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Plugin layers: added support for legend symbology items

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This commit is contained in:
Martin Dobias 2013-10-29 10:55:02 +07:00
parent 1ef7553d8d
commit a7409b7405
4 changed files with 28 additions and 0 deletions
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5
python/core/qgspluginlayer.sip
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@ -12,4 +12,9 @@ class QgsPluginLayer : QgsMapLayer
QString pluginLayerType();
void setExtent( const QgsRectangle &extent );
//! return a list of symbology items for the legend
//! (defult implementation returns nothing)
//! @note Added in v2.1
virtual QgsLegendSymbologyList legendSymbologyItems( const QSize& iconSize );
};

10
src/app/legend/qgslegendlayer.cpp
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@ -22,6 +22,7 @@
#include "qgsfield.h"
#include "qgsmapcanvasmap.h"
#include "qgsmaplayerregistry.h"
#include "qgspluginlayer.h"
#include "qgsrasterlayer.h"
#include "qgsvectorlayer.h"
#include "qgsvectordataprovider.h"
@ -142,6 +143,15 @@ void QgsLegendLayer::refreshSymbology( const QString& key )
QgsRasterLayer* rlayer = qobject_cast<QgsRasterLayer *>( theMapLayer );
rasterLayerSymbology( rlayer ); // get and change symbology
}
else if ( theMapLayer->type() == QgsMapLayer::PluginLayer )
{
QgsPluginLayer* player = qobject_cast<QgsPluginLayer *>( theMapLayer );
QSize iconSize( 16, 16 );
SymbologyList itemList = player->legendSymbologyItems( iconSize );
changeSymbologySettings( theMapLayer, itemList );
}
updateIcon();
}

6
src/core/qgspluginlayer.cpp
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@ -28,3 +28,9 @@ void QgsPluginLayer::setExtent( const QgsRectangle &extent )
{
mExtent = extent;
}
QgsLegendSymbologyList QgsPluginLayer::legendSymbologyItems( const QSize& iconSize )
{
Q_UNUSED( iconSize );
return QgsLegendSymbologyList();
}

7
src/core/qgspluginlayer.h
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@ -17,6 +17,8 @@
#include "qgsmaplayer.h"
typedef QList< QPair<QString, QPixmap> > QgsLegendSymbologyList;
/** \ingroup core
Base class for plugin layers. These can be implemented by plugins
and registered in QgsPluginLayerRegistry.
@ -39,6 +41,11 @@ class CORE_EXPORT QgsPluginLayer : public QgsMapLayer
void setExtent( const QgsRectangle &extent );
//! return a list of symbology items for the legend
//! (defult implementation returns nothing)
//! @note Added in v2.1
virtual QgsLegendSymbologyList legendSymbologyItems( const QSize& iconSize );
protected:
QString mPluginLayerType;
};