[layertree] Underline current layer

Author: wonder-sk

src/gui/layertree/qgslayertreemodel.cpp

@@ -32,6 +32,7 @@ QgsLayerTreeModel::QgsLayerTreeModel( QgsLayerTreeGroup* rootNode, QObject *pare
     : QAbstractItemModel( parent )
     , mRootNode( rootNode )
     , mFlags( ShowSymbology )
+    , mCurrentNode( 0 )
 {
   Q_ASSERT( mRootNode );
 
@@ -236,6 +237,8 @@ QVariant QgsLayerTreeModel::data( const QModelIndex &index, int role ) const
       f.setItalic( true );
     if ( QgsLayerTree::isLayer( node ) )
       f.setBold( true );
+    if ( node == mCurrentNode )
+      f.setUnderline( true );
     return f;
   }
   else if ( role == Qt::ToolTipRole )
@@ -382,6 +385,23 @@ void QgsLayerTreeModel::refreshLayerSymbology( QgsLayerTreeLayer* nodeLayer )
   addSymbologyToLayer( nodeLayer );
 }
 
+void QgsLayerTreeModel::setCurrentNode( QgsLayerTreeNode* currentNode )
+{
+  if ( mCurrentNode )
+  {
+    QModelIndex idx = node2index( mCurrentNode );
+    emit dataChanged( idx, idx );
+  }
+
+  mCurrentNode = currentNode;
+
+  if ( mCurrentNode )
+  {
+    QModelIndex idx = node2index( mCurrentNode );
+    emit dataChanged( idx, idx );
+  }
+}
+
 void QgsLayerTreeModel::nodeWillAddChildren( QgsLayerTreeNode* node, int indexFrom, int indexTo )
 {
   Q_ASSERT( node );

src/gui/layertree/qgslayertreemodel.h

@@ -92,6 +92,9 @@ class GUI_EXPORT QgsLayerTreeModel : public QAbstractItemModel
 
     void refreshLayerSymbology( QgsLayerTreeLayer* nodeLayer );
 
+    QgsLayerTreeNode* currentNode() const { return mCurrentNode; }
+    void setCurrentNode( QgsLayerTreeNode* currentNode );
+
   signals:
 
   protected slots:
@@ -122,6 +125,8 @@ class GUI_EXPORT QgsLayerTreeModel : public QAbstractItemModel
     Flags mFlags;
 
     QMap<QgsLayerTreeLayer*, QList<QgsLayerTreeModelSymbologyNode*> > mSymbologyNodes;
+
+    QgsLayerTreeNode* mCurrentNode;
 };
 
 Q_DECLARE_OPERATORS_FOR_FLAGS( QgsLayerTreeModel::Flags )

src/gui/layertree/qgslayertreeview.cpp

@@ -142,6 +142,11 @@ void QgsLayerTreeView::onCurrentChanged( QModelIndex current, QModelIndex previo
   if ( layerPrevious == layerCurrent )
     return;
 
+  if ( layerCurrent )
+    layerTreeModel()->setCurrentNode( layerTreeModel()->rootGroup()->findLayer( layerCurrent->id() ) );
+  else
+    layerTreeModel()->setCurrentNode( 0 );
+
   emit currentLayerChanged( layerCurrent );
 }