The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2007 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; |
| 18 | |
| 19 | import android.app.Service; |
| 20 | import android.content.Context; |
| 21 | import android.content.Intent; |
| 22 | import android.graphics.Canvas; |
| 23 | import android.graphics.Paint; |
| 24 | import android.graphics.PixelFormat; |
| 25 | import android.os.Handler; |
| 26 | import android.os.IBinder; |
| 27 | import android.os.Message; |
| 28 | import android.view.Gravity; |
| 29 | import android.view.View; |
| 30 | import android.view.WindowManager; |
| 31 | import android.view.WindowManagerImpl; |
| 32 | |
| 33 | public class LoadAverageService extends Service { |
| 34 | private View mView; |
| 35 | |
| 36 | private static final class Stats extends ProcessStats { |
| 37 | String mLoadText; |
| 38 | int mLoadWidth; |
| 39 | |
| 40 | private final Paint mPaint; |
| 41 | |
| 42 | Stats(Paint paint) { |
| 43 | super(false); |
| 44 | mPaint = paint; |
| 45 | } |
| 46 | |
| 47 | @Override |
| 48 | public void onLoadChanged(float load1, float load5, float load15) { |
| 49 | mLoadText = load1 + " / " + load5 + " / " + load15; |
| 50 | mLoadWidth = (int)mPaint.measureText(mLoadText); |
| 51 | } |
| 52 | |
| 53 | @Override |
| 54 | public int onMeasureProcessName(String name) { |
| 55 | return (int)mPaint.measureText(name); |
| 56 | } |
| 57 | } |
| 58 | |
| 59 | private class LoadView extends View { |
| 60 | private Handler mHandler = new Handler() { |
| 61 | @Override |
| 62 | public void handleMessage(Message msg) { |
| 63 | if (msg.what == 1) { |
| 64 | mStats.update(); |
| 65 | updateDisplay(); |
| 66 | Message m = obtainMessage(1); |
| 67 | sendMessageDelayed(m, 2000); |
| 68 | } |
| 69 | } |
| 70 | }; |
| 71 | |
| 72 | private final Stats mStats; |
| 73 | |
| 74 | private Paint mLoadPaint; |
| 75 | private Paint mAddedPaint; |
| 76 | private Paint mRemovedPaint; |
| 77 | private Paint mShadowPaint; |
| 78 | private Paint mShadow2Paint; |
| 79 | private Paint mIrqPaint; |
| 80 | private Paint mSystemPaint; |
| 81 | private Paint mUserPaint; |
| 82 | private float mAscent; |
| 83 | private int mFH; |
| 84 | |
| 85 | private int mNeededWidth; |
| 86 | private int mNeededHeight; |
| 87 | |
| 88 | LoadView(Context c) { |
| 89 | super(c); |
| 90 | |
| 91 | setPadding(4, 4, 4, 4); |
| 92 | //setBackgroundResource(com.android.internal.R.drawable.load_average_background); |
| 93 | |
| 94 | mLoadPaint = new Paint(); |
| 95 | mLoadPaint.setAntiAlias(true); |
| 96 | mLoadPaint.setTextSize(10); |
| 97 | mLoadPaint.setARGB(255, 255, 255, 255); |
| 98 | |
| 99 | mAddedPaint = new Paint(); |
| 100 | mAddedPaint.setAntiAlias(true); |
| 101 | mAddedPaint.setTextSize(10); |
| 102 | mAddedPaint.setARGB(255, 128, 255, 128); |
| 103 | |
| 104 | mRemovedPaint = new Paint(); |
| 105 | mRemovedPaint.setAntiAlias(true); |
| 106 | mRemovedPaint.setStrikeThruText(true); |
| 107 | mRemovedPaint.setTextSize(10); |
| 108 | mRemovedPaint.setARGB(255, 255, 128, 128); |
| 109 | |
| 110 | mShadowPaint = new Paint(); |
| 111 | mShadowPaint.setAntiAlias(true); |
| 112 | mShadowPaint.setTextSize(10); |
| 113 | //mShadowPaint.setFakeBoldText(true); |
| 114 | mShadowPaint.setARGB(192, 0, 0, 0); |
| 115 | mLoadPaint.setShadowLayer(4, 0, 0, 0xff000000); |
| 116 | |
