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123 lines
3.6 KiB
123 lines
3.6 KiB
////////////////////////////////////////////////////////////////////////////// |
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// breezestackedwidgetdata.cpp |
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// data container for QStackedWidget transition |
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// ------------------- |
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// |
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// SPDX-FileCopyrightText: 2009 Hugo Pereira Da Costa <hugo.pereira@free.fr> |
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// |
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// SPDX-License-Identifier: MIT |
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////////////////////////////////////////////////////////////////////////////// |
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#include "breezestackedwidgetdata.h" |
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namespace Breeze |
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{ |
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//______________________________________________________ |
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StackedWidgetData::StackedWidgetData( QObject* parent, QStackedWidget* target, int duration ): |
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TransitionData( parent, target, duration ), |
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_target( target ), |
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_index( target->currentIndex() ) |
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{ |
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// configure transition |
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connect( _target.data(), &QObject::destroyed, this, &StackedWidgetData::targetDestroyed ); |
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connect( _target.data(), SIGNAL(currentChanged(int)), SLOT(animate()) ); |
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// disable focus |
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transition().data()->setAttribute(Qt::WA_NoMousePropagation, true); |
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transition().data()->setFlag(TransitionWidget::PaintOnWidget, true); |
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setMaxRenderTime( 50 ); |
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} |
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//___________________________________________________________________ |
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bool StackedWidgetData::initializeAnimation() |
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{ |
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// check enability |
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if( !( _target && _target.data()->isVisible() ) ) |
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{ return false; } |
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// check index |
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if( _target.data()->currentIndex() == _index ) |
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{ return false; } |
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// do not animate if either index or currentIndex is not valid |
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// but update _index none the less |
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if( _target.data()->currentIndex() < 0 || _index < 0 ) |
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{ |
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_index = _target.data()->currentIndex(); |
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return false; |
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} |
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// get old widget (matching _index) and initialize transition |
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if( QWidget *widget = _target.data()->widget( _index ) ) |
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{ |
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transition().data()->setOpacity( 0 ); |
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startClock(); |
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transition().data()->setGeometry( widget->geometry() ); |
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transition().data()->setStartPixmap( transition().data()->grab( widget ) ); |
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_index = _target.data()->currentIndex(); |
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return !slow(); |
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} else { |
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_index = _target.data()->currentIndex(); |
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return false; |
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} |
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} |
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//___________________________________________________________________ |
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bool StackedWidgetData::animate() |
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{ |
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// check enability |
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if( !enabled() ) return false; |
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// initialize animation |
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if( !initializeAnimation() ) return false; |
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// show transition widget |
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transition().data()->show(); |
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transition().data()->raise(); |
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transition().data()->animate(); |
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return true; |
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} |
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//___________________________________________________________________ |
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void StackedWidgetData::finishAnimation() |
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{ |
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// disable updates on currentWidget |
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if( _target && _target.data()->currentWidget() ) |
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{ _target.data()->currentWidget()->setUpdatesEnabled( false ); } |
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// hide transition |
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transition().data()->hide(); |
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// reenable updates and repaint |
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if( _target && _target.data()->currentWidget() ) |
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{ |
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_target.data()->currentWidget()->setUpdatesEnabled( true ); |
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_target.data()->currentWidget()->repaint(); |
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} |
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// invalidate start widget |
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transition().data()->resetStartPixmap(); |
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} |
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//___________________________________________________________________ |
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void StackedWidgetData::targetDestroyed() |
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{ |
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setEnabled( false ); |
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_target.clear(); |
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} |
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}
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