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QgsGraduatedSymbolRendererV2 Class Reference

#include <qgsgraduatedsymbolrendererv2.h>

Inheritance diagram for QgsGraduatedSymbolRendererV2:
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Collaboration diagram for QgsGraduatedSymbolRendererV2:
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Public Types

enum  Mode {
  EqualInterval, Quantile, Jenks, StdDev,
  Pretty, Custom
}
 

Public Member Functions

 QgsGraduatedSymbolRendererV2 (QString attrName=QString(), QgsRangeList ranges=QgsRangeList())
 
virtual ~QgsGraduatedSymbolRendererV2 ()
 
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 More...
 
virtual QgsFeatureRendererV2clone ()
 
virtual QgsSymbolV2List symbols ()
 for symbol levels More...
 
QString classAttribute () const
 
void setClassAttribute (QString attr)
 
const QgsRangeListranges ()
 
bool updateRangeSymbol (int rangeIndex, QgsSymbolV2 *symbol)
 
bool updateRangeLabel (int rangeIndex, QString label)
 
bool updateRangeUpperValue (int rangeIndex, double value)
 
bool updateRangeLowerValue (int rangeIndex, double value)
 
void addClass (QgsSymbolV2 *symbol)
 
void deleteClass (int idx)
 
Mode mode () const
 
void setMode (Mode mode)
 
virtual QDomElement save (QDomDocument &doc)
 store renderer info to XML element More...
 
virtual QgsLegendSymbologyList legendSymbologyItems (QSize iconSize)
 return a list of symbology items for the legend More...
 
virtual QgsLegendSymbolList legendSymbolItems ()
 return a list of item text / symbol More...
 
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 More...
 

Static Public Member Functions

static
QgsGraduatedSymbolRendererV2
createRenderer (QgsVectorLayer *vlayer, QString attrName, int classes, Mode mode, QgsSymbolV2 *symbol, QgsVectorColorRampV2 *ramp)
 
static QgsFeatureRendererV2create (QDomElement &element)
 create renderer from XML element More...
 
- Static Public Member Functions inherited from QgsFeatureRendererV2
static QgsFeatureRendererV2defaultRenderer (QGis::GeometryType geomType)
 return a new renderer - used by default in vector layers More...
 
static QgsFeatureRendererV2load (QDomElement &symbologyElem)
 create a renderer from XML element More...
 

Protected Member Functions

QgsSymbolV2symbolForValue (double value)
 
- Protected Member Functions inherited from QgsFeatureRendererV2
 QgsFeatureRendererV2 (QString type)
 
void renderVertexMarker (QPointF &pt, QgsRenderContext &context)
 render editing vertex marker at specified point More...
 
void renderVertexMarkerPolyline (QPolygonF &pts, QgsRenderContext &context)
 render editing vertex marker for a polyline More...
 
void renderVertexMarkerPolygon (QPolygonF &pts, QList< QPolygonF > *rings, QgsRenderContext &context)
 render editing vertex marker for a polygon More...
 

Protected Attributes

QString mAttrName
 
QgsRangeList mRanges
 
Mode mMode
 
QgsSymbolV2mSourceSymbol
 
QgsVectorColorRampV2mSourceColorRamp
 
QString mRotationField
 
QString mSizeScaleField
 
int mAttrNum
 attribute index (derived from attribute name in startRender) More...
 
int mRotationFieldIdx
 
int mSizeScaleFieldIdx
 
QMap< QgsSymbolV2
*, QgsSymbolV2 * > 
mTempSymbols
 temporary symbols, used for data-defined rotation and scaling More...
 
- Protected Attributes inherited from QgsFeatureRendererV2
QString mType
 
bool mUsingSymbolLevels
 
bool mUsingFirstRule
 
int mCurrentVertexMarkerType
 The current type of editing marker. More...
 
int mCurrentVertexMarkerSize
 The current size of editing marker. More...
 

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 39 of file qgsgraduatedsymbolrendererv2.h.

Member Enumeration Documentation

Enumerator
EqualInterval 
Quantile 
Jenks 
StdDev 
Pretty 
Custom 

Definition at line 73 of file qgsgraduatedsymbolrendererv2.h.

Constructor & Destructor Documentation

QgsGraduatedSymbolRendererV2::QgsGraduatedSymbolRendererV2 ( QString  attrName = QString(),
QgsRangeList  ranges = QgsRangeList() 
)

Definition at line 103 of file qgsgraduatedsymbolrendererv2.cpp.

