Windows: Fix the size of drag cursors in multi-screen setups.

Move QWindowsDrag::defaultCursor() to the per-screen instance
of QWindowsCursor so that the cached default drag cursor pixmaps
are created with the correct size per screen.

Task-number: QTBUG-49511
Change-Id: I02f75ac3b1e5e064325b066ee03e1d5c8a7c7ee8
Reviewed-by: Joerg Bornemann <joerg.bornemann@theqtcompany.com>

1 files changed, 3 insertions, 7 deletions

diff --git a/src/plugins/platforms/windows/qwindowsdrag.h b/src/plugins/platforms/windows/qwindowsdrag.h
index 9a5e0b17f2..890ad6c142 100644
--- a/src/plugins/platforms/windows/qwindowsdrag.h
+++ b/src/plugins/platforms/windows/qwindowsdrag.h
@@ -42,6 +42,9 @@
 struct IDropTargetHelper;
 
 QT_BEGIN_NAMESPACE
+
+class QPlatformScreen;
+
 class QWindowsDropMimeData : public QWindowsInternalMimeData {
 public:
     QWindowsDropMimeData() {}
@@ -95,18 +98,11 @@ public:
 
     IDropTargetHelper* dropHelper();
 
-    QPixmap defaultCursor(Qt::DropAction action) const;
-
 private:
     QWindowsDropMimeData m_dropData;
     IDataObject *m_dropDataObject;
 
     IDropTargetHelper* m_cachedDropTargetHelper;
-
-    mutable QPixmap m_copyDragCursor;
-    mutable QPixmap m_moveDragCursor;
-    mutable QPixmap m_linkDragCursor;
-    mutable QPixmap m_ignoreDragCursor;
 };
 
 QT_END_NAMESPACE