On 10.11 in 64-bit mode, showing a frame with a PSMTabBarControl
instance somehow causes the event loop to become occupied on
mouse movements, so that moving the mouse in a `2htdp/universe`
program is slow when more than one tab is open in DrRacket. The
modern MMTabBarView widget doesn't have that problem. Also, the
MMTabBarView widget has a Yosemite look (to replace Aqua).
Make the `focus` method shift focus to a floating frame. Also, shift
focus away from the floating frame when `focus` is used in an window
within the current main frame.
in the case that the font size has changed since it was last open
(this doesn't seem to be a problem with only one tab and
may actually be a bug in the way editor canvases with set-line-count
enabled handle font size changes, I'm not sure, but this seems
to fix a fairly annoying behavior I run into)
assume that these are part of some internal structure of something
that, in general looks like
(#:x 1 #:y 2 #:z 3)
and so prefer to indent like this:
(#:x 1
#:y 2
#:z 3)
instead of like this:
(#:x 1
#:y 2
#:z 3)
special indentation
(this could only come about if the regexp specification in the prefernces
matched (the printed out) version of strings, so it wouldn't happen with
the default preferences)
this has the advantage of that the information is inserted when the
state of the text is set up so that font sizing works
it also means that if there is a syntax object with a syntax
object on its properties with another one like that etc etc etc
they will only be rendered when they are made visible which
theoretically could be a performance improvement for some people
Try to tell Macs with two graphics cards that it's ok to
use the low-performance one for the GC bitmap (when
GL is used for that, which is OS X 10.11 and later).
Provided by Eli Barzilay.
This approach is better than a separate process, because creating
too many processes can overwhelm the OS. Also, MCI supports more
sound formats.
Add more agressive re-enabling of screen updates and explicit `update`
calls to avoid partially refreshed frames and never-updated titlebars
on El Capitan.
Also, use `close` instead of `orderOut` to hide a frame. That fixes
problems with closing windows that are in fullscreen mode.
Closesracket/drracket#33
