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1
11 package org.eclipse.ant.internal.ui.preferences;
12
13
14 import java.util.ArrayList  ;
15 import java.util.Iterator ;
16 import java.util.List ;
17 import org.eclipse.ant.internal.core.AntObject;
18 import org.eclipse.jface.dialogs.IDialogConstants;
19 import org.eclipse.jface.viewers.ColumnLayoutData;
20 import org.eclipse.jface.viewers.ColumnWeightData;
21 import org.eclipse.jface.viewers.DoubleClickEvent;
22 import org.eclipse.jface.viewers.IDoubleClickListener;
23 import org.eclipse.jface.viewers.ISelectionChangedListener;
24 import org.eclipse.jface.viewers.IStructuredSelection;
25 import org.eclipse.jface.viewers.SelectionChangedEvent;
26 import org.eclipse.jface.viewers.TableLayout;
27 import org.eclipse.jface.viewers.TableViewer;
28 import org.eclipse.swt.SWT;
29 import org.eclipse.swt.events.KeyAdapter;
30 import org.eclipse.swt.events.KeyEvent;
31 import org.eclipse.swt.events.SelectionAdapter;
32 import org.eclipse.swt.events.SelectionEvent;
33 import org.eclipse.swt.layout.GridData;
34 import org.eclipse.swt.layout.GridLayout;
35 import org.eclipse.swt.widgets.Button;
36 import org.eclipse.swt.widgets.Composite;
37 import org.eclipse.swt.widgets.Shell;
38 import org.eclipse.swt.widgets.TabFolder;
39 import org.eclipse.swt.widgets.TabItem;
40 import org.eclipse.swt.widgets.Table;
41 import org.eclipse.swt.widgets.TableColumn;
42 import org.eclipse.ui.PlatformUI;
43
44
48 public abstract class AntPage {
49
50 protected static final int ADD_BUTTON = IDialogConstants.CLIENT_ID + 1;
51 protected static final int EDIT_BUTTON = IDialogConstants.CLIENT_ID + 2;
52 protected static final int REMOVE_BUTTON = IDialogConstants.CLIENT_ID + 3;
53
54 protected SelectionAdapter selectionAdapter = new SelectionAdapter() {
55 public void widgetSelected(SelectionEvent e) {
56 buttonPressed(((Integer ) e.widget.getData()).intValue());
57 }
58 };
59 private AntRuntimePreferencePage preferencePage;
60 private TableViewer tableViewer;
61 private AntContentProvider contentProvider;
62
63 protected Button editButton;
64 protected Button removeButton;
65
66 private final String [] fTableColumnHeaders= {
67 AntPreferencesMessages.AntPage_0, AntPreferencesMessages.AntPage_1, AntPreferencesMessages.AntPage_2, AntPreferencesMessages.AntPage_3
68 };
69 private final ColumnLayoutData[] fTableColumnLayouts= {
70 new ColumnWeightData(40),
71 new ColumnWeightData(20),
72 new ColumnWeightData(20),
73 new ColumnWeightData(20)
74 };
75
76
79 public AntPage(AntRuntimePreferencePage preferencePage) {
80 super();
81 this.preferencePage = preferencePage;
82 }
83
84
87 protected abstract void addButtonsToButtonGroup(Composite parent);
88
89
92 protected abstract void initialize();
93
94
97 protected void addContent(Object o) {
98 if (contentProvider != null) {
99 contentProvider.add(o);
100 }
101 }
102
103
106 private void buttonPressed(int buttonId) {
107 switch (buttonId) {
108 case ADD_BUTTON :
109 add();
110 break;
111 case EDIT_BUTTON :
112 edit(getSelection());
113 break;
114 case REMOVE_BUTTON :
115 remove();
116 break;
117 }
118 }
119
120
128 protected Button createPushButton(Composite parent, String buttonText, int buttonId) {
129 Button button = new Button(parent, SWT.PUSH);
130 button.setFont(parent.getFont());
131 button.setText(buttonText);
132 button.setData(new Integer (buttonId));
133 button.addSelectionListener(selectionAdapter);
134 preferencePage.setButtonLayoutData(button);
135 return button;
136 }
137
138
141 protected void createButtonGroup(Composite top) {
142 Composite buttonGroup = new Composite(top, SWT.NONE);
143 GridLayout layout = new GridLayout();
144 layout.marginHeight = 0;
145 layout.marginWidth = 0;
146 buttonGroup.setLayout(layout);
147 buttonGroup.setLayoutData(new GridData(GridData.FILL_VERTICAL));
148 buttonGroup.setFont(top.getFont());
149
150 addButtonsToButtonGroup(buttonGroup);
151 }
152
153
156 protected void createTable(Composite parent) {
157 Table table = new Table(parent, SWT.MULTI | SWT.FULL_SELECTION | SWT.BORDER);
158 GridData data= new GridData(GridData.FILL_BOTH);
159 data.widthHint = IDialogConstants.ENTRY_FIELD_WIDTH;
160 data.heightHint = table.getItemHeight();
161 data.horizontalSpan= 1;
162 table.setLayoutData(data);
163 table.setFont(parent.getFont());
164
165 TableLayout tableLayout = new TableLayout();
166 table.setLayout(tableLayout);
167 table.setHeaderVisible(true);
168 table.setLinesVisible(true);
169
170 for (int i = 0; i < fTableColumnHeaders.length; i++) {
172 tableLayout.addColumnData(fTableColumnLayouts[i]);
173 TableColumn column = new TableColumn(table, SWT.NONE, i);
174 column.setResizable(fTableColumnLayouts[i].resizable);
175 column.setText(fTableColumnHeaders[i]);
176 }
177
178 contentProvider = getContentProvider();
