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This is an automatically generated e-mail. To reply, visit:
<a href="https://git.reviewboard.kde.org/r/126466/">https://git.reviewboard.kde.org/r/126466/</a>
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<p style="margin-top: 0;">On December 22nd, 2015, 11:59 a.m. UTC, <b>David Edmundson</b> wrote:</p>
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<a href="https://git.reviewboard.kde.org/r/126466/diff/1/?file=425194#file425194line406" style="color: black; font-weight: bold; text-decoration: underline;">src/declarativeimports/core/iconitem.cpp</a>
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(Diff revision 1)
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">void IconItem::geometryChanged(const QRectF &newGeometry,</pre></td>
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">if</span> <span class="p">(</span><span class="o"><span class="hl">!</span></span><span class="n"><span class="hl">m_loadPixmapTimer</span></span><span class="p"><span class="hl">.</span></span><span class="n"><span class="hl">isActive</span></span><span class="p"><span class="hl">()</span></span><span class="hl"> </span><span class="o"><span class="hl">&&</span></span><span class="hl"> </span><span class="n">isComponentComplete</span><span class="p">())</span> <span class="p">{</span></pre></td>
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">if</span> <span class="p">(</span><span class="n">isComponentComplete</span><span class="p">())</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;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">One of the (albeit extremely flimsy) arguments to a timer is changing both the width and height means we do a loadPixmap twice.</p>
<p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">Could we move:
const int iconSize = Units::roundToIconSize(qMin(boundingRect().size().width(), boundingRect().size().height()));</p>
<p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">to be a member var outside loadPixmap and only call loadPixmap if that acutally changes?</p></pre>
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<p>On December 22nd, 2015, 12:33 p.m. UTC, <b>Marco Martin</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;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">yes, the timer was put there to avoid two loadpixmap in geometry changes.
the change you propose (David) would indeed avoid many of those duplicate kloadPixmap, especially during scalid up.
perhaps there would still be some problem while scalig down?
ie the icon is 40x40
width gets set to 28 -> 28x28 pixmap loaded
height gets set to 16 -> 16x16 pixmap gets loaded immediately after</p></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;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">we could move the actual loading into update() ?</p>
<p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">By then all QML processing for that frame has finished.</p></pre>
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<p>- David</p>
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<p>On December 22nd, 2015, 3:17 a.m. UTC, Eike Hein wrote:</p>
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<div>Review request for Plasma and David Edmundson.</div>
<div>By Eike Hein.</div>
<p style="color: grey;"><i>Updated Dec. 22, 2015, 3:17 a.m.</i></p>
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<b style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Bugs: </b>
<a href="http://bugs.kde.org/show_bug.cgi?id=345545">345545</a>
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<b style="color: #575012; font-size: 10pt;">Repository: </b>
plasma-framework
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<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;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">This timer seems to exist purely to delay loading the pixmap for the purpose of "hey, maybe it will work later ..." when it's not actually needed thanks to QQmlParserStatus. Dropping it brings speed up to par with QIconItem and fixes various icon flicker around Plasma, in particular in the Task Manager: When swapping out a launcher delegate for a task delegate, or when swapping out delegates during virtual desktop switches.</p></pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>src/declarativeimports/core/iconitem.cpp <span style="color: grey">(e260487)</span></li>
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<p><a href="https://git.reviewboard.kde.org/r/126466/diff/" style="margin-left: 3em;">View Diff</a></p>
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