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1
6
7 package org.netbeans.modules.piagetproject.gridsplit;
8
9 import java.awt.Component  ;
10 import java.awt.Dimension ;
11 import java.util.ArrayList ;
12 import java.util.Collection ;
13
14
19 public class GridSplitModel {
20
21 private GridSplitCell root;
22 private ArrayList listeners = new ArrayList ();
23
24
25 public GridSplitModel( Component rootComp, Dimension preferredSize, double resizeWeight ) {
26 if( null != root ) {
27 throw new IllegalArgumentException ( "The hierarchy root is already set." );
28 }
29
30 root = new GridSplitCell( rootComp, resizeWeight, preferredSize );
31 }
32
33
36 public GridSplitCell getRootCell() {
37 return root;
38 }
39
40
43 public void addToRoot( Component compToAdd, int side ) {
44 addToRoot( compToAdd, side, 0.5 );
45 }
46
47
51 public void addToRoot( Component compToAdd, int side, double initialSize ) {
52 addToRoot( compToAdd, side, initialSize, 0.0 );
53 }
54
55
60 public void addToRoot( Component compToAdd, int side, double initialSize, double resizeWeight ) {
61 GridSplitCell newCell = root.addToSide( compToAdd, side, initialSize, resizeWeight );
62
63 fireCellAdded( newCell );
64 }
65
66
69 public void addToSide( Component neighbor, Component compToAdd, int side ) {
70 addToSide( neighbor, compToAdd, side, 0.5 );
71 }
72
73
77 public void addToSide( Component neighbor, Component compToAdd, int side, double initialSize ) {
78 addToSide( neighbor, compToAdd, side, initialSize, 0.0 );
79 }
80
81
86 public void addToSide( Component neighbor, Component compToAdd, int side, double initialSize, double resizeWeight ) {
87 GridSplitCell cell = findCellFor( neighbor );
88 if( null == cell ) {
89 throw new IllegalArgumentException ( "Component not in hierarchy: " + neighbor );
90 }
91
92 GridSplitCell newCell = cell.addToSide( compToAdd, side, initialSize, resizeWeight );
93
94 fireCellAdded( newCell );
95 }
96
97
101 public void remove( Component c ) {
102 GridSplitCell cell = findCellFor( c );
103 if( null == cell ) {
104 throw new IllegalArgumentException ( "Component not in hierarchy: " + c );
105 }
106
107 if( cell == root ) {
108 throw new IllegalArgumentException ( "Cannot remove the root cell" );
110 }
111
112 cell.getParent().remove( cell );
113
114 fireCellRemoved( cell );
115 }
116
117
122 public void setHidden( Component c, boolean hidden ) {
123 GridSplitCell cell = findCellFor( c );
124 if( null == cell ) {
125 throw new IllegalArgumentException ( "Component not in hierarchy: " + c );
126 }
127
128 if( cell.isHidden() == hidden )
129 return;
130
131 GridSplitCell oldValue = new GridSplitCell( cell );
132
133 cell.setHidden( hidden );
134
135 fireCellModified( oldValue, cell );
136 }
137
138
141 public boolean isHidden( Component c ) {
142 GridSplitCell cell = findCellFor( c );
143 if( null == cell ) {
144 throw new IllegalArgumentException ( "Component not in hierarchy: " + c );
145 }
146
147 return cell.isHidden();
148 }
149
150 public void addChangeListener( GridSplitModelListener listener ) {
151 synchronized( listeners ) {
152 listeners.add( listener );
153 }
154 }
155
156 public void removeChangeListener( GridSplitModelListener listener ) {
157 synchronized( listeners ) {
158 listeners.remove( listener );
159 }
160 }
161
162 void fireCellAdded( GridSplitCell cell ) {
163 GridSplitModelListener[] arr;
164 synchronized( listeners ) {
165 arr = new GridSplitModelListener[listeners.size()];
166 listeners.toArray( arr );
167 }
168 for( int i=0; i<arr.length; i++ ) {
169 arr[i].cellAdded( cell );
170 }
171 }
172
173 void fireCellRemoved( GridSplitCell cell ) {
174 GridSplitModelListener[] arr;
175 synchronized( listeners ) {
176 arr = new GridSplitModelListener[listeners.size()];
177 listeners.toArray( arr );
178 }
179 for( int i=0; i<arr.length; i++ ) {
180 arr[i].cellRemoved( cell );
181 }
182 }
183
184 void fireCellModified( GridSplitCell oldCell, GridSplitCell newCell ) {
185 GridSplitModelListener[] arr;
186 synchronized( listeners ) {
187 arr = new GridSplitModelListener[listeners.size()];
188 listeners.toArray( arr );
189 }
190 for( int i=0; i<arr.length; i++ ) {
191 arr[i].cellModified( oldCell, newCell );
192 }
193 }
194
195 GridSplitCell findCellFor( Component c ) {
196 if( null == root )
197 return null;
198 return findCell( root, c );
199 }
200
201
204 Collection getComponents() {
205 ArrayList res = new ArrayList ();
206 collectComponents( getRootCell(), res );
207 return res;
208 }
209
210 private void collectComponents( GridSplitCell cell, Collection components ) {
211 if( cell.isSplit() ) {
212 for( int i=0; i<cell.count(); i++ ) {
213 collectComponents( cell.cellAt( i ), components );
214 }
215 } else {
216 components.add( cell.getComponent() );
217 }
218 }
219
220 private static GridSplitCell findCell( GridSplitCell cell, Component c ) {
221 if( cell.isSplit() ) {
222 for( int i=0; i<cell.count(); i++ ) {
223 GridSplitCell child = cell.cellAt( i );
224 GridSplitCell res = findCell( child, c );
225 if( null != res )
226 return res;
227 }
228 return null;
229 } else {
230 if( c == cell.getComponent() )
231 return cell;
232 }
233 return null;
234 }
235 }
236 |
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