QGIS API Documentation
2.2.0-Valmiera
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Represents a vector layer which manages a vector based data sets. More...
#include <qgsvectorlayer.h>
Classes | |
struct | GroupData |
struct | RangeData |
struct | TabData |
struct | ValueRelationData |
Public Types | |
enum | EditorLayout { GeneratedLayout = 0, TabLayout = 1, UiFileLayout = 2 } |
The different types to layout the attribute editor. More... | |
enum | EditType { LineEdit, UniqueValues, UniqueValuesEditable, ValueMap, Classification, EditRange, SliderRange, CheckBox, FileName, Enumeration, Immutable, Hidden, TextEdit, Calendar, DialRange, ValueRelation, UuidGenerator, Photo, WebView, Color, EditorWidgetV2 } |
enum | FeatureFormSuppress { SuppressDefault = 0, SuppressOn = 1, SuppressOff = 2 } |
Types of feature form suppression after feature creation. More... | |
enum | VertexMarkerType { SemiTransparentCircle, Cross, NoMarker } |
Editing vertex markers. More... | |
Public Types inherited from QgsMapLayer | |
enum | LayerType { VectorLayer, RasterLayer, PluginLayer } |
Layers enum defining the types of layers that can be added to a map. More... |
Public Slots | |
void | select (const QgsFeatureId &featureId) |
Select feature by its ID. | |
void | select (const QgsFeatureIds &featureIds) |
Select features by their ID. | |
void | deselect (const QgsFeatureId featureId) |
Deselect feature by its ID. | |
void | deselect (const QgsFeatureIds &featureIds) |
Deselect features by their ID. | |
void | removeSelection () |
Clear selection. | |
void | triggerRepaint () |
virtual void | updateExtents () |
Update the extents for the layer. | |
void | checkJoinLayerRemove (QString theLayerId) |
Check if there is a join with a layer that will be removed. | |
virtual void | onCacheImageDelete () |
Is called when the cache image is being deleted. | |
Public Slots inherited from QgsMapLayer | |
virtual void | invalidTransformInput () |
Event handler for when a coordinate transform fails due to bad vertex error. | |
void | setMinimumScale (float theMinScale) |
Accessor and mutator for the minimum scale denominator member. | |
float | minimumScale () const |
void | setMaximumScale (float theMaxScale) |
Accessor and mutator for the maximum scale denominator member. | |
float | maximumScale () const |
void | toggleScaleBasedVisibility (bool theVisibilityFlag) |
Accessor and mutator for the scale based visilibility flag. | |
bool | hasScaleBasedVisibility () const |
void | clearCacheImage () |
Clear cached image added in 1.5. | |
virtual QDateTime | timestamp () const |
Time stamp of data source in the moment when data/metadata were loaded by provider. |
Signals | |
void | selectionChanged (const QgsFeatureIds selected, const QgsFeatureIds deselected, const bool clearAndSelect) |
This signal is emitted when selection was changed. | |
void | selectionChanged () |
This signal is emitted when selection was changed. | |
void | layerModified () |
This signal is emitted when modifications has been done on layer. | |
void | editingStarted () |
Is emitted, when editing on this layer has started. | |
void | editingStopped () |
Is emitted, when edited changes successfully have been written to the data provider. | |
void | beforeCommitChanges () |
Is emitted, before changes are commited to the data provider. | |
void | beforeRollBack () |
Is emitted, before changes are rolled back. | |
void | attributeAdded (int idx) |
Will be emitted, when a new attribute has been added to this vector layer. | |
void | attributeDeleted (int idx) |
Will be emitted, when an attribute has been deleted from this vector layer. | |
void | featureAdded (QgsFeatureId fid) |
void | featureDeleted (QgsFeatureId fid) |
void | updatedFields () |
Is emitted, whenever the fields available from this layer have been changed. | |
void | layerDeleted () |
void | attributeValueChanged (QgsFeatureId fid, int idx, const QVariant &) |
void | geometryChanged (QgsFeatureId fid, QgsGeometry &geom) |
void | committedAttributesDeleted (const QString &layerId, const QgsAttributeList &deletedAttributes) |
Signals emitted after committing changes. | |
void | committedAttributesAdded (const QString &layerId, const QList< QgsField > &addedAttributes) |
void | committedFeaturesAdded (const QString &layerId, const QgsFeatureList &addedFeatures) |
void | committedFeaturesRemoved (const QString &layerId, const QgsFeatureIds &deletedFeatureIds) |
void | committedAttributeValuesChanges (const QString &layerId, const QgsChangedAttributesMap &changedAttributesValues) |
void | committedGeometriesChanges (const QString &layerId, const QgsGeometryMap &changedGeometries) |
void | saveLayerToProject () |
void | labelingFontNotFound (QgsVectorLayer *layer, const QString &fontfamily) |
Emitted when the font family defined for labeling layer is not found on system. | |
void | rendererChanged () |
Signal emitted on symbology changes, when setRendererV2() is called. | |
void | featureBlendModeChanged (const QPainter::CompositionMode &blendMode) |
Signal emitted when setFeatureBlendMode() is called. | |
void | layerTransparencyChanged (int layerTransparency) |
Signal emitted when setLayerTransparency() is called. | |
void | editCommandStarted (const QString &text) |
Signal emitted when a new edit command has been started. | |
void | editCommandEnded () |
Signal emitted, when an edit command successfully ended. | |
void | editCommandDestroyed () |
Signal emitted, whan an edit command is destroyed. | |
Signals inherited from QgsMapLayer | |
void | drawingProgress (int theProgress, int theTotalSteps) |
Emit a signal to notify of a progress event. | |
void | statusChanged (QString theStatus) |
Emit a signal with status (e.g. | |
void | layerNameChanged () |
Emit a signal that the layer name has been changed. | |
void | layerCrsChanged () |
Emit a signal that layer's CRS has been reset added in 1.4. | |
void | repaintRequested () |
This signal should be connected with the slot QgsMapCanvas::refresh() | |
void | screenUpdateRequested () |
The layer emits this signal when a screen update is requested. | |
void | recalculateExtents () |
This is used to send a request that any mapcanvas using this layer update its extents. | |
void | dataChanged () |
data of layer changed added in 1.5 | |
void | blendModeChanged (const QPainter::CompositionMode &blendMode) |
Signal emitted when the blend mode is changed, through QgsMapLayer::setBlendMode() |
Public Member Functions | |
QgsVectorLayer (QString path=QString::null, QString baseName=QString::null, QString providerLib=QString::null, bool loadDefaultStyleFlag=true) | |
Constructor - creates a vector layer. | |
virtual | ~QgsVectorLayer () |
Destructor. | |
QString | storageType () const |
Returns the permanent storage type for this layer as a friendly name. | |
QString | capabilitiesString () const |
Capabilities for this layer in a friendly format. | |
QString | dataComment () const |
Returns a comment for the data in the layer. | |
void | setDisplayField (QString fldName="") |
Set the primary display field to be used in the identify results dialog. | |
const QString | displayField () const |
Returns the primary display field name used in the identify results dialog. | |
void | setDisplayExpression (const QString &displayExpression) |
Set the preview expression, used to create a human readable preview string. | |
const QString | displayExpression () |
Get the preview expression, used to create a human readable preview string. | |
QgsVectorDataProvider * | dataProvider () |
Returns the data provider. | |
const QgsVectorDataProvider * | dataProvider () const |
Returns the data provider in a const-correct manner. | |
void | setProviderEncoding (const QString &encoding) |
Sets the textencoding of the data provider. | |
void | setCoordinateSystem () |
Setup the coordinate system tranformation for the layer. | |
void | addJoin (const QgsVectorJoinInfo &joinInfo) |
Joins another vector layer to this layer. | |
void | removeJoin (const QString &joinLayerId) |
Removes a vector layer join. | |
const QList< QgsVectorJoinInfo > & | vectorJoins () const |
QgsLabel * | label () |
Get the label object associated with this layer. | |
const QgsLabel * | label () const |
QgsAttributeAction * | actions () |
int | selectedFeatureCount () |
The number of features that are selected in this layer. | |
void | select (QgsRectangle &rect, bool addToSelection) |
Select features found within the search rectangle (in layer's coordinates) | |
void | modifySelection (QgsFeatureIds selectIds, QgsFeatureIds deselectIds) |
Modifies the current selection on this layer. | |
void | invertSelection () |
Select not selected features and deselect selected ones. | |
void | selectAll () |
Select all the features. | |
QgsFeatureIds | allFeatureIds () |
Get all feature Ids. | |
void | invertSelectionInRectangle (QgsRectangle &rect) |
Invert selection of features found within the search rectangle (in layer's coordinates) | |
QgsFeatureList | selectedFeatures () |
Get a copy of the user-selected features. | |
const QgsFeatureIds & | selectedFeaturesIds () const |
Return reference to identifiers of selected features. | |
void | setSelectedFeatures (const QgsFeatureIds &ids) |
Change selection to the new set of features. | |
QgsRectangle | boundingBoxOfSelected () |
Returns the bounding box of the selected features. | |
void | setDiagramRenderer (QgsDiagramRendererV2 *r) |
Sets diagram rendering object (takes ownership) | |
const QgsDiagramRendererV2 * | diagramRenderer () const |
void | setDiagramLayerSettings (const QgsDiagramLayerSettings &s) |
const QgsDiagramLayerSettings * | diagramLayerSettings () const |
QgsFeatureRendererV2 * | rendererV2 () |
Return renderer V2. | |
void | setRendererV2 (QgsFeatureRendererV2 *r) |
Set renderer V2. | |
void | drawRendererV2 (QgsFeatureIterator &fit, QgsRenderContext &rendererContext, bool labeling) |
Draw layer with renderer V2. | |
void | drawRendererV2Levels (QgsFeatureIterator &fit, QgsRenderContext &rendererContext, bool labeling) |
Draw layer with renderer V2 using symbol levels. | |
QGis::GeometryType | geometryType () const |
Returns point, line or polygon. | |
bool | hasGeometryType () const |
Returns true if this is a geometry layer and false in case of NoGeometry (table only) or UnknownGeometry. | |
QGis::WkbType | wkbType () const |
Returns the WKBType or WKBUnknown in case of error. | |
QString | providerType () const |
Return the provider type for this layer. | |
virtual bool | readXml (const QDomNode &layer_node) |
reads vector layer specific state from project file Dom node. | |
virtual bool | writeXml (QDomNode &layer_node, QDomDocument &doc) |
write vector layer specific state to project file Dom node. | |
virtual void | saveStyleToDatabase (QString name, QString description, bool useAsDefault, QString uiFileContent, QString &msgError) |
Save named and sld style of the layer to the style table in the db. | |
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 | getStyleFromDatabase (QString styleId, QString &msgError) |
Will return the named style corresponding to style id provided. | |
virtual QString | loadNamedStyle (const QString &theURI, bool &theResultFlag, bool loadFromLocalDb) |
Load a named style from file/local db/datasource db. | |
virtual QString | loadNamedStyle (const QString &theURI, bool &theResultFlag) |
Calls loadNamedStyle( theURI, theResultFlag, false ); Retained for backward compatibility. | |
virtual bool | applyNamedStyle (QString namedStyle, QString errorMsg) |
QgsAttributeEditorElement * | attributeEditorElementFromDomElement (QDomElement &elem, QObject *parent) |
convert a saved attribute editor element into a AttributeEditor structure as it's used internally. | |
bool | readSymbology (const QDomNode &node, QString &errorMessage) |
Read the symbology for the current layer from the Dom node supplied. | |
bool | writeSymbology (QDomNode &node, QDomDocument &doc, QString &errorMessage) const |
Write the symbology for the layer into the docment provided. | |
bool | writeSld (QDomNode &node, QDomDocument &doc, QString &errorMessage) const |
bool | readSld (const QDomNode &node, QString &errorMessage) |
virtual long | featureCount () const |
Number of features in the layer. | |
long | featureCount (QgsSymbolV2 *symbol) |
Number of features rendered with specified symbol. | |
bool | countSymbolFeatures (bool showProgress=true) |
Count features for symbols. | |
virtual bool | setSubsetString (QString subset) |
Set the string (typically sql) used to define a subset of the layer. | |
virtual QString | subsetString () |
Get the string (typically sql) used to define a subset of the layer. | |
QgsFeatureIterator | getFeatures (const QgsFeatureRequest &request=QgsFeatureRequest()) |
Query the provider for features specified in request. | |
bool | addFeature (QgsFeature &f, bool alsoUpdateExtent=true) |
Adds a feature. | |
bool | updateFeature (QgsFeature &f) |
Updates an existing feature. | |
bool | insertVertex (double x, double y, QgsFeatureId atFeatureId, int beforeVertex) |
Insert a new vertex before the given vertex number, in the given ring, item (first number is index 0), and feature Not meaningful for Point geometries. | |
bool | moveVertex (double x, double y, QgsFeatureId atFeatureId, int atVertex) |
Moves the vertex at the given position number, ring and item (first number is index 0), and feature to the given coordinates. | |
bool | deleteVertex (QgsFeatureId atFeatureId, int atVertex) |
Deletes a vertex from a feature. | |
bool | deleteSelectedFeatures () |
Deletes the selected features. | |
int | addRing (const QList< QgsPoint > &ring) |
Adds a ring to polygon/multipolygon features. | |
int | addPart (const QList< QgsPoint > &ring) |
Adds a new part polygon to a multipart feature. | |
int | translateFeature (QgsFeatureId featureId, double dx, double dy) |
Translates feature by dx, dy. | |
int | splitParts (const QList< QgsPoint > &splitLine, bool topologicalEditing=false) |
Splits parts cut by the given line. | |
int | splitFeatures (const QList< QgsPoint > &splitLine, bool topologicalEditing=false) |
Splits features cut by the given line. | |
Q_DECL_DEPRECATED int | removePolygonIntersections (QgsGeometry *geom, QgsFeatureIds ignoreFeatures=QgsFeatureIds()) |
Changes the specified geometry such that it has no intersections with other polygon (or multipolygon) geometries in this vector layer. | |
int | addTopologicalPoints (QgsGeometry *geom) |
Adds topological points for every vertex of the geometry. | |
int | addTopologicalPoints (const QgsPoint &p) |
Adds a vertex to segments which intersect point p but don't already have a vertex there. | |
int | insertSegmentVerticesForSnap (const QList< QgsSnappingResult > &snapResults) |
Inserts vertices to the snapped segments. | |
void | enableLabels (bool on) |
Set labels on. | |
bool | hasLabelsEnabled () const |
Label is on. | |
virtual bool | isEditable () const |
Returns true if the provider is in editing mode. | |
virtual bool | isReadOnly () const |
Returns true if the provider is in read-only mode. | |
virtual bool | isModified () const |
Returns true if the provider has been modified since the last commit. | |
bool | snapPoint (QgsPoint &point, double tolerance) |
Snaps a point to the closest vertex if there is one within the snapping tolerance. | |
int | snapWithContext (const QgsPoint &startPoint, double snappingTolerance, QMultiMap< double, QgsSnappingResult > &snappingResults, QgsSnapper::SnappingType snap_to) |
Snaps to segment or vertex within given tolerance. | |
virtual void | reload () |
Synchronises with changes in the datasource. | |
bool | draw (QgsRenderContext &rendererContext) |
Draws the layer. | |
void | drawLabels (QgsRenderContext &rendererContext) |
Draws the layer labels using coordinate transformation. | |
QgsRectangle | extent () |
Return the extent of the layer as a QRect. | |
const QgsFields & | pendingFields () const |
returns field list in the to-be-committed state | |
QgsAttributeList | pendingAllAttributesList () |
returns list of attributes | |
QgsAttributeList | pendingPkAttributesList () |
returns list of attribute making up the primary key | |
int | pendingFeatureCount () |
returns feature count after commit | |
bool | setReadOnly (bool readonly=true) |
Make layer read-only (editing disabled) or not. | |
bool | startEditing () |
Make layer editable. | |
bool | changeGeometry (QgsFeatureId fid, QgsGeometry *geom) |
change feature's geometry | |
Q_DECL_DEPRECATED bool | changeAttributeValue (QgsFeatureId fid, int field, QVariant value, bool emitSignal) |
Changes an attribute value (but does not commit it) | |
bool | changeAttributeValue (QgsFeatureId fid, int field, const QVariant &newValue, const QVariant &oldValue=QVariant()) |
Changes an attribute value (but does not commit it) | |
bool | addAttribute (const QgsField &field) |
add an attribute field (but does not commit it) returns true if the field was added | |
void | addAttributeAlias (int attIndex, QString aliasString) |
Sets an alias (a display name) for attributes to display in dialogs. | |
void | addAttributeEditorWidget (QgsAttributeEditorElement *data) |
Adds a tab (for the attribute editor form) holding groups and fields. | |
const QString | editorWidgetV2 (int fieldIdx) |
Get the id for the editor widget used to represent the field at the given index. | |
const QgsEditorWidgetConfig | editorWidgetV2Config (int fieldIdx) |
Get the configuration for the editor widget used to represent the field at the given index. | |
QList < QgsAttributeEditorElement * > & | attributeEditorElements () |
Returns a list of tabs holding groups and fields. | |
void | clearAttributeEditorWidgets () |
Clears all the tabs for the attribute editor form. | |
QString | attributeAlias (int attributeIndex) const |
Returns the alias of an attribute name or an empty string if there is no alias. | |
QString | attributeDisplayName (int attributeIndex) const |
Convenience function that returns the attribute alias if defined or the field name else. | |
const QMap< QString, QString > & | attributeAliases () const |
const QSet< QString > & | excludeAttributesWMS () const |
void | setExcludeAttributesWMS (const QSet< QString > &att) |
const QSet< QString > & | excludeAttributesWFS () const |
void | setExcludeAttributesWFS (const QSet< QString > &att) |
bool | deleteAttribute (int attr) |
delete an attribute field (but does not commit it) | |
bool | deleteAttributes (QList< int > attrs) |
Deletes a list of attribute fields (but does not commit it) | |
bool | addFeatures (QgsFeatureList features, bool makeSelected=true) |
Insert a copy of the given features into the layer (but does not commit it) | |
bool | deleteFeature (QgsFeatureId fid) |
delete a feature from the layer (but does not commit it) | |
bool | commitChanges () |
Attempts to commit any changes to disk. | |
const QStringList & | commitErrors () |
bool | rollBack (bool deleteBuffer=true) |
Stop editing and discard the edits. | |
EditType | editType (int idx) |
get edit type | |
void | setEditType (int idx, EditType edit) |
set edit type | |
EditorLayout | editorLayout () |
get the active layout for the attribute editor for this layer (added in 1.9) | |
void | setEditorLayout (EditorLayout editorLayout) |
set the active layout for the attribute editor for this layer (added in 1.9) | |
void | setEditorWidgetV2 (int attrIdx, const QString &widgetType) |
void | setEditorWidgetV2Config (int attrIdx, const QMap< QString, QVariant > &config) |
void | setCheckedState (int idx, QString checked, QString notChecked) |
set string representing 'true' for a checkbox (added in 1.4) | |
