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<title>Qt 4.8: BrowserView.cpp Example File (demos/embedded/anomaly/src/BrowserView.cpp)</title>
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<h1 class="title">BrowserView.cpp Example File</h1>
<span class="small-subtitle">demos/embedded/anomaly/src/BrowserView.cpp</span>
<!-- $$$demos/embedded/anomaly/src/BrowserView.cpp-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp"> <span class="comment">/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the demos of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
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** $QT_END_LICENSE$
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****************************************************************************/</span>
<span class="preprocessor">#include "BrowserView.h"</span>
<span class="preprocessor">#include <QtGui></span>
<span class="preprocessor">#include <QtNetwork></span>
<span class="preprocessor">#include <QtWebKit></span>
<span class="preprocessor">#include "ControlStrip.h"</span>
<span class="preprocessor">#include "TitleBar.h"</span>
<span class="preprocessor">#include "flickcharm.h"</span>
<span class="preprocessor">#include "webview.h"</span>
<span class="preprocessor">#include "ZoomStrip.h"</span>
BrowserView<span class="operator">::</span>BrowserView(<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>parent)
: <span class="type"><a href="qwidget.html">QWidget</a></span>(parent)
<span class="operator">,</span> m_titleBar(<span class="number">0</span>)
<span class="operator">,</span> m_webView(<span class="number">0</span>)
<span class="operator">,</span> m_progress(<span class="number">0</span>)
<span class="operator">,</span> m_currentZoom(<span class="number">100</span>)
{
m_titleBar <span class="operator">=</span> <span class="keyword">new</span> TitleBar(<span class="keyword">this</span>);
m_webView <span class="operator">=</span> <span class="keyword">new</span> WebView(<span class="keyword">this</span>);
m_zoomStrip <span class="operator">=</span> <span class="keyword">new</span> ZoomStrip(<span class="keyword">this</span>);
m_controlStrip <span class="operator">=</span> <span class="keyword">new</span> ControlStrip(<span class="keyword">this</span>);
m_zoomLevels <span class="operator"><</span><span class="operator"><</span> <span class="number">30</span> <span class="operator"><</span><span class="operator"><</span> <span class="number">50</span> <span class="operator"><</span><span class="operator"><</span> <span class="number">67</span> <span class="operator"><</span><span class="operator"><</span> <span class="number">80</span> <span class="operator"><</span><span class="operator"><</span> <span class="number">90</span>;
m_zoomLevels <span class="operator"><</span><span class="operator"><</span> <span class="number">100</span>;
m_zoomLevels <span class="operator"><</span><span class="operator"><</span> <span class="number">110</span> <span class="operator"><</span><span class="operator"><</span> <span class="number">120</span> <span class="operator"><</span><span class="operator"><</span> <span class="number">133</span> <span class="operator"><</span><span class="operator"><</span> <span class="number">150</span> <span class="operator"><</span><span class="operator"><</span> <span class="number">170</span> <span class="operator"><</span><span class="operator"><</span> <span class="number">200</span> <span class="operator"><</span><span class="operator"><</span> <span class="number">240</span> <span class="operator"><</span><span class="operator"><</span> <span class="number">300</span>;
<span class="type"><a href="qnetworkconfigurationmanager.html">QNetworkConfigurationManager</a></span> manager;
<span class="keyword">if</span> (manager<span class="operator">.</span>capabilities() <span class="operator">&</span> <span class="type"><a href="qnetworkconfigurationmanager.html">QNetworkConfigurationManager</a></span><span class="operator">::</span>NetworkSessionRequired) {
<span class="comment">// Get saved network configuration</span>
<span class="type"><a href="qsettings.html">QSettings</a></span> settings(<span class="type"><a href="qsettings.html">QSettings</a></span><span class="operator">::</span>UserScope<span class="operator">,</span> QLatin1String(<span class="string">"Trolltech"</span>));
settings<span class="operator">.</span>beginGroup(QLatin1String(<span class="string">"QtNetwork"</span>));
<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> id <span class="operator">=</span>
settings<span class="operator">.</span>value(QLatin1String(<span class="string">"DefaultNetworkConfiguration"</span>))<span class="operator">.</span>toString();
settings<span class="operator">.</span>endGroup();
<span class="comment">// If the saved network configuration is not currently discovered use the system</span>
<span class="comment">// default</span>
<span class="type"><a href="qnetworkconfiguration.html">QNetworkConfiguration</a></span> config <span class="operator">=</span> manager<span class="operator">.</span>configurationFromIdentifier(id);
