7fd59977 |
1 | -- File: IFSelect_SelectControl.cdl |
2 | -- Created: Wed Feb 16 10:07:01 1994 |
3 | -- Author: Christian CAILLET |
4 | -- <cky@mastox> |
5 | ---Copyright: Matra Datavision 1994 |
6 | |
7 | |
8 | deferred class SelectControl from IFSelect inherits Selection |
9 | |
10 | ---Purpose : A SelectControl kind Selection works with two input Selections |
11 | -- in a dissymmetric way : the Main Input which gives an input |
12 | -- list of Entities, to be processed, and the Second Input which |
13 | -- gives another list, to be used to filter the main input. |
14 | -- |
15 | -- e.g. : SelectDiff retains the items of the Main Input which |
16 | -- are not in the Control Input (which acts as Diff Input) |
17 | -- or a specific selection which retains Entities from the Main |
18 | -- Input if and only if they are concerned by an entity from |
19 | -- the Control Input (such as Views in IGES, etc...) |
20 | -- |
21 | -- The way RootResult and Label are produced are at charge of |
22 | -- each sub-class |
23 | |
24 | uses SelectionIterator |
25 | |
26 | is |
27 | |
28 | MainInput (me) returns mutable Selection; |
29 | ---Purpose : Returns the Main Input Selection |
30 | |
31 | HasSecondInput (me) returns Boolean; |
32 | ---Purpose : Returns True if a Control Input is defined |
33 | -- Thus, Result can be computed differently if there is a |
34 | -- Control Input or if there is none |
35 | |
36 | SecondInput (me) returns mutable Selection; |
37 | ---Purpose : Returns the Control Input Selection, or a Null Handle |
38 | |
39 | SetMainInput (me : mutable; sel : mutable Selection); |
40 | ---Purpose : Sets a Selection to be the Main Input |
41 | |
42 | SetSecondInput (me : mutable; sel : mutable Selection); |
43 | ---Purpose : Sets a Selection to be the Control Input |
44 | |
45 | |
46 | -- RootResult,Label remain to be defined by each class of Selection |
47 | -- (also HasUniqueResult if it applies) |
48 | |
49 | FillIterator (me; iter : in out SelectionIterator); |
50 | ---Purpose : Puts in an Iterator the Selections from which "me" depends |
51 | -- That is to say, the list of Input Selections |
52 | |
53 | |
54 | fields |
55 | |
56 | themain : Selection; |
57 | thesecond : Selection; |
58 | |
59 | end SelectControl; |