File indexing completed on 2024-05-05 04:48:47

 /****************************************************************************************
  * Copyright (c) 2008-2012 Soren Harward <stharward@gmail.com>                          *
  *                                                                                      *
  * 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 <http://www.gnu.org/licenses/>.                           *
  ****************************************************************************************/
 
 #define DEBUG_PREFIX "APG::ConstraintFactory"
 
 #include "Constraint.h"
 #include "ConstraintFactory.h"
 #include "ConstraintGroup.h"
 #include "ConstraintNode.h"
 #include "constraints/Checkpoint.h"
 #include "constraints/PlaylistDuration.h"
 #include "constraints/PlaylistFileSize.h"
 #include "constraints/PlaylistLength.h"
 #include "constraints/PreventDuplicates.h"
 #include "constraints/TagMatch.h"
 
 #include "core/support/Debug.h"
 
 #include <QList>
 #include <QPair>
 #include <QString>
 #include <QStringList>
 
 /******************************************
  * Constraint Factory Registry Entries    *
  ******************************************/
 
 ConstraintFactoryEntry::ConstraintFactoryEntry( const QString& name,
                                                 const QString& i18nN,
                                                 const QString& desc,
                                                 Constraint*( *xmlf )( QDomElement&, ConstraintNode* ),
                                                 Constraint*( *nf )( ConstraintNode* ) )
         : m_name( name )
         , m_i18nName( i18nN )
         , m_description( desc )
         , m_createFromXmlFunc( xmlf )
         , m_createNewFunc( nf )
 {
 }
 
 /******************************************
  * Constraint Factory Singleton           *
  ******************************************/
 
 ConstraintFactory* ConstraintFactory::s_self = nullptr;
 
 ConstraintFactory* ConstraintFactory::instance()
 {
     if ( !ConstraintFactory::s_self ) {
         ConstraintFactory::s_self = new ConstraintFactory();
     }
     return ConstraintFactory::s_self;
 }
 
 void ConstraintFactory::destroy()
 {
     delete ConstraintFactory::s_self;
     ConstraintFactory::s_self = nullptr;
 }
 
 ConstraintFactory::ConstraintFactory()
 {
     ConstraintFactoryEntry* r = nullptr;
 
     r = ConstraintTypes::TagMatch::registerMe();
     m_registryIds[0] = r;
     m_registryNames[r->m_name] = r;
     m_registryUntranslateNames[r->m_i18nName] = r->m_name;
 
     r = ConstraintTypes::PlaylistDuration::registerMe();
     m_registryIds[1] = r;
     m_registryNames[r->m_name] = r;
     m_registryUntranslateNames[r->m_i18nName] = r->m_name;
 
     r = ConstraintTypes::PlaylistLength::registerMe();
     m_registryIds[2] = r;
     m_registryNames[r->m_name] = r;
     m_registryUntranslateNames[r->m_i18nName] = r->m_name;
 
     r = ConstraintTypes::PreventDuplicates::registerMe();
     m_registryIds[3] = r;
     m_registryNames[r->m_name] = r;
     m_registryUntranslateNames[r->m_i18nName] = r->m_name;
 
     r = ConstraintTypes::Checkpoint::registerMe();
     m_registryIds[4] = r;
     m_registryNames[r->m_name] = r;
     m_registryUntranslateNames[r->m_i18nName] = r->m_name;
 
     r = ConstraintTypes::PlaylistFileSize::registerMe();
     m_registryIds[5] = r;
     m_registryNames[r->m_name] = r;
     m_registryUntranslateNames[r->m_i18nName] = r->m_name;
 
     // ADD NEW CONSTRAINT TYPES HERE FOLLOWING SAME PATTERN (DON'T FORGET TO INCREMENT ID)
 }
 
 ConstraintFactory::~ConstraintFactory()
 {
     foreach( ConstraintFactoryEntry* e, m_registryIds ) {
         delete e;
     }
 }
 
 ConstraintNode* ConstraintFactory::createConstraint( QDomElement& xmlelem, ConstraintNode* parent, int row ) const
 {
     QString t = xmlelem.attributeNode( QStringLiteral("type") ).value();
     if ( !m_registryNames.contains( t ) || !parent )
         return nullptr;
 
     ConstraintNode* n = ( *( m_registryNames[t]->m_createFromXmlFunc ) )( xmlelem, parent );
     parent->addChild( n, row );
     return n;
 }
 
 ConstraintNode* ConstraintFactory::createConstraint( const QString& name, ConstraintNode* parent, int row ) const
 {
     if ( !m_registryNames.contains( name ) || !parent )
         return nullptr;
 
     ConstraintNode* n = ( *( m_registryNames[name]->m_createNewFunc ) )( parent );
     parent->addChild( n, row );
     return n;
 }
 
 ConstraintNode* ConstraintFactory::createConstraint( const int idx, ConstraintNode* parent, int row ) const
 {
     if ( !m_registryIds.contains( idx ) || !parent )
         return nullptr;
 
     ConstraintNode* n = ( *( m_registryIds[idx]->m_createNewFunc ) )( parent );
     parent->addChild( n, row );
     return n;
 }
 
 ConstraintNode* ConstraintFactory::createGroup( QDomElement& xmlelem, ConstraintNode* parent, int row ) const
 {
     ConstraintNode* n = ConstraintGroup::createFromXml( xmlelem, parent );
     if ( parent )
         parent->addChild( n, row );
     return n;
 }
 
 ConstraintNode* ConstraintFactory::createGroup( ConstraintNode* parent, int row ) const
 {
     ConstraintNode* n = ConstraintGroup::createNew( parent );
     if ( parent )
         parent->addChild( n, row );
     return n;
 }
 
 const QStringList ConstraintFactory::names() const
 {
     return m_registryNames.keys();
 }
 
 const QStringList ConstraintFactory::i18nNames() const
 {
     return m_registryUntranslateNames.keys();
 }
 
 QList< QPair<int, QString> > ConstraintFactory::registeredConstraints() const
 {
     QList< QPair<int, QString> > d;
     foreach( int i, m_registryIds.keys() ) {
         d.append( QPair<int, QString>( i, m_registryIds[i]->m_name ) );
     }
     return d;
 }
 
 const QString ConstraintFactory::untranslateName( const QString& trn ) const
 {
     return m_registryUntranslateNames.value( trn );
 }