| 117 | mShadow2Paint = new Paint(); |
| 118 | mShadow2Paint.setAntiAlias(true); |
| 119 | mShadow2Paint.setTextSize(10); |
| 120 | //mShadow2Paint.setFakeBoldText(true); |
| 121 | mShadow2Paint.setARGB(192, 0, 0, 0); |
| 122 | mLoadPaint.setShadowLayer(2, 0, 0, 0xff000000); |
| 123 | |
| 124 | mIrqPaint = new Paint(); |
| 125 | mIrqPaint.setARGB(0x80, 0, 0, 0xff); |
| 126 | mIrqPaint.setShadowLayer(2, 0, 0, 0xff000000); |
| 127 | mSystemPaint = new Paint(); |
| 128 | mSystemPaint.setARGB(0x80, 0xff, 0, 0); |
| 129 | mSystemPaint.setShadowLayer(2, 0, 0, 0xff000000); |
| 130 | mUserPaint = new Paint(); |
| 131 | mUserPaint.setARGB(0x80, 0, 0xff, 0); |
| 132 | mSystemPaint.setShadowLayer(2, 0, 0, 0xff000000); |
| 133 | |
| 134 | mAscent = mLoadPaint.ascent(); |
| 135 | float descent = mLoadPaint.descent(); |
| 136 | mFH = (int)(descent - mAscent + .5f); |
| 137 | |
| 138 | mStats = new Stats(mLoadPaint); |
| 139 | mStats.init(); |
| 140 | updateDisplay(); |
| 141 | } |
| 142 | |
| 143 | @Override |
| 144 | protected void onAttachedToWindow() { |
| 145 | super.onAttachedToWindow(); |
| 146 | mHandler.sendEmptyMessage(1); |
| 147 | } |
| 148 | |
| 149 | @Override |
| 150 | protected void onDetachedFromWindow() { |
| 151 | super.onDetachedFromWindow(); |
| 152 | mHandler.removeMessages(1); |
| 153 | } |
| 154 | |
| 155 | @Override |
| 156 | protected void onMeasure(int widthMeasureSpect, int heightMeasureSpec) { |
| 157 | setMeasuredDimension(mNeededWidth, mNeededHeight); |
| 158 | } |
| 159 | |
| 160 | @Override |
| 161 | public void onDraw(Canvas canvas) { |
| 162 | super.onDraw(canvas); |
| 163 | final int W = getWidth(); |
| 164 | |
| 165 | final Stats stats = mStats; |
| 166 | final int userTime = stats.getLastUserTime(); |
| 167 | final int systemTime = stats.getLastSystemTime(); |
| 168 | final int iowaitTime = stats.getLastIoWaitTime(); |
| 169 | final int irqTime = stats.getLastIrqTime(); |
| 170 | final int softIrqTime = stats.getLastSoftIrqTime(); |
| 171 | final int idleTime = stats.getLastIdleTime(); |
| 172 | |
| 173 | final int totalTime = userTime+systemTime+iowaitTime+irqTime+softIrqTime+idleTime; |
| 174 | if (totalTime == 0) { |
| 175 | return; |
| 176 | } |
| 177 | int userW = (userTime*W)/totalTime; |
| 178 | int systemW = (systemTime*W)/totalTime; |
| 179 | int irqW = ((iowaitTime+irqTime+softIrqTime)*W)/totalTime; |
| 180 | |
| 181 | int x = W - mPaddingRight; |
| 182 | int top = mPaddingTop + 2; |
| 183 | int bottom = mPaddingTop + mFH - 2; |
| 184 | |
| 185 | if (irqW > 0) { |
| 186 | canvas.drawRect(x-irqW, top, x, bottom, mIrqPaint); |
| 187 | x -= irqW; |
| 188 | } |
| 189 | if (systemW > 0) { |
| 190 | canvas.drawRect(x-systemW, top, x, bottom, mSystemPaint); |
| 191 | x -= systemW; |
| 192 | } |
| 193 | if (userW > 0) { |
| 194 | canvas.drawRect(x-userW, top, x, bottom, mUserPaint); |
| 195 | x -= userW; |
| 196 | } |
| 197 | |
| 198 | int y = mPaddingTop - (int)mAscent; |
| 199 | canvas.drawText(stats.mLoadText, W-mPaddingRight-stats.mLoadWidth-1, |
| 200 | y-1, mShadowPaint); |
| 201 | canvas.drawText(stats.mLoadText, W-mPaddingRight-stats.mLoadWidth-1, |
| 202 | y+1, mShadowPaint); |
| 203 | canvas.drawText(stats.mLoadText, W-mPaddingRight-stats.mLoadWidth+1, |
| 204 | y-1, mShadow2Paint); |
