Limit the dependency tree of things like the interpreter or the C++ compiler that
doesn't support it anyway.
It is still enabled inconditionally in slint-build though
When using glyph embedding, we generate a character map where each code
point is a literal char. When the font contains a semicolon and we
generate an entry for that, we write ';' and the CodeFormatter would
think the semicolon is the end of a statement and produce a newline.
That breaks the build of the generated code. Instead teach the formatter
also about single-quoted string literals.
This fixes compilation of generated Rust code when token stream contains
single-quoted semicolon.
When using glyph embedding, we generate a character map where each code
point is a literal char. When the font contains a semicolon and we
generate an entry for that, we write ';' and the CodeFormatter would
think the semicolon is the end of a statement and produce a newline.
That breaks the build of the generated code.
Replace the hand-written formatter with the use of the prettyplease
crate.
Implement basic accessibility (a11y) support, using the Qt backend.
_This should get us started, but accessibility support is an additional way to interact with UIs that is very different from the "graphical way" most users will interact with the UI. No single PR will "make a toolkit accessibility", this needs to be an ongoing effort!_
Parts of this PR:
* Add functions to access a11y-related properties to Component
* Add helper functions to Item struct
* Handle accessible- properties in the compiler
* Add documentation, add description, enforce some basic rules
* Make the Text element accessible by default
* Don't optimize away accessibility property in the LLR
* Ensure that accessibility property are marked as used
* Add some accessibility properties to the native style widgets
* Support for bool and integer `accessible` properties
* Implement basic support for accessibility
* Make basic widgets accessible by default
* Make slider focus-able and interactable with keyboard
* Tell a11y layer about value changes
* Generate QAccessible constants using bindgen
* Don't expose the `accessible` properties when using the MCU backend: There is no backend to make use of them
* Handle focus change based on keyboard focus of the window
* Report accessible widgets at correct positions
* Allow for (virtual) focus delegation at the a11y level
* Calculate value step size dynamically
* Make sure to not send notifications to a11y backend about dead objects
We changed the MSRV in the last release because some dependency depended on
Rust 1.59. But that did not concern the C++ build, for example.
Now that we rely on rust 1.59 in our own code, we should make it explicit
so that the compilation error show the proper error
* Add MCU board config setup
Let the mcu backend provide the link flags via I_DEP_* and the
Slint-build crate now offers a function to allow printing Slint-specific
rustc flags.
