jackqdyulei | 597b10f | 2017-01-27 13:31:40 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 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.settingslib.graph; |
| 18 | |
| 19 | import android.animation.ArgbEvaluator; |
| 20 | import android.annotation.Nullable; |
| 21 | import android.content.Context; |
| 22 | import android.content.res.Resources; |
| 23 | import android.content.res.TypedArray; |
| 24 | import android.graphics.Canvas; |
| 25 | import android.graphics.Color; |
| 26 | import android.graphics.ColorFilter; |
| 27 | import android.graphics.Paint; |
| 28 | import android.graphics.Path; |
| 29 | import android.graphics.RectF; |
| 30 | import android.graphics.Typeface; |
| 31 | import android.graphics.drawable.Drawable; |
Jason Monk | 58be7a6 | 2017-02-01 20:17:51 -0500 | [diff] [blame] | 32 | import android.util.TypedValue; |
| 33 | |
jackqdyulei | 597b10f | 2017-01-27 13:31:40 -0800 | [diff] [blame] | 34 | import com.android.settingslib.R; |
| 35 | import com.android.settingslib.Utils; |
| 36 | |
| 37 | public class BatteryMeterDrawableBase extends Drawable { |
| 38 | |
| 39 | private static final float ASPECT_RATIO = 9.5f / 14.5f; |
| 40 | public static final String TAG = BatteryMeterDrawableBase.class.getSimpleName(); |
jackqdyulei | 597b10f | 2017-01-27 13:31:40 -0800 | [diff] [blame] | 41 | |
| 42 | protected final Context mContext; |
jackqdyulei | ff5bd94 | 2017-04-04 10:54:21 -0700 | [diff] [blame] | 43 | protected final Paint mFramePaint; |
| 44 | protected final Paint mBatteryPaint; |
| 45 | protected final Paint mWarningTextPaint; |
| 46 | protected final Paint mTextPaint; |
| 47 | protected final Paint mBoltPaint; |
| 48 | protected final Paint mPlusPaint; |
jackqdyulei | 597b10f | 2017-01-27 13:31:40 -0800 | [diff] [blame] | 49 | |
Dan Sandler | 6aa6e6e | 2017-02-07 19:12:25 -0800 | [diff] [blame] | 50 | private int mLevel = -1; |
jackqdyulei | ff5bd94 | 2017-04-04 10:54:21 -0700 | [diff] [blame] | 51 | private boolean mCharging; |
Dan Sandler | 6aa6e6e | 2017-02-07 19:12:25 -0800 | [diff] [blame] | 52 | private boolean mPowerSaveEnabled; |
| 53 | private boolean mShowPercent; |
jackqdyulei | 597b10f | 2017-01-27 13:31:40 -0800 | [diff] [blame] | 54 | |
| 55 | private static final boolean SINGLE_DIGIT_PERCENT = false; |
| 56 | |
| 57 | private static final int FULL = 96; |
| 58 | |
| 59 | private static final float BOLT_LEVEL_THRESHOLD = 0.3f; // opaque bolt below this fraction |
| 60 | |
| 61 | private final int[] mColors; |
| 62 | private final int mIntrinsicWidth; |
| 63 | private final int mIntrinsicHeight; |
| 64 | |
| 65 | private float mButtonHeightFraction; |
| 66 | private float mSubpixelSmoothingLeft; |
| 67 | private float mSubpixelSmoothingRight; |
jackqdyulei | 597b10f | 2017-01-27 13:31:40 -0800 | [diff] [blame] | 68 | private float mTextHeight, mWarningTextHeight; |
| 69 | private int mIconTint = Color.WHITE; |
Jason Monk | d866b8a | 2017-03-29 15:30:44 -0400 | [diff] [blame] | 70 | private float mOldDarkIntensity = -1f; |
