/*******************************************************************************
* Copyright (c) 2009 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
* Zend Technologies
*******************************************************************************/
package org.eclipse.php.internal.ui.util;
import org.eclipse.dltk.ui.ScriptElementImageProvider;
import org.eclipse.dltk.ui.ScriptElementLabels;
import org.eclipse.dltk.ui.viewsupport.ScriptUILabelProvider;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.util.IPropertyChangeListener;
import org.eclipse.jface.util.PropertyChangeEvent;
import org.eclipse.jface.viewers.LabelProviderChangedEvent;
import org.eclipse.php.internal.ui.preferences.PreferenceConstants;
;
/**
* PHPUILabelProvider that respects settings from the Appearance preference
* page. Triggers a viewer update when a preference changes.
*/
public class AppearanceAwareLabelProvider extends ScriptUILabelProvider
implements IPropertyChangeListener {
public final static long DEFAULT_TEXTFLAGS = ScriptElementLabels.ROOT_VARIABLE
| ScriptElementLabels.M_PARAMETER_TYPES
| ScriptElementLabels.M_PARAMETER_NAMES
| ScriptElementLabels.M_APP_RETURNTYPE
| ScriptElementLabels.REFERENCED_ROOT_POST_QUALIFIED;
public final static int DEFAULT_IMAGEFLAGS = ScriptElementImageProvider.OVERLAY_ICONS;
private int fTextFlagMask;
private int fImageFlagMask;
/**
* Constructor for AppearanceAwareLabelProvider.
*/
public AppearanceAwareLabelProvider(long textFlags, int imageFlags) {
super(textFlags, imageFlags);
initMasks();
PreferenceConstants.getPreferenceStore()
.addPropertyChangeListener(this);
}
/**
* Creates a labelProvider with DEFAULT_TEXTFLAGS and DEFAULT_IMAGEFLAGS
*/
public AppearanceAwareLabelProvider() {
this(DEFAULT_TEXTFLAGS, DEFAULT_IMAGEFLAGS);
}
private void initMasks() {
IPreferenceStore store = PreferenceConstants.getPreferenceStore();
fTextFlagMask = -1;
if (!store.getBoolean(PreferenceConstants.APPEARANCE_METHOD_RETURNTYPE)) {
fTextFlagMask ^= ScriptElementLabels.M_APP_RETURNTYPE;
}
fImageFlagMask = -1;
}
/*
* @see IPropertyChangeListener#propertyChange(PropertyChangeEvent)
*/
public void propertyChange(PropertyChangeEvent event) {
String property = event.getProperty();
if (property.equals(PreferenceConstants.APPEARANCE_METHOD_RETURNTYPE)) {
initMasks();
LabelProviderChangedEvent lpEvent = new LabelProviderChangedEvent(
this, null); // refresh all
fireLabelProviderChanged(lpEvent);
}
}
/*
* @see IBaseLabelProvider#dispose()
*/
public void dispose() {
PreferenceConstants.getPreferenceStore().removePropertyChangeListener(
this);
super.dispose();
}
/*
* @see PHPUILabelProvider#evaluateImageFlags()
*/
protected int evaluateImageFlags(Object element) {
return getImageFlags() & fImageFlagMask;
}
/*
* @see PHPUILabelProvider#evaluateTextFlags()
*/
protected long evaluateTextFlags(Object element) {
return getTextFlags() & fTextFlagMask;
}
}