Referenced by clone(), create(), and createRenderer().

QgsGraduatedSymbolRendererV2::~QgsGraduatedSymbolRendererV2 ( )
virtual

Definition at line 116 of file qgsgraduatedsymbolrendererv2.cpp.

References mRanges, mSourceColorRamp, and mSourceSymbol.

Member Function Documentation

void QgsGraduatedSymbolRendererV2::addClass ( QgsSymbolV2 symbol)

Definition at line 996 of file qgsgraduatedsymbolrendererv2.cpp.

References QgsSymbolV2::clone(), and mRanges.

QString QgsGraduatedSymbolRendererV2::classAttribute ( ) const
inline
QgsFeatureRendererV2 * QgsGraduatedSymbolRendererV2::clone ( )
virtual
QgsFeatureRendererV2 * QgsGraduatedSymbolRendererV2::create ( QDomElement &  element)
static
QgsGraduatedSymbolRendererV2 * QgsGraduatedSymbolRendererV2::createRenderer ( QgsVectorLayer vlayer,
QString  attrName,
int  classes,
Mode  mode,
QgsSymbolV2 symbol,
QgsVectorColorRampV2 ramp 
)
static
void QgsGraduatedSymbolRendererV2::deleteClass ( int  idx)

Definition at line 1004 of file qgsgraduatedsymbolrendererv2.cpp.

References mRanges.

QString QgsGraduatedSymbolRendererV2::dump ( )
virtual

for debugging

Reimplemented from QgsFeatureRendererV2.

Definition at line 268 of file qgsgraduatedsymbolrendererv2.cpp.

References mAttrName, and mRanges.

QgsLegendSymbolList QgsGraduatedSymbolRendererV2::legendSymbolItems ( )
virtual

return a list of item text / symbol

Note
: this method was added in version 1.5

Reimplemented from QgsFeatureRendererV2.

Definition at line 957 of file qgsgraduatedsymbolrendererv2.cpp.

References classAttribute(), and mRanges.

QgsLegendSymbologyList QgsGraduatedSymbolRendererV2::legendSymbologyItems ( QSize  iconSize)
virtual

return a list of symbology items for the legend

Reimplemented from QgsFeatureRendererV2.

Definition at line 936 of file qgsgraduatedsymbolrendererv2.cpp.

References classAttribute(), QgsRendererRangeV2::label(), ranges(), QgsRendererRangeV2::symbol(), and QgsSymbolLayerV2Utils::symbolPreviewPixmap().

Mode QgsGraduatedSymbolRendererV2::mode ( ) const
inline
const QgsRangeList& QgsGraduatedSymbolRendererV2::ranges ( )
inline
QString QgsGraduatedSymbolRendererV2::rotationField ( ) const
inline
Note
added in 1.6

Definition at line 116 of file qgsgraduatedsymbolrendererv2.h.

Referenced by clone().

QDomElement QgsGraduatedSymbolRendererV2::save ( QDomDocument &  doc)
virtual
void QgsGraduatedSymbolRendererV2::setClassAttribute ( QString  attr)
inline

Definition at line 61 of file qgsgraduatedsymbolrendererv2.h.

void QgsGraduatedSymbolRendererV2::setMode ( Mode  mode)
inline
void QgsGraduatedSymbolRendererV2::setRotationField ( QString  fieldName)
inline
Note
added in 1.6

Definition at line 114 of file qgsgraduatedsymbolrendererv2.h.

Referenced by clone(), and create().

void QgsGraduatedSymbolRendererV2::setSizeScaleField ( QString  fieldName)
inline
Note
added in 1.6

Definition at line 119 of file qgsgraduatedsymbolrendererv2.h.

Referenced by clone(), and create().

void QgsGraduatedSymbolRendererV2::setSourceColorRamp ( QgsVectorColorRampV2 ramp)

Definition at line 990 of file qgsgraduatedsymbolrendererv2.cpp.

References mSourceColorRamp.

Referenced by clone(), create(), and createRenderer().

void QgsGraduatedSymbolRendererV2::setSourceSymbol ( QgsSymbolV2 sym)

Definition at line 980 of file qgsgraduatedsymbolrendererv2.cpp.

References mSourceSymbol.

Referenced by clone(), create(), and createRenderer().

QString QgsGraduatedSymbolRendererV2::sizeScaleField ( ) const
inline
Note
added in 1.6

Definition at line 121 of file qgsgraduatedsymbolrendererv2.h.

Referenced by clone().

