annotate base/PlayParameterRepository.cpp @ 335:02d2ad95ea52 spectrogram-cache-rejig

* Get storage advice for each cache in an FFT data server.  Allows us to be
  more confident about the actual memory situation and cut over from memory
  to disc part way through an FFT calculation if necessary.  StorageAdviser
  is now a bit too optimistic though (it's too keen to allocate large numbers
  of small blocks in memory).

/* -*- 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 "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());
    }
}