您如何利用SWT的Hi-DPI支持图标? [英] How do you utilize SWT's Hi-DPI support for icons?

问题描述

根据 Eclipse项目霓虹灯-新的和值得注意的，SWT支持Hi-DPI监视器的自动缩放. SWT是否仅支持自动缩放"，还是提供其他功能，例如为各种DPI或缩放级别定义不同的图像?如果是这样，我需要研究哪些课程?

According to Eclipse Project Neon - New and Noteworthy, SWT supports auto-scaling for Hi-DPI monitors. Does SWT only support "auto-scaling", or does it provide additional features such as defining different images for various DPIs or zoom levels? If so, what are the classes I need to be looking into?

推荐答案

SWT的Image具有一个新的构造函数，该构造函数接受ImageDataProvider以便为不同的缩放级别提供图像数据.如果将应用程序移动到具有不同DPI的监视器，或者更改了缩放级别，则会要求提供程序返回新缩放级别(例如150或200)的图像.

SWT's Image has a new constructor that accepts an ImageDataProvider in order to provide image data for different zoom levels. if the application is moved to a monitor with different DPI or the zoom level is changed, the provider will be asked to return an image for the new zoom level (e.g. 150 or 200).

为了完整起见，还有一个ImageFileNameProvider.它的作用类似于ImageDataProvider，但返回文件名.

For the sake of completeness, there is also an ImageFileNameProvider. It works similar to the ImageDataProvider but returns file names instead.

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