QPair< QString, QString > | checkedState (int idx) |
return string representing 'true' for a checkbox (added in 1.4) | |
QString | editForm () |
get edit form (added in 1.4) | |
void | setEditForm (QString ui) |
set edit form (added in 1.4) | |
QgsVectorLayer::FeatureFormSuppress | featureFormSuppress () const |
Type of feature form pop-up suppression after feature creation (overrides app setting) | |
void | setFeatureFormSuppress (QgsVectorLayer::FeatureFormSuppress s) |
Set type of feature form pop-up suppression after feature creation (overrides app setting) | |
QString | annotationForm () const |
get annotation form (added in 1.5) | |
void | setAnnotationForm (const QString &ui) |
set annotation form for layer (added in 1.5) | |
QString | editFormInit () |
get python function for edit form initialization (added in 1.4) | |
void | setEditFormInit (QString function) |
set python function for edit form initialization (added in 1.4) | |
QMap< QString, QVariant > & | valueMap (int idx) |
access value map | |
RangeData & | range (int idx) |
access range | |
ValueRelationData & | valueRelation (int idx) |
access relations | |
QList< QgsRelation > | referencingRelations (int idx) |
Get relations, where the foreign key is on this layer. | |
QString & | dateFormat (int idx) |
access date format | |
QSize & | widgetSize (int idx) |
access widget size for photo and webview widget | |
bool | fieldEditable (int idx) |
is edit widget editable | |
bool | labelOnTop (int idx) |
label widget on top | |
void | setFieldEditable (int idx, bool editable) |
set edit widget editable | |
void | setLabelOnTop (int idx, bool onTop) |
label widget on top | |
QgsVectorLayerEditBuffer * | editBuffer () |
Buffer with uncommitted editing operations. Only valid after editing has been turned on. | |
void | beginEditCommand (QString text) |
Create edit command for undo/redo operations. | |
void | endEditCommand () |
Finish edit command and add it to undo/redo stack. | |
void | destroyEditCommand () |
Destroy active command and reverts all changes in it. | |
int | fieldNameIndex (const QString &fieldName) const |
Returns the index of a field name or -1 if the field does not exist. | |
void | updateFields () |
Assembles mUpdatedFields considering provider fields, joined fields and added fields. | |
void | createJoinCaches () |
Caches joined attributes if required (and not already done) | |
void | uniqueValues (int index, QList< QVariant > &uniqueValues, int limit=-1) |
Returns unique values for column. | |
QVariant | minimumValue (int index) |
Returns minimum value for an attribute column or invalid variant in case of error. | |
QVariant | maximumValue (int index) |
Returns maximum value for an attribute column or invalid variant in case of error. | |
void | setFeatureBlendMode (const QPainter::CompositionMode &blendMode) |
Write blend mode for features. | |
QPainter::CompositionMode | featureBlendMode () const |
Read blend mode for layer. | |
void | setLayerTransparency (int layerTransparency) |
Write transparency for layer. | |
int | layerTransparency () const |
Read transparency for layer. | |
QString | metadata () |
Obtain Metadata for this layer. | |
QgsGeometryCache * | cache () |
void | setSimplifyMethod (const QgsVectorSimplifyMethod &simplifyMethod) |
Set the simplification settings for fast rendering of features. | |
const QgsVectorSimplifyMethod & | simplifyMethod () const |
Returns the simplification settings for fast rendering of features. | |
bool | simplifyDrawingCanbeApplied (const QgsRenderContext &renderContext, QgsVectorSimplifyMethod::SimplifyHint simplifyHint) const |
Returns whether the VectorLayer can apply the specified simplification hint. | |
Public Member Functions inherited from QgsMapLayer | |
QgsMapLayer (QgsMapLayer::LayerType type=VectorLayer, QString lyrname=QString::null, QString source=QString::null) | |
Constructor. | |
virtual | ~QgsMapLayer () |
Destructor. | |
QgsMapLayer::LayerType | type () const |
Get the type of the layer. | |
QString | id () const |
Get this layer's unique ID, this ID is used to access this layer from map layer registry. | |
void | setLayerName (const QString &name) |
Set the display name of the layer. | |
const QString & | name () const |
Get the display name of the layer. | |
const QString & | originalName () const |
Get the original name of the layer. | |
void | setTitle (const QString &title) |
const QString & | title () const |
void | setAbstract (const QString &abstract) |
const QString & | abstract () const |
void | setKeywordList (const QString &keywords) |
const QString & | keywordList () const |
void | setDataUrl (const QString &dataUrl) |
const QString & | dataUrl () const |
void | setDataUrlFormat (const QString &dataUrlFormat) |
const QString & | dataUrlFormat () const |
void | setAttribution (const QString &attrib) |
const QString & | attribution () const |
void | setAttributionUrl (const QString &attribUrl) |
const QString & | attributionUrl () const |
void | setMetadataUrl (const QString &metaUrl) |
const QString & | metadataUrl () const |
void | setMetadataUrlType (const QString &metaUrlType) |
const QString & | metadataUrlType () const |
void | setMetadataUrlFormat (const QString &metaUrlFormat) |
const QString & | metadataUrlFormat () const |
void | setBlendMode (const QPainter::CompositionMode &blendMode) |
Write blend mode for layer. | |
QPainter::CompositionMode | blendMode () const |
Read blend mode for layer. | |
bool | isValid () |
QString | publicSource () const |
const QString & | source () const |
Returns the source for the layer. | |
virtual QStringList | subLayers () const |
Returns the sublayers of this layer (Useful for providers that manage their own layers, such as WMS) | |
virtual void | setLayerOrder (const QStringList &layers) |
Reorders the previously selected sublayers of this layer from bottom to top (Useful for providers that manage their own layers, such as WMS) | |
virtual void | setSubLayerVisibility (QString name, bool vis) |
Set the visibility of the given sublayer name. | |
bool | readLayerXML (const QDomElement &layerElement) |
sets state from Dom document | |
bool | writeLayerXML (QDomElement &layerElement, QDomDocument &document) |
stores state in Dom node | |
void | setCustomProperty (const QString &key, const QVariant &value) |
Set a custom property for layer. | |
QVariant | customProperty (const QString &value, const QVariant &defaultValue=QVariant()) const |
Read a custom property from layer. | |
void | removeCustomProperty (const QString &key) |
Remove a custom property from layer. | |
virtual QString | lastErrorTitle () |
If an operation returns 0 (e.g. | |
virtual QString | lastError () |
If an operation returns 0 (e.g. | |
virtual QgsError | error () const |
Get current status error. | |
const QgsCoordinateReferenceSystem & | crs () const |
Returns layer's spatial reference system. | |
void | setCrs (const QgsCoordinateReferenceSystem &srs, bool emitSignal=true) |
Sets layer's spatial reference system. | |
virtual QString | styleURI () |
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 QString | loadDefaultStyle (bool &theResultFlag) |
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 bool | loadNamedStyleFromDb (const QString &db, const QString &theURI, QString &qml) |
virtual void | exportNamedStyle (QDomDocument &doc, QString &errorMsg) |
Export the properties of this layer as named style in a QDomDocument. | |
virtual void | exportSldStyle (QDomDocument &doc, QString &errorMsg) |
Export the properties of this layer as SLD style in a QDomDocument. | |
virtual QString | saveDefaultStyle (bool &theResultFlag) |
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 | saveNamedStyle (const QString &theURI, bool &theResultFlag) |
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 &theURI, bool &theResultFlag) |
virtual QString | loadSldStyle (const QString &theURI, bool &theResultFlag) |
QUndoStack * | undoStack () |
Return pointer to layer's undo stack. | |
QImage * | cacheImage () |
Get the QImage used for caching render operations. | |
void | setCacheImage (QImage *thepImage) |
Set the QImage used for caching render operations. | |
virtual void | onCacheImageDelete () |
Is called when the cache image is being deleted. |
Static Public Member Functions | |
static void | drawVertexMarker (double x, double y, QPainter &p, QgsVectorLayer::VertexMarkerType type, int vertexSize) |
Draws a vertex symbol at (screen) coordinates x, y. | |
Static Public Member Functions inherited from QgsMapLayer | |
static QString | capitaliseLayerName (const QString &name) |
A convenience function to (un)capitalise the layer name. |
Protected Slots | |
void | invalidateSymbolCountedFlag () |
Protected Member Functions | |
void | setExtent (const QgsRectangle &rect) |
Set the extent. | |
Protected Member Functions inherited from QgsMapLayer | |
void | setValid (bool valid) |
set whether layer is valid or not - should be used in constructor. | |
void | readCustomProperties (const QDomNode &layerNode, const QString &keyStartsWith="") |
Read custom properties from project file. | |
void | writeCustomProperties (QDomNode &layerNode, QDomDocument &doc) const |
Write custom properties to project file. | |
void | connectNotify (const char *signal) |
debugging member - invoked when a connect() is made to this object | |
void | appendError (const QgsErrorMessage &theMessage) |
Add error message. | |
void | setError (const QgsError &theError) |
Set error message. |
Private Slots | |
void | onRelationsLoaded () |
Private Member Functions | |
QgsVectorLayer (const QgsVectorLayer &rhs) | |
vector layers are not copyable | |
QgsVectorLayer & | operator= (QgsVectorLayer const &rhs) |
vector layers are not copyable | |
bool | setDataProvider (QString const &provider) |
bind layer to a specific data provider | |
QgsFeatureId | findFreeId () |
Goes through all features and finds a free id (e.g. | |
void | snapToGeometry (const QgsPoint &startPoint, QgsFeatureId featureId, QgsGeometry *geom, double sqrSnappingTolerance, QMultiMap< double, QgsSnappingResult > &snappingResults, QgsSnapper::SnappingType snap_to) const |
Snaps to a geometry and adds the result to the multimap if it is within the snapping result. | |
void | stopRendererV2 (QgsRenderContext &rendererContext, QgsSingleSymbolRendererV2 *selRenderer) |
Add joined attributes to a feature. | |
void | prepareLabelingAndDiagrams (QgsRenderContext &rendererContext, QgsAttributeList &attributes, bool &labeling) |
Registers label and diagram layer. | |
void | readSldLabeling (const QDomNode &node) |
Read labeling from SLD. |
Static Private Member Functions | |
static QgsVectorLayer::VertexMarkerType | currentVertexMarkerType () |
Reads vertex marker type from settings. | |
static int | currentVertexMarkerSize () |
Reads vertex marker size from settings. |
Private Attributes | |
int | mUpdateThreshold |
Update threshold for drawing features as they are read. | |
bool | mEnableBackbuffer |
Enables backbuffering for the map window. | |
QgsVectorDataProvider * | mDataProvider |
Pointer to data provider derived from the abastract base class QgsDataProvider. | |
QgsFeatureIterator | mProviderIterator |
QString | mDisplayField |
index of the primary label field | |
QString | mDisplayExpression |
the preview expression used to generate a human readable preview string for features | |
QString | mProviderKey |
Data provider key. | |
QgsAttributeAction * | mActions |
The user-defined actions that are accessed from the Identify Results dialog box. | |
bool | mReadOnly |
Flag indicating whether the layer is in read-only mode (editing disabled) or not. | |
QgsFeatureIds | mSelectedFeatureIds |
Set holding the feature IDs that are activated. | |
QgsFields | mUpdatedFields |
field map to commit | |
QMap< QString, QString > | mAttributeAliasMap |
Map that stores the aliases for attributes. | |
QList < QgsAttributeEditorElement * > | mAttributeEditorElements |
Stores a list of attribute editor elements (Each holding a tree structure for a tab in the attribute editor) | |
QSet< QString > | mExcludeAttributesWMS |
Attributes which are not published in WMS. | |
QSet< QString > | mExcludeAttributesWFS |
Attributes which are not published in WFS. | |
QList< TabData > | mTabs |
Map that stores the tab for attributes in the edit form. | |
int | mWkbType |
Geometry type as defined in enum WkbType (qgis.h) | |
QgsFeatureRendererV2 * | mRendererV2 |
Renderer object which holds the information about how to display the features. | |
QgsVectorSimplifyMethod | mSimplifyMethod |
Simplification object which holds the information about how to simplify the features for fast rendering. | |
QgsLabel * | mLabel |
Label. | |
bool | mLabelOn |
Display labels. | |
bool | mLabelFontNotFoundNotified |
Whether 'labeling font not found' has be shown for this layer (only show once in QgsMessageBar, on first rendering) | |
QPainter::CompositionMode | mFeatureBlendMode |
Blend mode for features. | |
int | mLayerTransparency |
Layer transparency. | |
QgsVectorLayer::VertexMarkerType | mCurrentVertexMarkerType |
The current type of editing marker. | |
int | mCurrentVertexMarkerSize |
The current size of editing marker. | |
bool | mVertexMarkerOnlyForSelection |
Flag if the vertex markers should be drawn only for selection (true) or for all features (false) | |
QStringList | mCommitErrors |
QMap< QString, EditType > | mEditTypes |
QMap< QString, bool > | mFieldEditables |
QMap< QString, bool > | mLabelOnTop |
QMap< QString, QMap< QString, QVariant > > | mValueMaps |
QMap< QString, RangeData > | mRanges |
QMap< QString, QPair< QString, QString > > | mCheckedStates |
QMap< QString, ValueRelationData > | mValueRelations |
QMap< QString, QString > | mDateFormats |
QMap< QString, QSize > | mWidgetSize |
QMap< int, QString > | mEditorWidgetV2Types |
QMap< int, QMap< QString, QVariant > > | mEditorWidgetV2Configs |
EditorLayout | mEditorLayout |
Defines the default layout to use for the attribute editor (Drag and drop, UI File, Generated) | |
QString | mEditForm |
QString | mEditFormInit |
QgsVectorLayer::FeatureFormSuppress | mFeatureFormSuppress |
Type of feature form suppression after feature creation. | |
QString | mAnnotationForm |
QgsGeometryCache * | mCache |
cache for some vector layer data - currently only geometries for faster editing | |
QgsVectorLayerEditBuffer * | mEditBuffer |
stores information about uncommitted changes to layer | |
QgsVectorLayerJoinBuffer * | mJoinBuffer |
QgsDiagramRendererV2 * | mDiagramRenderer |
QgsDiagramLayerSettings * | mDiagramLayerSettings |
bool | mValidExtent |
bool | mLazyExtent |
bool | mSymbolFeatureCounted |
QMap< QgsSymbolV2 *, long > | mSymbolFeatureCountMap |
QgsRenderContext * | mCurrentRendererContext |
Friends | |
class | QgsVectorLayerEditBuffer |
class | QgsVectorLayerFeatureIterator |
Additional Inherited Members | |
Protected Attributes inherited from QgsMapLayer | |
QgsRectangle | mExtent |
Extent of the layer. | |
bool | mValid |
Indicates if the layer is valid and can be drawn. | |
QString | mDataSource |
data source description string, varies by layer type | |
QString | mLayerName |
Name of the layer - used for display. | |
QString | mLayerOrigName |
Original name of the layer. | |
QString | mTitle |
QString | mAbstract |
Description of the layer. | |
QString | mKeywordList |
QString | mDataUrl |
DataUrl of the layer. | |
QString | mDataUrlFormat |
QString | mAttribution |
Attribution of the layer. | |
QString | mAttributionUrl |
QString | mMetadataUrl |
MetadataUrl of the layer. | |
QString | mMetadataUrlType |
QString | mMetadataUrlFormat |
QgsError | mError |
Error. |
Represents a vector layer which manages a vector based data sets.
The QgsVectorLayer is instantiated by specifying the name of a data provider, such as postgres or wfs, and url defining the specific data set to connect to. The vector layer constructor in turn instantiates a QgsVectorDataProvider subclass corresponding to the provider type, and passes it the url. The data provider connects to the data source.
The QgsVectorLayer provides a common interface to the different data types. It also manages editing transactions.
Sample usage of the QgsVectorLayer class:
The main data providers supported by QGIS are listed below.
The memory data provider is used to construct in memory data, for example scratch data or data generated from spatial operations such as contouring. There is no inherent persistent storage of the data. The data source uri is constructed. The url specifies the geometry type ("point", "linestring", "polygon", "multipoint","multilinestring","multipolygon"), optionally followed by url parameters as follows:
An example url is "Point?crs=epsg:4326&field=id:integer&field=name:string(20)&index=yes"
Accesses data using the OGR drivers (http://www.gdal.org/ogr/ogr_formats.html). The url is the OGR connection string. A wide variety of data formats can be accessed using this driver, including file based formats used by many GIS systems, database formats, and web services. Some of these formats are also supported by custom data providers listed below.
Access data in a spatialite database. The url defines the connection parameters, table, geometry column, and other attributes. The url can be constructed using the QgsDataSourceURI class.
Connects to a postgresql database. The url defines the connection parameters, table, geometry column, and other attributes. The url can be constructed using the QgsDataSourceURI class.
Connects to a Microsoft SQL server database. The url defines the connection parameters, table, geometry column, and other attributes. The url can be constructed using the QgsDataSourceURI class.
Connects to an SQLanywhere database. The url defines the connection parameters, table, geometry column, and other attributes. The url can be constructed using the QgsDataSourceURI class.
Used to access data provided by a web feature service.
The url can be a HTTP url to a WFS 1.0.0 server or a GML2 data file path. Examples are http://foobar/wfs or /foo/bar/file.gml
If a GML2 file path is provided the driver will attempt to read the schema from a file in the same directory with the same basename + “.xsd”. This xsd file must be in the same format as a WFS describe feature type response. If no xsd file is provide then the driver will attempt to guess the attribute types from the file.
In the case of a HTTP URL the ‘FILTER’ query string parameter can be used to filter the WFS feature type. The ‘FILTER’ key value can either be a QGIS expression or an OGC XML filter. If the value is set to a QGIS expression the driver will turn it into OGC XML filter before passing it to the WFS server. Beware the QGIS expression filter only supports” =, != ,<,> ,<= ,>= ,AND ,OR ,NOT, LIKE, IS NULL” attribute operators, “BBOX, Disjoint, Intersects, Touches, Crosses, Contains, Overlaps, Within” spatial binary operators and the QGIS local “geomFromWKT, geomFromGML” geometry constructor functions.
Also note:
Accesses data in a delimited text file, for example CSV files generated by spreadsheets. The contents of the file are split into columns based on specified delimiter characters. Each record may be represented spatially either by an X and Y coordinate column, or by a WKT (well known text) formatted columns.
The url defines the filename, the formatting options (how the text in the file is divided into data fields, and which fields contain the X,Y coordinates or WKT text definition. The options are specified as url query items.
At its simplest the url can just be the filename, in which case it will be loaded as a CSV formatted file.
