1 /* 2 * Copyright (C) 2008 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 17 package com.android.server.status; 18 19 import android.content.Context; 20 import android.content.res.TypedArray; 21 import android.util.AttributeSet; 22 import android.util.Log; 23 import android.view.View; 24 import android.graphics.BitmapFactory; 25 import android.graphics.Bitmap; 26 import android.graphics.Paint; 27 import android.graphics.Canvas; 28 29 public class TrackingPatternView extends View { 30 private Bitmap mTexture; 31 private Paint mPaint; 32 private int mTextureWidth; 33 private int mTextureHeight; 34 TrackingPatternView(Context context, AttributeSet attrs)35 public TrackingPatternView(Context context, AttributeSet attrs) { 36 super(context, attrs); 37 38 mTexture = BitmapFactory.decodeResource(getResources(), 39 com.android.internal.R.drawable.status_bar_background); 40 mTextureWidth = mTexture.getWidth(); 41 mTextureHeight = mTexture.getHeight(); 42 43 mPaint = new Paint(); 44 mPaint.setDither(false); 45 } 46 47 @Override onDraw(Canvas canvas)48 public void onDraw(Canvas canvas) { 49 final Bitmap texture = mTexture; 50 final Paint paint = mPaint; 51 52 final int width = getWidth(); 53 final int height = getHeight(); 54 55 final int textureWidth = mTextureWidth; 56 final int textureHeight = mTextureHeight; 57 58 int x = 0; 59 int y; 60 61 while (x < width) { 62 y = 0; 63 while (y < height) { 64 canvas.drawBitmap(texture, x, y, paint); 65 y += textureHeight; 66 } 67 x += textureWidth; 68 } 69 } 70 } 71