#include <qgscategorizedsymbolrendererv2.h>

Inheritance diagram for QgsCategorizedSymbolRendererV2:

Collaboration diagram for QgsCategorizedSymbolRendererV2:

Public Member Functions
	QgsCategorizedSymbolRendererV2 (QString attrName=QString(), QgsCategoryList categories=QgsCategoryList())
virtual	~QgsCategorizedSymbolRendererV2 ()
virtual QgsSymbolV2 *	symbolForFeature (QgsFeature &feature)
virtual void	startRender (QgsRenderContext &context, const QgsVectorLayer *vlayer)
virtual void	stopRender (QgsRenderContext &context)
virtual QList< QString >	usedAttributes ()
virtual QString	dump ()
	for debugging
virtual QgsFeatureRendererV2 *	clone ()
virtual QgsSymbolV2List	symbols ()
	for symbol levels
const QgsCategoryList &	categories ()
int	categoryIndexForValue (QVariant val)
	return index of category with specified value (-1 if not found)
bool	updateCategoryValue (int catIndex, const QVariant &value)
bool	updateCategorySymbol (int catIndex, QgsSymbolV2 *symbol)
bool	updateCategoryLabel (int catIndex, QString label)
void	addCategory (const QgsRendererCategoryV2 &category)
bool	deleteCategory (int catIndex)
void	deleteAllCategories ()
QString	classAttribute () const
void	setClassAttribute (QString attr)
virtual QDomElement	save (QDomDocument &doc)
	store renderer info to XML element
virtual QgsLegendSymbologyList	legendSymbologyItems (QSize iconSize)
	return a list of symbology items for the legend
virtual QgsLegendSymbolList	legendSymbolItems ()
	return a list of item text / symbol
QgsSymbolV2 *	sourceSymbol ()
void	setSourceSymbol (QgsSymbolV2 *sym)
QgsVectorColorRampV2 *	sourceColorRamp ()
void	setSourceColorRamp (QgsVectorColorRampV2 *ramp)
void	setRotationField (QString fieldName)
QString	rotationField () const
void	setSizeScaleField (QString fieldName)
QString	sizeScaleField () const
Public Member Functions inherited from QgsFeatureRendererV2
QString	type () const
virtual	~QgsFeatureRendererV2 ()
virtual void	renderFeature (QgsFeature &feature, QgsRenderContext &context, int layer=-1, bool selected=false, bool drawVertexMarker=false)
bool	usingSymbolLevels () const
void	setUsingSymbolLevels (bool usingSymbolLevels)
bool	usingFirstRule () const
void	setUsingFirstRule (bool usingFirstRule)
void	setVertexMarkerAppearance (int type, int size)
	set type and size of editing vertex markers for subsequent rendering

Static Public Member Functions
static QgsFeatureRendererV2 *	create (QDomElement &element)
	create renderer from XML element
Static Public Member Functions inherited from QgsFeatureRendererV2
static QgsFeatureRendererV2 *	defaultRenderer (QGis::GeometryType geomType)
	return a new renderer - used by default in vector layers
static QgsFeatureRendererV2 *	load (QDomElement &symbologyElem)
	create a renderer from XML element

Protected Member Functions
void	rebuildHash ()
QgsSymbolV2 *	symbolForValue (QVariant value)
Protected Member Functions inherited from QgsFeatureRendererV2
	QgsFeatureRendererV2 (QString type)
void	renderVertexMarker (QPointF &pt, QgsRenderContext &context)
	render editing vertex marker at specified point
void	renderVertexMarkerPolyline (QPolygonF &pts, QgsRenderContext &context)
	render editing vertex marker for a polyline
void	renderVertexMarkerPolygon (QPolygonF &pts, QList< QPolygonF > *rings, QgsRenderContext &context)
	render editing vertex marker for a polygon

