如何在更改画布大小时让我在javafx画布上绘制的图像自动缩放

canvas.widthProperty().addListener((observable, oldValue, newValue) -> {
    // 处理宽度变化
});

canvas.heightProperty().addListener((observable, oldValue, newValue) -> {
    // 处理高度变化
});

canvas.widthProperty().addListener((observable, oldValue, newValue) -> {
    double newWidth = newValue.doubleValue();
    double newHeight = canvas.getHeight();

    // 创建临时画布
    Canvas tempCanvas = new Canvas(newWidth, newHeight);
    GraphicsContext gc = tempCanvas.getGraphicsContext2D();

    // 缩放绘制图像
    gc.drawImage(image, 0, 0, newWidth, newHeight);

    // 将临时画布的内容复制到原始画布
    canvas.getGraphicsContext2D().drawImage(tempCanvas.snapshot(null, null), 0, 0);
});

canvas.heightProperty().addListener((observable, oldValue, newValue) -> {
    double newWidth = canvas.getWidth();
    double newHeight = newValue.doubleValue();

    // 创建临时画布
    Canvas tempCanvas = new Canvas(newWidth, newHeight);
    GraphicsContext gc = tempCanvas.getGraphicsContext2D();

    // 缩放绘制图像
    gc.drawImage(image, 0, 0, newWidth, newHeight);

    // 将临时画布的内容复制到原始画布
    canvas.getGraphicsContext2D().drawImage(tempCanvas.snapshot(null, null), 0, 0);
});