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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'dart:math' as math;

import 'package:flutter/material.dart';

class SliderDemo extends StatefulWidget {
  static const String routeName = '/material/slider';

  @override
  _SliderDemoState createState() => new _SliderDemoState();
}

Path _triangle(double size, Offset thumbCenter, {bool invert = false}) {
  final Path thumbPath = new Path();
  final double height = …