QGIS API Documentation 3.40.0-Bratislava (b56115d8743)
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Represents a map layer containing a set of georeferenced annotations, e.g. More...
#include <qgsannotationlayer.h>
Classes | |
struct | LayerOptions |
Setting options for loading annotation layers. More... | |
Public Member Functions | |
QgsAnnotationLayer (const QString &name, const QgsAnnotationLayer::LayerOptions &options) | |
Constructor for a new QgsAnnotationLayer with the specified layer name. | |
~QgsAnnotationLayer () override | |
QString | addItem (QgsAnnotationItem *item) |
Adds an item to the layer. | |
Q_DECL_DEPRECATED Qgis::AnnotationItemEditOperationResult | applyEdit (QgsAbstractAnnotationItemEditOperation *operation) |
Applies an edit operation to the layer. | |
Qgis::AnnotationItemEditOperationResult | applyEditV2 (QgsAbstractAnnotationItemEditOperation *operation, const QgsAnnotationItemEditContext &context) |
Applies an edit operation to the layer. | |
void | clear () |
Removes all items from the layer. | |
QgsAnnotationLayer * | clone () const override |
Returns a new instance equivalent to this one except for the id which is still unique. | |
QgsMapLayerRenderer * | createMapRenderer (QgsRenderContext &rendererContext) override |
Returns new instance of QgsMapLayerRenderer that will be used for rendering of given context. | |
const QgsDataProvider * | dataProvider () const override |
Returns the layer's data provider in a const-correct manner, it may be nullptr . | |
QgsDataProvider * | dataProvider () override |
Returns the layer's data provider, it may be nullptr . | |
QgsRectangle | extent () const override |
Returns the extent of the layer. | |
QString | htmlMetadata () const override |
Obtain a formatted HTML string containing assorted metadata for this layer. | |
bool | isEditable () const override |
Returns true if the layer can be edited. | |
bool | isEmpty () const |
Returns true if the annotation layer is empty and contains no annotations. | |
QgsAnnotationItem * | item (const QString &id) const |
Returns the item with the specified id, or nullptr if no matching item was found. | |
QMap< QString, QgsAnnotationItem * > | items () const |
Returns a map of items contained in the layer, by unique item ID. | |
QStringList | itemsInBounds (const QgsRectangle &bounds, QgsRenderContext &context, QgsFeedback *feedback=nullptr) const |
Returns a list of the IDs of all annotation items within the specified bounds (in layer CRS), when rendered using the given render context. | |
QgsMapLayer * | linkedVisibilityLayer () |
Returns a linked layer, where the items in this annotation layer will only be visible when the linked layer is also visible. | |
QgsPaintEffect * | paintEffect () const |
Returns the current paint effect for the layer. | |
Qgis::MapLayerProperties | properties () const override |
Returns the map layer properties of this layer. | |
bool | readStyle (const QDomNode &node, QString &errorMessage, QgsReadWriteContext &context, StyleCategories categories) override |
Read the style for the current layer from the DOM node supplied. | |
bool | readSymbology (const QDomNode &node, QString &errorMessage, QgsReadWriteContext &context, StyleCategories categories=AllStyleCategories) override |
Read the symbology for the current layer from the DOM node supplied. | |
bool | readXml (const QDomNode &layerNode, QgsReadWriteContext &context) override |
Called by readLayerXML(), used by children to read state specific to them from project files. | |
bool | removeItem (const QString &id) |
Removes (and deletes) the item with matching id. | |
void | replaceItem (const QString &id, QgsAnnotationItem *item) |
Replaces the existing item with matching id with a new item. | |
void | reset () |
Resets the annotation layer to a default state, and clears all items from it. | |
void | resolveReferences (QgsProject *project) override |
Resolve references to other layers (kept as layer IDs after reading XML) into layer objects. | |
void | setLinkedVisibilityLayer (QgsMapLayer *layer) |
Sets a linked layer, where the items in this annotation layer will only be visible when the linked layer is also visible. | |
void | setPaintEffect (QgsPaintEffect *effect) |
Sets the current paint effect for the layer. | |
void | setTransformContext (const QgsCoordinateTransformContext &context) override |
Sets the coordinate transform context to transformContext. | |
bool | supportsEditing () const override |
Returns whether the layer supports editing or not. | |
bool | writeStyle (QDomNode &node, QDomDocument &doc, QString &errorMessage, const QgsReadWriteContext &context, StyleCategories categories) const override |
Write just the symbology information for the layer into the document. | |
bool | writeSymbology (QDomNode &node, QDomDocument &doc, QString &errorMessage, const QgsReadWriteContext &, StyleCategories categories=AllStyleCategories) const override |
Write the style for the layer into the document provided. | |
bool | writeXml (QDomNode &layer_node, QDomDocument &doc, const QgsReadWriteContext &context) const override |
Called by writeLayerXML(), used by children to write state specific to them to project files. | |
Public Member Functions inherited from QgsMapLayer | |
QgsMapLayer (const QgsMapLayer &)=delete | |
QgsMapLayer (Qgis::LayerType type=Qgis::LayerType::Vector, const QString &name=QString(), const QString &source=QString()) | |
Constructor for QgsMapLayer. | |
~QgsMapLayer () override | |
Q_DECL_DEPRECATED QString | abstract () const |
