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<h1 class="title">csvview.cpp Example File</h1>
<span class="small-subtitle">webkit/simplewebplugin/csvview.cpp</span>
<!-- $$$webkit/simplewebplugin/csvview.cpp-description -->
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<pre class="cpp"> <span class="comment">/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
** of its contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/</span>
<span class="preprocessor">#include <QtGui></span>
<span class="preprocessor">#include <QtNetwork></span>
<span class="preprocessor">#include "csvview.h"</span>
CSVView<span class="operator">::</span>CSVView(<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&</span>mimeType<span class="operator">,</span> <span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>parent)
: <span class="type"><a href="qtableview.html">QTableView</a></span>(parent)
{
<span class="keyword">this</span><span class="operator">-</span><span class="operator">></span>mimeType <span class="operator">=</span> mimeType;
}
<span class="type">void</span> CSVView<span class="operator">::</span>updateModel()
{
<span class="type"><a href="qnetworkreply.html">QNetworkReply</a></span> <span class="operator">*</span>reply <span class="operator">=</span> <span class="keyword">static_cast</span><span class="operator"><</span><span class="type"><a href="qnetworkreply.html">QNetworkReply</a></span> <span class="operator">*</span><span class="operator">></span>(sender());
<span class="keyword">if</span> (reply<span class="operator">-</span><span class="operator">></span>error() <span class="operator">!</span><span class="operator">=</span> <span class="type"><a href="qnetworkreply.html">QNetworkReply</a></span><span class="operator">::</span>NoError)
<span class="keyword">return</span>;
<span class="type">bool</span> hasHeader <span class="operator">=</span> <span class="keyword">false</span>;
<span class="type"><a href="qstring.html">QString</a></span> charset <span class="operator">=</span> <span class="string">"latin1"</span>;
foreach (<span class="type"><a href="qstring.html">QString</a></span> piece<span class="operator">,</span> mimeType<span class="operator">.</span>split(<span class="string">";"</span>)) {
piece <span class="operator">=</span> piece<span class="operator">.</span>trimmed();
<span class="keyword">if</span> (piece<span class="operator">.</span>contains(<span class="string">"="</span>)) {
<span class="type">int</span> index <span class="operator">=</span> piece<span class="operator">.</span>indexOf(<span class="string">"="</span>);
<span class="type"><a href="qstring.html">QString</a></span> left <span class="operator">=</span> piece<span class="operator">.</span>left(index)<span class="operator">.</span>trimmed();
<span class="type"><a href="qstring.html">QString</a></span> right <span class="operator">=</span> piece<span class="operator">.</span>mid(index <span class="operator">+</span> <span class="number">1</span>)<span class="operator">.</span>trimmed();
<span class="keyword">if</span> (left <span class="operator">=</span><span class="operator">=</span> <span class="string">"header"</span>)
hasHeader <span class="operator">=</span> (right <span class="operator">=</span><span class="operator">=</span> <span class="string">"present"</span>);
<span class="keyword">else</span> <span class="keyword">if</span> (left <span class="operator">=</span><span class="operator">=</span> <span class="string">"charset"</span>)
charset <span class="operator">=</span> right;
}
}
<span class="type"><a href="qtextstream.html">QTextStream</a></span> stream(reply);
stream<span class="operator">.</span>setCodec(<span class="type"><a href="qtextcodec.html">QTextCodec</a></span><span class="operator">::</span>codecForName(charset<span class="operator">.</span>toLatin1()));
<span class="type"><a href="qstandarditemmodel.html">QStandardItemModel</a></span> <span class="operator">*</span>model <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qstandarditemmodel.html">QStandardItemModel</a></span>(<span class="keyword">this</span>);
<span class="type"><a href="qlist.html">QList</a></span><span class="operator"><</span><span class="type"><a href="qstandarditem.html">QStandardItem</a></span> <span class="operator">*</span><span class="operator">></span> items;
<span class="type">bool</span> firstLine <span class="operator">=</span> hasHeader;
<span class="type">bool</span> wasQuote <span class="operator">=</span> <span class="keyword">false</span>;
<span class="type">bool</span> wasCR <span class="operator">=</span> <span class="keyword">false</span>;
<span class="type">bool</span> quoted <span class="operator">=</span> <span class="keyword">false</span>;
<span class="type"><a href="qstring.html">QString</a></span> text;
<span class="keyword">while</span> (<span class="operator">!</span>stream<span class="operator">.</span>atEnd()) {
<span class="type"><a href="qstring.html">QString</a></span> ch <span class="operator">=</span> stream<span class="operator">.</span>read(<span class="number">1</span>);
<span class="keyword">if</span> (wasQuote) {
<span class="keyword">if</span> (ch <span class="operator">=</span><span class="operator">=</span> <span class="string">"\""</span>) {
<span class="keyword">if</span> (quoted) {
text <span class="operator">+</span><span class="operator">=</span> ch; <span class="comment">// quoted "" are inserted as "</span>
wasQuote <span class="operator">=</span> <span class="keyword">false</span>; <span class="comment">// no quotes are pending</span>
} <span class="keyword">else</span> {