jackqdyulei | 597b10f | 2017-01-27 13:31:40 -0800 | [diff] [blame] | 71 | |
| 72 | private int mHeight; |
| 73 | private int mWidth; |
| 74 | private String mWarningString; |
| 75 | private final int mCriticalLevel; |
| 76 | private int mChargeColor; |
| 77 | private final float[] mBoltPoints; |
| 78 | private final Path mBoltPath = new Path(); |
| 79 | private final float[] mPlusPoints; |
| 80 | private final Path mPlusPath = new Path(); |
| 81 | |
| 82 | private final RectF mFrame = new RectF(); |
| 83 | private final RectF mButtonFrame = new RectF(); |
| 84 | private final RectF mBoltFrame = new RectF(); |
| 85 | private final RectF mPlusFrame = new RectF(); |
| 86 | |
| 87 | private final Path mShapePath = new Path(); |
| 88 | private final Path mClipPath = new Path(); |
| 89 | private final Path mTextPath = new Path(); |
| 90 | |
jackqdyulei | 597b10f | 2017-01-27 13:31:40 -0800 | [diff] [blame] | 91 | public BatteryMeterDrawableBase(Context context, int frameColor) { |
| 92 | mContext = context; |
| 93 | final Resources res = context.getResources(); |
| 94 | TypedArray levels = res.obtainTypedArray(R.array.batterymeter_color_levels); |
| 95 | TypedArray colors = res.obtainTypedArray(R.array.batterymeter_color_values); |
| 96 | |
| 97 | final int N = levels.length(); |
| 98 | mColors = new int[2 * N]; |
Jason Monk | 58be7a6 | 2017-02-01 20:17:51 -0500 | [diff] [blame] | 99 | for (int i=0; i < N; i++) { |
jackqdyulei | 597b10f | 2017-01-27 13:31:40 -0800 | [diff] [blame] | 100 | mColors[2 * i] = levels.getInt(i, 0); |
Jason Monk | 58be7a6 | 2017-02-01 20:17:51 -0500 | [diff] [blame] | 101 | if (colors.getType(i) == TypedValue.TYPE_ATTRIBUTE) { |
Jason Monk | 7c8564e | 2017-03-29 15:21:36 -0400 | [diff] [blame] | 102 | mColors[2 * i + 1] = Utils.getColorAttr(context, colors.getThemeAttributeId(i, 0)); |
Jason Monk | 58be7a6 | 2017-02-01 20:17:51 -0500 | [diff] [blame] | 103 | } else { |
| 104 | mColors[2 * i + 1] = colors.getColor(i, 0); |
| 105 | } |
jackqdyulei | 597b10f | 2017-01-27 13:31:40 -0800 | [diff] [blame] | 106 | } |
| 107 | levels.recycle(); |
| 108 | colors.recycle(); |
Dan Sandler | 6aa6e6e | 2017-02-07 19:12:25 -0800 | [diff] [blame] | 109 | |
jackqdyulei | 597b10f | 2017-01-27 13:31:40 -0800 | [diff] [blame] | 110 | mWarningString = context.getString(R.string.battery_meter_very_low_overlay_symbol); |
| 111 | mCriticalLevel = mContext.getResources().getInteger( |
| 112 | com.android.internal.R.integer.config_criticalBatteryWarningLevel); |
| 113 | mButtonHeightFraction = context.getResources().getFraction( |
| 114 | R.fraction.battery_button_height_fraction, 1, 1); |
| 115 | mSubpixelSmoothingLeft = context.getResources().getFraction( |
| 116 | R.fraction.battery_subpixel_smoothing_left, 1, 1); |
| 117 | mSubpixelSmoothingRight = context.getResources().getFraction( |
| 118 | R.fraction.battery_subpixel_smoothing_right, 1, 1); |
| 119 | |
| 120 | mFramePaint = new Paint(Paint.ANTI_ALIAS_FLAG); |