Returns the abstract of the layer used by QGIS Server in GetCapabilities request. | |
virtual bool | accept (QgsStyleEntityVisitorInterface *visitor) const |
Accepts the specified symbology visitor, causing it to visit all symbols associated with the layer. | |
Q_DECL_DEPRECATED QString | attribution () const |
Returns the attribution of the layer used by QGIS Server in GetCapabilities request. | |
Q_DECL_DEPRECATED QString | attributionUrl () const |
Returns the attribution URL of the layer used by QGIS Server in GetCapabilities request. | |
int | autoRefreshInterval () const |
Returns the auto refresh interval (in milliseconds). | |
Qgis::AutoRefreshMode | autoRefreshMode () const |
Returns the layer's automatic refresh mode. | |
QPainter::CompositionMode | blendMode () const |
Returns the current blending mode for a layer. | |
QgsCoordinateReferenceSystem | crs () const |
Returns the layer's spatial reference system. | |
QgsCoordinateReferenceSystem | crs3D () const |
Returns the CRS to use for the layer when transforming 3D data, or when z/elevation value handling is important. | |
template<class T > | |
T | customEnumProperty (const QString &key, const T &defaultValue) |
Returns the property value for a property based on an enum. | |
template<class T > | |
T | customFlagProperty (const QString &key, const T &defaultValue) |
Returns the property value for a property based on a flag. | |
const QgsObjectCustomProperties & | customProperties () const |
Read all custom properties from layer. | |
Q_INVOKABLE QVariant | customProperty (const QString &value, const QVariant &defaultValue=QVariant()) const |
Read a custom property from layer. | |
Q_INVOKABLE QStringList | customPropertyKeys () const |
Returns list of all keys within custom properties. | |
Q_DECL_DEPRECATED QString | dataUrl () const |
Returns the DataUrl of the layer used by QGIS Server in GetCapabilities request. | |
Q_DECL_DEPRECATED QString | dataUrlFormat () const |
Returns the DataUrl format of the layer used by QGIS Server in GetCapabilities request. | |
virtual bool | deleteStyleFromDatabase (const QString &styleId, QString &msgError) |
Deletes a style from the database. | |
virtual QSet< QgsMapLayerDependency > | dependencies () const |
Gets the list of dependencies. | |
virtual QgsMapLayerElevationProperties * | elevationProperties () |
Returns the layer's elevation properties. | |
virtual QgsError | error () const |
Gets current status error. | |
void | exportNamedMetadata (QDomDocument &doc, QString &errorMsg) const |
Export the current metadata of this layer as named metadata in a QDomDocument. | |
virtual void | exportNamedStyle (QDomDocument &doc, QString &errorMsg, const QgsReadWriteContext &context=QgsReadWriteContext(), QgsMapLayer::StyleCategories categories=QgsMapLayer::AllStyleCategories) const |
Export the properties of this layer as named style in a QDomDocument. | |
virtual void | exportSldStyle (QDomDocument &doc, QString &errorMsg) const |
Export the properties of this layer as SLD style in a QDomDocument. | |
virtual void | exportSldStyleV2 (QDomDocument &doc, QString &errorMsg, const QgsSldExportContext &exportContext) const |
Export the properties of this layer as SLD style in a QDomDocument. | |
virtual QgsBox3D | extent3D () const |
Returns the 3D extent of the layer. | |
QgsMapLayer::LayerFlags | flags () const |
Returns the flags for this layer. | |
virtual QString | getStyleFromDatabase (const QString &styleId, QString &msgError) |
Returns the named style corresponding to style id provided. | |
Q_DECL_DEPRECATED bool | hasAutoRefreshEnabled () const |
Returns true if auto refresh is enabled for the layer. | |
virtual bool | hasMapTips () const |
Returns true if the layer contains map tips. | |
bool | hasScaleBasedVisibility () const |
Returns whether scale based visibility is enabled for the layer. | |
QString | id () const |
Returns the layer's unique ID, which is used to access this layer from QgsProject. | |
bool | importNamedMetadata (QDomDocument &document, QString &errorMessage) |
Import the metadata of this layer from a QDomDocument. | |
virtual bool | importNamedStyle (QDomDocument &doc, QString &errorMsg, QgsMapLayer::StyleCategories categories=QgsMapLayer::AllStyleCategories) |
Import the properties of this layer from a QDomDocument. | |
bool | isInScaleRange (double scale) const |
Tests whether the layer should be visible at the specified scale. | |
virtual bool | isModified () const |
Returns true if the layer has been modified since last commit/save. | |
bool | isRefreshOnNotifyEnabled () const |
Returns true if the refresh on provider nofification is enabled. | |
virtual bool | isSpatial () const |
Returns true if the layer is considered a spatial layer, ie it has some form of geometry associated with it. | |
virtual bool | isTemporary () const |
Returns true if the layer is considered a temporary layer. | |
bool | isValid () const |
Returns the status of the layer. | |
Q_DECL_DEPRECATED QString | keywordList () const |
Returns the keyword list of the layer used by QGIS Server in GetCapabilities request. | |
QgsMapLayerLegend * | legend () const |
Can be nullptr . | |
QString | legendPlaceholderImage () const |
Returns path to the placeholder image or an empty string if a generated legend is shown. | |
QString | legendUrl () const |
Returns the URL for the layer's legend. | |
QString | legendUrlFormat () const |
Returns the format for a URL based layer legend. | |
