Window previews in xfwm4

[Liviu Andronic]

On Sat, Jan 24, 2015 at 10:53 PM, Olivier Fourdan <fourdan at gmail.com> wrote:
> Hi
>
> Meanwhile I've pushed in git master the implementation I was trying to
> explain, it seems to work quite well.
>
Sounds awesome! Is a development release planned any time soon?

Thanks,
Liviu


> Cheers,
> Olivier
>
>
> On 15 January 2015 at 19:46, Sonal Santan <sonal.santan at gmail.com> wrote:
>> I hope to look into it soon.
>>
>> -Sonal
>>
>>
>> On Wed, Jan 14, 2015 at 10:52 AM, Olivier Fourdan <fourdan at gmail.com> wrote:
>>>
>>> Sonal,
>>>
>>> The implementation I pointed out is actually much simpler than yours,
>>> and you get GdkPixbuf as well, I reckon it's much better and efficient
>>> than using XGetImage().
>>>
>>> Cheers
>>> Olivier
>>>
>>>
>>> On 13 January 2015 at 15:52, Olivier Fourdan <fourdan at gmail.com> wrote:
>>> > Nope, sorry.
>>> >
>>> > Olivier
>>> >
>>> > On 13 January 2015 at 15:08, Sonal Santan <sonal.santan at gmail.com>
>>> > wrote:
>>> >> Hello,
>>> >>
>>> >> IMHO this implementation fits very well with the existing
>>> >> infrastructure in
>>> >> tabwin which expects a GdkPixbuf to draw onto the window buttons,
>>> >> requiring
>>> >> minimal changes overall. I do agree that in an ideal world we would not
>>> >> use
>>> >> XGetImage to capture the contents of the preview pixmap but directly
>>> >> render
>>> >> the preview over a picture provided by the preview client. But that
>>> >> would
>>> >> require more changes. Also, I believe this implementation is inline
>>> >> with my
>>> >> original proposal of using XImage as a mechanism to exchange previews
>>> >> to
>>> >> clients. The images are small so the overhead should not be huge.
>>> >>
>>> >> Can we go ahead with the current design for now while I will look at
>>> >> optimizing the implementation as a future step?
>>> >>
>>> >> -Sonal
>>> >>
>>> >> On Mon, Jan 12, 2015 at 10:10 AM, Olivier Fourdan <fourdan at gmail.com>
>>> >> wrote:
>>> >>>
>>> >>> Hi
>>> >>>
>>> >>> I haven't looked much at the code, but using XGetImage and XImage
>>> >>> conversion seem inappropriate here.
>>> >>>
>>> >>> Using a compositor, all client windows are unredirected, meaning they
>>> >>> are rendered to an offscreen pixmap already, and the compositor has
>>> >>> all that's required already, it "knows" about all this so all you need
>>> >>> to do is to add hooks in the compositor to retrieve this and use that
>>> >>> picture, that's all. Metacity's compositor was based originally on
>>> >>> xfwm4's and had that feature up until not too long ago (not sure it's
>>> >>> still there), you should look there for an example.
>>> >>>
>>> >>> Also, please note that the gtk_ prefix is for gtk alone.
>>> >>>
>>> >>> Cheers,
>>> >>> Olivier
>>> >>
>>> >>
>>> >>
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>>
>>
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