//////////////////////////////////////////////////////////////////////////////
// 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()
{
// 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()
{
// 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()
{
// 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()
{
setEnabled(false);
_target.clear();
}
} // namespace Adwaita