<html>
<body>
<div style="font-family: Verdana, Arial, Helvetica, Sans-Serif;">
<table bgcolor="#f9f3c9" width="100%" cellpadding="8" style="border: 1px #c9c399 solid;">
<tr>
<td>
This is an automatically generated e-mail. To reply, visit:
<a href="http://svn.reviewboard.kde.org/r/6313/">http://svn.reviewboard.kde.org/r/6313/</a>
</td>
</tr>
</table>
<br />
<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Very Good work, this patch makes trail working already!
I commented some nitpicks to make the code even easier to read/understand/maintain.</pre>
<br />
<div>
<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://svn.reviewboard.kde.org/r/6313/diff/1/?file=44056#file44056line120" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/KDE/kdeedu/marble/src/plugins/render/positionmarker/PositionMarker.h</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; ">class PositionMarker : public RenderPlugin</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">120</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">QRectF</span> <span class="n">m_trail</span><span class="p">[</span><span class="mi">5</span><span class="p">];</span></pre></td>
</tr>
</tbody>
</table>
<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">We try to avoid arrays like this. This looks quite C-ish.
The easy solution is to use a QList or a QVector instead of a table, and to define m_numTrailPoints as const.</pre>
</div>
<br />
<div>
<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://svn.reviewboard.kde.org/r/6313/diff/1/?file=44057#file44057line54" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/KDE/kdeedu/marble/src/plugins/render/positionmarker/PositionMarker.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; ">PositionMarker::PositionMarker ()</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">54</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">for</span><span class="p">(</span> <span class="kt">int</span> <span class="n">i</span> <span class="o">=</span> <span class="n">m_numTrailPoints</span> <span class="o">-</span> <span class="mi">1</span><span class="p">;</span> <span class="n">i</span> <span class="o">>=</span> <span class="mi">0</span><span class="p">;</span> <span class="o">--</span><span class="n">i</span> <span class="p">)</span> <span class="p">{</span></pre></td>
</tr>
</tbody>
</table>
<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">The loop goes backwards, to set increasing size for bigger indexes of the array.
Is there not a simpler way to do the same?
(It's rather unusual to iterate tables backwards, unless there is a very good reason to. I think the code needs to present the list of past points as an increasing list.)
Also comments to indicate the intent would be welcome.</pre>
</div>
<br />
<div>
<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://svn.reviewboard.kde.org/r/6313/diff/1/?file=44057#file44057line236" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/KDE/kdeedu/marble/src/plugins/render/positionmarker/PositionMarker.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 PositionMarker::update()</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">236</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">m_trail</span><span class="p">[</span><span class="n">m_numTrailPoints</span> <span class="o">-</span> <span class="mi">1</span><span class="p">].</span><span class="n">moveTopLeft</span><span class="p">(</span> <span class="n">m_lastTrailPoint</span> <span class="p">);</span></pre></td>
</tr>
</tbody>
</table>
<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Why not add <= in previous loop and remove this line?</pre>
</div>
<br />
<div>
<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://svn.reviewboard.kde.org/r/6313/diff/1/?file=44057#file44057line237" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/KDE/kdeedu/marble/src/plugins/render/positionmarker/PositionMarker.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 PositionMarker::update()</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">237</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">m_lastTrailPoint</span><span class="p">.</span><span class="n">setX</span><span class="p">(</span> <span class="n">m_currentPosition</span><span class="p">.</span><span class="n">longitude</span><span class="p">()</span> <span class="p">);</span></pre></td>
</tr>
</tbody>
</table>
<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Is there a specific interest to keep m_lastTrailPoint outside of this m_trail array?</pre>
</div>
<br />
<div>
<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://svn.reviewboard.kde.org/r/6313/diff/1/?file=44057#file44057line284" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/KDE/kdeedu/marble/src/plugins/render/positionmarker/PositionMarker.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 PositionMarker::update()</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">284</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">for</span><span class="p">(</span> <span class="kt">int</span> <span class="n">i</span> <span class="o">=</span> <span class="n">m_numTrailPoints</span> <span class="o">-</span> <span class="mi">1</span><span class="p">,</span> <span class="n">j</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="n">i</span> <span class="o">>=</span> <span class="mi">0</span> <span class="o">&&</span> <span class="n">j</span> <span class="o"><</span> <span class="n">m_visibleTrailPoints</span><span class="p">;</span> <span class="o">--</span><span class="n">i</span><span class="p">,</span> <span class="o">++</span><span class="n">j</span> <span class="p">)</span> <span class="p">{</span></pre></td>
</tr>
</tbody>
</table>
<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">if m_visibleTrailPoints is garanteed to be < m_numTrailPoints, could this loop be simplified, only using one counter?</pre>
</div>
<br />
<div>
<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://svn.reviewboard.kde.org/r/6313/diff/1/?file=44057#file44057line285" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/KDE/kdeedu/marble/src/plugins/render/positionmarker/PositionMarker.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 PositionMarker::update()</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">285</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">m_viewport</span><span class="o">-></span><span class="n">currentProjection</span><span class="p">()</span><span class="o">-></span><span class="n">screenCoordinates</span><span class="p">(</span> <span class="n">GeoDataCoordinates</span><span class="p">(</span> <span class="n">m_trail</span><span class="p">[</span><span class="n">i</span><span class="p">].</span><span class="n">topLeft</span><span class="p">().</span><span class="n">x</span><span class="p">(),</span> <span class="n">m_trail</span><span class="p">[</span><span class="n">i</span><span class="p">].</span><span class="n">topLeft</span><span class="p">().</span><span class="n">y</span><span class="p">()</span> <span class="p">),</span></pre></td>
</tr>
</tbody>
</table>
<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Looks like m_trail should be an array of GeoDataCoordinates then, or better as said above, a QList or QVector.</pre>
</div>
<br />
<div>
<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://svn.reviewboard.kde.org/r/6313/diff/1/?file=44057#file44057line295" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/KDE/kdeedu/marble/src/plugins/render/positionmarker/PositionMarker.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 PositionMarker::update()</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">295</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">painter</span><span class="o">-></span><span class="n">setOpacity</span><span class="p">(</span> <span class="mf">1.0</span> <span class="p">);</span></pre></td>
</tr>
</tbody>
</table>
<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">sounds like you would want to use the painter state save and restore, to be sure it remains unaffected for next paintings?</pre>
</div>
<br />
<p>- Thibaut</p>
<br />
<p>On January 9th, 2011, 9:01 p.m., Daniel Marth wrote:</p>
<table bgcolor="#fefadf" width="100%" cellspacing="0" cellpadding="8" style="background-image: url('http://svn.reviewboard.kde.orgrb/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 marble.</div>
<div>By Daniel Marth.</div>
<p style="color: grey;"><i>Updated Jan. 9, 2011, 9:01 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;">Adds a trail to the position marker.
GCI-task: http://www.google-melange.com/gci/task/show/google/gci2010/kde/t129364719879</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/kdeedu/marble/src/plugins/render/positionmarker/PositionMarkerConfigWidget.ui <span style="color: grey">(1213205)</span></li>
<li>/trunk/KDE/kdeedu/marble/src/plugins/render/positionmarker/PositionMarker.h <span style="color: grey">(1213205)</span></li>
<li>/trunk/KDE/kdeedu/marble/src/plugins/render/positionmarker/PositionMarker.cpp <span style="color: grey">(1213205)</span></li>
</ul>
<p><a href="http://svn.reviewboard.kde.org/r/6313/diff/" style="margin-left: 3em;">View Diff</a></p>
</td>
</tr>
</table>
</div>
</body>
</html>