helpbrowser.cpp Example File

help/contextsensitivehelp/helpbrowser.cpp
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 #include <QtCore/QLibraryInfo>
 #include <QtGui/QApplication>
 #include <QtHelp/QHelpEngineCore>

 #include "helpbrowser.h"

 HelpBrowser::HelpBrowser(QWidget *parent)
     : QTextBrowser(parent)
 {
     QString collectionFile = QLibraryInfo::location(QLibraryInfo::ExamplesPath)
         + QLatin1String("/help/contextsensitivehelp/doc/wateringmachine.qhc");

     m_helpEngine = new QHelpEngineCore(collectionFile, this);
     if (!m_helpEngine->setupData()) {
         delete m_helpEngine;
         m_helpEngine = 0;
     }
 }

 void HelpBrowser::showHelpForKeyword(const QString &id)
 {
     if (m_helpEngine) {
         QMap<QString, QUrl> links = m_helpEngine->linksForIdentifier(id);
         if (links.count())
             setSource(links.constBegin().value());
     }
 }

 QVariant HelpBrowser::loadResource(int type, const QUrl &name)
 {
     QByteArray ba;
     if (type < 4 && m_helpEngine) {
         QUrl url(name);
         if (name.isRelative())
             url = source().resolved(url);
         ba = m_helpEngine->fileData(url);
     }
     return ba;
 }