qgsquickmapsettings.h

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/***************************************************************************
  qgsquickmapsettings.h
  --------------------------------------
  Date                 : 27.12.2014
  Copyright            : (C) 2014 by Matthias Kuhn
  Email                : matthias (at) opengis.ch
 ***************************************************************************
 *                                                                         *
 *   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 QGSQUICKMAPSETTINGS_H
#define QGSQUICKMAPSETTINGS_H
 
#include "qgis_quick.h"
 
#include <QObject>
 
#include "qgscoordinatetransformcontext.h"
#include "qgsmaplayer.h"
#include "qgsmapsettings.h"
#include "qgsmapthemecollection.h"
#include "qgspoint.h"
#include "qgsrectangle.h"
 
class QgsProject;
 
class QUICK_EXPORT QgsQuickMapSettings : public QObject
{
    Q_OBJECT
 
    Q_PROPERTY( QgsProject *project READ project WRITE setProject NOTIFY projectChanged )
 
    
    Q_PROPERTY( QgsRectangle extent READ extent WRITE setExtent NOTIFY extentChanged )
    Q_PROPERTY( QgsRectangle visibleExtent READ visibleExtent NOTIFY visibleExtentChanged )
    Q_PROPERTY( double mapUnitsPerPixel READ mapUnitsPerPixel NOTIFY mapUnitsPerPixelChanged )
    Q_PROPERTY( double mapUnitsPerPoint READ mapUnitsPerPoint NOTIFY mapUnitsPerPointChanged )
 
    Q_PROPERTY( double rotation READ rotation WRITE setRotation NOTIFY rotationChanged )
 
    Q_PROPERTY( QColor backgroundColor READ backgroundColor WRITE setBackgroundColor NOTIFY backgroundColorChanged )
 
    Q_PROPERTY( QSize outputSize READ outputSize WRITE setOutputSize NOTIFY outputSizeChanged )
 
    Q_PROPERTY( double outputDpi READ outputDpi WRITE setOutputDpi NOTIFY outputDpiChanged )
 
    Q_PROPERTY( QgsCoordinateReferenceSystem destinationCrs READ destinationCrs WRITE setDestinationCrs NOTIFY destinationCrsChanged )
 
    Q_PROPERTY( QList<QgsMapLayer *> layers READ layers WRITE setLayers NOTIFY layersChanged )
 
  public:
    explicit QgsQuickMapSettings( QObject *parent = nullptr );
    ~QgsQuickMapSettings() = default;
 
    QgsMapSettings mapSettings() const;
 
    QgsRectangle extent() const;
 
    void setExtent( const QgsRectangle &extent );
 
    void setProject( QgsProject *project );
 
    QgsProject *project() const;
 
    Q_INVOKABLE void setCenter( const QgsPoint &center );
 
    double mapUnitsPerPixel() const;
 
    Q_INVOKABLE void setCenterToLayer( QgsMapLayer *layer, bool shouldZoom = true );
 
    double mapUnitsPerPoint() const;
 
    QgsRectangle visibleExtent() const;
 
    Q_INVOKABLE QgsCoordinateTransformContext transformContext() const;
 
    Q_INVOKABLE QPointF coordinateToScreen( const QgsPoint &point ) const;
 
    Q_INVOKABLE QgsPoint screenToCoordinate( const QPointF &point ) const;
 
    void setTransformContext( const QgsCoordinateTransformContext &context );
 
    double rotation() const;
 
    void setRotation( double rotation );
 
    QColor backgroundColor() const;
 
    void setBackgroundColor( const QColor &color );
 
    QSize outputSize() const;
 
    void setOutputSize( QSize outputSize );
 
    double outputDpi() const;
 
    void setOutputDpi( double outputDpi );
 
    QgsCoordinateReferenceSystem destinationCrs() const;
 
    void setDestinationCrs( const QgsCoordinateReferenceSystem &destinationCrs );
 
    QList<QgsMapLayer *> layers() const;
 
    void setLayers( const QList<QgsMapLayer *> &layers );
 
    qreal devicePixelRatio() const;
 
 
    void setDevicePixelRatio( const qreal &devicePixelRatio );
 
  signals:
    void projectChanged();
 
    void extentChanged();
 
    void destinationCrsChanged();
 
    void mapUnitsPerPixelChanged();
    void mapUnitsPerPointChanged();
 
    void rotationChanged();
 
    void backgroundColorChanged();
 
    void visibleExtentChanged();
 
    void outputSizeChanged();
 
    void outputDpiChanged();
 
    void layersChanged();
 
    void devicePixelRatioChanged();
 
  private slots:
 
    void onReadProject( const QDomDocument &doc );
 
    void onCrsChanged();
 
  private:
    QgsProject *mProject = nullptr;
    QgsMapSettings mMapSettings;
    qreal mDevicePixelRatio = 1.0;
};
 
#endif // QGSQUICKMAPSETTINGS_H