qgsvectortileutils.h

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/***************************************************************************
  qgsvectortileutils.h
  --------------------------------------
  Date                 : March 2020
  Copyright            : (C) 2020 by Martin Dobias
  Email                : wonder dot sk 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 QGSVECTORTILEUTILS_H
#define QGSVECTORTILEUTILS_H
 
#include "qgis_core.h"
#include "qgshttpheaders.h"
 
#include <QSet>
#include <QVariantMap>
 
class QPointF;
class QPolygon;
 
class QgsCoordinateTransform;
class QgsFields;
class QgsMapToPixel;
class QgsRectangle;
class QgsVectorLayer;
 
class QgsTileMatrix;
class QgsTileRange;
class QgsTileXYZ;
class QgsVectorTileLayer;
class QgsMapBoxGlStyleConversionContext;

class CORE_EXPORT QgsVectorTileUtils
{
  public:

    static void updateUriSources( QString &uri SIP_INOUT, bool forceUpdate = false );

    static void sortTilesByDistanceFromCenter( QVector<QgsTileXYZ> &tiles, QPointF center );

    static QPolygon tilePolygon( QgsTileXYZ id, const QgsCoordinateTransform &ct, const QgsTileMatrix &tm, const QgsMapToPixel &mtp );

    static QgsFields makeQgisFields( const QSet<QString> &flds );

    static double scaleToZoom( double mapScale, double z0Scale = 559082264.0287178 );

    static int scaleToZoomLevel( double mapScale, int sourceMinZoom, int sourceMaxZoom, double z0Scale = 559082264.0287178 );
    static QgsVectorLayer *makeVectorLayerForTile( QgsVectorTileLayer *mvt, QgsTileXYZ tileID, const QString &layerName );
    static QString formatXYZUrlTemplate( const QString &url, QgsTileXYZ tile, const QgsTileMatrix &tileMatrix );
    static bool checkXYZUrlTemplate( const QString &url );

    static void loadSprites( const QVariantMap &styleDefinition, QgsMapBoxGlStyleConversionContext &context, const QString &styleUrl = QString() );
 
  private:
    static QMap<QString, QString> parseStyleSourceUrl( const QString &styleUrl, const QgsHttpHeaders &headers = QgsHttpHeaders(), const QString &authCfg = QString() );

    static QVariantList parseStyleSourceContentUrl( const QString &sourceUrl, const QgsHttpHeaders &headers = QgsHttpHeaders(), const QString &authCfg = QString() );
 
    friend class TestQgsVectorTileUtils;
 
};
 
#endif // QGSVECTORTILEUTILS_H