A map layer backed by a GDAL/OGR vector dataset. More...

#include <gisvectorlayer.h>

Inheritance diagram for GISVectorLayer:

Collaboration diagram for GISVectorLayer:

Classes
struct	OgrSublayerInfo
	Lightweight description of one OGR layer inside a datasource, produced by enumerateSublayers() without fully loading it. More...

struct	OpenResult

Signals
void	filePathChanged (const QString &path)

void	layerNameChanged (const QString &name)

void	featureCountChanged (int count)

void	filterExpressionChanged (const QString &expr)

void	symbolChanged (const GISVectorSymbol &symbol)

void	selectionChanged (const QSet< long long > &selectedIds)

void	rendererChanged ()
	Emitted when setRenderer() swaps the renderer pointer.

void	openFinished (bool ok)
	Emitted on the GUI thread when openAsync() completes.

void	crsAssumed (const QString &filePath)
	Emitted once when this layer's file declares no CRS and its coordinates are therefore assumed to already be in the canvas CRS.

Signals inherited from OpenSWMMVisLayer
void	nameChanged (const QString &newName)

void	layerTypeChanged (OpenSWMMVisLayerType newType)

void	visibilityChanged (bool visible)

void	opacityChanged (double opacity)

void	srsChanged (SpatialReferenceSystem *newSRS)

void	extentChanged (const MapExtent &newExtent)

void	childrenChanged ()

void	repaintRequested ()

void	temporalSpecChanged (const OpenSWMM::Render::TemporalSpec &spec)

void	maskSpecChanged (const OpenSWMM::Render::MaskSpec &spec)

void	auxStorageSpecChanged (const OpenSWMM::Render::AuxiliaryStorageSpec &spec)

void	joinsChanged (const QVector< OpenSWMM::Render::JoinSpec > &joins)

void	diagramSpecChanged (const OpenSWMM::Render::DiagramSpec &spec)

void	labelConfigChanged ()

Public Member Functions
	GISVectorLayer (const QString &filePath, const QString &layerName={}, OpenSWMMVisWorkspace *parent=nullptr)

	~GISVectorLayer () override

void	openAsync (const QString &filePath, const QString &layerName={})
	Asynchronously open `filePath` / `layerName`. GDALOpenEx + GetExtent (which forces a scan on some drivers) run on a worker thread; the layer is populated on the GUI thread and openFinished(bool) fires on completion. Construct with an empty path first; the synchronous openDataset path (tests / project restore) is unchanged.

QString	filePath () const
	Returns the file path to the OGR dataset.

QString	ogrLayerName () const
	Returns the OGR sub-layer name opened within the dataset.

class OGRLayer *	ogrLayer () const
	Read-only OGRLayer handle for callers that need to walk features directly (e.g. mesh-generator constraint pulls). Returns nullptr if the dataset is not open.

void	appendScenePolygonsTo (QPainterPath &out) const
	Slice Z.14-paint — append every polygon ring this layer currently exposes (post-attribute-filter) to `out` in canvas-scene coords (Y-flipped, same space the canvas QGraphicsItems paint into).

int	featureCount () const
	Returns the number of features currently visible (after filtering).

QStringList	fieldNames () const
	Returns the list of field (attribute column) names.

QString	sourceDescription () const override
	Human-readable source of this layer: a file path, a service URL, or a description for in-memory / derived layers.

QVector< QPair< QString, QString > >	extendedMetadata () const override
	Ordered key→value pairs of TYPE-SPECIFIC metadata, rendered by the Metadata tab below the common block the dialog builds itself.

QVector< OpenSWMM::Render::AttributeField >	availableAttributes (OpenSWMMVis::SwmmCategory cat) const override

QString	filterExpression () const
	Returns the current OGR attribute filter expression.

void	setFilterExpression (const QString &expr)
	Sets an OGR SQL WHERE-clause filter on the features.

GISVectorSymbol	symbol () const

void	setSymbol (const GISVectorSymbol &symbol)

void	setLabelConfig (const OpenSWMM::Render::LabelConfig &cfg) override
	Slice X.18 — full label configuration.

