Theme plugin system#8153
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Preview available at https://egui-pr-preview.github.io/pr/8153-themeplugin View snapshot changes at kitdiff |
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What it does
Addition of a new system of theme plugins which allow the user to use different rules engine to compute the style for the available specialised widget style.
How to use
Create a engine implementing the trait
ThemePluginandThemeStyle<S: StyleStruct>and implement the necessary methods, then register this way (example forButtonStyle):ui.add_theme::<ButtonStyle>(&mycustomengine);Now all button will call the
ThemeStyle<ButtonStyle>method to compute the correct style and later use the cached value to avoid the costly computation.If no valid
ThemeStyle<S>or engine is available then it fallback to the default style.