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List:       kwin
Subject:    Re: Review Request: adjust strict geometry policies
From:       Martin_Gräßlin <kde () martin-graesslin ! com>
Date:       2010-12-20 18:09:26
Message-ID: 20101220180926.28533.47354 () vidsolbach ! de
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Ship it!


Though I don't like that we fix client bugs, the changes make sense and are probably useful.

- Martin


On 2010-11-16 16:48:08, Thomas Lübking wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> http://svn.reviewboard.kde.org/r/5871/
> -----------------------------------------------------------
> 
> (Updated 2010-11-16 16:48:08)
> 
> 
> Review request for kwin and Martin Gräßlin.
> 
> 
> Summary
> -------
> 
> Situation as is:
> ================
> - window with constant aspect will by default loose it when maximized (eg. mplayer, NOT \
>                 fulslcreen. video gets stretched on xv); preventale by rule only
> - windows are allowed to resize them out of the maximizefull state (emcs, gvim), NOT \
>                 preventable by rules
> - windows (emacs...) may miscalcuate their size (problaby cause of dbl reparenting in kwin) \
> and -because of fixed aspect- enter a minirace with kwin (window resizes, kwin corrects \
> aspect -> window constantly shrinks on every "i fix my own size" attempt), NOT preventable by \
> rules 
> Behaviour with the patch:
> =========================
> a) Maximizefull (while being a usage bug ;-) is a userwish, the client should simply not be \
> allowed to resize out of this. period. b) The aspect should (by default) be respected by \
> maximized windows (mplayer, it just doesn't maximize. maybe this techaes ppl. into fs mode \
>                 ;-)
> -> this hits emacs/gvim as well
> c) If a rule says to disobey geometry limitations (aspect, increments) for a window, this \
> applies always (for maximized as well as unmaxmimized windows). this will allow to prevent \
> the client from shrinking itself (in a race with kwin) 
> Consequence:
> ============
> - applying this patch will fix what is imho disbehaviour on mplayer
> - additionally ruling emacs/gvim to NOT strictly obey geometry will allow to workaround the \
> mentioned bugs (which are client bugs: a client is not a WM and it's not its job to care \
> about whether its aspect/increment flag is ultimately honored. period. grrrr... ;-) 
> 
> This addresses bugs 158974 and 252314.
> https://bugs.kde.org/show_bug.cgi?id=158974
> https://bugs.kde.org/show_bug.cgi?id=252314
> 
> 
> Diffs
> -----
> 
> /trunk/KDE/kdebase/workspace/kwin/geometry.cpp 1196096 
> 
> Diff: http://svn.reviewboard.kde.org/r/5871/diff
> 
> 
> Testing
> -------
> 
> mplayer, bug 158974 - i /assume/ this will resolve bug 252314 as well, but have no idea how \
> to do "latex" mode in emacs 
> 
> Thanks,
> 
> Thomas
> 
> 


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      This is an automatically generated e-mail. To reply, visit:
      <a href="http://svn.reviewboard.kde.org/r/5871/">http://svn.reviewboard.kde.org/r/5871/</a>
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 <p>Ship it!</p>



 <pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; \
white-space: -o-pre-wrap; word-wrap: break-word;">Though I don&#39;t like that we fix client \
bugs, the changes make sense and are probably useful.</pre>  <br />







<p>- Martin</p>


<br />
<p>On November 16th, 2010, 4:48 p.m., Thomas Lübking wrote:</p>






<table bgcolor="#fefadf" width="100%" cellspacing="0" cellpadding="8" style="background-image: \
url('http://svn.reviewboard.kde.orgrb/images/review_request_box_top_bg.png'); \
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<div>Review request for kwin and Martin Gräßlin.</div>
<div>By Thomas Lübking.</div>


<p style="color: grey;"><i>Updated 2010-11-16 16:48:08</i></p>




<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
<table width="100%" bgcolor="#ffffff" cellspacing="0" cellpadding="10" style="border: 1px solid \
#b8b5a0">  <tr>
  <td>
   <pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; \
white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Situation as is: \
                ================
- window with constant aspect will by default loose it when maximized (eg. mplayer, NOT \
                fulslcreen. video gets stretched on xv); preventale by rule only
- windows are allowed to resize them out of the maximizefull state (emcs, gvim), NOT \
                preventable by rules
- windows (emacs...) may miscalcuate their size (problaby cause of dbl reparenting in kwin) and \
-because of fixed aspect- enter a minirace with kwin (window resizes, kwin corrects aspect \
-&gt; window constantly shrinks on every &quot;i fix my own size&quot; attempt), NOT \
preventable by rules

Behaviour with the patch:
=========================
a) Maximizefull (while being a usage bug ;-) is a userwish, the client should simply not be \
allowed to resize out of this. period. b) The aspect should (by default) be respected by \
maximized windows (mplayer, it just doesn&#39;t maximize. maybe this techaes ppl. into fs mode \
                ;-)
-&gt; this hits emacs/gvim as well
c) If a rule says to disobey geometry limitations (aspect, increments) for a window, this \
applies always (for maximized as well as unmaxmimized windows). this will allow to prevent the \
client from shrinking itself (in a race with kwin)

Consequence:
============
- applying this patch will fix what is imho disbehaviour on mplayer
- additionally ruling emacs/gvim to NOT strictly obey geometry will allow to workaround the \
mentioned bugs (which are client bugs: a client is not a WM and it&#39;s not its job to care \
about whether its aspect/increment flag is ultimately honored. period. grrrr... ;-)</pre>  \
</td>  </tr>
</table>


<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </h1>
<table width="100%" bgcolor="#ffffff" cellspacing="0" cellpadding="10" style="border: 1px solid \
#b8b5a0">  <tr>
  <td>
   <pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; \
white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">mplayer, bug 158974 - \
i /assume/ this will resolve bug 252314 as well, but have no idea how to do &quot;latex&quot; \
mode in emacs</pre>  </td>
 </tr>
</table>



<div style="margin-top: 1.5em;">
 <b style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Bugs: </b>


 <a href="https://bugs.kde.org/show_bug.cgi?id=158974">158974</a>, 

 <a href="https://bugs.kde.org/show_bug.cgi?id=252314">252314</a>


</div>


<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
<ul style="margin-left: 3em; padding-left: 0;">

 <li>/trunk/KDE/kdebase/workspace/kwin/geometry.cpp <span style="color: \
grey">(1196096)</span></li>

</ul>

<p><a href="http://svn.reviewboard.kde.org/r/5871/diff/" style="margin-left: 3em;">View \
Diff</a></p>




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