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qgslayertree.h
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1 /***************************************************************************
2  qgslayertree.h
3  --------------------------------------
4  Date : May 2014
5  Copyright : (C) 2014 by Martin Dobias
6  Email : wonder dot sk at gmail dot com
7  ***************************************************************************
8  * *
9  * This program is free software; you can redistribute it and/or modify *
10  * it under the terms of the GNU General Public License as published by *
11  * the Free Software Foundation; either version 2 of the License, or *
12  * (at your option) any later version. *
13  * *
14  ***************************************************************************/
15 
16 #ifndef QGSLAYERTREE_H
17 #define QGSLAYERTREE_H
18 
19 #include "qgslayertreenode.h"
20 #include "qgslayertreegroup.h"
21 #include "qgslayertreelayer.h"
22 
31 namespace QgsLayerTree
32 {
34  inline bool isGroup( QgsLayerTreeNode* node )
35  {
36  return node && node->nodeType() == QgsLayerTreeNode::NodeGroup;
37  }
38 
40  inline bool isLayer( QgsLayerTreeNode* node )
41  {
42  return node && node->nodeType() == QgsLayerTreeNode::NodeLayer;
43  }
44 
47  {
48  return static_cast<QgsLayerTreeGroup*>( node );
49  }
50 
53  {
54  return static_cast<QgsLayerTreeLayer*>( node );
55  }
56 
57 }
58 
59 #endif // QGSLAYERTREE_H
Layer tree group node serves as a container for layers and further groups.
Definition: qgslayertreegroup.h:31
NodeType nodeType()
Find out about type of the node. It is usually shorter to use convenience functions from QgsLayerTree...
Definition: qgslayertreenode.h:78
QgsLayerTreeGroup * toGroup(QgsLayerTreeNode *node)
Cast node to a group. No type checking is done - use isGroup() to find out whether this operation is ...
Definition: qgslayertree.h:46
Namespace with helper functions for layer tree operations.
Definition: qgslayertree.h:31
This class is a base class for nodes in a layer tree.
Definition: qgslayertreenode.h:63
bool isLayer(QgsLayerTreeNode *node)
Check whether the node is a valid layer node.
Definition: qgslayertree.h:40
leaf node pointing to a layer
Definition: qgslayertreenode.h:72
QgsLayerTreeLayer * toLayer(QgsLayerTreeNode *node)
Cast node to a layer. No type checking is done - use isLayer() to find out whether this operation is ...
Definition: qgslayertree.h:52
container of other groups and layers
Definition: qgslayertreenode.h:71
bool isGroup(QgsLayerTreeNode *node)
Check whether the node is a valid group node.
Definition: qgslayertree.h:34
Layer tree node points to a map layer.
Definition: qgslayertreelayer.h:41