virtual int | listStylesInDatabase (QStringList &ids, QStringList &names, QStringList &descriptions, QString &msgError) |
Lists all the style in db split into related to the layer and not related to. | |
virtual QString | loadDefaultMetadata (bool &resultFlag) |
Retrieve the default metadata for this layer if one exists (either as a .qmd file on disk or as a record in the users metadata table in their personal qgis.db) | |
virtual QString | loadDefaultStyle (bool &resultFlag) |
Retrieve the default style for this layer if one exists (either as a .qml file on disk or as a record in the users style table in their personal qgis.db) | |
virtual QString | loadNamedMetadata (const QString &uri, bool &resultFlag) |
Retrieve a named metadata for this layer if one exists (either as a .qmd file on disk or as a record in the users style table in their personal qgis.db) | |
bool | loadNamedMetadataFromDatabase (const QString &db, const QString &uri, QString &qmd) |
Retrieve a named metadata for this layer from a sqlite database. | |
virtual QString | loadNamedStyle (const QString &theURI, bool &resultFlag, bool loadFromLocalDb, QgsMapLayer::StyleCategories categories=QgsMapLayer::AllStyleCategories, Qgis::LoadStyleFlags flags=Qgis::LoadStyleFlags()) |
Loads a named style from file/local db/datasource db. | |
virtual QString | loadNamedStyle (const QString &uri, bool &resultFlag, QgsMapLayer::StyleCategories categories=QgsMapLayer::AllStyleCategories, Qgis::LoadStyleFlags flags=Qgis::LoadStyleFlags()) |
Retrieve a named style for this layer if one exists (either as a .qml file on disk or as a record in the users style table in their personal qgis.db) | |
virtual bool | loadNamedStyleFromDatabase (const QString &db, const QString &uri, QString &qml) |
Retrieve a named style for this layer from a sqlite database. | |
virtual QString | loadSldStyle (const QString &uri, bool &resultFlag) |
Attempts to style the layer using the formatting from an SLD type file. | |
bool | mapTipsEnabled () const |
Returns true if map tips are enabled for this layer. | |
QString | mapTipTemplate () const |
The mapTip is a pretty, html representation for feature information. | |
double | maximumScale () const |
Returns the maximum map scale (i.e. | |
virtual const QgsLayerMetadata & | metadata () const |
Returns a reference to the layer's metadata store. | |
virtual QString | metadataUri () const |
Retrieve the metadata URI for this layer (either as a .qmd file on disk or as a record in the users style table in their personal qgis.db) | |
Q_DECL_DEPRECATED QString | metadataUrl () const |
Returns the metadata URL of the layer used by QGIS Server in GetCapabilities request. | |
Q_DECL_DEPRECATED QString | metadataUrlFormat () const |
Returns the metadata format of the layer used by QGIS Server in GetCapabilities request. | |
Q_DECL_DEPRECATED QString | metadataUrlType () const |
Returns the metadata type of the layer used by QGIS Server in GetCapabilities request. | |
double | minimumScale () const |
Returns the minimum map scale (i.e. | |
QString | name () const |
Returns the display name of the layer. | |
virtual double | opacity () const |
Returns the opacity for the layer, where opacity is a value between 0 (totally transparent) and 1.0 (fully opaque). | |
QgsMapLayer & | operator= (const QgsMapLayer &)=delete |
QString | originalXmlProperties () const |
Returns the XML properties of the original layer as they were when the layer was first read from the project file. | |
QgsProviderMetadata * | providerMetadata () const |
Returns the layer data provider's metadata, it may be nullptr . | |
QString | providerType () const |
Returns the provider type (provider key) for this layer. | |
QString | publicSource (bool hidePassword=false) const |
Gets a version of the internal layer definition that has sensitive bits removed (for example, the password). | |
bool | readLayerXml (const QDomElement &layerElement, QgsReadWriteContext &context, QgsMapLayer::ReadFlags flags=QgsMapLayer::ReadFlags(), QgsDataProvider *preloadedProvider=nullptr) |
Sets state from DOM document. | |
bool | readOnly () const |
Returns if this layer is read only. | |
virtual bool | readSld (const QDomNode &node, QString &errorMessage) |
QString | refreshOnNotifyMessage () const |
Returns the message that should be notified by the provider to triggerRepaint. | |
virtual Q_INVOKABLE void | reload () |
Synchronises with changes in the datasource. | |
void | removeCustomProperty (const QString &key) |
Remove a custom property from layer. | |
QgsAbstract3DRenderer * | renderer3D () const |
Returns 3D renderer associated with the layer. | |
virtual QString | saveDefaultMetadata (bool &resultFlag) |
Save the current metadata of this layer as the default metadata (either as a .qmd file on disk or as a record in the users style table in their personal qgis.db) | |
virtual Q_DECL_DEPRECATED QString | saveDefaultStyle (bool &resultFlag) |
Save the properties of this layer as the default style (either as a .qml file on disk or as a record in the users style table in their personal qgis.db) | |
virtual QString | saveDefaultStyle (bool &resultFlag, StyleCategories categories) |
Save the properties of this layer as the default style (either as a .qml file on disk or as a record in the users style table in their personal qgis.db) | |
QString | saveNamedMetadata (const QString &uri, bool &resultFlag) |
Save the current metadata of this layer as a named metadata (either as a .qmd file on disk or as a record in the users style table in their personal qgis.db) | |
