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