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1 | -- Created on: 1994-02-16 |
2 | -- Created by: Christian CAILLET |
3 | -- Copyright (c) 1994-1999 Matra Datavision |
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4 | -- Copyright (c) 1999-2014 OPEN CASCADE SAS |
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5 | -- |
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6 | -- This file is part of Open CASCADE Technology software library. |
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7 | -- |
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8 | -- This library is free software; you can redistribute it and/or modify it under |
9 | -- the terms of the GNU Lesser General Public License version 2.1 as published |
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10 | -- by the Free Software Foundation, with special exception defined in the file |
11 | -- OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
12 | -- distribution for complete text of the license and disclaimer of any warranty. |
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13 | -- |
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14 | -- Alternatively, this file may be used under the terms of Open CASCADE |
15 | -- commercial license or contractual agreement. |
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16 | |
17 | deferred class SelectControl from IFSelect inherits Selection |
18 | |
19 | ---Purpose : A SelectControl kind Selection works with two input Selections |
20 | -- in a dissymmetric way : the Main Input which gives an input |
21 | -- list of Entities, to be processed, and the Second Input which |
22 | -- gives another list, to be used to filter the main input. |
23 | -- |
24 | -- e.g. : SelectDiff retains the items of the Main Input which |
25 | -- are not in the Control Input (which acts as Diff Input) |
26 | -- or a specific selection which retains Entities from the Main |
27 | -- Input if and only if they are concerned by an entity from |
28 | -- the Control Input (such as Views in IGES, etc...) |
29 | -- |
30 | -- The way RootResult and Label are produced are at charge of |
31 | -- each sub-class |
32 | |
33 | uses SelectionIterator |
34 | |
35 | is |
36 | |
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37 | MainInput (me) returns Selection; |
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38 | ---Purpose : Returns the Main Input Selection |
39 | |
40 | HasSecondInput (me) returns Boolean; |
41 | ---Purpose : Returns True if a Control Input is defined |
42 | -- Thus, Result can be computed differently if there is a |
43 | -- Control Input or if there is none |
44 | |
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45 | SecondInput (me) returns Selection; |
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46 | ---Purpose : Returns the Control Input Selection, or a Null Handle |
47 | |
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48 | SetMainInput (me : mutable; sel : Selection); |
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49 | ---Purpose : Sets a Selection to be the Main Input |
50 | |
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51 | SetSecondInput (me : mutable; sel : Selection); |
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52 | ---Purpose : Sets a Selection to be the Control Input |
53 | |
54 | |
55 | -- RootResult,Label remain to be defined by each class of Selection |
56 | -- (also HasUniqueResult if it applies) |
57 | |
58 | FillIterator (me; iter : in out SelectionIterator); |
59 | ---Purpose : Puts in an Iterator the Selections from which "me" depends |
60 | -- That is to say, the list of Input Selections |
61 | |
62 | |
63 | fields |
64 | |
65 | themain : Selection; |
66 | thesecond : Selection; |
67 | |
68 | end SelectControl; |