qgsextentgroupbox.h

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/***************************************************************************
    qgsextentgroupbox.h
    ---------------------
    begin                : March 2014
    copyright            : (C) 2014 by Martin Dobias
    email                : wonder dot sk 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 QGSEXTENTGROUPBOX_H
#define QGSEXTENTGROUPBOX_H
 
#include "qgscollapsiblegroupbox.h"
#include "qgis_sip.h"
 
#include "qgscoordinatereferencesystem.h"
#include "qgsrectangle.h"
#include "qgis_gui.h"
 
#include <memory>
 
class QgsCoordinateReferenceSystem;
class QgsMapLayer;
class QgsExtentWidget;
class QgsMapCanvas;
 
class GUI_EXPORT QgsExtentGroupBox : public QgsCollapsibleGroupBox
{
    Q_OBJECT
    Q_PROPERTY( QString titleBase READ titleBase WRITE setTitleBase )
 
  public:
 
    // TODO QGIS 4.0 -- use QgsExtentWidget enum instead
 
    enum ExtentState
    {
      OriginalExtent,  
      CurrentExtent,   
      UserExtent,      
      ProjectLayerExtent, 
      DrawOnCanvas, 
    };
 
    explicit QgsExtentGroupBox( QWidget *parent SIP_TRANSFERTHIS = nullptr );
 
    void setOriginalExtent( const QgsRectangle &originalExtent, const QgsCoordinateReferenceSystem &originalCrs );
 
    QgsRectangle originalExtent() const;
 
    QgsCoordinateReferenceSystem originalCrs() const;
 
    void setCurrentExtent( const QgsRectangle &currentExtent, const QgsCoordinateReferenceSystem &currentCrs );
 
    QgsRectangle currentExtent() const;
 
    QgsCoordinateReferenceSystem currentCrs() const;
 
    void setOutputCrs( const QgsCoordinateReferenceSystem &outputCrs );
 
    QgsRectangle outputExtent() const;
 
    QgsCoordinateReferenceSystem outputCrs() const;
 
    QgsExtentGroupBox::ExtentState extentState() const;
 
    void setTitleBase( const QString &title );
 
    QString titleBase() const;
 
    void setMapCanvas( QgsMapCanvas *canvas );
 
    QSize ratio() const;
 
  public slots:
 
    void setOutputExtentFromOriginal();
 
    void setOutputExtentFromCurrent();
 
    void setOutputExtentFromUser( const QgsRectangle &extent, const QgsCoordinateReferenceSystem &crs );
 
    void setOutputExtentFromLayer( const QgsMapLayer *layer );
 
    void setOutputExtentFromDrawOnCanvas();
 
    void setRatio( QSize ratio );
 
  signals:
 
    void extentChanged( const QgsRectangle &r );
 
  private slots:
 
    void groupBoxClicked();
 
    void widgetExtentChanged();
 
    void validationChanged( bool valid );
 
  private:
    void updateTitle();
 
    QgsExtentWidget *mWidget = nullptr;
 
    QString mTitleBase;
 
};
 
#endif // QGSEXTENTGROUPBOX_H