1 files changed, 91 insertions, 0 deletions
diff --git a/tests/manual/examples/widgets/effects/fademessage/fademessage.cpp b/tests/manual/examples/widgets/effects/fademessage/fademessage.cpp
new file mode 100644
index 0000000000..3d8385020b
--- /dev/null
+++ b/tests/manual/examples/widgets/effects/fademessage/fademessage.cpp
@@ -0,0 +1,91 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include "fademessage.h"
+
+#include <QtWidgets>
+
+FadeMessage::FadeMessage(QWidget *parent): QGraphicsView(parent)
+{
+    setScene(&m_scene);
+    setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+    setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+
+    setupScene();
+
+    m_animation = new QPropertyAnimation(m_effect, "strength", this);
+    m_animation->setDuration(500);
+    m_animation->setEasingCurve(QEasingCurve::InOutSine);
+    m_animation->setStartValue(0);
+    m_animation->setEndValue(1);
+
+    setRenderHint(QPainter::Antialiasing, true);
+    setFrameStyle(QFrame::NoFrame);
+}
+
+void FadeMessage::togglePopup()
+{
+    if (m_message->isVisible()) {
+        m_message->setVisible(false);
+        m_animation->setDirection(QAbstractAnimation::Backward);
+    } else {
+        m_message->setVisible(true);
+        m_animation->setDirection(QAbstractAnimation::Forward);
+    }
+    m_animation->start();
+}
+
+void FadeMessage::setupScene()
+{
+    QGraphicsRectItem *parent = m_scene.addRect(0, 0, 800, 600);
+    parent->setPen(Qt::NoPen);
+    parent->setZValue(0);
+
+    QGraphicsPixmapItem *bg = m_scene.addPixmap(QPixmap(":/background.jpg"));
+    bg->setParentItem(parent);
+    bg->setZValue(-1);
+
+    for (int i = 1; i < 5; ++i)
+        for (int j = 2; j < 5; ++j) {
+            QGraphicsRectItem *item = m_scene.addRect(i * 50, (j - 1) * 50, 38, 38);
+            item->setParentItem(parent);
+            item->setZValue(1);
+            int hue = 12 * (i * 5 + j);
+            item->setBrush(QColor::fromHsv(hue, 128, 128));
+        }
+
+    QFont font;
+    font.setPointSize(font.pointSize() * 2);
+    font.setBold(true);
+    QFontMetrics fontMetrics(font);
+    int fh = fontMetrics.height();
+
+    QString sceneText = "Qt Everywhere!";
+    int sceneTextWidth = fontMetrics.horizontalAdvance(sceneText);
+
+    QGraphicsRectItem *block = m_scene.addRect(50, 300, sceneTextWidth, fh + 3);
+    block->setPen(Qt::NoPen);
+    block->setBrush(QColor(102, 153, 51));
+
+    QGraphicsTextItem *text = m_scene.addText(sceneText, font);
+    text->setDefaultTextColor(Qt::white);
+    text->setPos(50, 300);
+    block->setZValue(2);
+    block->hide();
+
+    text->setParentItem(block);
+    m_message = block;
+
+    m_effect = new QGraphicsColorizeEffect;
+    m_effect->setColor(QColor(122, 193, 66));
+    m_effect->setStrength(0);
+    m_effect->setEnabled(true);
+    parent->setGraphicsEffect(m_effect);
+
+    QPushButton *press = new QPushButton;
+    press->setText(tr("Press me"));
+    connect(press, &QAbstractButton::clicked, this, &FadeMessage::togglePopup);
+    m_scene.addWidget(press);
+
+    press->move(300, 500);
+}