virtual QString | saveNamedStyle (const QString &uri, bool &resultFlag, StyleCategories categories=AllStyleCategories) |
Save the properties of this layer as a named style (either as a .qml file on disk or as a record in the users style table in their personal qgis.db) | |
virtual QString | saveSldStyle (const QString &uri, bool &resultFlag) const |
Saves the properties of this layer to an SLD format file. | |
virtual QString | saveSldStyleV2 (bool &resultFlag, const QgsSldExportContext &exportContext) const |
Saves the properties of this layer to an SLD format file. | |
virtual void | saveStyleToDatabase (const QString &name, const QString &description, bool useAsDefault, const QString &uiFileContent, QString &msgError, QgsMapLayer::StyleCategories categories=QgsMapLayer::AllStyleCategories) |
Saves named and sld style of the layer to the style table in the db. | |
virtual QgsMapLayerSelectionProperties * | selectionProperties () |
Returns the layer's selection properties. | |
QgsMapLayerServerProperties * | serverProperties () |
Returns QGIS Server Properties for the map layer. | |
const QgsMapLayerServerProperties * | serverProperties () const |
Returns QGIS Server Properties const for the map layer. | |
Q_DECL_DEPRECATED void | setAbstract (const QString &abstract) |
Sets the abstract of the layer used by QGIS Server in GetCapabilities request. | |
Q_DECL_DEPRECATED void | setAttribution (const QString &attrib) |
Sets the attribution of the layerused by QGIS Server in GetCapabilities request. | |
Q_DECL_DEPRECATED void | setAttributionUrl (const QString &attribUrl) |
Sets the attribution URL of the layer used by QGIS Server in GetCapabilities request. | |
Q_DECL_DEPRECATED void | setAutoRefreshEnabled (bool enabled) |
Sets whether auto refresh is enabled for the layer. | |
void | setAutoRefreshInterval (int interval) |
Sets the auto refresh interval (in milliseconds) for the layer. | |
void | setAutoRefreshMode (Qgis::AutoRefreshMode mode) |
Sets the automatic refresh mode for the layer. | |
void | setBlendMode (QPainter::CompositionMode blendMode) |
Set the blending mode used for rendering a layer. | |
void | setCrs (const QgsCoordinateReferenceSystem &srs, bool emitSignal=true) |
Sets layer's spatial reference system. | |
template<class T > | |
void | setCustomEnumProperty (const QString &key, const T &value) |
Set the value of a property based on an enum. | |
template<class T > | |
void | setCustomFlagProperty (const QString &key, const T &value) |
Set the value of a property based on a flag. | |
void | setCustomProperties (const QgsObjectCustomProperties &properties) |
Set custom properties for layer. | |
Q_INVOKABLE void | setCustomProperty (const QString &key, const QVariant &value) |
Set a custom property for layer. | |
void | setDataSource (const QString &dataSource, const QString &baseName, const QString &provider, const QgsDataProvider::ProviderOptions &options, bool loadDefaultStyleFlag=false) |
Updates the data source of the layer. | |
void | setDataSource (const QString &dataSource, const QString &baseName, const QString &provider, const QgsDataProvider::ProviderOptions &options, Qgis::DataProviderReadFlags flags) |
Updates the data source of the layer. | |
void | setDataSource (const QString &dataSource, const QString &baseName=QString(), const QString &provider=QString(), bool loadDefaultStyleFlag=false) |
Updates the data source of the layer. | |
Q_DECL_DEPRECATED void | setDataUrl (const QString &dataUrl) |
Sets the DataUrl of the layer used by QGIS Server in GetCapabilities request. | |
Q_DECL_DEPRECATED void | setDataUrlFormat (const QString &dataUrlFormat) |
Sets the DataUrl format of the layer used by QGIS Server in GetCapabilities request. | |
void | setFlags (QgsMapLayer::LayerFlags flags) |
Returns the flags for this layer. | |
bool | setId (const QString &id) |
Sets the layer's id. | |
Q_DECL_DEPRECATED void | setKeywordList (const QString &keywords) |
Sets the keyword list of the layerused by QGIS Server in GetCapabilities request. | |
virtual void | setLayerOrder (const QStringList &layers) |
Reorders the previously selected sublayers of this layer from bottom to top. | |
void | setLegend (QgsMapLayerLegend *legend) |
Assign a legend controller to the map layer. | |
void | setLegendPlaceholderImage (const QString &imgPath) |
Set placeholder image for legend. | |
void | setLegendUrl (const QString &legendUrl) |
Sets the URL for the layer's legend. | |
void | setLegendUrlFormat (const QString &legendUrlFormat) |
Sets the format for a URL based layer legend. | |
void | setMapTipsEnabled (bool enabled) |
Enable or disable map tips for this layer. | |
void | setMapTipTemplate (const QString &mapTipTemplate) |
The mapTip is a pretty, html representation for feature information. | |
virtual void | setMetadata (const QgsLayerMetadata &metadata) |
Sets the layer's metadata store. | |
Q_DECL_DEPRECATED void | setMetadataUrl (const QString &metaUrl) |
Sets the metadata URL of the layer used by QGIS Server in GetCapabilities request. | |
Q_DECL_DEPRECATED void | setMetadataUrlFormat (const QString &metaUrlFormat) |
Sets the metadata format of the layer used by QGIS Server in GetCapabilities request. | |
Q_DECL_DEPRECATED void | setMetadataUrlType (const QString &metaUrlType) |
Set the metadata type of the layer used by QGIS Server in GetCapabilities request MetadataUrlType indicates the standard to which the metadata complies. | |
void | setName (const QString &name) |
Set the display name of the layer. | |
