QGIS API Documentation 3.34.0-Prizren (ffbdd678812)
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qgsquickmaptoscreen.h
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1/***************************************************************************
2 qgsquickmaptoscreen.h
3 ----------------------------------------------------
4 Date : 22.08.2018
5 Copyright : (C) 2018 by Denis Rouzaud
6 Email : denis (at) opengis.ch
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
16#ifndef QGSQUICKMAPTOSCREEN_H
17#define QGSQUICKMAPTOSCREEN_H
18
19#include "qgsquickmapsettings.h"
20
21#include <QObject>
22#include <QPointF>
23#include <qgspoint.h>
24
34class QUICK_EXPORT QgsQuickMapToScreen : public QObject
35{
36 Q_OBJECT
37
39 Q_PROPERTY( QgsQuickMapSettings *mapSettings READ mapSettings WRITE setMapSettings NOTIFY mapSettingsChanged )
40
41
42 Q_PROPERTY( QgsPoint mapPoint READ mapPoint WRITE setMapPoint NOTIFY mapPointChanged )
44 Q_PROPERTY( QPointF screenPoint READ screenPoint NOTIFY screenPointChanged )
45
47 Q_PROPERTY( double mapDistance READ mapDistance WRITE setMapDistance NOTIFY mapDistanceChanged )
49 Q_PROPERTY( double screenDistance READ screenDistance NOTIFY screenDistanceChanged )
50
51 public:
52
54 explicit QgsQuickMapToScreen( QObject *parent = nullptr );
55
57 void setMapSettings( QgsQuickMapSettings *mapSettings );
59 QgsQuickMapSettings *mapSettings() const;
60
62 void setMapPoint( const QgsPoint &point );
64 QgsPoint mapPoint() const;
65
67 void setMapDistance( const double distance );
69 double mapDistance() const;
70
72 QPointF screenPoint() const;
73
75 double screenDistance() const;
76
77 signals:
78
80 void mapSettingsChanged();
82 void mapPointChanged();
84 void mapDistanceChanged();
86 void screenPointChanged();
88 void screenDistanceChanged();
89
90 private slots:
91 void transformPoint();
92 void transformDistance();
93
94 private:
95 QgsQuickMapSettings *mMapSettings = nullptr;
96 QgsPoint mMapPoint = QgsPoint();
97 double mMapDistance = 0.0;
98 QPointF mScreenPoint = QPointF();
99 double mScreenDistance = 0.0;
100};
101
102#endif // QGSQUICKMAPTOSCREEN_H
Point geometry type, with support for z-dimension and m-values.
Definition qgspoint.h:49
The QgsQuickMapSettings class encapsulates QgsMapSettings class to offer settings of configuration of...
The QgsQuickMapToScreen class transform map points to screen coordinates as well as distances from ma...