Moved two previously hidden preferences to CCorePreferenceConstants.java and made them public.

core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/pdom/PDOMManager.java

@@ -150,14 +150,6 @@ public class PDOMManager implements IWritableIndexManager, IListener {
 		ILinkage.CPP_LINKAGE_ID, ILinkage.C_LINKAGE_ID, ILinkage.FORTRAN_LINKAGE_ID
 	};
 
-	/**
-	 * Boolean preference controlling whether paths to non-workspace files are stored in canonical
-	 * form or not. 
-	 */
-	// TODO(sprigogin): Move to CPreferencesConstants and add UI support.
-	public static final String PREFERENCES_CONSTANT_PATH_CANONICALIZATION =
-		CCorePlugin.PLUGIN_ID + ".path_canonicalization"; //$NON-NLS-1$
-
 	/**
 	 * Protects fIndexerJob, fCurrentTask and fTaskQueue.
 	 */
@@ -283,7 +275,7 @@ public class PDOMManager implements IWritableIndexManager, IListener {
 				prop.equals(CCorePreferenceConstants.TODO_TASK_PRIORITIES) ||
 				prop.equals(CCorePreferenceConstants.TODO_TASK_CASE_SENSITIVE)) {
 			reindexAll();
-		} else if (prop.equals(PREFERENCES_CONSTANT_PATH_CANONICALIZATION)) {
+		} else if (prop.equals(CCorePreferenceConstants.FILE_PATH_CANONICALIZATION)) {
 			updatePathCanonicalizationStrategy();
 			reindexAll();
 		}
@@ -302,7 +294,7 @@ public class PDOMManager implements IWritableIndexManager, IListener {
 
 	private void updatePathCanonicalizationStrategy() {
 		IPreferencesService prefs = Platform.getPreferencesService();
-		boolean canonicalize = prefs.getBoolean(CCorePlugin.PLUGIN_ID, PREFERENCES_CONSTANT_PATH_CANONICALIZATION, true, null);
+		boolean canonicalize = prefs.getBoolean(CCorePlugin.PLUGIN_ID, CCorePreferenceConstants.FILE_PATH_CANONICALIZATION, true, null);
 		PathCanonicalizationStrategy.setPathCanonicalization(canonicalize);
 	}
 

core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/CCorePreferenceConstants.java

@@ -121,6 +121,13 @@ public class CCorePreferenceConstants {
 	 */
 	public static final String DEFAULT_MAX_INDEX_DB_CACHE_SIZE_MB = "64"; //$NON-NLS-1$
 
+	/**
+	 * Boolean preference controlling whether paths of non-workspace files are stored in index in canonical
+	 * form or not. Canonicalization is performed by calling {@link java.io.File#getCanonicalPath()}.
+	 * @since 5.2
+	 */
+	public static final String FILE_PATH_CANONICALIZATION = CCorePlugin.PLUGIN_ID + ".path_canonicalization"; //$NON-NLS-1$
+
 	/**
 	 * Workspace-wide language mappings. 
 	 */

core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/formatter/DefaultCodeFormatterConstants.java

@@ -518,7 +518,18 @@ public class DefaultCodeFormatterConstants {
 	public static final String FORMATTER_INDENT_ACCESS_SPECIFIER_COMPARE_TO_TYPE_HEADER = CCorePlugin.PLUGIN_ID + ".formatter.indent_access_specifier_compare_to_type_header";  //$NON-NLS-1$
 	/**
 	 * <pre>
-	 * FORMATTER / Option to indent body declarations compare to access specifiers (visibility labels)
+	 * FORMATTER / Number of extra spaces in front of 'public:', 'protected:', 'private:' access specifiers.
+	 *             Enables fractional indent of access specifiers. Does not affect indentation of body declarations.
+	 *     - option id:         "org.eclipse.cdt.core.formatter.indent_access_specifier_extra_spaces"
+	 *     - possible values:   "&lt;n&gt;", where n is zero or a positive integer
+	 *     - default:           "0"
+	 * </pre>
+	 * @since 5.2
+	 */
+	public static final String FORMATTER_INDENT_ACCESS_SPECIFIER_EXTRA_SPACES = CCorePlugin.PLUGIN_ID + ".formatter.indent_access_specifier_extra_spaces"; //$NON-NLS-1$
+	/**
+	 * <pre>
+	 * FORMATTER / Option to indent body declarations relative to access specifiers (visibility labels)
 	 *     - option id:         "org.eclipse.cdt.core.formatter.indent_body_declarations_compare_to_access_specifier"
 	 *     - possible values:   { TRUE, FALSE }
 	 *     - default:           TRUE

core/org.eclipse.cdt.core/src/org/eclipse/cdt/internal/core/CCorePreferenceInitializer.java