QgsVectorColorRampV2 * QgsGraduatedSymbolRendererV2::sourceColorRamp ( )

Definition at line 986 of file qgsgraduatedsymbolrendererv2.cpp.

References mSourceColorRamp.

QgsSymbolV2 * QgsGraduatedSymbolRendererV2::sourceSymbol ( )

Definition at line 976 of file qgsgraduatedsymbolrendererv2.cpp.

References mSourceSymbol.

void QgsGraduatedSymbolRendererV2::startRender ( QgsRenderContext context,
const QgsVectorLayer vlayer 
)
virtual
void QgsGraduatedSymbolRendererV2::stopRender ( QgsRenderContext context)
virtual

Implements QgsFeatureRendererV2.

Definition at line 205 of file qgsgraduatedsymbolrendererv2.cpp.

References mRanges, and mTempSymbols.

QgsSymbolV2 * QgsGraduatedSymbolRendererV2::symbolForFeature ( QgsFeature feature)
virtual
QgsSymbolV2 * QgsGraduatedSymbolRendererV2::symbolForValue ( double  value)
protected

Definition at line 123 of file qgsgraduatedsymbolrendererv2.cpp.

References mRanges.

Referenced by symbolForFeature().

QgsSymbolV2List QgsGraduatedSymbolRendererV2::symbols ( )
virtual

for symbol levels

Implements QgsFeatureRendererV2.

Definition at line 290 of file qgsgraduatedsymbolrendererv2.cpp.

References mRanges.

Referenced by save().

bool QgsGraduatedSymbolRendererV2::updateRangeLabel ( int  rangeIndex,
QString  label 
)

Definition at line 244 of file qgsgraduatedsymbolrendererv2.cpp.

References mRanges.

bool QgsGraduatedSymbolRendererV2::updateRangeLowerValue ( int  rangeIndex,
double  value 
)

Definition at line 260 of file qgsgraduatedsymbolrendererv2.cpp.

References mRanges.

bool QgsGraduatedSymbolRendererV2::updateRangeSymbol ( int  rangeIndex,
QgsSymbolV2 symbol 
)

Definition at line 236 of file qgsgraduatedsymbolrendererv2.cpp.

References mRanges.

bool QgsGraduatedSymbolRendererV2::updateRangeUpperValue ( int  rangeIndex,
double  value 
)

Definition at line 252 of file qgsgraduatedsymbolrendererv2.cpp.

References mRanges.

QList< QString > QgsGraduatedSymbolRendererV2::usedAttributes ( )
virtual

Implements QgsFeatureRendererV2.

Definition at line 225 of file qgsgraduatedsymbolrendererv2.cpp.

References mAttrName, mRotationField, and mSizeScaleField.

Member Data Documentation

QString QgsGraduatedSymbolRendererV2::mAttrName
protected
int QgsGraduatedSymbolRendererV2::mAttrNum
protected

attribute index (derived from attribute name in startRender)

Definition at line 133 of file qgsgraduatedsymbolrendererv2.h.

Referenced by startRender(), and symbolForFeature().

Mode QgsGraduatedSymbolRendererV2::mMode
protected

Definition at line 126 of file qgsgraduatedsymbolrendererv2.h.

Referenced by clone(), and save().

QgsRangeList QgsGraduatedSymbolRendererV2::mRanges
protected
QString QgsGraduatedSymbolRendererV2::mRotationField
protected

Definition at line 129 of file qgsgraduatedsymbolrendererv2.h.

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

int QgsGraduatedSymbolRendererV2::mRotationFieldIdx
protected

Definition at line 134 of file qgsgraduatedsymbolrendererv2.h.

Referenced by startRender(), and symbolForFeature().

QString QgsGraduatedSymbolRendererV2::mSizeScaleField
protected

Definition at line 130 of file qgsgraduatedsymbolrendererv2.h.

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

int QgsGraduatedSymbolRendererV2::mSizeScaleFieldIdx
protected

Definition at line 134 of file qgsgraduatedsymbolrendererv2.h.

Referenced by startRender(), and symbolForFeature().

QgsVectorColorRampV2* QgsGraduatedSymbolRendererV2::mSourceColorRamp
protected
QgsSymbolV2* QgsGraduatedSymbolRendererV2::mSourceSymbol
protected
QMap<QgsSymbolV2*, QgsSymbolV2*> QgsGraduatedSymbolRendererV2::mTempSymbols
protected

temporary symbols, used for data-defined rotation and scaling

Definition at line 138 of file qgsgraduatedsymbolrendererv2.h.

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


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