view base/PlayParameterRepository.cpp @ 299:576be0d0d218

* Merge transform directory from sv-match-alignment branch
  (the previous comment included notes for this stuff, but I missed it
  in the actual merge)
* Fix crash when a transform fails to create an output model and the
  thread that created the transform then deletes its input model thinking
  it's no longer needed, even though the transform run thread is still
  using it -- fix is to wait() on the transform before returning the
  null output model

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

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2006 Chris Cannam.
    
    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.
*/

#include "PlayParameterRepository.h"
#include "PlayParameters.h"

//!!! shouldn't be including this here -- restructure needed

//!!! should the AudioGenerator actually implement all this stuff itself?  do we even want this class?
#include "sv/audioio/AudioGenerator.h"

#include <iostream>

PlayParameterRepository *
PlayParameterRepository::m_instance = new PlayParameterRepository;

PlayParameterRepository *
PlayParameterRepository::getInstance()
{
    return m_instance;
}

PlayParameterRepository::~PlayParameterRepository()
{
}

void
PlayParameterRepository::addModel(const Model *model)
{
//    std::cerr << "PlayParameterRepository:addModel " << model <<  std::endl;

    if (!getPlayParameters(model)) {

	// Give all models the same type of play parameters for the
	// moment, provided they can be played at all

	if (AudioGenerator::canPlay(model)) {

//	    std::cerr << "PlayParameterRepository: Adding play parameters for " << model << std::endl;

            PlayParameters *params = new PlayParameters;
	    m_playParameters[model] = params;

            params->setPlayPluginId
                (AudioGenerator::getDefaultPlayPluginId(model));

            params->setPlayPluginConfiguration
                (AudioGenerator::getDefaultPlayPluginConfiguration(model));

	    connect(params, SIGNAL(playParametersChanged()),
		    this, SLOT(playParametersChanged()));

	    connect(params, SIGNAL(playPluginIdChanged(QString)),
		    this, SLOT(playPluginIdChanged(QString)));

	    connect(params, SIGNAL(playPluginConfigurationChanged(QString)),
		    this, SLOT(playPluginConfigurationChanged(QString)));

//            std::cerr << "Connected play parameters " << params << " for model "
//                      << model << " to this " << this << std::endl;

	} else {

//	    std::cerr << "PlayParameterRepository: Model " << model << " not playable" <<  std::endl;
	}	    
    }
}    

void
PlayParameterRepository::removeModel(const Model *model)
{
    delete m_playParameters[model];
    m_playParameters.erase(model);
}

void
PlayParameterRepository::copyParameters(const Model *from, const Model *to)
{
    if (!getPlayParameters(from)) {
        std::cerr << "ERROR: PlayParameterRepository::copyParameters: source model unknown" << std::endl;
        return;
    }
    if (!getPlayParameters(to)) {
        std::cerr << "WARNING: PlayParameterRepository::copyParameters: target model unknown, adding it now" << std::endl;
        addModel(to);
    }
    getPlayParameters(to)->copyFrom(getPlayParameters(from));
}

PlayParameters *
PlayParameterRepository::getPlayParameters(const Model *model) 
{
    if (m_playParameters.find(model) == m_playParameters.end()) return 0;
    return m_playParameters.find(model)->second;
}

void
PlayParameterRepository::playParametersChanged()
{
    PlayParameters *params = dynamic_cast<PlayParameters *>(sender());
    emit playParametersChanged(params);
}

void
PlayParameterRepository::playPluginIdChanged(QString id)
{
    PlayParameters *params = dynamic_cast<PlayParameters *>(sender());
    for (ModelParameterMap::iterator i = m_playParameters.begin();
         i != m_playParameters.end(); ++i) {
        if (i->second == params) {
            emit playPluginIdChanged(i->first, id);
            return;
        }
    }
}

void
PlayParameterRepository::playPluginConfigurationChanged(QString config)
{
    PlayParameters *params = dynamic_cast<PlayParameters *>(sender());
//    std::cerr << "PlayParameterRepository::playPluginConfigurationChanged" << std::endl;
    for (ModelParameterMap::iterator i = m_playParameters.begin();
         i != m_playParameters.end(); ++i) {
        if (i->second == params) {
            emit playPluginConfigurationChanged(i->first, config);
            return;
        }
    }
}

void
PlayParameterRepository::clear()
{
//    std::cerr << "PlayParameterRepository: PlayParameterRepository::clear" << std::endl;
    while (!m_playParameters.empty()) {
	delete m_playParameters.begin()->second;
	m_playParameters.erase(m_playParameters.begin());
    }
}