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qgsexpressionbuilderdialog.cpp
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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 
17 #include <QSettings>
18 
19 QgsExpressionBuilderDialog::QgsExpressionBuilderDialog( QgsVectorLayer* layer, QString startText, QWidget* parent, QString key )
20  : QDialog( parent ), mRecentKey( key )
21 {
22  setupUi( this );
23 
24  QPushButton* okButton = buttonBox->button( QDialogButtonBox::Ok );
25  connect( builder, SIGNAL( expressionParsed( bool ) ), okButton, SLOT( setEnabled( bool ) ) );
26 
27  builder->setLayer( layer );
28  builder->setExpressionText( startText );
29  builder->loadFieldNames();
30  builder->loadRecent( mRecentKey );
31 
32  QSettings settings;
33  restoreGeometry( settings.value( "/Windows/ExpressionBuilderDialog/geometry" ).toByteArray() );
34 }
35 
37 {
38  return builder;
39 }
40 
42 {
43  builder->setExpressionText( text );
44 }
45 
47 {
48  return builder->expressionText();
49 }
50 
52 {
53  QDialog::done( r );
54 
55  QSettings settings;
56  settings.setValue( "/Windows/ExpressionBuilderDialog/geometry", saveGeometry() );
57 }
58 
60 {
61  builder->saveToRecent( mRecentKey );
62  QDialog::accept();
63 }
64 
66 {
67  // Store in child widget only.
68  builder->setGeomCalculator( da );
69 }
void setExpressionText(const QString &text)
virtual void done(int r)
Is called when the dialog get accepted or rejected Used to save geometry.
QgsExpressionBuilderWidget * expressionBuilder()
The builder widget that is used by the dialog.
void setGeomCalculator(const QgsDistanceArea &da)
Sets geometry calculator used in distance/area calculations.
QgsExpressionBuilderDialog(QgsVectorLayer *layer, QString startText=QString(), QWidget *parent=NULL, QString key="generic")
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.