QStringList	ogrFieldNames () const
	Names of the OGR fields available for label expressions. Empty when no dataset has been opened yet. Used by the Labels tab to populate the field combobox.

std::vector< std::unique_ptr< openswmmvis::ui::ILayerStyleSubject > >	styleSubjects () override

OpenSWMM::Render::IFeatureRenderer *	renderer () const
	The IFeatureRenderer that will drive this layer's paint pass.

void	setRenderer (std::unique_ptr< OpenSWMM::Render::IFeatureRenderer > r)
	Replaces the current renderer.

OpenSWMM::Render::RuleList *	ruleList () override

const OpenSWMM::Render::RuleList *	ruleList () const override

QSet< long long >	selectedFeatureIds () const
	Returns the set of currently selected feature IDs.

void	setSelectedFeatureIds (const QSet< long long > &ids)
	Selects the features with the given IDs (replacing any prior selection).

void	clearSelection ()
	Clears all selected features.

QSet< long long >	featureIdsInRect (const MapExtent &rectCanvasCrs) const
	SVBC round B — fids of every feature whose GEOMETRY intersects `rectCanvasCrs` (OGR bbox prefilter, then precise Intersects). The rect arrives in canvas CRS and is inverse-transformed when the layer is reprojected. Any pre-existing spatial filter is saved and restored (clone dance).

QVector< QPointF >	selectedFeatureAnchors () const
	Scene-space centres of the selected features' items — beacon anchors for MapCanvas::flashSelection.

QList< QVariantMap >	identifyAt (double mapX, double mapY, const SpatialReferenceSystem *canvasSRS, double tolerance=1e-6) const
	Returns attributes of features that intersect the given map point.

QList< QVariantMap >	identifyAt (double mapX, double mapY, double tolerance=1e-6) const
	Convenience overload — no CRS needed (uses current layer CRS).

void	populateScene (QGraphicsScene scene, const MapExtent &canvasExtent, const SpatialReferenceSystem canvasSRS) override
	Creates / updates QGraphicsItems representing this layer in the scene.

void	depopulateScene (QGraphicsScene *scene) override
	Removes all QGraphicsItems belonging to this layer from the scene.

void	refreshScene (QGraphicsScene scene, const MapExtent &canvasExtent, const SpatialReferenceSystem canvasSRS) override
	Smart scene refresh — updates existing items instead of destroying and recreating.

void	onCanvasCRSChanged (const SpatialReferenceSystem *newCanvasSRS) override
	Called when the user changes the canvas CRS so layers can pre-compute any CRS-dependent transform caches.

Public Member Functions inherited from OpenSWMMVisLayer
	OpenSWMMVisLayer (OpenSWMMVisWorkspace *parent)

	OpenSWMMVisLayer (const QString &name="Unlabeled Layer", OpenSWMMVisWorkspace *parent=nullptr)

virtual	~OpenSWMMVisLayer ()

QString	layerId () const
	Returns the layer's immutable unique identifier (UUID).

QString	name () const
	Returns the user-visible name of this layer.

void	setName (const QString &name)
	Sets the user-visible name.

OpenSWMMVisLayerType	layerType () const
	Returns the layer type discriminator.

bool	isVisible () const
	Returns true when this layer should be drawn.

void	setVisible (bool visible)
	Shows or hides this layer.

double	opacity () const
	Returns the layer opacity in the range [0.0, 1.0]. 0.0 = fully transparent; 1.0 = fully opaque.

void	setOpacity (double opacity)
	Sets the layer opacity. Values are clamped to [0.0, 1.0].

SpatialReferenceSystem *	srs () const
	Returns the spatial reference system for this layer, or nullptr if the layer has no known CRS.

void	setSRS (SpatialReferenceSystem *srs, bool ownsSRS=false)
	Sets (or replaces) the CRS for this layer.

QString	crsDescription () const
	Returns a human-readable summary of this layer's CRS for display in the Properties window.

MapExtent	extent () const
	Returns the layer extent in the layer's own CRS.

void	setExtent (const MapExtent &extent)
	Sets the layer spatial extent (in the layer's CRS).

virtual bool	isRasterLayer () const
	Returns true for layers that render into a raster buffer (WMS, WMTS, GISRaster) rather than populating QGraphicsItems.

virtual bool	isBasemapLayer () const
	Returns true for world-spanning basemap layers (XYZ tile providers, WMS/WMTS services covering the whole world) that should NOT be included when computing the data-driven full extent.

virtual void	render (QPainter painter, const MapExtent &extent, const QSize &imageSize, const SpatialReferenceSystem srs)
	Renders this layer's content directly into `painter`.

