QGIS API Documentation
2.14.0-Essen
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#include <qgssymbolv2.h>
Public Member Functions | |
QgsSymbolV2RenderContext (QgsRenderContext &c, QgsSymbolV2::OutputUnit u, qreal alpha=1.0, bool selected=false, int renderHints=0, const QgsFeature *f=nullptr, const QgsFields *fields=nullptr, const QgsMapUnitScale &mapUnitScale=QgsMapUnitScale()) | |
~QgsSymbolV2RenderContext () | |
qreal | alpha () const |
Get alpha transparency 1 for opaque, 0 for invisible. More... | |
QgsExpressionContextScope * | expressionContextScope () |
This scope is always available when a symbol of this type is being rendered. More... | |
const QgsFeature * | feature () const |
Current feature being rendered - may be null. More... | |
const QgsFields * | fields () const |
Fields of the layer. More... | |
QgsMapUnitScale | mapUnitScale () const |
QgsSymbolV2RenderContext & | operator= (const QgsSymbolV2RenderContext &) |
double | outputLineWidth (double width) const |
double | outputPixelSize (double size) const |
QgsSymbolV2::OutputUnit | outputUnit () const |
QgsRenderContext & | renderContext () |
const QgsRenderContext & | renderContext () const |
int | renderHints () const |
bool | selected () const |
void | setAlpha (qreal alpha) |
Set alpha transparency 1 for opaque, 0 for invisible. More... | |
void | setExpressionContextScope (QgsExpressionContextScope *contextScope) |
Set an expression scope for this symbol. More... | |
void | setFeature (const QgsFeature *f) |
void | setMapUnitScale (const QgsMapUnitScale &scale) |
void | setOriginalValueVariable (const QVariant &value) |
Sets the original value variable value for data defined symbology. More... | |
void | setOutputUnit (QgsSymbolV2::OutputUnit u) |
void | setRenderHints (int hints) |
void | setSelected (bool selected) |
Definition at line 339 of file qgssymbolv2.h.
QgsSymbolV2RenderContext::QgsSymbolV2RenderContext | ( | QgsRenderContext & | c, |
QgsSymbolV2::OutputUnit | u, | ||
qreal | alpha = 1.0 , |
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bool | selected = false , |
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int | renderHints = 0 , |
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const QgsFeature * | f = nullptr , |
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const QgsFields * | fields = nullptr , |
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const QgsMapUnitScale & | mapUnitScale = QgsMapUnitScale() |
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Definition at line 948 of file qgssymbolv2.cpp.
QgsSymbolV2RenderContext::~QgsSymbolV2RenderContext | ( | ) |
Definition at line 961 of file qgssymbolv2.cpp.
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Get alpha transparency 1 for opaque, 0 for invisible.
Definition at line 362 of file qgssymbolv2.h.
QgsExpressionContextScope * QgsSymbolV2RenderContext::expressionContextScope | ( | ) |
This scope is always available when a symbol of this type is being rendered.
Definition at line 991 of file qgssymbolv2.cpp.
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Current feature being rendered - may be null.
Definition at line 374 of file qgssymbolv2.h.
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Fields of the layer.
Currently only available in startRender() calls to allow symbols with data-defined properties prepare the expressions (other times fields() returns null)
Definition at line 380 of file qgssymbolv2.h.
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Definition at line 358 of file qgssymbolv2.h.
QgsSymbolV2RenderContext & QgsSymbolV2RenderContext::operator= | ( | const QgsSymbolV2RenderContext & | ) |
Definition at line 981 of file qgssymbolv2.cpp.
double QgsSymbolV2RenderContext::outputLineWidth | ( | double | width | ) | const |
Definition at line 971 of file qgssymbolv2.cpp.
double QgsSymbolV2RenderContext::outputPixelSize | ( | double | size | ) | const |
Definition at line 976 of file qgssymbolv2.cpp.
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Definition at line 355 of file qgssymbolv2.h.
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Definition at line 345 of file qgssymbolv2.h.
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Definition at line 346 of file qgssymbolv2.h.
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Definition at line 369 of file qgssymbolv2.h.
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Definition at line 366 of file qgssymbolv2.h.
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Set alpha transparency 1 for opaque, 0 for invisible.
Definition at line 364 of file qgssymbolv2.h.
void QgsSymbolV2RenderContext::setExpressionContextScope | ( | QgsExpressionContextScope * | contextScope | ) |
Set an expression scope for this symbol.
Will take ownership.
contextScope | An expression scope for details about this symbol |
Definition at line 996 of file qgssymbolv2.cpp.
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Definition at line 372 of file qgssymbolv2.h.
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Definition at line 359 of file qgssymbolv2.h.
void QgsSymbolV2RenderContext::setOriginalValueVariable | ( | const QVariant & | value | ) |
Sets the original value variable value for data defined symbology.
value | value for original value variable. This usually represents the symbol property value before any data defined overrides have been applied. |
Definition at line 966 of file qgssymbolv2.cpp.
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Definition at line 356 of file qgssymbolv2.h.
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Definition at line 370 of file qgssymbolv2.h.
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Definition at line 367 of file qgssymbolv2.h.