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1
15 package org.apache.tapestry.contrib.tree.components.table;
16
17 import java.util.ArrayList  ;
18 import java.util.Iterator ;
19 import java.util.List ;
20
21 import org.apache.tapestry.BaseComponent;
22 import org.apache.tapestry.IMarkupWriter;
23 import org.apache.tapestry.IRequestCycle;
24 import org.apache.tapestry.contrib.table.model.ITableColumn;
25 import org.apache.tapestry.contrib.table.model.ITableModel;
26 import org.apache.tapestry.contrib.table.model.ITableSessionStateManager;
27 import org.apache.tapestry.contrib.table.model.simple.SimpleListTableDataModel;
28 import org.apache.tapestry.contrib.table.model.simple.SimpleTableColumnModel;
29 import org.apache.tapestry.contrib.table.model.simple.SimpleTableModel;
30 import org.apache.tapestry.contrib.table.model.simple.SimpleTableSessionStateManager;
31 import org.apache.tapestry.contrib.tree.model.ITreeDataModel;
32 import org.apache.tapestry.contrib.tree.model.ITreeModel;
33 import org.apache.tapestry.contrib.tree.model.ITreeModelSource;
34 import org.apache.tapestry.contrib.tree.model.ITreeRowSource;
35 import org.apache.tapestry.contrib.tree.model.TreeRowObject;
36 import org.apache.tapestry.event.PageDetachListener;
37 import org.apache.tapestry.event.PageEvent;
38
39
41 public abstract class TreeTableDataView extends BaseComponent implements ITreeRowSource,
42 PageDetachListener
43 {
44 private int m_nTreeDeep = -1;
45
46 private TreeRowObject m_objTreeRowObject = null;
47
48 private ArrayList m_arrAllExpandedNodes = null;
49
50 public TreeTableDataView()
51 {
52 super();
53 initialize();
54 }
55
56 public void initialize()
57 {
58 m_nTreeDeep = -1;
59 m_objTreeRowObject = null;
61 m_arrAllExpandedNodes = null;
62 }
63
64
67 public void pageDetached(PageEvent event)
68 {
69 initialize();
70 }
71
72 public abstract ITreeModelSource getTreeViewParameter();
73
74 public ITreeModelSource getTreeModelSource()
75 {
76 ITreeModelSource objSource = (ITreeModelSource) getPage().getRequestCycle().getAttribute(
77 ITreeModelSource.TREE_MODEL_SOURCE_ATTRIBUTE);
78
79 return objSource == null ? getTreeViewParameter() : objSource;
80 }
81
82 public ArrayList generateNodeList()
83 {
84 if (m_arrAllExpandedNodes == null)
85 {
86 ArrayList arrAllExpandedNodes = new ArrayList ();
87
88 ITreeModelSource objTreeModelSource = getTreeModelSource();
90 ITreeModel objTreeModel = objTreeModelSource.getTreeModel();
91 ITreeDataModel objTreeDataModel = objTreeModel.getTreeDataModel();
92
93 Object objRoot = objTreeDataModel.getRoot();
94 Object objRootUID = objTreeDataModel.getUniqueKey(objRoot, null);
95 if (getShowRootNode())
96 {
97 walkTree(
98 arrAllExpandedNodes,
99 objRoot,
100 objRootUID,
101 0,
102 objTreeModel,
103 TreeRowObject.FIRST_LAST_ROW,
104 new int[0],
105 true);
106 }
107 else
108 {
109 int nChildenCount = objTreeModel.getTreeDataModel().getChildCount(objRoot);
110 int nRowPossiotionType = nChildenCount == 1 ? TreeRowObject.FIRST_LAST_ROW
111 : TreeRowObject.FIRST_ROW;
112 boolean bFirst = true;
113 for (Iterator iter = objTreeModel.getTreeDataModel().getChildren(objRoot); iter
114 .hasNext();)
115 {
116 Object objChild = iter.next();
117 Object objChildUID = objTreeModel.getTreeDataModel().getUniqueKey(
118 objChild,
119 objRoot);
120 boolean bChildLast = !iter.hasNext();
121 if (!bFirst)
122 {
123 if (bChildLast)
124 nRowPossiotionType = TreeRowObject.LAST_ROW;
125 else
126 nRowPossiotionType = TreeRowObject.MIDDLE_ROW;
127 }
128 walkTree(
129 arrAllExpandedNodes,
130 objChild,
131 objChildUID,
132 0,
133 objTreeModel,
134 nRowPossiotionType,
135 new int[0],
136 bChildLast);
137 bFirst = false;
138 }
139 }
140
141 m_arrAllExpandedNodes = arrAllExpandedNodes;
142 }
143
144 return m_arrAllExpandedNodes;
145 }
146
147 public void walkTree(ArrayList arrAllExpandedNodes, Object objParent, Object objParentUID,
148 int nDepth, ITreeModel objTreeModel, int nRowPossiotionType, int[] arrConnectImages,
149 boolean bLast)
150 {
151 m_nTreeDeep = nDepth;
152
153 int nNumberOfChildren = objTreeModel.getTreeDataModel().getChildCount(objParent);
