架构师训练营 第三周 作业

package main
import (
	"container/list"
	"fmt"
)
type printable interface {
	Print()
}
type component struct {
	name          string
	componentType string
}
func (p *component) Print() {
	fmt.Println(fmt.Sprintf("print %s(%s)", p.componentType, p.name))
}
// Container control can hold other controls
type container struct {
	component
	components list.List
}
func (c *container) Print() {
	c.component.Print()
	for i := c.components.Front(); i != nil; i = i.Next() {
		i.Value.(printable).Print()
	}
}
func (c *container) AddComponent(cpnt printable) {
	c.components.PushBack(cpnt)
}
type winform struct {
	container
}
type picture struct {
	component
}
type button struct {
	component
}
type frame struct {
	container
}
type label struct {
	component
}
type textBox struct {
	component
}
type passwordBox struct {
	component
}
type checkBox struct {
	component
}
type linkLabel struct {
	component
}
func newWinform(name string) *winform {
	return &winform{container{component: component{componentType: "WinForm", name: name}}}
}
func newPicture(name string) *picture {
	return &picture{component{componentType: "Picture", name: name}}
}
func newButton(name string) *button {
	return &button{component{componentType: "Button", name: name}}
}
func newFrame(name string) *frame {
	return &frame{container{component: component{componentType: "Frame", name: name}}}
}
func newLabel(name string) *label {
	return &label{component{componentType: "Label", name: name}}
}
func newTextBox(name string) *textBox {
	return &textBox{component{componentType: "TextBox", name: name}}
}
func newPasswordBox(name string) *passwordBox {
	return &passwordBox{component{componentType: "PasswordBox", name: name}}
}
func newCheckBox(name string) *checkBox {
	return &checkBox{component{componentType: "CheckBox", name: name}}
}
func newLinkLabel(name string) *linkLabel {
	return &linkLabel{component{componentType: "LinkLabel", name: name}}
}
func main() {
	form := newWinform("MainForm")
	form.AddComponent(newPicture("LOGO"))
	form.AddComponent(newButton("sign in"))
	form.AddComponent(newButton("sign up"))
	frame := newFrame("Frame1")
	form.AddComponent(frame)
	frame.AddComponent(newLabel("user name"))
	frame.AddComponent(newTextBox("user name textbox"))
	frame.AddComponent(newLabel("password"))
	frame.AddComponent(newPasswordBox("password box"))
	frame.AddComponent(newCheckBox("keep sign in"))
	frame.AddComponent(newLabel("keep sign in"))
	frame.AddComponent(newLinkLabel("forget password"))
	form.Print()
}