The url may include the following items:
encoding=UTF-8
Defines the character encoding in the file. The default is UTF-8. To use the default encoding for the operating system use "System".
type=(csv|regexp|whitespace|plain)
Defines the algorithm used to split records into columns. Records are defined by new lines, except for csv format files for which quoted fields may span multiple records. The default type is csv.
delimiter=characters
Defines the delimiter characters used for csv and plain type files, or the regular expression for regexp type files. It is a literal string of characters except that "\t" may be used to represent a tab character.
quote=characters
Defines the characters that are used as quote characters for csv and plain type files.
escape=characters
Defines the characters used to escape delimiter, quote, and newline characters.
skipLines=n
Defines the number of lines to ignore at the beginning of the file (default 0)
useHeader=(yes|no)
Defines whether the first record in the file (after skipped lines) contains column names (default yes)
trimFields=(yes|no)
If yes then leading and trailing whitespace will be removed from fields
skipEmptyFields=(yes|no)
If yes then empty fields will be discarded (eqivalent to concatenating consecutive delimiters)
maxFields=#
Specifies the maximum number of fields to load for each record. Additional fields will be discarded. Default is 0 - load all fields.
decimalPoint=c
Defines a character that is used as a decimal point in the numeric columns The default is '.'.
xField=column yField=column
Defines the name of the columns holding the x and y coordinates for XY point geometries. If the useHeader is no (ie there are no column names), then this is the column number (with the first column as 1).
xyDms=(yes|no)
If yes then the X and Y coordinates are interpreted as degrees/minutes/seconds format (fairly permissively), or degree/minutes format.
wktField=column
Defines the name of the columns holding the WKT geometry definition for WKT geometries. If the useHeader is no (ie there are no column names), then this is the column number (with the first column as 1).
geomType=(point|line|polygon|none)
Defines the geometry type for WKT type geometries. QGIS will only display one type of geometry for the layer - any others will be ignored when the file is loaded. By default the provider uses the type of the first geometry in the file. Use geomType to override this type.
geomType can also be set to none, in which case the layer is loaded without geometries.
subset=expression
Defines an expression that will identify a subset of records to display
crs=crsstring
Defines the coordinate reference system used for the layer. This can be any string accepted by QgsCoordinateReferenceSystem::createFromString()
-subsetIndex=(yes|no)
Determines whether the provider generates an index to improve the efficiency of subsets. The default is yes
-spatialIndex=(yes|no)
Determines whether the provider generates a spatial index. The default is no.
-watchFile=(yes|no)
Defines whether the file will be monitored for changes. The default is to monitor for changes.
quiet
Errors encountered loading the file will not be reported in a user dialog if quiet is included (They will still be shown in the output log).
Provider reads tracks, routes, and waypoints from a GPX file. The url defines the name of the file, and the type of data to retrieve from it ("track", "route", or "waypoint").
An example url is "/home/user/data/holiday.gpx?type=route"
Provider to display vector data in a GRASS GIS layer.
Definition at line 451 of file qgsvectorlayer.h.
The different types to layout the attribute editor.
Definition at line 457 of file qgsvectorlayer.h.
Definition at line 464 of file qgsvectorlayer.h.
Types of feature form suppression after feature creation.
Definition at line 491 of file qgsvectorlayer.h.
Editing vertex markers.
Definition at line 1322 of file qgsvectorlayer.h.
QgsVectorLayer::QgsVectorLayer | ( | QString | path = QString::null , |
QString | baseName = QString::null , |
||
QString | providerLib = QString::null , |
||
bool | loadDefaultStyleFlag = true |
||
) |
Constructor - creates a vector layer.
The QgsVectorLayer is constructed by instantiating a data provider. The provider interprets the supplied path (url) of the data source to connect to and access the data.
path | The path or url of the parameter. Typically this encodes parameters used by the data provider as url query items. |
baseName | The name used to represent the layer in the legend |
providerLib | The name of the data provider, eg "memory", "postgres" |
loadDefaultStyleFlag | whether to load the default style |
Definition at line 116 of file qgsvectorlayer.cpp.
References checkJoinLayerRemove(), QgsFeatureRendererV2::defaultRenderer(), QgsVectorSimplifyMethod::forceLocalOptimization(), geometryType(), hasGeometryType(), QgsMapLayerRegistry::instance(), QgsProject::instance(), QgsMapLayer::loadDefaultStyle(), mActions, QgsVectorSimplifyMethod::maximumScale(), mProviderKey, mSimplifyMethod, QgsMapLayer::mValid, onRelationsLoaded(), selectionChanged(), setCoordinateSystem(), setDataProvider(), QgsVectorSimplifyMethod::setForceLocalOptimization(), QgsVectorSimplifyMethod::setMaximumScale(), setRendererV2(), QgsVectorSimplifyMethod::setSimplifyHints(), QgsVectorSimplifyMethod::setThreshold(), QgsVectorSimplifyMethod::simplifyHints(), and QgsVectorSimplifyMethod::threshold().
|
virtual |
Destructor.
Definition at line 198 of file qgsvectorlayer.cpp.
References layerDeleted(), mActions, mCache, mDataProvider, mDiagramLayerSettings, mEditBuffer, mJoinBuffer, mLabel, mRendererV2, QgsMapLayer::mValid, and QgsDebugMsg.
|
private |
vector layers are not copyable
|
inline |
Definition at line 636 of file qgsvectorlayer.h.
Referenced by QgsAttributeTableModel::executeAction(), and QgsDualView::viewWillShowContextMenu().
bool QgsVectorLayer::addAttribute | ( | const QgsField & | field | ) |
add an attribute field (but does not commit it) returns true if the field was added
Definition at line 2591 of file qgsvectorlayer.cpp.
References QgsVectorLayerEditBuffer::addAttribute(), mDataProvider, and mEditBuffer.
Referenced by QgsOfflineEditing::applyAttributesAdded().
void QgsVectorLayer::addAttributeAlias | ( | int | attIndex, |
QString | aliasString | ||
) |
Sets an alias (a display name) for attributes to display in dialogs.
Definition at line 2599 of file qgsvectorlayer.cpp.
References layerModified(), mAttributeAliasMap, QgsMapLayer::name(), and pendingFields().
void QgsVectorLayer::addAttributeEditorWidget | ( | QgsAttributeEditorElement * | data | ) |
Adds a tab (for the attribute editor form) holding groups and fields.
Definition at line 2610 of file qgsvectorlayer.cpp.
References mAttributeEditorElements.
bool QgsVectorLayer::addFeature | ( | QgsFeature & | f, |
bool | alsoUpdateExtent = true |
||
) |
Adds a feature.
f | feature to add |
alsoUpdateExtent | If True, will also go to the effort of e.g. updating the extents. |
Definition at line 1317 of file qgsvectorlayer.cpp.
References QgsVectorLayerEditBuffer::addFeature(), mDataProvider, mEditBuffer, and updateExtents().
Referenced by QgsOfflineEditing::applyFeaturesAdded(), and QgsOfflineEditing::copyVectorLayer().
bool QgsVectorLayer::addFeatures | ( | QgsFeatureList | features, |
bool | makeSelected = true |
||
) |
Insert a copy of the given features into the layer (but does not commit it)
Definition at line 2855 of file qgsvectorlayer.cpp.
References QgsVectorLayerEditBuffer::addFeatures(), mDataProvider, mEditBuffer, setSelectedFeatures(), and updateExtents().
void QgsVectorLayer::addJoin | ( | const QgsVectorJoinInfo & | joinInfo | ) |
Joins another vector layer to this layer.
joinInfo | join object containing join layer id, target and source field |
Definition at line 3344 of file qgsvectorlayer.cpp.
References QgsVectorLayerJoinBuffer::addJoin(), mJoinBuffer, and updateFields().
int QgsVectorLayer::addPart | ( | const QList< QgsPoint > & | ring | ) |
Adds a new part polygon to a multipart feature.
Definition at line 1443 of file qgsvectorlayer.cpp.
References QgsVectorLayerEditUtils::addPart(), mDataProvider, mEditBuffer, mSelectedFeatureIds, and QgsDebugMsg.
int QgsVectorLayer::addRing | ( | const QList< QgsPoint > & | ring | ) |
Adds a ring to polygon/multipolygon features.
Definition at line 1434 of file qgsvectorlayer.cpp.
References QgsVectorLayerEditUtils::addRing(), mDataProvider, and mEditBuffer.
int QgsVectorLayer::addTopologicalPoints | ( | QgsGeometry * | geom | ) |
Adds topological points for every vertex of the geometry.
geom | the geometry where each vertex is added to segments of other features |
Definition at line 1537 of file qgsvectorlayer.cpp.
References QgsVectorLayerEditUtils::addTopologicalPoints(), mDataProvider, and mEditBuffer.
int QgsVectorLayer::addTopologicalPoints | ( | const QgsPoint & | p | ) |
Adds a vertex to segments which intersect point p but don't already have a vertex there.
If a feature already has a vertex at position p, no additional vertex is inserted. This method is useful for topological editing.
p | position of the vertex |
Definition at line 1546 of file qgsvectorlayer.cpp.
References QgsVectorLayerEditUtils::addTopologicalPoints(), mDataProvider, and mEditBuffer.
QgsFeatureIds QgsVectorLayer::allFeatureIds | ( | ) |
Get all feature Ids.
Definition at line 877 of file qgsvectorlayer.cpp.
References getFeatures(), QgsFeature::id(), QgsFeatureIterator::nextFeature(), and QgsFeatureRequest::NoGeometry.
Referenced by invertSelection(), and selectAll().
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inline |
get annotation form (added in 1.5)
Definition at line 1240 of file qgsvectorlayer.h.
Referenced by QgsFormAnnotationItem::QgsFormAnnotationItem().
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virtual |
Definition at line 4440 of file qgsvectorlayer.cpp.
References readSymbology(), QgsMapLayer::setMaximumScale(), QgsMapLayer::setMinimumScale(), QgsMapLayer::toggleScaleBasedVisibility(), and tr.
Referenced by loadNamedStyle().
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signal |
Will be emitted, when a new attribute has been added to this vector layer.
Applies only to types QgsFields::OriginEdit and QgsFields::OriginProvider
idx | The index of the new attribute |
Referenced by startEditing().
QString QgsVectorLayer::attributeAlias | ( | int | attributeIndex | ) | const |
Returns the alias of an attribute name or an empty string if there is no alias.
Definition at line 2625 of file qgsvectorlayer.cpp.
References mAttributeAliasMap, QgsMapLayer::name(), and pendingFields().
Referenced by attributeDisplayName(), QgsAttributeTableModel::headerData(), QgsAttributeDialog::init(), and QgsComposerAttributeTable::initializeAliasMap().
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inline |
Definition at line 1151 of file qgsvectorlayer.h.
|
signal |
Will be emitted, when an attribute has been deleted from this vector layer.
Applies only to types QgsFields::OriginEdit and QgsFields::OriginProvider
idx | The index of the deleted attribute |
Referenced by startEditing().
QString QgsVectorLayer::attributeDisplayName | ( | int | attributeIndex | ) | const |
Convenience function that returns the attribute alias if defined or the field name else.
Definition at line 2635 of file qgsvectorlayer.cpp.
References attributeAlias(), QgsFields::count(), and pendingFields().
Referenced by QgsAttributeEditor::createWidgetFromDef(), QgsAttributeAction::expandAction(), and QgsAttributeDialog::init().
QgsAttributeEditorElement * QgsVectorLayer::attributeEditorElementFromDomElement | ( | QDomElement & | elem, |
QObject * | parent | ||
) |
convert a saved attribute editor element into a AttributeEditor structure as it's used internally.
elem | the DOM element |
parent | the QObject which will own this object |
Definition at line 2197 of file qgsvectorlayer.cpp.
References QgsAttributeEditorContainer::addChildElement(), dataProvider(), QgsVectorDataProvider::fieldNameMap(), and QgsMapLayer::name().
Referenced by readSymbology().
QList< QgsAttributeEditorElement * > & QgsVectorLayer::attributeEditorElements | ( | ) |
Returns a list of tabs holding groups and fields.
Definition at line 4268 of file qgsvectorlayer.cpp.
References mAttributeEditorElements.
Referenced by QgsAttributeDialog::init().
|
signal |
Referenced by startEditing().
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signal |
Is emitted, before changes are commited to the data provider.
Referenced by commitChanges().
|
signal |
Is emitted, before changes are rolled back.
Referenced by rollBack().
void QgsVectorLayer::beginEditCommand | ( | QString | text | ) |
Create edit command for undo/redo operations.
text | text which is to be displayed in undo window |
Definition at line 3294 of file qgsvectorlayer.cpp.
References editCommandStarted(), and QgsMapLayer::undoStack().
Referenced by QgsDualView::saveEditChanges(), and QgsAttributeTableDelegate::setModelData().
QgsRectangle QgsVectorLayer::boundingBoxOfSelected | ( | ) |
Returns the bounding box of the selected features.
If there is no selection, QgsRectangle(0,0,0,0) is returned
Definition at line 1023 of file qgsvectorlayer.cpp.
References QgsGeometry::boundingBox(), QgsVectorDataProvider::capabilities(), QgsRectangle::combineExtentWith(), QgsFeature::geometry(), getFeatures(), QgsRectangle::height(), QgsFeature::id(), mDataProvider, mSelectedFeatureIds, QgsFeatureIterator::nextFeature(), QgsVectorDataProvider::SelectAtId, QgsRectangle::set(), QgsRectangle::setMinimal(), QgsRectangle::width(), QgsRectangle::xMaximum(), QgsRectangle::xMinimum(), QgsRectangle::yMaximum(), and QgsRectangle::yMinimum().
Referenced by QgsGeometryAnalyzer::extent(), QgsMapCanvas::panToSelected(), and QgsMapCanvas::zoomToSelected().
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inline |
Definition at line 1377 of file qgsvectorlayer.h.
Referenced by QgsVectorLayerUndoCommand::cache().
QString QgsVectorLayer::capabilitiesString | ( | ) | const |
Capabilities for this layer in a friendly format.
Definition at line 228 of file qgsvectorlayer.cpp.
References QgsVectorDataProvider::capabilitiesString(), and mDataProvider.
Referenced by metadata().
bool QgsVectorLayer::changeAttributeValue | ( | QgsFeatureId | fid, |
int | field, | ||
QVariant | value, | ||
bool | emitSignal | ||
) |
Changes an attribute value (but does not commit it)
Definition at line 2577 of file qgsvectorlayer.cpp.
Referenced by QgsOfflineEditing::applyAttributeValueChanges(), QgsRelationEditorWidget::on_mLinkFeatureButton_clicked(), QgsRelationEditorWidget::on_mUnlinkFeatureButton_clicked(), QgsDualView::saveEditChanges(), QgsAttributeTableDelegate::setModelData(), and updateFeature().
bool QgsVectorLayer::changeAttributeValue | ( | QgsFeatureId | fid, |
int | field, | ||
const QVariant & | newValue, | ||
const QVariant & | oldValue = QVariant() |
||
) |
Changes an attribute value (but does not commit it)
fid | The feature id of the feature to be changed |
field | The index of the field to be updated |
newValue | The value which will be assigned to the field |
oldValue | The previous value to restore on undo (will otherwise be retrieved) |
Definition at line 2583 of file qgsvectorlayer.cpp.
References QgsVectorLayerEditBuffer::changeAttributeValue(), mDataProvider, and mEditBuffer.
bool QgsVectorLayer::changeGeometry | ( | QgsFeatureId | fid, |
QgsGeometry * | geom | ||
) |
change feature's geometry
Definition at line 2564 of file qgsvectorlayer.cpp.
References QgsVectorLayerEditBuffer::changeGeometry(), mDataProvider, mEditBuffer, and updateExtents().
Referenced by QgsOfflineEditing::applyGeometryChanges(), and updateFeature().
QPair< QString, QString > QgsVectorLayer::checkedState | ( | int | idx | ) |
return string representing 'true' for a checkbox (added in 1.4)
Definition at line 3321 of file qgsvectorlayer.cpp.
References QgsFields::count(), mCheckedStates, QgsMapLayer::name(), and pendingFields().
Referenced by QgsAttributeEditor::retrieveValue(), and QgsAttributeEditor::setValue().
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slot |
Check if there is a join with a layer that will be removed.
Definition at line 3350 of file qgsvectorlayer.cpp.
References removeJoin().
Referenced by QgsVectorLayer(), and readXml().
void QgsVectorLayer::clearAttributeEditorWidgets | ( | ) |
Clears all the tabs for the attribute editor form.
Definition at line 4273 of file qgsvectorlayer.cpp.
References mAttributeEditorElements.
bool QgsVectorLayer::commitChanges | ( | ) |
Attempts to commit any changes to disk.
Returns the result of the attempt. If a commit fails, the in-memory changes are left alone.
This allows editing to continue if the commit failed on e.g. a disallowed value in a Postgres database - the user can re-edit and try again.
The commits occur in distinct stages, (add attributes, add features, change attribute values, change geometries, delete features, delete attributes) so if a stage fails, it's difficult to roll back cleanly. Therefore any error message also includes which stage failed so that the user has some chance of repairing the damage cleanly.
Definition at line 2725 of file qgsvectorlayer.cpp.
References beforeCommitChanges(), QgsVectorLayerEditBuffer::commitChanges(), QgsGeometryCache::deleteCachedGeometries(), editingStopped(), QgsMessageLog::logMessage(), mCache, mCommitErrors, mDataProvider, mEditBuffer, QgsMapLayer::setCacheImage(), tr, QgsMapLayer::undoStack(), QgsDataProvider::updateExtents(), and updateFields().
Referenced by QgsOfflineEditing::copyVectorLayer(), and QgsOfflineEditing::synchronize().
const QStringList & QgsVectorLayer::commitErrors | ( | ) |
Definition at line 2771 of file qgsvectorlayer.cpp.
References mCommitErrors.
Referenced by QgsOfflineEditing::copyVectorLayer(), and QgsOfflineEditing::synchronize().
|
signal |
|
signal |
Signals emitted after committing changes.
|
signal |
|
signal |
Referenced by startEditing().
|
signal |
Referenced by startEditing().
|
signal |
bool QgsVectorLayer::countSymbolFeatures | ( | bool | showProgress = true | ) |
Count features for symbols.
Feature counts may be get by featureCount( QgsSymbolV2*).
showProgress | show progress dialog |
Definition at line 1100 of file qgsvectorlayer.cpp.
References getFeatures(), QgsFeatureRendererV2::legendSymbolItems(), mDataProvider, mRendererV2, mSymbolFeatureCounted, mSymbolFeatureCountMap, QgsMapLayer::name(), QgsFeatureIterator::nextFeature(), QgsFeatureRequest::NoGeometry, pendingFeatureCount(), QgsDebugMsg, QgsRenderContext::setRendererScale(), QgsFeatureRendererV2::startRender(), QgsFeatureRendererV2::stopRender(), QgsFeatureRendererV2::symbolsForFeature(), and tr.
Referenced by QgsLegendModel::addVectorLayerItemsV2(), and QgsLegendModel::updateSymbolV2ItemText().
void QgsVectorLayer::createJoinCaches | ( | ) |
Caches joined attributes if required (and not already done)
Definition at line 3385 of file qgsvectorlayer.cpp.
References QgsVectorLayerJoinBuffer::containsJoins(), QgsVectorLayerJoinBuffer::createJoinCaches(), and mJoinBuffer.
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Reads vertex marker size from settings.
Definition at line 3043 of file qgsvectorlayer.cpp.
Referenced by draw(), and drawRendererV2Levels().