virtual void	fetchCache (const MapExtent &extent, const QSize &viewportSize, const SpatialReferenceSystem *srs)
	Triggers any asynchronous (or synchronous) tile/data fetch needed to populate this layer's internal cache for the given view state.

void	setViewportSize (int w, int h)
	Called by MapCanvas before refreshScene so layers can request the correct pixel dimensions for tile/image requests.

int	viewportWidth () const

int	viewportHeight () const

QVector< OpenSWMMVisLayer * >	children () const
	Returns the ordered list of child layers.

double	layerZValue () const
	Returns the z-value base assigned to this layer by the canvas. Items within the layer should use z-values relative to this.

void	setLayerZValue (double z)
	Called by the canvas to set this layer's z-value band.

const OpenSWMM::Render::TemporalSpec &	temporalSpec () const

void	setTemporalSpec (const OpenSWMM::Render::TemporalSpec &spec)

const OpenSWMM::Render::LabelConfig &	labelConfig () const

const OpenSWMM::Render::MaskSpec &	maskSpec () const

void	setMaskSpec (const OpenSWMM::Render::MaskSpec &spec)

const OpenSWMM::Render::AuxiliaryStorageSpec &	auxStorageSpec () const

void	setAuxStorageSpec (const OpenSWMM::Render::AuxiliaryStorageSpec &spec)

const QVector< OpenSWMM::Render::JoinSpec > &	joins () const

void	setJoins (const QVector< OpenSWMM::Render::JoinSpec > &joins)

const OpenSWMM::Render::DiagramSpec &	diagramSpec () const

void	setDiagramSpec (const OpenSWMM::Render::DiagramSpec &spec)

OpenSWMMVisWorkspace *	workspace () const

void	setBasicAuth (const QString &username, const QString &password)
	Sets HTTP Basic authentication for all subsequent network requests.

void	setHttpHeaders (const BasemapHttpHeaders &headers)
	Sets arbitrary extra HTTP headers applied to every request.

BasemapHttpHeaders	httpHeaders () const

Public Member Functions inherited from OpenSWMM::Render::IAttributeProvider
virtual	~IAttributeProvider ()=default

Static Public Member Functions
static QList< OgrSublayerInfo >	enumerateSublayers (const QString &filePath, QString *errorOut=nullptr)
	Enumerate the layers in a vector datasource without fully loading any of them. Opens read-only, reads each OGR layer's name / geometry / feature-count / CRS, then closes.

Protected Member Functions
void	setOpenFlags (unsigned flags)
	GDALOpenEx flags used by openDataset and openAsync.

unsigned	openFlags () const

GDALDataset *	dataset () const
	The open dataset, or nullptr. Non-owning; the layer closes it. Exposed for subclasses that must reach GDAL directly (schema changes, transaction control).

void	markSceneDirty ()
	Force the next populateScene() to rebuild its items. Call after mutating the underlying dataset so the scene reflects the write; refreshScene() alone short-circuits on a clean dirty flag.

void	openDataset (const QString &filePath, const QString &layerName)
	Open `filePath` / `layerName` synchronously.

void	closeDataset ()
	Closes whatever is open, releasing the dataset.

Protected Member Functions inherited from OpenSWMMVisLayer
bool	addChild (OpenSWMMVisLayer *child)

bool	removeChild (OpenSWMMVisLayer *child)

void	setLayerType (OpenSWMMVisLayerType type)

Properties
QString	filePath

QString	layerName

int	featureCount

QString	filterExpr

GISVectorSymbol	symbol

Properties inherited from OpenSWMMVisLayer
QString	Name

bool	Visible

double	Opacity

QString	LayerId

OpenSWMMVisLayerType	LayerType

QVector< OpenSWMMVisLayer * >	Children

QString	CRS

Additional Inherited Members
Public Types inherited from OpenSWMMVisLayer
enum	OpenSWMMVisLayerType { SWMMDefaultLayer = 0 , SWMMModelLayer = 1 , SWMMResultsLayer = 2 , SWMMGISLayer = 3 , SWMMVectorLayer = 4 , SWMMRasterLayer = 5 , SWMMImageryLayer = 6 , SWMMTabularDataLayer = 7 , SWMMTabularyTimeSeriesLayer = 8 , SWMMSubProjectLayer = 9 , SWMMWMSLayer = 10 , SWMMWMTSLayer = 11 , SWMM2DMeshLayer = 12 , SWMM2DResultsLayer = 13 , SWMMAnnotationLayer = 14 , SWMMFeatureLayer = 15 }
	Discriminator for the concrete layer class. More...

