SNGtk+: scala-native bindings for Glib, Gtk+, ...

Experimental scala-native bindings for Glib / Gtk+.

Warning: This project is in an early experimental stage. Most of the bindings are still missing. The API and especially the semantics for GObject access in Scala may change any time!

Introduction

SNGtk+ provides object-oriented Scala Native bindings for Gtk+ (and GLib, …). Here’s a simple example:

import gtk._
import scalanative.unsigned._

object Main {
  import scala.scalanative.interop.RefZone.Implicits.None

  var entry: GtkEntry = _
  var greeting: GtkLabel = _


  def main(args: Array[String]): Unit = {

    Gtk.init(args)

    val win = GtkWindow()
    win.title = "Greetings"
    win.setBorderWidth(10.toUInt)

    win.onDestroy(exit)

    val grid = GtkGrid()
    grid.setColumnSpacing(5.toUInt)
    grid.setRowSpacing(10.toUInt)

    val label = GtkLabel("Name:")
    grid.attach(label,0,0,1,1)

    entry = GtkEntry()
    grid.attach(entry,1,0,1,1)

    val button = GtkButton.withLabel("Greet!")
    grid.attach(button,0,1,2,1)

    greeting = GtkLabel("")
    greeting.setSizeRequest(-1,30)
    grid.attach(greeting,0,2,2,1)

    button.onClicked(greet)

    win.add(grid)
    win.showAll()


    Gtk.main()

  }

  def exit(): Unit = {
    Gtk.mainQuit()
  }

  def greet(): Unit = {
    greeting.setMarkup(s"<span size='large'>Hello ${entry.text}!</span>")
  }

}