lib/web_ui/lib/src/ui/path.dart

// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

part of ui;

// For documentation see https://github.com/flutter/engine/blob/master/lib/ui/painting.dart
// ignore_for_file: public_member_api_docs

abstract class Path {
  factory Path() {
    if (engine.useCanvasKit) {
      return engine.CkPath();
    } else {
      return engine.SurfacePath();
    }
  }
  factory Path.from(Path source) {
    if (engine.useCanvasKit) {
      return engine.CkPath.from(source as engine.CkPath);
    } else {
      return engine.SurfacePath.from(source as engine.SurfacePath);
    }
  }
  PathFillType get fillType;
  set fillType(PathFillType value);
  void moveTo(double x, double y);
  void relativeMoveTo(double dx, double dy);
  void lineTo(double x, double y);
  void relativeLineTo(double dx, double dy);
  void quadraticBezierTo(double x1, double y1, double x2, double y2);
  void relativeQuadraticBezierTo(double x1, double y1, double x2, double y2);
  void cubicTo(double x1, double y1, double x2, double y2, double x3, double y3);
  void relativeCubicTo(double x1, double y1, double x2, double y2, double x3, double y3);
  void conicTo(double x1, double y1, double x2, double y2, double w);
  void relativeConicTo(double x1, double y1, double x2, double y2, double w);
  void arcTo(Rect rect, double startAngle, double sweepAngle, bool forceMoveTo);
  void arcToPoint(
    Offset arcEnd, {
    Radius radius = Radius.zero,
    double rotation = 0.0,
    bool largeArc = false,
    bool clockwise = true,
  });
  void relativeArcToPoint(
    Offset arcEndDelta, {
    Radius radius = Radius.zero,
    double rotation = 0.0,
    bool largeArc = false,
    bool clockwise = true,
  });
  void addRect(Rect rect);
  void addOval(Rect oval);
  void addArc(Rect oval, double startAngle, double sweepAngle);
  void addPolygon(List<Offset> points, bool close);
  void addRRect(RRect rrect);
  void addPath(Path path, Offset offset, {Float64List? matrix4});
  void extendWithPath(Path path, Offset offset, {Float64List? matrix4});
  void close();
  void reset();
  bool contains(Offset point);
  Path shift(Offset offset);
  Path transform(Float64List matrix4);
  // see https://skia.org/user/api/SkPath_Reference#SkPath_getBounds
  Rect getBounds();
  static Path combine(PathOperation operation, Path path1, Path path2) {
    assert(path1 != null); // ignore: unnecessary_null_comparison
    assert(path2 != null); // ignore: unnecessary_null_comparison
    if (engine.useCanvasKit) {
      return engine.CkPath.combine(operation, path1, path2);
    }
    throw UnimplementedError();
  }

  PathMetrics computeMetrics({bool forceClosed = false});
}