view base/PlayParameterRepository.cpp @ 1752:6d09d68165a4 by-id

Further review of ById: make IDs only available when adding a model to the ById store, not by querying the item directly. This means any id encountered in the wild must have been added to the store at some point (even if later released), which simplifies reasoning about lifecycles

/* -*- 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"
#include "Playable.h"

#include <iostream>

PlayParameterRepository *
PlayParameterRepository::m_instance = new PlayParameterRepository;

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

PlayParameterRepository::~PlayParameterRepository()
{
}

void
PlayParameterRepository::addPlayable(int playableId, const Playable *playable)
{
    if (!getPlayParameters(playableId)) {
        
        // Give all playables the same type of play parameters for the
        // moment

        auto params = std::make_shared<PlayParameters>();
        m_playParameters[playableId] = params;

        params->setPlayClipId
            (playable->getDefaultPlayClipId());

        params->setPlayAudible
            (playable->getDefaultPlayAudible());
        
        connect(params.get(), SIGNAL(playParametersChanged()),
                this, SLOT(playParametersChanged()));
        
        connect(params.get(), SIGNAL(playClipIdChanged(QString)),
                this, SLOT(playClipIdChanged(QString)));
    }
}    

void
PlayParameterRepository::removePlayable(int playableId)
{
    if (m_playParameters.find(playableId) == m_playParameters.end()) {
        return;
    }
    m_playParameters.erase(playableId);
}

void
PlayParameterRepository::copyParameters(int from, int to)
{
    if (!getPlayParameters(from)) {
        cerr << "ERROR: PlayParameterRepository::copyParameters: source playable unknown" << endl;
        return;
    }
    if (!getPlayParameters(to)) {
        cerr << "ERROR: PlayParameterRepository::copyParameters: target playable unknown" << endl;
        return;
    }
    getPlayParameters(to)->copyFrom(getPlayParameters(from).get());
}

std::shared_ptr<PlayParameters>
PlayParameterRepository::getPlayParameters(int playableId) 
{
    if (m_playParameters.find(playableId) == m_playParameters.end()) {
        return nullptr;
    }
    return m_playParameters.find(playableId)->second;
}

void
PlayParameterRepository::playParametersChanged()
{
    PlayParameters *params = dynamic_cast<PlayParameters *>(sender());
    for (auto i: m_playParameters) {
        if (i.second.get() == params) {
            emit playParametersChanged(i.first);
            return;
        }
    }
}

void
PlayParameterRepository::playClipIdChanged(QString id)
{
    PlayParameters *params = dynamic_cast<PlayParameters *>(sender());
    for (auto i: m_playParameters) {
        if (i.second.get() == params) {
            emit playClipIdChanged(i.first, id);
            return;
        }
    }
}

void
PlayParameterRepository::clear()
{
    m_playParameters.clear();
}

PlayParameterRepository::EditCommand::EditCommand(std::shared_ptr<PlayParameters> params) :
    m_params(params)
{
    m_from.copyFrom(m_params.get());
    m_to.copyFrom(m_params.get());
}

void
PlayParameterRepository::EditCommand::setPlayMuted(bool muted)
{
    m_to.setPlayMuted(muted);
}

void
PlayParameterRepository::EditCommand::setPlayAudible(bool audible)
{
    m_to.setPlayAudible(audible);
}

void
PlayParameterRepository::EditCommand::setPlayPan(float pan)
{
    m_to.setPlayPan(pan);
}

void
PlayParameterRepository::EditCommand::setPlayGain(float gain)
{
    m_to.setPlayGain(gain);
}

void
PlayParameterRepository::EditCommand::setPlayClipId(QString id)
{
    m_to.setPlayClipId(id);
}

void
PlayParameterRepository::EditCommand::execute()
{
    m_params->copyFrom(&m_to);
}

void
PlayParameterRepository::EditCommand::unexecute()
{
    m_params->copyFrom(&m_from);
}
    
QString
PlayParameterRepository::EditCommand::getName() const
{
    QString name;
    QString multiname = tr("Adjust Playback Parameters");

    int changed = 0;

    if (m_to.isPlayAudible() != m_from.isPlayAudible()) {
        name = tr("Change Playback Mute State");
        if (++changed > 1) return multiname;
    }

    if (m_to.getPlayGain() != m_from.getPlayGain()) {
        name = tr("Change Playback Gain");
        if (++changed > 1) return multiname;
    }

    if (m_to.getPlayPan() != m_from.getPlayPan()) {
        name = tr("Change Playback Pan");
        if (++changed > 1) return multiname;
    }

    if (m_to.getPlayClipId() != m_from.getPlayClipId()) {
        name = tr("Change Playback Sample");
        if (++changed > 1) return multiname;
    }

    if (name == "") return multiname;
    return name;
}