1/*
2 * Copyright (C) 2012 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.camera.ui;
18
19import android.content.Context;
20import android.util.AttributeSet;
21import android.widget.Checkable;
22import android.widget.LinearLayout;
23
24public class CheckedLinearLayout extends LinearLayout implements Checkable {
25    private static final int[] CHECKED_STATE_SET = {
26        android.R.attr.state_checked
27    };
28    private boolean mChecked;
29
30    public CheckedLinearLayout(Context context, AttributeSet attrs) {
31        super(context, attrs);
32    }
33
34    @Override
35    public boolean isChecked() {
36        return mChecked;
37    }
38
39    @Override
40    public void setChecked(boolean checked) {
41        if (mChecked != checked) {
42            mChecked = checked;
43            refreshDrawableState();
44        }
45    }
46
47    @Override
48    public void toggle() {
49        setChecked(!mChecked);
50    }
51
52    @Override
53    public int[] onCreateDrawableState(int extraSpace) {
54        final int[] drawableState = super.onCreateDrawableState(extraSpace + 1);
55        if (mChecked) {
56            mergeDrawableStates(drawableState, CHECKED_STATE_SET);
57        }
58        return drawableState;
59    }
60}
61