Protected Attributes inherited from OpenSWMMVisLayer
QByteArray	m_authHeader
	"Basic <base64>" or empty

BasemapHttpHeaders	m_httpHeaders
	arbitrary headers (incl. "referer")

Detailed Description

A map layer backed by a GDAL/OGR vector dataset.

Loads any OGR-supported format (Shapefile, GeoPackage, GeoJSON, …), reads features, reprojects them to the canvas CRS on the fly using OGRCoordinateTransformation, and renders with a configurable symbol.

The layer also supports:

Per-field attribute queries (filter expression).
Feature selection tracking.
An identify operation returning attributes as QVariantMap.

Constructor & Destructor Documentation

◆ GISVectorLayer()

GISVectorLayer::GISVectorLayer	(	const QString &	filePath,
		const QString &	layerName = `{}`,
		OpenSWMMVisWorkspace *	parent = `nullptr`
	)

explicit

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◆ ~GISVectorLayer()

GISVectorLayer::~GISVectorLayer ( )

override

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Member Function Documentation

◆ appendScenePolygonsTo()

void GISVectorLayer::appendScenePolygonsTo ( QPainterPath & out ) const

Slice Z.14-paint — append every polygon ring this layer currently exposes (post-attribute-filter) to out in canvas-scene coords (Y-flipped, same space the canvas QGraphicsItems paint into).

Multi-polygons contribute each sub-polygon's exterior + holes. Non-polygon geometries are skipped silently — callers (e.g. the mask-clip resolver) treat that as an empty result and fall back to unclipped paint.

Idempotent w.r.t. the spatial-filter rectangle the canvas has set on the underlying OGRLayer; the method clears the filter, iterates every feature, then restores the prior filter so concurrent canvas painting isn't disturbed.

◆ availableAttributes()

QVector< OpenSWMM::Render::AttributeField > GISVectorLayer::availableAttributes ( OpenSWMMVis::SwmmCategory cat ) const

overridevirtual

Available themeable fields for cat. Empty list is a valid answer — means the layer doesn't surface per-feature attributes on this category (e.g. SWMMModelLayer::CatRainGages has no per- feature engine fields).

Order = preferred picker order. Callers should NOT re-sort.

Implements OpenSWMM::Render::IAttributeProvider.

◆ clearSelection()

void GISVectorLayer::clearSelection ( )

Clears all selected features.

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◆ closeDataset()

void GISVectorLayer::closeDataset ( )

protected

Closes whatever is open, releasing the dataset.

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◆ crsAssumed

void GISVectorLayer::crsAssumed ( const QString & filePath )

signal

Emitted once when this layer's file declares no CRS and its coordinates are therefore assumed to already be in the canvas CRS.

Not an error — local-coordinate data legitimately has no CRS, and this is what the layer has always done. It is surfaced so a layer that lands in the wrong place has a stated reason.

◆ dataset()

GDALDataset * GISVectorLayer::dataset ( ) const

inlineprotected

The open dataset, or nullptr. Non-owning; the layer closes it. Exposed for subclasses that must reach GDAL directly (schema changes, transaction control).

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◆ depopulateScene()

void GISVectorLayer::depopulateScene ( QGraphicsScene * scene )

overridevirtual

Removes all QGraphicsItems belonging to this layer from the scene.

Reimplemented from OpenSWMMVisLayer.

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◆ enumerateSublayers()

QList< GISVectorLayer::OgrSublayerInfo > GISVectorLayer::enumerateSublayers	(	const QString &	filePath,
		QString *	errorOut = `nullptr`
	)

static

Enumerate the layers in a vector datasource without fully loading any of them. Opens read-only, reads each OGR layer's name / geometry / feature-count / CRS, then closes.

Parameters

filePath	Datasource path (GeoPackage, File GDB, GML, …).
errorOut	Optional; set to a human-readable message on failure.

Returns: One entry per layer; empty on failure or when the path is not a readable vector datasource.

