/***************************************************************************
* Copyright (C) 2006 by Ilya Kotov *
* forkotov02@hotmail.ru *
* *
* 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, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include <QKeyEvent>
#include "playlist.h"
#include "playlistmodel.h"
#include "listwidget.h"
#include "keyboardmanager.h"
#include "mainwindow.h"
KeyboardManager::KeyboardManager ( PlayList* pl )
{
m_playlist = pl;
}
bool KeyboardManager::handleKeyPress ( QKeyEvent* ke )
{
bool handled = TRUE;
switch ( ke->key() )
{
case Qt::Key_Up:
keyUp ( ke );
break;
case Qt::Key_Down:
keyDown ( ke );
break;
case Qt::Key_PageUp:
keyPgUp ( ke );
break;
case Qt::Key_PageDown:
keyPgDown ( ke );
break;
case Qt::Key_Enter:
case Qt::Key_Return:
keyEnter ( ke );
default:
handled = FALSE;
}
return handled;
}
bool KeyboardManager::handleKeyRelease ( QKeyEvent* )
{
return FALSE;
}
void KeyboardManager::setModel ( PlayListModel *m )
{
m_playListModel = m;
}
void KeyboardManager::keyUp ( QKeyEvent * ke )
{
QList<int> rows = m_playListModel->getSelectedRows();
ListWidget* list_widget = m_playlist->listWidget();
if ( rows.count() > 0 )
{
if(rows[0] == 0 && rows.count() == 1)
return;
if ( ! ( ke->modifiers() & Qt::ShiftModifier || ke->modifiers() & Qt::AltModifier ) )
{
m_playListModel->clearSelection();
list_widget->setAnchorRow(-1);
}
bool select_top = false;
int first_visible = list_widget->firstVisibleRow();
int last_visible = list_widget->visibleRows() + first_visible - 1;
foreach ( int i, rows )
{
if ( i > last_visible || i < first_visible )
{
select_top = true;
break;
}
}
if ( !select_top || ke->modifiers() & Qt::ShiftModifier || ke->modifiers() & Qt::AltModifier )
{
if ( ke->modifiers() == Qt::AltModifier )
{
m_playListModel->moveItems ( rows[0],rows[0] - 1 );
list_widget->setAnchorRow ( list_widget->getAnchorRow() - 1 );
}
else
{
if ( rows.last() > list_widget->getAnchorRow() && ke->modifiers() & Qt::ShiftModifier )
{
m_playListModel->setSelected ( rows.last(),false );
}
else if ( rows[0] > 0 )
{
m_playListModel->setSelected ( rows[0] - 1,true );
}
else
{
m_playListModel->setSelected ( rows[0],true );
if(list_widget->getAnchorRow() == -1)
list_widget->setAnchorRow(rows[0]);
}
if ( ! ( ke->modifiers() & Qt::ShiftModifier ) && rows[0] > 0 )
list_widget->setAnchorRow ( rows[0] - 1 );
}
}
else
{
m_playListModel->setSelected ( list_widget->firstVisibleRow(),true );
list_widget->setAnchorRow(list_widget->firstVisibleRow());
}
rows = m_playListModel->getSelectedRows();
if ( rows[0] < list_widget->firstVisibleRow() && list_widget->firstVisibleRow() > 0 )
{
int r = rows.last() > list_widget->getAnchorRow() ? rows.last(): rows.first();
if(ke->modifiers() & Qt::ShiftModifier && (r >= list_widget->firstVisibleRow() ))
;
else
list_widget->scroll ( list_widget->firstVisibleRow() - 1 );
}
}
else
{
//if(list_widget->getAnchorRow() == -1)
list_widget->setAnchorRow(list_widget->firstVisibleRow());
m_playListModel->setSelected ( list_widget->firstVisibleRow(),true );
}
}
void KeyboardManager::keyDown ( QKeyEvent * ke )
{
