Fixed: [ Issue 61 ] The Directory box under "Add directory path" looks editable https://code.google.com/p/protobuf-dt/issues/detail?id=61

diff --git a/com.google.eclipse.protobuf.ui/src/com/google/eclipse/protobuf/ui/preferences/paths/AddDirectoryDialog.java b/com.google.eclipse.protobuf.ui/src/com/google/eclipse/protobuf/ui/preferences/paths/AddDirectoryDialog.java
index 2d6d412..e06a8be 100644
--- a/com.google.eclipse.protobuf.ui/src/com/google/eclipse/protobuf/ui/preferences/paths/AddDirectoryDialog.java
+++ b/com.google.eclipse.protobuf.ui/src/com/google/eclipse/protobuf/ui/preferences/paths/AddDirectoryDialog.java

@@ -8,18 +8,19 @@
  */
 package com.google.eclipse.protobuf.ui.preferences.paths;
 
-import static com.google.eclipse.protobuf.ui.preferences.paths.Messages.*;
 import static com.google.eclipse.protobuf.ui.preferences.paths.DirectorySelectionDialogs.*;
+import static com.google.eclipse.protobuf.ui.preferences.paths.Messages.*;
 import static org.eclipse.jface.dialogs.IDialogConstants.OK_ID;
 import static org.eclipse.xtext.util.Strings.isEmpty;
 
+import com.google.eclipse.protobuf.ui.preferences.InputDialog;
+
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.*;
+import org.eclipse.swt.graphics.Color;
 import org.eclipse.swt.layout.*;
 import org.eclipse.swt.widgets.*;
 
-import com.google.eclipse.protobuf.ui.preferences.InputDialog;
-
 /**
  * Dialog where users can select a path (in the workspace or file system) to be included in resolution of imports.
  *
@@ -54,6 +55,7 @@
     label.setText(includeDirectoryPrompt);
 
     txtPath = new Text(cmpDialogArea, SWT.BORDER);
+    txtPath.setBackground(getColor(SWT.COLOR_WIDGET_BACKGROUND));
     txtPath.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 2, 1));
     txtPath.setEditable(false);
 
@@ -131,6 +133,10 @@
     return txtPath.getText().trim();
   }
 
+  private static Color getColor(int systemColorID) {
+    return Display.getCurrent().getSystemColor(systemColorID);
+  }
+  
   /**
    * Returns the path selected by the user.
    * @return the path selected by the user.