javafx-clipview到一个组?

clipView基本上只是在其内容中创建一个视图门户。下面是一个简单的例子。(当clip.maxy为<scene.height时,需要正确处理clipy)。

var group = VBox { };
var ndx:Integer = 0;
def cv : ClipView = ClipView {
    pannable: false
    node: group
    width: bind scene.width - sb.layoutBounds.width
    height: bind scene.height
};
var scene: Scene;
var sb: ScrollBar;
Stage {
    title: "ClipView Test"
    scene: scene = Scene {
        width: 250
        height: 80
        content: [
            cv,
            Rectangle {
                layoutX: bind scene.width - sb.layoutBounds.width - 50
                width: 50
                height: 50
                fill: Color.RED
                onMouseClicked: function(e) {
                    insert Text { content: "Text - {ndx++}" } into group.content;
                    if(cv.maxClipY > scene.height) {
                        cv.clipY = cv.maxClipY;
                    }
                }
            }
            sb = ScrollBar {
                vertical: true
                layoutX: bind scene.width - sb.layoutBounds.width
                height: bind scene.height
                min: 0
                max: bind cv.maxClipY
                value: bind cv.clipY with inverse
            }

        ]
    }
}