package main

import "os"
import "fmt"
import "image"
import _ "image/png"
import "git.tebibyte.media/sashakoshka/stone"
import _ "git.tebibyte.media/sashakoshka/stone/backends/x"

var application = &stone.Application { }

func main () {
	application.SetTitle("color demo")
	application.SetSize(12, 7)

	iconFile16, err := os.Open("assets/scaffold16.png")
	if err != nil { panic(err) }
	icon16, _, err := image.Decode(iconFile16)
	if err != nil { panic(err) }
	iconFile16.Close()
	iconFile32, err := os.Open("assets/scaffold32.png")
	if err != nil { panic(err) }
	icon32, _, err := image.Decode(iconFile32)
	if err != nil { panic(err) }
	iconFile16.Close()
	
	application.SetIcon([]image.Image { icon16, icon32 })
	
	application.OnStart(onStart)
	application.OnResize(onResize)
	
	err = application.Run()
	if err != nil { panic(err) }
}

func onStart () {
	redraw()
}

func onResize () {
	redraw()
}

func redraw () {
	text := "RAINBOW :D"
	width, height := application.Size()
	
	application.SetDot((width - len(text)) / 2, height / 2)
	fmt.Fprintln(application, text)

	application.SetColor(0, 0, stone.ColorYellow)
	application.SetColor(width - 1, 0, stone.ColorYellow)
	application.SetColor(width - 1, height - 1, stone.ColorYellow)
	application.SetColor(0, height - 1, stone.ColorYellow)
	application.SetRune(0, 0, '+')
	application.SetRune(width - 1, 0, '+')
	application.SetRune(width - 1, height - 1, '+')
	application.SetRune(0, height - 1, '+')

	for x := 0; x < width; x ++ {
		application.SetColor(x, height / 2, stone.Color(x % 6 + 2))
	}
	
	for x := 1; x < width - 1; x ++ {
		application.SetRune(x, 0, '=')
		application.SetColor(x, 0, stone.ColorRed)
		application.SetRune(x, height - 1, '=')
		application.SetColor(x, height - 1, stone.ColorRed)
	}
}