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   1 /*
   2  * (c) Copyright IBM Corp. 2000, 2001.
   3  * All Rights Reserved.
   4  */
   5 package net.sourceforge.phpdt.internal.ui.preferences;
   6
   7 import java.io.BufferedReader;
   8 import java.io.IOException;
   9 import java.io.InputStreamReader;
  10 import java.util.ArrayList;
  11 import java.util.Hashtable;
  12
  13 import net.sourceforge.phpdt.core.ICodeFormatter;
  14 import net.sourceforge.phpdt.core.JavaCore;
  15 import net.sourceforge.phpdt.core.ToolFactory;
  16 import net.sourceforge.phpdt.internal.ui.PHPUIMessages;
  17 import net.sourceforge.phpdt.internal.ui.dialogs.StatusInfo;
  18 import net.sourceforge.phpdt.internal.ui.dialogs.StatusUtil;
  19 import net.sourceforge.phpdt.internal.ui.util.TabFolderLayout;
  20 import net.sourceforge.phpeclipse.PHPeclipsePlugin;
  21
  22 import org.eclipse.core.runtime.IStatus;
  23 import org.eclipse.jface.preference.PreferencePage;
  24 import org.eclipse.jface.text.Document;
  25 import org.eclipse.jface.text.IDocument;
  26 import org.eclipse.swt.SWT;
  27 import org.eclipse.swt.events.ModifyEvent;
  28 import org.eclipse.swt.events.ModifyListener;
  29 import org.eclipse.swt.events.SelectionEvent;
  30 import org.eclipse.swt.events.SelectionListener;
  31 import org.eclipse.swt.layout.GridData;
  32 import org.eclipse.swt.layout.GridLayout;
  33 import org.eclipse.swt.widgets.Button;
  34 import org.eclipse.swt.widgets.Composite;
  35 import org.eclipse.swt.widgets.Control;
  36 import org.eclipse.swt.widgets.Label;
  37 import org.eclipse.swt.widgets.TabFolder;
  38 import org.eclipse.swt.widgets.TabItem;
  39 import org.eclipse.swt.widgets.Text;
  40 import org.eclipse.ui.IWorkbench;
  41 import org.eclipse.ui.IWorkbenchPreferencePage;
  42
  43 /*
  44  * The page for setting code formatter options
  45  */
  46 public class CodeFormatterPreferencePage extends PreferencePage implements
  47                 IWorkbenchPreferencePage {
  48
  49         // Preference store keys, see PHPCore.getOptions
  50         private static final String PREF_NEWLINE_OPENING_BRACES = JavaCore.FORMATTER_NEWLINE_OPENING_BRACE;
  51
  52         private static final String PREF_NEWLINE_CONTROL_STATEMENT = JavaCore.FORMATTER_NEWLINE_CONTROL;
  53
  54         private static final String PREF_NEWLINE_CLEAR_ALL = JavaCore.FORMATTER_CLEAR_BLANK_LINES;
  55
  56         // private static final String PREF_NEWLINE_ELSE_IF=
  57         // PHPCore.FORMATTER_NEWLINE_ELSE_IF;
  58         private static final String PREF_NEWLINE_EMPTY_BLOCK = JavaCore.FORMATTER_NEWLINE_EMPTY_BLOCK;
  59
  60         private static final String PREF_LINE_SPLIT = JavaCore.FORMATTER_LINE_SPLIT;
  61
  62         private static final String PREF_STYLE_COMPACT_ASSIGNEMENT = JavaCore.FORMATTER_COMPACT_ASSIGNMENT;
  63
  64         private static final String PREF_TAB_CHAR = JavaCore.FORMATTER_TAB_CHAR;
  65
  66         private static final String PREF_TAB_SIZE = JavaCore.FORMATTER_TAB_SIZE;
  67
  68         // values
  69         private static final String INSERT = JavaCore.INSERT;
  70
  71         private static final String DO_NOT_INSERT = JavaCore.DO_NOT_INSERT;
  72
  73         private static final String COMPACT = JavaCore.COMPACT;
  74
  75         private static final String NORMAL = JavaCore.NORMAL;
  76
  77         private static final String TAB = JavaCore.TAB;
  78
  79         private static final String SPACE = JavaCore.SPACE;
  80
  81         private static final String CLEAR_ALL = JavaCore.CLEAR_ALL;
  82
  83         private static final String PRESERVE_ONE = JavaCore.PRESERVE_ONE;
  84
  85         private static String[] getAllKeys() {
  86                 return new String[] { PREF_NEWLINE_OPENING_BRACES,
  87                                 PREF_NEWLINE_CONTROL_STATEMENT, PREF_NEWLINE_CLEAR_ALL,
  88                                 // PREF_NEWLINE_ELSE_IF,
  89                                 PREF_NEWLINE_EMPTY_BLOCK, PREF_LINE_SPLIT,
  90                                 PREF_STYLE_COMPACT_ASSIGNEMENT, PREF_TAB_CHAR, PREF_TAB_SIZE };
  91         }
  92
  93         /**
  94          * Gets the currently configured tab size
