??1 package ?jcx.jform.bfc;
??2
??3 import ?java.awt.BorderLayout;
??4 import ?java.awt.GridLayout;
??5
??6 import ?java.awt.Toolkit;
??7
??8 import ?javax.swing.JComponent;
??9 import ?javax.swing.JPanel;
?10
?11 import ?javax.swing.JScrollPane;
?12
?13 import ?javax.swing.JTree;
?14
?15 import ?javax.swing.tree.DefaultMutableTreeNode;
?16
?17 import ?javax.swing.tree.DefaultTreeModel;
?18
?19 import ?javax.swing.tree.MutableTreeNode;
?20
?21 import ?javax.swing.tree.TreePath;
?22
?23 import ?javax.swing.tree.TreeSelectionModel;
?24
?25 // import?javax.swing.event.TreeModelEvent;
?26 // import?javax.swing.event.TreeModelListener;
?27 import ?javax.swing.event.TreeSelectionEvent;
?28 import ?javax.swing.event.TreeSelectionListener;
?29 import ?jcx.jform.bdisplay;
?30 import ?java.util.Enumeration;
?31
?32 // import?java.lang.reflect.Method;
?33
?34 /**?*/ /**
?35 ?*?<code>DynTree</code>是用來在EMaker中生成內嵌的Tree的類。<br>
?36 ?*?
?37 ?*? @version ?1.0
?38 ?*? @author ?Bernie(Hongbin)?Yoo
?39 ?*?
?40 ? */
?41 public ? class ?DynTree? extends ?JPanel? implements ?java.awt.event.ActionListener? {
?42 ???? /**?*/ /** ?根節點。? */
?43 ???? public ?DefaultMutableTreeNode?rootNode;
?44
?45 ???? /**?*/ /** ?當前選擇的節點。? */
?46 ???? public ?DefaultMutableTreeNode?selectionNode;
?47
?48 ???? /**?*/ /** ?上一次選擇的節點，用于取消選擇節點時使用。? */
?49 ???? private ?DefaultMutableTreeNode?preSelectionNode;
?50
?51 ???? /**?*/ /** ?Tree?Model? */
?52 ???? protected ?DefaultTreeModel?treeModel;
?53
?54 ???? protected ?JTree?tree;
?55
?56 ???? private ?Toolkit?toolkit? = ?Toolkit.getDefaultToolkit();
?57
?58 ???? /**?*/ /** ?<code>jcx.jform.bdisplay</code>,Emaker中Tree的容器。? */
?59 ???? protected ?bdisplay?bdis;
?60
?61 ???? /**?*/ /**
?62 ?????*?靜態自調用函數，可在未定義類實例時使用，返回為一個<code>DynTree</code>實例。
?63 ?????*?
?64 ?????*? @param ?bd
?65 ?????*????????????<code>jcx.jform.bdisplay</code>,Emaker中<code>DynTree</code>的容器。
?66 ?????*? @param ?root
?67 ?????*????????????根節點名稱。
?68 ?????*? @param ?rootVisible
?69 ?????*????????????根節點是否可見。
?70 ?????*? @return ?一個<code>DynTree</code>類的實例。
?71 ????? */
?72 ???? public ? static ?Object?init(bdisplay?bd,?String?root,? boolean ?rootVisible)? {
?73
?74 ???????? return ? new ?DynTree(bd,?root,?rootVisible);
?75 ????}
?76
?77 ???? /**?*/ /**
?78 ?????*?<code>DynTree</code>的構造函數。
?79 ?????*?
