//////////////////////////////////////////////////////////////////////////////
// adwaitastackedwidgetdata.cpp
// data container for QStackedWidget transition
// -------------------
//
// Copyright (c) 2009 Hugo Pereira Da Costa <hugo.pereira@free.fr>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//////////////////////////////////////////////////////////////////////////////
#include "adwaitastackedwidgetdata.h"
namespace Adwaita
{
//______________________________________________________
StackedWidgetData::StackedWidgetData( QObject* parent, QStackedWidget* target, int duration ):
TransitionData( parent, target, duration ),
_target( target ),
_index( target->currentIndex() )
{
// configure transition
connect( _target.data(), SIGNAL(destroyed()), SLOT(targetDestroyed()) );
connect( _target.data(), SIGNAL(currentChanged(int)), SLOT(animate()) );
// disable focus
transition().data()->setAttribute(Qt::WA_NoMousePropagation, true);
transition().data()->setFlag(TransitionWidget::PaintOnWidget, true);
setMaxRenderTime( 50 );
}
//___________________________________________________________________
bool StackedWidgetData::initializeAnimation( void )
{
// check enability
if( !( _target && _target.data()->isVisible() ) )
{ return false; }
// check index
if( _target.data()->currentIndex() == _index )
{ return false; }
// do not animate if either index or currentIndex is not valid
// but update _index none the less
if( _target.data()->currentIndex() < 0 || _index < 0 )
{
_index = _target.data()->currentIndex();
return false;
}
// get old widget (matching _index) and initialize transition
if( QWidget *widget = _target.data()->widget( _index ) )
{
transition().data()->setOpacity( 0 );
startClock();
transition().data()->setGeometry( widget->geometry() );
transition().data()->setStartPixmap( transition().data()->grab( widget ) );
_index = _target.data()->currentIndex();
return !slow();
} else {
_index = _target.data()->currentIndex();
return false;
}
}
//___________________________________________________________________
bool StackedWidgetData::animate( void )
{
// check enability
if( !enabled() ) return false;
// initialize animation
if( !initializeAnimation() ) return false;
// show transition widget
transition().data()->show();
transition().data()->raise();
transition().data()->animate();
return true;
}
//___________________________________________________________________
void StackedWidgetData::finishAnimation( void )
{
// disable updates on currentWidget
if( _target && _target.data()->currentWidget() )
{ _target.data()->currentWidget()->setUpdatesEnabled( false ); }
// hide transition
transition().data()->hide();
// reenable updates and repaint
if( _target && _target.data()->currentWidget() )
{
_target.data()->currentWidget()->setUpdatesEnabled( true );
_target.data()->currentWidget()->repaint();
}
// invalidate start widget
transition().data()->resetStartPixmap();
}
//___________________________________________________________________
void StackedWidgetData::targetDestroyed( void )
{
setEnabled( false );
_target.clear();
}
}