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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtLocation module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 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 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef MAP2D_P_H
#define MAP2D_P_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 "map_p.h"
#include <QVector>
#include <QPair>
#include <QPolygonF>
#include <QSizeF>
#include <QVector3D>
#include <QMatrix4x4>
struct TileMap
{
TileMap(int minY, int maxY);
int size;
int minY;
int maxY;
QVector<int> minX;
QVector<int> maxX;
void adjust(int tileX, int tileY);
};
class IntersectGenerator
{
public:
enum Axis {
XAxis,
YAxis
};
IntersectGenerator(const MapPrivate *mp,
double p1,
double p2,
int t1,
int t2,
Axis axis,
int zoomLevel);
bool hasNext() const;
QPair<double, int> value() const;
void next();
private:
void generateValue();
protected:
const MapPrivate *mp_;
Axis axis_;
int zoomLevel_;
bool hasNext_;
QPair<double, int> value_;
int current_;
int step_;
int end_;
int adjust_;
double first_;
double denom_;
};
class Map2DPrivate : public MapPrivate
{
public:
Map2DPrivate(Map *parent,
TileCache *cache,
int maxZoom,
int tileSize);
virtual ~Map2DPrivate();
virtual QGLSceneNode* createTileNode(const Tile &tile);
virtual void updateGlCamera(QGLCamera* glCamera);
virtual void updateFrustum(Frustum &frustum);
virtual QList<TileSpec> updateVisibleTiles();
virtual void updateMapItemSceneNode(MapItem *item);
virtual QGeoCoordinate screenPositionToCoordinate(const QPointF &pos) const;
virtual QPointF coordinateToScreenPosition(const QGeoCoordinate &coordinate) const;
private:
void tilesFromLine(const QVector3D &p1,
const QVector3D &p2,
const QVector2D &t1,
const QVector2D &t2,
int zoomLevel,
TileMap &map) const;
QList<TileSpec> tilesFromPoints(const QVector<QVector3D> &points, bool roundUp) const;
QList<QVector3D> clipPolygonToMap(const QList<QVector3D> &points) const;
class LengthSorter {
public:
QVector3D base;
bool operator()(const QVector3D &lhs, const QVector3D &rhs) {
return (lhs - base).lengthSquared() < (rhs - base).lengthSquared();
}
};
QList<QVector3D> pointsOnLineWithX(const QVector3D &p1, const QVector3D &p2, double x) const;
QList<QVector3D> pointsOnLineWithY(const QVector3D &p1, const QVector3D &p2, double y) const;
QList<QVector3D> pointsOnLineWithZ(const QVector3D &p1, const QVector3D &p2, double z) const;
QPair<QList<QVector3D>,QList<QVector3D> > splitPolygonX(const QList<QVector3D> &points, double x) const;
QPair<QList<QVector3D>,QList<QVector3D> > splitPolygonY(const QList<QVector3D> &points, double y) const;
int maxZoom_;
int tileSize_;
double baseHeight_;
double sideLength_;
QPolygonF screenPoly_;
QPolygonF screenPolyLeft_;
QPolygonF screenPolyRight_;
QSizeF viewSize_;
QVector3D eye_;
QMatrix4x4 projectionMatrix_;
};
#endif // MAP2D_P_H
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