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