添加 TornadoFX 对象会删除舞台的其他元素

Question

我在玩 TornadoFX，想在我的屏幕上添加一条水平线，看看它是如何工作的。我将其添加到我的代码中，如下所示：

    private val menuView: MenuView by inject()
    private val controller: MainController by inject()

    override val root = borderpane {

        top = menuView.root

        style {
            backgroundColor += Color.WHITE
        }

        val data = controller.getData()


        center {

            for (i in 0 until data.count()) {
                val values = data[i]
                datagrid(values) {
                    if (data.count() > 0) {
                        cellWidth = (8.0 * (values.maxBy { it.root.count() }!!.root.count()))
                    }
                    cellHeight = 20.0

                    horizontalCellSpacing = 0.0

                    maxCellsInRow = controller.maxNum
                }
            }
            
            line {
                startY = 3000.0
                endY = 3000.0
                startX = 500.0
                endX = 5000.0
            }

        }
    }

似乎在 center 组件中添加该行会导致它成为唯一呈现的内容。将 borderpane 替换为 stackpane 即可达到预期效果，如下所示：


    private val menuView: MenuView by inject()
    private val controller: MainController by inject()

    override val root = stackpane {

        style {
            backgroundColor += Color.WHITE
        }

        val data = controller.getData()


        for (i in 0 until data.count()) {
            val values = data[i]
            datagrid(values) {
                if (data.count() > 0) {
                    cellWidth = (8.0 * (values.maxBy { it.root.count() }!!.root.count()))
                }
                cellHeight = 20.0

                horizontalCellSpacing = 0.0

                maxCellsInRow = controller.maxNum
            }
        }

        line {
            startY = 3000.0
            endY = 3000.0
            startX = 500.0
            endX = 5000.0
        }
    }

但是，这会从顶部删除菜单栏，我也想保留它。有没有办法两者兼得？

Answer 1

感谢@Slaw 帮助我解决这个问题。解决方案其实很简单。在解决方案的 center 部分，我不得不将它们嵌入到 StackPane 中，而不是仅仅在那里构建所有节点。这是因为center只能取一个节点。

因此，解决方案如下所示：

    private val menuView: MenuView by inject()
    private val controller: MainController by inject()

    override val root = borderpane {

        top = menuView.root

        style {
            backgroundColor += Color.WHITE
        }

        val data = controller.getData()


        center {

            stackpane {
                for (i in 0 until data.count()) {
                    val values = data[i]
                    datagrid(values) {
                        if (data.count() > 0) {
                            cellWidth = (8.0 * (values.maxBy { it.root.count() }!!.root.count()))
                        }
                        cellHeight = 20.0

                        horizontalCellSpacing = 0.0

                        maxCellsInRow = controller.maxNum
                    }
                }
            
                line {
                    startY = 3000.0
                    endY = 3000.0
                    startX = 500.0
                    endX = 5000.0
                }
            }

        }
    }

添加 TornadoFX 对象会删除舞台的其他元素

Adding TornadoFX object removes other elements of stage

kotlin

javafx

tornadofx