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1 package org.hibernate.eclipse.console.views;
2
3
4 import java.util.ArrayList  ;
5 import java.util.Collection ;
6 import java.util.Collections ;
7 import java.util.HashSet ;
8 import java.util.Iterator ;
9 import java.util.List ;
10 import java.util.Set ;
11
12 import javax.swing.event.ListDataEvent ;
13 import javax.swing.event.ListDataListener ;
14
15 import org.eclipse.jface.viewers.ISelection;
16 import org.eclipse.jface.viewers.ISelectionChangedListener;
17 import org.eclipse.jface.viewers.ISelectionProvider;
18 import org.eclipse.jface.viewers.IStructuredSelection;
19 import org.eclipse.jface.viewers.SelectionChangedEvent;
20 import org.eclipse.jface.viewers.StructuredSelection;
21 import org.eclipse.swt.SWT;
22 import org.eclipse.swt.events.DisposeEvent;
23 import org.eclipse.swt.events.DisposeListener;
24 import org.eclipse.swt.events.SelectionAdapter;
25 import org.eclipse.swt.events.SelectionEvent;
26 import org.eclipse.swt.widgets.Composite;
27 import org.eclipse.swt.widgets.TabFolder;
28 import org.eclipse.swt.widgets.TabItem;
29 import org.eclipse.ui.IActionBars;
30 import org.eclipse.ui.part.ViewPart;
31 import org.eclipse.ui.views.properties.IPropertySheetPage;
32 import org.eclipse.ui.views.properties.PropertySheetPage;
33 import org.hibernate.console.KnownConfigurations;
34 import org.hibernate.console.QueryPage;
35 import org.hibernate.eclipse.console.views.properties.HibernatePropertyHelper;
36 import org.hibernate.eclipse.console.views.properties.HibernatePropertySourceProvider;
37
38
39
40
42
43 public class QueryPageTabView extends ViewPart implements ISelectionProvider {
44 protected TabFolder tabs = null;
45
46 private Set listeners = Collections.synchronizedSet(new HashSet ());
47
48 protected List pageViewers = Collections.synchronizedList(new ArrayList ());
49
50 ListDataListener dataListener = new ListDataListener () {
51 public void contentsChanged(ListDataEvent e) {
52 rebuild();
53
54 }
55
56 public void intervalAdded(ListDataEvent e) {
57 contentsChanged(e);
58
59 }
60
61 public void intervalRemoved(ListDataEvent e) {
62 contentsChanged(e);
63
64 }
65 };
66
67 private QueryPageTabViewActionGroup actionGroup;
68
69
72 public QueryPageTabView() {
73 KnownConfigurations.getInstance().getQueryPageModel().addListDataListener(dataListener);
74 }
75
76
77 protected void rebuild() {
78 QueryPage selection = getSelectedQueryPage();
79
80 Collection additions = getAddedResultSets();
81 for (Iterator i = additions.iterator(); i.hasNext();) {
82 QueryPage results = (QueryPage) i.next();
83 this.pageViewers.add(new QueryPageViewer(this, results));
84 }
85
86 Collection deletions = getRemovedResultSets();
87 for (Iterator i = deletions.iterator(); i.hasNext();) {
88 QueryPage results = (QueryPage) i.next();
89
90 QueryPageViewer viewer = findViewerFor(results);
91 this.pageViewers.remove(viewer);
92 viewer.dispose();
93 }
94
95 QueryPage newSelection = getSelectedQueryPage();
98 if (selection != null && newSelection == null) {
99 fireSelectionChangedEvent();
100 } else if (selection == null && newSelection != null) {
101 fireSelectionChangedEvent();
102 } else if (selection != null && !selection.equals(newSelection)) {
103 fireSelectionChangedEvent();
104 }
105 }
106
107
108 public void setFocus() {
109 }
110
111 public void dispose() {
112 KnownConfigurations.getInstance().getQueryPageModel().removeListDataListener(dataListener);
113 super.dispose();
114 }
115
116 public void createPartControl(Composite parent) {
117 this.tabs = new TabFolder(parent, SWT.NONE);
118 tabs.addDisposeListener(new DisposeListener() {
119 public void widgetDisposed(DisposeEvent e) {
120 System.err.println("should not happen!");
121
122 }
123 });
124 this.tabs.addSelectionListener(new SelectionAdapter() {
