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   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2004 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Common Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/cpl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  *******************************************************************************/
  11
  12 package net.sourceforge.phpdt.internal.ui.preferences;
  13
  14 import java.util.ArrayList;
  15 import java.util.HashMap;
  16 import java.util.Iterator;
  17 import java.util.Map;
  18
  19 import org.eclipse.core.runtime.IStatus;
  20
  21 import org.eclipse.swt.SWT;
  22 import org.eclipse.swt.events.ModifyEvent;
  23 import org.eclipse.swt.events.ModifyListener;
  24 import org.eclipse.swt.events.SelectionAdapter;
  25 import org.eclipse.swt.events.SelectionEvent;
  26 import org.eclipse.swt.events.SelectionListener;
  27 import org.eclipse.swt.graphics.RGB;
  28 import org.eclipse.swt.layout.GridData;
  29 import org.eclipse.swt.layout.GridLayout;
  30 import org.eclipse.swt.widgets.Button;
  31 import org.eclipse.swt.widgets.Composite;
  32 import org.eclipse.swt.widgets.Control;
  33 import org.eclipse.swt.widgets.Label;
  34 import org.eclipse.swt.widgets.List;
  35 import org.eclipse.swt.widgets.Text;
  36
  37 import org.eclipse.jface.preference.PreferenceConverter;
  38 import org.eclipse.jface.preference.PreferencePage;
  39
  40 import org.eclipse.jface.text.Assert;
  41
  42 import net.sourceforge.phpdt.ui.PreferenceConstants;
  43
  44 import net.sourceforge.phpdt.internal.ui.dialogs.StatusInfo;
  45 import net.sourceforge.phpdt.internal.ui.dialogs.StatusUtil;
  46 import net.sourceforge.phpdt.internal.ui.util.PixelConverter;
  47
  48 /**
  49  * Configures the code assist preferences.
  50  *
  51  * @since 3.0
  52  */
  53 class CodeAssistConfigurationBlock implements IPreferenceConfigurationBlock {
  54
  55
  56         private OverlayPreferenceStore fStore;
  57         private PreferencePage fMainPreferencePage;
  58
  59         private List fContentAssistColorList;
  60         private ColorEditor fContentAssistColorEditor;
  61     private Control fAutoInsertDelayText;
  62     private Control fAutoInsertJavaTriggerText;
  63     private Control fAutoInsertJavaDocTriggerText;
  64     private Control fAutoInsertHTMLTriggerText;
  65         private Label fAutoInsertDelayLabel;
  66         private Label fAutoInsertJavaTriggerLabel;
  67         private Label fAutoInsertJavaDocTriggerLabel;
  68         private Label fAutoInsertHTMLTriggerLabel;
  69 //      private Button fCompletionInsertsRadioButton;
  70 //      private Button fCompletionOverwritesRadioButton;
  71         /**
  72          * List of master/slave listeners when there's a dependency.
