如何在Kotlin中构建围绕JavaFX组件的构建器模式

import javafx.scene.control.Button
import javafx.scene.layout.HBox
import javafx.scene.text.Text

class JavaFXBuilder {
    private val config = Config()

    fun text(text: String): JavaFXBuilder {
        config.text = text
        return this
    }

    fun onClick(action: () -> Unit): JavaFXBuilder {
        config.onClick = action
        return this
    }

    fun buildText(): Text {
        val text = Text(config.text)
        text.setOnMouseClicked { config.onClick?.invoke() }
        return text
    }

    fun buildButton(): Button {
        val button = Button(config.text)
        button.setOnAction { config.onClick?.invoke() }
        return button
    }

    fun buildHBox(): HBox {
        val hbox = HBox()
        hbox.children.addAll(buildText(), buildButton())
        return hbox
    }

    private class Config {
        var text: String = ""
        var onClick: (() -> Unit)? = null
    }
}

fun main() {
    val hbox = JavaFXBuilder()
        .text("Hello World")
        .onClick { println("Button clicked") }
        .buildHBox()

    // 使用hbox进行后续操作
}