content: /*
   * Copyright (C) 2014 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package com.lb.launcher;
  
  import android.graphics.Canvas;
  import android.graphics.ColorFilter;
  import android.graphics.Rect;
  import android.graphics.drawable.Drawable;
  
  public class BorderCropDrawable extends Drawable {
  
      private final Drawable mChild;
      private final Rect mBoundsShift;
      private final Rect mPadding;
  
      BorderCropDrawable(Drawable child, boolean cropLeft,
              boolean cropTop, boolean cropRight, boolean cropBottom) {
          mChild = child;
  
          mBoundsShift = new Rect();
          mPadding = new Rect();
          mChild.getPadding(mPadding);
  
          if (cropLeft) {
              mBoundsShift.left = -mPadding.left;
              mPadding.left = 0;
          }
          if (cropTop) {
              mBoundsShift.top = -mPadding.top;
              mPadding.top = 0;
          }
          if (cropRight) {
              mBoundsShift.right = mPadding.right;
              mPadding.right = 0;
          }
          if (cropBottom) {
              mBoundsShift.bottom = mPadding.bottom;
              mPadding.bottom = 0;
          }
      }
  
      @Override
      protected void onBoundsChange(Rect bounds) {
          mChild.setBounds(
                  bounds.left + mBoundsShift.left,
                  bounds.top + mBoundsShift.top,
                  bounds.right + mBoundsShift.right,
                  bounds.bottom + mBoundsShift.bottom);
      }
  
      @Override
      public boolean getPadding(Rect padding) {
          padding.set(mPadding);
          return (padding.left | padding.top | padding.right | padding.bottom) != 0;
      }
  
      @Override
      public void draw(Canvas canvas) {
          mChild.draw(canvas);
      }
  
      @Override
      public int getOpacity() {
          return mChild.getOpacity();
      }
  
      @Override
      public void setAlpha(int alpha) {
          mChild.setAlpha(alpha);
      }
  
      @Override
      public void setColorFilter(ColorFilter cf) {
          mChild.setColorFilter(cf);
      }
  }
  