Snapping utils instance that is connected to a canvas and updates the configuration (map settings + current layer) whenever that is changed in the canvas. More...
#include <qgsmapcanvassnappingutils.h>
Inheritance diagram for QgsMapCanvasSnappingUtils:
Public Member Functions | |
| QgsMapCanvasSnappingUtils (QgsMapCanvas *canvas, QObject *parent=nullptr) | |
| Construct map canvas snapping utils object. More... | |
 Public Member Functions inherited from QgsSnappingUtils | |
| QgsSnappingUtils (QObject *parent=nullptr, bool enableSnappingForInvisibleFeature=true) | |
| Constructor for QgsSnappingUtils. More... | |
| ~QgsSnappingUtils () override | |
| void | addExtraSnapLayer (QgsVectorLayer *vl) |
| Supply an extra snapping layer (typically a memory layer). More... | |
| QgsSnappingConfig | config () const |
| The snapping configuration controls the behavior of this object. More... | |
| QgsVectorLayer * | currentLayer () const |
| The current layer used if mode is SnapCurrentLayer. More... | |
| QString | dump () |
| Gets extra information about the instance. More... | |
| QSet< QgsVectorLayer * > | getExtraSnapLayers () |
| Returns the list of extra snapping layers. More... | |
| IndexingStrategy | indexingStrategy () const |
| Find out which strategy is used for indexing - by default hybrid indexing is used. More... | |
| QList< QgsSnappingUtils::LayerConfig > | layers () const |
| Query layers used for snapping. More... | |
| QgsPointLocator * | locatorForLayer (QgsVectorLayer *vl) |
| Gets a point locator for the given layer. More... | |
| QgsMapSettings | mapSettings () const |
| void | removeExtraSnapLayer (QgsVectorLayer *vl) |
| Removes an extra snapping layer. More... | |
| void | setCurrentLayer (QgsVectorLayer *layer) |
| Sets current layer so that if mode is SnapCurrentLayer we know which layer to use. More... | |
| void | setEnableSnappingForInvisibleFeature (bool enable) |
| Set if invisible features must be snapped or not. More... | |
| void | setIndexingStrategy (IndexingStrategy strategy) |
| Sets a strategy for indexing geometry data - determines how fast and memory consuming the data structures will be. More... | |
| void | setMapSettings (const QgsMapSettings &settings) |
| Assign current map settings to the utils - used for conversion between screen coords to map coords. More... | |
| QgsPointLocator::Match | snapToCurrentLayer (QPoint point, QgsPointLocator::Types type, QgsPointLocator::MatchFilter *filter=nullptr) |
| Snap to current layer. More... | |
| QgsPointLocator::Match | snapToMap (const QgsPointXY &pointMap, QgsPointLocator::MatchFilter *filter=nullptr, bool relaxed=false) |
| Snap to map according to the current configuration. More... | |
| QgsPointLocator::Match | snapToMap (QPoint point, QgsPointLocator::MatchFilter *filter=nullptr, bool relaxed=false) |
| Snap to map according to the current configuration. More... | |
Protected Member Functions | |
| void | prepareIndexProgress (int index) override |
| Called when finished indexing a layer with snapToMap. When index == count the indexing is complete. More... | |
| void | prepareIndexStarting (int count) override |
| Called when starting to index with snapToMap - can be overridden and e.g. progress dialog can be provided. More... | |
| Protected Member Functions inherited from QgsSnappingUtils | |
| void | clearAllLocators () |
| Deletes all existing locators (e.g. when destination CRS has changed and we need to reindex) More... | |
Additional Inherited Members | |
| Public Types inherited from QgsSnappingUtils | |
| enum | IndexingStrategy { IndexAlwaysFull , IndexNeverFull , IndexHybrid , IndexExtent } |
| Public Slots inherited from QgsSnappingUtils | |
| void | setConfig (const QgsSnappingConfig &snappingConfig) |
| The snapping configuration controls the behavior of this object. More... | |
| void | toggleEnabled () |
| Toggles the state of snapping. More... | |
| Signals inherited from QgsSnappingUtils | |
| void | configChanged (const QgsSnappingConfig &snappingConfig) |
| Emitted when the snapping settings object changes. More... | |
| Properties inherited from QgsSnappingUtils | |
| QgsSnappingConfig | config |
Detailed Description
Snapping utils instance that is connected to a canvas and updates the configuration (map settings + current layer) whenever that is changed in the canvas.
- Since
- QGIS 2.8
Definition at line 33 of file qgsmapcanvassnappingutils.h.
Constructor & Destructor Documentation
◆ QgsMapCanvasSnappingUtils()
| QgsMapCanvasSnappingUtils::QgsMapCanvasSnappingUtils | ( | QgsMapCanvas * | canvas, |
| QObject * | parent = nullptr |
||
| ) |
Construct map canvas snapping utils object.
- Parameters
-
canvas map canvas parent parent object if falseit will block until indexing is done
Definition at line 24 of file qgsmapcanvassnappingutils.cpp.
Member Function Documentation
◆ prepareIndexProgress()
|
overrideprotectedvirtual |
Called when finished indexing a layer with snapToMap. When index == count the indexing is complete.
Reimplemented from QgsSnappingUtils.
Definition at line 69 of file qgsmapcanvassnappingutils.cpp.
◆ prepareIndexStarting()
|
overrideprotectedvirtual |
Called when starting to index with snapToMap - can be overridden and e.g. progress dialog can be provided.
Reimplemented from QgsSnappingUtils.
Definition at line 62 of file qgsmapcanvassnappingutils.cpp.
The documentation for this class was generated from the following files:
- /build/qgis-3.18.1+99unstable/src/gui/qgsmapcanvassnappingutils.h
- /build/qgis-3.18.1+99unstable/src/gui/qgsmapcanvassnappingutils.cpp
