/*******************************************************************************
* Copyright (c) 2000, 2006 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
*******************************************************************************/
package org.eclipse.ui.internal.dialogs;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerComparator;
import org.eclipse.ui.internal.registry.Category;
import org.eclipse.ui.internal.registry.ViewRegistry;
import org.eclipse.ui.internal.registry.ViewRegistryReader;
import org.eclipse.ui.views.IViewCategory;
import org.eclipse.ui.views.IViewDescriptor;
/**
* This is used to sort views in a ShowViewDialog.
*/
public class ViewComparator extends ViewerComparator {
private ViewRegistry viewReg;
/**
* ViewSorter constructor comment.
*
* @param reg an IViewRegistry
*/
public ViewComparator(ViewRegistry reg) {
super();
viewReg = reg;
}
/**
* Returns a negative, zero, or positive number depending on whether
* the first element is less than, equal to, or greater than
* the second element.
*/
public int compare(Viewer viewer, Object e1, Object e2) {
if (e1 instanceof IViewDescriptor) {
String str1 = DialogUtil.removeAccel(((IViewDescriptor) e1)
.getLabel());
String str2 = DialogUtil.removeAccel(((IViewDescriptor) e2)
.getLabel());
return getComparator().compare(str1, str2);
} else if (e1 instanceof IViewCategory) {
IViewCategory generalCategory = viewReg.findCategory(ViewRegistryReader.GENERAL_VIEW_ID);
if (generalCategory != null){
if (((IViewCategory)e1).getId().equals(generalCategory.getId())) {
return -1;
}
if (((IViewCategory)e2).getId().equals(generalCategory.getId())) {
return 1;
}
}
Category miscCategory = viewReg.getMiscCategory();
if(miscCategory != null){
if (((IViewCategory)e1).getId().equals(miscCategory.getId())) {
return 1;
}
if (((IViewCategory)e2).getId().equals(miscCategory.getId())) {
return -1;
}
}
String str1 = DialogUtil.removeAccel(((IViewCategory) e1).getLabel());
String str2 = DialogUtil.removeAccel(((IViewCategory) e2).getLabel());
return getComparator().compare(str1, str2);
}
return 0;
}
}