?80 ?????*? @param ?bd
?81 ?????*????????????<code>jcx.jform.bdisplay</code>,Emaker中<code>DynTree</code>的容器。
?82 ?????*? @param ?root
?83 ?????*????????????根節點名稱。
?84 ?????*? @param ?rootVisible
?85 ?????*????????????根節點是否可見。
?86 ????? */
?87 ???? public ?DynTree(bdisplay?bd,?String?root,? boolean ?rootVisible)? {
?88 ????????bdis? = ?bd;
?89 ????????JPanel?pan? = ? new ?JPanel( new ?GridLayout( 1 ,? 1 ));
?90 ????????JComponent?base? = ?bdis.getLabel();
?91 ????????base.setLayout( new ?BorderLayout());
?92
?93 ????????rootNode? = ? new ?DefaultMutableTreeNode(root);
?94 ????????treeModel? = ? new ?DefaultTreeModel(rootNode);
?95
?96 ????????tree? = ? new ?JTree(treeModel);
?97 ????????tree.addTreeSelectionListener( new ?MyTreeSelectionListener());
?98 ????????tree.setEditable( false );
?99 ????????tree.getSelectionModel().setSelectionMode(
100 ????????????????TreeSelectionModel.SINGLE_TREE_SELECTION);
101 ????????tree.setShowsRootHandles( true );
102 ????????tree.setRootVisible(rootVisible);
103 ????????JScrollPane?scrollPane? = ? new ?JScrollPane(tree);
104 ????????pan.add(scrollPane);
105 ????????base.add(pan,?BorderLayout.CENTER);
106 ????}
107
108 ???? /**?*/ /**
109 ?????*?(non-Javadoc)
110 ?????*?
111 ?????*? @see ?java.awt.event.ActionListener#actionPerformed(java.awt.event.ActionEvent)
112 ????? */
113 ???? public ? void ?actionPerformed(java.awt.event.ActionEvent?e)? {
114
115 ????}
116
117 ???? /**?*/ /** ?移除根節點以外所有節點。? */
118 ???? public ? void ?clear()? {
119 ????????rootNode.removeAllChildren();
120 ????????treeModel.reload();
121 ????}
122
123 ???? /**?*/ /** ?移除當前選中的節點。? */
124
125 ???? public ? void ?removeCurrentNode()? {
126
127 ????????TreePath?currentSelection? = ?tree.getSelectionPath();
128
129 ???????? if ?(currentSelection? != ? null )? {
130 ????????????DefaultMutableTreeNode?currentNode? = ?(DefaultMutableTreeNode)?(currentSelection
131 ????????????????????.getLastPathComponent());
132
133 ????????????MutableTreeNode?parent? = ?(MutableTreeNode)?(currentNode.getParent());
134
135 ???????????? if ?(parent? != ? null )? {
136 ????????????????treeModel.removeNodeFromParent(currentNode);
137 ???????????????? return ;
138 ????????????}
139 ????????}
140 ????????toolkit.beep();
141 ????}
142
143 ???? /**?*/ /**
144 ?????*?添加子節點到當前選擇的節點下。
145 ?????*?
146 ?????*? @param ?itemID
147 ?????*????????????子節點的ItemID。
148 ?????*? @param ?itemName
149 ?????*????????????子節點的ItemName。
150 ?????*? @param ?itemNumber
151 ?????*????????????子節點的ItemNumber。
152 ?????*? @return ?新增加的子節點。
153 ????? */
154 ???? public ?DefaultMutableTreeNode?addObject( int ?itemID,?String?itemName,
155 ????????????String?itemNumber)? {
156
157 ????????DefaultMutableTreeNode?parentNode? = ? null ;
158 ????????TreePath?parentPath? = ?tree.getSelectionPath();
159
160 ???????? if ?(parentPath? == ? null )? {
161 ????????????parentNode? = ?rootNode;
162 ????????} ? else ? {
163 ????????????parentNode? = ?(DefaultMutableTreeNode)?(parentPath
164 ????????????????????.getLastPathComponent());
165 ????????}
166 ???????? return ?addObject(parentNode,?itemID,?itemName,?itemNumber,? true );
167 ????}
168
169 ???? /**?*/ /**
170 ?????*?添加子節點到當前選擇的節點下。
171 ?????*?
