[golang] A Tour of Go - 60 연습 문제

[golang] A Tour of Go - 60 연습 문제

https://go-tour-kr.appspot.com/#60

package main

import (

    "code.google.com/p/go-tour/pic"

    "image"

)

type Image struct{}

func main() {

    m := Image{}

    pic.ShowImage(m)

}

import package 변경 - "golang.org/x/tour/pic"

x, y 멤버를 갖는 구조체 Image 생성

Image에 ColorModel() 메서드, Bound 메서드, Rectagle 메서드 붙임 

package main

import (

    "golang.org/x/tour/pic"

    "image"

    "image/color"

)

type Image struct{

    w int

h int

}

func (img *Image) ColorModel() color.Model {

    return color.RGBAModel

}

func (img *Image) Bounds() image.Rectangle {

    return image.Rect(0, 0, img.w , img.h)

}

func (img *Image) At(x, y int) color.Color {

    return color.RGBA{uint8(x), uint8(y), 255, 255}

}

func main() {

    m := &Image{256, 256}

    pic.ShowImage(m)

}