Moved FadeAnimation to WidgetUtils

Author: andrei-toptal

fadeanimation.cpp

@@ -13,7 +13,6 @@ SOURCES += main.cpp\
     cv/cvmodel.cpp \
     cv/cvmodelbuilderoptions.cpp \
     fullscreenselectiondialog.cpp \
-    fadeanimation.cpp \
     dock/colorswidget.cpp \
     dock/accentwidget.cpp \
     controls/coloractionwidget.cpp \
@@ -31,7 +30,6 @@ HEADERS  += mainwindow.h \
     cv/cvmodel.h \
     cv/cvmodelbuilderoptions.h \
     fullscreenselectiondialog.h \
-    fadeanimation.h \
     dock/colorswidget.h \
     dock/accentwidget.h \
     controls/coloractionwidget.h \

fadeanimation.h

@@ -6,6 +6,8 @@
 #include <QGuiApplication>
 #include <QDesktopWidget>
 #include <QApplication>
+#include <QGraphicsOpacityEffect>
+#include <QPropertyAnimation>
 
 
 QWidget *WidgetUtils::createHSeparator()
@@ -36,3 +38,35 @@ void WidgetUtils::centerWindow(QWidget* widget)
         )
     );
 }
+
+void WidgetUtils::fadeIn(QWidget *widget)
+{
+    Q_ASSERT(widget != NULL);
+
+    QGraphicsOpacityEffect *effect = new QGraphicsOpacityEffect(widget);
+    widget->setGraphicsEffect(effect);
+
+    QPropertyAnimation *animation = new QPropertyAnimation(effect, "opacity");
+    animation->setDuration(600);
+    animation->setStartValue(0);
+    animation->setEndValue(1);
+    animation->setEasingCurve(QEasingCurve::InBack);
+    animation->start(QPropertyAnimation::DeleteWhenStopped);
+}
+
+void WidgetUtils::fadeOut(QWidget *widget)
+{
+    Q_ASSERT(widget != NULL);
+
+    QGraphicsOpacityEffect *effect = new QGraphicsOpacityEffect(widget);
+    widget->setGraphicsEffect(effect);
+
+    QPropertyAnimation *animation = new QPropertyAnimation(effect, "opacity");
+    animation->setDuration(600);
+    animation->setStartValue(1);
+    animation->setEndValue(0);
+    animation->setEasingCurve(QEasingCurve::OutBack);
+    animation->start(QPropertyAnimation::DeleteWhenStopped);
+
+    animation->connect(animation, &animation->finished, widget, widget->hide);
+}

reverscreen.pro

@@ -12,6 +12,8 @@ class WidgetUtils
     static QWidget* createHSeparator();
     static QLabel* createInfoLabel(const QString& text);
     static void centerWindow(QWidget* widget);
+    static void fadeIn(QWidget* widget);
+    static void fadeOut(QWidget* widget);
 
 private:
     WidgetUtils() {}