| 121 | mFramePaint.setColor(frameColor); |
| 122 | mFramePaint.setDither(true); |
| 123 | mFramePaint.setStrokeWidth(0); |
| 124 | mFramePaint.setStyle(Paint.Style.FILL_AND_STROKE); |
| 125 | |
| 126 | mBatteryPaint = new Paint(Paint.ANTI_ALIAS_FLAG); |
| 127 | mBatteryPaint.setDither(true); |
| 128 | mBatteryPaint.setStrokeWidth(0); |
| 129 | mBatteryPaint.setStyle(Paint.Style.FILL_AND_STROKE); |
| 130 | |
| 131 | mTextPaint = new Paint(Paint.ANTI_ALIAS_FLAG); |
| 132 | Typeface font = Typeface.create("sans-serif-condensed", Typeface.BOLD); |
| 133 | mTextPaint.setTypeface(font); |
| 134 | mTextPaint.setTextAlign(Paint.Align.CENTER); |
| 135 | |
| 136 | mWarningTextPaint = new Paint(Paint.ANTI_ALIAS_FLAG); |
| 137 | font = Typeface.create("sans-serif", Typeface.BOLD); |
| 138 | mWarningTextPaint.setTypeface(font); |
| 139 | mWarningTextPaint.setTextAlign(Paint.Align.CENTER); |
| 140 | if (mColors.length > 1) { |
| 141 | mWarningTextPaint.setColor(mColors[1]); |
| 142 | } |
| 143 | |
| 144 | mChargeColor = Utils.getDefaultColor(mContext, R.color.batterymeter_charge_color); |
| 145 | |
| 146 | mBoltPaint = new Paint(Paint.ANTI_ALIAS_FLAG); |
| 147 | mBoltPaint.setColor(Utils.getDefaultColor(mContext, R.color.batterymeter_bolt_color)); |
Dan Sandler | 6aa6e6e | 2017-02-07 19:12:25 -0800 | [diff] [blame] | 148 | mBoltPoints = loadPoints(res, R.array.batterymeter_bolt_points); |
jackqdyulei | 597b10f | 2017-01-27 13:31:40 -0800 | [diff] [blame] | 149 | |
| 150 | mPlusPaint = new Paint(mBoltPaint); |
Dan Sandler | 6aa6e6e | 2017-02-07 19:12:25 -0800 | [diff] [blame] | 151 | mPlusPoints = loadPoints(res, R.array.batterymeter_plus_points); |
jackqdyulei | 597b10f | 2017-01-27 13:31:40 -0800 | [diff] [blame] | 152 | |
jackqdyulei | 597b10f | 2017-01-27 13:31:40 -0800 | [diff] [blame] | 153 | mIntrinsicWidth = context.getResources().getDimensionPixelSize(R.dimen.battery_width); |
| 154 | mIntrinsicHeight = context.getResources().getDimensionPixelSize(R.dimen.battery_height); |
| 155 | } |
| 156 | |
| 157 | @Override |
| 158 | public int getIntrinsicHeight() { |
| 159 | return mIntrinsicHeight; |
| 160 | } |
| 161 | |
| 162 | @Override |
| 163 | public int getIntrinsicWidth() { |
| 164 | return mIntrinsicWidth; |
| 165 | } |
| 166 | |
Dan Sandler | 6aa6e6e | 2017-02-07 19:12:25 -0800 | [diff] [blame] | 167 | public void setShowPercent(boolean show) { |
| 168 | mShowPercent = show; |
jackqdyulei | 597b10f | 2017-01-27 13:31:40 -0800 | [diff] [blame] | 169 | postInvalidate(); |
| 170 | } |
| 171 | |
jackqdyulei | ff5bd94 | 2017-04-04 10:54:21 -0700 | [diff] [blame] | 172 | public void setCharging(boolean val) { |
| 173 | mCharging = val; |
Dan Sandler | 6aa6e6e | 2017-02-07 19:12:25 -0800 | [diff] [blame] | 174 | postInvalidate(); |
| 175 | } |
| 176 | |
jackqdyulei | ff5bd94 | 2017-04-04 10:54:21 -0700 | [diff] [blame] | 177 | public boolean getCharging() { |
| 178 | return mCharging; |
| 179 | } |
| 180 | |
