SmoothLine class

笔触线条

Inheritance

• Object
• PaintContent
• SmoothLine

Constructors

SmoothLine({double brushPrecision = 0.8, double minPointDistance = 2.0, bool useBezierCurve = true, int smoothLevel = 1})

SmoothLine.data({double brushPrecision = 0.4, double minPointDistance = 2.0, bool useBezierCurve = true, int smoothLevel = 1, required List<Offset> points, required List<double> strokeWidthList, required Paint paint})

SmoothLine.fromJson(Map<String, dynamic> data)

factory

Properties

brushPrecision → double

final

contentType → String

内容类型标识（用于JSON序列化）

no setter, override

hashCode → int

The hash code for this object.

no setter, inherited

minPointDistance → double

final

paint ↔ Paint

画笔配置

getter/setter pair, inherited

points ↔ List<Offset>

绘制点列表

getter/setter pair

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

smoothLevel → int

final

strokeWidthList ↔ List<double>

点之间的绘制线条权重列表

getter/setter pair

useBezierCurve → bool

final

Methods

copy() → SmoothLine

复制实例，避免对象引用传递

override

draw(Canvas canvas, Size size, bool deeper) → void

绘制核心方法 canvas 画布对象 size 画布尺寸 deeper 当前是否为底层绘制（true为历史记录层，false为实时绘制层）

override

drawing(Offset nowPoint) → void

绘制过程中调用（手指移动时）

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

startDraw(Offset startPoint) → void

开始绘制（手指按下时）

override

toContentJson() → Map<String, dynamic>

转换为JSON内容（子类实现）

override

toJson() → Map<String, dynamic>

转换为JSON对象

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited