1 // Copyright (C) 2014-2017 CEA/DEN, EDF R&D
3 // This library is free software; you can redistribute it and/or
4 // modify it under the terms of the GNU Lesser General Public
5 // License as published by the Free Software Foundation; either
6 // version 2.1 of the License, or (at your option) any later version.
8 // This library is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 // Lesser General Public License for more details.
13 // You should have received a copy of the GNU Lesser General Public
14 // License along with this library; if not, write to the Free Software
15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 // See http://www.salome-platform.org/ or
18 // email : webmaster.salome@opencascade.com<mailto:webmaster.salome@opencascade.com>
21 #ifndef ModuleBase_ITreeNode_H
22 #define ModuleBase_ITreeNode_H
24 #include "ModuleBase.h"
25 #include "ModuleBase_Definitions.h"
27 #include <ModelAPI_Object.h>
28 #include <ModelAPI_Document.h>
35 class ModuleBase_ITreeNode;
36 class ModuleBase_IWorkshop;
38 typedef QList<ModuleBase_ITreeNode*> QTreeNodesList;
40 class ModuleBase_ITreeNode
43 enum VisibilityState {
50 /// Default constructor
51 ModuleBase_ITreeNode(ModuleBase_ITreeNode* theParent = 0) : myParent(theParent) {}
53 virtual ~ModuleBase_ITreeNode() { deleteChildren(); }
55 virtual std::string type() const = 0;
57 /// Returns the node representation according to theRole.
58 virtual QVariant data(int theColumn, int theRole) const { return QVariant(); }
60 /// Returns properties flag of the item
61 virtual Qt::ItemFlags flags(int theColumn) const {
62 return Qt::ItemIsSelectable | Qt::ItemIsEnabled;
65 /// Returns parent node of the current node
66 ModuleBase_ITreeNode* parent() const { return myParent; }
68 /// Returns list of the node children
69 QTreeNodesList children() const { return myChildren; }
71 /// Returns a children node according to given row (index)
72 ModuleBase_ITreeNode* subNode(int theRow) const
74 if ((theRow > -1) && (theRow < myChildren.length()))
75 return myChildren.at(theRow);
79 /// Finds a node which contains the referenced object
80 /// \param theObj an object to find
81 /// \param allLevels if true then all sub-trees will be processed
82 ModuleBase_ITreeNode* subNode(const ObjectPtr& theObj, bool allLevels = true) const
84 foreach(ModuleBase_ITreeNode* aNode, myChildren) {
85 if (aNode->object() == theObj)
88 ModuleBase_ITreeNode* aSubNode = aNode->subNode(theObj, allLevels);
96 /// Returns true if the given node is found within children
97 /// \param theNode a node to find
98 /// \param allLevels if true then all sub-trees will be processed
99 bool hasSubNode(ModuleBase_ITreeNode* theNode, bool allLevels = true) const
101 foreach(ModuleBase_ITreeNode* aNode, myChildren) {
102 if (aNode == theNode)
105 if (aNode->hasSubNode(theNode))
112 /// Returns number of children
113 int childrenCount() const { return myChildren.length(); }
115 int nodeRow(ModuleBase_ITreeNode* theNode) const { return myChildren.indexOf(theNode); }
117 /// Returns object referenced by the node (can be null)
118 virtual ObjectPtr object() const { return ObjectPtr(); }
120 /// Updates all sub-nodes of the node (checks whole sub-tree)
121 virtual void update() {}
123 /// Process creation of objects.
124 /// \param theObjects a list of created objects
125 /// \return a list of nodes which corresponds to the created objects
126 virtual QTreeNodesList objectCreated(const QObjectPtrList& theObjects) {
127 return QTreeNodesList();
130 /// Process deletion of objects.
131 /// \param theDoc a document where objects were deleted
132 /// \param theGroup a name of group where objects were deleted
133 /// \return a list of parents where nodes were deleted
134 virtual QTreeNodesList objectsDeleted(const DocumentPtr& theDoc, const QString& theGroup)
135 { return QTreeNodesList(); }
137 /// Returns workshop object. Has to be reimplemented in a root node
138 virtual ModuleBase_IWorkshop* workshop() const { return parent()->workshop(); }
140 /// Returns document object of the sub-tree. Has to be reimplemented in sub-tree root object
141 virtual DocumentPtr document() const { return parent()->document(); }
143 /// Returns a node which belongs to the given document and contains objects of the given group
144 /// \param theDoc a document
145 /// \param theGroup a name of objects group
146 /// \return a parent node if it is found
147 virtual ModuleBase_ITreeNode* findParent(const DocumentPtr& theDoc, QString theGroup)
150 /// Returns root node of a data tree of the given document
151 /// \param theDoc a document
152 /// \return a tree node which is a root of the document structure
153 virtual ModuleBase_ITreeNode* findRoot(const DocumentPtr& theDoc)
155 if (document() == theDoc)
157 ModuleBase_ITreeNode* aRoot;
158 foreach(ModuleBase_ITreeNode* aNode, myChildren) {
159 aRoot = aNode->findRoot(theDoc);
166 /// Returns visibilitystate of the node in viewer 3d
167 virtual VisibilityState visibilityState() const { return NoneState; }
171 /// deletes all children nodes (called in destructor.)
172 virtual void deleteChildren()
174 while (myChildren.size()) {
175 ModuleBase_ITreeNode* aNode = myChildren.takeLast();
180 void sortChildren() {
181 if (myChildren.size() > 1) {
183 ModuleBase_ITreeNode* aNode = 0;
187 int aSize = myChildren.size();
188 int aMaxCount = aSize * aSize;
192 // To avoid unlimited cycling
193 if (aCount > aMaxCount)
196 aNode = myChildren.at(i);
197 aObject = aNode->object();
199 aIdx = aObject->document()->index(aObject, true) + aShift;
201 myChildren.removeAll(aNode);
202 myChildren.insert(aIdx, aNode);
214 ModuleBase_ITreeNode* myParent; //!< Parent of the node
215 QTreeNodesList myChildren; //!< Children of the node