1 files changed, 51 insertions, 0 deletions
diff --git a/src/com/android/gallery3d/filtershow/CenteredLinearLayout.java b/src/com/android/gallery3d/filtershow/CenteredLinearLayout.java
new file mode 100644
index 000000000..bc9342d6f
--- /dev/null
+++ b/src/com/android/gallery3d/filtershow/CenteredLinearLayout.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.gallery3d.filtershow;
+
+import android.content.Context;
+import android.content.res.Resources;
+import android.content.res.TypedArray;
+import android.util.AttributeSet;
+import android.util.TypedValue;
+import android.widget.LinearLayout;
+
+import com.android.gallery3d.R;
+
+public class CenteredLinearLayout extends LinearLayout {
+    private final int mMaxWidth;
+
+    public CenteredLinearLayout(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        TypedArray a = getContext().obtainStyledAttributes(attrs, R.styleable.CenteredLinearLayout);
+        mMaxWidth = a.getDimensionPixelSize(R.styleable.CenteredLinearLayout_max_width, 0);
+    }
+
+    @Override
+    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+        int parentWidth = MeasureSpec.getSize(widthMeasureSpec);
+        int parentHeight = MeasureSpec.getSize(heightMeasureSpec);
+        Resources r = getContext().getResources();
+        float value = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, parentWidth,
+                r.getDisplayMetrics());
+        if (mMaxWidth > 0 && parentWidth > mMaxWidth) {
+            int measureMode = MeasureSpec.getMode(widthMeasureSpec);
+            widthMeasureSpec = MeasureSpec.makeMeasureSpec(mMaxWidth, measureMode);
+        }
+        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
+    }
+
+}