16#ifndef QGSVECTORTILERENDERER_H
17#define QGSVECTORTILERENDERER_H
45 , mRenderZoomLevel( id.zoomLevel() )
79 void setFields(
const QMap<QString, QgsFields> &fields ) { mFields = fields; }
81 QMap<QString, QgsFields>
fields()
const {
return mFields; }
88 QStringList
layers()
const {
return mFeatures.keys(); }
90 QVector<QgsFeature>
layerFeatures(
const QString &layerName )
const {
return mFeatures[layerName]; }
100 int mRenderZoomLevel = -1;
103 QMap<QString, QgsFields> mFields;
107 QPolygon mTilePolygon;
128 const QString type = sipCpp->
type();
130 if ( type == QLatin1String(
"basic" ) )
131 sipType = sipType_QgsVectorTileBasicRenderer;
141 virtual QString
type()
const = 0;
163 virtual QSet< QString >
requiredLayers(
QgsRenderContext &context,
int tileZoom )
const { Q_UNUSED( context ); Q_UNUSED( tileZoom );
return QSet< QString >() << QString(); }
The feature class encapsulates a single feature including its unique ID, geometry and a list of field...
Encapsulates a QGIS project, including sets of map layers and their styles, layouts,...
The class is used as a container of context for various read/write operations on other objects.
Contains information about the context of a rendering operation.
Range of tiles in a tile matrix to be rendered.
Stores coordinates of a tile in a tile matrix set.
Contains decoded features of a single vector tile and any other data necessary for rendering of it.
void setFields(const QMap< QString, QgsFields > &fields)
Sets per-layer fields.
QPolygon tilePolygon() const
Returns polygon (made out of four corners of the tile) in screen coordinates calculated from render c...
QgsVectorTileRendererData(QgsTileXYZ id)
Constructs the object.
QMap< QString, QgsFields > fields() const
Returns per-layer fields.
void setTilePolygon(QPolygon polygon)
Sets polygon of the tile.
QgsVectorTileFeatures features() const
Returns features of the tile grouped by sub-layer names.
void setRenderZoomLevel(int level)
Sets the zoom level corresponding to the target render.
QVector< QgsFeature > layerFeatures(const QString &layerName) const
Returns list of all features within a single sub-layer.
int renderZoomLevel() const
Returns the zoom level corresponding to the target render.
QStringList layers() const
Returns list of layer names present in the tile.
void setFeatures(const QgsVectorTileFeatures &features)
Sets features of the tile.
QgsTileXYZ id() const
Returns coordinates of the tile.
Abstract base class for all vector tile renderer implementations.
virtual void readXml(const QDomElement &elem, const QgsReadWriteContext &context)=0
Reads renderer's properties from given XML element.
virtual void resolveReferences(const QgsProject &project)
Resolves references to other objects - second phase of loading - after readXml()
virtual void renderSelectedFeatures(const QList< QgsFeature > &selection, QgsRenderContext &context)=0
Renders the specified features in a selected state.
virtual QSet< QString > requiredLayers(QgsRenderContext &context, int tileZoom) const
Returns a list of the layers required for rendering.
virtual void renderBackground(QgsRenderContext &context)=0
Renders the background if defined.
virtual QString type() const =0
Returns unique type name of the renderer implementation.
virtual void writeXml(QDomElement &elem, const QgsReadWriteContext &context) const =0
Writes renderer's properties to given XML element.
virtual void renderTile(const QgsVectorTileRendererData &tile, QgsRenderContext &context)=0
Renders given vector tile. Must be called between startRender/stopRender.
virtual QgsVectorTileRenderer * clone() const =0
Returns a clone of the renderer.
virtual QMap< QString, QSet< QString > > usedAttributes(const QgsRenderContext &)
Returns field names of sub-layers that will be used for rendering. Must be called between startRender...
virtual void stopRender(QgsRenderContext &context)=0
Finishes rendering and cleans up any resources.
virtual ~QgsVectorTileRenderer()=default
virtual void startRender(QgsRenderContext &context, int tileZoom, const QgsTileRange &tileRange)=0
Initializes rendering. It should be paired with a stopRender() call.
virtual bool willRenderFeature(const QgsFeature &feature, int tileZoom, const QString &layerName, QgsRenderContext &context)=0
Returns true if the specified feature will be rendered in the given render context.
#define SIP_CONVERT_TO_SUBCLASS_CODE(code)
QMap< QString, QVector< QgsFeature > > QgsVectorTileFeatures
Features of a vector tile, grouped by sub-layer names (key of the map)