qtbrowserplugin/doc/html/qtbrowserplugin-example-trivial.html


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<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE html
    PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
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  <title>Trivial Example</title>
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</tr></table><h1 class="title">Trivial Example<br /><span class="subtitle"></span>
</h1>
<p>This example is trivial, and thus useful for investigating problems you might have installing plugins. If everything works correctly, the <tt>trivial</tt> plugin should appear below as a rectangular field below with some text in it:</p>
  <object id="TrivialObject" TYPE=trivial/very WIDTH=200 HEIGHT=100 text="Very Trivial!">
  </object>
  <p>Implementation:</p>
<pre><span class="comment"> /****************************************************************************
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 #include &lt;QtGui&gt;
 #include &lt;qtbrowserplugin.h&gt;

 class Trivial : public QWidget
 {
     Q_OBJECT
     Q_PROPERTY(QString text READ text WRITE setText)

     Q_CLASSINFO(&quot;ClassID&quot;, &quot;{5a22176d-118f-4185-9653-9f98958a6df8}&quot;)
     Q_CLASSINFO(&quot;InterfaceID&quot;, &quot;{2df735ba-da4f-4fb7-8f35-b8dfbf8cfd9a}&quot;)
     Q_CLASSINFO(&quot;EventsID&quot;, &quot;{449de213-f8bd-4d2e-a2cf-eab407c03245}&quot;)

     Q_CLASSINFO(&quot;MIME&quot;, &quot;trivial/very:xxx:Trivial and useless&quot;)
     Q_CLASSINFO(&quot;ToSuperClass&quot;, &quot;Trivial&quot;)
     Q_CLASSINFO(&quot;DefaultProperty&quot;, &quot;text&quot;)

 public:
     Trivial(QWidget *parent = 0)
         : QWidget(parent)
     {
         m_text = QString::fromLatin1(&quot;Empty&quot;);
     }

     void mousePressEvent(QMouseEvent *)
     {
         mouseDown();
     }
     void mouseMoveEvent(QMouseEvent *e)
     {
         mouseMove(e-&gt;x(), e-&gt;y());
     }
     void mouseReleaseEvent(QMouseEvent*)
     {
         mouseUp();
     }
     QString text() const
     {
         return m_text;
     }

 public slots:
     void about()
     {
         QMessageBox::aboutQt(this);
     }
     void setText(const QString &amp;text)
     {
         m_text = text;
         update();
     }

 signals:
     void mouseDown();
     void mouseMove(int x, int y);
     void mouseUp();

 protected:
     void paintEvent(QPaintEvent*)
     {
         QPainter p(this);
         QRect r(rect());
         r.adjust(0, 0, -1, -1);

         p.drawRect(r);
         p.drawText(r, Qt::AlignCenter, m_text);
     }

 private:
     QString m_text;
 };

 #include &quot;trivial.moc&quot;

 QTNPFACTORY_BEGIN(&quot;Trivial Qt-based Plugin&quot;, &quot;A Qt-based LiveConnected plug-in that does nothing&quot;)
     QTNPCLASS(Trivial)
 QTNPFACTORY_END()

 #ifdef QAXSERVER
 #include &lt;ActiveQt/QAxFactory&gt;
 QAXFACTORY_BEGIN(&quot;{aa3216bf-7e20-482c-84c6-06167bacb616}&quot;, &quot;{08538ca5-eb7a-4f24-a3c4-a120c6e04dc4}&quot;)
     QAXCLASS(Trivial)
 QAXFACTORY_END()
 #endif</pre>
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