Dan Sandler | 6aa6e6e | 2017-02-07 19:12:25 -0800 | [diff] [blame] | 181 | public void setBatteryLevel(int val) { |
| 182 | mLevel = val; |
| 183 | postInvalidate(); |
| 184 | } |
| 185 | |
jackqdyulei | ff5bd94 | 2017-04-04 10:54:21 -0700 | [diff] [blame] | 186 | public int getBatteryLevel() { |
| 187 | return mLevel; |
| 188 | } |
| 189 | |
Dan Sandler | 6aa6e6e | 2017-02-07 19:12:25 -0800 | [diff] [blame] | 190 | public void setPowerSave(boolean val) { |
| 191 | mPowerSaveEnabled = val; |
| 192 | postInvalidate(); |
| 193 | } |
| 194 | |
| 195 | // an approximation of View.postInvalidate() |
jackqdyulei | 597b10f | 2017-01-27 13:31:40 -0800 | [diff] [blame] | 196 | protected void postInvalidate() { |
Dan Sandler | 6aa6e6e | 2017-02-07 19:12:25 -0800 | [diff] [blame] | 197 | unscheduleSelf(this::invalidateSelf); |
jackqdyulei | 597b10f | 2017-01-27 13:31:40 -0800 | [diff] [blame] | 198 | scheduleSelf(this::invalidateSelf, 0); |
| 199 | } |
| 200 | |
Dan Sandler | 6aa6e6e | 2017-02-07 19:12:25 -0800 | [diff] [blame] | 201 | private static float[] loadPoints(Resources res, int pointArrayRes) { |
| 202 | final int[] pts = res.getIntArray(pointArrayRes); |
jackqdyulei | 597b10f | 2017-01-27 13:31:40 -0800 | [diff] [blame] | 203 | int maxX = 0, maxY = 0; |
| 204 | for (int i = 0; i < pts.length; i += 2) { |
| 205 | maxX = Math.max(maxX, pts[i]); |
| 206 | maxY = Math.max(maxY, pts[i + 1]); |
| 207 | } |
| 208 | final float[] ptsF = new float[pts.length]; |
| 209 | for (int i = 0; i < pts.length; i += 2) { |
| 210 | ptsF[i] = (float) pts[i] / maxX; |
| 211 | ptsF[i + 1] = (float) pts[i + 1] / maxY; |
| 212 | } |
| 213 | return ptsF; |
| 214 | } |
| 215 | |
| 216 | @Override |
| 217 | public void setBounds(int left, int top, int right, int bottom) { |
| 218 | super.setBounds(left, top, right, bottom); |
| 219 | mHeight = bottom - top; |
| 220 | mWidth = right - left; |
| 221 | mWarningTextPaint.setTextSize(mHeight * 0.75f); |
| 222 | mWarningTextHeight = -mWarningTextPaint.getFontMetrics().ascent; |
| 223 | } |
| 224 | |
jackqdyulei | 597b10f | 2017-01-27 13:31:40 -0800 | [diff] [blame] | 225 | private int getColorForLevel(int percent) { |
| 226 | // If we are in power save mode, always use the normal color. |
| 227 | if (mPowerSaveEnabled) { |
Jason Monk | bb76905 | 2017-05-10 10:39:16 -0400 | [diff] [blame] | 228 | return mIconTint; |
jackqdyulei | 597b10f | 2017-01-27 13:31:40 -0800 | [diff] [blame] | 229 | } |
| 230 | int thresh, color = 0; |
| 231 | for (int i = 0; i < mColors.length; i += 2) { |
| 232 | thresh = mColors[i]; |
| 233 | color = mColors[i + 1]; |
| 234 | if (percent <= thresh) { |
| 235 | |
| 236 | // Respect tinting for "normal" level |
| 237 | if (i == mColors.length - 2) { |
| 238 | return mIconTint; |
| 239 | } else { |
| 240 | return color; |
| 241 | } |
| 242 | } |
| 243 | } |
| 244 | return color; |
| 245 | } |
| 246 | |
jackqdyulei | 597b10f | 2017-01-27 13:31:40 -0800 | [diff] [blame] | 247 | public void setColors(int fillColor, int backgroundColor) { |
