From 8f9346dd663d65f5030d4fb590564a8661a634d8 Mon Sep 17 00:00:00 2001
From: J-P Nurmi <jpnurmi@digia.com>
Date: Thu, 4 Oct 2012 15:30:09 +0200
Subject: [PATCH] Add QEvent::StyleAnimationUpdate: style animation target
 should update

The event will be sent from the upcoming style animations. This change
merely introduces the new event type and makes both QWidget and
QGraphicsWidget call update() upon receiving the event.

Change-Id: I69bb4d05bacb22f7e3a2512cae68848801e4f4d7
Reviewed-by: Jens Bache-Wiig <jens.bache-wiig@digia.com>
---
 src/corelib/kernel/qcoreevent.cpp            | 1 +
 src/corelib/kernel/qcoreevent.h              | 2 ++
 src/widgets/graphicsview/qgraphicswidget.cpp | 1 +
 src/widgets/kernel/qwidget.cpp               | 3 +++
 4 files changed, 7 insertions(+)

diff --git a/src/corelib/kernel/qcoreevent.cpp b/src/corelib/kernel/qcoreevent.cpp
index 231e7f34cdb..71690ba90be 100644
--- a/src/corelib/kernel/qcoreevent.cpp
+++ b/src/corelib/kernel/qcoreevent.cpp
@@ -262,6 +262,7 @@ QT_BEGIN_NAMESPACE
     \omitvalue ShowWindowRequest
     \omitvalue Speech
     \omitvalue Style
+    \omitvalue StyleAnimationUpdate
     \omitvalue ZeroTimerEvent
     \omitvalue ApplicationActivated
     \omitvalue ApplicationDeactivated
diff --git a/src/corelib/kernel/qcoreevent.h b/src/corelib/kernel/qcoreevent.h
index 98dde37e3a5..d30f93f9f35 100644
--- a/src/corelib/kernel/qcoreevent.h
+++ b/src/corelib/kernel/qcoreevent.h
@@ -279,6 +279,8 @@ public:
 
         PlatformPanel = 212,
 
+        StyleAnimationUpdate = 213,             // style animation target should be updated
+
         // 512 reserved for Qt Jambi's MetaCall event
         // 513 reserved for Qt Jambi's DeleteOnMainThread event
 
diff --git a/src/widgets/graphicsview/qgraphicswidget.cpp b/src/widgets/graphicsview/qgraphicswidget.cpp
index cc8ea47e7ee..05ae51c6307 100644
--- a/src/widgets/graphicsview/qgraphicswidget.cpp
+++ b/src/widgets/graphicsview/qgraphicswidget.cpp
@@ -1408,6 +1408,7 @@ bool QGraphicsWidget::event(QEvent *event)
         break;
     case QEvent::WindowActivate:
     case QEvent::WindowDeactivate:
+    case QEvent::StyleAnimationUpdate:
         update();
         break;
         // Taken from QWidget::event
diff --git a/src/widgets/kernel/qwidget.cpp b/src/widgets/kernel/qwidget.cpp
index ffcaa15527a..fa055bb2109 100644
--- a/src/widgets/kernel/qwidget.cpp
+++ b/src/widgets/kernel/qwidget.cpp
@@ -8142,6 +8142,9 @@ bool QWidget::event(QEvent *event)
     case QEvent::UpdateLater:
         update(static_cast<QUpdateLaterEvent*>(event)->region());
         break;
+    case QEvent::StyleAnimationUpdate:
+        update();
+        break;
 
     case QEvent::WindowBlocked:
     case QEvent::WindowUnblocked: