53 lines
1.7 KiB
C++
53 lines
1.7 KiB
C++
#include "../headers/qmodernstackedwidget.h"
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QModernStackedWidget::QModernStackedWidget(QWidget* parent) : QStackedWidget(parent)
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{
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opacityAnimation = new QPropertyAnimation();
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opacityAnimation->setPropertyName("opacity");
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opacityAnimation->setEasingCurve(QEasingCurve::InOutQuad);
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opacityAnimation->setDuration(400);
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opacityAnimation->setLoopCount(1);
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connect(opacityAnimation, SIGNAL(finished()), this, SLOT(handleAnimationFinished()));
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}
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void QModernStackedWidget::setCurrentWidgetAnimated(QWidget* widget) {
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if(widget == nullptr)
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return;
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this->newWidget = widget;
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// fade old widget out
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QGraphicsOpacityEffect* opacityEffect = new QGraphicsOpacityEffect(this);
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this->currentWidget()->setGraphicsEffect(opacityEffect);
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opacityEffect->setOpacity(1);
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opacityAnimation->setStartValue(1);
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opacityAnimation->setEndValue(0);
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opacityAnimation->setTargetObject(opacityEffect);
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opacityAnimation->start();
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}
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void QModernStackedWidget::handleAnimationFinished() {
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// disable graphical effect to prevent errors
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this->currentWidget()->graphicsEffect()->setEnabled(false);
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if(this->newWidget == nullptr) {
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return;
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}
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// hide new widget
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QGraphicsOpacityEffect* opacityEffect = new QGraphicsOpacityEffect(this);
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this->newWidget->setGraphicsEffect(opacityEffect);
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opacityEffect->setOpacity(0);
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// set new widget
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this->setCurrentWidget(this->newWidget);
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this->newWidget = nullptr;
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// fade new widget in
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opacityAnimation->setTargetObject(opacityEffect);
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opacityAnimation->setStartValue(0);
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opacityAnimation->setEndValue(1);
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opacityAnimation->start();
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}
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