On Sun, May 16, 2010 at 05:11, Sam Spilsbury <smspil...@gmail.com> wrote:
> If you want to make the fading smooth, then you will most likely need > some form of graphical accelleration, whether that be EXA, Glitz or > G3D. There is no way to guaruntee that everyone has this. > a few frames would suffice, no accelleration needed here, unless it is already active, but ok let's follow your breadcrumbs to where you want to go: > > You have a point with your cat and mouse game though.. > > > >> > >> You cannot do this with client side decorations. > > > > why not? because of the imprecision of the absolute position information? > > that's a WM bug, has nothing to do with CSD. > > > > Some window managers have to fake out position information to make > this kind of thing work. Usually this is because they are reparenting > the window (metacity, kwin) or they are a compositing window manager > with input redirection and have to place the window offscreen to > redirect input to it on-screen (Metisse, future versions of compiz). > > In any case, there are methods of a client determining it's position > on the root window, however this is inaccurate at best and something > the client shouldn't need to be concerned with. > > If you wanted to do separated titlebar handles, there is a lot of work > that needs to go into that, namely the client drawing titlebars in a > separate window and either reparenting that window into itself or > drawing it separately. Which kind of begs the question - why not just > let the window manager do that because it already does. If you let the > window manager do this, then you can guaruntee that the titlebar will > be consistent with the rules the window manager has defined and client > won't all just do their own thing when their titlebar is off-screen. > Altogether no real problems, only a lot more work than what one would initially assume after such a confident suggestion by Mark ;) Easy to imagine alternative routes, after you put it all down like this.. > >> The window manager absolutely depends on the client to not be stupid > >> and to obey rules > > > > Doesn't this mean that we can entrust the client with more then? > > You are arguing against your own position here. > > When you have client side decorations, you give more chances for the > client to be stupid and introduce it's own window management > paradigms, drawing the buttons the window manager does not expect to > be drawn, or in extreme cases resizing or moving windows in special > ways when they are grabbed by the titlebar. > yeah, i think you cleaned up most of the question marks lying around comprehensively, thanks a lot for that!
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