| 248 | mIconTint = fillColor; |
| 249 | mFramePaint.setColor(backgroundColor); |
| 250 | mBoltPaint.setColor(fillColor); |
| 251 | mChargeColor = fillColor; |
| 252 | invalidateSelf(); |
| 253 | } |
| 254 | |
jackqdyulei | 597b10f | 2017-01-27 13:31:40 -0800 | [diff] [blame] | 255 | @Override |
| 256 | public void draw(Canvas c) { |
| 257 | final int level = mLevel; |
| 258 | |
| 259 | if (level == -1) return; |
| 260 | |
| 261 | float drawFrac = (float) level / 100f; |
| 262 | final int height = mHeight; |
| 263 | final int width = (int) (ASPECT_RATIO * mHeight); |
| 264 | int px = (mWidth - width) / 2; |
| 265 | |
| 266 | final int buttonHeight = (int) (height * mButtonHeightFraction); |
| 267 | |
| 268 | mFrame.set(0, 0, width, height); |
| 269 | mFrame.offset(px, 0); |
| 270 | |
| 271 | // button-frame: area above the battery body |
| 272 | mButtonFrame.set( |
| 273 | mFrame.left + Math.round(width * 0.25f), |
| 274 | mFrame.top, |
| 275 | mFrame.right - Math.round(width * 0.25f), |
| 276 | mFrame.top + buttonHeight); |
| 277 | |
| 278 | mButtonFrame.top += mSubpixelSmoothingLeft; |
| 279 | mButtonFrame.left += mSubpixelSmoothingLeft; |
| 280 | mButtonFrame.right -= mSubpixelSmoothingRight; |
| 281 | |
| 282 | // frame: battery body area |
| 283 | mFrame.top += buttonHeight; |
| 284 | mFrame.left += mSubpixelSmoothingLeft; |
| 285 | mFrame.top += mSubpixelSmoothingLeft; |
| 286 | mFrame.right -= mSubpixelSmoothingRight; |
| 287 | mFrame.bottom -= mSubpixelSmoothingRight; |
| 288 | |
| 289 | // set the battery charging color |
jackqdyulei | ff5bd94 | 2017-04-04 10:54:21 -0700 | [diff] [blame] | 290 | mBatteryPaint.setColor(mCharging ? mChargeColor : getColorForLevel(level)); |
jackqdyulei | 597b10f | 2017-01-27 13:31:40 -0800 | [diff] [blame] | 291 | |
| 292 | if (level >= FULL) { |
| 293 | drawFrac = 1f; |
| 294 | } else if (level <= mCriticalLevel) { |
| 295 | drawFrac = 0f; |
| 296 | } |
| 297 | |
| 298 | final float levelTop = drawFrac == 1f ? mButtonFrame.top |
| 299 | : (mFrame.top + (mFrame.height() * (1f - drawFrac))); |
| 300 | |
| 301 | // define the battery shape |
| 302 | mShapePath.reset(); |
| 303 | mShapePath.moveTo(mButtonFrame.left, mButtonFrame.top); |
| 304 | mShapePath.lineTo(mButtonFrame.right, mButtonFrame.top); |
| 305 | mShapePath.lineTo(mButtonFrame.right, mFrame.top); |
| 306 | mShapePath.lineTo(mFrame.right, mFrame.top); |
| 307 | mShapePath.lineTo(mFrame.right, mFrame.bottom); |
| 308 | mShapePath.lineTo(mFrame.left, mFrame.bottom); |
| 309 | mShapePath.lineTo(mFrame.left, mFrame.top); |
| 310 | mShapePath.lineTo(mButtonFrame.left, mFrame.top); |
| 311 | mShapePath.lineTo(mButtonFrame.left, mButtonFrame.top); |
| 312 | |
jackqdyulei | ff5bd94 | 2017-04-04 10:54:21 -0700 | [diff] [blame] | 313 | if (mCharging) { |
jackqdyulei | 597b10f | 2017-01-27 13:31:40 -0800 | [diff] [blame] | 314 | // define the bolt shape |
| 315 | final float bl = mFrame.left + mFrame.width() / 4f; |
