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Update QgsLegend::selectedLayers() and add to QgsLegendInterface

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- Add option to return selected layers in drawing order
This commit is contained in:
Larry Shaffer 2012-11-28 10:17:36 -07:00
parent a4484b217e
commit 8260eab94b
6 changed files with 41 additions and 11 deletions
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7
python/gui/qgslegendinterface.sip
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@ -22,7 +22,12 @@ class QgsLegendInterface : QObject
//! Return the relationship between groups and layers in the legend
virtual QList< QPair< QString, QList<QString> > > groupLayerRelationship();
//! Return all layers in the project in legend order
//! Returns the currently selected layers of QgsLegendLayers.
//! @param inDrawOrder return layers in drawing order (added in 1.9)
//! @returns list of layers, else an empty list
virtual QList<QgsMapLayer *> selectedLayers( bool inDrawOrder = false ) const = 0;
//! Return all layers in the project in drawing order
//! @note added in 1.5
virtual QList< QgsMapLayer * > layers() const = 0;

5
src/app/legend/qgsapplegendinterface.cpp
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@ -166,6 +166,11 @@ bool QgsAppLegendInterface::isLayerVisible( QgsMapLayer * ml )
return ( Qt::Checked == mLegend->layerCheckState( ml ) );
}
QList<QgsMapLayer *> QgsAppLegendInterface::selectedLayers( bool inDrawOrder ) const
{
return mLegend->selectedLayers( inDrawOrder );
}
QList< QgsMapLayer * > QgsAppLegendInterface::layers() const
{
return mLegend->layers();

5
src/app/legend/qgsapplegendinterface.h
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@ -46,7 +46,10 @@ class QgsAppLegendInterface : public QgsLegendInterface
//! Return the relationship between groups and layers in the legend
QList< GroupLayerInfo > groupLayerRelationship();
//! Return all layers in the project in legend order
//! Returns the currently selected layers of QgsLegendLayers.
QList<QgsMapLayer *> selectedLayers( bool inDrawOrder = false ) const;
//! Return all layers in the project in drawing order
QList< QgsMapLayer * > layers() const;
//! Check if a group exists

21
src/app/legend/qgslegend.cpp
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@ -1093,15 +1093,26 @@ QgsMapLayer* QgsLegend::currentLayer()
}
}
QList<QgsMapLayer *> QgsLegend::selectedLayers()
QList<QgsMapLayer *> QgsLegend::selectedLayers( bool inDrawOrder )
{
QList<QgsMapLayer *> layers;
foreach ( QTreeWidgetItem * item, selectedItems() )
if ( inDrawOrder )
{
QgsLegendLayer *ll = dynamic_cast<QgsLegendLayer *>( item );
if ( ll )
layers << ll->layer();
foreach ( QgsLegendLayer *ll, legendLayers() )
{
if ( ll->isSelected() )
layers << ll->layer();
}
}
else
{
foreach ( QTreeWidgetItem * item, selectedItems() )
{
QgsLegendLayer *ll = dynamic_cast<QgsLegendLayer *>( item );
if ( ll )
layers << ll->layer();
}
}
return layers;

7
src/app/legend/qgslegend.h
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@ -117,9 +117,10 @@ class QgsLegend : public QTreeWidget
Else, 0 is returned.*/
QgsMapLayer* currentLayer();
/*!Returns the currently selected layer QgsLegendLayers.
Else, an empty list is returned.*/
QList<QgsMapLayer *> selectedLayers();
/** Returns the currently selected layers of QgsLegendLayers.
* @param inDrawOrder return layers in drawing order (added in 1.9)
* @returns list of layers, else an empty list */
QList<QgsMapLayer *> selectedLayers( bool inDrawOrder = false );
/*!Returns all layers loaded in QgsMapCanvas in drawing order
Else, an empty list is returned.*/

7
src/gui/qgslegendinterface.h
View File

@ -54,7 +54,12 @@ class GUI_EXPORT QgsLegendInterface : public QObject
//! Return the relationship between groups and layers in the legend
virtual QList< GroupLayerInfo > groupLayerRelationship() { return QList< GroupLayerInfo >(); }
//! Return all layers in the project in legend order
//! Returns the currently selected layers of QgsLegendLayers.
//! @param inDrawOrder return layers in drawing order (added in 1.9)
//! @returns list of layers, else an empty list
virtual QList<QgsMapLayer *> selectedLayers( bool inDrawOrder = false ) const = 0;
//! Return all layers in the project in drawing order
//! @note added in 1.5
virtual QList< QgsMapLayer * > layers() const = 0;