179 tableViewer = new TableViewer(table);
180 tableViewer.setContentProvider(contentProvider);
181 tableViewer.setLabelProvider(new AntObjectLabelProvider());
182 tableViewer.addSelectionChangedListener(new ISelectionChangedListener() {
183 public void selectionChanged(SelectionChangedEvent event) {
184 tableSelectionChanged((IStructuredSelection) event.getSelection());
185 }
186 });
187
188 tableViewer.addDoubleClickListener(new IDoubleClickListener() {
189 public void doubleClick(DoubleClickEvent event) {
190 if (!event.getSelection().isEmpty() && editButton.isEnabled()) {
191 edit((IStructuredSelection)event.getSelection());
192 }
193 }
194 });
195
196 table.addKeyListener(new KeyAdapter() {
197 public void keyPressed(KeyEvent event) {
198 if (editButton.isEnabled() && event.character == SWT.DEL && event.stateMask == 0) {
199 remove(tableViewer);
200 }
201 }
202 });
203 }
204
205
210 protected AntContentProvider getContentProvider() {
211 return new AntContentProvider();
212 }
213
214
223 protected List getContents(boolean forDisplay) {
224 if (tableViewer == null || tableViewer.getControl().isDisposed()) {
225 return null;
226 }
227 List entries= getPreferencePage().getLibraryEntries();
228
229 Object [] elements = contentProvider.getElements(tableViewer.getInput());
230 List contents= new ArrayList (elements.length);
231 Object element;
232 AntObject antObject;
233 for (int i = 0; i < elements.length; i++) {
234 element= elements[i];
235 if (element instanceof AntObject) {
236 antObject= (AntObject)element;
237 if (forDisplay) {
238 if (!antObject.isDefault() && !entries.contains(antObject.getLibraryEntry())) {
239 continue;
240 }
241 } else if (antObject.isDefault() || !entries.contains(antObject.getLibraryEntry())) {
242 continue;
243 }
244 }
245 contents.add(element);
246 }
247 return contents;
248 }
249
250
253 protected final IStructuredSelection getSelection() {
254 if (tableViewer == null || tableViewer.getControl().isDisposed()) {
255 return null;
256 }
257 return ((IStructuredSelection) tableViewer.getSelection());
258 }
259
260
263 protected final Shell getShell() {
264 if (tableViewer == null || tableViewer.getControl().isDisposed()) {
265 return null;
266 }
267 return tableViewer.getControl().getShell();
268 }
269
270
273 protected void remove() {
274 remove(tableViewer);
275 }
276
277 protected void remove(TableViewer viewer) {
278 AntContentProvider antContentProvider= (AntContentProvider)viewer.getContentProvider();
279 IStructuredSelection sel = (IStructuredSelection) viewer.getSelection();
280 Iterator itr = sel.iterator();
281 while (itr.hasNext()) {
282 antContentProvider.remove(itr.next());
283 }
284 }
285
286
290 protected void setInput(List inputs) {
291 if (tableViewer == null || tableViewer.getControl().isDisposed()) {
292 return;
293 }
294 tableViewer.setInput(inputs);
295 tableSelectionChanged((IStructuredSelection) tableViewer.getSelection());
296 }
297
298
301 protected final void updateContent(Object element) {
302 if (tableViewer == null || tableViewer.getControl().isDisposed()) {
303 return;
304 }
305 tableViewer.update(element, null);
306 }
307
308
311 protected Composite createContents(Composite top) {
312 PlatformUI.getWorkbench().getHelpSystem().setHelp(top, getHelpContextId());
313 GridLayout layout = new GridLayout();
314 layout.numColumns = 2;
315 layout.marginHeight = 2;
316 layout.marginWidth = 2;
317 top.setLayout(layout);
318
319 top.setLayoutData(new GridData(GridData.FILL_BOTH));
320
321 createTable(top);
322 createButtonGroup(top);
323
324 return top;
325 }
326
327 protected AntRuntimePreferencePage getPreferencePage() {
328 return preferencePage;
329 }
330
331 protected TableViewer getTableViewer() {
332 return tableViewer;
333 }
334
335
338 protected void tableSelectionChanged(IStructuredSelection newSelection) {
339 int size = newSelection.size();
340 boolean enabled= true;
341
342 Iterator itr= newSelection.iterator();
343 while (itr.hasNext()) {
344 Object element = itr.next();
345 if (element instanceof AntObject) {
346 AntObject antObject= (AntObject)element;
347 if (antObject.isDefault()) {
348 enabled= false;
349 break;
350 }
351 }
352 }
353 editButton.setEnabled(enabled && size == 1);
354 removeButton.setEnabled(enabled && size > 0);
355 }
356
357
362 protected abstract void edit(IStructuredSelection selection);
363
364
368 protected abstract void add();
369
370
376 protected abstract String getHelpContextId();
377
378 protected void connectToFolder(final TabItem item, TabFolder folder) {
379 folder.addSelectionListener(new SelectionAdapter() {
380 public void widgetSelected(SelectionEvent e) {
381 if (e.item == item) {
382 setInput(getContents(true));
384 }
385 }
386 });
387 }
388 }
389 |
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