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 */ 16 package com.android.browser.view; 17 18 import android.content.Context; 19 import android.util.AttributeSet; 20 import android.widget.GridView; 21 22 public 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