  95          *
  96          * @deprecated Inline to avoid reference to preference page
  97          */
  98         public static int getTabSize() {
  99                 String string = (String) JavaCore.getOptions().get(PREF_TAB_SIZE);
 100                 return getPositiveIntValue(string, 4);
 101         }
 102
 103         /**
 104          * Gets the current compating assignement configuration
 105          *
 106          * @deprecated Inline to avoid reference to preference page
 107          */
 108         public static boolean isCompactingAssignment() {
 109                 return COMPACT.equals(JavaCore.getOptions().get(
 110                                 PREF_STYLE_COMPACT_ASSIGNEMENT));
 111         }
 112
 113         /**
 114          * Gets the current compating assignement configuration
 115          *
 116          * @deprecated Inline to avoid reference to preference page
 117          */
 118         public static boolean useSpaces() {
 119                 return SPACE.equals(JavaCore.getOptions().get(PREF_TAB_CHAR));
 120         }
 121
 122         private static int getPositiveIntValue(String string, int dflt) {
 123                 try {
 124                         int i = Integer.parseInt(string);
 125                         if (i >= 0) {
 126                                 return i;
 127                         }
 128                 } catch (NumberFormatException e) {
 129                 }
 130                 return dflt;
 131         }
 132
 133         private static class ControlData {
 134                 private String fKey;
 135
 136                 private String[] fValues;
 137
 138                 public ControlData(String key, String[] values) {
 139                         fKey = key;
 140                         fValues = values;
 141                 }
 142
 143                 public String getKey() {
 144                         return fKey;
 145                 }
 146
 147                 public String getValue(boolean selection) {
 148                         int index = selection ? 0 : 1;
 149                         return fValues[index];
 150                 }
 151
 152                 public String getValue(int index) {
 153                         return fValues[index];
 154                 }
 155
 156                 public int getSelection(String value) {
 157                         for (int i = 0; i < fValues.length; i++) {
 158                                 if (value.equals(fValues[i])) {
 159                                         return i;
 160                                 }
 161                         }
 162                         throw new IllegalArgumentException();
 163                 }
 164         }
 165
 166         private Hashtable fWorkingValues;
 167
 168         private ArrayList fCheckBoxes;
 169
 170         private ArrayList fTextBoxes;
 171
 172         private SelectionListener fButtonSelectionListener;
 173
 174         private ModifyListener fTextModifyListener;
 175
 176         private String fPreviewText;
 177
 178         private IDocument fPreviewDocument;
 179
 180         private Text fTabSizeTextBox;
 181
 182         // private SourceViewer fSourceViewer;
 183
 184         public CodeFormatterPreferencePage() {
 185                 setPreferenceStore(PHPeclipsePlugin.getDefault().getPreferenceStore());
 186                 setDescription(PHPUIMessages
 187                                 .getString("CodeFormatterPreferencePage.description")); //$NON-NLS-1$
 188
 189                 fWorkingValues = JavaCore.getOptions();
 190                 fCheckBoxes = new ArrayList();
 191                 fTextBoxes = new ArrayList();
 192
 193                 fButtonSelectionListener = new SelectionListener() {
 194                         public void widgetDefaultSelected(SelectionEvent e) {
 195                         }
 196
 197                         public void widgetSelected(SelectionEvent e) {
 198                                 if (!e.widget.isDisposed()) {
 199                                         controlChanged((Button) e.widget);
 200                                 }
 201                         }
