qgsquickscalebarkit.h

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/***************************************************************************
  qgsquickscalebarkit.h
  --------------------------------------
  Date                 : Nov 2017
  Copyright            : (C) 2017 by Peter Petrik
  Email                : zilolv 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 QGSQUICKSCALEBARKIT_H
#define QGSQUICKSCALEBARKIT_H
 
#include <QObject>
#include <QString>
 
#include "qgis_quick.h"
#include "qgsquickutils.h"
 
class QgsQuickMapSettings;
 
class QUICK_EXPORT QgsQuickScaleBarKit : public QObject
{
    Q_OBJECT
 
    Q_PROPERTY( QgsQuickMapSettings *mapSettings MEMBER mMapSettings WRITE setMapSettings NOTIFY mapSettingsChanged )
 
    
    Q_PROPERTY( int preferredWidth MEMBER mPreferredWidth NOTIFY preferredWidthChanged )
 
    
    Q_PROPERTY( QgsUnitTypes::SystemOfMeasurement systemOfMeasurement MEMBER mSystemOfMeasurement NOTIFY systemOfMeasurementChanged )
 
    
    Q_PROPERTY( QString units READ units NOTIFY scaleBarChanged )
 
    
    Q_PROPERTY( int distance READ distance NOTIFY scaleBarChanged )
 
    
    Q_PROPERTY( int width READ width NOTIFY scaleBarChanged )
 
  public:
    explicit QgsQuickScaleBarKit( QObject *parent = nullptr );
    ~QgsQuickScaleBarKit() = default;
 
    void setMapSettings( QgsQuickMapSettings *mapSettings );
 
    int width() const;
 
    int distance() const;
 
    QString units() const;
 
  signals:
 
    void scaleBarChanged();
 
    void mapSettingsChanged();
 
    void preferredWidthChanged();
 
    void systemOfMeasurementChanged();
 
  public slots:
    void updateScaleBar();
 
  private:
    QgsQuickMapSettings *mMapSettings = nullptr; // not owned
    int mPreferredWidth; // pixels
    int mWidth; // pixels
    int mDistance; // in meters or kilometers, rounded
    QString mUnits; // e.g. km or m
    QgsUnitTypes::SystemOfMeasurement mSystemOfMeasurement = QgsUnitTypes::MetricSystem;
};
 
 
#endif // QGSQUICKSCALEBARKIT_H