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1
11 package org.eclipse.ant.internal.ui.preferences;
12
13
14 import java.io.BufferedReader  ;
15 import java.io.IOException ;
16 import java.io.InputStreamReader ;
17 import com.ibm.icu.text.MessageFormat;
18 import java.util.ArrayList ;
19 import java.util.HashMap ;
20 import java.util.Iterator ;
21 import java.util.List ;
22 import java.util.Map ;
23 import java.util.Set ;
24
25 import org.eclipse.ant.internal.ui.AntUIPlugin;
26 import org.eclipse.core.runtime.IStatus;
27 import org.eclipse.jface.dialogs.DialogPage;
28 import org.eclipse.jface.dialogs.IMessageProvider;
29 import org.eclipse.jface.preference.PreferencePage;
30 import org.eclipse.swt.SWT;
31 import org.eclipse.swt.events.ModifyEvent;
32 import org.eclipse.swt.events.ModifyListener;
33 import org.eclipse.swt.events.SelectionEvent;
34 import org.eclipse.swt.events.SelectionListener;
35 import org.eclipse.swt.graphics.Font;
36 import org.eclipse.swt.layout.GridData;
37 import org.eclipse.swt.widgets.Button;
38 import org.eclipse.swt.widgets.Composite;
39 import org.eclipse.swt.widgets.Control;
40 import org.eclipse.swt.widgets.Label;
41 import org.eclipse.swt.widgets.Text;
42 import org.eclipse.ui.IWorkbench;
43 import org.eclipse.ui.IWorkbenchPreferencePage;
44
45 public abstract class AbstractAntEditorPreferencePage extends PreferencePage implements IWorkbenchPreferencePage {
46
47 private OverlayPreferenceStore fOverlayStore;
48 protected List fStatusList;
49 private boolean fInitialized= false;
50
51 private Map fCheckBoxes= new HashMap ();
52 private SelectionListener fCheckBoxListener= new SelectionListener() {
53 public void widgetDefaultSelected(SelectionEvent e) {
54 }
55 public void widgetSelected(SelectionEvent e) {
56 Button button= (Button) e.widget;
57 fOverlayStore.setValue((String ) fCheckBoxes.get(button), button.getSelection());
58 }
59 };
60
61 private Map fTextFields= new HashMap ();
62 private ModifyListener fTextFieldListener= new ModifyListener() {
63 public void modifyText(ModifyEvent e) {
64 if (fInitialized) {
65 Text text= (Text) e.widget;
66 fOverlayStore.setValue((String ) fTextFields.get(text), text.getText());
67 }
68 }
69 };
70
71 private Map fNumberFields= new HashMap ();
72 private ModifyListener fNumberFieldListener= new ModifyListener() {
73 public void modifyText(ModifyEvent e) {
74 if (fInitialized) {
75 numberFieldChanged((Text) e.widget);
76 }
77 }
78 };
79
80 public AbstractAntEditorPreferencePage() {
81 super();
82 setPreferenceStore(AntUIPlugin.getDefault().getPreferenceStore());
83 fOverlayStore= createOverlayStore();
84 }
85
86 protected abstract OverlayPreferenceStore createOverlayStore();
87
88
91 public void init(IWorkbench workbench) {
92 }
93
94 protected void initializeFields() {
95 Map checkBoxes= getCheckBoxes();
96 Map textFields= getTextFields();
97 Iterator e= checkBoxes.keySet().iterator();
98 while (e.hasNext()) {
99 Button b= (Button) e.next();
100 String key= (String ) checkBoxes.get(b);
101 b.setSelection(getOverlayStore().getBoolean(key));
102 }
103
104 e= textFields.keySet().iterator();
105 while (e.hasNext()) {
106 Text t= (Text) e.next();
107 String key= (String ) textFields.get(t);
108 t.setText(getOverlayStore().getString(key));
109 }
110 fInitialized= true;
111 }
112
113
116 public boolean performOk() {
117 getOverlayStore().propagate();
118 AntUIPlugin.getDefault().savePluginPreferences();
119 return true;
120 }
121
122 protected OverlayPreferenceStore getOverlayStore() {
123 return fOverlayStore;