| 316 | final float bt = mFrame.top + mFrame.height() / 6f; |
| 317 | final float br = mFrame.right - mFrame.width() / 4f; |
| 318 | final float bb = mFrame.bottom - mFrame.height() / 10f; |
| 319 | if (mBoltFrame.left != bl || mBoltFrame.top != bt |
| 320 | || mBoltFrame.right != br || mBoltFrame.bottom != bb) { |
| 321 | mBoltFrame.set(bl, bt, br, bb); |
| 322 | mBoltPath.reset(); |
| 323 | mBoltPath.moveTo( |
| 324 | mBoltFrame.left + mBoltPoints[0] * mBoltFrame.width(), |
| 325 | mBoltFrame.top + mBoltPoints[1] * mBoltFrame.height()); |
| 326 | for (int i = 2; i < mBoltPoints.length; i += 2) { |
| 327 | mBoltPath.lineTo( |
| 328 | mBoltFrame.left + mBoltPoints[i] * mBoltFrame.width(), |
| 329 | mBoltFrame.top + mBoltPoints[i + 1] * mBoltFrame.height()); |
| 330 | } |
| 331 | mBoltPath.lineTo( |
| 332 | mBoltFrame.left + mBoltPoints[0] * mBoltFrame.width(), |
| 333 | mBoltFrame.top + mBoltPoints[1] * mBoltFrame.height()); |
| 334 | } |
| 335 | |
| 336 | float boltPct = (mBoltFrame.bottom - levelTop) / (mBoltFrame.bottom - mBoltFrame.top); |
| 337 | boltPct = Math.min(Math.max(boltPct, 0), 1); |
| 338 | if (boltPct <= BOLT_LEVEL_THRESHOLD) { |
| 339 | // draw the bolt if opaque |
| 340 | c.drawPath(mBoltPath, mBoltPaint); |
| 341 | } else { |
| 342 | // otherwise cut the bolt out of the overall shape |
| 343 | mShapePath.op(mBoltPath, Path.Op.DIFFERENCE); |
| 344 | } |
| 345 | } else if (mPowerSaveEnabled) { |
| 346 | // define the plus shape |
| 347 | final float pw = mFrame.width() * 2 / 3; |
| 348 | final float pl = mFrame.left + (mFrame.width() - pw) / 2; |
| 349 | final float pt = mFrame.top + (mFrame.height() - pw) / 2; |
| 350 | final float pr = mFrame.right - (mFrame.width() - pw) / 2; |
| 351 | final float pb = mFrame.bottom - (mFrame.height() - pw) / 2; |
| 352 | if (mPlusFrame.left != pl || mPlusFrame.top != pt |
| 353 | || mPlusFrame.right != pr || mPlusFrame.bottom != pb) { |
| 354 | mPlusFrame.set(pl, pt, pr, pb); |
| 355 | mPlusPath.reset(); |
| 356 | mPlusPath.moveTo( |
| 357 | mPlusFrame.left + mPlusPoints[0] * mPlusFrame.width(), |
| 358 | mPlusFrame.top + mPlusPoints[1] * mPlusFrame.height()); |
| 359 | for (int i = 2; i < mPlusPoints.length; i += 2) { |
| 360 | mPlusPath.lineTo( |
| 361 | mPlusFrame.left + mPlusPoints[i] * mPlusFrame.width(), |
| 362 | mPlusFrame.top + mPlusPoints[i + 1] * mPlusFrame.height()); |
| 363 | } |
| 364 | mPlusPath.lineTo( |
| 365 | mPlusFrame.left + mPlusPoints[0] * mPlusFrame.width(), |
| 366 | mPlusFrame.top + mPlusPoints[1] * mPlusFrame.height()); |
| 367 | } |
| 368 | |
| 369 | float boltPct = (mPlusFrame.bottom - levelTop) / (mPlusFrame.bottom - mPlusFrame.top); |
| 370 | boltPct = Math.min(Math.max(boltPct, 0), 1); |
| 371 | if (boltPct <= BOLT_LEVEL_THRESHOLD) { |
| 372 | // draw the bolt if opaque |
| 373 | c.drawPath(mPlusPath, mPlusPaint); |
| 374 | } else { |
| 375 | // otherwise cut the bolt out of the overall shape |
| 376 | mShapePath.op(mPlusPath, Path.Op.DIFFERENCE); |
