1 files changed, 133 insertions, 0 deletions
diff --git a/tests/manual/examples/widgets/graphicsview/embeddeddialogs/customproxy.cpp b/tests/manual/examples/widgets/graphicsview/embeddeddialogs/customproxy.cpp
new file mode 100644
index 0000000000..57a104f57d
--- /dev/null
+++ b/tests/manual/examples/widgets/graphicsview/embeddeddialogs/customproxy.cpp
@@ -0,0 +1,133 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include "customproxy.h"
+
+#include <QGraphicsScene>
+#include <QPainter>
+#include <QStyleOptionGraphicsItem>
+
+CustomProxy::CustomProxy(QGraphicsItem *parent, Qt::WindowFlags wFlags)
+    : QGraphicsProxyWidget(parent, wFlags), timeLine(new QTimeLine(250, this))
+{
+    connect(timeLine, &QTimeLine::valueChanged,
+            this, &CustomProxy::updateStep);
+    connect(timeLine, &QTimeLine::stateChanged,
+            this, &CustomProxy::stateChanged);
+}
+
+QRectF CustomProxy::boundingRect() const
+{
+    return QGraphicsProxyWidget::boundingRect().adjusted(0, 0, 10, 10);
+}
+
+void CustomProxy::paintWindowFrame(QPainter *painter, const QStyleOptionGraphicsItem *option,
+                                   QWidget *widget)
+{
+    const QColor color(0, 0, 0, 64);
+
+    QRectF r = windowFrameRect();
+    QRectF right(r.right(), r.top() + 10, 10, r.height() - 10);
+    QRectF bottom(r.left() + 10, r.bottom(), r.width(), 10);
+    bool intersectsRight = right.intersects(option->exposedRect);
+    bool intersectsBottom = bottom.intersects(option->exposedRect);
+    if (intersectsRight && intersectsBottom) {
+        QPainterPath path;
+        path.addRect(right);
+        path.addRect(bottom);
+        painter->setPen(Qt::NoPen);
+        painter->setBrush(color);
+        painter->drawPath(path);
+    } else if (intersectsBottom) {
+        painter->fillRect(bottom, color);
+    } else if (intersectsRight) {
+        painter->fillRect(right, color);
+    }
+
+    QGraphicsProxyWidget::paintWindowFrame(painter, option, widget);
+}
+
+void CustomProxy::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
+{
+    QGraphicsProxyWidget::hoverEnterEvent(event);
+    scene()->setActiveWindow(this);
+    if (qFuzzyCompare(timeLine->currentValue(), 1))
+        zoomIn();
+}
+
+void CustomProxy::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
+{
+    QGraphicsProxyWidget::hoverLeaveEvent(event);
+    if (!popupShown
+            && (timeLine->direction() != QTimeLine::Backward || qFuzzyIsNull(timeLine->currentValue()))) {
+        zoomOut();
+    }
+}
+
+bool CustomProxy::sceneEventFilter(QGraphicsItem *watched, QEvent *event)
+{
+    if (watched->isWindow()
+            && (event->type() == QEvent::UngrabMouse || event->type() == QEvent::GrabMouse)) {
+        popupShown = watched->isVisible();
+        if (!popupShown && !isUnderMouse())
+            zoomOut();
+    }
+    return QGraphicsProxyWidget::sceneEventFilter(watched, event);
+}
+
+QVariant CustomProxy::itemChange(GraphicsItemChange change, const QVariant &value)
+{
+    if (change == ItemChildAddedChange || change == ItemChildRemovedChange) {
+        if (change == ItemChildAddedChange) {
+            currentPopup = qvariant_cast<QGraphicsItem *>(value);
+            currentPopup->setCacheMode(ItemCoordinateCache);
+            if (scene())
+                currentPopup->installSceneEventFilter(this);
+        } else if (scene()) {
+            currentPopup->removeSceneEventFilter(this);
+            currentPopup = nullptr;
+        }
+    } else if (currentPopup && change == ItemSceneHasChanged) {
+        currentPopup->installSceneEventFilter(this);
+    }
+    return QGraphicsProxyWidget::itemChange(change, value);
+}
+
+void CustomProxy::updateStep(qreal step)
+{
+    QRectF r = boundingRect();
+    setTransform(QTransform()
+                 .translate(r.width() / 2, r.height() / 2)
+                 .rotate(step * 30, Qt::XAxis)
+                 .rotate(step * 10, Qt::YAxis)
+                 .rotate(step * 5, Qt::ZAxis)
+                 .scale(1 + 1.5 * step, 1 + 1.5 * step)
+                 .translate(-r.width() / 2, -r.height() / 2));
+}
+
+void CustomProxy::stateChanged(QTimeLine::State state)
+{
+    if (state == QTimeLine::Running) {
+        if (timeLine->direction() == QTimeLine::Forward)
+            setCacheMode(ItemCoordinateCache);
+    } else if (state == QTimeLine::NotRunning) {
+        if (timeLine->direction() == QTimeLine::Backward)
+            setCacheMode(DeviceCoordinateCache);
+    }
+}
+
+void CustomProxy::zoomIn()
+{
+    if (timeLine->direction() != QTimeLine::Forward)
+        timeLine->setDirection(QTimeLine::Forward);
+    if (timeLine->state() == QTimeLine::NotRunning)
+        timeLine->start();
+}
+
+void CustomProxy::zoomOut()
+{
+    if (timeLine->direction() != QTimeLine::Backward)
+        timeLine->setDirection(QTimeLine::Backward);
+    if (timeLine->state() == QTimeLine::NotRunning)
+        timeLine->start();
+}