
4  begin : October 27, 2012
5  copyright : (C) 2012 by Alexander Bruy
6  email : alexander dot bruy at gmail dot com
7  ***************************************************************************/
8 
9 /***************************************************************************
10  * *
11  * This program is free software; you can redistribute it and/or modify *
12  * it under the terms of the GNU General Public License as published by *
13  * the Free Software Foundation; either version 2 of the License, or *
14  * (at your option) any later version. *
15  * *
16  ***************************************************************************/
17 
18 #ifndef QGSFILTERLINEEDIT_H
19 #define QGSFILTERLINEEDIT_H
20 
21 #include <QLineEdit>
22 
23 class QToolButton;
24 
28 class GUI_EXPORT QgsFilterLineEdit : public QLineEdit
29 {
30  Q_OBJECT
31  Q_PROPERTY( QString nullValue READ nullValue WRITE setNullValue )
32 
33  public:
34  QgsFilterLineEdit( QWidget* parent = 0, QString nullValue = QString::null );
35 
36  void setNullValue( QString nullValue ) { mNullValue = nullValue; }
37 
38  QString nullValue() const {return mNullValue;}
39 
40  signals:
41  void cleared();
42 
43  protected:
44  void resizeEvent( QResizeEvent * );
45  void changeEvent( QEvent * );
46 
47  private slots:
48  void clear();
49  void toggleClearButton( const QString &text );
50 
51  private:
52  QString mNullValue;
53  QToolButton *btnClear;
54 };
55 
56 #endif // QGSFILTERLINEEDIT_H
QString nullValue() const
Definition: qgsfilterlineedit.h:38
Lineedit with builtin clear button.
Definition: qgsfilterlineedit.h:28
void setNullValue(QString nullValue)
Definition: qgsfilterlineedit.h:36