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// -*- c++ -*-
/* This file is part of the KDE project
*
* Copyright (C) 2000 Richard Moore <rich@kde.org>
* 2000 Wynn Wilkes <wynnw@caldera.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef KJAVAAPPLETWIDGET_H
#define KJAVAAPPLETWIDGET_H
#include <qwidget.h>
#ifndef Q_WS_QWS //FIXME(?) I don't think this is possible with Qt Embedded
#include "java/kjavaappletcontext.h"
#include "java/kjavaapplet.h"
#include <qxembed.h>
#include <kwinmodule.h>
/**
* @short A widget for displaying Java applets
*
* KJavaAppletWidget provides support for the inclusion of Java applets
* in Qt and KDE applications. To create an applet, you must first create
* a context object in which it will run. There can be several applets and
* contexts in operation at a given time, for example in a web browser there
* would be one context object for each web page. Applets in the same context
* can communicate with each other, applets in different contexts cannot.
* Once you have created a KJavaAppletContext, you can create as many
* applets in it as you want.
*
* Once you have created the applet widget, you should access the applet() method
* to call the various setXXX methods to configure the applet,
* They correspond to the HTML tags used to embed applets in a web page.
* Once the applet is configured, call the create() method to set things in motion.
* The applet is running when it first appears, but you can start or stop it
* when you like (for example if it scrolls off the screen).
*
* This widget works by using the KJavaAppletServer, which fires off a
* Java server process with which it communicates using the
* KDE Java Applet Server (KJAS) protocol over stdin and stdout.
* The applet windows are swallowed and attached to the QWidget, but they are
* actually running in a different process. This has the advantage of robustness
* and reusability. The details of the communication are hidden from the user
* in the KJASAppletServer class. Normally only a single server process is used for
* all of the applets in a given application, this is all sorted automatically.
* The KJAS server is 100% pure Java, and should also prove useful for people
* wishing to add java support to other systems (for example a perl/Tk binding
* is perfectly feasible). All you need to do is implement the protocol and
* (optionally) swallow the applet windows.
*
* The applet support in KDE is still dependent on the KWin Window Manager. The
* applet swallowing will not work under other Window Managers. Hopefully this
* will be fixed in the future.
*
* For a description of the KJAS protocol, please see the KJAS_GRAMMAR.txt file.
*
* @author Richard J. Moore, rich@kde.org
* @author Wynn Wilkes, wynnw@caldera.com
*/
class KJavaAppletWidgetPrivate;
class KJavaAppletWidget : public QXEmbed
{
Q_OBJECT
public:
KJavaAppletWidget( QWidget* parent=0, const char* name=0 );
~KJavaAppletWidget();
/**
* Returns a pointer to the KJavaApplet. Use this to
* configure the applet's parameters. You can also
* use it to start and stop the Applet.
*/
KJavaApplet* applet() { return m_applet; }
/**
* Tells the AppletServer to create, initialize, and
* show the Applet.
*/
void showApplet();
QSize sizeHint() const;
void resize( int, int );
protected slots:
/**
* This slot is called by KWin when new windows are added. We check
* to see if the window has the title we set. If so we embed it.
*/
void setWindow( WId w );
protected:
//The counter to generate ID's for the applets
static int appletCount;
void showEvent (QShowEvent *);
private:
KJavaAppletWidgetPrivate* d;
KJavaApplet* m_applet;
KWinModule* m_kwm;
QString m_swallowTitle;
};
#endif
#endif // KJAVAAPPLETWIDGET_H
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