How to use

addTextListener

method

in

org.eclipse.jface.text.TextViewer

/**
 * Installs this range. The range registers itself as background
 * line painter and text listener. Also, it creates a category with the
 * viewer's document to maintain its own extent.
 */
public void install() {
  TextViewer.this.addTextListener(this);
  fTextWidget.addLineBackgroundListener(this);
  IDocument document= TextViewer.this.getDocument();
  try {
    document.addPositionCategory(RANGE_CATEGORY);
    document.addPosition(RANGE_CATEGORY, fPosition);
    document.addPositionUpdater(this);
  } catch (BadPositionCategoryException e) {
    // should not happen
  } catch (BadLocationException e) {
    // should not happen
  }
  paint();
}

/**
 * Installs this range. The range registers itself as background
 * line painter and text listener. Also, it creates a category with the
 * viewer's document to maintain its own extent.
 */
public void install() {
  TextViewer.this.addTextListener(this);
  fTextWidget.addLineBackgroundListener(this);
  IDocument document= TextViewer.this.getDocument();
  try {
    document.addPositionCategory(RANGE_CATEGORY);
    document.addPosition(RANGE_CATEGORY, fPosition);
    document.addPositionUpdater(this);
  } catch (BadPositionCategoryException e) {
    // should not happen
  } catch (BadLocationException e) {
    // should not happen
  }
  paint();
}

fThread.setPriority(Thread.MIN_PRIORITY);
synchronized (fMutex) {
  fTextViewer.addTextListener(fStopper);
  fThread.start();

fThread.setPriority(Thread.MIN_PRIORITY);
synchronized (fMutex) {
  fTextViewer.addTextListener(fStopper);
  fThread.start();