  73          *
  74          * @see #createDependency(Button, String, Control)
  75          * @since 3.0
  76          */
  77         private ArrayList fMasterSlaveListeners= new ArrayList();
  78
  79         private final String[][] fContentAssistColorListModel= new String[][] {
  80                         {PreferencesMessages.getString("JavaEditorPreferencePage.backgroundForCompletionProposals"), PreferenceConstants.CODEASSIST_PROPOSALS_BACKGROUND }, //$NON-NLS-1$
  81                         {PreferencesMessages.getString("JavaEditorPreferencePage.foregroundForCompletionProposals"), PreferenceConstants.CODEASSIST_PROPOSALS_FOREGROUND }, //$NON-NLS-1$
  82 //                      {PreferencesMessages.getString("JavaEditorPreferencePage.backgroundForMethodParameters"), PreferenceConstants.CODEASSIST_PARAMETERS_BACKGROUND }, //$NON-NLS-1$
  83 //                      {PreferencesMessages.getString("JavaEditorPreferencePage.foregroundForMethodParameters"), PreferenceConstants.CODEASSIST_PARAMETERS_FOREGROUND }, //$NON-NLS-1$
  84 //                      {PreferencesMessages.getString("JavaEditorPreferencePage.backgroundForCompletionReplacement"), PreferenceConstants.CODEASSIST_REPLACEMENT_BACKGROUND }, //$NON-NLS-1$
  85 //                      {PreferencesMessages.getString("JavaEditorPreferencePage.foregroundForCompletionReplacement"), PreferenceConstants.CODEASSIST_REPLACEMENT_FOREGROUND } //$NON-NLS-1$
  86                 };
  87
  88
  89         private Map fCheckBoxes= new HashMap();
  90         private SelectionListener fCheckBoxListener= new SelectionListener() {
  91                 public void widgetDefaultSelected(SelectionEvent e) {
  92                 }
  93                 public void widgetSelected(SelectionEvent e) {
  94                         Button button= (Button) e.widget;
  95                         fStore.setValue((String) fCheckBoxes.get(button), button.getSelection());
  96                 }
  97         };
  98
  99         private Map fTextFields= new HashMap();
 100         private ModifyListener fTextFieldListener= new ModifyListener() {
 101                 public void modifyText(ModifyEvent e) {
 102                         Text text= (Text) e.widget;
 103                         fStore.setValue((String) fTextFields.get(text), text.getText());
 104                 }
 105         };
 106
 107         private ArrayList fNumberFields= new ArrayList();
 108         private ModifyListener fNumberFieldListener= new ModifyListener() {
 109                 public void modifyText(ModifyEvent e) {
 110                         numberFieldChanged((Text) e.widget);
 111                 }
 112         };
 113
 114
 115         public CodeAssistConfigurationBlock(PreferencePage mainPreferencePage, OverlayPreferenceStore store) {
 116                 Assert.isNotNull(mainPreferencePage);
 117                 Assert.isNotNull(store);
 118                 fStore= store;
 119                 fStore.addKeys(createOverlayStoreKeys());
 120                 fMainPreferencePage= mainPreferencePage;
 121         }
 122
 123
 124         private OverlayPreferenceStore.OverlayKey[] createOverlayStoreKeys() {
 125
 126                 ArrayList overlayKeys= new ArrayList();
 127
 128                 overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.CODEASSIST_AUTOACTIVATION));
 129                 overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.INT, PreferenceConstants.CODEASSIST_AUTOACTIVATION_DELAY));
 130                 overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.CODEASSIST_AUTOINSERT));
 131                 overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, PreferenceConstants.CODEASSIST_PROPOSALS_BACKGROUND));
 132                 overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, PreferenceConstants.CODEASSIST_PROPOSALS_FOREGROUND));
 133                 overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, PreferenceConstants.CODEASSIST_PARAMETERS_BACKGROUND));
 134                 overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, PreferenceConstants.CODEASSIST_PARAMETERS_FOREGROUND));
 135                 overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, PreferenceConstants.CODEASSIST_REPLACEMENT_BACKGROUND));
 136                 overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, PreferenceConstants.CODEASSIST_REPLACEMENT_FOREGROUND));
 137                 overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, PreferenceConstants.CODEASSIST_AUTOACTIVATION_TRIGGERS_JAVA));
 138                 overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, PreferenceConstants.CODEASSIST_AUTOACTIVATION_TRIGGERS_JAVADOC));
 139                 overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, PreferenceConstants.CODEASSIST_AUTOACTIVATION_TRIGGERS_HTML));
 140                 overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.CODEASSIST_SHOW_VISIBLE_PROPOSALS));
 141                 overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.CODEASSIST_ORDER_PROPOSALS));
 142                 overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.CODEASSIST_CASE_SENSITIVITY));
 143                 overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.CODEASSIST_ADDIMPORT));
 144                 overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.CODEASSIST_INSERT_COMPLETION));
 145                 overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.CODEASSIST_FILL_ARGUMENT_NAMES));
 146                 overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.CODEASSIST_GUESS_METHOD_ARGUMENTS));
 147                 overlayKeys.add(new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, PreferenceConstants.CODEASSIST_PREFIX_COMPLETION));
 148
 149                 OverlayPreferenceStore.OverlayKey[] keys= new OverlayPreferenceStore.OverlayKey[overlayKeys.size()];
 150                 overlayKeys.toArray(keys);
 151                 return keys;
 152         }
 153
 154         /**
 155          * Creates page for hover preferences.
