1/*
2 * Copyright (C) 2011 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 */
16package com.android.browser.view;
17
18import android.content.Context;
19import android.util.AttributeSet;
20import android.widget.GridView;
21
22public class SnapshotGridView extends GridView {
23
24    private static final int MAX_COLUMNS = 5;
25
26    private int mColWidth;
27
28    public SnapshotGridView(Context context) {
29        super(context);
30    }
31
32    public SnapshotGridView(Context context, AttributeSet attrs) {
33        super(context, attrs);
34    }
35
36    public SnapshotGridView(Context context, AttributeSet attrs, int defStyle) {
37        super(context, attrs, defStyle);
38    }
39
40    @Override
41    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
42        int widthSize = MeasureSpec.getSize(widthMeasureSpec);
43        int widthMode = MeasureSpec.getMode(widthMeasureSpec);
44        if (widthSize > 0 && mColWidth > 0) {
45            int numCols = widthSize / mColWidth;
46            widthSize = Math.min(
47                    Math.min(numCols, MAX_COLUMNS) * mColWidth,
48                    widthSize);
49            widthMeasureSpec = MeasureSpec.makeMeasureSpec(widthSize, widthMode);
50        }
51        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
52    }
53
54    @Override
55    public void setColumnWidth(int columnWidth) {
56        mColWidth = columnWidth;
57        super.setColumnWidth(columnWidth);
58    }
59}
60