Create the window when needed

We need to create the XWindow here to
avoid crashes, when resizing the backing store
before creating the window.

Change-Id: Ib8d9efca3552e5a91f5f63a9262449080ae301e5
Reviewed-on: http://codereview.qt-project.org/5259
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Samuel Rødal <samuel.rodal@nokia.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/src/plugins/platforms/xcb/qxcbbackingstore.cpp b/src/plugins/platforms/xcb/qxcbbackingstore.cpp
index df6cf318bb..2c6ec62475 100644
--- a/src/plugins/platforms/xcb/qxcbbackingstore.cpp
+++ b/src/plugins/platforms/xcb/qxcbbackingstore.cpp
@@ -291,7 +291,12 @@ void QXcbBackingStore::resize(const QSize &size, const QRegion &)
     Q_XCB_NOOP(connection());
 
     QXcbScreen *screen = static_cast<QXcbScreen *>(window()->screen()->handle());
-    QXcbWindow* win = static_cast<QXcbWindow *>(window()->handle());
+    QPlatformWindow *pw = window()->handle();
+    if (!pw) {
+        window()->create();
+        pw = window()->handle();
+    }
+    QXcbWindow* win = static_cast<QXcbWindow *>(pw);
 
     delete m_image;
     m_image = new QXcbShmImage(screen, size, win->depth(), win->imageFormat());