Show history of battery level.
Also clean up to remove dead code for running services and old battery usage UI. Finally some string improvements from Roy. Change-Id: I8765a4c744b92edd1505f14c47fea57b918e5d7b
This commit is contained in:
Dianne Hackborn
275
src/com/android/settings/fuelgauge/BatteryHistoryChart.java
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275
src/com/android/settings/fuelgauge/BatteryHistoryChart.java
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/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.fuelgauge;
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import com.android.settings.R;
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import android.content.Context;
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import android.content.res.ColorStateList;
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import android.content.res.TypedArray;
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import android.graphics.Canvas;
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import android.graphics.Paint;
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import android.graphics.Typeface;
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import android.os.BatteryStats;
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import android.os.SystemClock;
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import android.os.BatteryStats.BatteryHistoryRecord;
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import android.text.TextPaint;
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import android.util.AttributeSet;
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import android.view.View;
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public class BatteryHistoryChart extends View {
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private static final int SANS = 1;
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private static final int SERIF = 2;
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private static final int MONOSPACE = 3;
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final Paint mBatteryPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
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final TextPaint mTextPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG);
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int mFontSize;
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BatteryStats mStats;
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long mStatsPeriod;
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String mDurationString;
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int mTextAscent;
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int mTextDescent;
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int mDurationStringWidth;
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int mNumHist;
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long mHistStart;
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long mHistEnd;
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int mBatLow;
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int mBatHigh;
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public BatteryHistoryChart(Context context, AttributeSet attrs) {
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super(context, attrs);
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mBatteryPaint.setARGB(255, 255, 128, 128);
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mTextPaint.density = getResources().getDisplayMetrics().density;
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mTextPaint.setCompatibilityScaling(
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getResources().getCompatibilityInfo().applicationScale);
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TypedArray a =
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context.obtainStyledAttributes(
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attrs, R.styleable.BatteryHistoryChart, 0, 0);
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ColorStateList textColor = null;
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int textSize = 15;
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int typefaceIndex = -1;
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int styleIndex = -1;
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TypedArray appearance = null;
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int ap = a.getResourceId(R.styleable.BatteryHistoryChart_android_textAppearance, -1);
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if (ap != -1) {
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appearance = context.obtainStyledAttributes(ap,
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com.android.internal.R.styleable.
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TextAppearance);
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}
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if (appearance != null) {
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int n = appearance.getIndexCount();
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for (int i = 0; i < n; i++) {
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int attr = appearance.getIndex(i);
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switch (attr) {
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case com.android.internal.R.styleable.TextAppearance_textColor:
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textColor = appearance.getColorStateList(attr);
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break;
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case com.android.internal.R.styleable.TextAppearance_textSize:
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textSize = appearance.getDimensionPixelSize(attr, textSize);
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break;
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case com.android.internal.R.styleable.TextAppearance_typeface:
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typefaceIndex = appearance.getInt(attr, -1);
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break;
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case com.android.internal.R.styleable.TextAppearance_textStyle:
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styleIndex = appearance.getInt(attr, -1);
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break;
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}
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}
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appearance.recycle();
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}
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int shadowcolor = 0;
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float dx=0, dy=0, r=0;
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int n = a.getIndexCount();
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for (int i = 0; i < n; i++) {
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int attr = a.getIndex(i);
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switch (attr) {
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case R.styleable.BatteryHistoryChart_android_shadowColor:
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shadowcolor = a.getInt(attr, 0);
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break;
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case R.styleable.BatteryHistoryChart_android_shadowDx:
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dx = a.getFloat(attr, 0);
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break;
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case R.styleable.BatteryHistoryChart_android_shadowDy:
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dy = a.getFloat(attr, 0);
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break;
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case R.styleable.BatteryHistoryChart_android_shadowRadius:
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r = a.getFloat(attr, 0);
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break;
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case R.styleable.BatteryHistoryChart_android_textColor:
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textColor = a.getColorStateList(attr);
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break;
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case R.styleable.BatteryHistoryChart_android_textSize:
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textSize = a.getDimensionPixelSize(attr, textSize);
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break;
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case R.styleable.BatteryHistoryChart_android_typeface:
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typefaceIndex = a.getInt(attr, typefaceIndex);
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break;
