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Trivial Example

This example is trivial, and thus useful for investigating problems you might have installing plugins. If everything works correctly, the trivial plugin should appear below as a rectangular field below with some text in it:

Implementation:

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 ** accordance with the Qt Solutions Commercial License Agreement provided
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 ** Alternatively, 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.
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 ** additional rights. These rights are described in the Nokia Qt LGPL
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 ** 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
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 #include <QtGui>
 #include <qtbrowserplugin.h>

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

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

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

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

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

 public slots:
     void about()
     {
         QMessageBox::aboutQt(this);
     }
     void setText(const QString &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 "trivial.moc"

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

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