/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */

/*
    Rosegarden
    A MIDI and audio sequencer and musical notation editor.

    This program is Copyright 2000-2007
        Guillaume Laurent   <glaurent@telegraph-road.org>,
        Chris Cannam        <cannam@all-day-breakfast.com>,
        Richard Bown        <richard.bown@ferventsoftware.com>

    The moral rights of Guillaume Laurent, Chris Cannam, and Richard
    Bown to claim authorship of this work have been asserted.

    Other copyrights also apply to some parts of this work.  Please
    see the AUTHORS file and individual file headers for details.

    This program 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.  See the file
    COPYING included with this distribution for more information.
*/

#ifndef _ROSEGARDENSEQUENCERIFACE_H_
#define _ROSEGARDENSEQUENCERIFACE_H_

#include <dcopobject.h>
// #include <qvaluevector.h>
// #include <qpair.h>

#include "gui/application/RosegardenDCOP.h"

#include "base/Event.h"
#include "sound/MappedComposition.h"
#include "sound/MappedEvent.h"
#include "base/Instrument.h"
#include "sound/MappedDevice.h"
#include "sound/MappedRealTime.h"
#include "sound/MappedStudio.h"
#include "sound/MappedCommon.h"

namespace Rosegarden {

class RosegardenSequencerIface : virtual public DCOPObject
{
    K_DCOP
public:
    k_dcop:

    // close the sequencer
    //
    virtual void quit() = 0;

    

    // play from a given time with given parameters
    //
    virtual int play(long timeSec,
                     long timeNsec,
                     long readAheadSec,
                     long readAheadNsec,
                     long audioMixSec,
                     long audioMixNsec,
                     long audioReadSec,
                     long audioReadNsec,
                     long audioWriteSec,
                     long audioWriteNsec,
                     long smallFileSize) = 0;

    // record from a given time with given parameters
    //
    virtual int record(long timeSec,
                       long timeNsec,
                       long readAheadSec,
                       long readAheadNsec,
                       long audioMixSec,
                       long audioMixNsec,
                       long audioReadSec,
                       long audioReadNsec,
                       long audioWriteSec,
                       long audioWriteNsec,
                       long smallFileSize,
                       long recordMode) = 0;

    // stop the sequencer
    //
    virtual ASYNC stop() = 0;

    // punch out from recording to playback
    //
    virtual int punchOut() = 0;
    
    // Set the sequencer to a given time
    //
    virtual void jumpTo(long posSec, long posNsec) = 0;

    // Set a loop on the sequencer
    //
    virtual void setLoop(long loopStartSec,
                         long loopStartNsec,
                         long loopEndSec,
                         long loopEndNsec) = 0;

    // Get the status of the Sequencer
    //
    virtual unsigned int getSoundDriverStatus(const QString &guiVersion) = 0;

    // Add and delete audio files on the Sequencer
    //
    virtual int addAudioFile(const QString &fileName, int id) = 0;
    virtual int removeAudioFile(int id) = 0;
    virtual void clearAllAudioFiles() = 0;

    // Single set function as the MappedInstrument is so lightweight.
    // Any mods on the GUI are sent only through this method.
    //
    virtual void setMappedInstrument(int type,
                                     unsigned char channel,
                                     unsigned int id) = 0;

    // The GUI can use this method to process an immediate selection
    // of MappedEvents (Program Changes, SysExs, async Events etc).
    //
    virtual void processSequencerSlice(MappedComposition mC) = 0;


    // Horrible ugly ugly ugly interface for single MappedEvents
    // just until we implement the proper MappedEvent interface
    //
    virtual void processMappedEvent(unsigned int id,
                                    int type,
                                    unsigned char pitch,
                                    unsigned char velocity,
                                    long absTimeSec,
                                    long absTimeNsec,
                                    long durationSec,
                                    long durationNsec,
                                    long audioStartMarkerSec,
                                    long audioStartMarkerNsec) = 0;

    // The proper implementation
    //
    virtual void processMappedEvent(MappedEvent mE) = 0;

    // Return device id following last existing one -- you can treat
    // this as "number of devices" but there might be some holes if
    // devices were deleted, which you will recognise because
    // getMappedDevice(id) will return a device with id NO_DEVICE
    //
    virtual unsigned int getDevices() = 0;

    // Return device by number
    //
    virtual MappedDevice getMappedDevice(unsigned int id) = 0;

    // Query whether the driver implements device reconnection.
    // Returns a non-zero value if the addDevice, removeDevice,
    // getConnections, getConnection and setConnection methods
    // may be used with devices of the given type.
    //
    virtual int canReconnect(int deviceType) = 0;
    
    // Create a device of the given type and direction (corresponding
    // to MidiDevice::DeviceDirection enum) and return its id.
    // The device will have no connection by default.  Direction is
    // currently ignored for non-MIDI devices.
    // Do not use this unless canReconnect(type) returned true.
    //
    virtual unsigned int addDevice(int type, unsigned int direction) = 0;

    // Remove the device of the given id.
    // Ignored if driver does not permit changing the number of devices
    // (i.e. if canReconnect(type) would return false when given the
    // type of the supplied device).
    //
    virtual void removeDevice(unsigned int id) = 0;

    // Rename the given device.
    // Ignored if the driver does not permit this operation.
    //
    virtual void renameDevice(unsigned int id, QString name) = 0;

