Traverso/cvs/traverso/src/plugins/LV2/LV2Plugin.h

/*
Copyright (C) 2006-2009 Remon Sijrier

This file is part of Traverso

Traverso is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

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 General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA.

*/


#ifndef LV2_PLUGIN_H
#define LV2_PLUGIN_H

#include <slv2/slv2.h>
#include <QList>
#include <QString>
#include <QObject>

#include "Plugin.h"

class AudioBus;
class LV2ControlPort;
class AudioInputPort;
class AudioOutputPort;
class Sheet;

class LV2Plugin : public Plugin
{
        Q_OBJECT
        Q_CLASSINFO("toggle_bypass", tr("Bypass: On/Off"))

public:
        LV2Plugin(Sheet* sheet, bool slave=false);
        LV2Plugin(Sheet* sheet, char* pluginUri);
        ~LV2Plugin();

        void process(AudioBus* bus, unsigned long nframes);

        SLV2Instance  get_instance() const {return m_instance; }
        SLV2Plugin get_slv2_plugin() const {return m_plugin; }
        LV2Plugin* create_copy();

        QDomNode get_state(QDomDocument doc);
        QString get_name();
        
        int init();
        int set_state(const QDomNode & node );
        
        static PluginInfo get_plugin_info(SLV2Plugin plugin);

private:
        QString         m_pluginUri;
        SLV2Plugin     m_plugin;   
        SLV2Instance   m_instance;      
        uint32_t       m_num_ports;     
        struct Port*   m_ports;         
        SLV2Value      m_input_class;   
        SLV2Value      m_output_class;  
        SLV2Value      m_control_class; 
        SLV2Value      m_audio_class;   
        SLV2Value      m_event_class;   
        SLV2Value      optional;        
        bool            m_isSlave;
        
        LV2ControlPort* create_port(int portIndex, float defaultValue);

        int create_instance();

public slots:
        Command* toggle_bypass();
};


class LV2ControlPort : public PluginControlPort
{

public:
        LV2ControlPort(LV2Plugin* plugin, int index, float value);
        LV2ControlPort(LV2Plugin* plugin, const QDomNode node);
        ~LV2ControlPort(){};

        float get_min_control_value();
        float get_max_control_value();
        float get_default_value();
        
        QDomNode get_state(QDomDocument doc);

        QString get_description();
        QString get_symbol();

private:
        LV2Plugin*      m_lv2plugin;
        
        void init();
        QStringList get_hints();
};


#endif

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