63e48dc855
* Closes https://github.com/emilk/egui/issues/3602 You can now zoom any egui app by pressing Cmd+Plus, Cmd+Minus or Cmd+0, just like in a browser. This will change the current `zoom_factor` (default 1.0) which is persisted in the egui memory, and is the same for all viewports. You can turn off the keyboard shortcuts with `ctx.options_mut(|o| o.zoom_with_keyboard = false);` `zoom_factor` can also be explicitly read/written with `ctx.zoom_factor()` and `ctx.set_zoom_factor()`. This redefines `pixels_per_point` as `zoom_factor * native_pixels_per_point`, where `native_pixels_per_point` is whatever is the native scale factor for the monitor that the current viewport is in. This adds some complexity to the interaction with winit, since we need to know the current `zoom_factor` in a lot of places, because all egui IO is done in ui points. I'm pretty sure this PR fixes a bunch of subtle bugs though that used to be in this code. `egui::gui_zoom::zoom_with_keyboard_shortcuts` is now gone, and is no longer needed, as this is now the default behavior. `Context::set_pixels_per_point` is still there, but it is recommended you use `Context::set_zoom_factor` instead. |
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README.md
GUI implementation
This is the core library crate egui. It is fully platform independent without any backend. You give the egui library input each frame (mouse pos etc), and it outputs a triangle mesh for you to paint.