virtual void | setOpacity (double opacity) |
Sets the opacity for the layer, where opacity is a value between 0 (totally transparent) and 1.0 (fully opaque). | |
void | setOriginalXmlProperties (const QString &originalXmlProperties) |
Sets the original XML properties for the layer to originalXmlProperties. | |
void | setRenderer3D (QgsAbstract3DRenderer *renderer) |
Sets 3D renderer for the layer. | |
Q_DECL_DEPRECATED void | setShortName (const QString &shortName) |
Sets the short name of the layer used by QGIS Server to identify the layer. | |
virtual void | setSubLayerVisibility (const QString &name, bool visible) |
Set the visibility of the given sublayer name. | |
Q_DECL_DEPRECATED void | setTitle (const QString &title) |
Sets the title of the layer used by QGIS Server in GetCapabilities request. | |
bool | setVerticalCrs (const QgsCoordinateReferenceSystem &crs, QString *errorMessage=nullptr) |
Sets the layer's vertical coordinate reference system. | |
Q_DECL_DEPRECATED QString | shortName () const |
Returns the short name of the layer used by QGIS Server to identify the layer. | |
QString | source () const |
Returns the source for the layer. | |
QgsMapLayerStyleManager * | styleManager () const |
Gets access to the layer's style manager. | |
virtual QString | styleURI () const |
Retrieve the style URI for this layer (either as a .qml file on disk or as a record in the users style table in their personal qgis.db) | |
virtual QStringList | subLayers () const |
Returns the sublayers of this layer. | |
virtual QgsMapLayerTemporalProperties * | temporalProperties () |
Returns the layer's temporal properties. | |
virtual QDateTime | timestamp () const |
Time stamp of data source in the moment when data/metadata were loaded by provider. | |
Q_DECL_DEPRECATED QString | title () const |
Returns the title of the layer used by QGIS Server in GetCapabilities request. | |
QgsCoordinateTransformContext | transformContext () const |
Returns the layer data provider coordinate transform context or a default transform context if the layer does not have a valid data provider. | |
Qgis::LayerType | type () const |
Returns the type of the layer. | |
QUndoStack * | undoStack () |
Returns pointer to layer's undo stack. | |
QUndoStack * | undoStackStyles () |
Returns pointer to layer's style undo stack. | |
QgsCoordinateReferenceSystem | verticalCrs () const |
Returns the layer's vertical coordinate reference system. | |
QgsRectangle | wgs84Extent (bool forceRecalculate=false) const |
Returns the WGS84 extent (EPSG:4326) of the layer according to ReadFlag::FlagTrustLayerMetadata. | |
bool | writeLayerXml (QDomElement &layerElement, QDomDocument &document, const QgsReadWriteContext &context) const |
Stores state in DOM node. | |
Friends | |
class | QgsAnnotationLayerRenderer |
Additional Inherited Members | |
Public Types inherited from QgsMapLayer | |
enum | LayerFlag { Identifiable = 1 << 0 , Removable = 1 << 1 , Searchable = 1 << 2 , Private = 1 << 3 } |
Flags for the map layer. More... | |
typedef QFlags< LayerFlag > | LayerFlags |
enum | PropertyType { Style = 0 , Metadata } |
Maplayer has a style and a metadata property. More... | |
enum | ReadFlag { FlagDontResolveLayers = 1 << 0 , FlagTrustLayerMetadata = 1 << 1 , FlagReadExtentFromXml = 1 << 2 , FlagForceReadOnly = 1 << 3 } |
Flags which control project read behavior. More... | |
typedef QFlags< ReadFlag > | ReadFlags |
typedef QFlags< StyleCategory > | StyleCategories |
enum | StyleCategory { LayerConfiguration = 1 << 0 , Symbology = 1 << 1 , Symbology3D = 1 << 2 , Labeling = 1 << 3 , Fields = 1 << 4 , Forms = 1 << 5 , Actions = 1 << 6 , MapTips = 1 << 7 , Diagrams = 1 << 8 , AttributeTable = 1 << 9 , Rendering = 1 << 10 , CustomProperties = 1 << 11 , GeometryOptions = 1 << 12 , Relations = 1 << 13 , Temporal = 1 << 14 , Legend = 1 << 15 , Elevation = 1 << 16 , Notes = 1 << 17 , AllStyleCategories } |
Categories of style to distinguish appropriate sections for import/export. More... | |
Public Slots inherited from QgsMapLayer | |
void | emitStyleChanged () |
Triggers an emission of the styleChanged() signal. | |
QgsProject * | project () const |
Returns the parent project if this map layer is added to a project. | |
virtual bool | setDependencies (const QSet< QgsMapLayerDependency > &layers) |
Sets the list of dependencies. | |
void | setMaximumScale (double scale) |
Sets the maximum map scale (i.e. | |
void | setMinimumScale (double scale) |
Sets the minimum map scale (i.e. | |
void | setRefreshOnNofifyMessage (const QString &message) |
Set the notification message that triggers repaint If refresh on notification is enabled, the notification will triggerRepaint only if the notification message is equal to. | |
void | setRefreshOnNotifyEnabled (bool enabled) |
Set whether provider notification is connected to triggerRepaint. | |
void | setScaleBasedVisibility (bool enabled) |
Sets whether scale based visibility is enabled for the layer. | |
void | trigger3DUpdate () |
Will advise any 3D maps that this layer requires to be updated in the scene. | |
void | triggerRepaint (bool deferredUpdate=false) |
Will advise the map canvas (and any other interested party) that this layer requires to be repainted. | |
Signals inherited from QgsMapLayer | |
void | autoRefreshIntervalChanged (int interval) |
Emitted when the auto refresh interval changes. | |
void | beforeResolveReferences (QgsProject *project) |
Emitted when all layers are loaded and references can be resolved, just before the references of this layer are resolved. | |
