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1
11 package org.eclipse.jdt.internal.junit.util;
12
13 import java.util.ArrayList  ;
14 import java.util.Arrays ;
15 import java.util.List ;
16
17 import org.eclipse.core.runtime.IStatus;
18
19 import org.eclipse.swt.SWT;
20 import org.eclipse.swt.custom.BusyIndicator;
21 import org.eclipse.swt.events.SelectionAdapter;
22 import org.eclipse.swt.events.SelectionEvent;
23 import org.eclipse.swt.events.SelectionListener;
24 import org.eclipse.swt.layout.GridData;
25 import org.eclipse.swt.layout.GridLayout;
26 import org.eclipse.swt.widgets.Button;
27 import org.eclipse.swt.widgets.Composite;
28 import org.eclipse.swt.widgets.Control;
29 import org.eclipse.swt.widgets.Label;
30 import org.eclipse.swt.widgets.Shell;
31 import org.eclipse.swt.widgets.Table;
32
33 import org.eclipse.jface.dialogs.IDialogConstants;
34 import org.eclipse.jface.viewers.CheckStateChangedEvent;
35 import org.eclipse.jface.viewers.CheckboxTableViewer;
36 import org.eclipse.jface.viewers.ICheckStateListener;
37 import org.eclipse.jface.viewers.ILabelProvider;
38 import org.eclipse.jface.viewers.IStructuredContentProvider;
39 import org.eclipse.jface.viewers.ViewerFilter;
40
41 import org.eclipse.ui.dialogs.ISelectionStatusValidator;
42 import org.eclipse.ui.dialogs.SelectionStatusDialog;
43
44 import org.eclipse.jdt.internal.junit.wizards.WizardMessages;
45
46
49 public class CheckedTableSelectionDialog extends SelectionStatusDialog {
50
51 private CheckboxTableViewer fViewer;
52
53 private ILabelProvider fLabelProvider;
54 private IStructuredContentProvider fContentProvider;
55
56 private ISelectionStatusValidator fValidator= null;
57 private String fEmptyListMessage= WizardMessages.CheckedTableSelectionDialog_emptyListMessage;
58
59 private IStatus fCurrStatus= new JUnitStatus();
60 private List fFilters;
61 private Object fInput;
62 private boolean fIsEmpty;
63
64 private int fWidth= 40;
65 private int fHeight= 18;
66
67
72 public CheckedTableSelectionDialog(Shell parent, ILabelProvider labelProvider,
73 IStructuredContentProvider contentProvider) {
74 super(parent);
75
76 fLabelProvider= labelProvider;
77 fContentProvider= contentProvider;
78
79 setResult(new ArrayList (0));
80 setStatusLineAboveButtons(true);
81 }
82
83
88 public void setInitialSelection(Object selection) {
89 setInitialSelections(new Object [] {selection});
90 }
91
92
96 public void setEmptyListMessage(String message) {
97 fEmptyListMessage= message;
98 }
99
100
104 public void addFilter(ViewerFilter filter) {
105 if (fFilters == null)
106 fFilters= new ArrayList (4);
107
108 fFilters.add(filter);
109 }
110
111
116 public void setValidator(ISelectionStatusValidator validator) {
117 fValidator= validator;
118 }
119
120
124 public void setInput(Object input) {
125 fInput= input;
126 }
127
128
133 public void setSize(int width, int height) {
134 fWidth= width;
135 fHeight= height;
136 }
137
138 protected void updateOKStatus() {
139 if (!fIsEmpty) {
140 if (fValidator != null) {
141 fCurrStatus= fValidator.validate(fViewer.getCheckedElements());
142 updateStatus(fCurrStatus);
143 } else if (!fCurrStatus.isOK()) {
144 fCurrStatus= new JUnitStatus();
145 }
146 } else {
147 fCurrStatus= new JUnitStatus(IStatus.ERROR, fEmptyListMessage);
148 }
149 updateStatus(fCurrStatus);
150 }
151
152
155 public int open() {
156 fIsEmpty= evaluateIfTableEmpty(fInput);
157 BusyIndicator.showWhile(null, new Runnable () {
158 public void run() {
159 access$superOpen();
160 }
161 });
162 return getReturnCode();
163 }
164
165 private void access$superOpen() {
166 super.open();
167 }
168
169
172 protected void cancelPressed() {
173 setResult(null);
174 super.cancelPressed();
175 }
176
177
180 protected void computeResult() {
181 setResult(Arrays.asList(fViewer.getCheckedElements()));
182 }
183
184
187 public void create() {
188 super.create();
189
190 List initialSelections= getInitialElementSelections();
191 if (initialSelections.size() > 0) {
192 fViewer.setCheckedElements(initialSelections.toArray());
193 }
194
195 updateOKStatus();
196 }
197
198
201 protected Control createDialogArea(Composite parent) {
202 Composite composite= (Composite) super.createDialogArea(parent);
203
204 Label messageLabel= createMessageArea(composite);
205 Control treeWidget= createTableViewer(composite);
206 Control buttonComposite= createSelectionButtons(composite);
207
208 GridData data= new GridData(GridData.FILL_BOTH);
209 data.widthHint= convertWidthInCharsToPixels(fWidth);
210 data.heightHint= convertHeightInCharsToPixels(fHeight);
211 treeWidget.setLayoutData(data);
212
213 if (fIsEmpty) {
214 messageLabel.setEnabled(false);
215 treeWidget.setEnabled(false);
216 buttonComposite.setEnabled(false);
217 }
218 applyDialogFont(composite);
219 return composite;
220 }
221
222 private Table createTableViewer(Composite parent) {
223 fViewer= CheckboxTableViewer.newCheckList(parent, SWT.BORDER);
224
225 fViewer.setContentProvider(fContentProvider);
226 fViewer.setLabelProvider(fLabelProvider);
227 fViewer.addCheckStateListener(new ICheckStateListener() {
228 public void checkStateChanged(CheckStateChangedEvent event) {
229 updateOKStatus();
230 }
231 });
232
233 if (fFilters != null) {
234 for (int i= 0; i != fFilters.size(); i++)
235 fViewer.addFilter((ViewerFilter) fFilters.get(i));
236 }
237
238 fViewer.setInput(fInput);
239 return fViewer.getTable();
240 }
241
242
246 private Composite createSelectionButtons(Composite composite) {
247 Composite buttonComposite= new Composite(composite, SWT.RIGHT);
248 GridLayout layout= new GridLayout();
249 layout.numColumns= 2;
250 buttonComposite.setLayout(layout);
251 GridData data= new GridData(GridData.HORIZONTAL_ALIGN_END | GridData.GRAB_HORIZONTAL);
252 data.grabExcessHorizontalSpace= true;
253 composite.setData(data);
254
255 Button selectButton= createButton(buttonComposite, IDialogConstants.SELECT_ALL_ID, WizardMessages.CheckedTableSelectionDialog_selectAll, false);
256
257 SelectionListener listener= new SelectionAdapter() {
258 public void widgetSelected(SelectionEvent e) {
259 fViewer.setCheckedElements(fContentProvider.getElements(fInput));
260 updateOKStatus();
261 }
262 };
263 selectButton.addSelectionListener(listener);
264
265 Button deselectButton= createButton(buttonComposite, IDialogConstants.DESELECT_ALL_ID, WizardMessages.CheckedTableSelectionDialog_deselectAll, false);
266
267 listener= new SelectionAdapter() {
268 public void widgetSelected(SelectionEvent e) {
269 fViewer.setCheckedElements(new Object [0]);
270 updateOKStatus();
271 }
272 };
273 deselectButton.addSelectionListener(listener);
274 return buttonComposite;
275 }
276
277 private boolean evaluateIfTableEmpty(Object input) {
278 Object [] elements= fContentProvider.getElements(input);
279 if (elements.length > 0) {
280 if (fFilters != null) {
281 for (int i= 0; i < fFilters.size(); i++) {
282 ViewerFilter curr= (ViewerFilter)fFilters.get(i);
283 elements= curr.filter(fViewer, input, elements);
284 }
285 }
286 }
287 return elements.length == 0;
288 }
289 }
290 |
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