124 }
125
126 protected OverlayPreferenceStore setOverlayStore() {
127 return fOverlayStore;
128 }
129
130 protected Map getCheckBoxes() {
131 return fCheckBoxes;
132 }
133
134 protected Map getTextFields() {
135 return fTextFields;
136 }
137
138 protected Map getNumberFields() {
139 return fNumberFields;
140 }
141
142
145 protected void performDefaults() {
146 getOverlayStore().loadDefaults();
147 initializeFields();
148 handleDefaults();
149 super.performDefaults();
150 }
151
152 protected abstract void handleDefaults();
153
154
157 public void dispose() {
158 if (getOverlayStore() != null) {
159 getOverlayStore().stop();
160 fOverlayStore= null;
161 }
162 super.dispose();
163 }
164
165 protected Button addCheckBox(Composite parent, String labelText, String key, int indentation) {
166 Button checkBox= new Button(parent, SWT.CHECK);
167 checkBox.setText(labelText);
168 checkBox.setFont(parent.getFont());
169
170 GridData gd= new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING);
171 gd.horizontalIndent= indentation;
172 gd.horizontalSpan= 2;
173 checkBox.setLayoutData(gd);
174 checkBox.addSelectionListener(fCheckBoxListener);
175
176 getCheckBoxes().put(checkBox, key);
177
178 return checkBox;
179 }
180
181 protected Text addTextField(Composite composite, String labelText, String key, int textLimit, int indentation, String [] errorMessages) {
182 Font font= composite.getFont();
183
184 Label label= new Label(composite, SWT.NONE);
185 label.setText(labelText);
186 label.setFont(font);
187 GridData gd= new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING);
188 gd.horizontalIndent= indentation;
189 label.setLayoutData(gd);
190
191 Text textControl= new Text(composite, SWT.BORDER | SWT.SINGLE);
192 textControl.setFont(font);
193 gd= new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING);
194 gd.widthHint= convertWidthInCharsToPixels(textLimit + 1);
195 textControl.setLayoutData(gd);
196 textControl.setTextLimit(textLimit);
197 getTextFields().put(textControl, key);
198 if (errorMessages != null) {
199 getNumberFields().put(textControl, errorMessages);
200 textControl.addModifyListener(fNumberFieldListener);
201 } else {
202 textControl.addModifyListener(fTextFieldListener);
203 }
204
205 return textControl;
206 }
207
208 private void numberFieldChanged(Text textControl) {
209 String number= textControl.getText();
210 IStatus status= validatePositiveNumber(number, (String [])getNumberFields().get(textControl));
211 if (!status.matches(IStatus.ERROR)) {
212 getOverlayStore().setValue((String ) getTextFields().get(textControl), number);
213 }
214 updateStatus(status);
215 }
216
217 private IStatus validatePositiveNumber(String number, String [] errorMessages) {
218 StatusInfo status= new StatusInfo();
219 if (number.length() == 0) {
220 status.setError(errorMessages[0]);
221 } else {
222 try {
223 int value= Integer.parseInt(number);
224 if (value < 0)
225 status.setError(MessageFormat.format(errorMessages[1], new String []{number}));
226 } catch (NumberFormatException e) {
227 status.setError(MessageFormat.format(errorMessages[1], new String []{number}));
228 }
229 }
230 return status;
231 }
232
233 protected void updateStatus(IStatus status) {
234 if (!status.matches(IStatus.ERROR)) {
235 Set keys= getNumberFields().keySet();
236 for (Iterator iter = keys.iterator(); iter.hasNext();) {
237 Text text = (Text) iter.next();
238 IStatus s= validatePositiveNumber(text.getText(), (String [])getNumberFields().get(text));
239 status= s.getSeverity() > status.getSeverity() ? s : status;
