content: /*
   * Copyright (C) 2016 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.android.launcher3.graphics;
  
  import android.graphics.Outline;
  import android.graphics.Path;
  import android.graphics.drawable.shapes.PathShape;
  import android.support.annotation.NonNull;
  
  /**
   * Wrapper around {@link android.graphics.drawable.shapes.PathShape}
   * that creates a shape with a triangular path (pointing up or down).
   */
  public class TriangleShape extends PathShape {
      private Path mTriangularPath;
  
      public TriangleShape(Path path, float stdWidth, float stdHeight) {
          super(path, stdWidth, stdHeight);
          mTriangularPath = path;
      }
  
      public static TriangleShape create(float width, float height, boolean isPointingUp) {
          Path triangularPath = new Path();
          if (isPointingUp) {
              triangularPath.moveTo(0, height);
              triangularPath.lineTo(width, height);
              triangularPath.lineTo(width / 2, 0);
              triangularPath.close();
          } else {
              triangularPath.moveTo(0, 0);
              triangularPath.lineTo(width / 2, height);
              triangularPath.lineTo(width, 0);
              triangularPath.close();
          }
          return new TriangleShape(triangularPath, width, height);
      }
  
      @Override
      public void getOutline(@NonNull Outline outline) {
          outline.setConvexPath(mTriangularPath);
      }
  }
  