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1 | // Copyright (c) 2015 OPEN CASCADE SAS |
2 | // |
3 | // This file is part of Open CASCADE Technology software library. |
4 | // |
5 | // This library is free software; you can redistribute it and/or modify it under |
6 | // the terms of the GNU Lesser General Public License version 2.1 as published |
7 | // by the Free Software Foundation, with special exception defined in the file |
8 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
9 | // distribution for complete text of the license and disclaimer of any warranty. |
10 | // |
11 | // Alternatively, this file may be used under the terms of Open CASCADE |
12 | // commercial license or contractual agreement. |
13 | |
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14 | #include <StdLPersistent_TreeNode.hxx> |
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15 | |
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16 | |
17 | //======================================================================= |
18 | //function : Read |
19 | //purpose : Read persistent data from a file |
20 | //======================================================================= |
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21 | void StdLPersistent_TreeNode::Read (StdObjMgt_ReadData& theReadData) |
22 | { |
23 | myDynamicData = new dynamic; |
24 | theReadData >> myDynamicData->First >> myNext >> myDynamicData->TreeID; |
25 | } |
26 | |
27 | //======================================================================= |
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28 | //function : Write |
29 | //purpose : Write persistent data to a file |
30 | //======================================================================= |
31 | void StdLPersistent_TreeNode::Write (StdObjMgt_WriteData& theWriteData) const |
32 | { |
33 | theWriteData << myDynamicData->First << myNext << myDynamicData->TreeID; |
34 | } |
35 | |
36 | //======================================================================= |
37 | //function : PChildren |
38 | //purpose : Gets persistent child objects |
39 | //======================================================================= |
40 | void StdLPersistent_TreeNode::PChildren |
41 | (StdObjMgt_Persistent::SequenceOfPersistent& theChildren) const |
42 | { |
43 | theChildren.Append(myNext); |
44 | if (!myDynamicData.IsNull()) |
45 | theChildren.Append(myDynamicData->First); |
46 | } |
47 | |
48 | //======================================================================= |
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49 | //function : CreateAttribute |
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50 | //purpose : Create an empty transient attribute |
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51 | //======================================================================= |
52 | Handle(TDF_Attribute) StdLPersistent_TreeNode::CreateAttribute() |
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53 | { |
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54 | Static::CreateAttribute(); |
55 | myTransient->SetTreeID (myDynamicData->TreeID); |
56 | return myTransient; |
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57 | } |
58 | |
59 | //======================================================================= |
60 | //function : ImportAttribute |
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61 | //purpose : Import transient attribute from the persistent data |
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62 | //======================================================================= |
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63 | void StdLPersistent_TreeNode::ImportAttribute() |
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64 | { |
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65 | if (myDynamicData) |
66 | { |
67 | Handle(StdLPersistent_TreeNode) aChild = myDynamicData->First; |
68 | while (aChild) |
69 | { |
70 | if (aChild->myTransient) |
71 | myTransient->Append(aChild->myTransient); |
72 | StdLPersistent_TreeNode* aCurr = aChild.get(); |
73 | aChild = aChild->myNext; |
74 | aCurr->myNext.Nullify(); // this reference is no longer needed |
75 | } |
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76 | |
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77 | myDynamicData.Nullify(); |
78 | } |
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79 | } |