Cairo doesn't seem to deal correctly with an HDC produced
by BeginPaint() that has a clipping region. The problem affects
only Win64. Work around the problem by drawing to a separate
HDC and copying to/from the screen. (To see the problem before
this patch, draw the DrRacket window to the edge of the screen
and back, and observe tha the toolbar doesn't update correctly.)
This change could affect performance, but it should mostly
be limited to refresh when a window moves.
For a non-WXME file, fall back to the original load handler,
instead of re-implementing it. This makes module caching work
the right way. Falling back to the original means closing
the port and then re-opening the file to load, but that seems
ok.
This was broken in the class100 port. The init arguments
previously handled by the class100*/kw macro need to be
explicitly passed down.
Also, an (init-rest) is needed at the leaves of the class
hierarchy to ensure that internal super init args don't
leak via error messages. (the class100 macro always
inserts these)
Added a test file so similar breakage is detectable in the
future.
When the theme-specified default font has a localized name,
using it as a Pango faily name doesn't work, with the result that
text on controls could be truncated. Get a Pango-friendly
name by converting a LOGFONT to a Pango font description and
getting the name from the font description.
"My" -> "Racket". The "My" prefix was from initial experiments,
of course, and I just never got around to changing it before.
I think these names go into a global namespace, though, at the
ObjC level, so they need to have a distinct and Racket-specific
prefix.
Changed `open-output-text-editor' to put its additions into
an edit sequence to better work with threads.
Fixed problems in editor-canvas refresh and resize events, where
the editor's refresh synchronization wasn't used properly.
Fixed race conditions in the the protocol that is used to separate
refreshes and edit sequences.
Related to PR 12749
Also, use keywords for `make-pen' and `make-brush'.
Adding `make-pen' and `make-color' creates many conflicts among
teaching libraries, such as `2htdp/image'. These are easy to fix
up in the tree, but adding such obvious names to `racket/draw'
may create other compatibility problems, so we might have to reconsider
the names.
In consultation with Asumu.
When an eventspace is created, its thread implicitly calls
`yield'. It now effectively loops with `yield' and while
catching continuation aborts.
Closes PR 12566
Use the system-supplied region to intersect with the
window region, so that drawng the border doesn't replace
the window content.
See also Kieron Hardy's post on the users' list, 2/7/12.
