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This is an automatically generated e-mail. To reply, visit:
<a href="http://git.reviewboard.kde.org/r/100838/">http://git.reviewboard.kde.org/r/100838/</a>
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<p style="margin-top: 0;">On March 29th, 2011, 5:06 p.m., <b>Dario Freddi</b> wrote:</p>
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<a href="http://git.reviewboard.kde.org/r/100838/diff/4/?file=12726#file12726line102" style="color: black; font-weight: bold; text-decoration: underline;">account-button.cpp</a>
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(Diff revision 4)
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<td colspan="2"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
<td colspan="2"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">AccountButton::AccountButton(const Tp::AccountPtr &account, QWidget* parent)</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">QPixmap</span> <span class="n">pixmap</span> <span class="o">=</span> <span class="n">icon</span><span class="p">().</span><span class="n">pixmap</span><span class="p">(</span><span class="mi">32</span><span class="p">,</span> <span class="mi">32</span><span class="p">);</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">QPainter</span> <span class="n">painter</span><span class="p">(</span><span class="o">&</span><span class="n">pixmap</span><span class="p">);</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">KIcon</span><span class="p">(</span><span class="n">a</span><span class="o">-></span><span class="n">icon</span><span class="p">()).</span><span class="n">paint</span><span class="p">(</span><span class="o">&</span><span class="n">painter</span><span class="p">,</span> <span class="mi">15</span><span class="p">,</span> <span class="mi">15</span><span class="p">,</span> <span class="mi">16</span><span class="p">,</span> <span class="mi">16</span><span class="p">);</span></pre></td>
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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;">It is not very clear to me what you are doing here, but this routine can be extremely slow. Can you please tell me what you are trying to achieve?
I also see there is more than one occurrence of that, so this should indeed optimized if possible.</pre>
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<p>On March 30th, 2011, 9:53 a.m., <b>Martin Klapetek</b> wrote:</p>
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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;">This paints a small overlay over the account icon. It paints the presence icon (online, offline etc) and I think this is a bit of the original code. What would be a better way to achieve painting a small emblem over an icon?</pre>
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<p>On March 30th, 2011, 12:10 p.m., <b>Dario Freddi</b> wrote:</p>
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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;">There is a custom KIcon constructor (please see http://api.kde.org/4.x-api/kdelibs-apidocs/kdeui/html/classKIcon.html#a6057e88b03b32ca70af2da295d626408 ) which does the dirty job itself when it comes to overlays - it is surely not much more optimized than this, but when QIcon will support overlays natively, we'll get the speed bump for free. I advise you to switch to this method, it will also give more clarity to the code.</pre>
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<p>On March 30th, 2011, 12:20 p.m., <b>Dario Freddi</b> wrote:</p>
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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;">However, I also see that you are trying to create a big overlay, so the method I suggested might not work (try it anyway though). A possible way to optimize this routine then can be storing the pixmap (or even the painter) somewhere to prevent at least one painting cycle to be performed each time the overlay is painted - this way the same painter will be used to paint all the icons, which is not really the most lenghty part, but it's still something.</pre>
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<p>On March 30th, 2011, 12:37 p.m., <b>Dario Freddi</b> wrote:</p>
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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;">Last time I am spamming you: thinking about it twice, that would do.
class ... {
...
private:
QPixmap m_errorPixmap;
}
//
Constructor::Constructor(Bla *bla) {
// Load icons and stuff...
