From f681e0e2dbf8605004528e71d8deb5a5b0e8cfa7 Mon Sep 17 00:00:00 2001
From: Uwe Rathmann <Uwe.Rathmann@tigertal.de>
Date: Thu, 4 Apr 2019 17:59:17 +0200
Subject: [PATCH] workround for Qt < 5.10 added

---
 src/controls/QskControl.cpp | 34 ++++++++++++++++++++++++++++------
 1 file changed, 28 insertions(+), 6 deletions(-)

diff --git a/src/controls/QskControl.cpp b/src/controls/QskControl.cpp
index 3b391a14..949e9e71 100644
--- a/src/controls/QskControl.cpp
+++ b/src/controls/QskControl.cpp
@@ -1545,7 +1545,7 @@ bool QskControl::childMouseEventFilter( QQuickItem* item, QEvent* event )
 
     if ( event->type() == QEvent::MouseButtonPress )
     {
-        auto me = static_cast< const QMouseEvent* >( event );
+        auto me = static_cast< QMouseEvent* >( event );
 
         if ( me->source() == Qt::MouseEventSynthesizedByQt )
         {
@@ -1554,15 +1554,37 @@ bool QskControl::childMouseEventFilter( QQuickItem* item, QEvent* event )
                 mouse events. For all versions < 5.10 those events are
                 passed through childMouseEventFilter without doing the
                 extra checks, that are done for real mouse events.
+                Furthermore the coordinates are relative
+                to this - not to item.
+
                 To avoid having a different behavior between using
                 mouse and touch, we do those checks here.
              */
-            if ( !( item->acceptedMouseButtons() & me->button() ) )
-                return false;
 
-            const auto pos = item->mapFromScene( me->windowPos() );
-            if ( !item->contains( pos ) )
-                return false;
+            auto itm = item;
+            auto pos = item->mapFromScene( me->windowPos() );
+
+            for ( itm = item; itm != this; itm = itm->parentItem() )
+            {
+                if ( itm->acceptedMouseButtons() & me->button() )
+                {
+                    if ( itm->contains( pos ) )
+                        break;
+                }
+
+                pos += QPointF( itm->x(), itm->y() );
+            }
+
+            if ( itm != item )
+            {
+                if ( itm == this )
+                    return false;
+
+                QScopedPointer<QMouseEvent> clonedEvent(
+                    QQuickWindowPrivate::cloneMouseEvent( me, &pos ) );
+
+                return d_func()->maybeGesture( itm, clonedEvent.data() );
+            }
         }
     }