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DF_Label.hxx
Go to the documentation of this file.
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// Copyright (C) 2007-2016 CEA/DEN, EDF R&D, OPEN CASCADE
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
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//
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#ifndef DFLABEL_HXX
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#define DFLABEL_HXX
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#include "
DF_definitions.hxx
"
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#include "
DF_Attribute.hxx
"
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#include <string>
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#include <vector>
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#include <map>
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class
DF_Document
;
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class
DF_LabelNode
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{
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public
:
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DF_LabelNode
();
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~DF_LabelNode
();
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void
Reset
();
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private
:
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int
_tag
;
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int
_depth
;
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DF_LabelNode
*
_father
;
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DF_LabelNode
*
_previous
;
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DF_LabelNode
*
_next
;
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DF_LabelNode
*
_firstChild
;
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DF_LabelNode
*
_lastChild
;
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DF_Document
*
_document
;
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std::map< std::string, DF_Attribute* >
_attributes
;
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friend
class
DF_Document
;
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friend
class
DF_Label
;
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friend
class
DF_ChildIterator
;
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friend
class
DF_Attribute
;
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};
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//Class DF_Label defines a persistence reference in DF_Document that contains a tree of Labels.
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//This reference is named "entry" and is a sequence of tags divided by ":". The root entry is "0:".
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//For example "0:1:1" corresponds the following structure
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// 0_
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// |
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// |_1_
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// |
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// |_ 1
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class
DF_Label
{
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public
:
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//Returns a Label by its entry, if isCreated true the Label will be created if not exists
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Standard_EXPORT
static
DF_Label
Label
(
const
DF_Label
& theLabel,
const
std::string& theEntry,
bool
isCreated =
true
);
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//Constructors: creates a root label
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Standard_EXPORT
DF_Label
();
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//Copy constructor
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Standard_EXPORT
DF_Label
(
const
DF_Label& theLabel);
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//Creates a Label from the LabelNode
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Standard_EXPORT
DF_Label
(
DF_LabelNode
* theNode);
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//Operator =
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Standard_EXPORT
DF_Label&
operator=
(
const
DF_Label& theLabel);
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//Destructor
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Standard_EXPORT
~DF_Label
();
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//Returns a smart pointer to Document which contains this Label
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Standard_EXPORT
DF_Document
*
GetDocument
()
const
;
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//Returns true if theLabel equals to this label
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Standard_EXPORT
bool
operator==
(
const
DF_Label& theLabel);
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//Returns true if theLabel doesn't equals to this label
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Standard_EXPORT
bool
operator!=
(
const
DF_Label& theLabel);
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//Returns a tag of this Label
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Standard_EXPORT
int
Tag
()
const
;
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//Returns true if this Label is attached to the tree in the Document.
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Standard_EXPORT
bool
IsAttached
();
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//Searches an Attribute with given ID located on this Label.
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//Returns true if the Attribute is found.
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Standard_EXPORT
DF_Attribute
*
FindAttribute
(
const
std::string& theID)
const
;
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//Returns true if there is an Attribute with given ID on this Label.
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Standard_EXPORT
bool
IsAttribute
(
const
std::string& theID)
const
;
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//Adds theAttribute to the Label where this Attribute is located.
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//Returns true if theAttribute was added.
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Standard_EXPORT
bool
AddAttribute
(
DF_Attribute
* theAttribute)
const
;
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//Forgets an Attribute with given ID located on the this Label.
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Standard_EXPORT
bool
ForgetAttribute
(
const
std::string& theID)
const
;
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//Forgets all Attributes located on this Label.
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Standard_EXPORT
bool
ForgetAllAttributes
(
bool
clearChildren =
true
)
const
;
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//Returns Father of this Label.
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Standard_EXPORT
DF_Label
Father
()
const
;
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//Return true if the label is not initialized
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Standard_EXPORT
bool
IsNull
()
const
;
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//Return true if the label is a Root label
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Standard_EXPORT
bool
IsRoot
()
const
;
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//Returns true if this Label has Attributes.
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Standard_EXPORT
bool
HasAttributes
()
const
;
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//Returns a list of Attributes of this Label.
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Standard_EXPORT
std::vector<DF_Attribute*>
GetAttributes
()
const
;
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//Returns true if this Label has a child Label.
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Standard_EXPORT
bool
HasChild
()
const
;
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//Returns a number of child Labels.
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Standard_EXPORT
int
NbChildren
()
const
;
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//Returns the depth (a number of fathers required to identify the Label) of this Label in the tree.
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Standard_EXPORT
int
Depth
()
const
;
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//Returns true if this Label is a descendant of theLabel.
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Standard_EXPORT
bool
IsDescendant
(
const
DF_Label& theLabel);
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//Returns the root Label of a Label tree to which this Label belongs.
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Standard_EXPORT
DF_Label
Root
()
const
;
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//Finds a child Label of this Label with a given tag. If isCreate = true and there is no child
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//Label with the given tag, the child Label is created.
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Standard_EXPORT
DF_Label
FindChild
(
int
theTag,
bool
isCreate =
true
);
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//Creates a new child Label of this Label.
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Standard_EXPORT
DF_Label
NewChild
();
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//Returns a tag of the last child
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Standard_EXPORT
int
LastChildTag
()
const
;
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//Returns a string presentation of the entry
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Standard_EXPORT
std::string
Entry
()
const
;
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//Returns true if theLabel is the same as me
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Standard_EXPORT
bool
IsEqual
(
const
DF_Label& theLabel);
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Standard_EXPORT
void
dump
();
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private
:
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//Nullifies the content of the label
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void
Nullify
();
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friend
class
DF_Document
;
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friend
class
DF_ChildIterator
;
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private
:
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DF_LabelNode
*
_node
;
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};
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#endif
src
DF
DF_Label.hxx
Copyright © 2007-2017 CEA/DEN, EDF R&D, OPEN CASCADE
Copyright © 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN, CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS