--- /dev/null
+/*******************************************************************************
+ * Copyright (c) 2000, 2004 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package net.sourceforge.phpdt.internal.ui.preferences;
+
+import java.util.StringTokenizer;
+
+import net.sourceforge.phpdt.core.Flags;
+import net.sourceforge.phpdt.ui.PreferenceConstants;
+
+import org.eclipse.jface.preference.IPreferenceStore;
+import org.eclipse.jface.util.IPropertyChangeListener;
+import org.eclipse.jface.util.PropertyChangeEvent;
+
+/**
+ */
+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 N_CATEGORIES = STATIC_METHODS_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;
+ 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;
+ }
+
+}