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staticprivate |
Reads vertex marker type from settings.
Definition at line 3025 of file qgsvectorlayer.cpp.
References Cross, NoMarker, and SemiTransparentCircle.
Referenced by draw(), and drawRendererV2Levels().
QString QgsVectorLayer::dataComment | ( | ) | const |
Returns a comment for the data in the layer.
Definition at line 237 of file qgsvectorlayer.cpp.
References QgsVectorDataProvider::dataComment(), and mDataProvider.
Referenced by metadata().
QgsVectorDataProvider * QgsVectorLayer::dataProvider | ( | ) |
Returns the data provider.
Definition at line 936 of file qgsvectorlayer.cpp.
References mDataProvider.
Referenced by QgsQueryBuilder::accept(), QgsVectorLayerEditBuffer::addAttribute(), QgsVectorLayerEditBuffer::addFeature(), QgsVectorLayerEditBuffer::addFeatures(), QgsOfflineEditing::applyAttributesAdded(), QgsOfflineEditing::applyFeaturesAdded(), attributeEditorElementFromDomElement(), QgsGeometryAnalyzer::buffer(), QgsZonalStatistics::calculateStatistics(), QgsGeometryAnalyzer::centroids(), QgsVectorLayerEditBuffer::changeAttributeValue(), QgsVectorLayerEditBuffer::changeGeometry(), QgsVectorLayerEditBuffer::commitChanges(), QgsGeometryAnalyzer::convexHull(), QgsOfflineEditing::copyVectorLayer(), QgsAttributeEditor::createAttributeEditor(), QgsRelationEditorWidget::createRelationEditor(), QgsVectorLayerEditBuffer::deleteAttribute(), QgsVectorLayerEditBuffer::deleteFeature(), QgsGeometryAnalyzer::dissolve(), QgsGeometryAnalyzer::eventLayer(), QgsGeometryAnalyzer::extent(), QgsVectorLayerFeatureIterator::fetchFeature(), QgsVectorLayerCache::getFeatures(), QgsZonalStatistics::getUniqueFieldName(), QgsAttributeDialog::init(), QgsOverlayAnalyzer::intersection(), metadata(), QgsVectorLayerFeatureIterator::nextFeatureFid(), QgsVectorLayerFeatureIterator::providerCanSimplify(), QgsVectorLayerFeatureIterator::QgsVectorLayerFeatureIterator(), QgsPalLayerSettings::readDataDefinedProperty(), QgsFeatureListModel::setDisplayExpression(), QgsGeometryAnalyzer::simplify(), QgsVectorLayerEditUtils::splitFeatures(), QgsQueryBuilder::test(), QgsProjectFileTransform::transform0110to1000(), uniqueValues(), QgsVectorLayerFeatureIterator::useChangedAttributeFeature(), and QgsVectorFileWriter::writeAsVectorFormat().
const QgsVectorDataProvider * QgsVectorLayer::dataProvider | ( | ) | const |
Returns the data provider in a const-correct manner.
Definition at line 941 of file qgsvectorlayer.cpp.
References mDataProvider.
QString & QgsVectorLayer::dateFormat | ( | int | idx | ) |
access date format
Definition at line 3211 of file qgsvectorlayer.cpp.
References mDateFormats, and pendingFields().
Referenced by QgsAttributeEditor::createAttributeEditor(), QgsAttributeDialog::init(), QgsAttributeEditor::retrieveValue(), and QgsAttributeEditor::setValue().
bool QgsVectorLayer::deleteAttribute | ( | int | attr | ) |
delete an attribute field (but does not commit it)
Definition at line 2649 of file qgsvectorlayer.cpp.
References QgsVectorLayerEditBuffer::deleteAttribute(), mDataProvider, and mEditBuffer.
Referenced by deleteAttributes().
bool QgsVectorLayer::deleteAttributes | ( | QList< int > | attrs | ) |
Deletes a list of attribute fields (but does not commit it)
attrs | the indices of the attributes to delete |
Definition at line 2657 of file qgsvectorlayer.cpp.
References deleteAttribute().
bool QgsVectorLayer::deleteFeature | ( | QgsFeatureId | fid | ) |
delete a feature from the layer (but does not commit it)
Definition at line 2677 of file qgsvectorlayer.cpp.
References QgsVectorLayerEditBuffer::deleteFeature(), mEditBuffer, mSelectedFeatureIds, and updateExtents().
Referenced by QgsOfflineEditing::applyFeaturesRemoved(), deleteSelectedFeatures(), and QgsRelationEditorWidget::on_mDeleteFeatureButton_clicked().
bool QgsVectorLayer::deleteSelectedFeatures | ( | ) |
Deletes the selected features.
Definition at line 1405 of file qgsvectorlayer.cpp.
References QgsVectorDataProvider::capabilities(), deleteFeature(), QgsVectorDataProvider::DeleteFeatures, isEditable(), mDataProvider, mSelectedFeatureIds, QgsMapLayer::setCacheImage(), triggerRepaint(), and updateExtents().
bool QgsVectorLayer::deleteVertex | ( | QgsFeatureId | atFeatureId, |
int | atVertex | ||
) |
Deletes a vertex from a feature.
Definition at line 1395 of file qgsvectorlayer.cpp.
References QgsVectorLayerEditUtils::deleteVertex(), mDataProvider, and mEditBuffer.
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slot |
Deselect feature by its ID.
featureId | The id of the feature to deselect |
Definition at line 804 of file qgsvectorlayer.cpp.
References mSelectedFeatureIds, selectionChanged(), and QgsMapLayer::setCacheImage().
Referenced by QgsVectorLayerSelectionManager::deselect().
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slot |
Deselect features by their ID.
featureIds | The ids of the features to deselect |
Definition at line 812 of file qgsvectorlayer.cpp.
References mSelectedFeatureIds, selectionChanged(), and QgsMapLayer::setCacheImage().
void QgsVectorLayer::destroyEditCommand | ( | ) |
Destroy active command and reverts all changes in it.
Definition at line 3306 of file qgsvectorlayer.cpp.
References editCommandDestroyed(), and QgsMapLayer::undoStack().
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Definition at line 720 of file qgsvectorlayer.h.
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inline |
Definition at line 717 of file qgsvectorlayer.h.
const QString QgsVectorLayer::displayExpression | ( | ) |
Get the preview expression, used to create a human readable preview string.
Uses QgsExpression
Definition at line 3082 of file qgsvectorlayer.cpp.
References mDisplayExpression.
Referenced by QgsDualView::columnBoxInit(), QgsDualView::previewExpressionBuilder(), and setDisplayExpression().
const QString QgsVectorLayer::displayField | ( | ) | const |
Returns the primary display field name used in the identify results dialog.
Definition at line 3072 of file qgsvectorlayer.cpp.
References mDisplayField.
Referenced by QgsDualView::columnBoxInit(), QgsMapTip::fetchFeature(), and writeSymbology().
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Draws the layer.
Reimplemented from QgsMapLayer.
Definition at line 653 of file qgsvectorlayer.cpp.
References QgsFeatureRendererV2::capabilities(), QgsRectangle::center(), QgsRenderContext::coordinateTransform(), currentVertexMarkerSize(), currentVertexMarkerType(), QgsGeometryCache::deleteCachedGeometries(), drawRendererV2(), drawRendererV2Levels(), QgsFeatureRendererV2::dump(), QgsRenderContext::extent(), fieldNameIndex(), QgsVectorSimplifyMethod::forceLocalOptimization(), QgsCoordinateReferenceSystem::geographicFlag(), QgsVectorSimplifyMethod::GeometrySimplification, getFeatures(), hasGeometryType(), QgsRectangle::isEmpty(), QgsRectangle::isFinite(), QgsMessageLog::logMessage(), QgsRenderContext::mapToPixel(), QgsMapToPixel::mapUnitsPerPixel(), mCache, mEditBuffer, mEnableBackbuffer, mRendererV2, mSimplifyMethod, mUpdateThreshold, QgsSimplifyMethod::OptimizeForRendering, QgsRenderContext::painter(), prepareLabelingAndDiagrams(), QgsDebugMsg, QgsGeometryCache::setCachedGeometriesRect(), QgsFeatureRequest::setFilterRect(), QgsSimplifyMethod::setForceLocalOptimization(), QgsSimplifyMethod::setMethodType(), QgsFeatureRequest::setSimplifyMethod(), QgsSimplifyMethod::setTolerance(), QgsFeatureRendererV2::setVertexMarkerAppearance(), simplifyDrawingCanbeApplied(), simplifyMethod(), QgsCoordinateTransform::sourceCrs(), QgsFeatureRendererV2::startRender(), QgsFeatureRendererV2::SymbolLevels, QgsVectorSimplifyMethod::threshold(), QgsRectangle::toString(), tr, QgsCoordinateTransform::transform(), QgsFeatureRendererV2::usedAttributes(), QgsFeatureRendererV2::usingSymbolLevels(), QgsException::what(), QgsPoint::x(), QgsRectangle::xMaximum(), QgsRectangle::xMinimum(), QgsPoint::y(), QgsRectangle::yMaximum(), and QgsRectangle::yMinimum().
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Draws the layer labels using coordinate transformation.
Reimplemented from QgsMapLayer.
Definition at line 335 of file qgsvectorlayer.cpp.
References QgsLabel::addRequiredFields(), QgsRenderContext::extent(), featureCount(), fieldNameIndex(), getFeatures(), hasGeometryType(), QgsLabel::maxScale(), QgsLabel::minScale(), mLabel, mLabelOn, mRendererV2, mSelectedFeatureIds, QgsFeatureIterator::nextFeature(), QgsDebugMsg, QgsRenderContext::rendererScale(), QgsLabel::renderLabel(), QgsLabel::scaleBasedVisibility(), QgsFeatureRendererV2::startRender(), QgsFeatureRendererV2::stopRender(), QgsFeatureRendererV2::usedAttributes(), and QgsFeatureRendererV2::willRenderFeature().
void QgsVectorLayer::drawRendererV2 | ( | QgsFeatureIterator & | fit, |
QgsRenderContext & | rendererContext, | ||
bool | labeling | ||
) |
Draw layer with renderer V2.
QgsFeatureRenderer::startRender() needs to be called before using this method
Definition at line 404 of file qgsvectorlayer.cpp.
References QgsGeometryCache::cacheGeometry(), featureCount(), QgsFeature::geometry(), hasGeometryType(), QgsFeature::id(), QgsRenderContext::labelingEngine(), mCache, mCurrentRendererContext, mDiagramRenderer, mEditBuffer, mEnableBackbuffer, mRendererV2, mSelectedFeatureIds, mUpdateThreshold, QgsFeatureIterator::nextFeature(), QgsDebugMsg, QgsLabelingEngineInterface::registerDiagramFeature(), QgsLabelingEngineInterface::registerFeature(), QgsFeatureRendererV2::renderFeature(), QgsRenderContext::renderingStopped(), QgsMapLayer::screenUpdateRequested(), stopRendererV2(), and QgsException::what().
Referenced by draw().
void QgsVectorLayer::drawRendererV2Levels | ( | QgsFeatureIterator & | fit, |
QgsRenderContext & | rendererContext, | ||
bool | labeling | ||
) |
Draw layer with renderer V2 using symbol levels.
QgsFeatureRenderer::startRender() needs to be called before using this method
Definition at line 497 of file qgsvectorlayer.cpp.
References QgsGeometryCache::cacheGeometry(), currentVertexMarkerSize(), currentVertexMarkerType(), QgsSymbolV2::defaultSymbol(), featureCount(), QgsFeature::geometry(), geometryType(), hasGeometryType(), QgsFeature::id(), QgsRenderContext::labelingEngine(), QgsSymbolV2LevelItem::layer(), mCache, mDiagramRenderer, mEditBuffer, mRendererV2, mSelectedFeatureIds, QgsFeatureIterator::nextFeature(), QgsDebugMsg, QgsLabelingEngineInterface::registerDiagramFeature(), QgsLabelingEngineInterface::registerFeature(), QgsFeatureRendererV2::renderFeature(), QgsSymbolLayerV2::renderingPass(), QgsRenderContext::renderingStopped(), QgsRenderContext::selectionColor(), QgsSymbolV2::setColor(), QgsFeatureRendererV2::setVertexMarkerAppearance(), QgsSingleSymbolRendererV2::startRender(), stopRendererV2(), QgsSingleSymbolRendererV2::symbol(), QgsSymbolV2LevelItem::symbol(), QgsFeatureRendererV2::symbolForFeature(), QgsSymbolV2::symbolLayer(), QgsSymbolV2::symbolLayerCount(), QgsFeatureRendererV2::symbols(), and QgsException::what().
Referenced by draw().
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Draws a vertex symbol at (screen) coordinates x, y.
(Useful to assist vertex editing.)
Definition at line 772 of file qgsvectorlayer.cpp.
References Cross, and SemiTransparentCircle.
Referenced by QgsFeatureRendererV2::renderVertexMarker().
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Buffer with uncommitted editing operations. Only valid after editing has been turned on.
Definition at line 1301 of file qgsvectorlayer.h.
Referenced by QgsVectorLayerEditUtils::addPart(), QgsVectorLayerEditUtils::addRing(), QgsFeatureListModel::data(), QgsVectorLayerEditUtils::deleteVertex(), QgsAttributeTableFilterModel::filterAcceptsRow(), QgsVectorLayerEditUtils::insertVertex(), QgsVectorLayerEditUtils::moveVertex(), QgsVectorLayerFeatureIterator::QgsVectorLayerFeatureIterator(), QgsVectorLayerEditUtils::splitFeatures(), QgsVectorLayerEditUtils::splitParts(), QgsOfflineEditing::startListenFeatureChanges(), QgsOfflineEditing::stopListenFeatureChanges(), and QgsVectorLayerEditUtils::translateFeature().
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signal |
Signal emitted, whan an edit command is destroyed.
Referenced by destroyEditCommand().
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signal |
Signal emitted, when an edit command successfully ended.
Referenced by endEditCommand().
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signal |
Signal emitted when a new edit command has been started.
text | Description for this edit command |
Referenced by beginEditCommand().
QString QgsVectorLayer::editForm | ( | ) |
get edit form (added in 1.4)
Definition at line 3148 of file qgsvectorlayer.cpp.
References mEditForm.
Referenced by QgsAttributeDialog::init().
QString QgsVectorLayer::editFormInit | ( | ) |
get python function for edit form initialization (added in 1.4)
Definition at line 3163 of file qgsvectorlayer.cpp.
References mEditFormInit.
Referenced by QgsAttributeDialog::init().
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Is emitted, when editing on this layer has started.
Referenced by startEditing().
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Is emitted, when edited changes successfully have been written to the data provider.
Referenced by commitChanges(), and rollBack().
QgsVectorLayer::EditorLayout QgsVectorLayer::editorLayout | ( | ) |
get the active layout for the attribute editor for this layer (added in 1.9)
Definition at line 3128 of file qgsvectorlayer.cpp.
References mEditorLayout.
Referenced by QgsAttributeDialog::init(), setEditorLayout(), and QgsAttributeDialog::~QgsAttributeDialog().
const QString QgsVectorLayer::editorWidgetV2 | ( | int | fieldIdx | ) |
Get the id for the editor widget used to represent the field at the given index.
fieldIdx | The index of the field |
Definition at line 2615 of file qgsvectorlayer.cpp.
References mEditorWidgetV2Types.
Referenced by QgsAttributeEditor::createAttributeEditor().
const QgsEditorWidgetConfig QgsVectorLayer::editorWidgetV2Config | ( | int | fieldIdx | ) |
Get the configuration for the editor widget used to represent the field at the given index.
fieldIdx | The index of the field |
Definition at line 2620 of file qgsvectorlayer.cpp.
References mEditorWidgetV2Configs.
Referenced by QgsAttributeEditor::createAttributeEditor().
QgsVectorLayer::EditType QgsVectorLayer::editType | ( | int | idx | ) |
get edit type
Definition at line 3112 of file qgsvectorlayer.cpp.
References QgsFields::count(), LineEdit, mEditTypes, QgsMapLayer::name(), and pendingFields().
Referenced by QgsDualView::columnBoxInit(), QgsAttributeEditor::createAttributeEditor(), QgsAttributeTableDelegate::createEditor(), QgsAttributeEditor::createWidgetFromDef(), QgsAttributeTableModel::data(), QgsAttributeDialog::init(), QgsAttributeTableModel::loadAttributes(), readSymbology(), QgsAttributeEditor::retrieveValue(), and QgsAttributeEditor::setValue().
void QgsVectorLayer::enableLabels | ( | bool | on | ) |
Set labels on.
Definition at line 1565 of file qgsvectorlayer.cpp.
References mLabelOn.
Referenced by readSymbology().
void QgsVectorLayer::endEditCommand | ( | ) |
Finish edit command and add it to undo/redo stack.
Definition at line 3300 of file qgsvectorlayer.cpp.
References editCommandEnded(), and QgsMapLayer::undoStack().
Referenced by QgsDualView::saveEditChanges(), and QgsAttributeTableDelegate::setModelData().
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Definition at line 1156 of file qgsvectorlayer.h.
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Definition at line 1153 of file qgsvectorlayer.h.
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Return the extent of the layer as a QRect.
Reimplemented from QgsMapLayer.
Definition at line 1181 of file qgsvectorlayer.cpp.
References QgsGeometry::boundingBox(), QgsRectangle::combineExtentWith(), QgsDataProvider::extent(), QgsVectorDataProvider::featureCount(), QgsFeature::geometry(), getFeatures(), hasGeometryType(), QgsVectorLayerEditBuffer::mAddedFeatures, QgsVectorLayerEditBuffer::mChangedGeometries, mDataProvider, QgsVectorLayerEditBuffer::mDeletedFeatureIds, mEditBuffer, mLazyExtent, mValidExtent, QgsFeatureIterator::nextFeature(), QgsDebugMsg, QgsMapLayer::recalculateExtents(), setExtent(), QgsRectangle::setMinimal(), QgsRectangle::toString(), QgsGeometry::type(), QGis::UnknownGeometry, QgsDataProvider::updateExtents(), QgsRectangle::xMaximum(), QgsRectangle::xMinimum(), QgsRectangle::yMaximum(), and QgsRectangle::yMinimum().
Referenced by QgsGeometryAnalyzer::extent(), and metadata().
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Referenced by startEditing().
QPainter::CompositionMode QgsVectorLayer::featureBlendMode | ( | ) | const |
Read blend mode for layer.
Definition at line 3581 of file qgsvectorlayer.cpp.
References mFeatureBlendMode.
Referenced by QgsComposerMap::containsAdvancedEffects(), QgsMapRenderer::render(), setFeatureBlendMode(), and writeSymbology().
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Signal emitted when setFeatureBlendMode() is called.
Referenced by setFeatureBlendMode().
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Number of features in the layer.
This is necessary if features are added/deleted or the layer has been subsetted. If the data provider chooses not to support this feature, the total number of features can be returned.
Definition at line 1083 of file qgsvectorlayer.cpp.
References QgsVectorDataProvider::featureCount(), mDataProvider, and QgsDebugMsg.
