LadspaFXSelector.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 "LadspaFXSelector.h"
#include "HydrogenApp.h"
 
#include <core/Hydrogen.h>
#include <core/Basics/Song.h>
#include <core/Preferences/Preferences.h>
#include <core/FX/Effects.h>
#include <core/FX/LadspaFX.h>
 
using namespace H2Core;
 
LadspaFXSelector::LadspaFXSelector(int nLadspaFX)
 : QDialog( nullptr )
 , m_pCurrentItem( nullptr )
{
        //
 
        setupUi( this );
 
        setFixedSize( width(), height() );
 
        setWindowTitle( tr( "Select LADSPA FX" ) );
 
        m_sSelectedPluginName = "";
 
        m_nameLbl->setText( QString("") );
        m_labelLbl->setText( QString("") );
        m_typeLbl->setText( QString("") );
        m_pIDLbl->setText( QString("") );
        m_pMakerLbl->setText( QString("") );
        m_pCopyrightLbl->setText( QString("") );
        m_pPluginsListBox->clear();
        m_pOkBtn->setEnabled(false);
 
        m_pGroupsListView->setHeaderLabels( QStringList( tr( "Groups" ) ) );
 
#ifdef H2CORE_HAVE_LADSPA
        //std::shared_ptr<Song> pSong = Hydrogen::get_instance()->getSong();
        LadspaFX *pFX = Effects::get_instance()->getLadspaFX(nLadspaFX);
        if (pFX) {
                m_sSelectedPluginName = pFX->getPluginName();
        }
        buildLadspaGroups();
 
        m_pGroupsListView->headerItem()->setHidden( true );
 
 
//      LadspaFXGroup* pFXGroup = LadspaFX::getLadspaFXGroup();
//      vector<LadspaFXInfo*> list = findPluginsInGroup( m_sSelectedPluginName, pFXGroup );
//      for (uint i = 0; i < list.size(); i++) {
//              m_pPluginsListBox->addItem( list[i]->m_sName.c_str() );
//      }
#endif
 
        connect( m_pPluginsListBox, SIGNAL( itemSelectionChanged () ), this, SLOT( pluginSelected() ) );
        pluginSelected();
//      on_m_pGroupsListView_currentItemChanged( m_pGroupsListView->currentItem(), NULL );
}
 
 
 
LadspaFXSelector::~LadspaFXSelector()
{
        //INFOLOG( "DESTROY" );
}
 
 
 
void LadspaFXSelector::buildLadspaGroups()
{
#ifdef H2CORE_HAVE_LADSPA
        m_pGroupsListView->clear();
        
        H2Core::LadspaFXGroup* pFXGroup = Effects::get_instance()->getLadspaFXGroup();
 
        if(pFXGroup)
        {
                for (uint i = 0; i < pFXGroup->getChildList().size(); i++) {
                        H2Core::LadspaFXGroup *pNewGroup = ( pFXGroup->getChildList() )[ i ];
                        addGroup( m_pGroupsListView, pNewGroup );
                }
 
                m_pGroupsListView->setCurrentItem( m_pCurrentItem );
        }
 
 
#endif
}
 
 
 
#ifdef H2CORE_HAVE_LADSPA
void LadspaFXSelector::addGroup( QTreeWidget *parent, H2Core::LadspaFXGroup *pGroup )
{
        QTreeWidgetItem* pNewItem = new QTreeWidgetItem( parent );
        QFont f = pNewItem->font( 0 );
        f.setBold( true );
        pNewItem->setFont( 0, f );
        buildGroup( pNewItem, pGroup );
}
 
void LadspaFXSelector::addGroup( QTreeWidgetItem * parent, H2Core::LadspaFXGroup *pGroup )
{
        QTreeWidgetItem* pNewItem = new QTreeWidgetItem( parent );
        buildGroup( pNewItem, pGroup );
}
 
void LadspaFXSelector::buildGroup( QTreeWidgetItem *pNewItem, H2Core::LadspaFXGroup *pGroup )
{
        QString sGroupName = pGroup->getName();
        if (sGroupName == QString("Uncategorized")) {
                sGroupName = tr("Alphabetic List");
        }
        else if (sGroupName == QString("Categorized(LRDF)")) {
                sGroupName = tr("Categorized");
        }
        else if (sGroupName == QString("Recently Used")) {
                sGroupName = tr("Recently Used");
        }
        pNewItem->setText( 0, sGroupName );
 
 
        for ( uint i = 0; i < pGroup->getChildList().size(); i++ ) {
                H2Core::LadspaFXGroup *pNewGroup = ( pGroup->getChildList() )[ i ];
 
                addGroup( pNewItem, pNewGroup );
        }
        for(uint i = 0; i < pGroup->getLadspaInfo().size(); i++) {
                H2Core::LadspaFXInfo* pInfo = (pGroup->getLadspaInfo())[i];
                if (pInfo->m_sName == m_sSelectedPluginName) {
                        m_pCurrentItem = pNewItem;
                        break;
                }
        }
}
#endif
 
