| /******************************************************************************* |
| * Copyright (c) 2000, 2005 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.jdt.internal.ui.preferences; |
| |
| import java.util.StringTokenizer; |
| |
| import org.eclipse.jface.preference.IPreferenceStore; |
| import org.eclipse.jface.util.IPropertyChangeListener; |
| import org.eclipse.jface.util.PropertyChangeEvent; |
| |
| import org.eclipse.jdt.core.Flags; |
| |
| import org.eclipse.jdt.ui.PreferenceConstants; |
| |
| /** |
| */ |
| public class MembersOrderPreferenceCache implements IPropertyChangeListener { |
| |
| public static final int TYPE_INDEX= 0; |
| public static final int CONSTRUCTORS_INDEX= 1; |
| public static final int METHOD_INDEX= 2; |
| public static final int FIELDS_INDEX= 3; |
| public static final int INIT_INDEX= 4; |
| public static final int STATIC_FIELDS_INDEX= 5; |
| public static final int STATIC_INIT_INDEX= 6; |
| public static final int STATIC_METHODS_INDEX= 7; |
| public static final int ENUM_CONSTANTS_INDEX= 8; |
| public static final int N_CATEGORIES= ENUM_CONSTANTS_INDEX + 1; |
| |
| private static final int PUBLIC_INDEX= 0; |
| private static final int PRIVATE_INDEX= 1; |
| private static final int PROTECTED_INDEX= 2; |
| private static final int DEFAULT_INDEX= 3; |
| private static final int N_VISIBILITIES= DEFAULT_INDEX + 1; |
| |
| private int[] fCategoryOffsets= null; |
| |
| private boolean fSortByVisibility; |
| private int[] fVisibilityOffsets= null; |
| |
| public MembersOrderPreferenceCache() { |
| fCategoryOffsets= null; |
| fSortByVisibility= PreferenceConstants.getPreferenceStore().getBoolean(PreferenceConstants.APPEARANCE_ENABLE_VISIBILITY_SORT_ORDER); |
| fVisibilityOffsets= null; |
| } |
| |
| public static boolean isMemberOrderProperty(String property) { |
| return PreferenceConstants.APPEARANCE_MEMBER_SORT_ORDER.equals(property) |
| || PreferenceConstants.APPEARANCE_VISIBILITY_SORT_ORDER.equals(property) |
| || PreferenceConstants.APPEARANCE_ENABLE_VISIBILITY_SORT_ORDER.equals(property); |
| } |
| |
| public void propertyChange(PropertyChangeEvent event) { |
| String property= event.getProperty(); |
| |
| if (PreferenceConstants.APPEARANCE_MEMBER_SORT_ORDER.equals(property)) { |
| fCategoryOffsets= null; |
| } else if (PreferenceConstants.APPEARANCE_VISIBILITY_SORT_ORDER.equals(property)) { |
| fVisibilityOffsets= null; |
| } else if (PreferenceConstants.APPEARANCE_ENABLE_VISIBILITY_SORT_ORDER.equals(property)) { |
| fSortByVisibility= PreferenceConstants.getPreferenceStore().getBoolean(PreferenceConstants.APPEARANCE_ENABLE_VISIBILITY_SORT_ORDER); |
| } |
| } |
| |
| public int getCategoryIndex(int kind) { |
| if (fCategoryOffsets == null) { |
| fCategoryOffsets= getCategoryOffsets(); |
| } |
| return fCategoryOffsets[kind]; |
| } |
| |
| private int[] getCategoryOffsets() { |
| int[] offsets= new int[N_CATEGORIES]; |
| IPreferenceStore store= PreferenceConstants.getPreferenceStore(); |
| String key= PreferenceConstants.APPEARANCE_MEMBER_SORT_ORDER; |
