QGIS API Documentation 3.38.0-Grenoble (exported)
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qgsxyzvectortiledataprovider.h
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1/***************************************************************************
2 qgsxyzvectortiledataprovider.h
3 --------------------------------------
4 Date : March 2020
5 Copyright : (C) 2020 by Martin Dobias
6 Email : wonder dot sk at gmail dot com
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 QGSXYZVECTORTILEDATAPROVIDER_H
17#define QGSXYZVECTORTILEDATAPROVIDER_H
18
19#include "qgis_core.h"
20#include "qgis_sip.h"
22#include "qgsprovidermetadata.h"
24
25#define SIP_NO_FILE
26
28
29class CORE_EXPORT QgsXyzVectorTileDataProviderBase : public QgsVectorTileDataProvider
30{
31 Q_OBJECT
32
33 public:
34 QgsXyzVectorTileDataProviderBase( const QString &uri,
35 const QgsDataProvider::ProviderOptions &providerOptions,
37 QgsXyzVectorTileDataProviderBase( const QgsXyzVectorTileDataProviderBase &other );
38
42 QgsXyzVectorTileDataProviderBase &operator=( const QgsXyzVectorTileDataProviderBase &other ) = delete;
43
44 bool supportsAsync() const override;
45 QgsVectorTileRawData readTile( const QgsTileMatrixSet &tileMatrix, const QgsTileXYZ &id, QgsFeedback *feedback = nullptr ) const override;
46 QList<QgsVectorTileRawData> readTiles( const QgsTileMatrixSet &, const QVector<QgsTileXYZ> &tiles, QgsFeedback *feedback = nullptr, Qgis::RendererUsage usage = Qgis::RendererUsage::Unknown ) const override;
47 QNetworkRequest tileRequest( const QgsTileMatrixSet &tileMatrix, const QgsTileXYZ &id, Qgis::RendererUsage usage ) const override;
48
49 protected:
50
51 QString mAuthCfg;
52 QgsHttpHeaders mHeaders;
53
54 private:
55
57 static QByteArray loadFromNetwork( const QgsTileXYZ &id,
58 const QgsTileMatrix &tileMatrix,
59 const QString &requestUrl,
60 const QString &authid,
61 const QgsHttpHeaders &headers,
62 QgsFeedback *feedback = nullptr,
64
65};
66
67class CORE_EXPORT QgsXyzVectorTileDataProvider : public QgsXyzVectorTileDataProviderBase
68{
69 Q_OBJECT
70
71 public:
72 QgsXyzVectorTileDataProvider( const QString &uri,
73 const QgsDataProvider::ProviderOptions &providerOptions,
75 QgsXyzVectorTileDataProvider( const QgsXyzVectorTileDataProvider &other );
76
80 QgsXyzVectorTileDataProvider &operator=( const QgsXyzVectorTileDataProvider &other ) = delete;
81
82 Qgis::DataProviderFlags flags() const override;
83 QString name() const override;
84 QString description() const override;
85 QgsVectorTileDataProvider *clone() const override;
86 QString sourcePath() const override;
87 bool isValid() const override;
88 QgsRectangle extent() const override;
89 QgsCoordinateReferenceSystem crs() const override;
90 const QgsVectorTileMatrixSet &tileMatrixSet() const override;
91
92 static QString XYZ_DATA_PROVIDER_KEY;
93 static QString XYZ_DATA_PROVIDER_DESCRIPTION;
94
95 protected:
96
97 bool mIsValid = false;
98 QgsRectangle mExtent;
99 QgsVectorTileMatrixSet mMatrixSet;
100
101 private:
102
104 static QByteArray loadFromNetwork( const QgsTileXYZ &id,
105 const QgsTileMatrix &tileMatrix,
106 const QString &requestUrl,
107 const QString &authid,
108 const QgsHttpHeaders &headers,
109 QgsFeedback *feedback = nullptr );
110
111};
112
113
114class QgsXyzVectorTileDataProviderMetadata : public QgsProviderMetadata
115{
116 Q_OBJECT
117 public:
118 QgsXyzVectorTileDataProviderMetadata();
119 QgsXyzVectorTileDataProvider *createProvider( const QString &uri, const QgsDataProvider::ProviderOptions &options, QgsDataProvider::ReadFlags flags = QgsDataProvider::ReadFlags() ) override;
120 QIcon icon() const override;
121 ProviderCapabilities providerCapabilities() const override;
122 QVariantMap decodeUri( const QString &uri ) const override;
123 QString encodeUri( const QVariantMap &parts ) const override;
124 QString absoluteToRelativeUri( const QString &uri, const QgsReadWriteContext &context ) const override;
125 QString relativeToAbsoluteUri( const QString &uri, const QgsReadWriteContext &context ) const override;
126 QList< Qgis::LayerType > supportedLayerTypes() const override;
127};
128
129
131
132#endif // QGSXYZVECTORTILEDATAPROVIDER_H
QFlags< DataProviderFlag > DataProviderFlags
Data provider flags.
