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refs #883, added functions for fade in/out

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This commit is contained in:
Klaus Basan
2017-02-19 04:02:20 +01:00
committed by Mathew Sutcliffe
parent 873823eaa1
commit 1690c560b7
2 changed files with 39 additions and 0 deletions
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32
src/blackgui/guiutility.cpp
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@@ -29,8 +29,11 @@
#include <QTabWidget>
#include <QThreadStorage>
#include <QWidget>
#include <QTimer>
#include <Qt>
#include <QtGlobal>
#include <QGraphicsOpacityEffect>
#include <QPropertyAnimation>
using namespace BlackMisc;
@@ -345,4 +348,33 @@ namespace BlackGui
{
return QApplication::topLevelWidgets().contains(widget);
}
QGraphicsOpacityEffect *CGuiUtility::fadeInWidget(int durationMs, QWidget *widget, double startValue, double endValue)
{
// http://stackoverflow.com/questions/19087822/how-to-make-qt-widgets-fade-in-or-fade-out#
Q_ASSERT(widget);
QGraphicsOpacityEffect *effect = new QGraphicsOpacityEffect(widget);
widget->setGraphicsEffect(effect);
QPropertyAnimation *a = new QPropertyAnimation(effect, "opacity");
a->setDuration(durationMs);
a->setStartValue(startValue);
a->setEndValue(endValue);
a->setEasingCurve(QEasingCurve::InBack);
a->start(QPropertyAnimation::DeleteWhenStopped);
return effect;
}
QGraphicsOpacityEffect *CGuiUtility::fadeOutWidget(int durationMs, QWidget *widget, double startValue, double endValue)
{
Q_ASSERT(widget);
QGraphicsOpacityEffect *effect = new QGraphicsOpacityEffect(widget);
widget->setGraphicsEffect(effect);
QPropertyAnimation *a = new QPropertyAnimation(effect, "opacity");
a->setDuration(durationMs);
a->setStartValue(startValue);
a->setEndValue(endValue);
a->setEasingCurve(QEasingCurve::OutBack);
a->start(QPropertyAnimation::DeleteWhenStopped);
return effect;
}
} // ns