 156          *
 157          * @param parent the parent composite
 158          * @return the control for the preference page
 159          */
 160         public Control createControl(Composite parent) {
 161
 162                 PixelConverter pixelConverter= new PixelConverter(parent);
 163
 164                 Composite contentAssistComposite= new Composite(parent, SWT.NONE);
 165                 contentAssistComposite.setLayoutData(new GridData(GridData.FILL_BOTH));
 166                 GridLayout layout= new GridLayout();
 167                 layout.numColumns= 2;
 168                 contentAssistComposite.setLayout(layout);
 169
 170 //              addCompletionRadioButtons(contentAssistComposite);
 171
 172                 String label;
 173 //              label= PreferencesMessages.getString("JavaEditorPreferencePage.insertSingleProposalsAutomatically"); //$NON-NLS-1$
 174 //              addCheckBox(contentAssistComposite, label, PreferenceConstants.CODEASSIST_AUTOINSERT, 0);
 175 //
 176 //              label= PreferencesMessages.getString("JavaEditorPreferencePage.completePrefixes"); //$NON-NLS-1$
 177 //              addCheckBox(contentAssistComposite, label, PreferenceConstants.CODEASSIST_PREFIX_COMPLETION, 0);
 178 //
 179 //              label= PreferencesMessages.getString("JavaEditorPreferencePage.showOnlyProposalsVisibleInTheInvocationContext"); //$NON-NLS-1$
 180 //              addCheckBox(contentAssistComposite, label, PreferenceConstants.CODEASSIST_SHOW_VISIBLE_PROPOSALS, 0);
 181 //
 182 //              label= PreferencesMessages.getString("JavaEditorPreferencePage.presentProposalsInAlphabeticalOrder"); //$NON-NLS-1$
 183 //              addCheckBox(contentAssistComposite, label, PreferenceConstants.CODEASSIST_ORDER_PROPOSALS, 0);
 184 //
 185 //              label= PreferencesMessages.getString("JavaEditorPreferencePage.automaticallyAddImportInsteadOfQualifiedName"); //$NON-NLS-1$
 186 //              addCheckBox(contentAssistComposite, label, PreferenceConstants.CODEASSIST_ADDIMPORT, 0);
 187 //
 188 //              label= PreferencesMessages.getString("JavaEditorPreferencePage.fillArgumentNamesOnMethodCompletion"); //$NON-NLS-1$
 189 //              Button master= addCheckBox(contentAssistComposite, label, PreferenceConstants.CODEASSIST_FILL_ARGUMENT_NAMES, 0);
 190 //
 191 //              label= PreferencesMessages.getString("JavaEditorPreferencePage.guessArgumentNamesOnMethodCompletion"); //$NON-NLS-1$
 192 //              Button slave= addCheckBox(contentAssistComposite, label, PreferenceConstants.CODEASSIST_GUESS_METHOD_ARGUMENTS, 0);
 193 //              createDependency(master, PreferenceConstants.CODEASSIST_FILL_ARGUMENT_NAMES, slave);
 194 //
 195                 label= PreferencesMessages.getString("JavaEditorPreferencePage.enableAutoActivation"); //$NON-NLS-1$
 196                 final Button autoactivation= addCheckBox(contentAssistComposite, label, PreferenceConstants.CODEASSIST_AUTOACTIVATION, 0);
 197                 autoactivation.addSelectionListener(new SelectionAdapter(){
 198                         public void widgetSelected(SelectionEvent e) {
 199                                 updateAutoactivationControls();
 200                         }
 201                 });
 202
 203                 Control[] labelledTextField;
 204                 label= PreferencesMessages.getString("JavaEditorPreferencePage.autoActivationDelay"); //$NON-NLS-1$