154 boolean bLeaf = (nNumberOfChildren == 0) ? true : false;
155 TreeRowObject objTreeRowObject = new TreeRowObject(objParent, objParentUID, nDepth, bLeaf,
156 nRowPossiotionType, arrConnectImages);
157 arrAllExpandedNodes.add(objTreeRowObject);
158
159 boolean bContain = objTreeModel.getTreeStateModel().isUniqueKeyExpanded(objParentUID);
160 if (bContain)
161 {
162 int[] arrConnectImagesNew = new int[arrConnectImages.length + 1];
163 System.arraycopy(arrConnectImages, 0, arrConnectImagesNew, 0, arrConnectImages.length);
164 if (bLast)
165 arrConnectImagesNew[arrConnectImagesNew.length - 1] = TreeRowObject.EMPTY_CONN_IMG;
166 else
167 arrConnectImagesNew[arrConnectImagesNew.length - 1] = TreeRowObject.LINE_CONN_IMG;
168 Iterator colChildren = objTreeModel.getTreeDataModel().getChildren(objParent);
169 for (Iterator iter = colChildren; iter.hasNext();)
170 {
171 Object objChild = iter.next();
172 Object objChildUID = objTreeModel.getTreeDataModel().getUniqueKey(
173 objChild,
174 objParentUID);
175 boolean bChildLast = !iter.hasNext();
176 if (bChildLast)
177 nRowPossiotionType = TreeRowObject.LAST_ROW;
178 else
179 nRowPossiotionType = TreeRowObject.MIDDLE_ROW;
180 walkTree(
181 arrAllExpandedNodes,
182 objChild,
183 objChildUID,
184 nDepth + 1,
185 objTreeModel,
186 nRowPossiotionType,
187 arrConnectImagesNew,
188 bChildLast);
189 }
190 }
191 }
192
193
198 public int getTreeDeep()
199 {
200 return m_nTreeDeep;
201 }
202
203
207 public ITableModel getTableModel()
208 {
209 return createTableModel();
210 }
211
212 private ITableModel createTableModel()
213 {
214 ArrayList arrAllNodes = generateNodeList();
215 Object [] arrAllExpandedNodes = new Object [arrAllNodes.size()];
216 arrAllNodes.toArray(arrAllExpandedNodes);
217
218 SimpleTableModel objTableModel = new SimpleTableModel(arrAllExpandedNodes,
219 getTableColunms());
220 objTableModel.getPagingState().setPageSize(getEntriesPerTablePage());
221
222 return objTableModel;
223 }
224
225 public ITableColumn[] getTableColunms()
226 {
227 ArrayList arrColumnsList = new ArrayList ();
228 arrColumnsList.add(new TreeTableColumn("Name", false, null));
229
230 List arrTableColunms = getTableColumnsParameter();
231 if (arrTableColunms != null)
232 arrColumnsList.addAll(arrTableColunms);
233
234 ITableColumn[] arrColumns = new ITableColumn[arrColumnsList.size()];
235 arrColumnsList.toArray(arrColumns);
236
237 return arrColumns;
238 }
239
240 public abstract List getTableColumnsParameter();
241
242 public abstract int getEntriesPerTablePage();
243
244
247 public TreeRowObject getTreeRow()
248 {
249 return getTreeRowObject();
250 }
251
252 public ITableSessionStateManager getTableSessionStateManager()
253 {
254 SimpleListTableDataModel objDataModel = new SimpleListTableDataModel(generateNodeList());
255 SimpleTableColumnModel objColumnModel = new SimpleTableColumnModel(getTableColunms());
256 SimpleTableSessionStateManager objStateManager = new SimpleTableSessionStateManager(
257 objDataModel, objColumnModel);
258 return objStateManager;
259 }
261
262
266 protected void renderComponent(IMarkupWriter arg0, IRequestCycle cycle)
267 {
268 Object objExistedTreeModelSource = cycle
269 .getAttribute(ITreeRowSource.TREE_ROW_SOURCE_ATTRIBUTE);
270 cycle.setAttribute(ITreeRowSource.TREE_ROW_SOURCE_ATTRIBUTE, this);
271
272 super.renderComponent(arg0, cycle);
273
274 cycle.setAttribute(ITreeRowSource.TREE_ROW_SOURCE_ATTRIBUTE, objExistedTreeModelSource);
275 }
276
277
281 public void renderBody(IMarkupWriter writer, IRequestCycle cycle)
282 {
283 Object objExistedTreeModelSource = cycle
284 .getAttribute(ITreeRowSource.TREE_ROW_SOURCE_ATTRIBUTE);
285 cycle.setAttribute(ITreeRowSource.TREE_ROW_SOURCE_ATTRIBUTE, this);
286
287 super.renderBody(writer, cycle);
288
289 cycle.setAttribute(ITreeRowSource.TREE_ROW_SOURCE_ATTRIBUTE, objExistedTreeModelSource);
290 }
291
292 public TreeRowObject getTreeRowObject()
293 {
294 return m_objTreeRowObject;
295 }
296
297 public void setTreeRowObject(TreeRowObject object)
298 {
299 m_objTreeRowObject = object;
300 }
301
302 public abstract boolean getShowRootNode();
303 } |
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