BarChartTileSkin.java 文件源码

@Override protected void registerListeners() {
    super.registerListeners();
    tile.getBarChartItems().addListener(new WeakListChangeListener<>(change -> {
        while (change.next()) {
            if (change.wasAdded()) {
                change.getAddedSubList().forEach(addedItem -> {
                    barChartPane.getChildren().add(addedItem);
                    addedItem.addChartDataEventListener(updateHandler);
                    EventHandler<MouseEvent> clickHandler = e -> tile.fireTileEvent(new TileEvent(EventType.SELECTED_CHART_DATA, addedItem.getChartData()));
                    handlerMap.put(addedItem, clickHandler);
                    addedItem.setOnMousePressed(clickHandler);
                });
                updateChart();
            } else if (change.wasRemoved()) {
                change.getRemoved().forEach(removedItem -> {
                    removedItem.removeChartDataEventListener(updateHandler);
                    removedItem.removeEventHandler(MouseEvent.MOUSE_PRESSED, handlerMap.get(removedItem));
                    barChartPane.getChildren().remove(removedItem);
                });
                updateChart();
            }
        }
    }));

    pane.widthProperty().addListener(paneSizeListener);
    pane.heightProperty().addListener(paneSizeListener);
}