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◆ extendedMetadata()

QVector< QPair< QString, QString > > GISVectorLayer::extendedMetadata ( ) const

overridevirtual

Ordered key→value pairs of TYPE-SPECIFIC metadata, rendered by the Metadata tab below the common block the dialog builds itself.

Default empty. Subclasses add only what is unique to them (e.g. a mesh: vertices / cells / edges / elevation range). QVector<QPair> preserves insertion order without a new type.

Reimplemented from OpenSWMMVisLayer.

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◆ featureCount()

int GISVectorLayer::featureCount ( ) const

Returns the number of features currently visible (after filtering).

◆ featureCountChanged

void GISVectorLayer::featureCountChanged ( int count )

signal

◆ featureIdsInRect()

QSet< long long > GISVectorLayer::featureIdsInRect ( const MapExtent & rectCanvasCrs ) const

SVBC round B — fids of every feature whose GEOMETRY intersects rectCanvasCrs (OGR bbox prefilter, then precise Intersects). The rect arrives in canvas CRS and is inverse-transformed when the layer is reprojected. Any pre-existing spatial filter is saved and restored (clone dance).

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◆ fieldNames()

QStringList GISVectorLayer::fieldNames ( ) const

Returns the list of field (attribute column) names.

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◆ filePath()

QString GISVectorLayer::filePath ( ) const

Returns the file path to the OGR dataset.

◆ filePathChanged

void GISVectorLayer::filePathChanged ( const QString & path )

signal

◆ filterExpression()

QString GISVectorLayer::filterExpression ( ) const

Returns the current OGR attribute filter expression.

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◆ filterExpressionChanged

void GISVectorLayer::filterExpressionChanged ( const QString & expr )

signal

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◆ identifyAt() [1/2]

QList< QVariantMap > GISVectorLayer::identifyAt	(	double	mapX,
		double	mapY,
		const SpatialReferenceSystem *	canvasSRS,
		double	tolerance = `1e-6`
	)		const

Returns attributes of features that intersect the given map point.

Parameters

mapX	X coordinate in the canvas CRS.
mapY	Y coordinate in the canvas CRS.
canvasSRS	Canvas CRS used for the point coordinates (may be nullptr).
tolerance	Search tolerance in map units.

Returns: List of QVariantMaps, one per matching feature.

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◆ identifyAt() [2/2]

QList< QVariantMap > GISVectorLayer::identifyAt	(	double	mapX,
		double	mapY,
		double	tolerance = `1e-6`
	)		const

Convenience overload — no CRS needed (uses current layer CRS).

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◆ layerNameChanged

void GISVectorLayer::layerNameChanged ( const QString & name )

signal

◆ markSceneDirty()

void GISVectorLayer::markSceneDirty ( )

inlineprotected

Force the next populateScene() to rebuild its items. Call after mutating the underlying dataset so the scene reflects the write; refreshScene() alone short-circuits on a clean dirty flag.

◆ ogrFieldNames()

QStringList GISVectorLayer::ogrFieldNames ( ) const

Names of the OGR fields available for label expressions. Empty when no dataset has been opened yet. Used by the Labels tab to populate the field combobox.

◆ ogrLayer()

class OGRLayer * GISVectorLayer::ogrLayer ( ) const

inline

Read-only OGRLayer handle for callers that need to walk features directly (e.g. mesh-generator constraint pulls). Returns nullptr if the dataset is not open.

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◆ ogrLayerName()

QString GISVectorLayer::ogrLayerName ( ) const

Returns the OGR sub-layer name opened within the dataset.

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◆ onCanvasCRSChanged()

void GISVectorLayer::onCanvasCRSChanged ( const SpatialReferenceSystem * newCanvasSRS )

overridevirtual

Called when the user changes the canvas CRS so layers can pre-compute any CRS-dependent transform caches.

Parameters

newCanvasSRS The new canvas CRS.

Reimplemented from OpenSWMMVisLayer.

◆ openAsync()

void GISVectorLayer::openAsync	(	const QString &	filePath,
		const QString &	layerName = `{}`
	)

Asynchronously open filePath / layerName. GDALOpenEx + GetExtent (which forces a scan on some drivers) run on a worker thread; the layer is populated on the GUI thread and openFinished(bool) fires on completion. Construct with an empty path first; the synchronous openDataset path (tests / project restore) is unchanged.

◆ openDataset()

void GISVectorLayer::openDataset	(	const QString &	filePath,
		const QString &	layerName
	)

protected

Open filePath / layerName synchronously.

