Make the preference constant visible for other plugins.

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/cview/CView.java

@@ -30,6 +30,7 @@ import org.eclipse.cdt.internal.ui.util.EditorUtility;
 import org.eclipse.cdt.internal.ui.util.ProblemTreeViewer;
 import org.eclipse.cdt.ui.CElementContentProvider;
 import org.eclipse.cdt.ui.CUIPlugin;
+import org.eclipse.cdt.ui.PreferenceConstants;
 import org.eclipse.core.resources.IContainer;
 import org.eclipse.core.resources.IFile;
 import org.eclipse.core.resources.IFolder;
@@ -1107,7 +1108,7 @@ public class CView extends ViewPart implements IMenuListener, ISetSelectionTarge
 
 		boolean refreshViewer= false;
 
-		if (event.getProperty() == CPluginPreferencePage.PREF_SHOW_CU_CHILDREN) {
+		if (event.getProperty() == PreferenceConstants.PREF_SHOW_CU_CHILDREN) {
 			boolean showCUChildren= CPluginPreferencePage.showCompilationUnitChildren();
 			((CElementContentProvider)viewer.getContentProvider()).setProvideMembers(showCUChildren);
 			refreshViewer= true;

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/preferences/CPluginPreferencePage.java

@@ -8,6 +8,7 @@ package org.eclipse.cdt.internal.ui.preferences;
 import org.eclipse.cdt.core.CCorePlugin;
 import org.eclipse.cdt.internal.ui.ICHelpContextIds;
 import org.eclipse.cdt.ui.CUIPlugin;
+import org.eclipse.cdt.ui.PreferenceConstants;
 import org.eclipse.jface.preference.BooleanFieldEditor;
 import org.eclipse.jface.preference.FieldEditorPreferencePage;
 import org.eclipse.jface.preference.IPreferenceStore;
@@ -21,8 +22,6 @@ import org.eclipse.ui.help.WorkbenchHelp;
  */
 public class CPluginPreferencePage extends FieldEditorPreferencePage implements IWorkbenchPreferencePage {
 	
-	private static final String PREF_LINK_TO_EDITOR= "linkToEditor"; //$NON-NLS-1$
-	public static final String PREF_SHOW_CU_CHILDREN= "CUChildren"; //$NON-NLS-1$
 
 	private static final String LINK_TO_EDITOR_LABEL= "CBasePreferencePage.linkToEditor.label";
 	private static final String SHOW_CU_CHILDREN_LABEL= "CBasePreferencePage.CUChildren.label";
@@ -47,10 +46,10 @@ public class CPluginPreferencePage extends FieldEditorPreferencePage implements
 	protected void createFieldEditors() {
 		Composite parent= getFieldEditorParent();
 
-		BooleanFieldEditor linkEditor= new BooleanFieldEditor(PREF_LINK_TO_EDITOR, CUIPlugin.getResourceString(LINK_TO_EDITOR_LABEL), parent);
+		BooleanFieldEditor linkEditor= new BooleanFieldEditor(PreferenceConstants.PREF_LINK_TO_EDITOR, CUIPlugin.getResourceString(LINK_TO_EDITOR_LABEL), parent);
 		addField(linkEditor);
 
-		BooleanFieldEditor showCUChildrenEditor= new BooleanFieldEditor(PREF_SHOW_CU_CHILDREN, CUIPlugin.getResourceString(SHOW_CU_CHILDREN_LABEL), parent);
+		BooleanFieldEditor showCUChildrenEditor= new BooleanFieldEditor(PreferenceConstants.PREF_SHOW_CU_CHILDREN, CUIPlugin.getResourceString(SHOW_CU_CHILDREN_LABEL), parent);
 		addField(showCUChildrenEditor);
 
 		BooleanFieldEditor useNewParserEditor= new BooleanFieldEditor(CCorePlugin.PREF_USE_NEW_PARSER, CUIPlugin.getResourceString(USE_NEW_PARSER_LABEL), parent);
@@ -59,11 +58,11 @@ public class CPluginPreferencePage extends FieldEditorPreferencePage implements
 	
 
 	public static boolean isLinkToEditor() {
-		return CUIPlugin.getDefault().getPreferenceStore().getBoolean(PREF_LINK_TO_EDITOR);
+		return CUIPlugin.getDefault().getPreferenceStore().getBoolean(PreferenceConstants.PREF_LINK_TO_EDITOR);
 	}
 
 	public static boolean showCompilationUnitChildren() {
-		return CUIPlugin.getDefault().getPreferenceStore().getBoolean(PREF_SHOW_CU_CHILDREN);
+		return CUIPlugin.getDefault().getPreferenceStore().getBoolean(PreferenceConstants.PREF_SHOW_CU_CHILDREN);
 	}
 	
 	public static boolean useNewParser() {
@@ -81,9 +80,10 @@ public class CPluginPreferencePage extends FieldEditorPreferencePage implements
 	 * Initializes the default values of this page in the preference bundle.
 	 */
 	public static void initDefaults(IPreferenceStore prefs) {
-		prefs.setDefault(PREF_LINK_TO_EDITOR, true);
+		prefs.setDefault(PreferenceConstants.PREF_LINK_TO_EDITOR, true);
-		prefs.setDefault(PREF_SHOW_CU_CHILDREN, true);
+		prefs.setDefault(PreferenceConstants.PREF_SHOW_CU_CHILDREN, true);
 		prefs.setDefault(CCorePlugin.PREF_USE_NEW_PARSER, CCorePlugin.getDefault().useNewParser());
+		prefs.setDefault(PreferenceConstants.EDITOR_SHOW_SEGMENTS, false);
 	}
 	
 	/* (non-Javadoc)

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/ui/PreferenceConstants.java

@@ -0,0 +1,44 @@
+/*
+ * (c) Copyright IBM Corp. 2000, 2001.
+ * All Rights Reserved.
+ */
+package org.eclipse.cdt.ui;
+
+/**
+ * Preference constants used in the JDT-UI preference store. Clients should only read the
+ * JDT-UI preference store using these values. Clients are not allowed to modify the 
+ * preference store programmatically.
+ * 
+ * @since 2.0
+  */
+
+public class PreferenceConstants {
+	
+	private PreferenceConstants() {
+	}
+	
+	/**
+	 * A named preference that controls whether the cview's selection is linked to the active editor.
+	 * <p>
+	 * Value is of type <code>Boolean</code>.
+	 * </p>
+	 */
+	public static final String PREF_LINK_TO_EDITOR= "org.eclipse.cdt.ui.editor.linkToEditor"; //$NON-NLS-1$
+
+	/**
+	 * A named preference that speficies whether children of a translation unit are shown in the package explorer.
+	 * <p>
+	 * Value is of type <code>Boolean</code>.
+	 * </p>
+	 */
+	public static final String PREF_SHOW_CU_CHILDREN= "org.eclipse.cdt.ui.editor.CUChildren"; //$NON-NLS-1$
+	
+	/**
+	 * A named preference that controls if segmented view (show selected element only) is turned on or off.
+	 * <p>
+	 * Value is of type <code>Boolean</code>.
+	 * </p>
+	 */
+	public static final String EDITOR_SHOW_SEGMENTS= "org.eclipse.cdt.ui.editor.showSegments"; //$NON-NLS-1$
+
+}