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List:       kde-core-devel
Subject:    Re: Review Request: Do not fallback to Hicolor when Oxygen provides a
From:       "Michael Pyne" <mpyne () kde ! org>
Date:       2010-06-20 18:39:09
Message-ID: 20100620183909.23627.38719 () localhost
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I'll not that KIconLoader is not "incorrect" in that the icon-theme-spec do=
es specify that hicolor should be searched if the desired icon does not exi=
st in a theme. shared-mime-info kind of overrides that by saying that if no=
 specific icon is located, to search for a generic fallback icon, but that =
should only be mime icons.

One question is what do we do if hicolor happens to have an exact match of =
the required size, do we accept hicolor or try to fallback to generic? I wo=
uld say accept hicolor's more specific video-mp4 in preference to video-x-g=
eneric, but that could look ugly in several themes.


trunk/KDE/kdelibs/kdeui/icons/kiconloader.cpp
<http://reviewboard.kde.org/r/4403/#comment5794>

    Be careful with this, I'm pretty sure this code path can be run for any=
 non-User icon, not just mime icons, so doing this replace would break icon=
s under subdirectories that are currently found.



trunk/KDE/kdelibs/kdeui/icons/kiconloader.cpp
<http://reviewboard.kde.org/r/4403/#comment5795>

    Is there a reason to move generic fallback support into findMatchingIco=
n where it must be used for all icons? KIconLoader is plenty slow as it cur=
rently stands, I'm not sure this would help matters.


- Michael


On 2010-06-20 09:18:37, Aur=C3=A9lien G=C3=A2teau wrote:
> =

> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> http://reviewboard.kde.org/r/4403/
> -----------------------------------------------------------
> =

> (Updated 2010-06-20 09:18:37)
> =

> =

> Review request for kdelibs and Rafael Fern=C3=A1ndez L=C3=B3pez.
> =

> =

> Summary
> -------
> =

> When loading an icon for video-mp4, KIconLoader incorrectly returns "vide=
o.png" from Hicolor, instead of returning "video-x-generic.png" from Oxygen=
. Since Hicolor only has a 16x16 version, this results in blurry icons in D=
olphin or Gwenview when icons are bigger than 16x16.
> =

> This is because the current code fallbacks to Hicolor before looking for =
a "-x-generic" version.
> =

> =

> Diffs
> -----
> =

>   trunk/KDE/kdelibs/kdeui/icons/kiconloader.cpp 1140302 =

>   trunk/KDE/kdelibs/kdeui/tests/kiconloader_unittest.cpp 1140302 =

> =

> Diff: http://reviewboard.kde.org/r/4403/diff
> =

> =

> Testing
> -------
> =

> - Added a unit-test entry to check we get video-x-generic.
> - Icons are no longer blurry after the patch.
> =

> =

> Thanks,
> =

> Aur=C3=A9lien
> =

>


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 <pre>I&#39;ll not that KIconLoader is not &quot;incorrect&quot; in that the \
icon-theme-spec does specify that hicolor should be searched if the desired icon does \
not exist in a theme. shared-mime-info kind of overrides that by saying that if no \
specific icon is located, to search for a generic fallback icon, but that should only \
be mime icons.

One question is what do we do if hicolor happens to have an exact match of the \
required size, do we accept hicolor or try to fallback to generic? I would say accept \
hicolor&#39;s more specific video-mp4 in preference to video-x-generic, but that \
could look ugly in several themes.</pre>  <br />





<div>



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font-size: 9pt; padding: 4px 8px; text-align: left;">  <a \
href="/r/4403/diff/1/?file=29183#file29183line932" style="color: black; font-weight: \
bold; text-decoration: underline;">trunk/KDE/kdelibs/kdeui/icons/kiconloader.cpp</a>  \
<span style="font-weight: normal;">

     (Diff revision 1)

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   <td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; \
white-space: pre-wrap; word-wrap: break-word;">K3Icon \
KIconLoaderPrivate::findMatchingIconWithGenericFallbacks(const QString&amp; name, int \
size) const</pre></td>

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<pre style="margin-left: 2em">Be careful with this, I&#39;m pretty sure this code \
path can be run for any non-User icon, not just mime icons, so doing this replace \
would break icons under subdirectories that are currently found.</pre> </div>
<br />

<div>



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   <th colspan="4" bgcolor="#F0F0F0" style="border-bottom: 1px solid #C0C0C0; \
font-size: 9pt; padding: 4px 8px; text-align: left;">  <a \
href="/r/4403/diff/1/?file=29183#file29183line1068" style="color: black; font-weight: \
bold; text-decoration: underline;">trunk/KDE/kdelibs/kdeui/icons/kiconloader.cpp</a>  \
<span style="font-weight: normal;">

     (Diff revision 1)

    </span>
   </th>
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 </thead>

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   <td colspan="2"><pre style="font-size: 8pt; line-height: 140%; margin: 0; \
white-space: pre-wrap; word-wrap: break-word;">K3Icon \
KIconLoaderPrivate::findMatchingIcon(const QString&amp; name, int size) \
const</pre></td>  <td colspan="2"><pre style="font-size: 8pt; line-height: 140%; \
margin: 0; white-space: pre-wrap; word-wrap: break-word;">K3Icon \
KIconLoaderPrivate::findMatchingIcon(const QString&amp; _name, int size) \
const</pre></td>

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    <th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" \
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style="font-size: 8pt; line-height: 140%; margin: 0; white-space: pre-wrap; \
word-wrap: break-word;"></pre></td>  <th bgcolor="#b1ebb0" style="border-left: 1px \
solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font \
size="2">1044</font></th>  <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: \
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<span class="p">}</span> <span class="k">else</span> <span \
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<pre style="margin-left: 2em">Is there a reason to move generic fallback support into \
findMatchingIcon where it must be used for all icons? KIconLoader is plenty slow as \
it currently stands, I&#39;m not sure this would help matters.</pre> </div>
<br />



<p>- Michael</p>


<br />
<p>On June 20th, 2010, 9:18 a.m., Aurélien Gâteau wrote:</p>




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<div>Review request for kdelibs and Rafael Fernández López.</div>
<div>By Aurélien Gâteau.</div>


<p style="color: grey;"><i>Updated 2010-06-20 09:18:37</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;">When loading an icon for video-mp4, \
KIconLoader incorrectly returns &quot;video.png&quot; from Hicolor, instead of \
returning &quot;video-x-generic.png&quot; from Oxygen. Since Hicolor only has a 16x16 \
version, this results in blurry icons in Dolphin or Gwenview when icons are bigger \
than 16x16.

This is because the current code fallbacks to Hicolor before looking for a \
&quot;-x-generic&quot; version.</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;">- Added a unit-test entry to check we get \
                video-x-generic.
- Icons are no longer blurry after the patch.</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>trunk/KDE/kdelibs/kdeui/icons/kiconloader.cpp <span style="color: \
grey">(1140302)</span></li>

 <li>trunk/KDE/kdelibs/kdeui/tests/kiconloader_unittest.cpp <span style="color: \
grey">(1140302)</span></li>

</ul>

<p><a href="http://reviewboard.kde.org/r/4403/diff/" style="margin-left: 3em;">View \
Diff</a></p>




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