On Thu, Jan 22, 2009 at 3:58 AM, Bipin George Mathew <[email protected]>wrote:
> Thanks Joel. This mostly clear things. btw, where did is this comment > found? I grep'ed through the compiz 0.7.8 code ( > http://packages.ubuntu.com/source/intrepid/compiz) and could not find such > a comment. Beryl's code perhaps? http://gitweb.compiz-fusion.org/?p=fusion/plugins/ezoom;a=blob;f=ezoom.c;h=5749c17e2e1fbe907f9f64e922acea59fd8f5ab7;hb=HEAD Joel. > Chris, > > You mentioned that the XServer needs rework - do you know what the nature > of the rework is and why it is needed? > > Thanks! > -Bipin > > > On Tue, Jan 20, 2009 at 8:01 PM, Joel Bosveld <[email protected]>wrote: > >> On Wed, Jan 21, 2009 at 11:57 AM, Bipin George Mathew >> <[email protected]>wrote: >> >>> Given that the upstream compiz does not use David's APIs, how is the >>> zoom plugin able to translate the co-ordinates for ButtonPress? >>> >>> While looking at the compiz code, I did find XGrabButton was called on >>> each window created to intercept the events; but I was expecting an >>> XSendEvent with the ButtonPressMask to be called with the transformed >>> co-ordinates- which I not find. Also, I read on the mailinglist that >>> clients can ignore synth events of XSendEvent. >>> Any pointers on how this translation is done? >>> >> >> >> From the comments at the top of the code: >> >> Note on input >> >> We can not redirect input yet, but this plug-in offers two fundamentally >> different >> approaches to achieve input enabled zoom: >> >> >> 1. Always have the zoomed area be in sync with the mouse cursor. This >> binds the zoom area to the mouse position at any given time. It allows using >> the original mouse cursor drawn by X, and is technically very safe. First >> used in Beryl's inputzoom. >> >> >> 2. Hide the real cursor and draw our own where it would be when zoomed >> in. This allows us to navigate with the mouse without constantly moving >> the zoom area. This is fairly close to what we want in the end when input >> redirection is available. >> >> >> This second method has one huge issue, which is bugged XFixes. After >> hiding the cursor once with XFixes, some mouse cursors will simply be >> invisible. >> The Firefox loading cursor being one of them. An other minor annoyance is >> that mouse sensitivity seems to increase as >> you zoom in, since the mouse isn't really zoomed at all. >> >> >> >
_______________________________________________ xorg mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/xorg
