TextWaterMarkPainter class

文本水印画笔

Inheritance

Constructors

TextWaterMarkPainter({Key? key, double? rotate, EdgeInsets? padding, TextStyle? textStyle, required String text, TextDirection textDirection = TextDirection.ltr})

Properties

hashCode → int
The hash code for this object.
no setterinherited
padding ↔ EdgeInsets
getter/setter pair
rotate ↔ double
getter/setter pair
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
text ↔ String
getter/setter pair
textDirection ↔ TextDirection
getter/setter pair
textStyle ↔ TextStyle
getter/setter pair

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
paintUnit(Canvas canvas, double devicePixelRatio) → Size
绘制"单元水印"，完整的水印是由单元水印重复平铺组成,返回值为"单元水印"占用空间的大小。 devicePixelRatio: 因为最终要将绘制内容保存为图片，所以在绘制时需要根据屏幕的 DPR来放大，以防止失真
override
shouldRepaint(covariant TextWaterMarkPainter oldPainter) → bool
是否需要重绘
override
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited