Follow-Up Feature: Icon-Enablement with Rasterization of SVGs #2621
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HannesWell
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Mar 25, 2025
Feature Proposal: Rasterization of SVGs at Runtime for Eclipse Icons Fixes eclipse-platform#1438 Eclipse currently loads icons exclusively as raster graphics (e.g., `.png`), without support for vector formats like `.svg`. A major drawback of raster graphics is their inability to scale without degrading image quality. Additionally, generating icons of different sizes requires manually rasterizing SVGs outside Eclipse, leading to unnecessary effort and many icon files. This PR introduces support for vector graphics in Eclipse, enabling SVGs to be used for icons. Existing PNG icons will continue to be loaded alongside SVGs, allowing the use of the new functionality without the need to replace all PNG files at once. --- - **How It Works**: - To use SVG icons, simply place the SVG file in the bundle and reference it in the `plugin.xml` and other necessary locations, as is done for PNGs. No additional configuration is required. - At runtime, Eclipse uses the library JSVG to rasterize the SVG into a raster image of the desired size, eliminating the need for scaling. My analysis shows that JSVG is the most suitable Java library for this purpose. - You need to write the flag `-Dswt.autoScale=quarter` into your `eclipse.ini` file or into the run arguments of a new configuration.
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Please see this Draft for a detailed description.
The new functionality of this draft can be found in the commit 05e7d58. The other commit is the functionality from the PR that this draft is based on.
Fixes eclipse-platform/eclipse.platform.swt#1438.