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<h1 class="title">xbeltree.cpp Example File</h1>
<span class="subtitle">dombookmarks/xbeltree.cpp</span>
<!-- $$$dombookmarks/xbeltree.cpp-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp">
<span class="comment">/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** BSD License Usage
** Alternatively, 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 The Qt Company Ltd 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,
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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** $QT_END_LICENSE$
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****************************************************************************/</span>
<span class="preprocessor">#include <QtWidgets></span>
<span class="preprocessor">#include "xbeltree.h"</span>
XbelTree<span class="operator">::</span>XbelTree(<span class="type"><a href="../qtwidgets/qwidget.html">QWidget</a></span> <span class="operator">*</span>parent)
: <span class="type"><a href="../qtwidgets/qtreewidget.html">QTreeWidget</a></span>(parent)
{
<span class="type"><a href="../qtcore/qstringlist.html">QStringList</a></span> labels;
labels <span class="operator"><</span><span class="operator"><</span> tr(<span class="string">"Title"</span>) <span class="operator"><</span><span class="operator"><</span> tr(<span class="string">"Location"</span>);
header()<span class="operator">-</span><span class="operator">></span>setSectionResizeMode(<span class="type"><a href="../qtwidgets/qheaderview.html">QHeaderView</a></span><span class="operator">::</span>Stretch);
setHeaderLabels(labels);
folderIcon<span class="operator">.</span>addPixmap(style()<span class="operator">-</span><span class="operator">></span>standardPixmap(<span class="type"><a href="../qtwidgets/qstyle.html">QStyle</a></span><span class="operator">::</span>SP_DirClosedIcon)<span class="operator">,</span>
<span class="type">QIcon</span><span class="operator">::</span>Normal<span class="operator">,</span> <span class="type">QIcon</span><span class="operator">::</span>Off);
folderIcon<span class="operator">.</span>addPixmap(style()<span class="operator">-</span><span class="operator">></span>standardPixmap(<span class="type"><a href="../qtwidgets/qstyle.html">QStyle</a></span><span class="operator">::</span>SP_DirOpenIcon)<span class="operator">,</span>
<span class="type">QIcon</span><span class="operator">::</span>Normal<span class="operator">,</span> <span class="type">QIcon</span><span class="operator">::</span>On);
bookmarkIcon<span class="operator">.</span>addPixmap(style()<span class="operator">-</span><span class="operator">></span>standardPixmap(<span class="type"><a href="../qtwidgets/qstyle.html">QStyle</a></span><span class="operator">::</span>SP_FileIcon));
}
bool XbelTree<span class="operator">::</span>read(<span class="type"><a href="../qtcore/qiodevice.html">QIODevice</a></span> <span class="operator">*</span>device)
{
<span class="type"><a href="../qtcore/qstring.html">QString</a></span> errorStr;
<span class="type">int</span> errorLine;
<span class="type">int</span> errorColumn;
<span class="keyword">if</span> (<span class="operator">!</span>domDocument<span class="operator">.</span>setContent(device<span class="operator">,</span> <span class="keyword">true</span><span class="operator">,</span> <span class="operator">&</span>errorStr<span class="operator">,</span> <span class="operator">&</span>errorLine<span class="operator">,</span>
<span class="operator">&</span>errorColumn)) {
<span class="type"><a href="../qtwidgets/qmessagebox.html">QMessageBox</a></span><span class="operator">::</span>information(window()<span class="operator">,</span> tr(<span class="string">"DOM Bookmarks"</span>)<span class="operator">,</span>
tr(<span class="string">"Parse error at line %1, column %2:\n%3"</span>)
<span class="operator">.</span>arg(errorLine)
<span class="operator">.</span>arg(errorColumn)
<span class="operator">.</span>arg(errorStr));
<span class="keyword">return</span> <span class="keyword">false</span>;
}
<span class="type"><a href="qdomelement.html">QDomElement</a></span> root <span class="operator">=</span> domDocument<span class="operator">.</span>documentElement();
<span class="keyword">if</span> (root<span class="operator">.</span>tagName() <span class="operator">!</span><span class="operator">=</span> <span class="string">"xbel"</span>) {
<span class="type"><a href="../qtwidgets/qmessagebox.html">QMessageBox</a></span><span class="operator">::</span>information(window()<span class="operator">,</span> tr(<span class="string">"DOM Bookmarks"</span>)<span class="operator">,</span>
tr(<span class="string">"The file is not an XBEL file."</span>));
<span class="keyword">return</span> <span class="keyword">false</span>;
} <span class="keyword">else</span> <span class="keyword">if</span> (root<span class="operator">.</span>hasAttribute(<span class="string">"version"</span>)
<span class="operator">&</span><span class="operator">&</span> root<span class="operator">.</span>attribute(<span class="string">"version"</span>) <span class="operator">!</span><span class="operator">=</span> <span class="string">"1.0"</span>) {
<span class="type"><a href="../qtwidgets/qmessagebox.html">QMessageBox</a></span><span class="operator">::</span>information(window()<span class="operator">,</span> tr(<span class="string">"DOM Bookmarks"</span>)<span class="operator">,</span>
tr(<span class="string">"The file is not an XBEL version 1.0 "</span>
<span class="string">"file."</span>));