Protected Attributes
QString	mAttrName
QgsCategoryList	mCategories
QgsSymbolV2 *	mSourceSymbol
QgsVectorColorRampV2 *	mSourceColorRamp
QString	mRotationField
QString	mSizeScaleField
int	mAttrNum
	attribute index (derived from attribute name in startRender)
int	mRotationFieldIdx
int	mSizeScaleFieldIdx
QHash< QString, QgsSymbolV2 * >	mSymbolHash
	hashtable for faster access to symbols
QHash< QString, QgsSymbolV2 * >	mTempSymbols
	temporary symbols, used for data-defined rotation and scaling
Protected Attributes inherited from QgsFeatureRendererV2
QString	mType
bool	mUsingSymbolLevels
bool	mUsingFirstRule
int	mCurrentVertexMarkerType
	The current type of editing marker.
int	mCurrentVertexMarkerSize
	The current size of editing marker.

Additional Inherited Members
Static Protected Member Functions inherited from QgsFeatureRendererV2
static unsigned char *	_getPoint (QPointF &pt, QgsRenderContext &context, unsigned char *wkb)
static unsigned char *	_getLineString (QPolygonF &pts, QgsRenderContext &context, unsigned char *wkb)
static unsigned char *	_getPolygon (QPolygonF &pts, QList< QPolygonF > &holes, QgsRenderContext &context, unsigned char *wkb)

Detailed Description

Definition at line 43 of file qgscategorizedsymbolrendererv2.h.

Constructor & Destructor Documentation

QgsCategorizedSymbolRendererV2::QgsCategorizedSymbolRendererV2	(	QString	attrName = `QString()`,
		QgsCategoryList	categories = `QgsCategoryList()`
	)

Definition at line 73 of file qgscategorizedsymbolrendererv2.cpp.

References mCategories, QgsDebugMsg, and QgsRendererCategoryV2::symbol().

Referenced by clone(), and create().

QgsCategorizedSymbolRendererV2::~QgsCategorizedSymbolRendererV2 ( )

virtual

Definition at line 94 of file qgscategorizedsymbolrendererv2.cpp.

References mCategories, mSourceColorRamp, and mSourceSymbol.

Member Function Documentation

void QgsCategorizedSymbolRendererV2::addCategory ( const QgsRendererCategoryV2 & category )

Definition at line 214 of file qgscategorizedsymbolrendererv2.cpp.

References mCategories, QgsDebugMsg, and QgsRendererCategoryV2::symbol().

const QgsCategoryList& QgsCategorizedSymbolRendererV2::categories ( )

inline

Definition at line 65 of file qgscategorizedsymbolrendererv2.h.

Referenced by QgsAttributeEditor::createAttributeEditor(), legendSymbologyItems(), QgsRuleBasedRendererV2::refineRuleCategories(), and QgsSymbologyV2Conversion::rendererV2toV1().

int QgsCategorizedSymbolRendererV2::categoryIndexForValue ( QVariant val )

return index of category with specified value (-1 if not found)

Definition at line 180 of file qgscategorizedsymbolrendererv2.cpp.

References mCategories.

QString QgsCategorizedSymbolRendererV2::classAttribute ( ) const

inline

Definition at line 78 of file qgscategorizedsymbolrendererv2.h.

Referenced by legendSymbolItems(), legendSymbologyItems(), QgsRuleBasedRendererV2::refineRuleCategories(), and QgsSymbologyV2Conversion::rendererV2toV1().

QgsFeatureRendererV2 * QgsCategorizedSymbolRendererV2::clone ( )

virtual

Implements QgsFeatureRendererV2.

Definition at line 303 of file qgscategorizedsymbolrendererv2.cpp.

References QgsVectorColorRampV2::clone(), QgsSymbolV2::clone(), mAttrName, mCategories, mSourceColorRamp, mSourceSymbol, QgsCategorizedSymbolRendererV2(), rotationField(), setRotationField(), setSizeScaleField(), setSourceColorRamp(), setSourceSymbol(), QgsFeatureRendererV2::setUsingSymbolLevels(), sizeScaleField(), and QgsFeatureRendererV2::usingSymbolLevels().