Referenced by QgsGeometryAnalyzer::buffer(), QgsGeometryAnalyzer::centroids(), QgsGeometryAnalyzer::convexHull(), QgsOfflineEditing::copyVectorLayer(), QgsTransectSample::createSample(), QgsGeometryAnalyzer::dissolve(), drawLabels(), drawRendererV2(), drawRendererV2Levels(), QgsVectorLayerImport::importLayer(), QgsOverlayAnalyzer::intersection(), metadata(), QgsVectorLayerCache::onFeatureAdded(), QgsVectorLayerCache::setFullCache(), QgsGeometryAnalyzer::simplify(), QgsQueryBuilder::test(), QgsOfflineEditing::updateFidLookup(), QgsLegendModel::updateLayerItemText(), and QgsLegendModel::updateSymbolV2ItemText().
long QgsVectorLayer::featureCount | ( | QgsSymbolV2 * | symbol | ) |
Number of features rendered with specified symbol.
Features must be first calculated by countSymbolFeatures()
symbol | the symbol |
Definition at line 1094 of file qgsvectorlayer.cpp.
References mSymbolFeatureCounted, and mSymbolFeatureCountMap.
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Referenced by startEditing().
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inline |
Type of feature form pop-up suppression after feature creation (overrides app setting)
Definition at line 1233 of file qgsvectorlayer.h.
Referenced by writeSymbology().
bool QgsVectorLayer::fieldEditable | ( | int | idx | ) |
is edit widget editable
Definition at line 3235 of file qgsvectorlayer.cpp.
References QgsFields::count(), QgsFields::fieldOrigin(), mFieldEditables, mUpdatedFields, QgsMapLayer::name(), QgsFields::OriginJoin, and pendingFields().
Referenced by QgsAttributeTableDelegate::createEditor(), QgsAttributeEditor::createWidgetFromDef(), and QgsAttributeDialog::init().
int QgsVectorLayer::fieldNameIndex | ( | const QString & | fieldName | ) | const |
Returns the index of a field name or -1 if the field does not exist.
Definition at line 3330 of file qgsvectorlayer.cpp.
References QgsFields::count(), QgsMapLayer::name(), and pendingFields().
Referenced by QgsVectorFileWriter::addRendererAttributes(), QgsDualView::columnBoxInit(), QgsAttributeEditor::createAttributeEditor(), QgsPointDisplacementRenderer::createDisplacementGroups(), QgsGraduatedSymbolRendererV2::createRenderer(), draw(), drawLabels(), QgsMapTip::fetchFeature(), QgsExpressionBuilderWidget::loadAllValues(), QgsAttributeTableModel::loadAttributes(), QgsExpressionBuilderWidget::loadSampleValues(), QgsRelationEditorWidget::on_mLinkFeatureButton_clicked(), QgsRelationEditorWidget::on_mUnlinkFeatureButton_clicked(), prepareLabelingAndDiagrams(), QgsPalLabeling::prepareLayer(), readSldLabeling(), readSymbology(), QgsRelationManager::referencingRelations(), QgsPointDisplacementRenderer::startRender(), QgsVectorFieldSymbolLayer::startRender(), QgsGraduatedSymbolRendererV2::startRender(), QgsCategorizedSymbolRendererV2::startRender(), QgsRelation::updateRelationStatus(), and writeSymbology().
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Goes through all features and finds a free id (e.g.
to give it temporarily to a not-commited feature)
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signal |
Referenced by startEditing().
QGis::GeometryType QgsVectorLayer::geometryType | ( | ) | const |
Returns point, line or polygon.
Definition at line 961 of file qgsvectorlayer.cpp.
References QgsVectorDataProvider::geometryType(), QGis::Line, mDataProvider, QGis::NoGeometry, QGis::Point, QGis::Polygon, QgsDebugMsg, QgsMapLayer::type(), QGis::UnknownGeometry, QGis::WKBLineString, QGis::WKBLineString25D, QGis::WKBMultiLineString, QGis::WKBMultiLineString25D, QGis::WKBMultiPoint, QGis::WKBMultiPoint25D, QGis::WKBMultiPolygon, QGis::WKBMultiPolygon25D, QGis::WKBNoGeometry, QGis::WKBPoint, QGis::WKBPoint25D, QGis::WKBPolygon, and QGis::WKBPolygon25D.
Referenced by QgsVectorLayerEditUtils::addPart(), QgsZonalStatistics::calculateStatistics(), QgsPointSample::createRandomPoints(), drawRendererV2Levels(), hasGeometryType(), QgsMapToolIdentify::identify(), metadata(), QgsVectorLayerFeatureIterator::prepareSimplification(), QgsAttributeTableModel::QgsAttributeTableModel(), QgsVectorLayer(), readSld(), readSymbology(), selectedFeatures(), simplifyDrawingCanbeApplied(), snapToGeometry(), and writeXml().
QgsFeatureIterator QgsVectorLayer::getFeatures | ( | const QgsFeatureRequest & | request = QgsFeatureRequest() | ) |
Query the provider for features specified in request.
Definition at line 1308 of file qgsvectorlayer.cpp.
References mDataProvider, and QgsVectorLayerFeatureIterator.
Referenced by QgsVectorLayerEditUtils::addPart(), QgsVectorLayerEditUtils::addRing(), allFeatureIds(), QgsOfflineEditing::applyFeaturesAdded(), QgsGeometry::avoidIntersections(), boundingBoxOfSelected(), QgsGeometryAnalyzer::buffer(), QgsInterpolator::cacheBaseData(), QgsVectorLayerJoinBuffer::cacheJoinLayer(), QgsGeometryAnalyzer::centroids(), QgsGeometryAnalyzer::convexHull(), QgsOfflineEditing::copyVectorLayer(), QgsSearchQueryBuilder::countRecords(), countSymbolFeatures(), QgsAttributeEditor::createAttributeEditor(), QgsFormAnnotationItem::createDesignerWidget(), QgsPointDisplacementRenderer::createDisplacementGroups(), QgsPointSample::createRandomPoints(), QgsGraduatedSymbolRendererV2::createRenderer(), QgsTransectSample::createSample(), QgsGeometryAnalyzer::dissolve(), draw(), drawLabels(), QgsGeometryAnalyzer::eventLayer(), extent(), QgsVectorLayerCache::featureAtId(), QgsMapTip::fetchFeature(), QgsTransectSample::findBaselineGeometry(), QgsComposerAttributeTable::getFeatureAttributes(), QgsVectorLayerCache::getFeatures(), QgsSearchQueryBuilder::getFieldValues(), QgsRelation::getRelatedFeatures(), QgsMapToolIdentify::identifyVectorLayer(), QgsVectorLayerImport::importLayer(), QgsAttributeDialog::init(), QgsOverlayAnalyzer::intersectFeature(), QgsOverlayAnalyzer::intersection(), invertSelectionInRectangle(), QgsAttributeTableModel::loadAttributes(), maximumValue(), minimumValue(), QgsExpressionSelectionDialog::on_mActionAddToSelection_triggered(), QgsExpressionSelectionDialog::on_mActionRemoveFromSelection_triggered(), QgsExpressionSelectionDialog::on_mActionSelect_triggered(), QgsExpressionSelectionDialog::on_mActionSelectInstersect_triggered(), QgsExpressionBuilderWidget::on_txtExpressionString_textChanged(), QgsAtlasComposition::prepareForFeature(), prepareLabelingAndDiagrams(), QgsCachedFeatureWriterIterator::QgsCachedFeatureWriterIterator(), removePolygonIntersections(), select(), selectedFeatures(), QgsAtlasComposition::setCoverageLayer(), QgsFormAnnotationItem::setFeatureForMapPosition(), QgsHtmlAnnotationItem::setFeatureForMapPosition(), QgsGeometryAnalyzer::simplify(), snapWithContext(), QgsVectorLayerEditUtils::splitFeatures(), QgsVectorLayerEditUtils::splitParts(), QgsVectorLayerEditUtils::translateFeature(), QgsVectorLayerUndoCommandChangeAttribute::undo(), uniqueValues(), updateFeature(), QgsAtlasComposition::updateFeatures(), QgsOfflineEditing::updateFidLookup(), and QgsVectorFileWriter::writeAsVectorFormat().
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Will return the named style corresponding to style id provided.
Definition at line 4345 of file qgsvectorlayer.cpp.
References cast_to_fptr, QgsProviderRegistry::instance(), QgsMapLayer::mDataSource, mProviderKey, QgsProviderRegistry::providerLibrary(), and tr.
bool QgsVectorLayer::hasGeometryType | ( | ) | const |
Returns true if this is a geometry layer and false in case of NoGeometry (table only) or UnknownGeometry.
Definition at line 1012 of file qgsvectorlayer.cpp.
References geometryType(), QGis::NoGeometry, and QGis::UnknownGeometry.
Referenced by QgsVectorLayerEditUtils::addPart(), QgsVectorLayerEditUtils::addRing(), QgsVectorLayerEditUtils::addTopologicalPoints(), QgsVectorLayerEditBuffer::changeGeometry(), QgsVectorLayerEditUtils::deleteVertex(), draw(), drawLabels(), drawRendererV2(), drawRendererV2Levels(), extent(), QgsVectorLayerCache::getFeatures(), QgsVectorLayerEditUtils::insertSegmentVerticesForSnap(), QgsVectorLayerEditUtils::insertVertex(), QgsVectorLayerEditUtils::moveVertex(), QgsVectorLayerFeatureIterator::prepareSimplification(), QgsVectorLayer(), readSld(), readSymbology(), removePolygonIntersections(), QgsVectorLayerCache::setCacheGeometry(), setCoordinateSystem(), setDisplayField(), setRendererV2(), simplifyDrawingCanbeApplied(), snapPoint(), QgsMapCanvasSnapper::snapToBackgroundLayers(), snapWithContext(), QgsVectorLayerEditUtils::splitFeatures(), QgsVectorLayerEditUtils::splitParts(), QgsVectorLayerEditUtils::translateFeature(), writeSld(), and writeSymbology().
bool QgsVectorLayer::hasLabelsEnabled | ( | void | ) | const |
Label is on.
Definition at line 1570 of file qgsvectorlayer.cpp.
References mLabelOn.
Referenced by QgsOfflineEditing::copyVectorLayer(), readSymbology(), and writeSymbology().
int QgsVectorLayer::insertSegmentVerticesForSnap | ( | const QList< QgsSnappingResult > & | snapResults | ) |
Inserts vertices to the snapped segments.
This is useful for topological editing if snap to segment is enabled.
snapResults | results collected from the snapping operation |
Definition at line 3018 of file qgsvectorlayer.cpp.
References QgsVectorLayerEditUtils::insertSegmentVerticesForSnap().
bool QgsVectorLayer::insertVertex | ( | double | x, |
double | y, | ||
QgsFeatureId | atFeatureId, | ||
int | beforeVertex | ||
) |
Insert a new vertex before the given vertex number, in the given ring, item (first number is index 0), and feature Not meaningful for Point geometries.
Definition at line 1375 of file qgsvectorlayer.cpp.
References QgsVectorLayerEditUtils::insertVertex(), mDataProvider, and mEditBuffer.
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protectedslot |
Definition at line 4220 of file qgsvectorlayer.cpp.
References mSymbolFeatureCounted.
Referenced by startEditing().
void QgsVectorLayer::invertSelection | ( | ) |
Select not selected features and deselect selected ones.
Definition at line 865 of file qgsvectorlayer.cpp.
References allFeatureIds(), mSelectedFeatureIds, and setSelectedFeatures().
void QgsVectorLayer::invertSelectionInRectangle | ( | QgsRectangle & | rect | ) |
Invert selection of features found within the search rectangle (in layer's coordinates)
rect | The rectangle in which the selection of features will be inverted |
Definition at line 894 of file qgsvectorlayer.cpp.
References QgsFeatureRequest::ExactIntersect, getFeatures(), QgsFeature::id(), modifySelection(), mSelectedFeatureIds, QgsFeatureIterator::nextFeature(), QgsFeatureRequest::NoGeometry, and QgsRectangle::normalize().
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Returns true if the provider is in editing mode.
Reimplemented from QgsMapLayer.
Definition at line 3087 of file qgsvectorlayer.cpp.
References mDataProvider, and mEditBuffer.
Referenced by QgsAttributeDialog::accept(), QgsAttributeEditor::createWidgetFromDef(), deleteSelectedFeatures(), QgsAttributeDialog::init(), QgsMapCanvas::mouseReleaseEvent(), QgsRelationEditorWidget::referencingLayerEditingToggled(), QgsMapRenderer::render(), and QgsAttributeTableModel::setData().
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virtual |
Returns true if the provider has been modified since the last commit.
Definition at line 3107 of file qgsvectorlayer.cpp.
References QgsVectorLayerEditBuffer::isModified(), and mEditBuffer.
Referenced by rollBack(), and QgsAttributeTableModel::setData().
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virtual |
Returns true if the provider is in read-only mode.
Definition at line 3092 of file qgsvectorlayer.cpp.
References mReadOnly.
Referenced by QgsRelationEditorWidget::createRelationEditor().
QgsLabel * QgsVectorLayer::label | ( | ) |
Get the label object associated with this layer.
Definition at line 1555 of file qgsvectorlayer.cpp.
References mLabel.
const QgsLabel * QgsVectorLayer::label | ( | ) | const |
Definition at line 1560 of file qgsvectorlayer.cpp.
References mLabel.
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signal |
Emitted when the font family defined for labeling layer is not found on system.
Referenced by prepareLabelingAndDiagrams().
bool QgsVectorLayer::labelOnTop | ( | int | idx | ) |
label widget on top
Definition at line 3248 of file qgsvectorlayer.cpp.
References QgsFields::count(), mLabelOnTop, and pendingFields().
Referenced by QgsAttributeEditor::createWidgetFromDef(), QgsAttributeDialog::init(), and readSymbology().
|
signal |
Referenced by ~QgsVectorLayer().
|
signal |
This signal is emitted when modifications has been done on layer.
Referenced by addAttributeAlias(), and startEditing().
int QgsVectorLayer::layerTransparency | ( | ) | const |
Read transparency for layer.
Definition at line 3594 of file qgsvectorlayer.cpp.
References mLayerTransparency.
Referenced by QgsComposerMap::containsAdvancedEffects(), QgsMapRenderer::render(), setLayerTransparency(), and writeSymbology().
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signal |
Signal emitted when setLayerTransparency() is called.
Referenced by setLayerTransparency().
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virtual |
Lists all the style in db split into related to the layer and not related to.
ids | the list in which will be stored the style db ids |
names | the list in which will be stored the style names |
descriptions | the list in which will be stored the style descriptions |
msgError |
Definition at line 4324 of file qgsvectorlayer.cpp.
References cast_to_fptr, QgsProviderRegistry::instance(), QgsMapLayer::mDataSource, mProviderKey, QgsProviderRegistry::providerLibrary(), and tr.
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virtual |
Load a named style from file/local db/datasource db.
theURI | the URI of the style or the URI of the layer |
theResultFlag | will be set to true if a named style is correctly loaded |
loadFromLocalDb | if true forces to load from local db instead of datasource one |
Definition at line 4414 of file qgsvectorlayer.cpp.
References applyNamedStyle(), cast_to_fptr, QgsDataSourceURI::database(), QgsProviderRegistry::instance(), QgsMapLayer::mDataSource, mProviderKey, QgsProviderRegistry::providerLibrary(), and tr.
Referenced by loadNamedStyle().
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virtual |
Calls loadNamedStyle( theURI, theResultFlag, false ); Retained for backward compatibility.
Reimplemented from QgsMapLayer.
Definition at line 4409 of file qgsvectorlayer.cpp.
References loadNamedStyle().
QVariant QgsVectorLayer::maximumValue | ( | int | index | ) |
Returns maximum value for an attribute column or invalid variant in case of error.
Definition at line 3512 of file qgsvectorlayer.cpp.
References QgsFeature::attribute(), QgsFields::fieldOrigin(), getFeatures(), index, QgsMapLayerRegistry::instance(), QgsVectorLayerJoinBuffer::joinForFieldIndex(), QgsVectorJoinInfo::joinLayerId, QgsVectorLayerEditBuffer::mAddedFeatures, QgsMapLayerRegistry::mapLayer(), MathUtils::max(), QgsVectorDataProvider::maximumValue(), maximumValue(), QgsVectorLayerEditBuffer::mChangedAttributeValues, mDataProvider, QgsVectorLayerEditBuffer::mDeletedAttributeIds, QgsVectorLayerEditBuffer::mDeletedFeatureIds, mEditBuffer, mJoinBuffer, mUpdatedFields, QgsFeatureIterator::nextFeature(), QgsFeatureRequest::NoGeometry, QgsFields::OriginEdit, QgsFields::OriginJoin, and QgsFields::OriginProvider.
Referenced by QgsGraduatedSymbolRendererV2::createRenderer(), and maximumValue().
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virtual |
Obtain Metadata for this layer.
Reimplemented from QgsMapLayer.
Definition at line 3960 of file qgsvectorlayer.cpp.
References capabilitiesString(), QgsField::comment(), QgsMapLayer::crs(), dataComment(), dataProvider(), QgsDataProvider::description(), extent(), featureCount(), geometryType(), QgsRectangle::isEmpty(), QgsField::length(), QgsField::name(), QGis::NoGeometry, pendingFields(), pendingPkAttributesList(), QgsField::precision(), QgsMapLayer::publicSource(), QgsDebugMsg, storageType(), QgsCoordinateReferenceSystem::toProj4(), tr, QgsMapLayer::type(), QgsField::typeName(), QGis::vectorGeometryType(), QgsException::what(), QgsRectangle::xMaximum(), QgsRectangle::xMinimum(), QgsRectangle::yMaximum(), and QgsRectangle::yMinimum().
QVariant QgsVectorLayer::minimumValue | ( | int | index | ) |
Returns minimum value for an attribute column or invalid variant in case of error.
Definition at line 3454 of file qgsvectorlayer.cpp.
References QgsFeature::attribute(), QgsFields::fieldOrigin(), getFeatures(), index, QgsMapLayerRegistry::instance(), QgsVectorLayerJoinBuffer::joinForFieldIndex(), QgsVectorJoinInfo::joinLayerId, QgsVectorLayerEditBuffer::mAddedFeatures, QgsMapLayerRegistry::mapLayer(), MathUtils::max(), QgsVectorLayerEditBuffer::mChangedAttributeValues, mDataProvider, QgsVectorLayerEditBuffer::mDeletedAttributeIds, QgsVectorLayerEditBuffer::mDeletedFeatureIds, mEditBuffer, QgsVectorDataProvider::minimumValue(), minimumValue(), mJoinBuffer, mUpdatedFields, QgsFeatureIterator::nextFeature(), QgsFeatureRequest::NoGeometry, QgsFields::OriginEdit, QgsFields::OriginJoin, and QgsFields::OriginProvider.
Referenced by QgsGraduatedSymbolRendererV2::createRenderer(), and minimumValue().
void QgsVectorLayer::modifySelection | ( | QgsFeatureIds | selectIds, |
QgsFeatureIds | deselectIds | ||
) |
Modifies the current selection on this layer.
selectIds | Select these ids |
deselectIds | Deselect these ids |
Definition at line 849 of file qgsvectorlayer.cpp.
