commit c2f813a36711742af3b23743ef1849cec13a9a95
author Michael Kolb <kolby@google.com> Wed May 15 18:55:19 2013 +0000
committer Android (Google) Code Review <android-gerrit@google.com> Wed May 15 18:55:19 2013 +0000
tree 8adc4c238d33fdb3af8610fa628d6d410d0b0e29
parent 655e208d5dc1305d9e4eb5301dec0673136151c9
parent dff7d0ec9cb635ef7381e518d32de5b7457dd655

Merge "Grey out undo/redo/reset according to state" into gb-ub-photos-bryce

src/com/android/gallery3d/filtershow/HistoryAdapter.java

diff --git a/src/com/android/gallery3d/filtershow/HistoryAdapter.java b/src/com/android/gallery3d/filtershow/HistoryAdapter.java
index 8d68246..1d47160 100644
--- a/src/com/android/gallery3d/filtershow/HistoryAdapter.java
+++ b/src/com/android/gallery3d/filtershow/HistoryAdapter.java
@@ -19,6 +19,7 @@
 import android.content.Context;
 import android.graphics.Bitmap;
 import android.graphics.Color;
+import android.graphics.drawable.Drawable;
 import android.view.LayoutInflater;
 import android.view.MenuItem;
 import android.view.View;
@@ -86,13 +87,21 @@
 
     public void updateMenuItems() {
         if (mUndoMenuItem != null) {
-            mUndoMenuItem.setEnabled(canUndo());
+            setEnabled(mUndoMenuItem, canUndo());
         }
         if (mRedoMenuItem != null) {
-            mRedoMenuItem.setEnabled(canRedo());
+            setEnabled(mRedoMenuItem, canRedo());
         }
         if (mResetMenuItem != null) {
-            mResetMenuItem.setEnabled(canReset());
+            setEnabled(mResetMenuItem, canReset());
+        }
+    }
+
+    private void setEnabled(MenuItem item, boolean enabled) {
+        item.setEnabled(enabled);
+        Drawable drawable = item.getIcon();
+        if (drawable != null) {
+            drawable.setAlpha(enabled ? 255 : 80);
         }
     }