QgsFeatureRendererV2 * QgsCategorizedSymbolRendererV2::create ( QDomElement & element )

static

create renderer from XML element

Definition at line 324 of file qgscategorizedsymbolrendererv2.cpp.

References QgsSymbolLayerV2Utils::clearSymbolMap(), QgsSymbolLayerV2Utils::loadColorRamp(), QgsSymbolLayerV2Utils::loadSymbols(), QgsCategorizedSymbolRendererV2(), setRotationField(), setSizeScaleField(), setSourceColorRamp(), and setSourceSymbol().

Referenced by QgsRendererV2Registry::QgsRendererV2Registry().

void QgsCategorizedSymbolRendererV2::deleteAllCategories ( )

Definition at line 235 of file qgscategorizedsymbolrendererv2.cpp.

References mCategories.

bool QgsCategorizedSymbolRendererV2::deleteCategory ( int catIndex )

Definition at line 226 of file qgscategorizedsymbolrendererv2.cpp.

References mCategories.

QString QgsCategorizedSymbolRendererV2::dump ( )

virtual

for debugging

Reimplemented from QgsFeatureRendererV2.

Definition at line 295 of file qgscategorizedsymbolrendererv2.cpp.

References mAttrName, and mCategories.

QgsLegendSymbolList QgsCategorizedSymbolRendererV2::legendSymbolItems ( )

virtual

return a list of item text / symbol

Note:: : this method was added in version 1.5

Reimplemented from QgsFeatureRendererV2.

Definition at line 472 of file qgscategorizedsymbolrendererv2.cpp.

References classAttribute(), and mCategories.

QgsLegendSymbologyList QgsCategorizedSymbolRendererV2::legendSymbologyItems ( QSize iconSize )

virtual

return a list of symbology items for the legend

Reimplemented from QgsFeatureRendererV2.

Definition at line 451 of file qgscategorizedsymbolrendererv2.cpp.

References categories(), classAttribute(), QgsRendererCategoryV2::label(), QgsRendererCategoryV2::symbol(), and QgsSymbolLayerV2Utils::symbolPreviewPixmap().

void QgsCategorizedSymbolRendererV2::rebuildHash ( )

protected

Definition at line 101 of file qgscategorizedsymbolrendererv2.cpp.

References mCategories, mSymbolHash, QgsRendererCategoryV2::symbol(), and QgsRendererCategoryV2::value().

Referenced by startRender().

QString QgsCategorizedSymbolRendererV2::rotationField ( ) const

inline

Note:: added in 1.6

Definition at line 103 of file qgscategorizedsymbolrendererv2.h.

Referenced by clone().

QDomElement QgsCategorizedSymbolRendererV2::save ( QDomDocument & doc )

virtual

store renderer info to XML element

Reimplemented from QgsFeatureRendererV2.

Definition at line 392 of file qgscategorizedsymbolrendererv2.cpp.

References QgsRendererCategoryV2::label(), mAttrName, mCategories, mRotationField, mSizeScaleField, mSourceColorRamp, mSourceSymbol, QgsFeatureRendererV2::mUsingSymbolLevels, RENDERER_TAG_NAME, QgsSymbolLayerV2Utils::saveColorRamp(), QgsSymbolLayerV2Utils::saveSymbols(), QgsRendererCategoryV2::symbol(), symbols(), and QgsRendererCategoryV2::value().

void QgsCategorizedSymbolRendererV2::setClassAttribute ( QString attr )

inline

Definition at line 79 of file qgscategorizedsymbolrendererv2.h.

void QgsCategorizedSymbolRendererV2::setRotationField ( QString fieldName )

inline

Note:: added in 1.6

Definition at line 101 of file qgscategorizedsymbolrendererv2.h.

Referenced by clone(), and create().

void QgsCategorizedSymbolRendererV2::setSizeScaleField ( QString fieldName )

inline

Note:: added in 1.6

Definition at line 106 of file qgscategorizedsymbolrendererv2.h.