References mSelectedFeatureIds, QgsDebugMsg, selectionChanged(), and QgsMapLayer::setCacheImage().
Referenced by invertSelectionInRectangle().
bool QgsVectorLayer::moveVertex | ( | double | x, |
double | y, | ||
QgsFeatureId | atFeatureId, | ||
int | atVertex | ||
) |
Moves the vertex at the given position number, ring and item (first number is index 0), and feature to the given coordinates.
Definition at line 1385 of file qgsvectorlayer.cpp.
References mDataProvider, mEditBuffer, and QgsVectorLayerEditUtils::moveVertex().
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virtualslot |
Is called when the cache image is being deleted.
Overwrite and use to clean up.
Definition at line 4214 of file qgsvectorlayer.cpp.
References mCurrentRendererContext, and QgsRenderContext::setRenderingStopped().
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privateslot |
Definition at line 4225 of file qgsvectorlayer.cpp.
References QgsAttributeEditorElement::AeTypeContainer, QgsAttributeEditorElement::AeTypeRelation, QgsAttributeEditorContainer::findElements(), QgsAttributeEditorRelation::init(), QgsProject::instance(), mAttributeEditorElements, and QgsAttributeEditorElement::type().
Referenced by QgsVectorLayer().
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private |
vector layers are not copyable
QgsAttributeList QgsVectorLayer::pendingAllAttributesList | ( | ) |
returns list of attributes
Definition at line 2696 of file qgsvectorlayer.cpp.
References QgsFields::count(), and mUpdatedFields.
Referenced by QgsOfflineEditing::attributeLookup(), QgsVectorLayerCache::checkInformationCovered(), QgsVectorLayerImport::importLayer(), QgsVectorLayerFeatureIterator::prepareJoins(), QgsVectorLayerCache::QgsVectorLayerCache(), and QgsVectorFileWriter::writeAsVectorFormat().
int QgsVectorLayer::pendingFeatureCount | ( | ) |
returns feature count after commit
Definition at line 2719 of file qgsvectorlayer.cpp.
References QgsVectorDataProvider::featureCount(), QgsVectorLayerEditBuffer::mAddedFeatures, mDataProvider, QgsVectorLayerEditBuffer::mDeletedFeatureIds, and mEditBuffer.
Referenced by countSymbolFeatures(), and QgsGeometryAnalyzer::eventLayer().
const QgsFields & QgsVectorLayer::pendingFields | ( | ) | const |
returns field list in the to-be-committed state
Definition at line 2691 of file qgsvectorlayer.cpp.
References mUpdatedFields.
Referenced by QgsAttributeDialog::accept(), QgsVectorLayerEditBuffer::addAttribute(), addAttributeAlias(), QgsVectorLayerFeatureIterator::addJoinedAttributes(), QgsOfflineEditing::applyFeaturesAdded(), attributeAlias(), attributeDisplayName(), QgsGeometryAnalyzer::buffer(), QgsVectorLayerJoinBuffer::cacheJoinLayer(), QgsGeometryAnalyzer::centroids(), QgsVectorLayerEditBuffer::changeAttributeValue(), checkedState(), QgsDualView::columnBoxInit(), QgsVectorLayerEditBuffer::commitChanges(), QgsSearchQueryBuilder::countRecords(), QgsAttributeEditor::createAttributeEditor(), QgsFormAnnotationItem::createDesignerWidget(), QgsPointSample::createRandomPoints(), QgsGraduatedSymbolRendererV2::createRenderer(), QgsTransectSample::createSample(), QgsFeatureListModel::data(), QgsAttributeTableModel::data(), dateFormat(), QgsVectorLayerEditBuffer::deleteAttribute(), QgsGeometryAnalyzer::dissolve(), editType(), QgsAtlasComposition::evalFeatureFilename(), QgsGeometryAnalyzer::eventLayer(), QgsAttributeAction::expandAction(), fieldEditable(), fieldNameIndex(), QgsTransectSample::findBaselineGeometry(), QgsSearchQueryBuilder::getFieldValues(), QgsComposerAttributeTable::getHeaderLabels(), QgsRelation::getRelatedFeaturesRequest(), QgsAttributeTableModel::headerData(), QgsVectorLayerImport::importLayer(), QgsDataDefinedButton::init(), QgsAttributeDialog::init(), QgsComposerAttributeTable::initializeAliasMap(), QgsOverlayAnalyzer::intersection(), labelOnTop(), QgsAttributeTableModel::loadAttributes(), QgsExpressionBuilderWidget::loadFieldNames(), QgsRelationAddDlg::loadLayerAttributes(), metadata(), QgsQueryBuilder::on_lstFields_doubleClicked(), QgsExpressionSelectionDialog::on_mActionAddToSelection_triggered(), QgsExpressionSelectionDialog::on_mActionRemoveFromSelection_triggered(), QgsExpressionSelectionDialog::on_mActionSelect_triggered(), QgsExpressionSelectionDialog::on_mActionSelectInstersect_triggered(), QgsRelationEditorWidget::on_mAddFeatureButton_clicked(), QgsRelationEditorWidget::on_mUnlinkFeatureButton_clicked(), QgsExpressionBuilderWidget::on_txtExpressionString_textChanged(), QgsSearchQueryBuilder::populateFields(), QgsQueryBuilder::populateFields(), QgsAttributeTableModel::prefetchColumnData(), QgsDataDefined::prepareExpression(), QgsSymbolLayerV2::prepareExpressions(), QgsVectorLayerFeatureIterator::prepareJoins(), prepareLabelingAndDiagrams(), QgsPalLabeling::prepareLayer(), QgsVectorLayerFeatureIterator::QgsVectorLayerFeatureIterator(), QgsVectorLayerUndoCommandAddAttribute::QgsVectorLayerUndoCommandAddAttribute(), QgsVectorLayerUndoCommandDeleteAttribute::QgsVectorLayerUndoCommandDeleteAttribute(), range(), readSymbology(), QgsExpression::replaceExpressionText(), QgsAttributeEditor::retrieveValue(), setCheckedState(), setDisplayField(), setEditType(), setFieldEditable(), setLabelOnTop(), QgsAttributeEditor::setValue(), QgsGeometryAnalyzer::simplify(), QgsGraduatedSymbolRendererV2::startRender(), QgsCategorizedSymbolRendererV2::startRender(), QgsRuleBasedRendererV2::Rule::startRender(), QgsVectorLayerUndoCommandAddAttribute::undo(), QgsAtlasComposition::updateFeatures(), QgsVectorLayerJoinBuffer::updateFields(), QgsAtlasComposition::updateFilenameExpression(), valueMap(), valueRelation(), widgetSize(), and QgsVectorFileWriter::writeAsVectorFormat().
QgsAttributeList QgsVectorLayer::pendingPkAttributesList | ( | ) |
returns list of attribute making up the primary key
Definition at line 2704 of file qgsvectorlayer.cpp.
References QgsFields::count(), QgsFields::fieldOrigin(), QgsFields::fieldOriginIndex(), mDataProvider, mUpdatedFields, QgsFields::OriginProvider, and QgsVectorDataProvider::pkAttributeIndexes().
Referenced by QgsDualView::columnBoxInit(), and metadata().
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private |
Registers label and diagram layer.
rendererContext | render context |
attributes | attributes needed for labeling and diagrams will be added to the list |
labeling | out: true if there will be labeling (ng) for this layer |
Definition at line 3609 of file qgsvectorlayer.cpp.
References QgsLabelingEngineInterface::addDiagramLayer(), QgsLinearlyInterpolatedDiagramRenderer::classificationAttribute(), QgsLinearlyInterpolatedDiagramRenderer::classificationAttributeExpression(), QgsLinearlyInterpolatedDiagramRenderer::classificationAttributeIsExpression(), QgsDiagramRendererV2::diagram(), QgsDiagramRendererV2::diagramAttributes(), QgsRenderContext::extent(), fieldNameIndex(), getFeatures(), index, QgsRenderContext::labelingEngine(), labelingFontNotFound(), QgsLabelingEngineInterface::layer(), QgsPalLayerSettings::limitNumLabels, QgsPalLayerSettings::maxNumLabels, mDiagramLayerSettings, mDiagramRenderer, QgsPalLayerSettings::mFeaturesToLabel, mLabelFontNotFoundNotified, QgsPalLayerSettings::mTextFontFamily, QgsPalLayerSettings::mTextFontFound, QgsFeatureIterator::nextFeature(), pendingFields(), QgsLabelingEngineInterface::prepareLayer(), QgsExpression::referencedColumns(), QgsDiagramLayerSettings::renderer, QgsDiagramLayerSettings::xPosColumn, and QgsDiagramLayerSettings::yPosColumn.
Referenced by draw().
QString QgsVectorLayer::providerType | ( | ) | const |
Return the provider type for this layer.
Definition at line 247 of file qgsvectorlayer.cpp.
References mProviderKey.
Referenced by QgsVectorLayerEditBuffer::commitChanges(), QgsOfflineEditing::copyVectorLayer(), QgsQueryBuilder::fillValues(), QgsVectorLayerImport::importLayer(), QgsQueryBuilder::on_lstValues_doubleClicked(), QgsMapLayer::saveNamedStyle(), QgsMapLayer::saveSldStyle(), QgsVectorFileWriter::writeAsVectorFormat(), QgsMapLayer::writeLayerXML(), and writeXml().
QgsVectorLayer::RangeData & QgsVectorLayer::range | ( | int | idx | ) |
access range
Definition at line 3192 of file qgsvectorlayer.cpp.
References QgsFields::count(), mRanges, pendingFields(), and QgsDebugMsg.
Referenced by QgsAttributeEditor::createAttributeEditor().
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virtual |
Reimplemented from QgsMapLayer.
Definition at line 2523 of file qgsvectorlayer.cpp.
References geometryType(), hasGeometryType(), QgsFeatureRendererV2::loadSld(), readSldLabeling(), and setRendererV2().
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private |
Read labeling from SLD.
Definition at line 3718 of file qgsvectorlayer.cpp.
References QgsPalLayerSettings::AroundPoint, QgsOgcUtils::colorFromOgcFill(), QgsExpression::evalErrorString(), fieldNameIndex(), QgsExpression::hasEvalError(), QgsPalLayerSettings::OverPoint, QgsDebugMsg, and QgsMapLayer::setCustomProperty().
Referenced by readSld().
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virtual |
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 |
Implements QgsMapLayer.
Definition at line 1844 of file qgsvectorlayer.cpp.
References attributeEditorElementFromDomElement(), Calendar, CheckBox, Classification, Color, QgsFeatureRendererV2::defaultRenderer(), DialRange, EditorWidgetV2, EditRange, editType(), enableLabels(), Enumeration, fieldNameIndex(), FileName, GeneratedLayout, geometryType(), QgsMapRenderer::getCompositionMode(), hasGeometryType(), hasLabelsEnabled(), Hidden, Immutable, index, QgsProject::instance(), labelOnTop(), LineEdit, QgsFeatureRendererV2::load(), mActions, mAnnotationForm, mAttributeAliasMap, mAttributeEditorElements, MathUtils::max(), mCheckedStates, mDateFormats, mDiagramLayerSettings, mDiagramRenderer, mEditForm, mEditFormInit, mEditorLayout, mEditTypes, mExcludeAttributesWFS, mExcludeAttributesWMS, mFeatureFormSuppress, mFieldEditables, MathUtils::min(), mLabel, mLabelOnTop, mRanges, mSimplifyMethod, mValueMaps, mValueRelations, mWidgetSize, QgsMapLayer::name(), pendingFields(), Photo, QgsDebugMsg, QgsMapLayer::readCustomProperties(), QgsSymbologyV2Conversion::readOldRenderer(), QgsProject::readPath(), QgsDiagramLayerSettings::readXML(), QgsLabel::readXML(), QgsAttributeAction::readXML(), QgsDiagramRendererV2::readXML(), RENDERER_TAG_NAME, QgsMapLayer::setBlendMode(), setDisplayField(), setFeatureBlendMode(), QgsVectorSimplifyMethod::setForceLocalOptimization(), setLayerTransparency(), QgsVectorSimplifyMethod::setMaximumScale(), QgsLabel::setMaxScale(), QgsLabel::setMinScale(), setRendererV2(), QgsLabel::setScaleBasedVisibility(), QgsVectorSimplifyMethod::setSimplifyHints(), QgsVectorSimplifyMethod::setThreshold(), SliderRange, SuppressDefault, TabLayout, TextEdit, UiFileLayout, UniqueValues, UniqueValuesEditable, UuidGenerator, ValueMap, ValueRelation, and WebView.
Referenced by applyNamedStyle(), QgsOfflineEditing::copySymbology(), and readXml().
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virtual |
reads vector layer specific state from project file Dom node.
Reimplemented from QgsMapLayer.
Definition at line 1620 of file qgsvectorlayer.cpp.
References checkJoinLayerRemove(), QgsMapLayerRegistry::instance(), mDataProvider, QgsMapLayer::mDataSource, mDisplayExpression, mJoinBuffer, mProviderKey, QgsMapLayer::mValid, QgsDebugMsg, readSymbology(), QgsVectorLayerJoinBuffer::readXml(), setDataProvider(), QgsVectorDataProvider::setEncoding(), and updateFields().
QList< QgsRelation > QgsVectorLayer::referencingRelations | ( | int | idx | ) |
Get relations, where the foreign key is on this layer.
idx | Only get relations, where idx forms part of the foreign key |
Definition at line 4263 of file qgsvectorlayer.cpp.
References QgsProject::instance(), QgsRelationManager::referencingRelations(), and QgsProject::relationManager().
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virtual |
Synchronises with changes in the datasource.
Reimplemented from QgsMapLayer.
Definition at line 645 of file qgsvectorlayer.cpp.
References mDataProvider, and QgsDataProvider::reloadData().
Referenced by QgsOfflineEditing::synchronize().
void QgsVectorLayer::removeJoin | ( | const QString & | joinLayerId | ) |
Removes a vector layer join.
Definition at line 3355 of file qgsvectorlayer.cpp.
References mJoinBuffer, QgsVectorLayerJoinBuffer::removeJoin(), and updateFields().
Referenced by checkJoinLayerRemove().
int QgsVectorLayer::removePolygonIntersections | ( | QgsGeometry * | geom, |
QgsFeatureIds | ignoreFeatures = QgsFeatureIds() |
||
) |
Changes the specified geometry such that it has no intersections with other polygon (or multipolygon) geometries in this vector layer.
geom | geometry to modify |
ignoreFeatures | list of feature ids where intersections should be ignored |
Definition at line 1493 of file qgsvectorlayer.cpp.
References QgsGeometry::boundingBox(), QgsFeatureRequest::ExactIntersect, QgsFeature::geometry(), getFeatures(), hasGeometryType(), QgsFeature::id(), QgsGeometry::makeDifference(), QgsFeatureIterator::nextFeature(), QGis::Polygon, and QgsGeometry::type().
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slot |
Clear selection.
Definition at line 923 of file qgsvectorlayer.cpp.
References mSelectedFeatureIds, and setSelectedFeatures().
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signal |
Signal emitted on symbology changes, when setRendererV2() is called.
Referenced by setRendererV2().
QgsFeatureRendererV2 * QgsVectorLayer::rendererV2 | ( | ) |
Return renderer V2.
Definition at line 3271 of file qgsvectorlayer.cpp.
References mRendererV2.
Referenced by QgsLegendModel::addVectorLayerItemsV2(), QgsAttributeEditor::createAttributeEditor(), QgsVectorFileWriter::createSymbolLayerTable(), QgsVectorFileWriter::exportFeaturesSymbolLevels(), QgsAttributeTableFilterModel::generateListOfVisibleFeatures(), QgsMapToolIdentify::identifyVectorLayer(), QgsHighlight::setColor(), QgsComposerLayerItem::setDefaultStyle(), QgsVectorFileWriter::symbologyRenderer(), QgsLegendModel::updateSymbolV2ItemText(), and QgsVectorFileWriter::writeAsVectorFormat().
bool QgsVectorLayer::rollBack | ( | bool | deleteBuffer = true | ) |
Stop editing and discard the edits.
deleteBuffer | whether to delete editing buffer (added in 1.9) |
Definition at line 2776 of file qgsvectorlayer.cpp.
References beforeRollBack(), QgsGeometryCache::deleteCachedGeometries(), editingStopped(), isModified(), mCache, mEditBuffer, QgsVectorLayerEditBuffer::rollBack(), QgsMapLayer::setCacheImage(), QgsMapLayer::undoStack(), and updateFields().
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signal |
|
virtual |
Save named and sld style of the layer to the style table in the db.
name | |
description | |
useAsDefault | |
uiFileContent | |
msgError |
Definition at line 4367 of file qgsvectorlayer.cpp.
References cast_to_fptr, QgsMapLayer::exportNamedStyle(), QgsMapLayer::exportSldStyle(), QgsProviderRegistry::instance(), QgsMapLayer::mDataSource, mProviderKey, QgsProviderRegistry::providerLibrary(), and tr.
void QgsVectorLayer::select | ( | QgsRectangle & | rect, |
bool | addToSelection | ||
) |
Select features found within the search rectangle (in layer's coordinates)
rect | The search rectangle |
addToSelection | If set to true will not clear before selecting |
Definition at line 820 of file qgsvectorlayer.cpp.
References QgsFeatureRequest::ExactIntersect, getFeatures(), QgsFeature::id(), mSelectedFeatureIds, QgsFeatureIterator::nextFeature(), QgsFeatureRequest::NoGeometry, QgsRectangle::normalize(), and setSelectedFeatures().
Referenced by QgsVectorLayerSelectionManager::select().
|
slot |
Select feature by its ID.
featureId | The id of the feature to select |
Definition at line 788 of file qgsvectorlayer.cpp.
References mSelectedFeatureIds, selectionChanged(), and QgsMapLayer::setCacheImage().
|
slot |
Select features by their ID.
featureIds | The ids of the features to select |
Definition at line 796 of file qgsvectorlayer.cpp.
References mSelectedFeatureIds, selectionChanged(), and QgsMapLayer::setCacheImage().
void QgsVectorLayer::selectAll | ( | ) |
Select all the features.
Definition at line 872 of file qgsvectorlayer.cpp.
References allFeatureIds(), and setSelectedFeatures().
int QgsVectorLayer::selectedFeatureCount | ( | ) |
The number of features that are selected in this layer.
Definition at line 2827 of file qgsvectorlayer.cpp.
References mSelectedFeatureIds.
Referenced by QgsMapCanvas::panToSelected(), QgsVectorLayerSelectionManager::selectedFeatureCount(), and QgsMapCanvas::zoomToSelected().
QgsFeatureList QgsVectorLayer::selectedFeatures | ( | ) |
Get a copy of the user-selected features.
Definition at line 2838 of file qgsvectorlayer.cpp.
