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0001 // Created on: 1998-07-28 0002 // Created by: Christian CAILLET 0003 // Copyright (c) 1998-1999 Matra Datavision 0004 // Copyright (c) 1999-2014 OPEN CASCADE SAS 0005 // 0006 // This file is part of Open CASCADE Technology software library. 0007 // 0008 // This library is free software; you can redistribute it and/or modify it under 0009 // the terms of the GNU Lesser General Public License version 2.1 as published 0010 // by the Free Software Foundation, with special exception defined in the file 0011 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT 0012 // distribution for complete text of the license and disclaimer of any warranty. 0013 // 0014 // Alternatively, this file may be used under the terms of Open CASCADE 0015 // commercial license or contractual agreement. 0016 0017 #ifndef _IFSelect_ListEditor_HeaderFile 0018 #define _IFSelect_ListEditor_HeaderFile 0019 0020 #include <Standard.hxx> 0021 0022 #include <Standard_Integer.hxx> 0023 #include <TColStd_HSequenceOfHAsciiString.hxx> 0024 #include <TColStd_HSequenceOfInteger.hxx> 0025 #include <Standard_Transient.hxx> 0026 class Interface_TypedValue; 0027 class Interface_InterfaceModel; 0028 class TCollection_HAsciiString; 0029 0030 class IFSelect_ListEditor; 0031 DEFINE_STANDARD_HANDLE(IFSelect_ListEditor, Standard_Transient) 0032 0033 //! A ListEditor is an auxiliary operator for Editor/EditForm 0034 //! I.E. it works on parameter values expressed as strings 0035 //! 0036 //! For a parameter which is a list, it may not be edited in once 0037 //! by just setting a new value (as a string) 0038 //! 0039 //! Firstly, a list can be long (and tedious to be accessed flat) 0040 //! then requires a better way of accessing 0041 //! 0042 //! Moreover, not only its VALUES may be changed (SetValue), but 0043 //! also its LENGTH : items may be added or removed ... 0044 //! 0045 //! Hence, the way of editing a parameter as a list is : 0046 //! - edit it separately, with the help of a ListEditor 0047 //! - it remains possible to prepare a new list of values apart 0048 //! - then give the new list in once to the EditForm 0049 //! 0050 //! An EditList is produced by the Editor, with a basic definition 0051 //! This definition (brought by this class) can be redefined 0052 //! Hence the Editor may produce a specific ListEditor as needed 0053 class IFSelect_ListEditor : public Standard_Transient 0054 { 0055 0056 public: 0057 0058 //! Creates a ListEditor with absolutely no constraint 0059 Standard_EXPORT IFSelect_ListEditor(); 0060 0061 //! Creates a ListEditor, for which items of the list to edit are 0062 //! defined by <def>, and <max> describes max length : 0063 //! 0 (D) means no limit 0064 //! value > 0 means : no more the <max> items are allowed 0065 Standard_EXPORT IFSelect_ListEditor(const Handle(Interface_TypedValue)& def, const Standard_Integer max = 0); 0066 0067 //! Loads a Model. It is used to check items of type Entity(Ident) 0068 Standard_EXPORT void LoadModel (const Handle(Interface_InterfaceModel)& model); 0069 0070 //! Loads the original values for the list. 0071 //! Remark : If its length is more then MaxLength, editions remain allowed, except Add 0072 Standard_EXPORT void LoadValues (const Handle(TColStd_HSequenceOfHAsciiString)& vals); 0073 0074 //! Declares this ListEditor to have been touched (whatever action) 0075 Standard_EXPORT void SetTouched(); 0076 0077 //! Clears all editions already recorded 0078 Standard_EXPORT void ClearEdit(); 0079 0080 //! Loads a new list to replace the older one, in once ! 0081 //! By default (can be redefined) checks the length of the list 0082 //! and the value of each item according to the def 0083 //! Items are all recorded as Modified 0084 //! 0085 //! If no def has been given at creation time, no check is done 0086 //! Returns True when done, False if checks have failed ... a 0087 //! specialisation may also lock it by returning always False ... 0088 Standard_EXPORT virtual Standard_Boolean LoadEdited (const Handle(TColStd_HSequenceOfHAsciiString)& list); 0089 0090 //! Sets a new value for the item <num> (in edited list) 0091 //! <val> may be a Null Handle, then the value will be cleared but 0092 //! not removed 0093 //! Returns True when done. False if <num> is out of range or if 0094 //! <val> does not satisfy the definition 0095 Standard_EXPORT virtual Standard_Boolean SetValue (const Standard_Integer num, const Handle(TCollection_HAsciiString)& val); 0096 0097 //! Adds a new item. By default appends (at the end of the list) 0098 //! Can insert before a given rank <num>, if positive 0099 //! Returns True when done. False if MaxLength may be overpassed 0100 //! or if <val> does not satisfy the definition 0101 Standard_EXPORT virtual Standard_Boolean AddValue (const Handle(TCollection_HAsciiString)& val, const Standard_Integer atnum = 0); 0102 0103 //! Removes items from the list 0104 //! By default removes one item. Else, count given by <howmany> 0105 //! Remove from rank <num> included. By default, from the end 0106 //! Returns True when done, False (and does not work) if case of 0107 //! out of range of if <howmany> is greater than current length 0108 Standard_EXPORT virtual Standard_Boolean Remove (const Standard_Integer num = 0, const Standard_Integer howmany = 1); 0109 0110 //! Returns the value from which the edition started 0111 Standard_EXPORT Handle(TColStd_HSequenceOfHAsciiString) OriginalValues() const; 0112 0113 //! Returns the result of the edition 0114 Standard_EXPORT Handle(TColStd_HSequenceOfHAsciiString) EditedValues() const; 0115 0116 //! Returns count of values, edited (D) or original 0117 Standard_EXPORT Standard_Integer NbValues (const Standard_Boolean edited = Standard_True) const; 0118 0119 //! Returns a value given its rank. Edited (D) or Original 0120 //! A Null String means the value is cleared but not removed 0121 Standard_EXPORT Handle(TCollection_HAsciiString) Value (const Standard_Integer num, const Standard_Boolean edited = Standard_True) const; 0122 0123 //! Tells if a value (in edited list) has been changed, i.e. 0124 //! either modified-value, or added 0125 Standard_EXPORT Standard_Boolean IsChanged (const Standard_Integer num) const; 0126 0127 //! Tells if a value (in edited list) has been modified-value 0128 //! (not added) 0129 Standard_EXPORT Standard_Boolean IsModified (const Standard_Integer num) const; 0130 0131 //! Tells if a value (in edited list) has been added (new one) 0132 Standard_EXPORT Standard_Boolean IsAdded (const Standard_Integer num) const; 0133 0134 //! Tells if at least one edition (SetValue-AddValue-Remove) has 0135 //! been recorded 0136 Standard_EXPORT Standard_Boolean IsTouched() const; 0137 0138 DEFINE_STANDARD_RTTIEXT(IFSelect_ListEditor,Standard_Transient) 0139 0140 private: 0141 0142 Standard_Integer themax; 0143 Handle(Interface_TypedValue) thedef; 0144 Standard_Integer thetouc; 0145 Handle(TColStd_HSequenceOfHAsciiString) theorig; 0146 Handle(TColStd_HSequenceOfHAsciiString) theedit; 0147 Handle(TColStd_HSequenceOfInteger) thestat; 0148 Handle(Interface_InterfaceModel) themodl; 0149 0150 }; 0151 0152 #endif // _IFSelect_ListEditor_HeaderFile
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