package main
import "fmt"
//设计说明
//组件：包括 name,type 属性,Draw 方法
//容器是可以放组件的组件
//窗口，frame 是容器
//picture,button,lable.textbox paswordbox checkbox linklabel是组件，不是容器
type Component interface{
	Draw()
}
type ComponentContainer interface {
	Component
	AddComponent(subComponent Component)
}
type BaseComponent struct {
	name string
	componentType string
}
func(base *BaseComponent)GetName() string{
	return base.name
}
func (base *BaseComponent)GetType()string{
	return base.componentType
}
func(base *BaseComponent)Draw(){
	drawContent:=fmt.Sprintf("print %s(%s)",base.GetType(),base.GetName())
	fmt.Println(drawContent)
}
func NewBaseComponent(componentType,name string ) *BaseComponent{
	component:=new(BaseComponent)
	component.componentType=componentType
	component.name=name
	return component
}
type BaseComponentContainer struct {
	Component
	subComponents []Component
}
func(this *BaseComponentContainer)AddComponent(subComponent Component){
	this.subComponents=append(this.subComponents, subComponent)
}
func(base *BaseComponentContainer)Draw(){
	base.Component.Draw()
	for _,sub:=range base.subComponents{
		sub.Draw()
	}
}
func NewBaseComponentContainer(componentType,name string) *BaseComponentContainer{
	container:=new(BaseComponentContainer)
	container.Component=NewBaseComponent(componentType,name)
	return container
}
func NewWinForm(name string )ComponentContainer{
	return NewBaseComponentContainer("WinForm",name)
}
func NewPicture(name string )Component{
	return NewBaseComponent("Picture",name)
}
func NewButton(name string )Component{
	return NewBaseComponent("Button",name)
}
func NewFrame(name string)ComponentContainer{
	return  NewBaseComponentContainer("Frame",name)
}
func NewLabel(name string )Component{
	return NewBaseComponent("Lable",name)
}
func NewTextBox(name string)Component{
	return NewBaseComponent("TextBox",name)
}
func NewPasswordBox(name string )Component{
	return NewBaseComponent("PasswordBox",name)
}
func NewCheckBox(name string )Component{
	return NewBaseComponent("CheckBox",name)
}
func NewLinkLable(name string)Component{
	return NewBaseComponent("LinkLable",name)
}
func main(){
	createSampleWindow().Draw()
}
func createSampleWindow() Component{
	var winFrom=NewWinForm("WINDOW窗口")
  winFrom.AddComponent(NewPicture("LOGO图片"))
	winFrom.AddComponent(NewButton("登录"))
	winFrom.AddComponent(NewButton("注册"))
	var frame=NewFrame("FRAME1")
	frame.AddComponent(NewLabel("用户名"))
	frame.AddComponent(NewTextBox("文本框"))
	frame.AddComponent(NewLabel("密码"))
	frame.AddComponent(NewPasswordBox("密码框"))
	frame.AddComponent(NewCheckBox("记住用户名"))
	frame.AddComponent(NewLinkLable("忘记密码"))
	winFrom.AddComponent(frame)
	return winFrom
}