Method attachToWindow

src/main/java/trace/input/Buttons.kt:30–54

    protected var downEvents: MutableSet<Int> = LinkedHashSet()
    protected var upEvents: MutableSet<Int> = LinkedHashSet()
    protected var down: MutableSet<Int> = LinkedHashSet()

    private var on: Window? = null

    fun attachToWindow(on: Window) {
        on.addKeyboardHandler(this::state)
        on.addMouseHandler(this::mouseState)
        this.on = on

        val f = GLFW::class.java.declaredFields
        for (ff in f) {
            if (Modifier.isStatic(ff.modifiers) && ff.name.startsWith("GLFW_KEY_")) {
                try {
                    nameMap.put(ff.name.replace("GLFW_KEY_", "").toLowerCase(), ff.getInt(null))
                    nameMapBackwards.put(ff.getInt(null), ff.name.replace("GLFW_KEY_", "").toLowerCase())
                } catch (e: IllegalAccessException) {
                    e.printStackTrace()
                }
            }
        }

        nameMap.put("mouse0", -1);
        nameMap.put("mouse1", -2);
        nameMap.put("mouse2", -3);
        nameMapBackwards.put(-1, "mouse0");
        nameMapBackwards.put(-2, "mouse1");
        nameMapBackwards.put(-3, "mouse2");