<span class="keyword">if</span> ((config<span class="operator">.</span>state() <span class="operator">&</span> <span class="type"><a href="qnetworkconfiguration.html">QNetworkConfiguration</a></span><span class="operator">::</span>Discovered) <span class="operator">!</span><span class="operator">=</span>
<span class="type"><a href="qnetworkconfiguration.html">QNetworkConfiguration</a></span><span class="operator">::</span>Discovered) {
config <span class="operator">=</span> manager<span class="operator">.</span>defaultConfiguration();
}
m_webView<span class="operator">-</span><span class="operator">></span>page()<span class="operator">-</span><span class="operator">></span>networkAccessManager()<span class="operator">-</span><span class="operator">></span>setConfiguration(config);
}
<span class="type"><a href="qtimer.html">QTimer</a></span><span class="operator">::</span>singleShot(<span class="number">0</span><span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(initialize()));
}
<span class="type">void</span> BrowserView<span class="operator">::</span>initialize()
{
connect(m_zoomStrip<span class="operator">,</span> SIGNAL(zoomInClicked())<span class="operator">,</span> SLOT(zoomIn()));
connect(m_zoomStrip<span class="operator">,</span> SIGNAL(zoomOutClicked())<span class="operator">,</span> SLOT(zoomOut()));
connect(m_controlStrip<span class="operator">,</span> SIGNAL(menuClicked())<span class="operator">,</span> SIGNAL(menuButtonClicked()));
connect(m_controlStrip<span class="operator">,</span> SIGNAL(backClicked())<span class="operator">,</span> m_webView<span class="operator">,</span> SLOT(back()));
connect(m_controlStrip<span class="operator">,</span> SIGNAL(forwardClicked())<span class="operator">,</span> m_webView<span class="operator">,</span> SLOT(forward()));
connect(m_controlStrip<span class="operator">,</span> SIGNAL(closeClicked())<span class="operator">,</span> qApp<span class="operator">,</span> SLOT(quit()));
<span class="type"><a href="qpalette.html">QPalette</a></span> pal <span class="operator">=</span> m_webView<span class="operator">-</span><span class="operator">></span>palette();
pal<span class="operator">.</span>setBrush(<span class="type"><a href="qpalette.html">QPalette</a></span><span class="operator">::</span>Base<span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>white);
m_webView<span class="operator">-</span><span class="operator">></span>setPalette(pal);
FlickCharm <span class="operator">*</span>flickCharm <span class="operator">=</span> <span class="keyword">new</span> FlickCharm(<span class="keyword">this</span>);
flickCharm<span class="operator">-</span><span class="operator">></span>activateOn(m_webView);
m_webView<span class="operator">-</span><span class="operator">></span>setZoomFactor(<span class="keyword">static_cast</span><span class="operator"><</span><span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span><span class="operator">></span>(m_currentZoom)<span class="operator">/</span><span class="number">100.0</span>);
connect(m_webView<span class="operator">,</span> SIGNAL(loadStarted())<span class="operator">,</span> SLOT(start()));
connect(m_webView<span class="operator">,</span> SIGNAL(loadProgress(<span class="type">int</span>))<span class="operator">,</span> SLOT(setProgress(<span class="type">int</span>)));
connect(m_webView<span class="operator">,</span> SIGNAL(loadFinished(<span class="type">bool</span>))<span class="operator">,</span> SLOT(finish(<span class="type">bool</span>)));
connect(m_webView<span class="operator">,</span> SIGNAL(urlChanged(<span class="type"><a href="qurl.html">QUrl</a></span>))<span class="operator">,</span> SLOT(updateTitleBar()));
m_webView<span class="operator">-</span><span class="operator">></span>setHtml(<span class="string">"about:blank"</span>);
m_webView<span class="operator">-</span><span class="operator">></span>setSizePolicy(<span class="type"><a href="qsizepolicy.html">QSizePolicy</a></span><span class="operator">::</span>Expanding<span class="operator">,</span> <span class="type"><a href="qsizepolicy.html">QSizePolicy</a></span><span class="operator">::</span>Expanding);
m_webView<span class="operator">-</span><span class="operator">></span>setFocus();
}
<span class="type">void</span> BrowserView<span class="operator">::</span>start()
{
m_progress <span class="operator">=</span> <span class="number">0</span>;
updateTitleBar();
<span class="comment">//m_titleBar->setText(m_webView->url().toString());</span>
}
<span class="type">void</span> BrowserView<span class="operator">::</span>setProgress(<span class="type">int</span> percent)
{
m_progress <span class="operator">=</span> percent;
updateTitleBar();
<span class="comment">//m_titleBar->setText(QString("Loading %1%").arg(percent));</span>
}
<span class="type">void</span> BrowserView<span class="operator">::</span>updateTitleBar()
{
<span class="type"><a href="qurl.html">QUrl</a></span> url <span class="operator">=</span> m_webView<span class="operator">-</span><span class="operator">></span>url();
m_titleBar<span class="operator">-</span><span class="operator">></span>setHost(url<span class="operator">.</span>host());
