otaskbarapplet.h

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/*
                             This file is part of the Opie Project

                             Copyright (C) 2003 Michael 'Mickey' Lauer <mickey@tm.informatik.uni-frankfurt.de>
              =.
            .=l.
           .>+-=
 _;:,     .>    :=|.         This program is free software; you can
.> <`_,   >  .   <=          redistribute it and/or  modify it under
:`=1 )Y*s>-.--   :           the terms of the GNU Library General Public
.="- .-=="i,     .._         License as published by the Free Software
 - .   .-<_>     .<>         Foundation; either version 2 of the License,
     ._= =}       :          or (at your option) any later version.
    .%`+i>       _;_.
    .i_,=:_.      -<s.       This program is distributed in the hope that
     +  .  -:.       =       it will be useful,  but WITHOUT ANY WARRANTY;
    : ..    .:,     . . .    without even the implied warranty of
    =_        +     =;=|`    MERCHANTABILITY or FITNESS FOR A
  _.=:.       :    :=>`:     PARTICULAR PURPOSE. See the GNU
..}^=.=       =       ;      Library General Public License for more
++=   -.     .`     .:       details.
 :     =  ...= . :.=-
 -.   .:....=;==+<;          You should have received a copy of the GNU
  -_. . .   )=.  =           Library General Public License along with
    --        :-=`           this library; see the file COPYING.LIB.
                             If not, write to the Free Software Foundation,
                             Inc., 59 Temple Place - Suite 330,
                             Boston, MA 02111-1307, USA.

*/

#ifndef OTASKBARAPPLET_H
#define OTASKBARAPPLET_H

/* OPIE */
#include <opie2/odebug.h>

#include <qpe/taskbarappletinterface.h>
#include <qpe/qcom.h>

/* QT */
#include <qwidget.h>

class QMouseEvent;

namespace Opie {
namespace Ui   {
namespace Internal {
/*======================================================================================
 * OTaskbarAppletWrapper
 *======================================================================================*/

class OTaskbarAppletWrapperPrivate;
template<class T> class OTaskbarAppletWrapper : public TaskbarAppletInterface
{
  public:
    OTaskbarAppletWrapper():_applet( 0 )
    {
    }

    virtual ~OTaskbarAppletWrapper()
    {
        delete _applet;
    }

    QRESULT queryInterface( const QUuid& uuid, QUnknownInterface** iface )
    {
        odebug << "OTaskbarAppletWrapper::queryInterface()" << oendl;
        *iface = 0;
        if ( uuid == IID_QUnknown )
            *iface = this;
        else if ( uuid == IID_TaskbarApplet )
            *iface = this;
    else
        return QS_FALSE;

        if ( *iface ) (*iface)->addRef();
        return QS_OK;
    }

    Q_REFCOUNT

    virtual T* applet( QWidget* parent )
    {
        if ( !_applet ) _applet = new T( parent );
        return _applet;
    }

    virtual int position() const
    {
        return T::position();
    }

  private:
    T* _applet;
    OTaskbarAppletWrapperPrivate *d;
};

}
/*======================================================================================
 * OTaskbarApplet
 *======================================================================================*/

// Must be inline until after we shipped Opie 1.0

// Having OTaskBarApplet reside in libopieui2 is not possible
// until we link the launcher binary against libopieui2 -
// otherwise the necessary symbols are not present, when
// the dynamic loader [dlopen] tries to resolve an applet which
// inherits OTaskbarApplet

class OTaskbarApplet : public QWidget
{
  public:
    OTaskbarApplet( QWidget* parent, const char* name = 0 );
    virtual ~OTaskbarApplet();


  protected:
    virtual void popup( QWidget* widget );
private:
    class Private;
    Private *d;
};
}
}

#define EXPORT_OPIE_APPLET_v1(  AppLet ) \
    Q_EXPORT_INTERFACE() { \
    Q_CREATE_INSTANCE(  Opie::Ui::Internal::OTaskbarAppletWrapper<AppLet> ) \
    }

#endif

---