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case R.styleable.BatteryHistoryChart_android_textStyle:
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styleIndex = a.getInt(attr, styleIndex);
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break;
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}
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}
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mTextPaint.setColor(textColor.getDefaultColor());
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mTextPaint.setTextSize(textSize);
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Typeface tf = null;
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switch (typefaceIndex) {
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case SANS:
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tf = Typeface.SANS_SERIF;
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break;
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case SERIF:
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tf = Typeface.SERIF;
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break;
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case MONOSPACE:
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tf = Typeface.MONOSPACE;
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break;
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}
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setTypeface(tf, styleIndex);
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if (shadowcolor != 0) {
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mTextPaint.setShadowLayer(r, dx, dy, shadowcolor);
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}
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}
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public void setTypeface(Typeface tf, int style) {
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if (style > 0) {
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if (tf == null) {
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tf = Typeface.defaultFromStyle(style);
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} else {
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tf = Typeface.create(tf, style);
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}
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mTextPaint.setTypeface(tf);
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// now compute what (if any) algorithmic styling is needed
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int typefaceStyle = tf != null ? tf.getStyle() : 0;
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int need = style & ~typefaceStyle;
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mTextPaint.setFakeBoldText((need & Typeface.BOLD) != 0);
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mTextPaint.setTextSkewX((need & Typeface.ITALIC) != 0 ? -0.25f : 0);
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} else {
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mTextPaint.setFakeBoldText(false);
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mTextPaint.setTextSkewX(0);
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mTextPaint.setTypeface(tf);
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}
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}
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void setStats(BatteryStats stats) {
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mStats = stats;
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long uSecTime = mStats.computeBatteryRealtime(SystemClock.elapsedRealtime() * 1000,
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BatteryStats.STATS_UNPLUGGED);
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mStatsPeriod = uSecTime;
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String durationString = Utils.formatElapsedTime(getContext(), mStatsPeriod / 1000);
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mDurationString = getContext().getString(R.string.battery_stats_on_battery,
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durationString);
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BatteryStats.BatteryHistoryRecord rec = stats.getHistory();
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if (rec != null) {
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mHistStart = rec.time;
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mBatLow = mBatHigh = rec.batteryLevel;
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}
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int pos = 0;
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int lastUnplugged = 0;
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mBatLow = 0;
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mBatHigh = 100;
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while (rec != null) {
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pos++;
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if ((rec.states&BatteryHistoryRecord.STATE_BATTERY_PLUGGED_FLAG) == 0) {
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lastUnplugged = pos;
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mHistEnd = rec.time;
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}
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rec = rec.next;
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}
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mNumHist = lastUnplugged;
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if (mHistEnd <= mHistStart) mHistEnd = mHistStart+1;
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}
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@Override
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protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
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super.onMeasure(widthMeasureSpec, heightMeasureSpec);
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mDurationStringWidth = (int)mTextPaint.measureText(mDurationString);
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mTextAscent = (int)mTextPaint.ascent();
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mTextDescent = (int)mTextPaint.descent();
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}
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@Override
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protected void onSizeChanged(int w, int h, int oldw, int oldh) {
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super.onSizeChanged(w, h, oldw, oldh);
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}
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@Override
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protected void onDraw(Canvas canvas) {
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super.onDraw(canvas);
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final int width = getWidth();
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final int height = getHeight();
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final long timeStart = mHistStart;
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final long timeChange = mHistEnd-mHistStart;
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final int batLow = mBatLow;
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final int batChange = mBatHigh-mBatLow;
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BatteryStats.BatteryHistoryRecord rec = mStats.getHistory();
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int lastX=-1, lastY=-1;
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int pos = 0;
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final int N = mNumHist;
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while (rec != null && pos < N) {
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int x = (int)(((rec.time-timeStart)*width)/timeChange);
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int y = height-1 - ((rec.batteryLevel-batLow)*height)/batChange;
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if (lastX >= 0) {
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canvas.drawLine(lastX, lastY, x, y, mBatteryPaint);
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}
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lastX = x;
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lastY = y;
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rec = rec.next;
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pos++;
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}
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canvas.drawText(mDurationString, (width/2) - (mDurationStringWidth/2),
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(height/2) - ((mTextDescent-mTextAscent)/2) - mTextAscent, mTextPaint);
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}
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}
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