Qt Toolkit - qnp.h include file

# qnp.h

This is the verbatim text of the qnp.h include file. It is is provided only for illustration; the copyright remains with Troll Tech.

    /****************************************************************************
    ** $Id: qnp.h,v 1.13 1998/07/03 00:09:26 hanord Exp $
    **
    ** Definition of Qt extension classes for Netscape Plugin support.
    **
    ** Created : 970601
    **
    ** Copyright (C) 1992-1999 Troll Tech AS.  All rights reserved.
    **
    ** This file is part of Qt Free Edition, version 1.45.
    **
    ** See the file LICENSE included in the distribution for the usage
    ** and distribution terms, or http://www.troll.no/free-license.html.
    **
    ** IMPORTANT NOTE: You may NOT copy this file or any part of it into
    ** your own programs or libraries.
    **
    ** Please see http://www.troll.no/pricing.html for information about
    ** Qt Professional Edition, which is this same library but with a
    ** license which allows creation of commercial/proprietary software.
    **
    *****************************************************************************/

    #ifndef QNP_H
    #define QNP_H

    #ifndef QT_H
    #include "qwidget.h"
    #endif // QT_H

    struct _NPInstance;
    struct _NPStream;
    class QNPInstance;

    class QNPStream {
    public:
        ~QNPStream();

        const char* url() const;
        uint end() const;
        uint lastModified() const;

        const char* type() const;
        bool seekable() const;
        bool okay() const;
        bool complete() const;

        void requestRead(int offset, uint length);
        int write( int len, void* buffer );

        QNPInstance* instance() { return inst; }
        QNPStream(QNPInstance*,const char*,_NPStream*,bool);
        void setOkay(bool);
        void setComplete(bool);

    private:
        QNPInstance* inst;
        _NPStream* stream;
        QString mtype;
        int seek:1;
        int isokay:1;
        int iscomplete:1;
    };

    class QNPWidget : public QWidget {
        Q_OBJECT
    public:
        QNPWidget();
        ~QNPWidget();

        void setWindow(bool);
        void unsetWindow();

        virtual void enterInstance();
        virtual void leaveInstance();

        QNPInstance* instance();

    private:
        WId saveWId;
        _NPInstance* pi;
    };

    class QNPInstance : public QObject {
        Q_OBJECT
    public:
        ~QNPInstance();

        // Arguments passed to EMBED
        int argc() const;
        const char* argn(int) const;
        const char* argv(int) const;
        const char* arg(const char* name) const;
        enum InstanceMode { Embed=1, Full=2, Background=3 };
        InstanceMode mode() const;

        // The browser's name
        const char* userAgent() const;

        // Your window.
        virtual QNPWidget* newWindow();
        QNPWidget* widget();

        // Incoming streams (SRC=... tag).
        // Defaults ignore data.
        enum StreamMode { Normal=1, Seek=2, AsFile=3, AsFileOnly=4 };
        virtual bool newStreamCreated(QNPStream*, StreamMode& smode);
        virtual int writeReady(QNPStream*);
        virtual int write(QNPStream*, int offset, int len, void* buffer);
        virtual void streamDestroyed(QNPStream*);

        void status(const char* msg);

        void getURL(const char* url, const char* window=0);
        void postURL(const char* url, const char* window,
                 uint len, const char* buf, bool file);

        QNPStream* newStream(const char* mimetype, const char* window,
            bool as_file=FALSE);
        virtual void streamAsFile(QNPStream*, const char* fname);

        void* getJavaPeer() const;

        virtual bool printFullPage();
        virtual void print(QPainter*);

    protected:
        QNPInstance();

    private:
        friend QNPStream;
        _NPInstance* pi;
    };

    class QNPlugin {
    public:
        // Write this to return your QNPlugin derived class.
        static QNPlugin* create();

        static QNPlugin* actual();

        virtual ~QNPlugin();

        void getVersionInfo(int& plugin_major, int& plugin_minor,
                 int& browser_major, int& browser_minor);

        virtual QNPInstance* newInstance()=0;
        virtual const char* getMIMEDescription() const=0;
        virtual const char* getPluginNameString() const=0;
        virtual const char* getPluginDescriptionString() const=0;

        virtual void* getJavaClass();
        virtual void unuseJavaClass();
        void* getJavaEnv() const;

    protected:
        QNPlugin();
    };

    #endif  // QNP_H