content: package com.alburivan.slickform.tooltip;
  
  /*
   * The MIT License (MIT)
   * <p/>
   * Copyright (c) 2016 Douglas Nassif Roma Junior
   * <p/>
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   * <p/>
   * The above copyright notice and this permission notice shall be included in all
   * copies or substantial portions of the Software.
   * <p/>
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   * SOFTWARE.
   */
  import android.graphics.Canvas;
  import android.graphics.Color;
  import android.graphics.ColorFilter;
  import android.graphics.Paint;
  import android.graphics.Path;
  import android.graphics.PixelFormat;
  import android.graphics.Rect;
  import android.graphics.drawable.ColorDrawable;
  import android.support.annotation.ColorInt;
  
  /**
   * ArrowDrawable
   * Created by douglas on 09/05/16.
   */
  class ArrowDrawable extends ColorDrawable {
  
      public static final int LEFT = 0, TOP = 1, RIGHT = 2, BOTTOM = 3;
  
      private final Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
      private final int mBackgroundColor;
      private Path mPath;
      private final int mDirection;
  
      ArrowDrawable(@ColorInt int foregroundColor, int direction) {
          this.mBackgroundColor = Color.TRANSPARENT;
          this.mPaint.setColor(foregroundColor);
          this.mDirection = direction;
      }
  
      @Override
      protected void onBoundsChange(Rect bounds) {
          super.onBoundsChange(bounds);
          updatePath(bounds);
      }
  
      private synchronized void updatePath(Rect bounds) {
          mPath = new Path();
  
          switch (mDirection) {
              case LEFT:
                  mPath.moveTo(bounds.width(), bounds.height());
                  mPath.lineTo(0, bounds.height() / 2);
                  mPath.lineTo(bounds.width(), 0);
                  mPath.lineTo(bounds.width(), bounds.height());
                  break;
              case TOP:
                  mPath.moveTo(0, bounds.height());
                  mPath.lineTo(bounds.width() / 2, 0);
                  mPath.lineTo(bounds.width(), bounds.height());
                  mPath.lineTo(0, bounds.height());
                  break;
              case RIGHT:
                  mPath.moveTo(0, 0);
                  mPath.lineTo(bounds.width(), bounds.height() / 2);
                  mPath.lineTo(0, bounds.height());
                  mPath.lineTo(0, 0);
                  break;
              case BOTTOM:
                  mPath.moveTo(0, 0);
                  mPath.lineTo(bounds.width() / 2, bounds.height());
                  mPath.lineTo(bounds.width(), 0);
                  mPath.lineTo(0, 0);
                  break;
          }
  
          mPath.close();
      }
  
      @Override
      public void draw(Canvas canvas) {
          canvas.drawColor(mBackgroundColor);
          if (mPath == null)
              updatePath(getBounds());
          canvas.drawPath(mPath, mPaint);
      }
  
      @Override
      public void setAlpha(int alpha) {
          mPaint.setAlpha(alpha);
      }
  
      public void setColor(@ColorInt int color) {
          mPaint.setColor(color);
      }
  
      @Override
      public void setColorFilter(ColorFilter colorFilter) {
          mPaint.setColorFilter(colorFilter);
      }
  
      @Override
      public int getOpacity() {
          if (mPaint.getColorFilter() != null) {
              return PixelFormat.TRANSLUCENT;
          }
  
          switch (mPaint.getColor() >>> 24) {
              case 255:
                  return PixelFormat.OPAQUE;
              case 0:
                  return PixelFormat.TRANSPARENT;
          }
          return PixelFormat.TRANSLUCENT;
      }
  }