public BookmarkColumn() {
    super();
    fDelegate = new BookmarkRulerColumn();

   // some initialization (is it required? hz..) :
    new MarkerAnnotationPreferences().getAnnotationPreferences(); 
}
 

/**
 * Creates decoration support for the sourceViewer. code is entirely copied from
 * {@link XtextEditor} and its super class {@link AbstractDecoratedTextEditor}.
 *
 */
protected void configureSourceViewerDecorationSupport(SourceViewerDecorationSupport support) {
	MarkerAnnotationPreferences annotationPreferences = new MarkerAnnotationPreferences();
	List<AnnotationPreference> prefs = annotationPreferences.getAnnotationPreferences();
	for (AnnotationPreference annotationPreference : prefs) {
		support.setAnnotationPreference(annotationPreference);
	}

	support.setCharacterPairMatcher(getCharacterPairMatcher());
	support.setMatchingCharacterPainterPreferenceKeys(BracketMatchingPreferencesInitializer.IS_ACTIVE_KEY,
			BracketMatchingPreferencesInitializer.COLOR_KEY);

	support.install(getPreferenceStoreAccess().getPreferenceStore());
}
 

private void setAnnotationColorsToMatchTheme(Theme theme)
{
	IEclipsePreferences prefs = EclipseUtil.instanceScope().getNode("org.eclipse.ui.editors"); //$NON-NLS-1$
	if (!theme.hasEntry("override.searchResultIndication")) //$NON-NLS-1$
	{
		prefs.put("searchResultIndicationColor", toString(theme.getSearchResultColor())); //$NON-NLS-1$
	}
	// TODO Use markup.changed bg color for "decoration color" in Prefs>General>Appearance>Colors and Fonts

	// TODO Move this stuff over to theme change listeners in the XML/HTML/Ruby editor plugins?
	if (!theme.hasEntry("override.xmlTagPairOccurrenceIndication")) //$NON-NLS-1$
	{
		prefs.putBoolean("xmlTagPairOccurrenceIndicationHighlighting", false); //$NON-NLS-1$
		prefs.putBoolean("xmlTagPairOccurrenceIndication", true); //$NON-NLS-1$
		prefs.put("xmlTagPairOccurrenceIndicationColor", toString(theme.getOccurenceHighlightColor())); //$NON-NLS-1$
		prefs.put("xmlTagPairOccurrenceIndicationTextStyle", AnnotationPreference.STYLE_BOX); //$NON-NLS-1$
	}
	if (!theme.hasEntry("override.htmlTagPairOccurrenceIndication")) //$NON-NLS-1$
	{
		prefs.putBoolean("htmlTagPairOccurrenceIndicationHighlighting", false); //$NON-NLS-1$
		prefs.putBoolean("htmlTagPairOccurrenceIndication", true); //$NON-NLS-1$
		prefs.put("htmlTagPairOccurrenceIndicationColor", toString(theme.getOccurenceHighlightColor())); //$NON-NLS-1$
		prefs.put("htmlTagPairOccurrenceIndicationTextStyle", AnnotationPreference.STYLE_BOX); //$NON-NLS-1$
	}
	if (!theme.hasEntry("override.rubyBlockPairOccurrenceIndication")) //$NON-NLS-1$
	{
		prefs.putBoolean("rubyBlockPairOccurrenceIndicationHighlighting", false); //$NON-NLS-1$
		prefs.putBoolean("rubyBlockPairOccurrenceIndication", true); //$NON-NLS-1$
		prefs.put("rubyBlockPairOccurrenceIndicationColor", toString(theme.getOccurenceHighlightColor())); //$NON-NLS-1$
		prefs.put("rubyBlockPairOccurrenceIndicationTextStyle", AnnotationPreference.STYLE_BOX); //$NON-NLS-1$
	}
	// PyDev Occurrences (com.python.pydev.occurrences)
	// Override them if pydev is set to use our themes
	if (Platform.getPreferencesService().getBoolean("org.python.pydev.red_core", "PYDEV_USE_APTANA_THEMES", true, //$NON-NLS-1$ //$NON-NLS-2$
			null))
	{
		if (!theme.hasEntry("override.pydevOccurrenceIndication")) //$NON-NLS-1$
		{
			MarkerAnnotationPreferences preferences = new MarkerAnnotationPreferences();
			AnnotationPreference pydevOccurPref = null;
			for (Object obj : preferences.getAnnotationPreferences())
			{
				AnnotationPreference pref = (AnnotationPreference) obj;
				Object type = pref.getAnnotationType();
				if ("com.python.pydev.occurrences".equals(type)) //$NON-NLS-1$
				{
					pydevOccurPref = pref;
				}
			}
			if (pydevOccurPref != null)
			{
				if (pydevOccurPref.getTextStylePreferenceKey() != null)
				{
					// Now that pydev supports text style, use the box style and don't highlight.
					prefs.putBoolean("pydevOccurrenceHighlighting", false); //$NON-NLS-1$
					prefs.putBoolean("pydevOccurrenceIndication", true); //$NON-NLS-1$
					prefs.put("pydevOccurrenceIndicationColor", toString(theme.getOccurenceHighlightColor())); //$NON-NLS-1$
					prefs.put("pydevOccurrenceIndicationTextStyle", AnnotationPreference.STYLE_BOX); //$NON-NLS-1$
				}
				else
				{
					// Must use highlighting, since we're against older pydev that had no text style
					prefs.putBoolean("pydevOccurrenceHighlighting", true); //$NON-NLS-1$
					prefs.putBoolean("pydevOccurrenceIndication", true); //$NON-NLS-1$
					prefs.put("pydevOccurrenceIndicationColor", toString(theme.getSearchResultColor())); //$NON-NLS-1$
				}
			}
		}
	}

	try
	{
		prefs.flush();
	}
	catch (BackingStoreException e)
	{
		IdeLog.logError(ThemePlugin.getDefault(), e);
	}
}