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      1 /*
      2  * Copyright (C) 2017 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
      5  * except in compliance with the License. You may obtain a copy of the License at
      6  *
      7  *      http://www.apache.org/licenses/LICENSE-2.0
      8  *
      9  * Unless required by applicable law or agreed to in writing, software distributed under the
     10  * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
     11  * KIND, either express or implied. See the License for the specific language governing
     12  * permissions and limitations under the License.
     13  */
     14 
     15 package com.android.systemui;
     16 
     17 import android.content.Context;
     18 import android.graphics.Canvas;
     19 import android.graphics.ColorFilter;
     20 import android.graphics.Paint;
     21 import android.graphics.PixelFormat;
     22 import android.graphics.Rect;
     23 import android.graphics.drawable.Drawable;
     24 import android.graphics.drawable.LayerDrawable;
     25 
     26 import com.android.settingslib.Utils;
     27 
     28 public class HardwareBgDrawable extends LayerDrawable {
     29 
     30     private final Paint mPaint = new Paint();
     31     private final Drawable[] mLayers;
     32     private final boolean mRoundTop;
     33     private int mPoint;
     34     private boolean mRotatedBackground;
     35 
     36     public HardwareBgDrawable(boolean roundTop, boolean roundEnd, Context context) {
     37         this(roundTop, getLayers(context, roundTop, roundEnd));
     38     }
     39 
     40     public HardwareBgDrawable(boolean roundTop, Drawable[] layers) {
     41         super(layers);
     42         if (layers.length != 2) {
     43             throw new IllegalArgumentException("Need 2 layers");
     44         }
     45         mRoundTop = roundTop;
     46         mLayers = layers;
     47     }
     48 
     49     private static Drawable[] getLayers(Context context, boolean roundTop, boolean roundEnd) {
     50         int drawable = roundEnd ? R.drawable.rounded_bg_full : R.drawable.rounded_bg;
     51         final Drawable[] layers;
     52         if (roundTop) {
     53             layers = new Drawable[]{
     54                     context.getDrawable(drawable).mutate(),
     55                     context.getDrawable(drawable).mutate(),
     56             };
     57         } else {
     58             layers = new Drawable[]{
     59                     context.getDrawable(drawable).mutate(),
     60                     context.getDrawable(roundEnd ? R.drawable.rounded_full_bg_bottom
     61                             : R.drawable.rounded_bg_bottom).mutate(),
     62             };
     63         }
     64         layers[1].setTint(Utils.getColorAttr(context, android.R.attr.colorPrimaryDark));
     65         return layers;
     66     }
     67 
     68     public void setCutPoint(int point) {
     69         mPoint = point;
     70         invalidateSelf();
     71     }
     72 
     73     public int getCutPoint() {
     74         return mPoint;
     75     }
     76 
     77     @Override
     78     public void draw(Canvas canvas) {
     79         if (mPoint >= 0 && !mRotatedBackground) {
     80             Rect bounds = getBounds();
     81             int top = bounds.top + mPoint;
     82             if (top > bounds.bottom) top = bounds.bottom;
     83             if (mRoundTop) {
     84                 mLayers[0].setBounds(bounds.left, bounds.top, bounds.right, top);
     85             } else {
     86                 mLayers[1].setBounds(bounds.left, top, bounds.right, bounds.bottom);
     87             }
     88             if (mRoundTop) {
     89                 mLayers[1].draw(canvas);
     90                 mLayers[0].draw(canvas);
     91             } else {
     92                 mLayers[0].draw(canvas);
     93                 mLayers[1].draw(canvas);
     94             }
     95         } else {
     96             mLayers[0].draw(canvas);
     97         }
     98     }
     99 
    100     @Override
    101     public void setAlpha(int alpha) {
    102         mPaint.setAlpha(alpha);
    103     }
    104 
    105     @Override
    106     public void setColorFilter(ColorFilter colorFilter) {
    107         mPaint.setColorFilter(colorFilter);
    108     }
    109 
    110     @Override
    111     public int getOpacity() {
    112         return PixelFormat.OPAQUE;
    113     }
    114 
    115     public void setRotatedBackground(boolean rotatedBackground) {
    116         mRotatedBackground = rotatedBackground;
    117     }
    118 }
    119