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1
11 package org.eclipse.jdt.internal.ui.wizards.buildpaths;
12
13 import java.util.ArrayList  ;
14 import java.util.HashSet ;
15 import java.util.Iterator ;
16 import java.util.List ;
17 import java.util.Set ;
18
19 import org.eclipse.core.runtime.IStatus;
20
21 import org.eclipse.core.resources.IContainer;
22
23 import org.eclipse.swt.SWT;
24 import org.eclipse.swt.custom.BusyIndicator;
25 import org.eclipse.swt.events.SelectionAdapter;
26 import org.eclipse.swt.events.SelectionEvent;
27 import org.eclipse.swt.layout.GridData;
28 import org.eclipse.swt.widgets.Button;
29 import org.eclipse.swt.widgets.Composite;
30 import org.eclipse.swt.widgets.Control;
31 import org.eclipse.swt.widgets.Shell;
32 import org.eclipse.swt.widgets.Tree;
33
34 import org.eclipse.jface.viewers.CheckStateChangedEvent;
35 import org.eclipse.jface.viewers.CheckboxTreeViewer;
36 import org.eclipse.jface.viewers.ICheckStateListener;
37 import org.eclipse.jface.viewers.ILabelProvider;
38 import org.eclipse.jface.viewers.ISelectionChangedListener;
39 import org.eclipse.jface.viewers.IStructuredSelection;
40 import org.eclipse.jface.viewers.ITreeContentProvider;
41 import org.eclipse.jface.viewers.SelectionChangedEvent;
42 import org.eclipse.jface.viewers.StructuredSelection;
43 import org.eclipse.jface.viewers.ViewerFilter;
44 import org.eclipse.jface.window.Window;
45
46 import org.eclipse.ui.dialogs.NewFolderDialog;
47 import org.eclipse.ui.dialogs.SelectionStatusDialog;
48
49 import org.eclipse.ui.views.navigator.ResourceComparator;
50
51 import org.eclipse.jdt.internal.ui.dialogs.StatusInfo;
52 import org.eclipse.jdt.internal.ui.wizards.NewWizardMessages;
53
54
56 public class MultipleFolderSelectionDialog extends SelectionStatusDialog implements ISelectionChangedListener {
57
58 private CheckboxTreeViewer fViewer;
59
60 private ILabelProvider fLabelProvider;
61 private ITreeContentProvider fContentProvider;
62 private List fFilters;
63
64 private Object fInput;
65 private Button fNewFolderButton;
66 private IContainer fSelectedContainer;
67 private Set fExisting;
68 private Object fFocusElement;
69
70 public MultipleFolderSelectionDialog(Shell parent, ILabelProvider labelProvider, ITreeContentProvider contentProvider) {
71 super(parent);
72 fLabelProvider= labelProvider;
73 fContentProvider= contentProvider;
74
75 setSelectionResult(null);
76 setStatusLineAboveButtons(true);
77
78 int shellStyle = getShellStyle();
79 setShellStyle(shellStyle | SWT.MAX | SWT.RESIZE);
80
81 fExisting= null;
82 fFocusElement= null;
83 fFilters= null;
84 }
85
86 public void setExisting(Object [] existing) {
87 fExisting= new HashSet ();
88 for (int i= 0; i < existing.length; i++) {
89 fExisting.add(existing[i]);
90 }
91 }
92
93
97 public void setInput(Object input) {
98 fInput = input;
99 }
100
101
105 public void addFilter(ViewerFilter filter) {
106 if (fFilters == null)
107 fFilters = new ArrayList (4);
108
109 fFilters.add(filter);
110 }
111
112
115 protected void cancelPressed() {
116 setSelectionResult(null);
117 super.cancelPressed();
118 }
119
120
123 protected void computeResult() {
124 Object [] checked= fViewer.getCheckedElements();
125 if (fExisting == null) {
126 if (checked.length == 0) {
127 checked= null;
128 }
129 } else {
130 ArrayList res= new ArrayList ();
131 for (int i= 0; i < checked.length; i++) {
132 Object elem= checked[i];
133 if (!fExisting.contains(elem)) {
134 res.add(elem);
135 }
136 }
137 if (!res.isEmpty()) {
138 checked= res.toArray();
139 } else {
140 checked= null;
141 }
142 }
143 setSelectionResult(checked);
144 }
145
146 private void access$superCreate() {
147 super.create();
148 }
149
150
153 public void create() {
154
155 BusyIndicator.showWhile(null, new Runnable () {
156 public void run() {
157 access$superCreate();
158
159 fViewer.setCheckedElements(
160 getInitialElementSelections().toArray());
161
162 fViewer.expandToLevel(2);
163 if (fExisting != null) {
164 for (Iterator iter= fExisting.iterator(); iter.hasNext();) {
