stone/examples/draw/main.go

package main

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

var application = &stone.Application { }
var mousePressed bool

func main () {
	application.SetTitle("hellorld")
	application.SetSize(32, 16)

	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 })
	
	channel, err := application.Run()
	if err != nil { panic(err) }
	
	application.Draw()

	for {
		event := <- channel
		switch event.(type) {
		case stone.EventQuit:
			os.Exit(0)

		case stone.EventPress:
			button := event.(stone.EventPress).Button
			if button == stone.MouseButtonLeft {
				mousePressed = true
				application.SetRune(0, 0, '+')
				application.Draw()
			}

		case stone.EventRelease:
			button := event.(stone.EventRelease).Button
			if button == stone.MouseButtonLeft {
				mousePressed = false
				application.SetRune(0, 0, 0)
				application.Draw()
			}

		case stone.EventMouseMove:
			event := event.(stone.EventMouseMove)
			if mousePressed {
				application.SetRune(event.X, event.Y, '#')
				application.Draw()
			}

		case stone.EventResize:
			application.Draw()
		}
	}
}