 202                 };
 203
 204                 fTextModifyListener = new ModifyListener() {
 205                         public void modifyText(ModifyEvent e) {
 206                                 if (!e.widget.isDisposed()) {
 207                                         textChanged((Text) e.widget);
 208                                 }
 209                         }
 210                 };
 211
 212                 fPreviewDocument = new Document();
 213                 fPreviewText = loadPreviewFile("CodeFormatterPreviewCode.txt"); //$NON-NLS-1$
 214         }
 215
 216         /*
 217          * @see IWorkbenchPreferencePage#init()
 218          */
 219         public void init(IWorkbench workbench) {
 220         }
 221
 222         /*
 223          * @see PreferencePage#createControl(Composite)
 224          */
 225         public void createControl(Composite parent) {
 226                 super.createControl(parent);
 227                 // WorkbenchHelp.setHelp(getControl(),
 228                 // IJavaHelpContextIds.CODEFORMATTER_PREFERENCE_PAGE);
 229         }
 230
 231         /*
 232          * @see PreferencePage#createContents(Composite)
 233          */
 234         protected Control createContents(Composite parent) {
 235
 236                 GridLayout layout = new GridLayout();
 237                 layout.marginHeight = 0;
 238                 layout.marginWidth = 0;
 239
 240                 Composite composite = new Composite(parent, SWT.NONE);
 241                 composite.setLayout(layout);
 242
 243                 TabFolder folder = new TabFolder(composite, SWT.NONE);
 244                 folder.setLayout(new TabFolderLayout());
 245                 folder.setLayoutData(new GridData(GridData.FILL_BOTH));
 246
 247                 String[] insertNotInsert = new String[] { INSERT, DO_NOT_INSERT };
 248
 249                 layout = new GridLayout();
 250                 layout.numColumns = 2;
 251
 252                 Composite newlineComposite = new Composite(folder, SWT.NULL);
 253                 newlineComposite.setLayout(layout);
 254
 255                 String label = PHPUIMessages
 256                                 .getString("CodeFormatterPreferencePage.newline_opening_braces.label"); //$NON-NLS-1$
 257                 addCheckBox(newlineComposite, label, PREF_NEWLINE_OPENING_BRACES,
 258                                 insertNotInsert);
 259
 260                 label = PHPUIMessages
 261                                 .getString("CodeFormatterPreferencePage.newline_control_statement.label"); //$NON-NLS-1$
 262                 addCheckBox(newlineComposite, label, PREF_NEWLINE_CONTROL_STATEMENT,
 263                                 insertNotInsert);
 264
 265                 label = PHPUIMessages
 266                                 .getString("CodeFormatterPreferencePage.newline_clear_lines"); //$NON-NLS-1$
 267                 addCheckBox(newlineComposite, label, PREF_NEWLINE_CLEAR_ALL,
 268                                 new String[] { CLEAR_ALL, PRESERVE_ONE });
 269
 270                 // label=
 271                 // PHPUIMessages.getString("CodeFormatterPreferencePage.newline_else_if.label");
 272                 // //$NON-NLS-1$
 273                 // addCheckBox(newlineComposite, label, PREF_NEWLINE_ELSE_IF,
 274                 // insertNotInsert);
 275
 276                 label = PHPUIMessages
 277                                 .getString("CodeFormatterPreferencePage.newline_empty_block.label"); //$NON-NLS-1$
 278                 addCheckBox(newlineComposite, label, PREF_NEWLINE_EMPTY_BLOCK,
 279                                 insertNotInsert);
 280
 281                 layout = new GridLayout();
 282                 layout.numColumns = 2;
 283
 284                 Composite lineSplittingComposite = new Composite(folder, SWT.NULL);
 285                 lineSplittingComposite.setLayout(layout);
 286
 287                 label = PHPUIMessages
 288                                 .getString("CodeFormatterPreferencePage.split_line.label"); //$NON-NLS-1$
 289                 addTextField(lineSplittingComposite, label, PREF_LINE_SPLIT);
 290
 291                 layout = new GridLayout();
