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List:       kde-core-devel
Subject:    Re: Review Request: fix the rect passed to kcapacitybar paint method
From:       Thomas_Lübking <thomas.luebking () web ! de>
Date:       2012-01-10 19:49:48
Message-ID: 20120110194948.5076.82289 () vidsolbach ! de
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> On Jan. 10, 2012, 6:08 p.m., Thomas Lübking wrote:
> > kdeui/widgets/kcapacitybar.cpp, line 374
> > <http://git.reviewboard.kde.org/r/103669/diff/2/?file=46380#file46380line374>
> > 
> > rather "..., contentsRect());"
> > Otherwise looks fine (i guess setCllipRegion() is overhead)
> 
> Hugo Pereira Da Costa wrote:
> Concerning setClipRegion() overhead, no clue.
> 
> Concerning passing contentsRect() instead of rect(), well, QStyleOption::initFrom \
> uses widget->rect() by default. Now, other widgets implementation might use \
> contentsRect() when initializing their options. Testing, both work (I guess cause \
> the margin is zero :)).

Margins default to zero, so unless sbd. sets sth. different on the capacitybar \
there's no difference. What is the correct one depends on "do i want to have the \
style painting the margin as well"

Since the entire stuff was added about Qt 4.6 or so (with advanced styleShitting \
[sic! ;-] support) it seems expectable that several widgets simply ignore it, esp. \
esp. for the default implementation of QStyleOption (could be to paint the widget \
background of a WA_StyledBackground window etc.)

My impression in this context was that the contentsRect is addressed. *shrug*


- Thomas


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On Jan. 10, 2012, 5:06 p.m., Hugo Pereira Da Costa wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> http://git.reviewboard.kde.org/r/103669/
> -----------------------------------------------------------
> 
> (Updated Jan. 10, 2012, 5:06 p.m.)
> 
> 
> Review request for kdelibs.
> 
> 
> Description
> -------
> 
> fixes the rect passed to paint method so that it matches the widget rect and not \
> the event (clip) rect, since the former is what's expected by widget styles. 
> 
> This addresses bug 290879.
> http://bugs.kde.org/show_bug.cgi?id=290879
> 
> 
> Diffs
> -----
> 
> kdeui/widgets/kcapacitybar.cpp 6e63c3f 
> 
> Diff: http://git.reviewboard.kde.org/r/103669/diff/diff
> 
> 
> Testing
> -------
> 
> Fixes bug above.
> No regression with other styles.
> 
> 
> Thanks,
> 
> Hugo Pereira Da Costa
> 
> 


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      This is an automatically generated e-mail. To reply, visit:
      <a href="http://git.reviewboard.kde.org/r/103669/">http://git.reviewboard.kde.org/r/103669/</a>
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<blockquote style="margin-left: 1em; border-left: 2px solid #d0d0d0; padding-left: \
10px;">  <p style="margin-top: 0;">On January 10th, 2012, 6:08 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>
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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="http://git.reviewboard.kde.org/r/103669/diff/2/?file=46380#file46380line374" \
style="color: black; font-weight: bold; text-decoration: \
underline;">kdeui/widgets/kcapacitybar.cpp</a>  <span style="font-weight: normal;">

     (Diff revision 2)

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   <td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">QSize \
KCapacityBar::minimumSizeHint() const</pre></td>

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    <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">374</font></th>  <td bgcolor="#c5ffc4" \
width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">    <span \
class="n">drawCapacityBar</span><span class="p">(</span><span \
class="o">&amp;</span><span class="n">p</span><span class="p">,</span> <span \
class="n">rect</span><span class="p">());</span></pre></td>  </tr>

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  <pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: \
-pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">rather &quot;..., \
contentsRect());&quot; Otherwise looks fine (i guess setCllipRegion() is \
overhead)</pre>  </blockquote>



 <p>On January 10th, 2012, 6:37 p.m., <b>Hugo Pereira Da Costa</b> wrote:</p>
 <blockquote style="margin-left: 1em; border-left: 2px solid #d0d0d0; padding-left: \
10px;">  <pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: \
-pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Concerning \
setClipRegion() overhead, no clue.

Concerning passing contentsRect() instead of rect(), well, QStyleOption::initFrom \
uses widget-&gt;rect() by default. Now, other widgets implementation might use \
contentsRect() when initializing their options. Testing, both work (I guess cause the \
margin is zero :)).</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;">Margins \
default to zero, so unless sbd. sets sth. different on the capacitybar there&#39;s no \
difference. What is the correct one depends on &quot;do i want to have the style \
painting the margin as well&quot;

Since the entire stuff was added about Qt 4.6 or so (with advanced styleShitting \
[sic! ;-] support) it seems expectable that several widgets simply ignore it, esp. \
esp. for the default implementation of QStyleOption (could be to paint the widget \
background of a WA_StyledBackground window etc.)

My impression in this context was that the contentsRect is addressed. *shrug*</pre>
<br />




<p>- Thomas</p>


<br />
<p>On January 10th, 2012, 5:06 p.m., Hugo Pereira Da Costa wrote:</p>






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solid;">  <tr>
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<div>Review request for kdelibs.</div>
<div>By Hugo Pereira Da Costa.</div>


<p style="color: grey;"><i>Updated Jan. 10, 2012, 5:06 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;">fixes the rect passed to paint method so that it matches the widget rect \
and not the event (clip) rect, since the former is what&#39;s expected by widget \
styles.</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;">Fixes bug above. No regression with other styles.</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="http://bugs.kde.org/show_bug.cgi?id=290879">290879</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>kdeui/widgets/kcapacitybar.cpp <span style="color: grey">(6e63c3f)</span></li>

</ul>

<p><a href="http://git.reviewboard.kde.org/r/103669/diff/" style="margin-left: \
3em;">View Diff</a></p>




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