From c9696ca687446d78de374a828183de0a5e4bace3 Mon Sep 17 00:00:00 2001 From: Héctor Ramón Jiménez Date: Fri, 19 Jun 2020 19:17:05 +0200 Subject: Add `scale_factor` to `Application` and `Sandbox` --- src/application.rs | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'src/application.rs') diff --git a/src/application.rs b/src/application.rs index 2de67eb0..92d9cbed 100644 --- a/src/application.rs +++ b/src/application.rs @@ -186,6 +186,21 @@ pub trait Application: Sized { Color::WHITE } + /// Returns the scale factor of the [`Application`]. + /// + /// It can be used to dynamically control the size of the UI at runtime + /// (i.e. zooming). + /// + /// For instance, a scale factor of `2.0` will make widgets twice as big, + /// while a scale factor of `0.5` will shrink them to half their size. + /// + /// By default, it returns `1.0`. + /// + /// [`Application`]: trait.Application.html + fn scale_factor(&self) -> f64 { + 1.0 + } + /// Runs the [`Application`]. /// /// On native platforms, this method will take control of the current thread @@ -272,6 +287,10 @@ where fn background_color(&self) -> Color { self.0.background_color() } + + fn scale_factor(&self) -> f64 { + self.0.scale_factor() + } } #[cfg(target_arch = "wasm32")] -- cgit