src/playlistgenerator/TreeController.cpp

0001 /****************************************************************************************
0002  * Copyright (c) 2008-2010 Soren Harward <stharward@gmail.com>                          *
0003  *                                                                                      *
0004  * This program is free software; you can redistribute it and/or modify it under        *
0005  * the terms of the GNU General Public License as published by the Free Software        *
0006  * Foundation; either version 2 of the License, or (at your option) any later           *
0007  * version.                                                                             *
0008  *                                                                                      *
0009  * This program is distributed in the hope that it will be useful, but WITHOUT ANY      *
0010  * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A      *
0011  * PARTICULAR PURPOSE. See the GNU General Public License for more details.             *
0012  *                                                                                      *
0013  * You should have received a copy of the GNU General Public License along with         *
0014  * this program.  If not, see <http://www.gnu.org/licenses/>.                           *
0015  ****************************************************************************************/
0016
0017 #include "TreeController.h"
0018
0019 #include "ConstraintNode.h"
0020 #include "TreeModel.h"
0021 #include "PresetModel.h"
0022
0023 #include "core/support/Debug.h"
0024
0025 #include <QComboBox>
0026 #include <QLabel>
0027 #include <QLayout>
0028 #include <QObject>
0029 #include <QTreeView>
0030
0031 APG::TreeController::TreeController( TreeModel* m, QTreeView* v, QWidget* p )
0032         : QObject( p )
0033         , m_model( m )
0034         , m_view( v )
0035 {
0036     DEBUG_BLOCK
0037 }
0038
0039 APG::TreeController::~TreeController()
0040 {
0041     DEBUG_BLOCK
0042 }
0043
0044 void
0045 APG::TreeController::addGroup() const
0046 {
0047     QModelIndex newidx = m_model->insertGroup( m_view->currentIndex() );
0048     m_view->expandAll();
0049     m_view->setCurrentIndex( newidx );
0050 }
0051
0052 void
0053 APG::TreeController::addConstraint( const QString& constraintName ) const
0054 {
0055     QModelIndex newidx = m_model->insertConstraint( m_view->currentIndex(), constraintName );
0056     m_view->setCurrentIndex( newidx );
0057 }
0058
0059 void
0060 APG::TreeController::removeNode() const
0061 {
0062     bool r = m_model->removeNode( m_view->currentIndex() );
0063     if ( !r )
0064         error() << "for some reason, the node could not be removed";
0065
0066     // force re-selection of root index
0067     if ( m_view->currentIndex() == QModelIndex() ) {
0068         debug() << "deleted root index";
0069         m_view->setCurrentIndex( m_model->index( 0, 0 ) );
0070     }
0071 }