 
 
QString LadspaFXSelector::getSelectedFX()
{
        return m_sSelectedPluginName;
}
 
 
void LadspaFXSelector::pluginSelected()
{
#ifdef H2CORE_HAVE_LADSPA
        //INFOLOG( "[pluginSelected]" );
        //
 
        if ( m_pPluginsListBox->selectedItems().isEmpty() ) return;
 
        QString sSelected = m_pPluginsListBox->currentItem()->text();
        m_sSelectedPluginName = sSelected;
 
 
        std::vector<H2Core::LadspaFXInfo*> pluginList = Effects::get_instance()->getPluginList();
        for (uint i = 0; i < pluginList.size(); i++) {
                H2Core::LadspaFXInfo *pFXInfo = pluginList[i];
                if (pFXInfo->m_sName == m_sSelectedPluginName ) {
 
                        m_nameLbl->setText(  pFXInfo->m_sName );
                        m_labelLbl->setText( pFXInfo->m_sLabel );
 
                        if ( ( pFXInfo->m_nIAPorts == 2 ) && ( pFXInfo->m_nOAPorts == 2 ) ) {               // Stereo plugin
                                m_typeLbl->setText( tr("Stereo") );
                        }
                        else if ( ( pFXInfo->m_nIAPorts == 1 ) && ( pFXInfo->m_nOAPorts == 1 ) ) {  // Mono plugin
                                m_typeLbl->setText( tr("Mono") );
                        }
                        else {
                                // not supported
                                m_typeLbl->setText( tr("Not supported") );
                        }
 
                        m_pIDLbl->setText( pFXInfo->m_sID );
                        m_pMakerLbl->setText( pFXInfo->m_sMaker );
                        m_pCopyrightLbl->setText( pFXInfo->m_sCopyright );
 
                        break;
                }
        }
        m_pOkBtn->setEnabled(true);
#endif
}
 
 
 
void LadspaFXSelector::on_m_pGroupsListView_currentItemChanged( QTreeWidgetItem * currentItem, QTreeWidgetItem * previous )
{
        UNUSED( previous );
#ifdef H2CORE_HAVE_LADSPA
        //INFOLOG( "new selection: " + currentItem->text(0).toLocal8Bit().constData() );
 
        m_pOkBtn->setEnabled(false);
        m_nameLbl->setText( QString("") );
        m_labelLbl->setText( QString("") );
        m_typeLbl->setText( QString("") );
        m_pIDLbl->setText( QString("") );
        m_pMakerLbl->setText( QString("") );
        m_pCopyrightLbl->setText( QString("") );
 
        // nothing was selected
        if ( currentItem == nullptr ) {
                return;
        }
        
        if ( currentItem->childCount() ) {
                currentItem->setExpanded( true );
        }
 
        QString itemText = currentItem->text( 0 );
 
        m_pPluginsListBox->clear(); // ... Why not anyway ? Jakob Lund
 
        H2Core::LadspaFXGroup* pFXGroup = Effects::get_instance()->getLadspaFXGroup();
 
        std::vector<H2Core::LadspaFXInfo*> pluginList = findPluginsInGroup( itemText, pFXGroup );
        
        int selectedIndex = -1;
        for (int i = 0; i < (int)pluginList.size(); i++) {
                //INFOLOG( "adding plugin: " + pluginList[ i ]->m_sName );
                m_pPluginsListBox->addItem( pluginList[ i ]->m_sName );
                if ( pluginList[ i ]->m_sName == m_sSelectedPluginName ) {
                        selectedIndex = i;
                }
        }
        if ( selectedIndex >= 0 ) {
                m_pPluginsListBox->setCurrentRow( selectedIndex );
        }
#endif
}
 
 
#ifdef H2CORE_HAVE_LADSPA
std::vector<H2Core::LadspaFXInfo*> LadspaFXSelector::findPluginsInGroup( const QString& sSelectedGroup, H2Core::LadspaFXGroup *pGroup )
{
        //INFOLOG( "group: " + sSelectedGroup );
        std::vector<H2Core::LadspaFXInfo*> list;
 
        if ( pGroup->getName() == sSelectedGroup ) {
                //INFOLOG( "found..." );
                for ( uint i = 0; i < pGroup->getLadspaInfo().size(); ++i ) {
                        H2Core::LadspaFXInfo *pInfo = ( pGroup->getLadspaInfo() )[i];
                        list.push_back( pInfo );
                }
                return list;
        }
        else {
                //INFOLOG( "not found...searching in the child groups" );
                for ( uint i = 0; i < pGroup->getChildList().size(); ++i ) {
                        H2Core::LadspaFXGroup *pNewGroup = ( pGroup->getChildList() )[ i ];
                        list = findPluginsInGroup( sSelectedGroup, pNewGroup );
                        if (list.size() != 0) {
                                return list;
                        }
                }
        }
 
        //WARNINGLOG( "[findPluginsInGroup] no group found ('" + sSelectedGroup + "')" );
        return list;
}
#endif