qgsexpressionbuilderdialog.h

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/***************************************************************************
    qgisexpressionbuilderdialog.h - A generic expression string builder dialog.
     --------------------------------------
    Date                 :  29-May-2011
    Copyright            : (C) 2011 by Nathan Woodrow
    Email                : woodrow.nathan at gmail dot com
 ***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/
 
#ifndef QGSEXPRESSIONBUILDERDIALOG_H
#define QGSEXPRESSIONBUILDERDIALOG_H
 
#include <QDialog>
#include "ui_qgsexpressionbuilderdialogbase.h"
#include "qgshelp.h"
#include "qgis_gui.h"
 
 
class GUI_EXPORT QgsExpressionBuilderDialog : public QDialog, private Ui::QgsExpressionBuilderDialogBase
{
    Q_OBJECT
 
    Q_PROPERTY( bool allowEvalErrors READ allowEvalErrors WRITE setAllowEvalErrors NOTIFY allowEvalErrorsChanged )
 
  public:
    QgsExpressionBuilderDialog( QgsVectorLayer *layer,
                                const QString &startText = QString(),
                                QWidget *parent SIP_TRANSFERTHIS = nullptr,
                                const QString &key = "generic",
                                const QgsExpressionContext &context = QgsExpressionContext() );
 
    QgsExpressionBuilderWidget *expressionBuilder();
 
    void setExpressionText( const QString &text );
 
    QString expressionText();
 
    QString expectedOutputFormat();
 
    void setExpectedOutputFormat( const QString &expected );
 
    QgsExpressionContext expressionContext() const;
 
    void setExpressionContext( const QgsExpressionContext &context );
 
    void setGeomCalculator( const QgsDistanceArea &da );
 
    bool allowEvalErrors() const;
 
    void setAllowEvalErrors( bool allowEvalErrors );
 
  signals:
 
    void allowEvalErrorsChanged();
 
  protected:
 
    void done( int r ) override;
 
    void accept() override;
    void reject() override;
 
  private:
    const QString mInitialText;
    QString mRecentKey;
    bool mAllowEvalErrors = false;
 
  private slots:
    void showHelp();
    void syncOkButtonEnabledState();
 
};
 
// clazy:excludeall=qstring-allocations
 
#endif