bridge

Documentation

Index

• type Circle
  • func (c *Circle) Draw()
• type DrawAPI
• type GreenCircle
  • func (gc *GreenCircle) DrawCircle(radius, x, y int)
• type IShape
  • func NewCircle(radius, x, y int, drawAPI DrawAPI) IShape
• type RedCircle
  • func (rc *RedCircle) DrawCircle(radius, x, y int)

Types

type Circle

type Circle struct {
	DrawAPI DrawAPI
	// contains filtered or unexported fields
}

func (*Circle) Draw

func (c *Circle) Draw()

type DrawAPI

type DrawAPI interface {
	DrawCircle(int, int, int)
}

强关联改换成弱关联，将两个角色之间的继承关系改为关联关系。由继承（或颜色在每个类中分别定义）改为组合。 以形状、颜色等属性分为多个维度，每个维度一个类型，这些类型通过组合的方式关联在一起。复用的方式减少代码量。

type GreenCircle

type GreenCircle struct {
	Color string
}

green circle

func (*GreenCircle) DrawCircle

func (gc *GreenCircle) DrawCircle(radius, x, y int)

type IShape

type IShape interface {
	Draw()
}

shape

func NewCircle

func NewCircle(radius, x, y int, drawAPI DrawAPI) IShape

type RedCircle

type RedCircle struct {
}

red circle

func (*RedCircle) DrawCircle

func (rc *RedCircle) DrawCircle(radius, x, y int)