240 }
241 }
242
243 List statusList= getStatusList();
244 if (statusList != null) {
245 List temp= new ArrayList (statusList.size() + 1);
246 temp.add(status);
247 temp.addAll(statusList);
248 status= getMostSevere(temp);
249 }
250 setValid(!status.matches(IStatus.ERROR));
251 applyToStatusLine(this, status);
252 }
253
254 protected List getStatusList() {
255 return fStatusList;
256 }
257
258
263 private IStatus getMostSevere(List statusList) {
264 IStatus max= null;
265 for (int i= 0; i < statusList.size(); i++) {
266 IStatus curr= (IStatus)statusList.get(i);
267 if (curr.matches(IStatus.ERROR)) {
268 return curr;
269 }
270 if (max == null || curr.getSeverity() > max.getSeverity()) {
271 max= curr;
272 }
273 }
274 return max;
275 }
276
277
280 private void applyToStatusLine(DialogPage page, IStatus status) {
281 String message= status.getMessage();
282 switch (status.getSeverity()) {
283 case IStatus.OK:
284 page.setMessage(message, IMessageProvider.NONE);
285 page.setErrorMessage(null);
286 break;
287 case IStatus.WARNING:
288 page.setMessage(message, IMessageProvider.WARNING);
289 page.setErrorMessage(null);
290 break;
291 case IStatus.INFO:
292 page.setMessage(message, IMessageProvider.INFORMATION);
293 page.setErrorMessage(null);
294 break;
295 default:
296 if (message.length() == 0) {
297 message= null;
298 }
299 page.setMessage(null);
300 page.setErrorMessage(message);
301 break;
302 }
303 }
304
305
311 protected Control[] addLabelledTextField(Composite composite, String label, String key, int textLimit, int indentation, String [] errorMessages) {
312 Label labelControl= new Label(composite, SWT.NONE);
313 labelControl.setText(label);
314 labelControl.setFont(composite.getFont());
315 GridData gd= new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING);
316 gd.horizontalIndent= indentation;
317 labelControl.setLayoutData(gd);
318
319 Text textControl= new Text(composite, SWT.BORDER | SWT.SINGLE);
320 gd= new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING);
321 if (textLimit > -1) {
322 gd.widthHint= convertWidthInCharsToPixels(textLimit + 1);
323 textControl.setTextLimit(textLimit);
324 } else {
325 gd.widthHint= convertWidthInCharsToPixels(50);
326 }
327 textControl.setLayoutData(gd);
328 textControl.setFont(composite.getFont());
329 fTextFields.put(textControl, key);
330 if (errorMessages != null) {
331 fNumberFields.put(textControl, errorMessages);
332 textControl.addModifyListener(fNumberFieldListener);
333 } else {
334 textControl.addModifyListener(fTextFieldListener);
335 }
336
337 return new Control[]{labelControl, textControl};
338 }
339
340 protected String loadPreviewContentFromFile(String filename) {
341 String line;
342 String separator= System.getProperty("line.separator"); StringBuffer buffer= new StringBuffer (512);
344 BufferedReader reader= null;
345 try {
346 reader= new BufferedReader (new InputStreamReader (getClass().getResourceAsStream(filename)));
347 while ((line= reader.readLine()) != null) {
348 buffer.append(line);
349 buffer.append(separator);
350 }
351 } catch (IOException io) {
352 AntUIPlugin.log(io);
353 } finally {
354 if (reader != null) {
355 try { reader.close(); } catch (IOException e) {}
356 }
357 }
358 return buffer.toString();
359 }
360
361 protected Label getLabelControl(Control[] labelledTextField) {
362 return (Label)labelledTextField[0];
363 }
364
365 protected Text getTextControl(Control[] labelledTextField) {
366 return (Text)labelledTextField[1];
367 }
368 }
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