blob: b81f9e2fcf1095ed83774a8f4c6c66e65919af12 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
/*
Wotonomy: OpenStep design patterns for pure Java applications.
Copyright (C) 2001 Intersect Software Corporation
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see http://www.gnu.org
*/
package net.wotonomy.ui;
import net.wotonomy.foundation.NSArray;
/**
* This master detail association synchronizes the contents and selection of the
* master group into the detail group.
*/
public class MirrorDetailAssociation extends MasterDetailAssociation {
/**
* Standard constructor specifying the detail display group.
*
* @param displayGroup the detail display group of this Master-Detail
* Association
*/
public MirrorDetailAssociation(EODisplayGroup displayGroup) {
super(displayGroup);
}
/**
* Called by subjectChanged() to requalify the controlled display group with the
* indexed object and the bound key. This implementation ignores both and sets
* the object array of the detail group to the displayed objects of the master
* and sets the selection to match.
*/
protected void requalify() {
EODisplayGroup detail = (EODisplayGroup) object();
EODisplayGroup master = displayGroupForAspect(ParentAspect);
if (master != null) {
NSArray masterObjects = master.displayedObjects();
NSArray detailObjects = detail.displayedObjects();
int size = masterObjects.size();
boolean different = false;
// see if lists contain the same object instances
if (size == detailObjects.size()) {
for (int i = 0; i < size; i++) {
if (masterObjects.objectAtIndex(i) != detailObjects.objectAtIndex(i)) {
different = true;
break;
}
}
} else // different sizes
{
different = true;
}
// if different, sync contents and selection with master
if (different) {
detail.setObjectArray(masterObjects);
detail.setSelectionIndexes(master.selectionIndexes());
} else // if selection changed, sync selection with master
if (master.selectionChanged()) {
detail.setSelectionIndexes(master.selectionIndexes());
}
} else // no bound display group, clear
{
detail.setObjectArray(null);
}
}
}
/*
* $Log$ Revision 1.1 2006/02/16 13:22:22 cgruber Check in all sources in
* eclipse-friendly maven-enabled packages.
*
* Revision 1.2 2001/07/05 22:13:28 mpowers Now only updating if master has
* actually changed.
*
* Revision 1.1 2001/05/29 19:57:47 mpowers Added some neglected files.
*
*
*/
|
