#559 Fix Qt font rendering on OS X 10.9

1 files changed, 86 insertions, 0 deletions

diff --git a/patches/qt4/patch-qeventdispatcher.diff b/patches/qt4/patch-qeventdispatcher.diff
new file mode 100644
index 0000000..89ed478
--- /dev/null
+++ b/patches/qt4/patch-qeventdispatcher.diff
@@ -0,0 +1,86 @@
+--- src/gui/kernel/qeventdispatcher_mac_p.h	2013-06-07 01:16:59.000000000 -0400
++++ src/gui/kernel/qeventdispatcher_mac_p_new-8184b49c12d887928921ed5b695c8c6f04a07514.h	2013-12-08 14:31:01.000000000 -0500
+@@ -173,6 +173,7 @@
+ #ifdef QT_MAC_USE_COCOA
+     // The following variables help organizing modal sessions:
+     static QStack<QCocoaModalSessionInfo> cocoaModalSessionStack;
++    static QStack<QCocoaModalSessionInfo> cocoaModalSessionStackPendingEnd;
+     static bool currentExecIsNSAppRun;
+     static bool nsAppRunCalledByQt;
+     static bool cleanupModalSessionsNeeded;
+@@ -180,6 +181,7 @@
+     static NSModalSession currentModalSession();
+     static void updateChildrenWorksWhenModal();
+     static void temporarilyStopAllModalSessions();
++    static void stopAllPendingEndModalSessions();
+     static void beginModalSession(QWidget *widget);
+     static void endModalSession(QWidget *widget);
+     static void cancelWaitForMoreEvents();
+--- src/gui/kernel/qeventdispatcher_mac.mm	2013-06-07 01:16:59.000000000 -0400
++++ src/gui/kernel/qeventdispatcher_mac_new-833e02de99494686f8dd7a567f6e19e847508f11.mm	2013-12-08 14:30:59.000000000 -0500
+@@ -603,6 +603,9 @@
+                 while ([NSApp runModalSession:session] == NSRunContinuesResponse && !d->interrupt)
+                     qt_mac_waitForMoreModalSessionEvents();
+ 
++                // stop all pending end modal sessions
++                d->stopAllPendingEndModalSessions();
++
+                 if (!d->interrupt && session == d->currentModalSessionCached) {
+                     // Someone called [NSApp stopModal:] from outside the event
+                     // dispatcher (e.g to stop a native dialog). But that call wrongly stopped
+@@ -678,6 +681,9 @@
+             if (!d->interrupt)
+                 QCoreApplicationPrivate::sendPostedEvents(0, 0, d->threadData);
+ 
++            // stop all pending end modal sessions
++            d->stopAllPendingEndModalSessions();
++
+             // Since the window that holds modality might have changed while processing
+             // events, we we need to interrupt when we return back the previous process
+             // event recursion to ensure that we spin the correct modal session.
+@@ -781,6 +787,7 @@
+ 
+ #ifdef QT_MAC_USE_COCOA
+ QStack<QCocoaModalSessionInfo> QEventDispatcherMacPrivate::cocoaModalSessionStack;
++QStack<QCocoaModalSessionInfo> QEventDispatcherMacPrivate::cocoaModalSessionStackPendingEnd;
+ bool QEventDispatcherMacPrivate::currentExecIsNSAppRun = false;
+ bool QEventDispatcherMacPrivate::nsAppRunCalledByQt = false;
+ bool QEventDispatcherMacPrivate::cleanupModalSessionsNeeded = false;
+@@ -828,6 +835,20 @@
+     currentModalSessionCached = 0;
+ }
+ 
++void QEventDispatcherMacPrivate::stopAllPendingEndModalSessions()
++{
++    // stop all modal sessions pending end
++    int stackSize = cocoaModalSessionStackPendingEnd.size();
++    for (int i=stackSize-1; i>=0; --i) {
++        QCocoaModalSessionInfo &info = cocoaModalSessionStackPendingEnd[i];
++        cocoaModalSessionStackPendingEnd.remove(i);
++        if (info.session) {
++            [NSApp endModalSession:info.session];
++            [(NSWindow *)info.nswindow release];
++        }
++    }
++}
++
+ NSModalSession QEventDispatcherMacPrivate::currentModalSession()
+ {
+     // If we have one or more modal windows, this function will create
+@@ -925,10 +946,12 @@
+         }
+         cocoaModalSessionStack.remove(i);
+         currentModalSessionCached = 0;
+-        if (info.session) {
+-            [NSApp endModalSession:info.session];
+-            [(NSWindow *)info.nswindow release];
+-        }
++
++        // Cannot stop the sessions here since we might still be inside a
++        // [NSApp runModalSession:] call. Add the session to the pending end stack and
++        // process the stack after the call to [NSApp runModalSession:] returns.
++        if (info.session)
++            cocoaModalSessionStackPendingEnd.push(info);
+     }
+ 
+     updateChildrenWorksWhenModal();