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1 | -- Created on: 1997-03-06 |
2 | -- Created by: Robert COUBLANC |
3 | -- Copyright (c) 1997-1999 Matra Datavision |
4 | -- Copyright (c) 1999-2012 OPEN CASCADE SAS |
5 | -- |
6 | -- The content of this file is subject to the Open CASCADE Technology Public |
7 | -- License Version 6.5 (the "License"). You may not use the content of this file |
8 | -- except in compliance with the License. Please obtain a copy of the License |
9 | -- at http://www.opencascade.org and read it completely before using this file. |
10 | -- |
11 | -- The Initial Developer of the Original Code is Open CASCADE S.A.S., having its |
12 | -- main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France. |
13 | -- |
14 | -- The Original Code and all software distributed under the License is |
15 | -- distributed on an "AS IS" basis, without warranty of any kind, and the |
16 | -- Initial Developer hereby disclaims all such warranties, including without |
17 | -- limitation, any warranties of merchantability, fitness for a particular |
18 | -- purpose or non-infringement. Please see the License for the specific terms |
19 | -- and conditions governing the rights and limitations under the License. |
20 | |
7fd59977 |
21 | |
22 | |
23 | class TypeFilter from AIS inherits Filter from SelectMgr |
24 | |
25 | ---Purpose: Selects Interactive Objects through their types. The |
26 | -- filter questions each Interactive Object in local context |
27 | -- to determine whether it has an non-null owner, and if |
28 | -- so, whether it is of the desired type. If the object |
29 | -- returns true in each case, it is kept. If not, it is rejected. |
30 | -- By default, the interactive object has a None type |
31 | -- and a signature of 0. A filter for type specifies a |
32 | -- choice of type out of a range at any level enumerated |
33 | -- for type or kind. The choice could be for kind of |
34 | -- interactive object, of dimension, of unit, or type of axis, |
35 | -- plane or attribute. |
36 | -- If you want to give a particular type and signature to |
37 | -- your Interactive Object, you must redefine two virtual |
38 | -- methods: Type and Signature. |
39 | -- This filter is used in both Neutral Point and open local contexts. |
40 | -- In the Collector viewer, you can only locate |
41 | -- Interactive Objects which answer positively to the |
42 | -- positioned filters when a local context is open. |
43 | -- Warning |
44 | -- When you close a local context, all temporary |
45 | -- interactive objects are deleted, all selection modes |
46 | -- concerning the context are cancelled, and all content |
47 | -- filters are emptied. |
48 | |
49 | uses |
50 | KindOfInteractive from AIS, |
51 | EntityOwner from SelectMgr |
52 | |
53 | is |
54 | Create(aGivenKind : KindOfInteractive from AIS) |
55 | returns mutable TypeFilter from AIS; |
56 | ---Purpose: Initializes filter for type, aGivenKind. |
57 | IsOk (me;anobj : EntityOwner from SelectMgr) |
58 | returns Boolean from Standard is redefined virtual; |
59 | ---Purpose: Returns False if the transient is not an Interactive |
60 | -- Object, or if the type of the Interactive Object is not |
61 | -- the same as that stored in the filter. |
62 | |
63 | fields |
64 | myKind : KindOfInteractive from AIS is protected; |
65 | |
66 | end TypeFilter; |