Re: Heads-up: Potentially breaking changes to the GDK drawing model pushed

Sure that it would help us if the the background was not cleared (I now
remember that we avoided using them because of this feature).


Le samedi 21 juin 2014 à 09:56 -0400, Jasper St. Pierre a écrit :
Yes, that should work. Make sure to test it, though, as
begin_paint_rect / begin_paint_region currently clears the specified
rect/region to the background set on the GdkWindow. If passing a more
exact region is too much of an annoyance, I should be able to also
change this without breaking too much so that the clear to background
only happens on expose events.

It's difficult to balance the requirements of everybody.

On Sat, Jun 21, 2014 at 9:44 AM, Jean Brefort
<jean brefort normalesup org> wrote:
        Both abiword and gnumeric do something like:
        cr = gdk_cairo_create(win); some drawing
        then relase the cairo.
        Will this still work if we use
        gdk_window_begin_paint_rect (win, rect);
        cr = gdk_cairo_create (win); some drawing
        gdk_window_end_paint (win);
        Le samedi 21 juin 2014 à 09:33 -0400, Jasper St. Pierre a
        écrit :
        > Can you two explain exactly what Abiword and Gnumeric are
        doing, what
        > APIs they're using and why and so on? We're trying to come
        up with a
        > solution that will work well under both X11 and Wayland.
        > As I said, if it's a really bad break and would require
        > changes to apps, I'll revert the patches. This is exactly
        why I sent
        > out the mail.
        > On Sat, Jun 21, 2014 at 9:18 AM, Jean Brefort
        > <jean brefort normalesup org> wrote:
        >         This will break abiword as well.
        >         Jean
        >         Le samedi 21 juin 2014 à 08:02 -0400, Morten
        Welinder a
        >         écrit :
        >         > Argh!
        >         >
        >         > Will the stream of ABI changes never end?
        >         >
        >         > Gnumeric uses this to provide a walking-ant cursor
        >         selected areas -- areas
        >         > too big for processing in the normal paint loop.
        >         >
        >         > Morten
        > --
        >   Jasper


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