 292                 layout.numColumns = 2;
 293
 294                 Composite styleComposite = new Composite(folder, SWT.NULL);
 295                 styleComposite.setLayout(layout);
 296
 297                 label = PHPUIMessages
 298                                 .getString("CodeFormatterPreferencePage.style_compact_assignement.label"); //$NON-NLS-1$
 299                 addCheckBox(styleComposite, label, PREF_STYLE_COMPACT_ASSIGNEMENT,
 300                                 new String[] { COMPACT, NORMAL });
 301
 302                 label = PHPUIMessages
 303                                 .getString("CodeFormatterPreferencePage.tab_char.label"); //$NON-NLS-1$
 304                 addCheckBox(styleComposite, label, PREF_TAB_CHAR, new String[] { TAB,
 305                                 SPACE });
 306
 307                 label = PHPUIMessages
 308                                 .getString("CodeFormatterPreferencePage.tab_size.label"); //$NON-NLS-1$
 309                 fTabSizeTextBox = addTextField(styleComposite, label, PREF_TAB_SIZE);
 310
 311                 TabItem item = new TabItem(folder, SWT.NONE);
 312                 item.setText(PHPUIMessages
 313                                 .getString("CodeFormatterPreferencePage.tab.newline.tabtitle")); //$NON-NLS-1$
 314                 item.setControl(newlineComposite);
 315
 316                 item = new TabItem(folder, SWT.NONE);
 317                 item
 318                                 .setText(PHPUIMessages
 319                                                 .getString("CodeFormatterPreferencePage.tab.linesplit.tabtitle")); //$NON-NLS-1$
 320                 item.setControl(lineSplittingComposite);
 321
 322                 item = new TabItem(folder, SWT.NONE);
 323                 item.setText(PHPUIMessages
 324                                 .getString("CodeFormatterPreferencePage.tab.style.tabtitle")); //$NON-NLS-1$
 325                 item.setControl(styleComposite);
 326
 327                 // fSourceViewer= createPreview(parent);
 328
 329                 updatePreview();
 330
 331                 return composite;
 332         }
 333
 334         // private SourceViewer createPreview(Composite parent) {
 335         // SourceViewer previewViewer= new SourceViewer(parent, null, SWT.V_SCROLL |
 336         // SWT.H_SCROLL | SWT.BORDER);
 337         // JavaTextTools tools= JavaPlugin.getDefault().getJavaTextTools();
 338         // previewViewer.configure(new PHPSourceViewerConfiguration(tools, null));
 339         // previewViewer.getTextWidget().setFont(JFaceResources.getFontRegistry().get(JFaceResources.TEXT_FONT));
 340         // previewViewer.getTextWidget().setTabs(getPositiveIntValue((String)
 341         // fWorkingValues.get(PREF_TAB_SIZE), 0));
 342         // previewViewer.setEditable(false);
 343         // previewViewer.setDocument(fPreviewDocument);
 344         // Control control= previewViewer.getControl();
 345         // GridData gdata= new GridData(GridData.FILL_BOTH);
 346         // gdata.widthHint= convertWidthInCharsToPixels(30);
 347         // gdata.heightHint= convertHeightInCharsToPixels(5);
 348         // control.setLayoutData(gdata);
 349         // return previewViewer;
 350         // }
 351
 352         private Button addCheckBox(Composite parent, String label, String key,
 353                         String[] values) {
 354                 ControlData data = new ControlData(key, values);
 355
 356                 GridData gd = new GridData(GridData.FILL_HORIZONTAL);
 357                 gd.horizontalSpan = 2;
 358
 359                 Button checkBox = new Button(parent, SWT.CHECK);
 360                 checkBox.setText(label);
 361                 checkBox.setData(data);
 362                 checkBox.setLayoutData(gd);
 363
 364                 String currValue = (String) fWorkingValues.get(key);
 365                 checkBox.setSelection(data.getSelection(currValue) == 0);
 366                 checkBox.addSelectionListener(fButtonSelectionListener);
 367
 368                 fCheckBoxes.add(checkBox);
 369                 return checkBox;
 370         }
 371
