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qgsexpressionbuilderdialog.h
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1 /***************************************************************************
2  qgisexpressionbuilderdialog.h - A genric expression string builder dialog.
3  --------------------------------------
4  Date : 29-May-2011
5  Copyright : (C) 2011 by Nathan Woodrow
6  Email : woodrow.nathan 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 QGSEXPRESSIONBUILDERDIALOG_H
17 #define QGSEXPRESSIONBUILDERDIALOG_H
18 
19 #include <QDialog>
20 #include "qgsdistancearea.h"
21 #include "ui_qgsexpressionbuilderdialogbase.h"
22 
26 class GUI_EXPORT QgsExpressionBuilderDialog : public QDialog, private Ui::QgsExpressionBuilderDialogBase
27 {
28  public:
29  QgsExpressionBuilderDialog( QgsVectorLayer* layer, QString startText = QString(), QWidget* parent = NULL, QString key = "generic",
30  const QgsExpressionContext& context = QgsExpressionContext() );
31 
33  QgsExpressionBuilderWidget* expressionBuilder();
34 
35  void setExpressionText( const QString& text );
36 
37  QString expressionText();
38 
44  QgsExpressionContext expressionContext() const;
45 
52  void setExpressionContext( const QgsExpressionContext& context );
53 
55  void setGeomCalculator( const QgsDistanceArea & da );
56 
57  protected:
64  virtual void done( int r ) override;
65 
66  virtual void accept() override;
67 
68  private:
69  QString mRecentKey;
70 };
71 
72 #endif
virtual void done(int r)
Expression contexts are used to encapsulate the parameters around which a QgsExpression should be eva...
virtual void accept()
General purpose distance and area calculator.
A reusable widget that can be used to build a expression string.
Represents a vector layer which manages a vector based data sets.
A generic dialog for building expression strings.