summaryrefslogtreecommitdiff
path: root/src/location/declarativemaps/qgeomapitemgeometry_p.h
blob: d233978ccf634a48232d28885526eb626d28c9c5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
/****************************************************************************
 **
 ** Copyright (C) 2015 The Qt Company Ltd.
 ** Contact: http://www.qt.io/licensing/
 **
 ** This file is part of the QtLocation module of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:LGPL3$
 ** Commercial License Usage
 ** Licensees holding valid commercial Qt licenses may use this file in
 ** accordance with the commercial license agreement provided with the
 ** Software or, alternatively, in accordance with the terms contained in
 ** a written agreement between you and The Qt Company. For licensing terms
 ** and conditions see http://www.qt.io/terms-conditions. For further
 ** information use the contact form at http://www.qt.io/contact-us.
 **
 ** GNU Lesser General Public License Usage
 ** Alternatively, this file may be used under the terms of the GNU Lesser
 ** General Public License version 3 as published by the Free Software
 ** Foundation and appearing in the file LICENSE.LGPLv3 included in the
 ** packaging of this file. Please review the following information to
 ** ensure the GNU Lesser General Public License version 3 requirements
 ** will be met: https://www.gnu.org/licenses/lgpl.html.
 **
 ** GNU General Public License Usage
 ** Alternatively, this file may be used under the terms of the GNU
 ** General Public License version 2.0 or later as published by the Free
 ** Software Foundation and appearing in the file LICENSE.GPL included in
 ** the packaging of this file. Please review the following information to
 ** ensure the GNU General Public License version 2.0 requirements will be
 ** met: http://www.gnu.org/licenses/gpl-2.0.html.
 **
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/

#ifndef QGEOMAPITEMGEOMETRY_H
#define QGEOMAPITEMGEOMETRY_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include <QtLocation/private/qlocationglobal_p.h>

#include <QPainterPath>
#include <QPointF>
#include <QRectF>
#include <QList>
#include <QGeoCoordinate>
#include <QVector2D>
#include <QList>

QT_BEGIN_NAMESPACE

class QSGGeometry;
class QGeoMap;

class Q_LOCATION_PRIVATE_EXPORT QGeoMapItemGeometry
{
public:
    QGeoMapItemGeometry();
    virtual ~QGeoMapItemGeometry();

    inline bool isSourceDirty() const { return sourceDirty_; }
    inline bool isScreenDirty() const { return screenDirty_; }
    inline void markSourceDirty() { sourceDirty_ = true; screenDirty_ = true; }
    inline void markScreenDirty() { screenDirty_ = true; clipToViewport_ = true; }
    inline void markFullScreenDirty() { screenDirty_ = true; clipToViewport_ = false;}
    inline void markClean() { screenDirty_ = (sourceDirty_ = false); clipToViewport_ = true;}
    inline void clearScreen() { screenDirty_ = false; }

    inline void setPreserveGeometry(bool value, const QGeoCoordinate &geoLeftBound = QGeoCoordinate())
    {
        preserveGeometry_ = value;
        if (preserveGeometry_)
            geoLeftBound_ = geoLeftBound;
    }
    inline QGeoCoordinate geoLeftBound() { return geoLeftBound_; }

    inline QRectF sourceBoundingBox() const { return sourceBounds_; }
    inline QRectF screenBoundingBox() const { return screenBounds_; }
    inline void clearBounds() { sourceBounds_ = screenBounds_ = QRectF(); firstPointOffset_ = QPointF(); }

    inline QPointF firstPointOffset() const { return firstPointOffset_; }
    void translate(const QPointF &offset);

    inline const QGeoCoordinate &origin() const { return srcOrigin_; }

    QPainterPath screenOutline() const {
        return screenOutline_;
    }

    virtual bool contains(const QPointF &screenPoint) const {
        return screenOutline_.contains(screenPoint);
    }

    inline QVector2D vertex(quint32 index) const {
        return QVector2D(screenVertices_[index]);
    }

    inline QList<QPointF> vertices() const { return screenVertices_; }
    inline QList<quint32> indices() const { return screenIndices_; }

    inline bool isIndexed() const { return (!screenIndices_.isEmpty()); }

    /* Size is # of triangles */
    inline quint32 size() const
    {
        if (isIndexed())
            return screenIndices_.size() / 3;
        else
            return screenVertices_.size() / 3;
    }

    inline void clear() { firstPointOffset_ = QPointF(0,0);
                          screenVertices_.clear(); screenIndices_.clear(); }

    void allocateAndFill(QSGGeometry *geom) const;

    double geoDistanceToScreenWidth(const QGeoMap &map,
                                           const QGeoCoordinate &fromCoord,
                                           const QGeoCoordinate &toCoord);

    static QRectF translateToCommonOrigin(const QList<QGeoMapItemGeometry *> &geoms);

    mutable bool m_dataChanged = false;

private:
    QGeoMapItemGeometry(const QGeoMapItemGeometry &other); // Or else it may crash on copy
    QGeoMapItemGeometry &operator= (const QGeoMapItemGeometry & other); // Or else it may crash on copy

protected:
    bool sourceDirty_;
    bool screenDirty_;
    bool clipToViewport_;
    bool preserveGeometry_;
    QGeoCoordinate geoLeftBound_;

    QPointF firstPointOffset_;

    QPainterPath screenOutline_;

    QRectF sourceBounds_;
    QRectF screenBounds_;

    QGeoCoordinate srcOrigin_;

    QList<QPointF> screenVertices_;
    QList<quint32> screenIndices_;
};

QT_END_NAMESPACE

#endif // QGEOMAPITEMGEOMETRY_H