References geometryType(), getFeatures(), mSelectedFeatureIds, QgsFeatureRequest::NoGeometry, QGis::NoGeometry, QgsFeatureRequest::setFilterFid(), and QgsFeatureRequest::setFlags().
Referenced by QgsVectorLayerEditUtils::splitFeatures(), and QgsVectorLayerEditUtils::splitParts().
const QgsFeatureIds & QgsVectorLayer::selectedFeaturesIds | ( | ) | const |
Return reference to identifiers of selected features.
Definition at line 2832 of file qgsvectorlayer.cpp.
References mSelectedFeatureIds.
Referenced by QgsGeometryAnalyzer::buffer(), QgsGeometryAnalyzer::centroids(), QgsGeometryAnalyzer::convexHull(), QgsGeometryAnalyzer::dissolve(), QgsAttributeTableFilterModel::filterAcceptsRow(), QgsVectorLayerImport::importLayer(), QgsOverlayAnalyzer::intersection(), QgsAttributeTableFilterModel::lessThan(), QgsExpressionSelectionDialog::on_mActionAddToSelection_triggered(), QgsExpressionSelectionDialog::on_mActionRemoveFromSelection_triggered(), QgsExpressionSelectionDialog::on_mActionSelectInstersect_triggered(), QgsVectorLayerSelectionManager::selectedFeaturesIds(), QgsGeometryAnalyzer::simplify(), QgsVectorLayerEditUtils::splitFeatures(), QgsVectorLayerEditUtils::splitParts(), and QgsVectorFileWriter::writeAsVectorFormat().
|
signal |
This signal is emitted when selection was changed.
selected | Newly selected feature ids |
deselected | Ids of all features which have previously been selected but are not any more |
clearAndSelect | In case this is set to true, the old selection was dismissed and the new selection corresponds to selected |
|
signal |
This signal is emitted when selection was changed.
Referenced by deselect(), modifySelection(), QgsVectorLayer(), select(), and setSelectedFeatures().
void QgsVectorLayer::setAnnotationForm | ( | const QString & | ui | ) |
set annotation form for layer (added in 1.5)
Definition at line 3158 of file qgsvectorlayer.cpp.
References mAnnotationForm.
void QgsVectorLayer::setCheckedState | ( | int | idx, |
QString | checked, | ||
QString | notChecked | ||
) |
set string representing 'true' for a checkbox (added in 1.4)
Definition at line 3314 of file qgsvectorlayer.cpp.
References QgsFields::count(), mCheckedStates, QgsMapLayer::name(), and pendingFields().
void QgsVectorLayer::setCoordinateSystem | ( | ) |
Setup the coordinate system tranformation for the layer.
Definition at line 3051 of file qgsvectorlayer.cpp.
References QgsDataProvider::crs(), GEO_EPSG_CRS_AUTHID, hasGeometryType(), mDataProvider, QgsDebugMsg, and QgsMapLayer::setCrs().
Referenced by QgsVectorLayer().
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private |
bind layer to a specific data provider
provider | should be "postgres", "ogr", or ?? |
Definition at line 1700 of file qgsvectorlayer.cpp.
References QgsDataProvider::dataSourceUri(), QgsVectorDataProvider::fields(), QgsVectorDataProvider::geometryType(), QgsMapLayerRegistry::instance(), QgsProviderRegistry::instance(), QgsDataProvider::isValid(), QgsMapLayerRegistry::mapLayers(), mDataProvider, QgsMapLayer::mDataSource, mJoinBuffer, mLabel, mLabelOn, mProviderKey, QgsMapLayer::mValid, mWkbType, QgsMapLayer::name(), QgsProviderRegistry::provider(), QgsDebugMsg, setDisplayField(), QgsMapLayer::setLayerName(), updateExtents(), and updateFields().
Referenced by QgsVectorLayer(), and readXml().
void QgsVectorLayer::setDiagramLayerSettings | ( | const QgsDiagramLayerSettings & | s | ) |
Definition at line 3953 of file qgsvectorlayer.cpp.
References mDiagramLayerSettings.
void QgsVectorLayer::setDiagramRenderer | ( | QgsDiagramRendererV2 * | r | ) |
Sets diagram rendering object (takes ownership)
Definition at line 955 of file qgsvectorlayer.cpp.
References mDiagramRenderer.
void QgsVectorLayer::setDisplayExpression | ( | const QString & | displayExpression | ) |
Set the preview expression, used to create a human readable preview string.
Used e.g. in the attribute table feature list. Uses QgsExpression.
displayExpression | The expression which will be used to preview features for this layer |
Definition at line 3077 of file qgsvectorlayer.cpp.
References displayExpression(), and mDisplayExpression.
Referenced by QgsDualView::previewExpressionChanged().
void QgsVectorLayer::setDisplayField | ( | QString | fldName = "" | ) |
Set the primary display field to be used in the identify results dialog.
sets the preferred display field based on some fuzzy logic
Definition at line 255 of file qgsvectorlayer.cpp.
References QgsFields::count(), hasGeometryType(), mDisplayField, pendingFields(), QgsDebugMsg, and QgsFields::size().
Referenced by readSymbology(), and setDataProvider().
void QgsVectorLayer::setEditForm | ( | QString | ui | ) |
set edit form (added in 1.4)
Definition at line 3153 of file qgsvectorlayer.cpp.
References mEditForm.
void QgsVectorLayer::setEditFormInit | ( | QString | function | ) |
set python function for edit form initialization (added in 1.4)
Definition at line 3168 of file qgsvectorlayer.cpp.
References mEditFormInit.
void QgsVectorLayer::setEditorLayout | ( | EditorLayout | editorLayout | ) |
set the active layout for the attribute editor for this layer (added in 1.9)
Definition at line 3133 of file qgsvectorlayer.cpp.
References editorLayout(), and mEditorLayout.
void QgsVectorLayer::setEditorWidgetV2 | ( | int | attrIdx, |
const QString & | widgetType | ||
) |
Definition at line 3138 of file qgsvectorlayer.cpp.
References mEditorWidgetV2Types.
void QgsVectorLayer::setEditorWidgetV2Config | ( | int | attrIdx, |
const QMap< QString, QVariant > & | config | ||
) |
Definition at line 3143 of file qgsvectorlayer.cpp.
References mEditorWidgetV2Configs.
void QgsVectorLayer::setEditType | ( | int | idx, |
EditType | edit | ||
) |
set edit type
Definition at line 3121 of file qgsvectorlayer.cpp.
References QgsFields::count(), mEditTypes, QgsMapLayer::name(), pendingFields(), and QgsMapLayer::type().
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inline |
Definition at line 1157 of file qgsvectorlayer.h.
|
inline |
Definition at line 1154 of file qgsvectorlayer.h.
|
protectedvirtual |
Set the extent.
Reimplemented from QgsMapLayer.
Definition at line 1175 of file qgsvectorlayer.cpp.
References mValidExtent.
Referenced by extent().
void QgsVectorLayer::setFeatureBlendMode | ( | const QPainter::CompositionMode & | blendMode | ) |
Write blend mode for features.
Definition at line 3574 of file qgsvectorlayer.cpp.
References featureBlendMode(), featureBlendModeChanged(), and mFeatureBlendMode.
Referenced by readSymbology().
|
inline |
Set type of feature form pop-up suppression after feature creation (overrides app setting)
Definition at line 1237 of file qgsvectorlayer.h.
void QgsVectorLayer::setFieldEditable | ( | int | idx, |
bool | editable | ||
) |
set edit widget editable
Definition at line 3257 of file qgsvectorlayer.cpp.
References QgsFields::count(), mFieldEditables, QgsMapLayer::name(), and pendingFields().
void QgsVectorLayer::setLabelOnTop | ( | int | idx, |
bool | onTop | ||
) |
label widget on top
Definition at line 3264 of file qgsvectorlayer.cpp.
References QgsFields::count(), mLabelOnTop, QgsMapLayer::name(), and pendingFields().
void QgsVectorLayer::setLayerTransparency | ( | int | layerTransparency | ) |
Write transparency for layer.
Definition at line 3587 of file qgsvectorlayer.cpp.
References layerTransparency(), layerTransparencyChanged(), and mLayerTransparency.
Referenced by readSymbology().
void QgsVectorLayer::setProviderEncoding | ( | const QString & | encoding | ) |
Sets the textencoding of the data provider.
Definition at line 946 of file qgsvectorlayer.cpp.
References mDataProvider, QgsVectorDataProvider::setEncoding(), and updateFields().
bool QgsVectorLayer::setReadOnly | ( | bool | readonly = true | ) |
Make layer read-only (editing disabled) or not.
Definition at line 3097 of file qgsvectorlayer.cpp.
References mEditBuffer, and mReadOnly.
void QgsVectorLayer::setRendererV2 | ( | QgsFeatureRendererV2 * | r | ) |
Set renderer V2.
Definition at line 3276 of file qgsvectorlayer.cpp.
References hasGeometryType(), mRendererV2, mSymbolFeatureCounted, mSymbolFeatureCountMap, and rendererChanged().
Referenced by QgsVectorLayer(), readSld(), and readSymbology().
void QgsVectorLayer::setSelectedFeatures | ( | const QgsFeatureIds & | ids | ) |
Change selection to the new set of features.
Dismisses the current selection. Will emit the selectionChanged( QgsFeatureIds, QgsFeatureIds, bool ) signal with the clearAndSelect flag set.
ids | The ids which will be the new selection |
Definition at line 2815 of file qgsvectorlayer.cpp.
References mSelectedFeatureIds, selectionChanged(), and QgsMapLayer::setCacheImage().
Referenced by addFeatures(), invertSelection(), QgsExpressionSelectionDialog::on_mActionAddToSelection_triggered(), QgsExpressionSelectionDialog::on_mActionRemoveFromSelection_triggered(), QgsExpressionSelectionDialog::on_mActionSelect_triggered(), QgsExpressionSelectionDialog::on_mActionSelectInstersect_triggered(), removeSelection(), select(), selectAll(), and QgsVectorLayerSelectionManager::setSelectedFeatures().
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Set the simplification settings for fast rendering of features.
Definition at line 1382 of file qgsvectorlayer.h.
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Set the string (typically sql) used to define a subset of the layer.
subset | The subset string. This may be the where clause of a sql statement or other defintion string specific to the underlying dataprovider and data store. |
Definition at line 1273 of file qgsvectorlayer.cpp.
References QgsDataProvider::dataSourceUri(), mDataProvider, QgsMapLayer::mDataSource, QgsDebugMsg, QgsMapLayer::setCacheImage(), QgsDataProvider::setSubsetString(), and updateExtents().
Referenced by QgsQueryBuilder::accept(), QgsQueryBuilder::clear(), QgsOfflineEditing::copyVectorLayer(), QgsQueryBuilder::on_btnGetAllValues_clicked(), QgsQueryBuilder::on_btnSampleValues_clicked(), QgsQueryBuilder::reject(), and QgsQueryBuilder::test().
bool QgsVectorLayer::simplifyDrawingCanbeApplied | ( | const QgsRenderContext & | renderContext, |
QgsVectorSimplifyMethod::SimplifyHint | simplifyHint | ||
) | const |
Returns whether the VectorLayer can apply the specified simplification hint.
Definition at line 1293 of file qgsvectorlayer.cpp.
References geometryType(), hasGeometryType(), QgsVectorSimplifyMethod::maximumScale(), mDataProvider, mEditBuffer, mSimplifyMethod, QGis::Point, QgsRenderContext::rendererScale(), QgsVectorSimplifyMethod::simplifyHints(), and QgsRenderContext::useRenderingOptimization().
Referenced by QgsFillSymbolLayerV2::_renderPolygon(), draw(), and QgsSimpleLineSymbolLayerV2::renderPolyline().
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Returns the simplification settings for fast rendering of features.
Definition at line 1386 of file qgsvectorlayer.h.
Referenced by QgsFillSymbolLayerV2::_renderPolygon(), draw(), and QgsSimpleLineSymbolLayerV2::renderPolyline().
bool QgsVectorLayer::snapPoint | ( | QgsPoint & | point, |
double | tolerance | ||
) |
Snaps a point to the closest vertex if there is one within the snapping tolerance.
point | The point which is set to the position of a vertex if there is one within the snapping tolerance. If there is no point within this tolerance, point is left unchanged. |
tolerance | The snapping tolerance |
Definition at line 2878 of file qgsvectorlayer.cpp.
References hasGeometryType(), QgsPoint::setX(), QgsPoint::setY(), QgsSnapper::SnapToVertex, and snapWithContext().
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Snaps to a geometry and adds the result to the multimap if it is within the snapping result.
startPoint | start point of the snap |
featureId | id of feature |
geom | geometry to snap |
sqrSnappingTolerance | squared search tolerance of the snap |
snappingResults | list to which the result is appended |
snap_to | snap to vertex or to segment |
Definition at line 2955 of file qgsvectorlayer.cpp.
References QgsSnappingResult::afterVertex, QgsSnappingResult::afterVertexNr, QgsSnappingResult::beforeVertex, QgsSnappingResult::beforeVertexNr, QgsGeometry::closestSegmentWithContext(), QgsGeometry::closestVertex(), QgsMapLayer::crs(), geometryType(), QgsSnappingResult::layer, QGis::Point, QgsSnappingResult::snappedAtGeometry, QgsSnappingResult::snappedVertex, QgsSnappingResult::snappedVertexNr, QgsSnapper::SnapToSegment, QgsSnapper::SnapToVertex, QgsSnapper::SnapToVertexAndSegment, and QgsGeometry::vertexAt().
Referenced by snapWithContext().
int QgsVectorLayer::snapWithContext | ( | const QgsPoint & | startPoint, |
double | snappingTolerance, | ||
QMultiMap< double, QgsSnappingResult > & | snappingResults, | ||
QgsSnapper::SnappingType | snap_to | ||
) |
Snaps to segment or vertex within given tolerance.
startPoint | point to snap (in layer coordinates) |
snappingTolerance | distance tolerance for snapping |
snappingResults | snapping results. Key is the distance between startPoint and snapping target |
snap_to | to segment / to vertex |
Definition at line 2903 of file qgsvectorlayer.cpp.
References QgsGeometry::boundingBox(), QgsGeometryCache::cachedGeometries(), QgsGeometryCache::cachedGeometriesRect(), QgsRectangle::contains(), QgsFeatureRequest::ExactIntersect, QgsFeature::geometry(), getFeatures(), hasGeometryType(), QgsFeature::id(), QgsRectangle::intersects(), mCache, mDataProvider, QgsFeatureIterator::nextFeature(), snapToGeometry(), QgsPoint::x(), and QgsPoint::y().
Referenced by QgsVectorLayerEditUtils::addTopologicalPoints(), and snapPoint().
int QgsVectorLayer::splitFeatures | ( | const QList< QgsPoint > & | splitLine, |
bool | topologicalEditing = false |
||
) |
Splits features cut by the given line.
splitLine | line that splits the layer features |
topologicalEditing | true if topological editing is enabled |
Definition at line 1484 of file qgsvectorlayer.cpp.
References mDataProvider, mEditBuffer, and QgsVectorLayerEditUtils::splitFeatures().
int QgsVectorLayer::splitParts | ( | const QList< QgsPoint > & | splitLine, |
bool | topologicalEditing = false |
||
) |
Splits parts cut by the given line.
splitLine | line that splits the layer features |
topologicalEditing | true if topological editing is enabled |
Definition at line 1475 of file qgsvectorlayer.cpp.
References mDataProvider, mEditBuffer, and QgsVectorLayerEditUtils::splitParts().
bool QgsVectorLayer::startEditing | ( | ) |
Make layer editable.
Definition at line 1575 of file qgsvectorlayer.cpp.
References attributeAdded(), attributeDeleted(), attributeValueChanged(), QgsVectorDataProvider::capabilities(), committedFeaturesAdded(), committedFeaturesRemoved(), QgsVectorDataProvider::EditingCapabilities, editingStarted(), featureAdded(), featureDeleted(), geometryChanged(), invalidateSymbolCountedFlag(), layerModified(), mDataProvider, mEditBuffer, mReadOnly, QgsVectorLayerEditBuffer, and updateFields().
Referenced by QgsOfflineEditing::copyVectorLayer(), and QgsOfflineEditing::synchronize().
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Add joined attributes to a feature.
Stop version 2 renderer and selected renderer (if required)
Definition at line 3599 of file qgsvectorlayer.cpp.
References mRendererV2, QgsSingleSymbolRendererV2::stopRender(), and QgsFeatureRendererV2::stopRender().
Referenced by drawRendererV2(), and drawRendererV2Levels().
QString QgsVectorLayer::storageType | ( | ) | const |
Returns the permanent storage type for this layer as a friendly name.
Definition at line 218 of file qgsvectorlayer.cpp.
References mDataProvider, and QgsVectorDataProvider::storageType().
Referenced by QgsVectorLayerEditBuffer::commitChanges(), QgsQueryBuilder::fillValues(), QgsVectorLayerImport::importLayer(), metadata(), and QgsQueryBuilder::on_lstValues_doubleClicked().
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Get the string (typically sql) used to define a subset of the layer.
Definition at line 1263 of file qgsvectorlayer.cpp.
References mDataProvider, QgsDebugMsg, and QgsDataProvider::subsetString().
Referenced by QgsQueryBuilder::on_btnGetAllValues_clicked(), QgsQueryBuilder::on_btnSampleValues_clicked(), QgsQueryBuilder::QgsQueryBuilder(), QgsQueryBuilder::reject(), and QgsQueryBuilder::test().
int QgsVectorLayer::translateFeature | ( | QgsFeatureId | featureId, |
double | dx, | ||
double | dy | ||
) |
Translates feature by dx, dy.
featureId | id of the feature to translate |
dx | translation of x-coordinate |
dy | translation of y-coordinate |
Definition at line 1466 of file qgsvectorlayer.cpp.
References mDataProvider, mEditBuffer, and QgsVectorLayerEditUtils::translateFeature().
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Definition at line 931 of file qgsvectorlayer.cpp.
References QgsMapLayer::repaintRequested().
Referenced by deleteSelectedFeatures().
void QgsVectorLayer::uniqueValues | ( | int | index, |
QList< QVariant > & | uniqueValues, | ||
int | limit = -1 |
||
) |
Returns unique values for column.
index | column index for attribute |
uniqueValues | out: result list |
limit | maximum number of values to return (-1 if unlimited) |
Definition at line 3393 of file qgsvectorlayer.cpp.
References QgsFeature::attribute(), dataProvider(), QgsFields::fieldOrigin(), getFeatures(), index, QgsMapLayerRegistry::instance(), QgsVectorLayerJoinBuffer::joinForFieldIndex(), QgsVectorJoinInfo::joinLayerId, QgsVectorLayerEditBuffer::mAddedFeatures, QgsMapLayerRegistry::mapLayer(), QgsVectorLayerEditBuffer::mChangedAttributeValues, mDataProvider, QgsVectorLayerEditBuffer::mDeletedAttributeIds, QgsVectorLayerEditBuffer::mDeletedFeatureIds, mEditBuffer, mJoinBuffer, mUpdatedFields, QgsFeatureIterator::nextFeature(), QgsFeatureRequest::NoGeometry, QgsFields::OriginEdit, QgsFields::OriginJoin, QgsFields::OriginProvider, and QgsVectorDataProvider::uniqueValues().