void | blendModeChanged (QPainter::CompositionMode blendMode) |
Signal emitted when the blend mode is changed, through QgsMapLayer::setBlendMode() | |
void | configChanged () |
Emitted whenever the configuration is changed. | |
void | crs3DChanged () |
Emitted when the crs3D() of the layer has changed. | |
void | crsChanged () |
Emitted when the crs() of the layer has changed. | |
void | customPropertyChanged (const QString &key) |
Emitted when a custom property of the layer has been changed or removed. | |
void | dataChanged () |
Data of layer changed. | |
void | dataSourceChanged () |
Emitted whenever the layer's data source has been changed. | |
void | dependenciesChanged () |
Emitted when dependencies are changed. | |
void | editingStarted () |
Emitted when editing on this layer has started. | |
void | editingStopped () |
Emitted when edited changes have been successfully written to the data provider. | |
void | flagsChanged () |
Emitted when layer's flags have been modified. | |
void | idChanged (const QString &id) |
Emitted when the layer's ID has been changed. | |
void | isValidChanged () |
Emitted when the validity of this layer changed. | |
void | layerModified () |
Emitted when modifications has been done on layer. | |
void | legendChanged () |
Signal emitted when legend of the layer has changed. | |
void | mapTipsEnabledChanged () |
Emitted when map tips are enabled or disabled for the layer. | |
void | mapTipTemplateChanged () |
Emitted when the map tip template changes. | |
void | metadataChanged () |
Emitted when the layer's metadata is changed. | |
void | nameChanged () |
Emitted when the name has been changed. | |
void | opacityChanged (double opacity) |
Emitted when the layer's opacity is changed, where opacity is a value between 0 (transparent) and 1 (opaque). | |
void | recalculateExtents () const |
This is used to send a request that any mapcanvas using this layer update its extents. | |
void | renderer3DChanged () |
Signal emitted when 3D renderer associated with the layer has changed. | |
void | rendererChanged () |
Signal emitted when renderer is changed. | |
void | repaintRequested (bool deferredUpdate=false) |
By emitting this signal the layer tells that either appearance or content have been changed and any view showing the rendered layer should refresh itself. | |
void | request3DUpdate () |
Signal emitted when a layer requires an update in any 3D maps. | |
void | statusChanged (const QString &status) |
Emit a signal with status (e.g. to be caught by QgisApp and display a msg on status bar) | |
void | styleChanged () |
Signal emitted whenever a change affects the layer's style. | |
void | styleLoaded (QgsMapLayer::StyleCategories categories) |
Emitted when a style has been loaded. | |
void | verticalCrsChanged () |
Emitted when the verticalCrs() of the layer has changed. | |
void | willBeDeleted () |
Emitted in the destructor when the layer is about to be deleted, but it is still in a perfectly valid state: the last chance for other pieces of code for some cleanup if they use the layer. | |
Static Public Member Functions inherited from QgsMapLayer | |
static QString | extensionPropertyType (PropertyType type) |
Returns the extension of a Property. | |
static QString | formatLayerName (const QString &name) |
A convenience function to capitalize and format a layer name. | |
static QString | generateId (const QString &layerName) |
Generates an unique identifier for this layer, the generate ID is prefixed by layerName. | |
static Qgis::DataProviderReadFlags | providerReadFlags (const QDomNode &layerNode, QgsMapLayer::ReadFlags layerReadFlags) |
Returns provider read flag deduced from layer read flags layerReadFlags and a dom node layerNode that describes a layer (corresponding to maplayer tag in a DOM document project file read by QgsProject). | |
Protected Member Functions inherited from QgsMapLayer | |
void | appendError (const QgsErrorMessage &error) |
Add error message. | |
void | clone (QgsMapLayer *layer) const |
Copies attributes like name, short name, ... into another layer. | |
QString | crsHtmlMetadata () const |
Returns a HTML fragment containing the layer's CRS metadata, for use in the htmlMetadata() method. | |
QString | customPropertyHtmlMetadata () const |
Returns an HTML fragment containing custom property information, for use in the htmlMetadata() method. | |
virtual QString | decodedSource (const QString &source, const QString &dataProvider, const QgsReadWriteContext &context) const |
Called by readLayerXML(), used by derived classes to decode provider's specific data source from project files. | |
virtual QString | encodedSource (const QString &source, const QgsReadWriteContext &context) const |
Called by writeLayerXML(), used by derived classes to encode provider's specific data source to project files. | |
QString | generalHtmlMetadata () const |
Returns an HTML fragment containing general metadata information, for use in the htmlMetadata() method. | |
Q_DECL_DEPRECATED bool | hasDependencyCycle (const QSet< QgsMapLayerDependency > &) const |
Checks whether a new set of dependencies will introduce a cycle this method is now deprecated and always return false , because circular dependencies are now correctly managed. | |
void | invalidateWgs84Extent () |
Invalidates the WGS84 extent. | |
void | readCommonStyle (const QDomElement &layerElement, const QgsReadWriteContext &context, StyleCategories categories=AllStyleCategories) |
Read style data common to all layer types. | |
