Because re-generating the Skia image is slow and there is no point
storing both the image buffer and the SkiaImage in the cache as it
is basically the same information.
Remove the renderer-skia-opengl "dev" feature again, as on Windows with a
--all-features build in the CI it'll cause
Skia to be built from source. That's not possible in the CI due to long paths as the skia submodule is checked out.
Remove release_graphics_resources() as it's always connected to dropping
the entire renderer's canvas. That one in turn is already prepared, i.e.
for femtovg it makes sure that the context is current.
Move the rendering notifier into the Renderer. This duplicates a little bit of code, but it
(1) Allows for avoiding the flush of femtovg/skia if no rendering notifier is
registered
(2) Paves the way of gracefully handling the situation where the renderer doesn't support this yet
Commit 0ee361d994 regressed on
https://github.com/slint-ui/slint/issues/1269 as the inner_size()
returned at the time during event processing is already the future
value, that will change again when processing the resize event.
Instead of storing the last received value, process the event at the
appropriate MainEventsCleared stage.
Resize the glutin context when we receive a resize event from winit.
This is the approach recommended by glutin/winit's documentation.
This approach also avoids jitter when rendering with metal (not
implemented yet, but tested locally :)
This field duplicates the winit window's inner size. It is set on a
WindowEvent::Resized(), after which
`winit:🪟:Window::inner_size()` returns the same value.
Colorization is typically implemented using an intermediate layer and since
usually it doesn't change so often, it's faster to cache the result in the existing SkImage cache
per Image item.
Go through the default font manager in style matching first, so that the empty family is matched against system defaults.
Otherwise the first registered custom font because the overall default.
It may happen that the clip region becomes empty (for literally invisible items).
For example this happens in the printer demo.
In that case we want to return an empty rect.
