How to use

disableRedrawing

method

in

org.eclipse.jface.text.TextViewer

/**
 * Basically same functionality as <code>ITextViewerExtension.setRedraw(boolean)</code>. Adds a
 * way for subclasses to pass in a desired top index that should be used when
 * <code>redraw</code> is <code>true</code>. If <code>topIndex</code> is -1, this method is
 * identical to <code>ITextViewerExtension.setRedraw(boolean)</code>.
 *
 * @see ITextViewerExtension#setRedraw(boolean)
 *
 * @param redraw <code>true</code> if redraw is enabled
 * @param topIndex the top index
 * @since 3.0
 */
protected final void setRedraw(boolean redraw, int topIndex) {
  if (!redraw) {
    ++ fRedrawCounter;
    if (fRedrawCounter == 1)
      disableRedrawing();
  } else {
    -- fRedrawCounter;
    if (fRedrawCounter == 0) {
      if (topIndex == -1)
        enabledRedrawing();
      else
        enabledRedrawing(topIndex);
    }
  }
}

/**
 * Basically same functionality as <code>ITextViewerExtension.setRedraw(boolean)</code>. Adds a
 * way for subclasses to pass in a desired top index that should be used when
 * <code>redraw</code> is <code>true</code>. If <code>topIndex</code> is -1, this method is
 * identical to <code>ITextViewerExtension.setRedraw(boolean)</code>.
 *
 * @see ITextViewerExtension#setRedraw(boolean)
 *
 * @param redraw <code>true</code> if redraw is enabled
 * @param topIndex the top index
 * @since 3.0
 */
protected final void setRedraw(boolean redraw, int topIndex) {
  if (!redraw) {
    ++ fRedrawCounter;
    if (fRedrawCounter == 1)
      disableRedrawing();
  } else {
    -- fRedrawCounter;
    if (fRedrawCounter == 0) {
      if (topIndex == -1)
        enabledRedrawing();
      else
        enabledRedrawing(topIndex);
    }
  }
}