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-rw-r--r--src/gui/kernel/qapplication_qws.cpp8
-rw-r--r--src/gui/painting/qwindowsurface_qws.cpp3
2 files changed, 8 insertions, 3 deletions
diff --git a/src/gui/kernel/qapplication_qws.cpp b/src/gui/kernel/qapplication_qws.cpp
index 1e158fc..ab2062c 100644
--- a/src/gui/kernel/qapplication_qws.cpp
+++ b/src/gui/kernel/qapplication_qws.cpp
@@ -661,10 +661,14 @@ void QWSDisplay::Data::sendSynchronousCommand(QWSCommand & cmd)
int QWSDisplay::Data::takeId()
{
- if (unused_identifiers.count() == 10)
+ int unusedIdCount = unused_identifiers.count();
+ if (unusedIdCount == 10)
create(15);
- if (unused_identifiers.count() == 0)
+ if (unusedIdCount == 0) {
+ create(1); // Make sure we have an incoming id to wait for, just in case we're recursive
waitForCreation();
+ }
+
return unused_identifiers.takeFirst();
}
diff --git a/src/gui/painting/qwindowsurface_qws.cpp b/src/gui/painting/qwindowsurface_qws.cpp
index 639bc92..d5a5c20 100644
--- a/src/gui/painting/qwindowsurface_qws.cpp
+++ b/src/gui/painting/qwindowsurface_qws.cpp
@@ -421,7 +421,8 @@ QWSWindowSurface::QWSWindowSurface(QWidget *widget)
QWSWindowSurface::~QWSWindowSurface()
{
#ifdef Q_BACKINGSTORE_SUBSURFACES
- winIdToSurfaceMap()->remove(winId());
+ if (d_ptr->winId)
+ winIdToSurfaceMap()->remove(d_ptr->winId);
#endif
delete d_ptr;