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List: kwin
Subject: Re: Review Request: Clear deleted window thumbnails
From: Martin_Gräßlin <kde () martin-graesslin ! com>
Date: 2011-08-27 6:40:38
Message-ID: 20110827064038.32033.78139 () vidsolbach ! de
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> On Aug. 26, 2011, 5:20 p.m., Thomas Lübking wrote:
> > kwin/effects/taskbarthumbnail/taskbarthumbnail.cpp, line 122
> > <http://git.reviewboard.kde.org/r/102445/diff/1/?file=32940#file32940line122>
> >
> > No idea about the tabstrip, but this should in general likely be
> >
> > effects->addRepaint(w->geometry());
> >
> > yesno?
> >
I think both is wrong as we need to repaint the thumbnail area. I'm pretty sure that \
it worked for sebas because on active the geometry of each window would include the \
thumbnail area.
Oh and obviously the easiest solution to the question would be: w->addRepaintFull() \
;-)
- Martin
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
http://git.reviewboard.kde.org/r/102445/#review6035
-----------------------------------------------------------
On Aug. 26, 2011, 2:57 p.m., Sebastian Kügler wrote:
>
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> http://git.reviewboard.kde.org/r/102445/
> -----------------------------------------------------------
>
> (Updated Aug. 26, 2011, 2:57 p.m.)
>
>
> Review request for kwin.
>
>
> Summary
> -------
>
> When thumbnails are shown and a window is deleted, only the other, still existing \
> windows are being repainted. The deleted window stays on the screen until \
> repainted. In the typical taskbar thumbnail case, that's not a problem, since the \
> thumbnail of a deleted window is just never shown (no tooltips in that case).
> In the Windowstrip applet, which is used as application switcher in Active, when \
> the window strip is not as wide as the screen, the windows shift left, leave a \
> blank space on the right which doesn't get cleared, so a ghost of the window stays \
> on screen.
> The patch addresses this by adding the rect of the vanishing window to the area to \
> repaint in the next frame, essentially clearing exactly the part that we want.
> I'd like to commit to master and 4.7.
>
>
> Diffs
> -----
>
> kwin/effects/taskbarthumbnail/taskbarthumbnail.cpp 7761ba5
>
> Diff: http://git.reviewboard.kde.org/r/102445/diff
>
>
> Testing
> -------
>
> start plasma-contour, with 3 open windows, close on of them from the windowstrip.
>
> Without the patch, you'll see 3 windows painted, the third of which gets cleared \
> only after an artificially triggered repaint, e.g. by dragging the rest of the \
> windows over it.
> With the patch, behaviour is as expected, the preview of the rightmost window is \
> cleared.
>
> Thanks,
>
> Sebastian
>
>
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This is an automatically generated e-mail. To reply, visit:
<a href="http://git.reviewboard.kde.org/r/102445/">http://git.reviewboard.kde.org/r/102445/</a>
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<br />
<blockquote style="margin-left: 1em; border-left: 2px solid #d0d0d0; padding-left: \
10px;"> <p style="margin-top: 0;">On August 26th, 2011, 5:20 p.m., <b>Thomas \
Lübking</b> wrote:</p> <blockquote style="margin-left: 1em; border-left: 2px solid \
#d0d0d0; padding-left: 10px;">
<table width="100%" border="0" bgcolor="white" style="border: 1px solid #C0C0C0; \
border-collapse: collapse; margin: 2px padding: 2px;"> <thead>
<tr>
<th colspan="4" bgcolor="#F0F0F0" style="border-bottom: 1px solid #C0C0C0; \
font-size: 9pt; padding: 4px 8px; text-align: left;"> <a \
href="http://git.reviewboard.kde.org/r/102445/diff/1/?file=32940#file32940line122" \
style="color: black; font-weight: bold; text-decoration: \
underline;">kwin/effects/taskbarthumbnail/taskbarthumbnail.cpp</a> <span \
style="font-weight: normal;">
(Diff revision 1)
</span>
</th>
</tr>
</thead>
<tbody style="background-color: #e4d9cb; padding: 4px 8px; text-align: center;">
<tr>
<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">void \
TaskbarThumbnailEffect::slotWindowAdded(EffectWindow* w)</pre></td>
</tr>
</tbody>
<tbody>
<tr>
<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" \
align="right"><font size="2"></font></th> <td bgcolor="#c5ffc4" width="50%"><pre \
style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td> <th \
bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid \
#C0C0C0;" align="right"><font size="2">122</font></th> <td bgcolor="#c5ffc4" \
width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span \
class="n">effects</span><span class="o">-></span><span \
class="n">addRepaint</span><span class="p">(</span><span class="n">w</span><span \
class="o">-></span><span class="n">rect</span><span \
class="p">());</span></pre></td> </tr>
</tbody>
</table>
<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: \
-pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">No idea about the \
tabstrip, but this should in general likely be
effects->addRepaint(w->geometry());
yesno?
</pre>
</blockquote>
</blockquote>
<pre style="margin-left: 1em; white-space: pre-wrap; white-space: -moz-pre-wrap; \
white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">I think \
both is wrong as we need to repaint the thumbnail area. I'm pretty sure that it \
worked for sebas because on active the geometry of each window would include the \
thumbnail area.
Oh and obviously the easiest solution to the question would be: \
w->addRepaintFull() ;-)</pre> <br />
<p>- Martin</p>
<br />
<p>On August 26th, 2011, 2:57 p.m., Sebastian Kügler wrote:</p>
<table bgcolor="#fefadf" width="100%" cellspacing="0" cellpadding="8" \
style="background-image: \
url('http://git.reviewboard.kde.org/media/rb/images/review_request_box_top_bg.png'); \
background-position: left top; background-repeat: repeat-x; border: 1px black \
solid;"> <tr>
<td>
<div>Review request for kwin.</div>
<div>By Sebastian Kügler.</div>
<p style="color: grey;"><i>Updated Aug. 26, 2011, 2:57 p.m.</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;">When thumbnails are shown and a window is deleted, only the other, still \
existing windows are being repainted. The deleted window stays on the screen until \
repainted. In the typical taskbar thumbnail case, that's not a problem, since the \
thumbnail of a deleted window is just never shown (no tooltips in that case).
In the Windowstrip applet, which is used as application switcher in Active, when the \
window strip is not as wide as the screen, the windows shift left, leave a blank \
space on the right which doesn't get cleared, so a ghost of the window stays on \
screen.
The patch addresses this by adding the rect of the vanishing window to the area to \
repaint in the next frame, essentially clearing exactly the part that we want.
I'd like to commit to master and 4.7.</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;">start plasma-contour, with 3 open windows, close on of them from the \
windowstrip.
Without the patch, you'll see 3 windows painted, the third of which gets cleared \
only after an artificially triggered repaint, e.g. by dragging the rest of the \
windows over it.
With the patch, behaviour is as expected, the preview of the rightmost window is \
cleared.</pre> </td>
</tr>
</table>
<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
<ul style="margin-left: 3em; padding-left: 0;">
<li>kwin/effects/taskbarthumbnail/taskbarthumbnail.cpp <span style="color: \
grey">(7761ba5)</span></li>
</ul>
<p><a href="http://git.reviewboard.kde.org/r/102445/diff/" style="margin-left: \
3em;">View Diff</a></p>
</td>
</tr>
</table>
</div>
</body>
</html>
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