 372         private Text addTextField(Composite parent, String label, String key) {
 373                 Label labelControl = new Label(parent, SWT.NONE);
 374                 labelControl.setText(label);
 375                 labelControl.setLayoutData(new GridData());
 376
 377                 Text textBox = new Text(parent, SWT.BORDER | SWT.SINGLE);
 378                 textBox.setData(key);
 379                 textBox.setLayoutData(new GridData());
 380
 381                 String currValue = (String) fWorkingValues.get(key);
 382                 textBox.setText(String.valueOf(getPositiveIntValue(currValue, 1)));
 383                 textBox.setTextLimit(3);
 384                 textBox.addModifyListener(fTextModifyListener);
 385
 386                 GridData gd = new GridData();
 387                 gd.widthHint = convertWidthInCharsToPixels(5);
 388                 textBox.setLayoutData(gd);
 389
 390                 fTextBoxes.add(textBox);
 391                 return textBox;
 392         }
 393
 394         private void controlChanged(Button button) {
 395                 ControlData data = (ControlData) button.getData();
 396                 boolean selection = button.getSelection();
 397                 String newValue = data.getValue(selection);
 398                 fWorkingValues.put(data.getKey(), newValue);
 399                 updatePreview();
 400
 401                 if (PREF_TAB_CHAR.equals(data.getKey())) {
 402                         updateStatus(new StatusInfo());
 403                         if (selection) {
 404                                 fTabSizeTextBox.setText((String) fWorkingValues
 405                                                 .get(PREF_TAB_SIZE));
 406                         }
 407                 }
 408         }
 409
 410         private void textChanged(Text textControl) {
 411                 String key = (String) textControl.getData();
 412                 String number = textControl.getText();
 413                 IStatus status = validatePositiveNumber(number);
 414                 if (!status.matches(IStatus.ERROR)) {
 415                         fWorkingValues.put(key, number);
 416                 }
 417                 // if (PREF_TAB_SIZE.equals(key)) {
 418                 // fSourceViewer.getTextWidget().setTabs(getPositiveIntValue(number,
 419                 // 0));
 420                 // }
 421                 updateStatus(status);
 422                 updatePreview();
 423         }
 424
 425         /*
 426          * @see IPreferencePage#performOk()
 427          */
 428         public boolean performOk() {
 429                 String[] allKeys = getAllKeys();
 430                 // preserve other options
 431                 // store in JCore
 432                 Hashtable actualOptions = JavaCore.getOptions();
 433                 for (int i = 0; i < allKeys.length; i++) {
 434                         String key = allKeys[i];
 435                         String val = (String) fWorkingValues.get(key);
 436                         actualOptions.put(key, val);
 437                 }
 438                 JavaCore.setOptions(actualOptions);
 439                 PHPeclipsePlugin.getDefault().savePluginPreferences();
 440                 return super.performOk();
 441         }
 442
 443         /*
 444          * @see PreferencePage#performDefaults()
 445          */
 446         protected void performDefaults() {
 447                 fWorkingValues = JavaCore.getDefaultOptions();
 448                 updateControls();
 449                 super.performDefaults();
 450         }
 451
 452         private String loadPreviewFile(String filename) {
 453                 String separator = System.getProperty("line.separator"); //$NON-NLS-1$
 454                 StringBuffer btxt = new StringBuffer(512);
 455                 BufferedReader rin = null;
 456                 try {
 457                         rin = new BufferedReader(new InputStreamReader(getClass()
 458                                         .getResourceAsStream(filename)));
 459                         String line;
 460                         while ((line = rin.readLine()) != null) {
 461                                 btxt.append(line);