Definition qgis.h:1947
RendererUsage
Usage of the renderer.
Definition qgis.h:2940
@ Unknown
Renderer used for unknown usage.
This class represents a coordinate reference system (CRS).
virtual QString name() const =0
Returns a provider name.
virtual Qgis::DataProviderFlags flags() const
Returns the generic data provider flags.
virtual QgsCoordinateReferenceSystem crs() const =0
Returns the coordinate system for the data source.
QFlags< ReadFlag > ReadFlags
virtual bool isValid() const =0
Returns true if this is a valid layer.
virtual QString description() const =0
Returns description.
Base class for feedback objects to be used for cancellation of something running in a worker thread.
Definition qgsfeedback.h:44
This class implements simple http header management.
Holds data provider key, description, and associated shared library file or function pointer informat...
virtual QgsProviderMetadata::ProviderCapabilities providerCapabilities() const
Returns the provider's capabilities.
virtual QIcon icon() const
Returns an icon representing the provider.
virtual QgsDataProvider * createProvider(const QString &uri, const QgsDataProvider::ProviderOptions &options, QgsDataProvider::ReadFlags flags=QgsDataProvider::ReadFlags())
Class factory to return a pointer to a newly created QgsDataProvider object.
virtual QString encodeUri(const QVariantMap &parts) const
Reassembles a provider data source URI from its component paths (e.g.
virtual QString absoluteToRelativeUri(const QString &uri, const QgsReadWriteContext &context) const
Converts absolute path(s) to relative path(s) in the given provider-specific URI.
virtual QList< Qgis::LayerType > supportedLayerTypes() const
Returns a list of the map layer types supported by the provider.
virtual QString relativeToAbsoluteUri(const QString &uri, const QgsReadWriteContext &context) const
Converts relative path(s) to absolute path(s) in the given provider-specific URI.
virtual QVariantMap decodeUri(const QString &uri) const
Breaks a provider data source URI into its component paths (e.g.
The class is used as a container of context for various read/write operations on other objects.
A rectangle specified with double values.
Defines a set of tile matrices for multiple zoom levels.
Definition qgstiles.h:250
Defines a matrix of tiles for a single zoom level: it is defined by its size (width *.
Definition qgstiles.h:134
Stores coordinates of a tile in a tile matrix set.
Definition qgstiles.h:38
Base class for vector tile layer data providers.
virtual QString sourcePath() const =0
Returns the source path for the data.
virtual QgsVectorTileDataProvider * clone() const =0
Returns a clone of the data provider.
virtual QList< QgsVectorTileRawData > readTiles(const QgsTileMatrixSet &tileMatrixSet, const QVector< QgsTileXYZ > &tiles, QgsFeedback *feedback=nullptr, Qgis::RendererUsage usage=Qgis::RendererUsage::Unknown) const =0
Returns raw tile data for a range of tiles.
QgsRectangle extent() const override
Returns the extent of the layer.
QgsVectorTileDataProvider & operator=(const QgsVectorTileDataProvider &other)=delete
QgsVectorTileDataProvider cannot be assigned.
virtual const QgsVectorTileMatrixSet & tileMatrixSet() const =0
Returns the tile matrix set associated with the provider.
virtual QgsVectorTileRawData readTile(const QgsTileMatrixSet &tileMatrixSet, const QgsTileXYZ &id, QgsFeedback *feedback=nullptr) const =0
Returns raw tile data for a single tile.
virtual QNetworkRequest tileRequest(const QgsTileMatrixSet &tileMatrixSet, const QgsTileXYZ &id, Qgis::RendererUsage usage) const
Returns a network request for a tile.
virtual bool supportsAsync() const
Returns true if the provider supports async tile reading.
Encapsulates properties of a vector tile matrix set, including tile origins and scaling information.
Keeps track of raw tile data that need to be decoded.
Setting options for creating vector data providers.