| 377 | } |
| 378 | } |
| 379 | |
| 380 | // compute percentage text |
| 381 | boolean pctOpaque = false; |
| 382 | float pctX = 0, pctY = 0; |
| 383 | String pctText = null; |
jackqdyulei | ff5bd94 | 2017-04-04 10:54:21 -0700 | [diff] [blame] | 384 | if (!mCharging && !mPowerSaveEnabled && level > mCriticalLevel && mShowPercent) { |
jackqdyulei | 597b10f | 2017-01-27 13:31:40 -0800 | [diff] [blame] | 385 | mTextPaint.setColor(getColorForLevel(level)); |
| 386 | mTextPaint.setTextSize(height * |
| 387 | (SINGLE_DIGIT_PERCENT ? 0.75f |
| 388 | : (mLevel == 100 ? 0.38f : 0.5f))); |
| 389 | mTextHeight = -mTextPaint.getFontMetrics().ascent; |
| 390 | pctText = String.valueOf(SINGLE_DIGIT_PERCENT ? (level / 10) : level); |
| 391 | pctX = mWidth * 0.5f; |
| 392 | pctY = (mHeight + mTextHeight) * 0.47f; |
| 393 | pctOpaque = levelTop > pctY; |
| 394 | if (!pctOpaque) { |
| 395 | mTextPath.reset(); |
| 396 | mTextPaint.getTextPath(pctText, 0, pctText.length(), pctX, pctY, mTextPath); |
| 397 | // cut the percentage text out of the overall shape |
| 398 | mShapePath.op(mTextPath, Path.Op.DIFFERENCE); |
| 399 | } |
| 400 | } |
| 401 | |
| 402 | // draw the battery shape background |
| 403 | c.drawPath(mShapePath, mFramePaint); |
| 404 | |
| 405 | // draw the battery shape, clipped to charging level |
| 406 | mFrame.top = levelTop; |
| 407 | mClipPath.reset(); |
| 408 | mClipPath.addRect(mFrame, Path.Direction.CCW); |
| 409 | mShapePath.op(mClipPath, Path.Op.INTERSECT); |
| 410 | c.drawPath(mShapePath, mBatteryPaint); |
| 411 | |
jackqdyulei | ff5bd94 | 2017-04-04 10:54:21 -0700 | [diff] [blame] | 412 | if (!mCharging && !mPowerSaveEnabled) { |
jackqdyulei | 597b10f | 2017-01-27 13:31:40 -0800 | [diff] [blame] | 413 | if (level <= mCriticalLevel) { |
| 414 | // draw the warning text |
| 415 | final float x = mWidth * 0.5f; |
| 416 | final float y = (mHeight + mWarningTextHeight) * 0.48f; |
| 417 | c.drawText(mWarningString, x, y, mWarningTextPaint); |
| 418 | } else if (pctOpaque) { |
| 419 | // draw the percentage text |
| 420 | c.drawText(pctText, pctX, pctY, mTextPaint); |
| 421 | } |
| 422 | } |
| 423 | } |
| 424 | |
| 425 | // Some stuff required by Drawable. |
| 426 | @Override |
| 427 | public void setAlpha(int alpha) { |
| 428 | } |
| 429 | |
| 430 | @Override |
| 431 | public void setColorFilter(@Nullable ColorFilter colorFilter) { |
| 432 | mFramePaint.setColorFilter(colorFilter); |
| 433 | mBatteryPaint.setColorFilter(colorFilter); |
| 434 | mWarningTextPaint.setColorFilter(colorFilter); |
| 435 | mBoltPaint.setColorFilter(colorFilter); |
| 436 | mPlusPaint.setColorFilter(colorFilter); |
| 437 | } |
| 438 | |
| 439 | @Override |
| 440 | public int getOpacity() { |
| 441 | return 0; |
| 442 | } |
jackqdyulei | ff5bd94 | 2017-04-04 10:54:21 -0700 | [diff] [blame] | 443 | |
| 444 | public int getCriticalLevel() { |
| 445 | return mCriticalLevel; |
| 446 | } |
jackqdyulei | 597b10f | 2017-01-27 13:31:40 -0800 | [diff] [blame] | 447 | } |