QList<int> rows = m_playListModel->getSelectedRows();
ListWidget* list_widget = m_playlist->listWidget();
//qWarning("count: %d",rows.count());
if ( rows.count() > 0 )
{
if ( ! ( ke->modifiers() & Qt::ShiftModifier || ke->modifiers() & Qt::AltModifier ) )
{
m_playListModel->clearSelection();
list_widget->setAnchorRow(-1);
}
bool select_top = false;
int first_visible = list_widget->firstVisibleRow();
int last_visible = list_widget->visibleRows() + first_visible - 1;
foreach ( int i, rows )
{
if ( i > last_visible || i < first_visible )
{
select_top = true;
break;
}
}
if ( !select_top || ke->modifiers() & Qt::ShiftModifier || ke->modifiers() & Qt::AltModifier )
{
if ( ke->modifiers() == Qt::AltModifier )
{
m_playListModel->moveItems ( rows.last(),rows.last() + 1 );
list_widget->setAnchorRow ( list_widget->getAnchorRow() + 1 );
}
else
{
//qWarning("list_widget %d",list_widget->getAnchorRow());
//qWarning("model count: %d rows.last(): %d",m_playListModel->count(),rows.last());
if ( rows[0] < list_widget->getAnchorRow() && ke->modifiers() & Qt::ShiftModifier )
m_playListModel->setSelected ( rows[0],false );
else if ( rows.last() < m_playListModel->count() - 1 )
{
m_playListModel->setSelected ( rows.last() + 1,true );
}
else
{
m_playListModel->setSelected ( rows.last(),true );
if(list_widget->getAnchorRow() == -1)
list_widget->setAnchorRow(rows.last());
}
if ( ! ( ke->modifiers() & Qt::ShiftModifier ) && rows.last() < m_playListModel->count() - 1 )
list_widget->setAnchorRow ( rows.last() + 1 );
}
}
else
{
m_playListModel->setSelected ( list_widget->firstVisibleRow(),true );
list_widget->setAnchorRow(list_widget->firstVisibleRow());
}
rows = m_playListModel->getSelectedRows();
if ( !rows.isEmpty() && rows.last() >= list_widget->visibleRows() + list_widget->firstVisibleRow() )
{
int r = rows.first() < list_widget->getAnchorRow() ? rows.first(): rows.last();
if(ke->modifiers() & Qt::ShiftModifier &&
(r < list_widget->firstVisibleRow() + list_widget->visibleRows() ))
;
else
list_widget->scroll ( list_widget->firstVisibleRow() + 1 );
}
}
else
{
m_playListModel->setSelected ( list_widget->firstVisibleRow(),true );
//if(list_widget->getAnchorRow() == -1)
list_widget->setAnchorRow(list_widget->firstVisibleRow());
}
}
void KeyboardManager::keyPgUp ( QKeyEvent * )
{
ListWidget* list_widget = m_playlist->listWidget();
int page_size = list_widget->visibleRows();
int offset= ( list_widget->firstVisibleRow()-page_size >= 0 ) ?list_widget->firstVisibleRow()-page_size:0;
list_widget->scroll ( offset );
}
void KeyboardManager::keyPgDown ( QKeyEvent * )
{
ListWidget* list_widget = m_playlist->listWidget();
int page_size = list_widget->visibleRows();
int offset = ( list_widget->firstVisibleRow() +page_size < m_playListModel->count() ) ?
list_widget->firstVisibleRow() +page_size:m_playListModel->count() - 1;
list_widget->scroll ( offset );
}
void KeyboardManager::keyEnter ( QKeyEvent * )
{
QList<int> rows = m_playListModel->getSelectedRows();
MainWindow* mw = qobject_cast<MainWindow*> ( m_playlist->parentWidget() );
if ( mw && rows.count() > 0 )
{
m_playListModel->setCurrent ( rows[0] );
mw->replay();
}
}
