Painter::draw_line() now has an optional "bool dotted" parameter that
causes it to only render every other pixel.
Note that this only works with horizontal and vertical lines at the
moment and we'll assert if called with dotted=true for a diagonal line.
Get rid of the dedicated Emoji class to make it easier to store a null
value signifying a failed lookup.
This allows us to remember failed lookups, making subsequent failures
for the same codepoint much faster. :^)
Also change the API to take a destination rect instead of a source rect
since internally it was basically creating a destination rect from the
source rect anyway. It was a little confusing.
This was a workaround to be able to build on case-insensitive file
systems where it might get confused about <string.h> vs <String.h>.
Let's just not support building that way, so String.h can have an
objectively nicer name. :^)
From here on, all strings displayed to the user are expected to
be encoded as UTF-8. The next few commits will deal with a few
existing places where this requirement is currently violated.
https://github.com/SerenityOS/serenity/issues/490
Instead of LibGUI and WindowServer building their own copies of the drawing
and graphics code, let's it in a separate LibDraw library.
This avoids building the code twice, and will encourage better separation
of concerns. :^)
