This fixes some rendering things which would happen with multiple state-sharing buttons. It also removes some interfaces exposing rows, views, layouts, and buttons, bringing the code closer to removing them from the FFI entirely.
WIP
WIP: keymap generation test passes
meta: Update features and version
WiP: cargo.lock
WIP: don't crash
WIP: no outlines
parsing: New tests
WIP: base level works
WIP: remove old keyboard
symbols correctly input
WIP: lodaing files
WIP: fallback works
Valid fallback
The check against fitting inside the Layout was removed: as an optimization it is unneeded, as the actual search must be optimized to be quick. In addition, the view bounds don't correspond to anything physical as long as negative offsets are allowed.
Each Button has a KeyState, which may be shared with other buttons. The list of pressed and locked buttons is used as a list of keys, causing a search for the button in the current view.
If no keys are under the touch position when dragging then release all
existing pressed keys. This fixes the problem where the last pressed key
causes events to be sent while the touch position moves outside the
keyboard extent.
Remove pre-scaling of the bounds for the keyboard and its contents.
Calculate the scale factor based on the allocation and the desired width
and height of each keyboard, using the lower value of the horizontal and
vertical scale factors.
Apply scaling in the renderer and prepare to perform centering there.
This allows us to remove a lot of #ifdef's. Either we want to use
a config.h or we don't. Since we'll want it for e.g. optional gsound
support later on let's have it.