 462                                 btxt.append(separator);
 463                         }
 464                 } catch (IOException io) {
 465                         PHPeclipsePlugin.log(io);
 466                 } finally {
 467                         if (rin != null) {
 468                                 try {
 469                                         rin.close();
 470                                 } catch (IOException e) {
 471                                 }
 472                         }
 473                 }
 474                 return btxt.toString();
 475         }
 476
 477         private void updatePreview() {
 478                 ICodeFormatter formatter = ToolFactory
 479                                 .createDefaultCodeFormatter(fWorkingValues);
 480                 fPreviewDocument.set(formatter.format(fPreviewText, 0, null, "\n")); //$NON-NLS-1$
 481         }
 482
 483         private void updateControls() {
 484                 // update the UI
 485                 for (int i = fCheckBoxes.size() - 1; i >= 0; i--) {
 486                         Button curr = (Button) fCheckBoxes.get(i);
 487                         ControlData data = (ControlData) curr.getData();
 488
 489                         String currValue = (String) fWorkingValues.get(data.getKey());
 490                         curr.setSelection(data.getSelection(currValue) == 0);
 491                 }
 492                 for (int i = fTextBoxes.size() - 1; i >= 0; i--) {
 493                         Text curr = (Text) fTextBoxes.get(i);
 494                         String key = (String) curr.getData();
 495                         String currValue = (String) fWorkingValues.get(key);
 496                         curr.setText(currValue);
 497                 }
 498         }
 499
 500         private IStatus validatePositiveNumber(String number) {
 501                 StatusInfo status = new StatusInfo();
 502                 if (number.length() == 0) {
 503                         status.setError(PHPUIMessages
 504                                         .getString("CodeFormatterPreferencePage.empty_input")); //$NON-NLS-1$
 505                 } else {
 506                         try {
 507                                 int value = Integer.parseInt(number);
 508                                 if (value < 0) {
 509                                         status
 510                                                         .setError(PHPUIMessages
 511                                                                         .getFormattedString(
 512                                                                                         "CodeFormatterPreferencePage.invalid_input", number)); //$NON-NLS-1$
 513                                 }
 514                         } catch (NumberFormatException e) {
 515                                 status.setError(PHPUIMessages.getFormattedString(
 516                                                 "CodeFormatterPreferencePage.invalid_input", number)); //$NON-NLS-1$
 517                         }
 518                 }
 519                 return status;
 520         }
 521
 522         private void updateStatus(IStatus status) {
 523                 if (!status.matches(IStatus.ERROR)) {
 524                         // look if there are more severe errors
 525                         for (int i = 0; i < fTextBoxes.size(); i++) {
 526                                 Text curr = (Text) fTextBoxes.get(i);
 527                                 if (!(curr == fTabSizeTextBox && usesTabs())) {
 528                                         IStatus currStatus = validatePositiveNumber(curr.getText());
 529                                         status = StatusUtil.getMoreSevere(currStatus, status);
 530                                 }
 531                         }
 532                 }
 533                 setValid(!status.matches(IStatus.ERROR));
 534                 StatusUtil.applyToStatusLine(this, status);
 535         }
 536
 537         private boolean usesTabs() {
 538                 return TAB.equals(fWorkingValues.get(PREF_TAB_CHAR));
 539         }
 540
 541 }