<span class="keyword">return</span> <span class="keyword">false</span>;
}
clear();
disconnect(<span class="keyword">this</span><span class="operator">,</span> SIGNAL(itemChanged(<span class="type"><a href="../qtwidgets/qtreewidgetitem.html">QTreeWidgetItem</a></span><span class="operator">*</span><span class="operator">,</span><span class="type">int</span>))<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(updateDomElement(<span class="type"><a href="../qtwidgets/qtreewidgetitem.html">QTreeWidgetItem</a></span><span class="operator">*</span><span class="operator">,</span><span class="type">int</span>)));
<span class="type"><a href="qdomelement.html">QDomElement</a></span> child <span class="operator">=</span> root<span class="operator">.</span>firstChildElement(<span class="string">"folder"</span>);
<span class="keyword">while</span> (<span class="operator">!</span>child<span class="operator">.</span>isNull()) {
parseFolderElement(child);
child <span class="operator">=</span> child<span class="operator">.</span>nextSiblingElement(<span class="string">"folder"</span>);
}
connect(<span class="keyword">this</span><span class="operator">,</span> SIGNAL(itemChanged(<span class="type"><a href="../qtwidgets/qtreewidgetitem.html">QTreeWidgetItem</a></span><span class="operator">*</span><span class="operator">,</span><span class="type">int</span>))<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(updateDomElement(<span class="type"><a href="../qtwidgets/qtreewidgetitem.html">QTreeWidgetItem</a></span><span class="operator">*</span><span class="operator">,</span><span class="type">int</span>)));
<span class="keyword">return</span> <span class="keyword">true</span>;
}
bool XbelTree<span class="operator">::</span>write(<span class="type"><a href="../qtcore/qiodevice.html">QIODevice</a></span> <span class="operator">*</span>device)
{
<span class="keyword">const</span> <span class="type">int</span> IndentSize <span class="operator">=</span> <span class="number">4</span>;
<span class="type"><a href="../qtcore/qtextstream.html">QTextStream</a></span> out(device);
domDocument<span class="operator">.</span>save(out<span class="operator">,</span> IndentSize);
<span class="keyword">return</span> <span class="keyword">true</span>;
}
<span class="type">void</span> XbelTree<span class="operator">::</span>updateDomElement(<span class="type"><a href="../qtwidgets/qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>item<span class="operator">,</span> <span class="type">int</span> column)
{
<span class="type"><a href="qdomelement.html">QDomElement</a></span> element <span class="operator">=</span> domElementForItem<span class="operator">.</span>value(item);
<span class="keyword">if</span> (<span class="operator">!</span>element<span class="operator">.</span>isNull()) {
<span class="keyword">if</span> (column <span class="operator">=</span><span class="operator">=</span> <span class="number">0</span>) {
<span class="type"><a href="qdomelement.html">QDomElement</a></span> oldTitleElement <span class="operator">=</span> element<span class="operator">.</span>firstChildElement(<span class="string">"title"</span>);
<span class="type"><a href="qdomelement.html">QDomElement</a></span> newTitleElement <span class="operator">=</span> domDocument<span class="operator">.</span>createElement(<span class="string">"title"</span>);
<span class="type"><a href="qdomtext.html">QDomText</a></span> newTitleText <span class="operator">=</span> domDocument<span class="operator">.</span>createTextNode(item<span class="operator">-</span><span class="operator">></span>text(<span class="number">0</span>));
newTitleElement<span class="operator">.</span>appendChild(newTitleText);
element<span class="operator">.</span>replaceChild(newTitleElement<span class="operator">,</span> oldTitleElement);
} <span class="keyword">else</span> {
<span class="keyword">if</span> (element<span class="operator">.</span>tagName() <span class="operator">=</span><span class="operator">=</span> <span class="string">"bookmark"</span>)
element<span class="operator">.</span>setAttribute(<span class="string">"href"</span><span class="operator">,</span> item<span class="operator">-</span><span class="operator">></span>text(<span class="number">1</span>));
}
}
}
<span class="type">void</span> XbelTree<span class="operator">::</span>parseFolderElement(<span class="keyword">const</span> <span class="type"><a href="qdomelement.html">QDomElement</a></span> <span class="operator">&</span>element<span class="operator">,</span>
<span class="type"><a href="../qtwidgets/qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>parentItem)
{
<span class="type"><a href="../qtwidgets/qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>item <span class="operator">=</span> createItem(element<span class="operator">,</span> parentItem);
<span class="type"><a href="../qtcore/qstring.html">QString</a></span> title <span class="operator">=</span> element<span class="operator">.</span>firstChildElement(<span class="string">"title"</span>)<span class="operator">.</span>text();
<span class="keyword">if</span> (title<span class="operator">.</span>isEmpty())
title <span class="operator">=</span> <span class="type"><a href="../qtcore/qobject.html">QObject</a></span><span class="operator">::</span>tr(<span class="string">"Folder"</span>);
item<span class="operator">-</span><span class="operator">></span>setFlags(item<span class="operator">-</span><span class="operator">></span>flags() <span class="operator">|</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>ItemIsEditable);
