Quantum GIS API Documentation  1.7.5-Wroclaw
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QgsSymbolV2 Class Referenceabstract

#include <qgssymbolv2.h>

Inheritance diagram for QgsSymbolV2:
Inheritance graph
[legend]

Public Types

enum  OutputUnit { MM, MapUnit }
 
enum  SymbolType { Marker, Line, Fill }
 
enum  RenderHint { DataDefinedSizeScale = 1, DataDefinedRotation = 2 }
 

Public Member Functions

virtual ~QgsSymbolV2 ()
 
SymbolType type () const
 
QgsSymbolLayerV2symbolLayer (int layer)
 
int symbolLayerCount ()
 
bool insertSymbolLayer (int index, QgsSymbolLayerV2 *layer)
 insert symbol layer to specified index More...
 
bool appendSymbolLayer (QgsSymbolLayerV2 *layer)
 append symbol layer at the end of the list More...
 
bool deleteSymbolLayer (int index)
 delete symbol layer at specified index More...
 
QgsSymbolLayerV2takeSymbolLayer (int index)
 remove symbol layer from the list and return pointer to it More...
 
bool changeSymbolLayer (int index, QgsSymbolLayerV2 *layer)
 delete layer at specified index and set a new one More...
 
void startRender (QgsRenderContext &context)
 
void stopRender (QgsRenderContext &context)
 
void setColor (const QColor &color)
 
QColor color ()
 
void drawPreviewIcon (QPainter *painter, QSize size)
 
QImage bigSymbolPreviewImage ()
 
QString dump ()
 
virtual QgsSymbolV2clone () const =0
 
OutputUnit outputUnit () const
 
void setOutputUnit (OutputUnit u)
 
qreal alpha () const
 Get alpha transparency 1 for opaque, 0 for invisible. More...
 
void setAlpha (qreal alpha)
 Set alpha transparency 1 for opaque, 0 for invisible. More...
 
void setRenderHints (int hints)
 
int renderHints ()
 

Static Public Member Functions

static QgsSymbolV2defaultSymbol (QGis::GeometryType geomType)
 return new default symbol for specified geometry type More...
 

Protected Member Functions

 QgsSymbolV2 (SymbolType type, QgsSymbolLayerV2List layers)
 
QgsSymbolLayerV2List cloneLayers () const
 
bool isSymbolLayerCompatible (SymbolType t)
 check whether a symbol layer type can be used within the symbol (marker-marker, line-line, fill-fill/line) More...
 

Protected Attributes

SymbolType mType
 
QgsSymbolLayerV2List mLayers
 
OutputUnit mOutputUnit
 
qreal mAlpha
 Symbol opacity (in the range 0 - 1) More...
 
int mRenderHints
 

Detailed Description

Definition at line 23 of file qgssymbolv2.h.

Member Enumeration Documentation

Enumerator
MM 
MapUnit 

Definition at line 27 of file qgssymbolv2.h.

Note
added in 1.5
Enumerator
DataDefinedSizeScale 
DataDefinedRotation 

Definition at line 41 of file qgssymbolv2.h.

Enumerator
Marker 
Line 
Fill 

Definition at line 33 of file qgssymbolv2.h.

Constructor & Destructor Documentation

QgsSymbolV2::~QgsSymbolV2 ( )
virtual

Definition at line 40 of file qgssymbolv2.cpp.

References mLayers.

QgsSymbolV2::QgsSymbolV2 ( SymbolType  type,
QgsSymbolLayerV2List  layers 
)
protected

Definition at line 20 of file qgssymbolv2.cpp.

References isSymbolLayerCompatible(), mLayers, and type().

Member Function Documentation

qreal QgsSymbolV2::alpha ( ) const
inline

Get alpha transparency 1 for opaque, 0 for invisible.

Definition at line 94 of file qgssymbolv2.h.