 205                 labelledTextField= addLabelledTextField(contentAssistComposite, label, PreferenceConstants.CODEASSIST_AUTOACTIVATION_DELAY, 4, 0, true);
 206                 fAutoInsertDelayLabel= getLabelControl(labelledTextField);
 207                 fAutoInsertDelayText= getTextControl(labelledTextField);
 208
 209                 label= PreferencesMessages.getString("JavaEditorPreferencePage.autoActivationTriggersForJava"); //$NON-NLS-1$
 210                 labelledTextField= addLabelledTextField(contentAssistComposite, label, PreferenceConstants.CODEASSIST_AUTOACTIVATION_TRIGGERS_JAVA, 4, 0, false);
 211                 fAutoInsertJavaTriggerLabel= getLabelControl(labelledTextField);
 212                 fAutoInsertJavaTriggerText= getTextControl(labelledTextField);
 213
 214                 label= PreferencesMessages.getString("JavaEditorPreferencePage.autoActivationTriggersForJavaDoc"); //$NON-NLS-1$
 215                 labelledTextField= addLabelledTextField(contentAssistComposite, label, PreferenceConstants.CODEASSIST_AUTOACTIVATION_TRIGGERS_JAVADOC, 4, 0, false);
 216                 fAutoInsertJavaDocTriggerLabel= getLabelControl(labelledTextField);
 217                 fAutoInsertJavaDocTriggerText= getTextControl(labelledTextField);
 218
 219                 label= PreferencesMessages.getString("JavaEditorPreferencePage.autoActivationTriggersForHTML"); //$NON-NLS-1$
 220                 labelledTextField= addLabelledTextField(contentAssistComposite, label, PreferenceConstants.CODEASSIST_AUTOACTIVATION_TRIGGERS_HTML, 4, 0, false);
 221                 fAutoInsertHTMLTriggerLabel= getLabelControl(labelledTextField);
 222                 fAutoInsertHTMLTriggerText= getTextControl(labelledTextField);
 223
 224                 Label l= new Label(contentAssistComposite, SWT.LEFT);
 225                 l.setText(PreferencesMessages.getString("JavaEditorPreferencePage.codeAssist.colorOptions")); //$NON-NLS-1$
 226                 GridData gd= new GridData(GridData.HORIZONTAL_ALIGN_FILL);
 227                 gd.horizontalSpan= 2;
 228                 l.setLayoutData(gd);
 229
 230                 Composite editorComposite= new Composite(contentAssistComposite, SWT.NONE);
 231                 layout= new GridLayout();
 232                 layout.numColumns= 2;
 233                 layout.marginHeight= 0;
 234                 layout.marginWidth= 0;
 235                 editorComposite.setLayout(layout);
 236                 gd= new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.FILL_VERTICAL);
 237                 gd.horizontalSpan= 2;
 238                 editorComposite.setLayoutData(gd);
 239
 240                 fContentAssistColorList= new List(editorComposite, SWT.SINGLE | SWT.V_SCROLL | SWT.BORDER);
 241                 gd= new GridData(GridData.VERTICAL_ALIGN_BEGINNING | GridData.FILL_HORIZONTAL);
 242                 gd.heightHint= pixelConverter.convertHeightInCharsToPixels(8);
 243                 fContentAssistColorList.setLayoutData(gd);
 244
 245                 Composite stylesComposite= new Composite(editorComposite, SWT.NONE);
 246                 layout= new GridLayout();
 247                 layout.marginHeight= 0;
 248                 layout.marginWidth= 0;
 249                 layout.numColumns= 2;
 250                 stylesComposite.setLayout(layout);
 251                 stylesComposite.setLayoutData(new GridData(GridData.FILL_BOTH));
 252
 253                 l= new Label(stylesComposite, SWT.LEFT);