Referenced by clone(), and create().

void QgsCategorizedSymbolRendererV2::setSourceColorRamp ( QgsVectorColorRampV2 * ramp )

Definition at line 506 of file qgscategorizedsymbolrendererv2.cpp.

References mSourceColorRamp.

Referenced by clone(), and create().

void QgsCategorizedSymbolRendererV2::setSourceSymbol ( QgsSymbolV2 * sym )

Definition at line 496 of file qgscategorizedsymbolrendererv2.cpp.

References mSourceSymbol.

Referenced by clone(), and create().

QString QgsCategorizedSymbolRendererV2::sizeScaleField ( ) const

inline

Note:: added in 1.6

Definition at line 108 of file qgscategorizedsymbolrendererv2.h.

Referenced by clone().

QgsVectorColorRampV2 * QgsCategorizedSymbolRendererV2::sourceColorRamp ( )

Definition at line 502 of file qgscategorizedsymbolrendererv2.cpp.

References mSourceColorRamp.

QgsSymbolV2 * QgsCategorizedSymbolRendererV2::sourceSymbol ( )

Definition at line 492 of file qgscategorizedsymbolrendererv2.cpp.

References mSourceSymbol.

void QgsCategorizedSymbolRendererV2::startRender	(	QgsRenderContext &	context,
		const QgsVectorLayer *	vlayer
	)

virtual

Implements QgsFeatureRendererV2.

Definition at line 240 of file qgscategorizedsymbolrendererv2.cpp.

References QgsSymbolV2::clone(), QgsSymbolV2::DataDefinedRotation, QgsSymbolV2::DataDefinedSizeScale, QgsVectorLayer::fieldNameIndex(), mAttrName, mAttrNum, mCategories, mRotationField, mRotationFieldIdx, mSizeScaleField, mSizeScaleFieldIdx, mTempSymbols, rebuildHash(), QgsSymbolV2::setRenderHints(), and QgsSymbolV2::startRender().

void QgsCategorizedSymbolRendererV2::stopRender ( QgsRenderContext & context )

virtual

Implements QgsFeatureRendererV2.

Definition at line 268 of file qgscategorizedsymbolrendererv2.cpp.

References mCategories, and mTempSymbols.

QgsSymbolV2 * QgsCategorizedSymbolRendererV2::symbolForFeature ( QgsFeature & feature )

virtual

Implements QgsFeatureRendererV2.

Definition at line 129 of file qgscategorizedsymbolrendererv2.cpp.

References QgsFeature::attributeMap(), QgsSymbolV2::Line, QgsSymbolV2::Marker, mAttrName, mAttrNum, mRotationFieldIdx, mSizeScaleFieldIdx, mTempSymbols, QgsDebugMsg, QgsMarkerSymbolV2::setAngle(), QgsMarkerSymbolV2::setSize(), QgsLineSymbolV2::setWidth(), symbolForValue(), and QgsSymbolV2::type().

QgsSymbolV2 * QgsCategorizedSymbolRendererV2::symbolForValue ( QVariant value )

protected

Definition at line 112 of file qgscategorizedsymbolrendererv2.cpp.

References mSymbolHash, and QgsDebugMsg.

Referenced by symbolForFeature().

QgsSymbolV2List QgsCategorizedSymbolRendererV2::symbols ( )

virtual

for symbol levels

Implements QgsFeatureRendererV2.

Definition at line 316 of file qgscategorizedsymbolrendererv2.cpp.

References mCategories.

Referenced by save().

bool QgsCategorizedSymbolRendererV2::updateCategoryLabel	(	int	catIndex,
		QString	label
	)

Definition at line 206 of file qgscategorizedsymbolrendererv2.cpp.

References mCategories.

bool QgsCategorizedSymbolRendererV2::updateCategorySymbol	(	int	catIndex,
		QgsSymbolV2 *	symbol
	)

Definition at line 198 of file qgscategorizedsymbolrendererv2.cpp.

