Quantum GIS API Documentation  1.7.5-Wroclaw
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Public Member Functions | Static Public Member Functions | Protected Member Functions | Protected Attributes
QgsCategorizedSymbolRendererV2 Class Reference

#include <qgscategorizedsymbolrendererv2.h>

Inheritance diagram for QgsCategorizedSymbolRendererV2:
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Collaboration diagram for QgsCategorizedSymbolRendererV2:
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List of all members.

Public Member Functions

 QgsCategorizedSymbolRendererV2 (QString attrName=QString(), QgsCategoryList categories=QgsCategoryList())
virtual ~QgsCategorizedSymbolRendererV2 ()
virtual QgsSymbolV2symbolForFeature (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 QgsFeatureRendererV2clone ()
virtual QgsSymbolV2List symbols ()
 for symbol levels
const QgsCategoryListcategories ()
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
QgsSymbolV2sourceSymbol ()
void setSourceSymbol (QgsSymbolV2 *sym)
QgsVectorColorRampV2sourceColorRamp ()
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 QgsFeatureRendererV2create (QDomElement &element)
 create renderer from XML element
- Static Public Member Functions inherited from QgsFeatureRendererV2
static QgsFeatureRendererV2defaultRenderer (QGis::GeometryType geomType)
 return a new renderer - used by default in vector layers
static QgsFeatureRendererV2load (QDomElement &symbologyElem)
 create a renderer from XML element

Protected Member Functions

void rebuildHash ()
QgsSymbolV2symbolForValue (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
QgsSymbolV2mSourceSymbol
QgsVectorColorRampV2mSourceColorRamp
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)
const QgsCategoryList& QgsCategorizedSymbolRendererV2::categories ( )
inline
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
QgsFeatureRendererV2 * QgsCategorizedSymbolRendererV2::clone ( )
virtual
QgsFeatureRendererV2 * QgsCategorizedSymbolRendererV2::create ( QDomElement &  element)
static
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
void QgsCategorizedSymbolRendererV2::rebuildHash ( )
protected
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
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
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
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
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
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
QgsSymbolV2* QgsCategorizedSymbolRendererV2::mSourceSymbol
protected
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: