// RAP [rh] Keys completely disabled as not implemented in RWT
///*******************************************************************************
// * Copyright (c) 2000, 2008 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.keys;
//
//import java.util.Comparator;
//
//import org.eclipse.jface.util.Util;
//import org.eclipse.ui.keys.ModifierKey;
//
///**
// * A comparator that sorts the modifier keys based on the native environment.
// * Currently, this is only the windowing toolkit, but in the future it might
// * expand to include the window manager.
// *
// * @since 3.0
// */
//class NativeModifierKeyComparator implements Comparator {
//
// /**
// * The sort order value to use when the modifier key is not recognized.
// */
// private final static int UNKNOWN_KEY = Integer.MAX_VALUE;
//
// /*
// * (non-Javadoc)
// *
// * @see java.lang.Comparable#compareTo(java.lang.Object)
// */
// public int compare(Object left, Object right) {
// ModifierKey modifierKeyLeft = (ModifierKey) left;
// ModifierKey modifierKeyRight = (ModifierKey) right;
// int modifierKeyLeftRank = rank(modifierKeyLeft);
// int modifierKeyRightRank = rank(modifierKeyRight);
//
// if (modifierKeyLeftRank != modifierKeyRightRank) {
// return modifierKeyLeftRank - modifierKeyRightRank;
// } else {
// return modifierKeyLeft.compareTo(modifierKeyRight);
// }
// }
//
// /**
// * Calculates a rank for a given modifier key.
// *
// * @param modifierKey
// * The modifier key to rank; may be <code>null</code>.
// * @return The rank of this modifier key. This is a non-negative number
// * where a lower number suggests a higher rank.
// */
// private int rank(ModifierKey modifierKey) {
//
// if (Util.isWindows()) {
// return rankWindows(modifierKey);
// }
//
// if (Util.isGtk()) {
// // TODO Do a look-up on window manager.
// return rankGNOME(modifierKey);
// }
//
// if (Util.isMac()) {
// return rankMacOSX(modifierKey);
// }
//
// if (Util.isMotif()) {
// // TODO Do a look-up on window manager.
// return rankGNOME(modifierKey);
// }
//
// return UNKNOWN_KEY;
// }
//
// /**
// * Provides a ranking for the modifier key based on the modifier key
// * ordering used in the GNOME window manager.
// *
// * @param modifierKey
// * The modifier key to rank; may be <code>null</code>.
// * @return The rank of this modifier key. This is a non-negative number
// * where a lower number suggests a higher rank.
// */
// private final int rankGNOME(ModifierKey modifierKey) {
// if (ModifierKey.SHIFT.equals(modifierKey)) {
// return 0;
// }
//
// if (ModifierKey.CTRL.equals(modifierKey)) {
// return 1;
// }
//
// if (ModifierKey.ALT.equals(modifierKey)) {
// return 2;
// }
//
// return UNKNOWN_KEY;
//
// }
//
// /**
// * Provides a ranking for the modifier key based on the modifier key
// * ordering used in the KDE window manager.
// *
// * @param modifierKey
// * The modifier key to rank; may be <code>null</code>.
// * @return The rank of this modifier key. This is a non-negative number
// * where a lower number suggests a higher rank.
// */
//// private final int rankKDE(ModifierKey modifierKey) {
//// if (ModifierKey.ALT.equals(modifierKey)) {
//// return 0;
//// }
////
//// if (ModifierKey.CTRL.equals(modifierKey)) {
//// return 1;
//// }
////
//// if (ModifierKey.SHIFT.equals(modifierKey)) {
//// return 2;
//// }
////
//// return UNKNOWN_KEY;
//// }
//
// /**
// * Provides a ranking for the modifier key based on the modifier key
// * ordering used in the MacOS X operating system.
// *
// * @param modifierKey
// * The modifier key to rank; may be <code>null</code>.
// * @return The rank of this modifier key. This is a non-negative number
// * where a lower number suggests a higher rank.
// */
// private final int rankMacOSX(ModifierKey modifierKey) {
// if (ModifierKey.SHIFT.equals(modifierKey)) {
// return 0;
// }
//
// if (ModifierKey.CTRL.equals(modifierKey)) {
// return 1;
// }
//
// if (ModifierKey.ALT.equals(modifierKey)) {
// return 2;
// }
//
// if (ModifierKey.COMMAND.equals(modifierKey)) {
// return 3;
// }
//
// return UNKNOWN_KEY;
// }
//
// /**
// * Provides a ranking for the modifier key based on the modifier key
// * ordering used in the Windows operating system.
// *
// * @param modifierKey
// * The modifier key to rank; may be <code>null</code>.
// * @return The rank of this modifier key. This is a non-negative number
// * where a lower number suggests a higher rank.
// */
// private final int rankWindows(ModifierKey modifierKey) {
// if (ModifierKey.CTRL.equals(modifierKey)) {
// return 0;
// }
//
// if (ModifierKey.ALT.equals(modifierKey)) {
// return 1;
// }
//
// if (ModifierKey.SHIFT.equals(modifierKey)) {
// return 2;
// }
//
// return UNKNOWN_KEY;
// }
//}