172 ?????*? @param ?parent
173 ?????*????????????父節點。
174 ?????*? @param ?itemID
175 ?????*????????????子節點的ItemID。
176 ?????*? @param ?itemName
177 ?????*????????????子節點的ItemName。
178 ?????*? @param ?itemNumber
179 ?????*????????????子節點的ItemNumber。
180 ?????*? @return ?新增加的子節點。
181 ????? */
182 ???? public ?DefaultMutableTreeNode?addObject(DefaultMutableTreeNode?parent,
183 ???????????? int ?itemID,?String?itemName,?String?itemNumber)? {
184 ???????? return ?addObject(parent,?itemID,?itemName,?itemNumber,? true );
185 ????}
186
187 ???? /**?*/ /**
188 ?????*?添加子節點到當前選擇的節點下。
189 ?????*?
190 ?????*? @param ?parent
191 ?????*????????????父節點。
192 ?????*? @param ?itemID
193 ?????*????????????子節點的ItemID。
194 ?????*? @param ?itemName
195 ?????*????????????子節點的ItemName。
196 ?????*? @param ?itemNumber
197 ?????*????????????子節點的ItemNumber。
198 ?????*? @param ?shouldBeVisible
199 ?????*????????????新增節點是否自動展開。
200 ?????*? @return ?新增加的子節點。
201 ????? */
202 ???? public ?DefaultMutableTreeNode?addObject(DefaultMutableTreeNode?parent,
203 ???????????? int ?itemID,?String?itemName,?String?itemNumber,
204 ???????????? boolean ?shouldBeVisible)? {
205 ????????ItemInfo?child? = ? new ?ItemInfo(itemID,?itemName,?itemNumber);
206 ????????DefaultMutableTreeNode?childNode? = ? new ?DefaultMutableTreeNode(child);
207
208 ???????? if ?(parent? == ? null )? {
209 ????????????parent? = ?rootNode;
210 ????????}
211
212 ????????treeModel.insertNodeInto(childNode,?parent,?parent.getChildCount());
213
214 ???????? // ?Make?sure?the?user?can?see?the?lovely?new?node.
215 ???????? if ?(shouldBeVisible)? {
216 ????????????tree.scrollPathToVisible( new ?TreePath(childNode.getPath()));
217 ????????}
218 ???????? // ?tree.setSelectionPath(new?TreePath(childNode.getPath()));
219 ???????? return ?childNode;
220 ????}
221
222 ???? /**?*/ /**
223 ?????*?得到當前選中的節點。
224 ????? */
225 ???? public ?DefaultMutableTreeNode?getSelectedNode()? {
226 ???????? return ?(DefaultMutableTreeNode)?tree.getSelectionPath()
227 ????????????????.getLastPathComponent();
228 ????}
229 ???? /**?*/ /**
230 ?????*?得到指定的節點。
231 ?????*? @param ?itemID?欲獲取節點的ItemID值。
232 ?????*? @return ?????指定的節點。若不存在則返回null。
233 ????? */
234 ???? public ?DefaultMutableTreeNode?getNode( int ?itemID)? {
235 ????????ItemInfo?nodItem;
236
237 ???????? for ?(Enumeration?e? = ?rootNode.depthFirstEnumeration();?e
238 ????????????????.hasMoreElements();)? {
239 ????????????DefaultMutableTreeNode?x? = ?(DefaultMutableTreeNode)?(e
240 ????????????????????.nextElement());
241 ????????????nodItem? = ?(ItemInfo)?(x.getUserObject());
242 ???????????? if ?(nodItem.itemID? == ?itemID)? {
243 ???????????????? return ?x;
244 ????????????}
245 ????????}
246 ???????? return ? null ;
247 ????}
248 ???? /**?*/ /**
249 ?????*?得到指定的節點。
250 ?????*? @param ?itemNumber?欲獲取節點的ItemNumber值。
251 ?????*? @return ????指定的節點。若不存在則返回null。
252 ????? */
253 ???? public ?DefaultMutableTreeNode?getNode(String?itemNumber)? {
254 ????????ItemInfo?nodItem;
255 ???????? for ?(Enumeration?e? = ?rootNode.depthFirstEnumeration();?e