void | readCustomProperties (const QDomNode &layerNode, const QString &keyStartsWith=QString()) |
Read custom properties from project file. | |
void | readStyleManager (const QDomNode &layerNode) |
Read style manager's configuration (if any). To be called by subclasses. | |
void | setError (const QgsError &error) |
Sets error message. | |
virtual void | setExtent (const QgsRectangle &rect) |
Sets the extent. | |
virtual void | setExtent3D (const QgsBox3D &box) |
Sets the extent. | |
void | setProviderType (const QString &providerType) |
Sets the providerType (provider key) | |
void | setValid (bool valid) |
Sets whether layer is valid or not. | |
void | writeCommonStyle (QDomElement &layerElement, QDomDocument &document, const QgsReadWriteContext &context, StyleCategories categories=AllStyleCategories) const |
Write style data common to all layer types. | |
void | writeCustomProperties (QDomNode &layerNode, QDomDocument &doc) const |
Write custom properties to project file. | |
void | writeStyleManager (QDomNode &layerNode, QDomDocument &doc) const |
Write style manager's configuration (if exists). To be called by subclasses. | |
Protected Attributes inherited from QgsMapLayer | |
int | mBlockStyleChangedSignal = 0 |
If non-zero, the styleChanged signal should not be emitted. | |
QString | mDataSource |
Data source description string, varies by layer type. | |
QSet< QgsMapLayerDependency > | mDependencies |
List of layers that may modify this layer on modification. | |
QgsError | mError |
Error. | |
bool | mIsRefreshOnNofifyEnabled = false |
QString | mLayerName |
Name of the layer - used for display. | |
double | mLayerOpacity = 1.0 |
Layer opacity. | |
QString | mLegendUrl |
WMS legend. | |
QString | mLegendUrlFormat |
std::unique_ptr< QgsDataProvider > | mPreloadedProvider |
Optionally used when loading a project, it is released when the layer is effectively created. | |
QString | mProviderKey |
Data provider key (name of the data provider) | |
QgsMapLayer::ReadFlags | mReadFlags = QgsMapLayer::ReadFlags() |
Read flags. It's up to the subclass to respect these when restoring state from XML. | |
QString | mRefreshOnNofifyMessage |
bool | mShouldValidateCrs = true |
true if the layer's CRS should be validated and invalid CRSes are not permitted. | |
bool | mValid = false |
Indicates if the layer is valid and can be drawn. | |
Properties inherited from QgsMapLayer | |
int | autoRefreshInterval |
QgsCoordinateReferenceSystem | crs |
QgsCoordinateReferenceSystem | crs3D |
QString | id |
bool | isValid |
bool | mapTipsEnabled |
QString | mapTipTemplate |
QgsLayerMetadata | metadata |
QString | name |
double | opacity |
Qgis::LayerType | type |
QgsCoordinateReferenceSystem | verticalCrs |
Represents a map layer containing a set of georeferenced annotations, e.g.
markers, lines, polygons or text items.
Annotation layers store a set of QgsAnnotationItem items, which are rendered according to the item's z-order.
Definition at line 47 of file qgsannotationlayer.h.
QgsAnnotationLayer::QgsAnnotationLayer | ( | const QString & | name, |
const QgsAnnotationLayer::LayerOptions & | options | ||
) |
Constructor for a new QgsAnnotationLayer with the specified layer name.
The options argument specifies load-time layer options.
Definition at line 103 of file qgsannotationlayer.cpp.
|
override |
Definition at line 119 of file qgsannotationlayer.cpp.
QString QgsAnnotationLayer::addItem | ( | QgsAnnotationItem * | item | ) |
Adds an item to the layer.
Ownership of item is transferred to the layer.
Returns the unique ID assigned to the item.
Definition at line 139 of file qgsannotationlayer.cpp.
Qgis::AnnotationItemEditOperationResult QgsAnnotationLayer::applyEdit | ( | QgsAbstractAnnotationItemEditOperation * | operation | ) |
Applies an edit operation to the layer.
Returns true
if the operation was successfully applied.
Definition at line 264 of file qgsannotationlayer.cpp.
Qgis::AnnotationItemEditOperationResult QgsAnnotationLayer::applyEditV2 | ( | QgsAbstractAnnotationItemEditOperation * | operation, |
const QgsAnnotationItemEditContext & | context | ||
) |
Applies an edit operation to the layer.
Returns true
if the operation was successfully applied.
Definition at line 271 of file qgsannotationlayer.cpp.
void QgsAnnotationLayer::clear | ( | ) |
Removes all items from the layer.
Definition at line 209 of file qgsannotationlayer.cpp.
|
overridevirtual |
Returns a new instance equivalent to this one except for the id which is still unique.
Implements QgsMapLayer.
Definition at line 317 of file qgsannotationlayer.cpp.
|
overridevirtual |
Returns new instance of QgsMapLayerRenderer that will be used for rendering of given context.
Implements QgsMapLayer.
Definition at line 342 of file qgsannotationlayer.cpp.
|
overridevirtual |
Returns the layer's data provider in a const-correct manner, it may be nullptr
.
Reimplemented from QgsMapLayer.
Definition at line 603 of file qgsannotationlayer.cpp.
|
overridevirtual |
Returns the layer's data provider, it may be nullptr
.
Reimplemented from QgsMapLayer.
Definition at line 596 of file qgsannotationlayer.cpp.
|
overridevirtual |
Returns the extent of the layer.
Reimplemented from QgsMapLayer.
Definition at line 349 of file qgsannotationlayer.cpp.
|
overridevirtual |
Obtain a formatted HTML string containing assorted metadata for this layer.
Reimplemented from QgsMapLayer.
Definition at line 610 of file qgsannotationlayer.cpp.
|
overridevirtual |
Returns true
if the layer can be edited.
Reimplemented from QgsMapLayer.
