This intends to provide a configurable rectangular "drop shadow". The
API is modeled after CSS/HTML5 Canvas where the element can be "bound"
to an existing rectangular shape (geometry and radius), the offset can
be used to place the shadow and color and blur configure the shadow.
The shadow's color fades into transparent.
TODO (in subsequent changes):
* Documentation
* Qt implementation
The generated code for structs includes #[derive(Debug)],
which requires Debug for all fields. When the field is a ModelHandle
it's up to us to provide an implementation.
This will give a nicer API to expose to .60. If the struct weren't
repr(C) then the booleans would be nicely packed, but alas that's not
happening. On the other hand we're not keeping many instances of them
around.
Fold CharacterInput into KeyPressed/KeyReleased and store the "key" as a string.
Also, instead of exposing the KeyCode we're encoding special characters
into the string.
This also makes the focus() method available as a member function on any
item, but the resolve_element_reference_in_set_focus_calls() pass will
check if the elements are valid.
The check for `has-focus` to determine a focusable item was replaced
with an annotation on the built-in elements, so that `has-focus` can
later be implemented as a built-in function through the run-time,
without the need for a boolean property.
This allows creating multiple windows for example, and it will allow for
showing windows in those tests that require a mapped window.
As a bonus, the run() function on generated components is not consuming
anymore.
This requires two changes to the function:
(1) When we can't convert to one type to the other, try the reverse.
(2) When merging fields, apply the algorithm recursively for common fields.
This patch tries to improve the ability to convert different kinds of
object literals in an array into a common type. We used to take the
first entry as the "shape" of all elements, which meant that if the
first element was missing a field it would be silently dropped from all
future fields.
Instead, this patch merges the fields.