 254                 l.setText(PreferencesMessages.getString("JavaEditorPreferencePage.codeAssist.color")); //$NON-NLS-1$
 255                 gd= new GridData();
 256                 gd.horizontalAlignment= GridData.BEGINNING;
 257                 l.setLayoutData(gd);
 258
 259                 fContentAssistColorEditor= new ColorEditor(stylesComposite);
 260                 Button colorButton= fContentAssistColorEditor.getButton();
 261                 gd= new GridData(GridData.FILL_HORIZONTAL);
 262                 gd.horizontalAlignment= GridData.BEGINNING;
 263                 colorButton.setLayoutData(gd);
 264
 265                 fContentAssistColorList.addSelectionListener(new SelectionListener() {
 266                         public void widgetDefaultSelected(SelectionEvent e) {
 267                                 // do nothing
 268                         }
 269                         public void widgetSelected(SelectionEvent e) {
 270                                 handleContentAssistColorListSelection();
 271                         }
 272                 });
 273                 colorButton.addSelectionListener(new SelectionListener() {
 274                         public void widgetDefaultSelected(SelectionEvent e) {
 275                                 // do nothing
 276                         }
 277                         public void widgetSelected(SelectionEvent e) {
 278                                 int i= fContentAssistColorList.getSelectionIndex();
 279                                 String key= fContentAssistColorListModel[i][1];
 280
 281                                 PreferenceConverter.setValue(fStore, key, fContentAssistColorEditor.getColorValue());
 282                         }
 283                 });
 284
 285                 return contentAssistComposite;
 286         }
 287
 288         private void createDependency(final Button master, String masterKey, final Control slave) {
 289                 indent(slave);
 290                 boolean masterState= fStore.getBoolean(masterKey);
 291                 slave.setEnabled(masterState);
 292                 SelectionListener listener= new SelectionListener() {
 293                         public void widgetSelected(SelectionEvent e) {
 294                                 slave.setEnabled(master.getSelection());
 295                         }
 296
 297                         public void widgetDefaultSelected(SelectionEvent e) {}
 298                 };
 299                 master.addSelectionListener(listener);
 300                 fMasterSlaveListeners.add(listener);
 301         }
 302
 303         private static void indent(Control control) {
 304                 GridData gridData= new GridData();
 305                 gridData.horizontalIndent= 20;
 306                 control.setLayoutData(gridData);
 307         }
 308
 309         private static Text getTextControl(Control[] labelledTextField){
 310                 return (Text)labelledTextField[1];
 311         }
 312
 313         private static Label getLabelControl(Control[] labelledTextField){
 314                 return (Label)labelledTextField[0];
 315         }
 316
 317         /**
 318          * Returns an array of size 2:
 319          *  - first element is of type <code>Label</code>
 320          *  - second element is of type <code>Text</code>
 321          * Use <code>getLabelControl</code> and <code>getTextControl</code> to get the 2 controls.