Protected rather than private because a subclass may produce its own dataset — WFSLayer fetches one over the network and hands GDAL the bytes — and has to open and close it itself.

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◆ openFinished

void GISVectorLayer::openFinished ( bool ok )

signal

Emitted on the GUI thread when openAsync() completes.

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◆ openFlags()

unsigned GISVectorLayer::openFlags ( ) const

inlineprotected

◆ populateScene()

void GISVectorLayer::populateScene	(	QGraphicsScene *	scene,
		const MapExtent &	canvasExtent,
		const SpatialReferenceSystem *	canvasSRS
	)

overridevirtual

Creates / updates QGraphicsItems representing this layer in the scene.

Derived classes override this to add their items to the scene. Items should be created in scene coordinates (= map CRS coordinates) after reprojecting from the layer's native CRS.

Called by the MapCanvas when:

The layer is first added.
The canvas CRS changes (after onCanvasCRSChanged).
The layer data changes (model loaded, tile fetched, etc.).

Parameters

scene	The shared OpenSWMMVisScene to add items to.
canvasExtent	Visible extent in canvas-CRS coordinates.
canvasSRS	The CRS currently used by the MapCanvas.

Implements OpenSWMMVisLayer.

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◆ refreshScene()

void GISVectorLayer::refreshScene	(	QGraphicsScene *	scene,
		const MapExtent &	canvasExtent,
		const SpatialReferenceSystem *	canvasSRS
	)

overridevirtual

Smart scene refresh — updates existing items instead of destroying and recreating.

Override in subclasses to provide efficient incremental updates. The default implementation calls depopulateScene() then populateScene(), which is backward-compatible but causes flicker for raster/tile layers.

Raster/WMS layers should override to keep persistent scene items and update them in-place. Vector layers should override to skip rebuilding when only the view extent has changed (items are already in scene coords).

Reimplemented from OpenSWMMVisLayer.

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◆ renderer()

OpenSWMM::Render::IFeatureRenderer * GISVectorLayer::renderer ( ) const

virtual

The IFeatureRenderer that will drive this layer's paint pass.

Constructed eagerly as a default SingleSymbolRenderer so callers never have to null-check. Owned by the layer.

Reimplemented from OpenSWMMVisLayer.

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◆ rendererChanged

void GISVectorLayer::rendererChanged ( )

signal

Emitted when setRenderer() swaps the renderer pointer.

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◆ ruleList() [1/2]

const OpenSWMM::Render::RuleList * GISVectorLayer::ruleList ( ) const

overridevirtual

Reimplemented from OpenSWMMVisLayer.

◆ ruleList() [2/2]

OpenSWMM::Render::RuleList * GISVectorLayer::ruleList ( )

overridevirtual

Reimplemented from OpenSWMMVisLayer.

◆ selectedFeatureAnchors()

QVector< QPointF > GISVectorLayer::selectedFeatureAnchors ( ) const

Scene-space centres of the selected features' items — beacon anchors for MapCanvas::flashSelection.

◆ selectedFeatureIds()

QSet< long long > GISVectorLayer::selectedFeatureIds ( ) const

Returns the set of currently selected feature IDs.

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◆ selectionChanged

void GISVectorLayer::selectionChanged ( const QSet< long long > & selectedIds )

signal

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◆ setFilterExpression()

void GISVectorLayer::setFilterExpression ( const QString & expr )

Sets an OGR SQL WHERE-clause filter on the features.

Parameters

expr	OGR attribute filter, e.g. "population > 1000000". Pass an empty string to remove the filter.

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◆ setLabelConfig()

void GISVectorLayer::setLabelConfig ( const OpenSWMM::Render::LabelConfig & cfg )

overridevirtual

Slice X.18 — full label configuration.

   Wraps the legacy `GISVectorSymbol::showLabels` /
   `labelField` / `labelFont` / `labelColor` fields plus
   halo, placement, and scale-range so the Labels tab of
   LayerStyleDialog has somewhere coherent to write.

Reimplemented from OpenSWMMVisLayer.

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◆ setOpenFlags()

void GISVectorLayer::setOpenFlags ( unsigned flags )

inlineprotected

GDALOpenEx flags used by openDataset and openAsync.

