InstrumentEditorPanel.cpp

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/*
 * Hydrogen
 * Copyright(c) 2002-2008 by Alex >Comix< Cominu [comix@users.sourceforge.net]
 * Copyright(c) 2008-2025 The hydrogen development team [hydrogen-devel@lists.sourceforge.net]
 *
 * http://www.hydrogen-music.org
 *
 * 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.
 *
 * 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, see https://www.gnu.org/licenses
 *
 */
 
#include <QLabel>
#include <QPixmap>
#include <QGridLayout>
 
#include <core/Hydrogen.h>
#include <core/Basics/DrumkitComponent.h>
 
#include "InstrumentEditorPanel.h"
#include "../HydrogenApp.h"
 
 
InstrumentEditorPanel* InstrumentEditorPanel::m_pInstance = nullptr;
 
InstrumentEditorPanel* InstrumentEditorPanel::get_instance()
{
        if ( m_pInstance == nullptr  ) {
                m_pInstance = new InstrumentEditorPanel( nullptr );
        }
        return m_pInstance;
}
 
 
 
InstrumentEditorPanel::InstrumentEditorPanel( QWidget *pParent )
{
        UNUSED( pParent );
 
        
 
        m_pInstance = this;
        m_pInstrumentEditor = new InstrumentEditor( nullptr );
 
        // LAYOUT
        QGridLayout *vbox = new QGridLayout();
        vbox->setSpacing( 0 );
        vbox->setContentsMargins( 0, 0, 0, 0 );
 
        vbox->addWidget( m_pInstrumentEditor, 0, 0 );
 
        this->setLayout( vbox );
        m_nLayer = 0;
 
        HydrogenApp::get_instance()->addEventListener(this);
}
 
 
 
InstrumentEditorPanel::~InstrumentEditorPanel()
{
        INFOLOG( "DESTROY" );
}
 
void InstrumentEditorPanel::drumkitLoadedEvent() {
        auto pSong = H2Core::Hydrogen::get_instance()->getSong();
        if ( pSong == nullptr ) {
                return;
        }
        
        auto pComponentList = pSong->getComponents();
        if ( pComponentList != nullptr && pComponentList->size() > 0 ) {
                m_pInstrumentEditor->selectComponent( pComponentList->front()->get_id() );
        } else {
                m_pInstrumentEditor->selectComponent( -1 );
        }
        m_pInstrumentEditor->selectedInstrumentChangedEvent();
}
 
void InstrumentEditorPanel::updateSongEvent( int nValue ) {
        // A new song got loaded
        if ( nValue == 0 ) {
                drumkitLoadedEvent();
        }
}
 
void InstrumentEditorPanel::selectLayer( int nLayer )
{
        m_pInstrumentEditor->selectLayer( nLayer );
        m_nLayer = nLayer;
}
 
void InstrumentEditorPanel::updateWaveDisplay()
{
        selectLayer ( m_nLayer ); // trigger a redisplay of wave preview
}