| boolean success= fillCategoryOffsetsFromPreferenceString(store.getString(key), offsets); |
| if (!success) { |
| store.setToDefault(key); |
| fillCategoryOffsetsFromPreferenceString(store.getDefaultString(key), offsets); |
| } |
| return offsets; |
| } |
| |
| private boolean fillCategoryOffsetsFromPreferenceString(String str, int[] offsets) { |
| StringTokenizer tokenizer= new StringTokenizer(str, ","); //$NON-NLS-1$ |
| int i= 0; |
| offsets[ENUM_CONSTANTS_INDEX]= i++; // enum constants always on top |
| |
| while (tokenizer.hasMoreTokens()) { |
| String token= tokenizer.nextToken().trim(); |
| if ("T".equals(token)) { //$NON-NLS-1$ |
| offsets[TYPE_INDEX]= i++; |
| } else if ("M".equals(token)) { //$NON-NLS-1$ |
| offsets[METHOD_INDEX]= i++; |
| } else if ("F".equals(token)) { //$NON-NLS-1$ |
| offsets[FIELDS_INDEX]= i++; |
| } else if ("I".equals(token)) { //$NON-NLS-1$ |
| offsets[INIT_INDEX]= i++; |
| } else if ("SF".equals(token)) { //$NON-NLS-1$ |
| offsets[STATIC_FIELDS_INDEX]= i++; |
| } else if ("SI".equals(token)) { //$NON-NLS-1$ |
| offsets[STATIC_INIT_INDEX]= i++; |
| } else if ("SM".equals(token)) { //$NON-NLS-1$ |
| offsets[STATIC_METHODS_INDEX]= i++; |
| } else if ("C".equals(token)) { //$NON-NLS-1$ |
| offsets[CONSTRUCTORS_INDEX]= i++; |
| } |
| } |
| return i == N_CATEGORIES; |
| } |
| |
| public boolean isSortByVisibility() { |
| return fSortByVisibility; |
| } |
| |
| |
| public int getVisibilityIndex(int modifierFlags) { |
| if (fVisibilityOffsets == null) { |
| fVisibilityOffsets= getVisibilityOffsets(); |
| } |
| int kind= DEFAULT_INDEX; |
| if (Flags.isPublic(modifierFlags)) { |
| kind= PUBLIC_INDEX; |
| } else if (Flags.isProtected(modifierFlags)) { |
| kind= PROTECTED_INDEX; |
| } else if (Flags.isPrivate(modifierFlags)) { |
| kind= PRIVATE_INDEX; |
| } |
| |
| return fVisibilityOffsets[kind]; |
| } |
| |
| private int[] getVisibilityOffsets() { |
| int[] offsets= new int[N_VISIBILITIES]; |
| IPreferenceStore store= PreferenceConstants.getPreferenceStore(); |
| String key= PreferenceConstants.APPEARANCE_VISIBILITY_SORT_ORDER; |
| boolean success= fillVisibilityOffsetsFromPreferenceString(store.getString(key), offsets); |
| if (!success) { |
| store.setToDefault(key); |
| fillVisibilityOffsetsFromPreferenceString(store.getDefaultString(key), offsets); |
| } |
| return offsets; |
| } |
| |
| private boolean fillVisibilityOffsetsFromPreferenceString(String str, int[] offsets) { |
| StringTokenizer tokenizer= new StringTokenizer(str, ","); //$NON-NLS-1$ |
| int i= 0; |
| while (tokenizer.hasMoreTokens()) { |
| String token= tokenizer.nextToken().trim(); |
| if ("B".equals(token)) { //$NON-NLS-1$ |
| offsets[PUBLIC_INDEX]= i++; |
| } else if ("V".equals(token)) { //$NON-NLS-1$ |
| offsets[PRIVATE_INDEX]= i++; |
| } else if ("R".equals(token)) { //$NON-NLS-1$ |
| offsets[PROTECTED_INDEX]= i++; |
| } else if ("D".equals(token)) { //$NON-NLS-1$ |
| offsets[DEFAULT_INDEX]= i++; |
| } |
| } |
| return i == N_VISIBILITIES; |
| } |
| |
| |
| } |