@@ -7,7 +7,7 @@
  *
  * Contributors:
  *     QNX Software Systems - Initial API and implementation
- *     Sergey Prigogin, Google
+ *     Sergey Prigogin (Google)
  *     Markus Schorn (Wind River Systems)
  *******************************************************************************/
 package org.eclipse.cdt.internal.core;
@@ -59,6 +59,7 @@ public class CCorePreferenceInitializer extends AbstractPreferenceInitializer {
 
 		defaultPreferences.putBoolean(CCorePreferenceConstants.SHOW_SOURCE_FILES_IN_BINARIES, true);
 		defaultPreferences.putBoolean(CCorePlugin.PREF_USE_STRUCTURAL_PARSE_MODE, false);
+		defaultPreferences.putBoolean(CCorePreferenceConstants.FILE_PATH_CANONICALIZATION, true);
 		
 		// indexer defaults
 		IndexerPreferences.initializeDefaultPreferences(defaultPreferences);

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/CIndenter.java

@@ -12,9 +12,13 @@
  *******************************************************************************/
 package org.eclipse.cdt.internal.ui.text;
 
+import org.eclipse.core.resources.ProjectScope;
 import org.eclipse.core.runtime.Assert;
 import org.eclipse.core.runtime.Platform;
+import org.eclipse.core.runtime.preferences.DefaultScope;
 import org.eclipse.core.runtime.preferences.IPreferencesService;
+import org.eclipse.core.runtime.preferences.IScopeContext;
+import org.eclipse.core.runtime.preferences.InstanceScope;
 import org.eclipse.jface.text.BadLocationException;
 import org.eclipse.jface.text.IDocument;
 import org.eclipse.jface.text.IRegion;
@@ -75,6 +79,8 @@ public final class CIndenter {
 		final boolean prefHasTemplates;
 		final String prefTabChar;
 		
+		private final IPreferencesService preferenceService;
+		private final IScopeContext[] preferenceContexts;
 		private final ICProject fProject;
 
 		/**
@@ -84,12 +90,22 @@ public final class CIndenter {
 		 * @return the value of the preference
 		 */
 		private String getCoreFormatterOption(String key) {
-			if (fProject == null)
+			return getCoreFormatterOption(key, null);
-				return CCorePlugin.getOption(key);
+		}
-			return fProject.getOption(key, true);
+
+		private String getCoreFormatterOption(String key, String defaultValue) {
+			return preferenceService.getString(CCorePlugin.PLUGIN_ID, key, defaultValue, preferenceContexts);
+		}
+
+		private int getCoreFormatterOption(String key, int defaultValue) {
+			return preferenceService.getInt(CCorePlugin.PLUGIN_ID, key, defaultValue, preferenceContexts);
 		}
 
 		CorePrefs(ICProject project) {
+			preferenceService = Platform.getPreferencesService();
+			preferenceContexts = project != null ?
+					new IScopeContext[] { new ProjectScope(project.getProject()), new InstanceScope(), new DefaultScope() } :
+					new IScopeContext[] { new InstanceScope(), new DefaultScope() };
 			fProject= project;
 			prefUseTabs= prefUseTabs();
 			prefTabSize= prefTabSize();
@@ -345,9 +361,7 @@ public final class CIndenter {
 		}
 
 		private int prefAccessSpecifierExtraSpaces() {
-			// Hidden option that enables fractional indent of access specifiers.
+			return getCoreFormatterOption(DefaultCodeFormatterConstants.FORMATTER_INDENT_ACCESS_SPECIFIER_EXTRA_SPACES, 0);
-			IPreferencesService prefs = Platform.getPreferencesService();
-			return prefs.getInt(CCorePlugin.PLUGIN_ID, CCorePlugin.PLUGIN_ID + ".formatter.indent_access_specifier_extra_spaces", 0, null); //$NON-NLS-1$
 		}
 
 		private int prefNamespaceBodyIndent() {