quoted <span class="operator">=</span> <span class="keyword">true</span>; <span class="comment">// unquoted "" starts quoting</span>
wasQuote <span class="operator">=</span> <span class="keyword">true</span>; <span class="comment">// with a pending quote</span>
}
<span class="keyword">continue</span>; <span class="comment">// process the next character</span>
} <span class="keyword">else</span> {
quoted <span class="operator">=</span> <span class="operator">!</span>quoted; <span class="comment">// process the pending quote</span>
wasQuote <span class="operator">=</span> <span class="keyword">false</span>; <span class="comment">// no quotes are pending</span>
} <span class="comment">// process the current character</span>
} <span class="keyword">else</span> <span class="keyword">if</span> (wasCR) {
wasCR <span class="operator">=</span> <span class="keyword">false</span>;
<span class="keyword">if</span> (ch <span class="operator">=</span><span class="operator">=</span> <span class="string">"\n"</span>) { <span class="comment">// CR LF represents the end of a row</span>
<span class="keyword">if</span> (<span class="operator">!</span>text<span class="operator">.</span>isEmpty())
items<span class="operator">.</span>append(<span class="keyword">new</span> <span class="type"><a href="qstandarditem.html">QStandardItem</a></span>(<span class="type"><a href="qstring.html">QString</a></span>(text)));
addRow(firstLine<span class="operator">,</span> model<span class="operator">,</span> items);
items<span class="operator">.</span>clear();
text <span class="operator">=</span> <span class="string">""</span>;
firstLine <span class="operator">=</span> <span class="keyword">false</span>;
<span class="keyword">continue</span>; <span class="comment">// process the next character</span>
} <span class="keyword">else</span>
text <span class="operator">+</span><span class="operator">=</span> <span class="string">"\r"</span>; <span class="comment">// CR on its own is inserted</span>
} <span class="comment">// process the current character</span>
<span class="comment">// wasQuote is never true here.</span>
<span class="comment">// wasCR is never true here.</span>
<span class="keyword">if</span> (ch <span class="operator">=</span><span class="operator">=</span> <span class="string">"\""</span>)
wasQuote <span class="operator">=</span> <span class="keyword">true</span>; <span class="comment">// handle the pending quote later</span>
<span class="keyword">else</span> <span class="keyword">if</span> (ch <span class="operator">=</span><span class="operator">=</span> <span class="string">","</span>) {
<span class="keyword">if</span> (quoted)
text <span class="operator">+</span><span class="operator">=</span> ch;
<span class="keyword">else</span> {
items<span class="operator">.</span>append(<span class="keyword">new</span> <span class="type"><a href="qstandarditem.html">QStandardItem</a></span>(<span class="type"><a href="qstring.html">QString</a></span>(text)));
text <span class="operator">=</span> <span class="string">""</span>;
}
}
<span class="keyword">else</span> <span class="keyword">if</span> (ch <span class="operator">=</span><span class="operator">=</span> <span class="string">"\r"</span>) {
<span class="keyword">if</span> (<span class="operator">!</span>quoted)
wasCR <span class="operator">=</span> <span class="keyword">true</span>;
<span class="keyword">else</span>
text <span class="operator">+</span><span class="operator">=</span> ch;
}
<span class="keyword">else</span> <span class="keyword">if</span> (ch <span class="operator">=</span><span class="operator">=</span> <span class="string">"\n"</span>)
text <span class="operator">+</span><span class="operator">=</span> ch;
<span class="keyword">else</span>
text <span class="operator">+</span><span class="operator">=</span> ch;
}
<span class="keyword">if</span> (items<span class="operator">.</span>count() <span class="operator">></span> <span class="number">0</span>)
addRow(firstLine<span class="operator">,</span> model<span class="operator">,</span> items);
reply<span class="operator">-</span><span class="operator">></span>close();
setModel(model);
resizeColumnsToContents();
horizontalHeader()<span class="operator">-</span><span class="operator">></span>setStretchLastSection(<span class="keyword">true</span>);
}
<span class="type">void</span> CSVView<span class="operator">::</span>addRow(<span class="type">bool</span> firstLine<span class="operator">,</span> <span class="type"><a href="qstandarditemmodel.html">QStandardItemModel</a></span> <span class="operator">*</span>model<span class="operator">,</span>
<span class="keyword">const</span> <span class="type"><a href="qlist.html">QList</a></span><span class="operator"><</span><span class="type"><a href="qstandarditem.html">QStandardItem</a></span> <span class="operator">*</span><span class="operator">></span> <span class="operator">&</span>items)
{
<span class="keyword">if</span> (firstLine) {
<span class="keyword">for</span> (<span class="type">int</span> j <span class="operator">=</span> <span class="number">0</span>; j <span class="operator"><</span> items<span class="operator">.</span>count(); <span class="operator">+</span><span class="operator">+</span>j)
model<span class="operator">-</span><span class="operator">></span>setHorizontalHeaderItem(j<span class="operator">,</span> items<span class="operator">[</span>j<span class="operator">]</span>);
} <span class="keyword">else</span>
model<span class="operator">-</span><span class="operator">></span>appendRow(items);
}</pre>
</div>
<!-- @@@webkit/simplewebplugin/csvview.cpp -->
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