Definition at line 581 of file qgsannotationlayer.cpp.
bool QgsAnnotationLayer::isEmpty | ( | ) | const |
Returns true
if the annotation layer is empty and contains no annotations.
Definition at line 221 of file qgsannotationlayer.cpp.
QgsAnnotationItem * QgsAnnotationLayer::item | ( | const QString & | id | ) | const |
Returns the item with the specified id, or nullptr
if no matching item was found.
Definition at line 228 of file qgsannotationlayer.cpp.
|
inline |
Returns a map of items contained in the layer, by unique item ID.
This map contains references to items owned by the layer, and ownership of these remains with the layer.
Definition at line 135 of file qgsannotationlayer.h.
QStringList QgsAnnotationLayer::itemsInBounds | ( | const QgsRectangle & | bounds, |
QgsRenderContext & | context, | ||
QgsFeedback * | feedback = nullptr |
||
) | const |
Returns a list of the IDs of all annotation items within the specified bounds (in layer CRS), when rendered using the given render context.
The optional feedback argument can be used to cancel the search early.
Definition at line 249 of file qgsannotationlayer.cpp.
QgsMapLayer * QgsAnnotationLayer::linkedVisibilityLayer | ( | ) |
Returns a linked layer, where the items in this annotation layer will only be visible when the linked layer is also visible.
Definition at line 682 of file qgsannotationlayer.cpp.
QgsPaintEffect * QgsAnnotationLayer::paintEffect | ( | ) | const |
Returns the current paint effect for the layer.
Definition at line 668 of file qgsannotationlayer.cpp.
|
overridevirtual |
Returns the map layer properties of this layer.
Reimplemented from QgsMapLayer.
Definition at line 309 of file qgsannotationlayer.cpp.
|
overridevirtual |
Read the style for the current layer from the DOM node supplied.
node | node that will contain the style definition for this layer. |
errorMessage | reference to string that will be updated with any error messages |
context | reading context (used for transform from relative to absolute paths) |
categories | the style categories to be read |
true
in case of success. false
. Reimplemented from QgsMapLayer.
Definition at line 572 of file qgsannotationlayer.cpp.
|
overridevirtual |
Read the symbology for the current layer from the DOM node supplied.
node | node that will contain the symbology definition for this layer. |
errorMessage | reference to string that will be updated with any error messages |
context | reading context (used for transform from relative to absolute paths) |
categories | the style categories to be read |
true
in case of success. Implements QgsMapLayer.
Definition at line 468 of file qgsannotationlayer.cpp.
|
overridevirtual |
Called by readLayerXML(), used by children to read state specific to them from project files.
Reimplemented from QgsMapLayer.
Definition at line 379 of file qgsannotationlayer.cpp.
bool QgsAnnotationLayer::removeItem | ( | const QString & | id | ) |
Removes (and deletes) the item with matching id.
Definition at line 183 of file qgsannotationlayer.cpp.
void QgsAnnotationLayer::replaceItem | ( | const QString & | id, |
QgsAnnotationItem * | item | ||
) |
Replaces the existing item with matching id with a new item.
Ownership of item is transferred to the layer.
Definition at line 155 of file qgsannotationlayer.cpp.
void QgsAnnotationLayer::reset | ( | ) |
Resets the annotation layer to a default state, and clears all items from it.
Definition at line 126 of file qgsannotationlayer.cpp.
|
overridevirtual |
Resolve references to other layers (kept as layer IDs after reading XML) into layer objects.
Reimplemented from QgsMapLayer.
Definition at line 663 of file qgsannotationlayer.cpp.
void QgsAnnotationLayer::setLinkedVisibilityLayer | ( | QgsMapLayer * | layer | ) |
Sets a linked layer, where the items in this annotation layer will only be visible when the linked layer is also visible.
Definition at line 689 of file qgsannotationlayer.cpp.
void QgsAnnotationLayer::setPaintEffect | ( | QgsPaintEffect * | effect | ) |
Sets the current paint effect for the layer.
Ownership is transferred to the renderer.
Definition at line 675 of file qgsannotationlayer.cpp.
|
overridevirtual |
Sets the coordinate transform context to transformContext.
Implements QgsMapLayer.
Definition at line 368 of file qgsannotationlayer.cpp.
|
overridevirtual |
Returns whether the layer supports editing or not.
false
if the layer is read only or the data provider has no editing capabilities. false
. Reimplemented from QgsMapLayer.
Definition at line 589 of file qgsannotationlayer.cpp.
|
overridevirtual |
Write just the symbology information for the layer into the document.
node | the node that will have the style element added to it. |
doc | the document that will have the QDomNode added. |
errorMessage | reference to string that will be updated with any error messages |
context | writing context (used for transform from absolute to relative paths) |
categories | the style categories to be written |
true
in case of success. false
. Reimplemented from QgsMapLayer.
Definition at line 563 of file qgsannotationlayer.cpp.
|
overridevirtual |
Write the style for the layer into the document provided.
node | the node that will have the style element added to it. |
doc | the document that will have the QDomNode added. |
errorMessage | reference to string that will be updated with any error messages |
context | writing context (used for transform from absolute to relative paths) |
categories | the style categories to be written |
true
in case of success. Implements QgsMapLayer.
Definition at line 435 of file qgsannotationlayer.cpp.
|
overridevirtual |
Called by writeLayerXML(), used by children to write state specific to them to project files.
Reimplemented from QgsMapLayer.
Definition at line 405 of file qgsannotationlayer.cpp.
|
friend |
Definition at line 243 of file qgsannotationlayer.h.