Read-only by default — every vector source in the application is read-only except an editable feature layer. FeatureLayer sets GDAL_OF_VECTOR | GDAL_OF_UPDATE via setOpenFlags so it can write through the same handle the paint loop reads, instead of re-opening the GeoPackage after every edit.

A subclass that changes the flags MUST construct with an empty filePath (the ctor only opens when the path is non-empty) and call openDataset itself afterwards; the base ctor runs before the subclass exists.

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◆ setRenderer()

void GISVectorLayer::setRenderer ( std::unique_ptr< OpenSWMM::Render::IFeatureRenderer > r )

virtual

Replaces the current renderer.

The layer takes ownership. A null pointer is rejected (the method silently no-ops). Emits rendererChanged() when the renderer pointer actually changes.

Reimplemented from OpenSWMMVisLayer.

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◆ setSelectedFeatureIds()

void GISVectorLayer::setSelectedFeatureIds ( const QSet< long long > & ids )

Selects the features with the given IDs (replacing any prior selection).

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◆ setSymbol()

void GISVectorLayer::setSymbol ( const GISVectorSymbol & symbol )

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◆ sourceDescription()

QString GISVectorLayer::sourceDescription ( ) const

overridevirtual

Human-readable source of this layer: a file path, a service URL, or a description for in-memory / derived layers.

Default empty — the dialog shows "(none)". Concrete layers override to return their real origin (e.g. modelFilePath(), resultsFilePath(), serviceUrl(), or "(generated mesh)").

Reimplemented from OpenSWMMVisLayer.

Reimplemented in WFSLayer.

◆ styleSubjects()

std::vector< std::unique_ptr< openswmmvis::ui::ILayerStyleSubject > > GISVectorLayer::styleSubjects ( )

overridevirtual

Slice U-7 — expose the GISVectorSymbol via a QObject adapter as the single styleable subject for the unified LayerStyleDialog.

Reimplemented from OpenSWMMVisLayer.

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◆ symbol()

GISVectorSymbol GISVectorLayer::symbol ( ) const

◆ symbolChanged

void GISVectorLayer::symbolChanged ( const GISVectorSymbol & symbol )

signal

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Property Documentation

◆ featureCount

int GISVectorLayer::featureCount

read

◆ filePath

QString GISVectorLayer::filePath

read

◆ filterExpr

QString GISVectorLayer::filterExpr

readwrite

◆ layerName

QString GISVectorLayer::layerName

read

◆ symbol

GISVectorSymbol GISVectorLayer::symbol

readwrite

The documentation for this class was generated from the following files:

/home/runner/work/openswmm.gui/openswmm.gui/include/layers/gisvectorlayer.h
/home/runner/work/openswmm.gui/openswmm.gui/src/layers/gisvectorlayer.cpp

Classes

Signals

Public Member Functions

Static Public Member Functions

Protected Member Functions

Properties

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ GISVectorLayer()

◆ ~GISVectorLayer()

Member Function Documentation

◆ appendScenePolygonsTo()

◆ availableAttributes()

◆ clearSelection()

◆ closeDataset()

◆ crsAssumed

◆ dataset()

◆ depopulateScene()

◆ enumerateSublayers()

◆ extendedMetadata()

◆ featureCount()

◆ featureCountChanged

◆ featureIdsInRect()

◆ fieldNames()

◆ filePath()

◆ filePathChanged

◆ filterExpression()

◆ filterExpressionChanged

◆ identifyAt() [1/2]

◆ identifyAt() [2/2]

◆ layerNameChanged

◆ markSceneDirty()

◆ ogrFieldNames()

◆ ogrLayer()

◆ ogrLayerName()

◆ onCanvasCRSChanged()

◆ openAsync()

◆ openDataset()

◆ openFinished

◆ openFlags()

◆ populateScene()

◆ refreshScene()

◆ renderer()

◆ rendererChanged

◆ ruleList() [1/2]

◆ ruleList() [2/2]

◆ selectedFeatureAnchors()

◆ selectedFeatureIds()

◆ selectionChanged

◆ setFilterExpression()

◆ setLabelConfig()

◆ setOpenFlags()

◆ setRenderer()

◆ setSelectedFeatureIds()

◆ setSymbol()

◆ sourceDescription()

◆ styleSubjects()

◆ symbol()

◆ symbolChanged

Property Documentation

◆ featureCount

◆ filePath

◆ filterExpr

◆ layerName

◆ symbol