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QGIS API Documentation
3.4.15-Madeira (e83d02e274)
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QGIS API Documentation
3.4.15-Madeira (e83d02e274)
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Implementation of legend node interface for displaying arbitrary label with icon. More...
#include <qgslayertreemodellegendnode.h>
Public Member Functions | |
| QgsSimpleLegendNode (QgsLayerTreeLayer *nodeLayer, const QString &label, const QIcon &icon=QIcon(), QObject *parent=nullptr, const QString &key=QString()) | |
| Constructor for QgsSimpleLegendNode. More... | |
| QVariant | data (int role) const override |
| Returns data associated with the item. Must be implemented in derived class. More... | |
 Public Member Functions inherited from QgsLayerTreeModelLegendNode | |
| virtual ItemMetrics | draw (const QgsLegendSettings &settings, ItemContext *ctx) |
| Entry point called from QgsLegendRenderer to do the rendering. More... | |
| virtual QSizeF | drawSymbol (const QgsLegendSettings &settings, ItemContext *ctx, double itemHeight) const |
| Draws symbol on the left side of the item. More... | |
| virtual QSizeF | drawSymbolText (const QgsLegendSettings &settings, ItemContext *ctx, QSizeF symbolSize) const |
| Draws label on the right side of the item. More... | |
| virtual Qt::ItemFlags | flags () const |
| Returns item flags associated with the item. Default implementation returns Qt::ItemIsEnabled. More... | |
| virtual void | invalidateMapBasedData () |
| Notification from model that information from associated map view has changed. More... | |
| virtual bool | isEmbeddedInParent () const |
| virtual bool | isScaleOK (double scale) const |
| QgsLayerTreeLayer * | layerNode () const |
| Returns pointer to the parent layer node. More... | |
| QgsLayerTreeModel * | model () const |
| Returns pointer to model owning this legend node. More... | |
| virtual bool | setData (const QVariant &value, int role) |
| Sets some data associated with the item. Default implementation does nothing and returns false. More... | |
| virtual void | setEmbeddedInParent (bool embedded) |
| virtual void | setUserLabel (const QString &userLabel) |
| virtual QString | userLabel () const |
Additional Inherited Members | |
| Public Types inherited from QgsLayerTreeModelLegendNode | |
| enum | LegendNodeRoles { RuleKeyRole = Qt::UserRole, ParentRuleKeyRole } |
| Signals inherited from QgsLayerTreeModelLegendNode | |
| void | dataChanged () |
| Emitted on internal data change so the layer tree model can forward the signal to views. More... | |
| Protected Member Functions inherited from QgsLayerTreeModelLegendNode | |
| QgsLayerTreeModelLegendNode (QgsLayerTreeLayer *nodeL, QObject *parent=nullptr) | |
| Construct the node with pointer to its parent layer node. More... | |
| QgsRenderContext * | createTemporaryRenderContext () const |
| Returns a temporary context or null if legendMapViewData are not valid. More... | |
| Protected Attributes inherited from QgsLayerTreeModelLegendNode | |
| bool | mEmbeddedInParent |
| QgsLayerTreeLayer * | mLayerNode = nullptr |
| QString | mUserLabel |
Implementation of legend node interface for displaying arbitrary label with icon.
Definition at line 295 of file qgslayertreemodellegendnode.h.
| QgsSimpleLegendNode::QgsSimpleLegendNode | ( | QgsLayerTreeLayer * | nodeLayer, |
| const QString & | label, | ||
| const QIcon & | icon = QIcon(), |
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| QObject * | parent = nullptr, |
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| const QString & | key = QString() |
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| ) |
Constructor for QgsSimpleLegendNode.
| nodeLayer | layer node |
| label | label |
| icon | icon |
| parent | attach a parent QObject to the legend node. |
| key | the rule key |
Definition at line 517 of file qgslayertreemodellegendnode.cpp.
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overridevirtual |
Returns data associated with the item. Must be implemented in derived class.
Implements QgsLayerTreeModelLegendNode.
Definition at line 525 of file qgslayertreemodellegendnode.cpp.
1.8.11