165 fViewer.reveal(iter.next());
166 }
167 }
168
169 updateOKStatus();
170 }
171 });
172
173 }
174
175
181 protected CheckboxTreeViewer createTreeViewer(Composite parent) {
182 fViewer = new CheckboxTreeViewer(parent, SWT.BORDER);
183
184 fViewer.setContentProvider(fContentProvider);
185 fViewer.setLabelProvider(fLabelProvider);
186 fViewer.addCheckStateListener(new ICheckStateListener() {
187 public void checkStateChanged(CheckStateChangedEvent event) {
188 updateOKStatus();
189 }
190 });
191
192 fViewer.setComparator(new ResourceComparator(ResourceComparator.NAME));
193 if (fFilters != null) {
194 for (int i = 0; i != fFilters.size(); i++)
195 fViewer.addFilter((ViewerFilter) fFilters.get(i));
196 }
197
198 fViewer.setInput(fInput);
199
200 return fViewer;
201 }
202
203
204
205
208 protected void updateOKStatus() {
209 computeResult();
210 if (getResult() != null) {
211 updateStatus(new StatusInfo());
212 } else {
213 updateStatus(new StatusInfo(IStatus.ERROR, "")); }
215 }
216
217
220 protected Control createDialogArea(Composite parent) {
221 Composite composite = (Composite) super.createDialogArea(parent);
222
223 createMessageArea(composite);
224 CheckboxTreeViewer treeViewer = createTreeViewer(composite);
225
226 GridData data = new GridData(GridData.FILL_BOTH);
227 data.widthHint = convertWidthInCharsToPixels(60);
228 data.heightHint = convertHeightInCharsToPixels(18);
229
230 Tree treeWidget = treeViewer.getTree();
231 treeWidget.setLayoutData(data);
232 treeWidget.setFont(composite.getFont());
233
234 Button button = new Button(composite, SWT.PUSH);
235 button.setText(NewWizardMessages.MultipleFolderSelectionDialog_button);
236 button.addSelectionListener(new SelectionAdapter() {
237 public void widgetSelected(SelectionEvent event) {
238 newFolderButtonPressed();
239 }
240 });
241 button.setFont(composite.getFont());
242
243 fNewFolderButton= button;
244
245 treeViewer.addSelectionChangedListener(this);
246 if (fExisting != null) {
247 Object [] existing= fExisting.toArray();
248 treeViewer.setGrayedElements(existing);
249 setInitialSelections(existing);
250 }
251 if (fFocusElement != null) {
252 treeViewer.setSelection(new StructuredSelection(fFocusElement), true);
253 }
254 treeViewer.addCheckStateListener(new ICheckStateListener() {
255 public void checkStateChanged(CheckStateChangedEvent event) {
256 forceExistingChecked(event);
257 }
258 });
259
260 applyDialogFont(composite);
261 return composite;
262 }
263
264 protected void forceExistingChecked(CheckStateChangedEvent event) {
265 if (fExisting != null) {
266 Object elem= event.getElement();
267 if (fExisting.contains(elem)) {
268 fViewer.setChecked(elem, true);
269 }
270 }
271 }
272
273 private void updateNewFolderButtonState() {
274 IStructuredSelection selection= (IStructuredSelection) fViewer.getSelection();
275 fSelectedContainer= null;
276 if (selection.size() == 1) {
277 Object first= selection.getFirstElement();
278 if (first instanceof IContainer) {
279 fSelectedContainer= (IContainer) first;
280 }
281 }
282 fNewFolderButton.setEnabled(fSelectedContainer != null);
283 }
284
285 protected void newFolderButtonPressed() {
286 Object createdFolder= createFolder(fSelectedContainer);
287 if (createdFolder != null) {
288 CheckboxTreeViewer treeViewer= fViewer;
289 treeViewer.refresh(fSelectedContainer);
290 treeViewer.reveal(createdFolder);
291 treeViewer.setChecked(createdFolder, true);
292 treeViewer.setSelection(new StructuredSelection(createdFolder));
293 updateOKStatus();
294 }
295 }
296
297 protected Object createFolder(IContainer container) {
298 NewFolderDialog dialog= new NewFolderDialog(getShell(), container);
299 if (dialog.open() == Window.OK) {
300 return dialog.getResult()[0];
301 }
302 return null;
303 }
304
305
308 public void selectionChanged(SelectionChangedEvent event) {
309 updateNewFolderButtonState();
310 }
311
312 public void setInitialFocus(Object focusElement) {
313 fFocusElement= focusElement;
314 }
315
316
317
318 }
319 |
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