Referenced by QgsExpressionBuilderWidget::fillFieldValues(), and QgsQueryBuilder::fillValues().
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Is emitted, whenever the fields available from this layer have been changed.
This can be due to manually adding attributes or due to a join.
Referenced by updateFields().
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Update the extents for the layer.
This is necessary if features are added/deleted or the layer has been subsetted.
Definition at line 1170 of file qgsvectorlayer.cpp.
References mValidExtent.
Referenced by addFeature(), QgsVectorLayerEditBuffer::addFeatures(), addFeatures(), changeGeometry(), deleteFeature(), deleteSelectedFeatures(), setDataProvider(), and setSubsetString().
bool QgsVectorLayer::updateFeature | ( | QgsFeature & | f | ) |
Updates an existing feature.
This method needs to query the datasource on every call. Consider using changeAttributeValue() or changeGeometry() instead.
f | Feature to update |
Definition at line 1331 of file qgsvectorlayer.cpp.
References QgsFeature::attributes(), changeAttributeValue(), changeGeometry(), QgsFeature::geometry(), getFeatures(), QgsFeature::id(), QgsGeometry::isGeosEqual(), QgsFeatureRequest::NoGeometry, QgsDebugMsg, QgsFeatureRequest::setFilterFid(), QgsFeatureRequest::setFlags(), and QgsFeatureRequest::setSubsetOfAttributes().
void QgsVectorLayer::updateFields | ( | ) |
Assembles mUpdatedFields considering provider fields, joined fields and added fields.
Definition at line 3366 of file qgsvectorlayer.cpp.
References QgsVectorLayerJoinBuffer::containsJoins(), QgsVectorDataProvider::fields(), mDataProvider, mEditBuffer, mJoinBuffer, mUpdatedFields, updatedFields(), QgsVectorLayerJoinBuffer::updateFields(), and QgsVectorLayerEditBuffer::updateFields().
Referenced by addJoin(), QgsZonalStatistics::calculateStatistics(), QgsVectorLayerEditBuffer::commitChanges(), commitChanges(), readXml(), removeJoin(), rollBack(), setDataProvider(), setProviderEncoding(), startEditing(), and QgsVectorLayerEditBuffer::updateLayerFields().
QMap< QString, QVariant > & QgsVectorLayer::valueMap | ( | int | idx | ) |
access value map
Definition at line 3173 of file qgsvectorlayer.cpp.
References QgsFields::count(), mValueMaps, pendingFields(), and QgsDebugMsg.
Referenced by QgsAttributeEditor::createAttributeEditor().
QgsVectorLayer::ValueRelationData & QgsVectorLayer::valueRelation | ( | int | idx | ) |
access relations
Definition at line 4242 of file qgsvectorlayer.cpp.
References QgsFields::count(), mValueRelations, pendingFields(), and QgsDebugMsg.
Referenced by QgsAttributeEditor::createAttributeEditor(), and QgsAttributeTableModel::loadAttributes().
const QList< QgsVectorJoinInfo > & QgsVectorLayer::vectorJoins | ( | ) | const |
Definition at line 3361 of file qgsvectorlayer.cpp.
References mJoinBuffer, and QgsVectorLayerJoinBuffer::vectorJoins().
Referenced by QgsProject::addLayer().
QSize & QgsVectorLayer::widgetSize | ( | int | idx | ) |
access widget size for photo and webview widget
Definition at line 3223 of file qgsvectorlayer.cpp.
References mWidgetSize, and pendingFields().
Referenced by QgsAttributeEditor::createAttributeEditor(), and QgsAttributeEditor::loadPixmap().
QGis::WkbType QgsVectorLayer::wkbType | ( | ) | const |
Returns the WKBType or WKBUnknown in case of error.
Definition at line 1018 of file qgsvectorlayer.cpp.
References mWkbType.
Referenced by QgsOfflineEditing::copyVectorLayer(), QgsPointDisplacementRenderer::createDisplacementGroups(), QgsVectorLayerImport::importLayer(), and QgsVectorFileWriter::writeAsVectorFormat().
bool QgsVectorLayer::writeSld | ( | QDomNode & | node, |
QDomDocument & | doc, | ||
QString & | errorMessage | ||
) | const |
Definition at line 2547 of file qgsvectorlayer.cpp.
References hasGeometryType(), mRendererV2, QgsMapLayer::name(), and QgsFeatureRendererV2::writeSld().
Referenced by QgsMapLayer::exportSldStyle().
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Write the symbology for the layer into the docment 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 |
Implements QgsMapLayer.
Definition at line 2233 of file qgsvectorlayer.cpp.
References QgsMapLayer::blendMode(), Calendar, CheckBox, Classification, Color, DialRange, displayField(), EditorWidgetV2, EditRange, Enumeration, featureBlendMode(), featureFormSuppress(), fieldNameIndex(), FileName, QgsVectorSimplifyMethod::forceLocalOptimization(), GeneratedLayout, QgsMapRenderer::getBlendModeEnum(), hasGeometryType(), hasLabelsEnabled(), Hidden, Immutable, QgsProject::instance(), QgsLabel::labelField(), layerTransparency(), LineEdit, mActions, QgsVectorLayer::ValueRelationData::mAllowMulti, QgsVectorLayer::ValueRelationData::mAllowNull, mAnnotationForm, mAttributeAliasMap, mAttributeEditorElements, QgsVectorSimplifyMethod::maximumScale(), QgsLabel::maxScale(), mCheckedStates, mDateFormats, mDiagramLayerSettings, mDiagramRenderer, mEditForm, mEditFormInit, mEditorLayout, mEditTypes, mExcludeAttributesWFS, mExcludeAttributesWMS, mFieldEditables, QgsVectorLayer::ValueRelationData::mFilterExpression, QgsLabel::minScale(), QgsVectorLayer::ValueRelationData::mKey, mLabel, mLabelOnTop, QgsVectorLayer::ValueRelationData::mLayer, QgsVectorLayer::ValueRelationData::mOrderByValue, mRanges, mRendererV2, mSimplifyMethod, QgsVectorLayer::ValueRelationData::mValue, mValueMaps, mValueRelations, mWidgetSize, Photo, QgsFeatureRendererV2::save(), QgsLabel::scaleBasedVisibility(), QgsVectorSimplifyMethod::simplifyHints(), SliderRange, TabLayout, QgsLabel::Text, TextEdit, QgsVectorSimplifyMethod::threshold(), UiFileLayout, UniqueValues, UniqueValuesEditable, UuidGenerator, ValueMap, ValueRelation, WebView, QgsMapLayer::writeCustomProperties(), QgsDiagramLayerSettings::writeXML(), QgsLabel::writeXML(), QgsAttributeAction::writeXML(), and QgsDiagramRendererV2::writeXML().
Referenced by QgsOfflineEditing::copySymbology(), and writeXml().
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write vector layer specific state to project file Dom node.
Reimplemented from QgsMapLayer.
Definition at line 1802 of file qgsvectorlayer.cpp.
References QgsVectorDataProvider::encoding(), geometryType(), mDataProvider, mDisplayExpression, mJoinBuffer, providerType(), QgsDebugMsg, QGis::vectorGeometryType(), writeSymbology(), and QgsVectorLayerJoinBuffer::writeXml().
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Definition at line 1746 of file qgsvectorlayer.h.
Referenced by startEditing().
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Definition at line 1768 of file qgsvectorlayer.h.
Referenced by getFeatures().
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The user-defined actions that are accessed from the Identify Results dialog box.
Definition at line 1653 of file qgsvectorlayer.h.
Referenced by QgsVectorLayer(), readSymbology(), writeSymbology(), and ~QgsVectorLayer().
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Definition at line 1739 of file qgsvectorlayer.h.
Referenced by readSymbology(), setAnnotationForm(), and writeSymbology().
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Map that stores the aliases for attributes.
Key is the attribute name and value the alias for that attribute
Definition at line 1668 of file qgsvectorlayer.h.
Referenced by addAttributeAlias(), attributeAlias(), readSymbology(), and writeSymbology().
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Stores a list of attribute editor elements (Each holding a tree structure for a tab in the attribute editor)
Definition at line 1671 of file qgsvectorlayer.h.
Referenced by addAttributeEditorWidget(), attributeEditorElements(), clearAttributeEditorWidgets(), onRelationsLoaded(), readSymbology(), and writeSymbology().
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cache for some vector layer data - currently only geometries for faster editing
Definition at line 1742 of file qgsvectorlayer.h.
Referenced by commitChanges(), draw(), drawRendererV2(), drawRendererV2Levels(), rollBack(), snapWithContext(), and ~QgsVectorLayer().
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Definition at line 1721 of file qgsvectorlayer.h.
Referenced by checkedState(), readSymbology(), setCheckedState(), and writeSymbology().
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Definition at line 1714 of file qgsvectorlayer.h.
Referenced by commitChanges(), and commitErrors().
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Definition at line 1766 of file qgsvectorlayer.h.
Referenced by drawRendererV2(), and onCacheImageDelete().
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The current size of editing marker.
Definition at line 1709 of file qgsvectorlayer.h.
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The current type of editing marker.
Definition at line 1706 of file qgsvectorlayer.h.
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Pointer to data provider derived from the abastract base class QgsDataProvider.
Definition at line 1639 of file qgsvectorlayer.h.
Referenced by addAttribute(), addFeature(), addFeatures(), addPart(), addRing(), addTopologicalPoints(), boundingBoxOfSelected(), capabilitiesString(), changeAttributeValue(), changeGeometry(), commitChanges(), countSymbolFeatures(), dataComment(), dataProvider(), deleteAttribute(), deleteSelectedFeatures(), deleteVertex(), extent(), featureCount(), geometryType(), getFeatures(), insertVertex(), isEditable(), maximumValue(), minimumValue(), moveVertex(), pendingFeatureCount(), pendingPkAttributesList(), readXml(), reload(), setCoordinateSystem(), setDataProvider(), setProviderEncoding(), setSubsetString(), simplifyDrawingCanbeApplied(), snapWithContext(), splitFeatures(), splitParts(), startEditing(), storageType(), subsetString(), translateFeature(), uniqueValues(), updateFields(), writeXml(), and ~QgsVectorLayer().
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Definition at line 1723 of file qgsvectorlayer.h.
Referenced by dateFormat(), readSymbology(), and writeSymbology().
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Definition at line 1755 of file qgsvectorlayer.h.
Referenced by prepareLabelingAndDiagrams(), readSymbology(), setDiagramLayerSettings(), writeSymbology(), and ~QgsVectorLayer().
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Definition at line 1752 of file qgsvectorlayer.h.
Referenced by drawRendererV2(), drawRendererV2Levels(), prepareLabelingAndDiagrams(), readSymbology(), setDiagramRenderer(), and writeSymbology().
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the preview expression used to generate a human readable preview string for features
Definition at line 1647 of file qgsvectorlayer.h.
Referenced by displayExpression(), readXml(), setDisplayExpression(), and writeXml().
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index of the primary label field
Definition at line 1644 of file qgsvectorlayer.h.
Referenced by displayField(), and setDisplayField().
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stores information about uncommitted changes to layer
Definition at line 1745 of file qgsvectorlayer.h.
Referenced by addAttribute(), addFeature(), addFeatures(), addPart(), addRing(), addTopologicalPoints(), changeAttributeValue(), changeGeometry(), commitChanges(), deleteAttribute(), deleteFeature(), deleteVertex(), draw(), drawRendererV2(), drawRendererV2Levels(), extent(), insertVertex(), isEditable(), isModified(), maximumValue(), minimumValue(), moveVertex(), pendingFeatureCount(), rollBack(), setReadOnly(), simplifyDrawingCanbeApplied(), splitFeatures(), splitParts(), startEditing(), translateFeature(), uniqueValues(), updateFields(), and ~QgsVectorLayer().
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Definition at line 1732 of file qgsvectorlayer.h.
Referenced by editForm(), readSymbology(), setEditForm(), and writeSymbology().
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Definition at line 1732 of file qgsvectorlayer.h.
Referenced by editFormInit(), readSymbology(), setEditFormInit(), and writeSymbology().
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Defines the default layout to use for the attribute editor (Drag and drop, UI File, Generated)
Definition at line 1730 of file qgsvectorlayer.h.
Referenced by editorLayout(), readSymbology(), setEditorLayout(), and writeSymbology().
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Definition at line 1727 of file qgsvectorlayer.h.
Referenced by editorWidgetV2Config(), and setEditorWidgetV2Config().
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Definition at line 1726 of file qgsvectorlayer.h.
Referenced by editorWidgetV2(), and setEditorWidgetV2().
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Definition at line 1716 of file qgsvectorlayer.h.
Referenced by editType(), readSymbology(), setEditType(), and writeSymbology().
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Enables backbuffering for the map window.
This improves graphics performance, but the possibility to cancel rendering and incremental feature drawing will be lost.
Definition at line 1636 of file qgsvectorlayer.h.
Referenced by draw(), and drawRendererV2().
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Attributes which are not published in WFS.
Definition at line 1676 of file qgsvectorlayer.h.
Referenced by readSymbology(), and writeSymbology().
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Attributes which are not published in WMS.
Definition at line 1674 of file qgsvectorlayer.h.
Referenced by readSymbology(), and writeSymbology().
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Blend mode for features.
Definition at line 1700 of file qgsvectorlayer.h.
Referenced by featureBlendMode(), and setFeatureBlendMode().
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Type of feature form suppression after feature creation.
Definition at line 1736 of file qgsvectorlayer.h.
Referenced by readSymbology().
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Definition at line 1717 of file qgsvectorlayer.h.
Referenced by fieldEditable(), readSymbology(), setFieldEditable(), and writeSymbology().
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Definition at line 1749 of file qgsvectorlayer.h.
Referenced by addJoin(), createJoinCaches(), maximumValue(), minimumValue(), QgsVectorLayerFeatureIterator::prepareJoins(), QgsVectorLayerFeatureIterator::QgsVectorLayerFeatureIterator(), readXml(), removeJoin(), setDataProvider(), uniqueValues(), updateFields(), vectorJoins(), writeXml(), and ~QgsVectorLayer().
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Label.
Definition at line 1691 of file qgsvectorlayer.h.
Referenced by drawLabels(), label(), readSymbology(), setDataProvider(), writeSymbology(), and ~QgsVectorLayer().
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Whether 'labeling font not found' has be shown for this layer (only show once in QgsMessageBar, on first rendering)
Definition at line 1697 of file qgsvectorlayer.h.
Referenced by prepareLabelingAndDiagrams().
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Display labels.
Definition at line 1694 of file qgsvectorlayer.h.
Referenced by drawLabels(), enableLabels(), hasLabelsEnabled(), and setDataProvider().
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Definition at line 1718 of file qgsvectorlayer.h.
Referenced by labelOnTop(), readSymbology(), setLabelOnTop(), and writeSymbology().
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Layer transparency.
Definition at line 1703 of file qgsvectorlayer.h.
Referenced by layerTransparency(), and setLayerTransparency().
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Definition at line 1758 of file qgsvectorlayer.h.
Referenced by extent().
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Definition at line 1641 of file qgsvectorlayer.h.
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Data provider key.
Definition at line 1650 of file qgsvectorlayer.h.
Referenced by getStyleFromDatabase(), listStylesInDatabase(), loadNamedStyle(), providerType(), QgsVectorLayer(), readXml(), saveStyleToDatabase(), and setDataProvider().
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Definition at line 1720 of file qgsvectorlayer.h.
Referenced by range(), readSymbology(), and writeSymbology().
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Flag indicating whether the layer is in read-only mode (editing disabled) or not.
Definition at line 1656 of file qgsvectorlayer.h.
Referenced by isReadOnly(), setReadOnly(), and startEditing().
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Renderer object which holds the information about how to display the features.
Definition at line 1685 of file qgsvectorlayer.h.
Referenced by countSymbolFeatures(), draw(), drawLabels(), drawRendererV2(), drawRendererV2Levels(), rendererV2(), setRendererV2(), stopRendererV2(), writeSld(), writeSymbology(), and ~QgsVectorLayer().
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Set holding the feature IDs that are activated.
Note that if a feature subsequently gets deleted (i.e. by its addition to mDeletedFeatureIds), it always needs to be removed from mSelectedFeatureIds as well.
Definition at line 1662 of file qgsvectorlayer.h.
Referenced by addPart(), boundingBoxOfSelected(), QgsVectorLayerEditBuffer::commitChanges(), deleteFeature(), deleteSelectedFeatures(), deselect(), drawLabels(), drawRendererV2(), drawRendererV2Levels(), invertSelection(), invertSelectionInRectangle(), modifySelection(), removeSelection(), select(), selectedFeatureCount(), selectedFeatures(), selectedFeaturesIds(), and setSelectedFeatures().
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Simplification object which holds the information about how to simplify the features for fast rendering.
Definition at line 1688 of file qgsvectorlayer.h.
Referenced by draw(), QgsVectorLayer(), readSymbology(), simplifyDrawingCanbeApplied(), and writeSymbology().
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Definition at line 1761 of file qgsvectorlayer.h.
Referenced by countSymbolFeatures(), featureCount(), invalidateSymbolCountedFlag(), and setRendererV2().
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Definition at line 1764 of file qgsvectorlayer.h.
Referenced by countSymbolFeatures(), featureCount(), and setRendererV2().
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Map that stores the tab for attributes in the edit form.
Key is the tab order and value the tab name
Definition at line 1679 of file qgsvectorlayer.h.
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field map to commit
Definition at line 1665 of file qgsvectorlayer.h.
Referenced by QgsVectorLayerEditBuffer::addFeature(), QgsVectorLayerFeatureIterator::fetchFeature(), fieldEditable(), maximumValue(), minimumValue(), pendingAllAttributesList(), pendingFields(), pendingPkAttributesList(), uniqueValues(), updateFields(), QgsVectorLayerFeatureIterator::useAddedFeature(), and QgsVectorLayerFeatureIterator::useChangedAttributeFeature().
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Update threshold for drawing features as they are read.
A value of zero indicates that no features will be drawn until all have been read
Definition at line 1630 of file qgsvectorlayer.h.
Referenced by draw(), and drawRendererV2().
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Definition at line 1757 of file qgsvectorlayer.h.
Referenced by extent(), setExtent(), and updateExtents().
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Definition at line 1719 of file qgsvectorlayer.h.
Referenced by readSymbology(), valueMap(), and writeSymbology().
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Definition at line 1722 of file qgsvectorlayer.h.
Referenced by readSymbology(), valueRelation(), and writeSymbology().
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Flag if the vertex markers should be drawn only for selection (true) or for all features (false)
Definition at line 1712 of file qgsvectorlayer.h.
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Definition at line 1724 of file qgsvectorlayer.h.
Referenced by readSymbology(), widgetSize(), and writeSymbology().
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Geometry type as defined in enum WkbType (qgis.h)
Definition at line 1682 of file qgsvectorlayer.h.
Referenced by setDataProvider(), and wkbType().