item<span class="operator">-</span><span class="operator">></span>setIcon(<span class="number">0</span><span class="operator">,</span> folderIcon);
item<span class="operator">-</span><span class="operator">></span>setText(<span class="number">0</span><span class="operator">,</span> title);
bool folded <span class="operator">=</span> (element<span class="operator">.</span>attribute(<span class="string">"folded"</span>) <span class="operator">!</span><span class="operator">=</span> <span class="string">"no"</span>);
setItemExpanded(item<span class="operator">,</span> <span class="operator">!</span>folded);
<span class="type"><a href="qdomelement.html">QDomElement</a></span> child <span class="operator">=</span> element<span class="operator">.</span>firstChildElement();
<span class="keyword">while</span> (<span class="operator">!</span>child<span class="operator">.</span>isNull()) {
<span class="keyword">if</span> (child<span class="operator">.</span>tagName() <span class="operator">=</span><span class="operator">=</span> <span class="string">"folder"</span>) {
parseFolderElement(child<span class="operator">,</span> item);
} <span class="keyword">else</span> <span class="keyword">if</span> (child<span class="operator">.</span>tagName() <span class="operator">=</span><span class="operator">=</span> <span class="string">"bookmark"</span>) {
<span class="type"><a href="../qtwidgets/qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>childItem <span class="operator">=</span> createItem(child<span class="operator">,</span> item);
<span class="type"><a href="../qtcore/qstring.html">QString</a></span> title <span class="operator">=</span> child<span class="operator">.</span>firstChildElement(<span class="string">"title"</span>)<span class="operator">.</span>text();
<span class="keyword">if</span> (title<span class="operator">.</span>isEmpty())
title <span class="operator">=</span> <span class="type"><a href="../qtcore/qobject.html">QObject</a></span><span class="operator">::</span>tr(<span class="string">"Folder"</span>);
childItem<span class="operator">-</span><span class="operator">></span>setFlags(item<span class="operator">-</span><span class="operator">></span>flags() <span class="operator">|</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>ItemIsEditable);
childItem<span class="operator">-</span><span class="operator">></span>setIcon(<span class="number">0</span><span class="operator">,</span> bookmarkIcon);
childItem<span class="operator">-</span><span class="operator">></span>setText(<span class="number">0</span><span class="operator">,</span> title);
childItem<span class="operator">-</span><span class="operator">></span>setText(<span class="number">1</span><span class="operator">,</span> child<span class="operator">.</span>attribute(<span class="string">"href"</span>));
} <span class="keyword">else</span> <span class="keyword">if</span> (child<span class="operator">.</span>tagName() <span class="operator">=</span><span class="operator">=</span> <span class="string">"separator"</span>) {
<span class="type"><a href="../qtwidgets/qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>childItem <span class="operator">=</span> createItem(child<span class="operator">,</span> item);
childItem<span class="operator">-</span><span class="operator">></span>setFlags(item<span class="operator">-</span><span class="operator">></span>flags() <span class="operator">&</span> <span class="operator">~</span>(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>ItemIsSelectable <span class="operator">|</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>ItemIsEditable));
childItem<span class="operator">-</span><span class="operator">></span>setText(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span>(<span class="number">30</span><span class="operator">,</span> <span class="number">0xB7</span>));
}
child <span class="operator">=</span> child<span class="operator">.</span>nextSiblingElement();
}
}
<span class="type"><a href="../qtwidgets/qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>XbelTree<span class="operator">::</span>createItem(<span class="keyword">const</span> <span class="type"><a href="qdomelement.html">QDomElement</a></span> <span class="operator">&</span>element<span class="operator">,</span>
<span class="type"><a href="../qtwidgets/qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>parentItem)
{
<span class="type"><a href="../qtwidgets/qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>item;
<span class="keyword">if</span> (parentItem) {
item <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtwidgets/qtreewidgetitem.html">QTreeWidgetItem</a></span>(parentItem);
} <span class="keyword">else</span> {
item <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtwidgets/qtreewidgetitem.html">QTreeWidgetItem</a></span>(<span class="keyword">this</span>);
}
domElementForItem<span class="operator">.</span>insert(item<span class="operator">,</span> element);
<span class="keyword">return</span> item;
}
</pre>
</div>
<!-- @@@dombookmarks/xbeltree.cpp -->
</div>
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Documentation contributions included herein are the copyrights of
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distrib
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Mageia
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6
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armv5tl
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media
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core-updates
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4724