125 public void widgetSelected(SelectionEvent event) {
126 fireSelectionChangedEvent();
127 }
128 });
129
130 rebuild();
131
132 initActions();
133 provideSelection();
134 }
135
136 private void provideSelection() {
137 getSite().setSelectionProvider(this);
138 }
139
140 public void initActions() {
141
142 this.actionGroup = new QueryPageTabViewActionGroup(this,this);
143
144 IActionBars actionBars = getViewSite().getActionBars();
145 this.actionGroup.fillActionBars(actionBars);
146 }
147
148 public void fireSelectionChangedEvent(ISelection selection) {
149 for (Iterator i = this.listeners.iterator(); i.hasNext();) {
150 ISelectionChangedListener listener = (ISelectionChangedListener) i.next();
151 listener.selectionChanged(new SelectionChangedEvent(this, selection));
152 }
153
154
160 }
161
162
163 protected void fireSelectionChangedEvent() {
164 ISelection selection = getSelection();
165 fireSelectionChangedEvent(selection);
166 }
167
168 public Object getAdapter(Class adapter) {
169
170 if (adapter.equals(IPropertySheetPage.class))
171 {
172 PropertySheetPage page = new PropertySheetPage();
173 page.setPropertySourceProvider(new HibernatePropertySourceProvider(this));
174 return page;
175 }
176 return super.getAdapter(adapter);
177 }
178
179 public ISelection getSelection() {
180 QueryPage selection = getSelectedQueryPage();
181
182 return selection == null
183 ? new StructuredSelection()
184 : new StructuredSelection(selection);
185 }
186
187
190 public QueryPage getSelectedQueryPage() {
191 QueryPageViewer viewer = getSelectedQueryPageViewer();
192 return viewer == null ? null : viewer.getQueryPage();
193 }
194
195 protected QueryPageViewer getSelectedQueryPageViewer() {
196 QueryPageViewer selection = null;
197 if(this.tabs.isDisposed()) {
198 return selection;
199 } else {
200 int index = this.tabs.getSelectionIndex();
201 if (index >= 0) {
202 TabItem item = this.tabs.getItem(index);
203 for (Iterator i = this.pageViewers.iterator();
204 selection == null && i.hasNext();) {
205 QueryPageViewer viewer = (QueryPageViewer) i.next();
206 if (item == viewer.getTabItem()) {
207 selection = viewer;
208 }
209 }
210 }
211 }
212 return selection;
213 }
214
215
216
217
220 private Collection getRemovedResultSets() {
221 Collection collection = KnownConfigurations.getInstance().getQueryPageModel().getPagesAsList();
222 Collection visible = getQueryPages();
223 visible.removeAll(collection);
224 return visible;
225 }
226
227 private Collection getAddedResultSets() {
228 Collection collection = KnownConfigurations.getInstance().getQueryPageModel().getPagesAsList();
229 collection.removeAll(getQueryPages());
230 return collection;
231 }
232
233 private Collection getQueryPages() {
234 List list = new ArrayList ();
235 for (Iterator i = this.pageViewers.iterator(); i.hasNext();) {
236 QueryPageViewer viewer = (QueryPageViewer) i.next();
237 list.add(viewer.getQueryPage());
238 }
239 return list;
240 }
241
242 private QueryPageViewer findViewerFor(QueryPage results) {
243 QueryPageViewer viewer = null;
244 for (Iterator i = this.pageViewers.iterator(); viewer == null && i.hasNext();) {
245 QueryPageViewer temp = (QueryPageViewer) i.next();
246 if (results != null && results.equals(temp.getQueryPage())) {
247 viewer = temp;
248 }
249 }
250 return viewer;
251 }
252
253 public void addSelectionChangedListener(ISelectionChangedListener listener) {
254 this.listeners.add(listener);
255 }
256
257 public void removeSelectionChangedListener(ISelectionChangedListener listener) {
258 this.listeners.remove(listener);
259 }
260
261
262 public void setSelection(ISelection selection) {
263 System.out.println("Told to select " + selection);
264 }
265
266
267
268
269 } |
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