| 205 | canvas.drawText(stats.mLoadText, W-mPaddingRight-stats.mLoadWidth+1, |
| 206 | y+1, mShadow2Paint); |
| 207 | canvas.drawText(stats.mLoadText, W-mPaddingRight-stats.mLoadWidth, |
| 208 | y, mLoadPaint); |
| 209 | |
| 210 | int N = stats.countWorkingStats(); |
| 211 | for (int i=0; i<N; i++) { |
| 212 | Stats.Stats st = stats.getWorkingStats(i); |
| 213 | y += mFH; |
| 214 | top += mFH; |
| 215 | bottom += mFH; |
| 216 | |
| 217 | userW = (st.rel_utime*W)/totalTime; |
| 218 | systemW = (st.rel_stime*W)/totalTime; |
| 219 | x = W - mPaddingRight; |
| 220 | if (systemW > 0) { |
| 221 | canvas.drawRect(x-systemW, top, x, bottom, mSystemPaint); |
| 222 | x -= systemW; |
| 223 | } |
| 224 | if (userW > 0) { |
| 225 | canvas.drawRect(x-userW, top, x, bottom, mUserPaint); |
| 226 | x -= userW; |
| 227 | } |
| 228 | |
| 229 | canvas.drawText(st.name, W-mPaddingRight-st.nameWidth-1, |
| 230 | y-1, mShadowPaint); |
| 231 | canvas.drawText(st.name, W-mPaddingRight-st.nameWidth-1, |
| 232 | y+1, mShadowPaint); |
| 233 | canvas.drawText(st.name, W-mPaddingRight-st.nameWidth+1, |
| 234 | y-1, mShadow2Paint); |
| 235 | canvas.drawText(st.name, W-mPaddingRight-st.nameWidth+1, |
| 236 | y+1, mShadow2Paint); |
| 237 | Paint p = mLoadPaint; |
| 238 | if (st.added) p = mAddedPaint; |
| 239 | if (st.removed) p = mRemovedPaint; |
| 240 | canvas.drawText(st.name, W-mPaddingRight-st.nameWidth, y, p); |
| 241 | } |
| 242 | } |
| 243 | |
| 244 | void updateDisplay() { |
| 245 | final Stats stats = mStats; |
| 246 | final int NW = stats.countWorkingStats(); |
| 247 | |
| 248 | int maxWidth = stats.mLoadWidth; |
| 249 | for (int i=0; i<NW; i++) { |
| 250 | Stats.Stats st = stats.getWorkingStats(i); |
| 251 | if (st.nameWidth > maxWidth) { |
| 252 | maxWidth = st.nameWidth; |
| 253 | } |
| 254 | } |
| 255 | |
| 256 | int neededWidth = mPaddingLeft + mPaddingRight + maxWidth; |
| 257 | int neededHeight = mPaddingTop + mPaddingBottom + (mFH*(1+NW)); |
| 258 | if (neededWidth != mNeededWidth || neededHeight != mNeededHeight) { |
| 259 | mNeededWidth = neededWidth; |
| 260 | mNeededHeight = neededHeight; |
| 261 | requestLayout(); |
| 262 | } else { |
| 263 | invalidate(); |
| 264 | } |
| 265 | } |
| 266 | } |
| 267 | |
| 268 | @Override |
| 269 | public void onCreate() { |
| 270 | super.onCreate(); |
| 271 | mView = new LoadView(this); |
| 272 | WindowManager.LayoutParams params = new WindowManager.LayoutParams( |
| 273 | WindowManager.LayoutParams.WRAP_CONTENT, |
| 274 | WindowManager.LayoutParams.WRAP_CONTENT, |
| 275 | WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY, |
| 276 | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE| |
| 277 | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE, |
| 278 | PixelFormat.TRANSLUCENT); |
| 279 | params.gravity = Gravity.RIGHT | Gravity.TOP; |
| 280 | params.setTitle("Load Average"); |
| 281 | WindowManagerImpl wm = (WindowManagerImpl)getSystemService(WINDOW_SERVICE); |
| 282 | wm.addView(mView, params); |
| 283 | } |
| 284 | |
| 285 | @Override |
| 286 | public void onDestroy() { |
| 287 | super.onDestroy(); |
| 288 | ((WindowManagerImpl)getSystemService(WINDOW_SERVICE)).removeView(mView); |
| 289 | mView = null; |
| 290 | } |
| 291 | |
| 292 | @Override |
| 293 | public IBinder onBind(Intent intent) { |
| 294 | return null; |
| 295 | } |
| 296 | |
| 297 | } |