References mCategories.

bool QgsCategorizedSymbolRendererV2::updateCategoryValue	(	int	catIndex,
		const QVariant &	value
	)

Definition at line 190 of file qgscategorizedsymbolrendererv2.cpp.

References mCategories.

QList< QString > QgsCategorizedSymbolRendererV2::usedAttributes ( )

virtual

Implements QgsFeatureRendererV2.

Definition at line 284 of file qgscategorizedsymbolrendererv2.cpp.

References mAttrName, mRotationField, and mSizeScaleField.

Member Data Documentation

QString QgsCategorizedSymbolRendererV2::mAttrName

protected

Definition at line 111 of file qgscategorizedsymbolrendererv2.h.

Referenced by clone(), dump(), save(), startRender(), symbolForFeature(), and usedAttributes().

int QgsCategorizedSymbolRendererV2::mAttrNum

protected

attribute index (derived from attribute name in startRender)

Definition at line 119 of file qgscategorizedsymbolrendererv2.h.

Referenced by startRender(), and symbolForFeature().

QgsCategoryList QgsCategorizedSymbolRendererV2::mCategories

protected

Definition at line 112 of file qgscategorizedsymbolrendererv2.h.

Referenced by addCategory(), categoryIndexForValue(), clone(), deleteAllCategories(), deleteCategory(), dump(), legendSymbolItems(), QgsCategorizedSymbolRendererV2(), rebuildHash(), save(), startRender(), stopRender(), symbols(), updateCategoryLabel(), updateCategorySymbol(), updateCategoryValue(), and ~QgsCategorizedSymbolRendererV2().

QString QgsCategorizedSymbolRendererV2::mRotationField

protected

Definition at line 115 of file qgscategorizedsymbolrendererv2.h.

Referenced by save(), startRender(), and usedAttributes().

int QgsCategorizedSymbolRendererV2::mRotationFieldIdx

protected

Definition at line 120 of file qgscategorizedsymbolrendererv2.h.

Referenced by startRender(), and symbolForFeature().

QString QgsCategorizedSymbolRendererV2::mSizeScaleField

protected

Definition at line 116 of file qgscategorizedsymbolrendererv2.h.

Referenced by save(), startRender(), and usedAttributes().

int QgsCategorizedSymbolRendererV2::mSizeScaleFieldIdx

protected

Definition at line 120 of file qgscategorizedsymbolrendererv2.h.

Referenced by startRender(), and symbolForFeature().

QgsVectorColorRampV2* QgsCategorizedSymbolRendererV2::mSourceColorRamp

protected

Definition at line 114 of file qgscategorizedsymbolrendererv2.h.

Referenced by clone(), save(), setSourceColorRamp(), sourceColorRamp(), and ~QgsCategorizedSymbolRendererV2().

QgsSymbolV2* QgsCategorizedSymbolRendererV2::mSourceSymbol

protected

Definition at line 113 of file qgscategorizedsymbolrendererv2.h.

Referenced by clone(), save(), setSourceSymbol(), sourceSymbol(), and ~QgsCategorizedSymbolRendererV2().

QHash<QString, QgsSymbolV2*> QgsCategorizedSymbolRendererV2::mSymbolHash

protected

hashtable for faster access to symbols

Definition at line 123 of file qgscategorizedsymbolrendererv2.h.

Referenced by rebuildHash(), and symbolForValue().

QHash<QString, QgsSymbolV2*> QgsCategorizedSymbolRendererV2::mTempSymbols

protected

temporary symbols, used for data-defined rotation and scaling

Definition at line 126 of file qgscategorizedsymbolrendererv2.h.

Referenced by startRender(), stopRender(), and symbolForFeature().

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

/build/buildd/qgis-1.7.4+1.7.5~20120320/src/core/symbology-ng/qgscategorizedsymbolrendererv2.h
/build/buildd/qgis-1.7.4+1.7.5~20120320/src/core/symbology-ng/qgscategorizedsymbolrendererv2.cpp

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation