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0001 // Created on: 1994-05-30 0002 // Created by: Christian CAILLET 0003 // Copyright (c) 1994-1999 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_SelectPointed_HeaderFile 0018 #define _IFSelect_SelectPointed_HeaderFile 0019 0020 #include <Standard.hxx> 0021 #include <Standard_Type.hxx> 0022 0023 #include <IFSelect_SelectBase.hxx> 0024 #include <TColStd_HSequenceOfTransient.hxx> 0025 #include <Standard_Integer.hxx> 0026 class Standard_Transient; 0027 class Interface_CopyControl; 0028 class IFSelect_Transformer; 0029 class Interface_EntityIterator; 0030 class Interface_Graph; 0031 class TCollection_AsciiString; 0032 0033 0034 class IFSelect_SelectPointed; 0035 DEFINE_STANDARD_HANDLE(IFSelect_SelectPointed, IFSelect_SelectBase) 0036 0037 //! This type of Selection is intended to describe a direct 0038 //! selection without an explicit criterium, for instance the 0039 //! result of picking viewed entities on a graphic screen 0040 //! 0041 //! It can also be used to provide a list as internal alternate 0042 //! input : this use implies to clear the list once queried 0043 class IFSelect_SelectPointed : public IFSelect_SelectBase 0044 { 0045 0046 public: 0047 0048 0049 //! Creates a SelectPointed 0050 Standard_EXPORT IFSelect_SelectPointed(); 0051 0052 //! Clears the list of selected items 0053 //! Also says the list is unset 0054 //! All Add* methods and SetList say the list is set 0055 Standard_EXPORT void Clear(); 0056 0057 //! Tells if the list has been set. Even if empty 0058 Standard_EXPORT Standard_Boolean IsSet() const; 0059 0060 //! As SetList but with only one entity 0061 //! If <ent> is Null, the list is said as being set but is empty 0062 Standard_EXPORT void SetEntity (const Handle(Standard_Transient)& item); 0063 0064 //! Sets a given list to define the list of selected items 0065 //! <list> can be empty or null : in this case, the list is said 0066 //! as being set, but it is empty 0067 //! 0068 //! To use it as an alternate input, one shot : 0069 //! - SetList or SetEntity to define the input list 0070 //! - RootResult to get it 0071 //! - then Clear to drop it 0072 Standard_EXPORT void SetList (const Handle(TColStd_HSequenceOfTransient)& list); 0073 0074 //! Adds an item. Returns True if Done, False if <item> is already 0075 //! in the selected list 0076 Standard_EXPORT Standard_Boolean Add (const Handle(Standard_Transient)& item); 0077 0078 //! Removes an item. Returns True if Done, False if <item> was not 0079 //! in the selected list 0080 Standard_EXPORT Standard_Boolean Remove (const Handle(Standard_Transient)& item); 0081 0082 //! Toggles status of an item : adds it if not pointed or removes 0083 //! it if already pointed. Returns the new status (Pointed or not) 0084 Standard_EXPORT Standard_Boolean Toggle (const Handle(Standard_Transient)& item); 0085 0086 //! Adds all the items defined in a list. Returns True if at least 0087 //! one item has been added, False else 0088 Standard_EXPORT Standard_Boolean AddList (const Handle(TColStd_HSequenceOfTransient)& list); 0089 0090 //! Removes all the items defined in a list. Returns True if at 0091 //! least one item has been removed, False else 0092 Standard_EXPORT Standard_Boolean RemoveList (const Handle(TColStd_HSequenceOfTransient)& list); 0093 0094 //! Toggles status of all the items defined in a list : adds it if 0095 //! not pointed or removes it if already pointed. 0096 Standard_EXPORT Standard_Boolean ToggleList (const Handle(TColStd_HSequenceOfTransient)& list); 0097 0098 //! Returns the rank of an item in the selected list, or 0. 0099 Standard_EXPORT Standard_Integer Rank (const Handle(Standard_Transient)& item) const; 0100 0101 //! Returns the count of selected items 0102 Standard_EXPORT Standard_Integer NbItems() const; 0103 0104 //! Returns an item given its rank, or a Null Handle 0105 Standard_EXPORT Handle(Standard_Transient) Item (const Standard_Integer num) const; 0106 0107 //! Rebuilds the selected list. Any selected entity which has a 0108 //! bound result is replaced by this result, else it is removed. 0109 Standard_EXPORT void Update (const Handle(Interface_CopyControl)& control); 0110 0111 //! Rebuilds the selected list, by querying a Transformer 0112 //! (same principle as from a CopyControl) 0113 Standard_EXPORT void Update (const Handle(IFSelect_Transformer)& trf); 0114 0115 //! Returns the list of selected items. Only the selected entities 0116 //! which are present in the graph are given (this result assures 0117 //! uniqueness). 0118 Standard_EXPORT Interface_EntityIterator RootResult (const Interface_Graph& G) const Standard_OVERRIDE; 0119 0120 //! Returns a text which identifies the type of selection made. 0121 //! It is "Pointed Entities" 0122 Standard_EXPORT TCollection_AsciiString Label() const Standard_OVERRIDE; 0123 0124 0125 0126 0127 DEFINE_STANDARD_RTTIEXT(IFSelect_SelectPointed,IFSelect_SelectBase) 0128 0129 protected: 0130 0131 0132 0133 0134 private: 0135 0136 0137 Standard_Boolean theset; 0138 TColStd_SequenceOfTransient theitems; 0139 0140 0141 }; 0142 0143 0144 0145 0146 0147 0148 0149 #endif // _IFSelect_SelectPointed_HeaderFile
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