256 ????????????????.hasMoreElements();)? {
257 ????????????DefaultMutableTreeNode?x? = ?(DefaultMutableTreeNode)?(e
258 ????????????????????.nextElement());
259 ????????????nodItem? = ?(ItemInfo)?(x.getUserObject());
260 ???????????? if ?(nodItem.itemNumber.equals(itemNumber))? {
261 ???????????????? return ?x;
262 ????????????}
263 ????????}
264 ???????? return ? null ;
265 ????}
266 ???? /**?*/ /**
267 ?????*?節點改變時的處理,未實際實現，在Emaker中由繼承類實現。
268 ?????*? @param ?node?選中的節點。
269 ?????*? @param ?itemID?選中節點的ItemID。
270 ?????*? @param ?itemName?選中節點的ItemName。
271 ?????*? @param ?itemNumber?選中節點的ItemNumber。
272 ????? */
273 ???? public ? void ?chgAction(DefaultMutableTreeNode?node,? int ?itemID,
274 ????????????String?itemName,?String?itemNumber)? {
275 ???????? // ?未實現,由其繼承類實現
276 ????}
277 ???? /**?*/ /**
278 ?????*?取消選擇，返回之前的選擇對象，配合<code>chgAction</code>使用。
279 ?????*
280 ????? */
281 ???? public ? void ?cancelChanged()? {
282 ????????tree.setSelectionPath( new ?TreePath(preSelectionNode.getPath()));
283 ????}
284 ???? /**?*/ /**
285 ?????*?節點上的自定義對象，實現對節點的ItemID\ItemName\ItemNumber的管理。
286 ?????*? @author ?Bernie(Hongbin)?Yoo
287 ?????*? @version ?1.0
288 ????? */
289 ???? private ? class ?ItemInfo? {
290 ???????? public ? int ?itemID;
291
292 ???????? public ?String?itemName;
293
294 ???????? public ?String?itemNumber;
295 ????????
296 ???????? /**?*/ /**
297 ?????????*?構造函數
298 ?????????*? @param ?itemID?ItemID.
299 ?????????*? @param ?itemName?ItemName.
300 ?????????*? @param ?itemNumber?ItemNumber.
301 ????????? */
302 ???????? public ?ItemInfo( int ?itemID,?String?itemName,?String?itemNumber)? {
303
304 ???????????? this .itemName? = ?itemName;
305 ???????????? this .itemID? = ?itemID;
306 ???????????? this .itemNumber? = ?itemNumber;
307 ????????}
308 ???????? /**/ /*
309 ?????????*?(non-Javadoc)
310 ?????????*?@see?java.lang.Object#toString()
311 ????????? */
312 ????????
313 ???????? public ?String?toString()? {
314 ???????????? return ?itemName;
315 ????????}
316 ????}
317 ???? /**?*/ /**
318 ?????*?實現監聽節點選擇改變的接口
319 ?????*? @author ?Bernie(Hongbin)?Yoo
320 ?????*
321 ????? */
322 ????
323 ???? class ?MyTreeSelectionListener? implements ?TreeSelectionListener? {
324 ???????? public ? void ?valueChanged(TreeSelectionEvent?e)? {
325
326 ????????????DefaultMutableTreeNode?node? = ?(DefaultMutableTreeNode)?(e.getPath()
327 ????????????????????.getLastPathComponent());
328 ???????????? if ?(node? == ? null )
329 ???????????????? return ;
330 ???????????? if ?( ! node.equals(selectionNode))? {
331 ????????????????preSelectionNode? = ?selectionNode;
332 ????????????????selectionNode? = ?node;
333 ???????????????? if ?(node.equals(rootNode))? {
334 ????????????????????chgAction(node,? - 1 ,?node.toString(),? "" );
335 ????????????????} ? else ? {
336 ????????????????????ItemInfo?it? = ?(ItemInfo)?(node.getUserObject());
337 ????????????????????chgAction(node,?it.itemID,?it.itemName,?it.itemNumber);
338 ????????????????}
339 ????????????}
340 ????????}
341 ????}
342 }
343