| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||||||
| MirrorDetailAssociation |
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| 4.0;4 |
| 1 | /* |
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| 2 | Wotonomy: OpenStep design patterns for pure Java applications. |
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| 3 | Copyright (C) 2001 Intersect Software Corporation |
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| 4 | ||
| 5 | This library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | ||
| 10 | This library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | ||
| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with this library; if not, see http://www.gnu.org |
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| 17 | */ |
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| 18 | ||
| 19 | package net.wotonomy.ui; |
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| 20 | import net.wotonomy.foundation.NSArray; |
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| 21 | ||
| 22 | /** |
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| 23 | * This master detail association synchronizes the contents |
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| 24 | * and selection of the master group into the detail group. |
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| 25 | */ |
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| 26 | public class MirrorDetailAssociation extends MasterDetailAssociation{ |
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| 27 | ||
| 28 | /** |
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| 29 | * Standard constructor specifying the detail display group. |
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| 30 | * @param displayGroup the detail display group of this |
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| 31 | * Master-Detail Association |
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| 32 | */ |
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| 33 | public MirrorDetailAssociation(EODisplayGroup displayGroup){ |
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| 34 | 0 | super(displayGroup); |
| 35 | 0 | } |
| 36 | ||
| 37 | /** |
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| 38 | * Called by subjectChanged() to requalify the controlled |
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| 39 | * display group with the indexed object and the bound key. |
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| 40 | * This implementation ignores both and sets the object array |
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| 41 | * of the detail group to the displayed objects of the master |
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| 42 | * and sets the selection to match. |
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| 43 | */ |
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| 44 | protected void requalify() |
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| 45 | { |
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| 46 | 0 | EODisplayGroup detail = (EODisplayGroup) object(); |
| 47 | 0 | EODisplayGroup master = |
| 48 | 0 | displayGroupForAspect( ParentAspect ); |
| 49 | ||
| 50 | 0 | if ( master != null ) |
| 51 | { |
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| 52 | 0 | NSArray masterObjects = master.displayedObjects(); |
| 53 | 0 | NSArray detailObjects = detail.displayedObjects(); |
| 54 | 0 | int size = masterObjects.size(); |
| 55 | 0 | boolean different = false; |
| 56 | ||
| 57 | // see if lists contain the same object instances |
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| 58 | 0 | if ( size == detailObjects.size() ) |
| 59 | { |
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| 60 | 0 | for ( int i = 0; i < size; i++ ) |
| 61 | { |
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| 62 | 0 | if ( masterObjects.objectAtIndex(i) |
| 63 | 0 | != detailObjects.objectAtIndex(i) ) |
| 64 | { |
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| 65 | 0 | different = true; |
| 66 | 0 | break; |
| 67 | } |
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| 68 | } |
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| 69 | 0 | } |
| 70 | else // different sizes |
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| 71 | { |
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| 72 | 0 | different = true; |
| 73 | } |
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| 74 | ||
| 75 | // if different, sync contents and selection with master |
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| 76 | 0 | if ( different ) |
| 77 | { |
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| 78 | 0 | detail.setObjectArray( masterObjects ); |
| 79 | 0 | detail.setSelectionIndexes( master.selectionIndexes() ); |
| 80 | 0 | } |
| 81 | else // if selection changed, sync selection with master |
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| 82 | 0 | if ( master.selectionChanged() ) |
| 83 | { |
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| 84 | 0 | detail.setSelectionIndexes( master.selectionIndexes() ); |
| 85 | } |
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| 86 | 0 | } |
| 87 | else // no bound display group, clear |
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| 88 | { |
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| 89 | 0 | detail.setObjectArray( null ); |
| 90 | } |
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| 91 | 0 | } |
| 92 | } |
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| 93 | /* |
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| 94 | * $Log$ |
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| 95 | * Revision 1.1 2006/02/16 13:22:22 cgruber |
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| 96 | * Check in all sources in eclipse-friendly maven-enabled packages. |
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| 97 | * |
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| 98 | * Revision 1.2 2001/07/05 22:13:28 mpowers |
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| 99 | * Now only updating if master has actually changed. |
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| 100 | * |
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| 101 | * Revision 1.1 2001/05/29 19:57:47 mpowers |
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| 102 | * Added some neglected files. |
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| 103 | * |
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| 104 | * |
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| 105 | */ |
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| 106 |