    // Return the number of permissible connections for a device of
    // the given type and direction (corresponding to MidiDevice::
    // DeviceDirection enum).  Direction is ignored for non-MIDI devices.
    // Returns zero if devices of this type are non-reconnectable
    // (i.e. if canReconnect(type) would return false).
    //
    virtual unsigned int getConnections(int type, unsigned int direction) = 0;

    // Return one of the set of permissible connections for a device of
    // the given type and direction (corresponding to MidiDevice::
    // DeviceDirection enum).  Direction is ignored for non-MIDI devices.
    // Returns the empty string for invalid parameters.
    // 
    virtual QString getConnection(int type,
                                  unsigned int direction,
                                  unsigned int connectionNo) = 0;

    // Reconnect a particular device.
    // Ignored if driver does not permit reconnections or the connection
    // is not one of the permissible set for that device.
    // 
    virtual void setConnection(unsigned int deviceId, QString connection) = 0;

    // Reconnect a device to a particular connection or to the closest
    // thing to that connection currently available (using some heuristic).
    // Ignored if driver does not permit reconnections.
    // 
    virtual void setPlausibleConnection(unsigned int deviceId,
                                        QString idealConnection) = 0;

    // Return the number of different timers we are capable of
    // sychronising against.  This may return 0 if the driver has no
    // ability to change the current timer.
    //
    virtual unsigned int getTimers() = 0;

    // Return the name of a timer from the available set (where
    // n is between 0 and the return value from getTimers() - 1).
    //
    virtual QString getTimer(unsigned int n) = 0;

    // Return the name of the timer we are currently synchronising
    // against.
    // 
    virtual QString getCurrentTimer() = 0;

    // Set the timer we are currently synchronising against.
    // Invalid arguments are simply ignored.
    //
    virtual void setCurrentTimer(QString timer) = 0;

    virtual void setLowLatencyMode(bool lowLatMode) = 0;

    // Fetch audio play latencies
    //
    virtual MappedRealTime getAudioPlayLatency() = 0;
    virtual MappedRealTime getAudioRecordLatency() = 0;

    // Set a property on a MappedObject
    //
    virtual void setMappedProperty(int id,
                                   const QString &property,
                                   float value) = 0;

    // Set many properties on many MappedObjects
    //
    virtual void setMappedProperties(const MappedObjectIdList &ids,
                                     const MappedObjectPropertyList &properties,
                                     const MappedObjectValueList &values) = 0;

    // Set a string property on a MappedObject
    //
    virtual void setMappedProperty(int id,
                                   const QString &property,
                                   const QString &value) = 0;

    // Set a MappedObject to a property list
    //
    virtual void setMappedPropertyList(
                               int id,
                               const QString &property,
                               const MappedObjectPropertyList &values) = 0;

    // Get a mapped object id for a object type
    //
    virtual int getMappedObjectId(int type) = 0;

    // Get a list of properties of a certain type from an object
    //
    virtual std::vector<QString> getPropertyList(int id,
                                                 const QString &property) = 0;

    // Get a list of available plugins
    //
    virtual std::vector<QString> getPluginInformation() = 0;

    // Nasty hack: program name/number mappings are one thing that
    // mapped object properties can't cope with
    //
    virtual QString getPluginProgram(int mappedId, int bank, int program) = 0;

    // Nastier hack: return value is bank << 16 + program
    //
    virtual unsigned long getPluginProgram(int mappedId, const QString &name) = 0;
    
    // Cheat - we can't use a call (getPropertyList) during playback
    // so we use this method to set port N on plugin X.
    //
    virtual void setMappedPort(int pluginIn,
                               unsigned long id,
                               float value) = 0;

    virtual float getMappedPort(int pluginIn,
                                unsigned long id) = 0;

    // Create a (transient, writeable) object
    //
    virtual int createMappedObject(int type) = 0;

    // Destroy an object (returns a bool but for KDE2 DCOP compat we
    // use an int of course).
    //
    virtual int destroyMappedObject(int id) = 0;

    // Connect two objects
    //
    virtual void connectMappedObjects(int id1, int id2) = 0;
    
    // Disconnect two objects
    //
    virtual void disconnectMappedObjects(int id1, int id2) = 0;

    // Disconnect an object from everything
    //
    virtual void disconnectMappedObject(int id) = 0;

    // Driver sample rate
    //
    virtual unsigned int getSampleRate() const = 0;

    // Initialise/Reinitialise the studio back down to read only objects
    // and set to defaults.
    //
    virtual void clearStudio() = 0;

    // Allow the GUI to tell the sequence the duration of a quarter
    // note when the TEMPO changes - this is to allow the sequencer
    // to generate MIDI clock (at 24 PPQN).
    //
    virtual void setQuarterNoteLength(long timeSec, long timeNsec) = 0;

    // Return a (potentially lengthy) human-readable status log
    //
    virtual QString getStatusLog() = 0;

    // Debug stuff, to check MmappedSegment::iterator
    virtual void dumpFirstSegment() = 0;

    /// Remap a segment while playing
    virtual void remapSegment(const QString& filename, size_t newSize) = 0;

    /// Add a segment while playing
    virtual void addSegment(const QString& filename) = 0;

    /// Delete a segment while playing
    virtual void deleteSegment(const QString& filename) = 0;

    /// Close all mmapped segments
    virtual void closeAllSegments() = 0;

    /** Update mute (etc) statuses while playing. The sequencer handles
        this automatically (with no need for this call) for MIDI events,
        but it needs to be prodded when an already-playing audio segment
        drops in or out.
    */
    virtual void remapTracks() = 0;
};

}

#endif // _ROSEGARDENSEQUENCERIFACE_H_