 322          *
 323          * @param composite     the parent composite
 324          * @param label                 the text field's label
 325          * @param key                   the preference key
 326          * @param textLimit             the text limit
 327          * @param indentation   the field's indentation
 328          * @param isNumber              <code>true</code> iff this text field is used to e4dit a number
 329          * @return
 330          */
 331         private Control[] addLabelledTextField(Composite composite, String label, String key, int textLimit, int indentation, boolean isNumber) {
 332
 333                 PixelConverter pixelConverter= new PixelConverter(composite);
 334
 335                 Label labelControl= new Label(composite, SWT.NONE);
 336                 labelControl.setText(label);
 337                 GridData gd= new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING);
 338                 gd.horizontalIndent= indentation;
 339                 labelControl.setLayoutData(gd);
 340
 341                 Text textControl= new Text(composite, SWT.BORDER | SWT.SINGLE);
 342                 gd= new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING);
 343                 gd.widthHint= pixelConverter.convertWidthInCharsToPixels(textLimit + 1);
 344                 textControl.setLayoutData(gd);
 345                 textControl.setTextLimit(textLimit);
 346                 fTextFields.put(textControl, key);
 347                 if (isNumber) {
 348                         fNumberFields.add(textControl);
 349                         textControl.addModifyListener(fNumberFieldListener);
 350                 } else {
 351                         textControl.addModifyListener(fTextFieldListener);
 352                 }
 353
 354                 return new Control[]{labelControl, textControl};
 355         }
 356
 357         private void addCompletionRadioButtons(Composite contentAssistComposite) {
 358                 Composite completionComposite= new Composite(contentAssistComposite, SWT.NONE);
 359                 GridData ccgd= new GridData();
 360                 ccgd.horizontalSpan= 2;
 361                 completionComposite.setLayoutData(ccgd);
 362                 GridLayout ccgl= new GridLayout();
 363                 ccgl.marginWidth= 0;
 364                 ccgl.numColumns= 2;
 365                 completionComposite.setLayout(ccgl);
 366
 367 //              SelectionListener completionSelectionListener= new SelectionAdapter() {
 368 //                      public void widgetSelected(SelectionEvent e) {
 369 //                              boolean insert= fCompletionInsertsRadioButton.getSelection();
 370 //                              fStore.setValue(PreferenceConstants.CODEASSIST_INSERT_COMPLETION, insert);
 371 //                      }
 372 //              };
 373 //
 374 //              fCompletionInsertsRadioButton= new Button(completionComposite, SWT.RADIO | SWT.LEFT);
 375 //              fCompletionInsertsRadioButton.setText(PreferencesMessages.getString("JavaEditorPreferencePage.completionInserts")); //$NON-NLS-1$
 376 //              fCompletionInsertsRadioButton.setLayoutData(new GridData());
 377 //              fCompletionInsertsRadioButton.addSelectionListener(completionSelectionListener);
 378 //
 379 //              fCompletionOverwritesRadioButton= new Button(completionComposite, SWT.RADIO | SWT.LEFT);
 380 //              fCompletionOverwritesRadioButton.setText(PreferencesMessages.getString("JavaEditorPreferencePage.completionOverwrites")); //$NON-NLS-1$
 381 //              fCompletionOverwritesRadioButton.setLayoutData(new GridData());
 382 //              fCompletionOverwritesRadioButton.addSelectionListener(completionSelectionListener);
 383         }
 384
 385         public void initialize() {
 386                 initializeFields();
 387
 388                 for (int i= 0; i < fContentAssistColorListModel.length; i++)
 389                         fContentAssistColorList.add(fContentAssistColorListModel[i][0]);
 390                 fContentAssistColorList.getDisplay().asyncExec(new Runnable() {
 391                         public void run() {
 392                                 if (fContentAssistColorList != null && !fContentAssistColorList.isDisposed()) {
 393                                         fContentAssistColorList.select(0);
 394                                         handleContentAssistColorListSelection();
 395                                 }
 396                         }
 397                 });
 398
 399         }
 400
 401         void initializeFields() {
 402                 Iterator e= fCheckBoxes.keySet().iterator();
 403                 while (e.hasNext()) {
 404                         Button b= (Button) e.next();
 405                         String key= (String) fCheckBoxes.get(b);
 406                         b.setSelection(fStore.getBoolean(key));
