[layertree] minor consolidation of insert/remove functions

Author: wonder-sk

src/core/layertree/qgslayertreegroup.cpp

@@ -72,7 +72,7 @@ void QgsLayerTreeGroup::insertChildNode( int index, QgsLayerTreeNode* node )
 void QgsLayerTreeGroup::insertChildNodes( int index, QList<QgsLayerTreeNode*> nodes )
 {
   // low-level insert
-  insertChildren( index, nodes );
+  insertChildrenPrivate( index, nodes );
 
   updateVisibilityFromChildren();
 }
@@ -86,7 +86,7 @@ void QgsLayerTreeGroup::removeChildNode( QgsLayerTreeNode *node )
 {
   int i = mChildren.indexOf( node );
   if ( i >= 0 )
-    removeChildAt( i );
+    removeChildren( i, 1 );
 }
 
 void QgsLayerTreeGroup::removeLayer( QgsMapLayer* layer )
@@ -98,7 +98,7 @@ void QgsLayerTreeGroup::removeLayer( QgsMapLayer* layer )
       QgsLayerTreeLayer* childLayer = QgsLayerTree::toLayer( child );
       if ( childLayer->layer() == layer )
       {
-        removeChildAt( mChildren.indexOf( child ) );
+        removeChildren( mChildren.indexOf( child ), 1 );
         break;
       }
     }
@@ -107,7 +107,7 @@ void QgsLayerTreeGroup::removeLayer( QgsMapLayer* layer )
 
 void QgsLayerTreeGroup::removeChildren( int from, int count )
 {
-  removeChildrenRange( from, count );
+  removeChildrenPrivate( from, count );
 
   updateVisibilityFromChildren();
 }

src/core/layertree/qgslayertreenode.cpp

@@ -39,7 +39,7 @@ QgsLayerTreeNode::QgsLayerTreeNode( const QgsLayerTreeNode& other )
   QList<QgsLayerTreeNode*> clonedChildren;
   foreach ( QgsLayerTreeNode* child, other.mChildren )
     clonedChildren << child->clone();
-  insertChildren( -1, clonedChildren );
+  insertChildrenPrivate( -1, clonedChildren );
 }
 
 QgsLayerTreeNode::~QgsLayerTreeNode()
@@ -91,14 +91,7 @@ void QgsLayerTreeNode::writeCommonXML( QDomElement& element )
   mProperties.writeXml( element, doc );
 }
 
-void QgsLayerTreeNode::insertChild( int index, QgsLayerTreeNode *node )
-{
-  QList<QgsLayerTreeNode*> nodes;
-  nodes << node;
-  insertChildren( index, nodes );
-}
-
-void QgsLayerTreeNode::insertChildren( int index, QList<QgsLayerTreeNode*> nodes )
+void QgsLayerTreeNode::insertChildrenPrivate( int index, QList<QgsLayerTreeNode*> nodes )
 {
   foreach ( QgsLayerTreeNode* node, nodes )
   {
@@ -126,12 +119,7 @@ void QgsLayerTreeNode::insertChildren( int index, QList<QgsLayerTreeNode*> nodes
   emit addedChildren( this, index, indexTo );
 }
 
-void QgsLayerTreeNode::removeChildAt( int i )
-{
-  removeChildrenRange( i, 1 );
-}
-
-void QgsLayerTreeNode::removeChildrenRange( int from, int count )
+void QgsLayerTreeNode::removeChildrenPrivate( int from, int count )
 {
   if ( count <= 0 )
     return;

src/core/layertree/qgslayertreenode.h

@@ -130,11 +130,10 @@ class CORE_EXPORT QgsLayerTreeNode : public QObject
     void readCommonXML( QDomElement& element );
     void writeCommonXML( QDomElement& element );
 
-    // the child must not be in any tree yet!
-    void insertChildren( int index, QList<QgsLayerTreeNode*> nodes );
-    void insertChild( int index, QgsLayerTreeNode* node );
-    void removeChildAt( int i );
-    void removeChildrenRange( int from, int count );
+    //! Low-level insertion of children to the node. The children must not have any parent yet!
+    void insertChildrenPrivate( int index, QList<QgsLayerTreeNode*> nodes );
+    //! Low-level removal of children from the node.
+    void removeChildrenPrivate( int from, int count );
 
 
   protected: