Am 31.01.2012 19:49, schrieb Forest Hale:

> On 01/26/2012 04:13 AM, Sylvain Brunerie wrote:
>> 2012/1/20 Forest Hale <havoc <at> ghdigital.com <mailto:havoc <at> ghdigital.com>>
>>
>>     My own experience suggests the desired behavior in 99% of cases on Linux is the following:
>>     1. do not resize the desktop in any way (on Linux this tends to kill secondary monitors, and shuffle icons and windows around to fit the small space, both are very annoying).
>>     2. open a maximized window and request the window manager to make it borderless (there's an Atom to negotiate for this).
>>     3. grab mouse only, do not grab keyboard.
>>
>>
>> A maximized borderless window will still have panels (in any) under/over it, won't it?
>>
>> I agree with points 1 and 3, as I hate having my resolution changed and my desktop icons messed up when a game doesn't quit correctly, and as I don't see what could be prohibitive with not grabbing
>> the keyboard (this would allow Alt-F4 to close the window, Alt-F1 to open the Gnome Applications menu, but why not?). Not being able to change volume when in a fullscreen game may be, when I think of
>> it, the first issue preventing me to play games under Linux.
>
> #2 is only a clarification, it describes the current behavior.
>
> X11 allows a window to be created that is managed by the window manager (this is the normal kind) and that can then negotiate for an Atom asking for fullscreen (borderless, covers panel, etc).
>
> X11 also allows a window to be created that is NOT managed by the window manager, this kind is borderless by nature (without the window manager to add decorative window rects around it for
> interactivity), and CAN NOT receive keyboard or mouse events unless it grabs these input sources intentionally, which overrides the window manager shortcuts.

Yes this is how things work with X11, but this:

> As far as I understand it, SDL currently uses the managed type, and this is what I am saying we should stick to.

is only true for SDL 2.0. SDL 1.2 still uses windows which are not
(cannot be) managed by the window manager aka setting xoverride-redirect.

I tried to backport the SDL 2.0 window handling to SDL 1.2 and even send
a patch to Sam with an implementation that I thought was working.

Luckily he refused it and I now found out that my backport broke the old
behaviour which should be kept for window managers which don't support
the fullscreen atom and in addition the current implementation in SDL
2.0 also isn't sufficient because it will only work correctly with
XRandr mode switching.

The better XVidMode mode switching sadly can't be used reliably with
windows which are managed by the window manager.

I already have an Idea how to solve this. I think the best way would be
to add a new fullscreen method to the wm-specs on freedesktop.org which
gives more control over the window to the application and is closer to
the xoverride-redirect method in the way that it should be possible to
place the window anywhere (not restricted by panels) and on top of the
window stack when it is focused.

I have worked this out a lot more and will start a discussion about it
on the wm-spec mailing list of freedesktop.org soon.

Now to Keyboard Grabs: Yes they are really bad and i think sdl shouldn't
use them at all except for old window managers which don't support the
fullscreen atom. That's all i want to say about it now, but it
definitely needs to be discussed.

PS: I also think that the keyboard shortcut handling should be improved
possible by making another spec for it on freedesktop.org ;)

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I know I can check the repeat flag in the KEYDOWN event, but my case is more specific.
My loop looks somewhat like this:

while (running) {
SDL_WaitEvent(NULL);
while (SDL_PollEvent(&e)) {
// Handle Useful Events
}
updateStuff();
}

I basically I want to let the updateStuff() run only when there is events that matter for it, and I filter all the stuff I dont need before the main loop.
But SDL 2.0 keep firing KEYDOWN events (with repeat = 1), and updateStuff() is called needlessly.
in SDL 1.2 I can just disable key repeat and it works.
If I need to handle this case, it will complicate the code inside the while loop.

Is there any way to disable key repeat events currently?

Thanks

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