Java 类org.eclipse.swt.custom.LineStyleListener 实例源码

public LineEditor(final SWTCanvas canvas, int style) {
        super(canvas, style, TrpTextLineType.class);

        textField = new StyledText(SWTUtil.dummyShell, SWT.SINGLE | SWT.BORDER);
        textField.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));
        // this one highlights words that are tagged:
        textField.addLineStyleListener(new LineStyleListener() {
            @Override
            public void lineGetStyle(LineStyleEvent event) {                
                if (shape==null)
                    return;

//              List<StyleRange> styleList = ATranscriptionWidget.getTagStylesForLine(shape, event.lineOffset);
//              event.styles = (StyleRange[]) ArrayUtils.addAll(event.styles, styleList.toArray(new StyleRange[0]));
            }
        });
        addWidget(textField);

        // autocomplete field:
        autocomplete = new TrpAutoCompleteField(textField, 
                new StyledTextContentAdapter(textField), new String[]{}, 
                KeyStroke.getInstance(SWT.CTRL, SWT.SPACE), null
                );
        autocomplete.getAdapter().setEnabled(false);
    }

public void show(String title, final String message, LineStyleListener listener) {
    initLayout();
    dialog.setText(title);
    text.setText(message);
    if (listener != null) {
        text.addLineStyleListener(listener);
    }
    dialog.pack();
    dialog.open();
}

public static void applyStyledFormat(StyledText text, String sql) {
    if (StringUtil.isEmpty(sql)) return;
    text.setText(sql);
    text.addLineStyleListener(new LineStyleListener() {
        public void lineGetStyle(LineStyleEvent event) {
            String line = event.lineText;
            LinkedList<StyleRange> list = new LinkedList<StyleRange>();
            line = line.toLowerCase();
            String[] tokens = StringUtil.tokenizer(line, " \n\r\f\t()+*/-=<>'`\"[],");
            if (tokens == null) return;
            HashSet<String> set = new HashSet<String>();
            for (int i = 0; i < tokens.length; i++) {
                set.add(tokens[i]);
            }
            for (int i = 0; i < key.length; i++) {
                if (set.contains(key[i])) {
                    int cursor = -1;
                    while ((cursor = line.indexOf(key[i], cursor + 1)) > -1) {
                        StyleRange sr = new StyleRange();
                        sr.start = event.lineOffset + cursor;
                        sr.length = key[i].length();
                        sr.foreground = Display.getCurrent().getSystemColor(SWT.COLOR_BLUE);
                        list.add(sr);
                    }
                }
            }
            event.styles = list.toArray(new StyleRange[list.size()]);
        }
    });
}

public SearchStyleText() {
  shell.setLayout(new GridLayout(2, false));

  styledText = new StyledText(shell, SWT.MULTI | SWT.WRAP | SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);
  GridData gridData = new GridData(GridData.FILL_BOTH);
  gridData.horizontalSpan = 2;    
  styledText.setLayoutData(gridData);

  keywordText = new Text(shell, SWT.SINGLE | SWT.BORDER);
  keywordText.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
  Font font = new Font(shell.getDisplay(), "Courier New", 12, SWT.NORMAL);
  styledText.setFont(font);

  button = new Button(shell, SWT.PUSH);
  button.setText("Search");
  button.addSelectionListener(new SelectionAdapter() {
    public void widgetSelected(SelectionEvent e) {
      keyword = keywordText.getText();
      styledText.redraw();
    }
  });

  styledText.addLineStyleListener(new LineStyleListener() {
    public void lineGetStyle(LineStyleEvent event) {
      if(keyword == null || keyword.length() == 0) {
        event.styles = new StyleRange[0];
        return;
      }

      String line = event.lineText;
      int cursor = -1;

      LinkedList list = new LinkedList();
      while( (cursor = line.indexOf(keyword, cursor+1)) >= 0) {
        list.add(getHighlightStyle(event.lineOffset+cursor, keyword.length()));
      }

      event.styles = (StyleRange[]) list.toArray(new StyleRange[list.size()]);
    }
  });

  keyword = "SW";

  styledText.setText("AWT, SWING \r\nSWT & JFACE");

  shell.pack();
  shell.open();
  //textUser.forceFocus();

  // Set up the event loop.
  while (!shell.isDisposed()) {
    if (!display.readAndDispatch()) {
      // If no more entries in event queue
      display.sleep();
    }
  }

  display.dispose();
}

public void addUserLineStyleListener(LineStyleListener l) {
    lineStyleListener.add(l);
    text.addLineStyleListener(l);
}

public void addLineStyleListener(LineStyleListener lineStyler){
    styledText.addLineStyleListener(lineStyler);    
}

public void addLineStyleListener(LineStyleListener lineStyler){
    styledText.addLineStyleListener(lineStyler);    
}

public void addLineStyleListener(LineStyleListener lineStyler){
    styledText.addLineStyleListener(lineStyler);    
}

public void addLineStyleListener(LineStyleListener lineStyler){
    styledText.addLineStyleListener(lineStyler);    
}

public void addLineStyleListener( LineStyleListener lineStyler ) {
  styledText.addLineStyleListener( lineStyler );
}