File indexing completed on 2024-05-12 05:28:38

 //////////////////////////////////////////////////////////////////////////////
 // breezestackedwidgetdata.cpp
 // data container for QStackedWidget transition
 // -------------------
 //
 // SPDX-FileCopyrightText: 2009 Hugo Pereira Da Costa <hugo.pereira@free.fr>
 //
 // SPDX-License-Identifier: MIT
 //////////////////////////////////////////////////////////////////////////////
 
 #include "breezestackedwidgetdata.h"
 
 namespace Breeze
 {
 //______________________________________________________
 StackedWidgetData::StackedWidgetData(QObject *parent, QStackedWidget *target, int duration)
     : TransitionData(parent, target, duration)
     , _target(target)
     , _index(target->currentIndex())
 {
     // configure transition
     connect(_target.data(), &QObject::destroyed, this, &StackedWidgetData::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();
 }
 
 }