m_titleBar<span class="operator">-</span><span class="operator">></span>setTitle(m_webView<span class="operator">-</span><span class="operator">></span>title());
m_titleBar<span class="operator">-</span><span class="operator">></span>setProgress(m_progress);
}
<span class="type">void</span> BrowserView<span class="operator">::</span>finish(<span class="type">bool</span> ok)
{
m_progress <span class="operator">=</span> <span class="number">0</span>;
updateTitleBar();
<span class="comment">// TODO: handle error</span>
<span class="keyword">if</span> (<span class="operator">!</span>ok) {
<span class="comment">//m_titleBar->setText("Loading failed.");</span>
}
}
<span class="type">void</span> BrowserView<span class="operator">::</span>zoomIn()
{
<span class="type">int</span> i <span class="operator">=</span> m_zoomLevels<span class="operator">.</span>indexOf(m_currentZoom);
Q_ASSERT(i <span class="operator">></span><span class="operator">=</span> <span class="number">0</span>);
<span class="keyword">if</span> (i <span class="operator"><</span> m_zoomLevels<span class="operator">.</span>count() <span class="operator">-</span> <span class="number">1</span>)
m_currentZoom <span class="operator">=</span> m_zoomLevels<span class="operator">[</span>i <span class="operator">+</span> <span class="number">1</span><span class="operator">]</span>;
m_webView<span class="operator">-</span><span class="operator">></span>setZoomFactor(<span class="keyword">static_cast</span><span class="operator"><</span><span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span><span class="operator">></span>(m_currentZoom)<span class="operator">/</span><span class="number">100.0</span>);
}
<span class="type">void</span> BrowserView<span class="operator">::</span>zoomOut()
{
<span class="type">int</span> i <span class="operator">=</span> m_zoomLevels<span class="operator">.</span>indexOf(m_currentZoom);
Q_ASSERT(i <span class="operator">></span><span class="operator">=</span> <span class="number">0</span>);
<span class="keyword">if</span> (i <span class="operator">></span> <span class="number">0</span>)
m_currentZoom <span class="operator">=</span> m_zoomLevels<span class="operator">[</span>i <span class="operator">-</span> <span class="number">1</span><span class="operator">]</span>;
m_webView<span class="operator">-</span><span class="operator">></span>setZoomFactor(<span class="keyword">static_cast</span><span class="operator"><</span><span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span><span class="operator">></span>(m_currentZoom)<span class="operator">/</span><span class="number">100.0</span>);
}
<span class="type">void</span> BrowserView<span class="operator">::</span>resizeEvent(<span class="type"><a href="qresizeevent.html">QResizeEvent</a></span> <span class="operator">*</span>event)
{
<span class="type"><a href="qwidget.html">QWidget</a></span><span class="operator">::</span>resizeEvent(event);
<span class="type">int</span> h1 <span class="operator">=</span> m_titleBar<span class="operator">-</span><span class="operator">></span>sizeHint()<span class="operator">.</span>height();
<span class="type">int</span> h2 <span class="operator">=</span> m_controlStrip<span class="operator">-</span><span class="operator">></span>sizeHint()<span class="operator">.</span>height();
m_titleBar<span class="operator">-</span><span class="operator">></span>setGeometry(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> width()<span class="operator">,</span> h1);
m_controlStrip<span class="operator">-</span><span class="operator">></span>setGeometry(<span class="number">0</span><span class="operator">,</span> height() <span class="operator">-</span> h2<span class="operator">,</span> width()<span class="operator">,</span> h2);
m_webView<span class="operator">-</span><span class="operator">></span>setGeometry(<span class="number">0</span><span class="operator">,</span> h1<span class="operator">,</span> width()<span class="operator">,</span> height() <span class="operator">-</span> h1);
<span class="type">int</span> zw <span class="operator">=</span> m_zoomStrip<span class="operator">-</span><span class="operator">></span>sizeHint()<span class="operator">.</span>width();
<span class="type">int</span> zh <span class="operator">=</span> m_zoomStrip<span class="operator">-</span><span class="operator">></span>sizeHint()<span class="operator">.</span>height();
m_zoomStrip<span class="operator">-</span><span class="operator">></span>move(width() <span class="operator">-</span> zw<span class="operator">,</span> (height() <span class="operator">-</span> zh) <span class="operator">/</span> <span class="number">2</span>);
}
<span class="type">void</span> BrowserView<span class="operator">::</span>navigate(<span class="keyword">const</span> <span class="type"><a href="qurl.html">QUrl</a></span> <span class="operator">&</span>url)
{
m_webView<span class="operator">-</span><span class="operator">></span>load(url);
}</pre>
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<!-- @@@demos/embedded/anomaly/src/BrowserView.cpp -->
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