中心裁剪图像JavaFX [英] Center crop image JavaFX

问题描述

如何使用JavaFX完成Android scaleType =centerCrop？

How can I accomplish Android scaleType="centerCrop" using JavaFX?

我有我的图像视图：

ImageView myImage = new ImageView("https://example.com/image/my_image.png");

//maybe
//myImage.scaleType = "centerCrop";

推荐答案

感谢@TravisF的帖子，我已经实现了最后的解决方案，使图像始终具有相同的高度，widht和位置（中心）。

Thanks to @TravisF for the post, I've implemented the last solution to make the image always has the same height, widht and position (center).

double newMeasure = (userImage.getImage().getWidth() < userImage.getImage().getHeight()) ? userImage.getImage().getWidth() : userImage.getImage().getHeight();
double x = (userImage.getImage().getWidth() - newMeasure) / 2;
double y = (userImage.getImage().getHeight() - newMeasure) / 2;

Rectangle2D rect = new Rectangle2D(x, y, newMeasure, newMeasure);
userImage.setViewport(rect);
userImage.setFitWidth(150);
userImage.setFitHeight(150);
userImage.setSmooth(true);

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