m_errorPixmap = KIconLoader::global->loadIcon("dialog-error", KIconLoader::NoGroup, 16);
// More stuff
}
Class::yourMethod() {
// Your routine, which becomes:
QPixmap pixmap = icon().pixmap(32, 32);
QPainter painter(&pixmap);
painter->drawPixmap(15, 15, 16, 16);
}
Unfortunately we can cache only the overlayed pixmap - the other one will need to be loaded and drawn every time. If the routine is used VERY frequently, I advise you to load the pixmap through KIconLoader instead of getting it straight from the icon and see how it goes - IIRC, KIconLoader performs slightly better than straight KIcon conversion when talking about pixmap, but this is really dependent on how many times you are calling such a routine and how it is critical for it to be fast. Surely such a modification should give you a good speed bump: now you are loading one pixmap less per cycle, which is quite an expensive operation. Ideally, you should never load pixmaps in the drawing phase, but it looks like you can't avoid loading at least one in this case.</pre>
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<p>On March 30th, 2011, 12:39 p.m., <b>Dario Freddi</b> wrote:</p>
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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;">I obviously fail at copying&pasting: of course I meant
painter->drawPixmap(15, 15, m_errorPixmap);</pre>
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<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;">Thanks for the tips :) Just a small clarification - the overlay changes everytime the presence changes. Also, because of that, there are several overlay pixmaps (one for each presence type + the error one), so we need to cache more pixmaps (no problem really). Next thing is the speed - it's not that critical to be fast. Imagine the connection procedure - it is connecting and once it is connected, the overlay is painted. But sure, faster (in terms of less calls) is better. I'll try to switch it to the KIconLoader. And the last - we could also cache the account icon pixmap, because that one does not change, and then use this instead of icon().pixmap() calls. </pre>
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<p>- Martin</p>
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<p>On March 23rd, 2011, 9:32 p.m., Martin Klapetek wrote:</p>
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<div>Review request for Telepathy.</div>
<div>By Martin Klapetek.</div>
<p style="color: grey;"><i>Updated March 23, 2011, 9:32 p.m.</i></p>
<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
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<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;">This is the work that begun in my clone repo and has matured enough now to be merged back to 'upstream', where the work should continue now.</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </h1>
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<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;">We did a lot of thourough testing on #kde-telepathy, also some people emailed their reports which all has been fixed.</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>CMakeLists.txt <span style="color: grey">(2c62ea10556cdba38d1bca0fe63603df97414336)</span></li>
<li>account-button.h <span style="color: grey">(PRE-CREATION)</span></li>
<li>account-button.cpp <span style="color: grey">(PRE-CREATION)</span></li>
<li>account-filter-model.h <span style="color: grey">(PRE-CREATION)</span></li>
<li>account-filter-model.cpp <span style="color: grey">(PRE-CREATION)</span></li>
<li>accounts-model-item.h <span style="color: grey">(PRE-CREATION)</span></li>
<li>accounts-model-item.cpp <span style="color: grey">(PRE-CREATION)</span></li>
<li>accounts-model.h <span style="color: grey">(PRE-CREATION)</span></li>
<li>accounts-model.cpp <span style="color: grey">(PRE-CREATION)</span></li>
<li>contact-delegate-overlay.h <span style="color: grey">(PRE-CREATION)</span></li>
<li>contact-delegate-overlay.cpp <span style="color: grey">(PRE-CREATION)</span></li>
<li>contact-delegate.h <span style="color: grey">(PRE-CREATION)</span></li>
<li>contact-delegate.cpp <span style="color: grey">(PRE-CREATION)</span></li>
<li>contact-model-item.h <span style="color: grey">(PRE-CREATION)</span></li>
<li>contact-model-item.cpp <span style="color: grey">(PRE-CREATION)</span></li>
<li>contact-overlays.h <span style="color: grey">(PRE-CREATION)</span></li>
<li>contact-overlays.cpp <span style="color: grey">(PRE-CREATION)</span></li>
<li>contact-view-hover-button.h <span style="color: grey">(PRE-CREATION)</span></li>
<li>contact-view-hover-button.cpp <span style="color: grey">(PRE-CREATION)</span></li>
<li>filter-bar.h <span style="color: grey">(PRE-CREATION)</span></li>
<li>filter-bar.cpp <span style="color: grey">(PRE-CREATION)</span></li>
<li>main-widget.h <span style="color: grey">(aed6f7c8336321bc8a6ffb3b9af6b1d493f85790)</span></li>
<li>main-widget.cpp <span style="color: grey">(6146b62eec17b54be63b594200613931673ac5fe)</span></li>
<li>main-widget.ui <span style="color: grey">(5b0d5aaaf3a4e2f49eb030b98b15fcae3a86170c)</span></li>
<li>main.cpp <span style="color: grey">(bba0e4175e8853afe603f26ea4707f4974192d0f)</span></li>
<li>ontologies/CMakeLists.txt <span style="color: grey">(3e0bbe8c634908f689dcd360409aeddcc6fc0d23)</span></li>
<li>tree-node.h <span style="color: grey">(PRE-CREATION)</span></li>
<li>tree-node.cpp <span style="color: grey">(PRE-CREATION)</span></li>
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<p><a href="http://git.reviewboard.kde.org/r/100838/diff/" style="margin-left: 3em;">View Diff</a></p>
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