Referenced by QgsSymbolLayerV2Utils::saveSymbol().

bool QgsSymbolV2::appendSymbolLayer ( QgsSymbolLayerV2 layer)

append symbol layer at the end of the list

Definition at line 94 of file qgssymbolv2.cpp.

References isSymbolLayerCompatible(), mLayers, and QgsSymbolLayerV2::type().

QImage QgsSymbolV2::bigSymbolPreviewImage ( )
bool QgsSymbolV2::changeSymbolLayer ( int  index,
QgsSymbolLayerV2 layer 
)

delete layer at specified index and set a new one

Definition at line 124 of file qgssymbolv2.cpp.

References isSymbolLayerCompatible(), mLayers, and QgsSymbolLayerV2::type().

virtual QgsSymbolV2* QgsSymbolV2::clone ( ) const
pure virtual
QgsSymbolLayerV2List QgsSymbolV2::cloneLayers ( ) const
protected
QColor QgsSymbolV2::color ( void  )
QgsSymbolV2 * QgsSymbolV2::defaultSymbol ( QGis::GeometryType  geomType)
static

return new default symbol for specified geometry type

Definition at line 47 of file qgssymbolv2.cpp.

References QGis::Line, QGis::Point, QGis::Polygon, QgsDebugMsg, and setColor().

Referenced by QgsFeatureRendererV2::defaultRenderer(), and QgsVectorLayer::drawRendererV2Levels().

bool QgsSymbolV2::deleteSymbolLayer ( int  index)

delete symbol layer at specified index

Definition at line 104 of file qgssymbolv2.cpp.

References mLayers.

void QgsSymbolV2::drawPreviewIcon ( QPainter *  painter,
QSize  size 
)
QString QgsSymbolV2::dump ( )
bool QgsSymbolV2::insertSymbolLayer ( int  index,
QgsSymbolLayerV2 layer 
)

insert symbol layer to specified index

Definition at line 82 of file qgssymbolv2.cpp.

References isSymbolLayerCompatible(), mLayers, and QgsSymbolLayerV2::type().

bool QgsSymbolV2::isSymbolLayerCompatible ( SymbolType  t)
protected

check whether a symbol layer type can be used within the symbol (marker-marker, line-line, fill-fill/line)

Note
added in 1.7

Definition at line 72 of file qgssymbolv2.cpp.

References Fill, Line, and mType.

Referenced by appendSymbolLayer(), changeSymbolLayer(), insertSymbolLayer(), and QgsSymbolV2().

OutputUnit QgsSymbolV2::outputUnit ( ) const
inline
int QgsSymbolV2::renderHints ( )
inline
Note
added in 1.5

Definition at line 101 of file qgssymbolv2.h.

void QgsSymbolV2::setAlpha ( qreal  alpha)
inline
void QgsSymbolV2::setColor ( const QColor &  color)
void QgsSymbolV2::setOutputUnit ( OutputUnit  u)
inline
void QgsSymbolV2::setRenderHints ( int  hints)
inline
void QgsSymbolV2::startRender ( QgsRenderContext context)
void QgsSymbolV2::stopRender ( QgsRenderContext context)
QgsSymbolLayerV2 * QgsSymbolV2::symbolLayer ( int  layer)
int QgsSymbolV2::symbolLayerCount ( )
inline
QgsSymbolLayerV2 * QgsSymbolV2::takeSymbolLayer ( int  index)

remove symbol layer from the list and return pointer to it

Definition at line 115 of file qgssymbolv2.cpp.

References mLayers.

SymbolType QgsSymbolV2::type ( ) const
inline

Member Data Documentation

qreal QgsSymbolV2::mAlpha
protected
QgsSymbolLayerV2List QgsSymbolV2::mLayers
protected
OutputUnit QgsSymbolV2::mOutputUnit
protected
int QgsSymbolV2::mRenderHints
protected
SymbolType QgsSymbolV2::mType
protected

Definition at line 113 of file qgssymbolv2.h.

Referenced by bigSymbolPreviewImage(), drawPreviewIcon(), and isSymbolLayerCompatible().


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