 407                 }
 408
 409                 e= fTextFields.keySet().iterator();
 410                 while (e.hasNext()) {
 411                         Text t= (Text) e.next();
 412                         String key= (String) fTextFields.get(t);
 413                         t.setText(fStore.getString(key));
 414                 }
 415
 416 //              boolean completionInserts= fStore.getBoolean(PreferenceConstants.CODEASSIST_INSERT_COMPLETION);
 417 //              fCompletionInsertsRadioButton.setSelection(completionInserts);
 418 //              fCompletionOverwritesRadioButton.setSelection(! completionInserts);
 419
 420                 updateAutoactivationControls();
 421
 422         updateStatus(validatePositiveNumber("0")); //$NON-NLS-1$
 423
 424         // Update slaves
 425         Iterator iter= fMasterSlaveListeners.iterator();
 426         while (iter.hasNext()) {
 427             SelectionListener listener= (SelectionListener)iter.next();
 428             listener.widgetSelected(null);
 429         }
 430         }
 431
 432     private void updateAutoactivationControls() {
 433         boolean autoactivation= fStore.getBoolean(PreferenceConstants.CODEASSIST_AUTOACTIVATION);
 434         fAutoInsertDelayText.setEnabled(autoactivation);
 435                 fAutoInsertDelayLabel.setEnabled(autoactivation);
 436
 437         fAutoInsertJavaTriggerText.setEnabled(autoactivation);
 438                 fAutoInsertJavaTriggerLabel.setEnabled(autoactivation);
 439
 440         fAutoInsertJavaDocTriggerText.setEnabled(autoactivation);
 441                 fAutoInsertJavaDocTriggerLabel.setEnabled(autoactivation);
 442
 443                 fAutoInsertHTMLTriggerText.setEnabled(autoactivation);
 444                 fAutoInsertHTMLTriggerLabel.setEnabled(autoactivation);
 445     }
 446
 447         public void performOk() {
 448         }
 449
 450         public  void performDefaults() {
 451                 handleContentAssistColorListSelection();
 452                 initializeFields();
 453         }
 454
 455         private void handleContentAssistColorListSelection() {
 456                 int i= fContentAssistColorList.getSelectionIndex();
 457                 String key= fContentAssistColorListModel[i][1];
 458                 RGB rgb= PreferenceConverter.getColor(fStore, key);
 459                 fContentAssistColorEditor.setColorValue(rgb);
 460         }
 461
 462         private void numberFieldChanged(Text textControl) {
 463                 String number= textControl.getText();
 464                 IStatus status= validatePositiveNumber(number);
 465                 if (!status.matches(IStatus.ERROR))
 466                         fStore.setValue((String) fTextFields.get(textControl), number);
 467                 updateStatus(status);
 468         }
 469
 470         private IStatus validatePositiveNumber(String number) {
 471                 StatusInfo status= new StatusInfo();
 472                 if (number.length() == 0) {
 473                         status.setError(PreferencesMessages.getString("JavaEditorPreferencePage.empty_input")); //$NON-NLS-1$
 474                 } else {
 475                         try {
 476                                 int value= Integer.parseInt(number);
 477                                 if (value < 0)
 478                                         status.setError(PreferencesMessages.getFormattedString("JavaEditorPreferencePage.invalid_input", number)); //$NON-NLS-1$
 479                         } catch (NumberFormatException e) {
 480                                 status.setError(PreferencesMessages.getFormattedString("JavaEditorPreferencePage.invalid_input", number)); //$NON-NLS-1$
 481                         }
 482                 }
 483                 return status;
 484         }
 485
 486         private void updateStatus(IStatus status) {
 487                 fMainPreferencePage.setValid(status.isOK());
 488                 StatusUtil.applyToStatusLine(fMainPreferencePage, status);
 489         }
 490
 491         private Button addCheckBox(Composite parent, String label, String key, int indentation) {
 492                 Button checkBox= new Button(parent, SWT.CHECK);
 493                 checkBox.setText(label);
 494
 495                 GridData gd= new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING);
 496                 gd.horizontalIndent= indentation;
 497                 gd.horizontalSpan= 2;
 498                 checkBox.setLayoutData(gd);
 499                 checkBox.addSelectionListener(fCheckBoxListener);
 500
 501                 fCheckBoxes.put(checkBox, key);
 502
 503                 return checkBox;
 504         }
 505
 506         /*
 507          * @see DialogPage#dispose()
 508          */
 509         public void dispose() {
 510                 // nothing to dispose
 511         }
 512 }