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This allows symbol widgets to fetch properties from the main map canvas, for instance fetching the current scale from the map.
47 lines
1.7 KiB
Plaintext
47 lines
1.7 KiB
Plaintext
class QgsLayerPropertiesWidget : QWidget
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{
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%TypeHeaderCode
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#include <qgslayerpropertieswidget.h>
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%End
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public:
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QgsLayerPropertiesWidget( QgsSymbolLayerV2* layer, const QgsSymbolV2* symbol, const QgsVectorLayer* vl, QWidget* parent /TransferThis/ = NULL );
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/** Returns the expression context used for the widget, if set. This expression context is used for
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* evaluating data defined symbol properties and for populating based expression widgets in
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* the properties widget.
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* @note added in QGIS 2.12
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* @see setExpressionContext()
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*/
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QgsExpressionContext* expressionContext() const;
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/** Sets the map canvas associated with the widget. This allows the widget to retrieve the current
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* map scale and other properties from the canvas.
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* @param canvas map canvas
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* @note added in QGIS 2.12
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*/
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virtual void setMapCanvas( QgsMapCanvas* canvas );
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public slots:
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void layerTypeChanged();
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void emitSignalChanged();
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/** Sets the optional expression context used for the widget. This expression context is used for
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* evaluating data defined symbol properties and for populating based expression widgets in
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* the properties widget.
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* @param context expression context pointer. Ownership is not transferred and the object must
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* be kept alive for the lifetime of the properties widget.
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* @note added in QGIS 2.12
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* @see expressionContext()
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*/
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void setExpressionContext( QgsExpressionContext* context );
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signals:
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void changed();
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void changeLayer( QgsSymbolLayerV2* );
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protected:
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void populateLayerTypes();
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void updateSymbolLayerWidget( QgsSymbolLayerV2* layer );
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};
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