QPA tablet event support

Should be sufficient to allow implementing the actual functionality in
xcb/cocoa/windows to match the Qt 4 level of tablet event support.

Task-number: QTBUG-25864
Change-Id: Iebcca256dfba841d8976b58fda1b76026d3133a3
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@nokia.com>
Reviewed-by: Morten Johan Sørvig <morten.sorvig@nokia.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/src/gui/kernel/qwindow.cpp b/src/gui/kernel/qwindow.cpp
index c9a49bf69b..8fe62bb7fd 100644
--- a/src/gui/kernel/qwindow.cpp
+++ b/src/gui/kernel/qwindow.cpp
@@ -1522,6 +1522,14 @@ bool QWindow::event(QEvent *ev)
         hideEvent(static_cast<QHideEvent *>(ev));
         break;
 
+#ifndef QT_NO_TABLETEVENT
+    case QEvent::TabletPress:
+    case QEvent::TabletMove:
+    case QEvent::TabletRelease:
+        tabletEvent(static_cast<QTabletEvent *>(ev));
+        break;
+#endif
+
     default:
         return QObject::event(ev);
     }
@@ -1628,6 +1636,19 @@ void QWindow::touchEvent(QTouchEvent *ev)
     ev->ignore();
 }
 
+#ifndef QT_NO_TABLETEVENT
+/*!
+    Override this to handle tablet press, move, and release events.
+
+    Proximity enter and leave events are not sent to windows, they are
+    delivered to the application instance.
+*/
+void QWindow::tabletEvent(QTabletEvent *ev)
+{
+    ev->ignore();
+}
+#endif
+
 /*!
     Override this to handle platform dependent events.