Merge commit 'qt/master-stable' into 4.6-stable

Bring Qt 4.6 into the Qt-S60 repo. Conflicts: configure.exe mkspecs/features/qttest_p4.prf qmake/generators/makefile.cpp src/corelib/io/qdir.cpp src/corelib/io/qprocess.h src/corelib/kernel/qcoreevent.h src/corelib/kernel/qobject.cpp src/corelib/kernel/qsharedmemory_unix.cpp src/corelib/thread/qthread_p.h src/corelib/tools/qvector.h src/gui/dialogs/qdialog.cpp src/gui/dialogs/qfiledialog.cpp src/gui/dialogs/qfiledialog_p.h src/gui/dialogs/qmessagebox.cpp src/gui/graphicsview/qgraphicsitem.cpp src/gui/graphicsview/qgraphicsview.cpp src/gui/image/qpixmapcache.cpp src/gui/kernel/qapplication.cpp src/gui/kernel/qapplication_p.h src/gui/kernel/qwidget.cpp src/gui/kernel/qwidget_p.h src/gui/painting/qdrawhelper.cpp src/gui/painting/qpaintengine_raster.cpp src/gui/text/qfontengine_qpf.cpp src/gui/widgets/qmenubar.cpp src/network/socket/qlocalserver.cpp src/testlib/qtestcase.cpp src/testlib/testlib.pro tests/auto/qimagereader/tst_qimagereader.cpp tests/auto/qitemdelegate/tst_qitemdelegate.cpp tests/auto/qnetworkreply/tst_qnetworkreply.cpp tests/auto/qpixmap/qpixmap.pro
author: Jason Barron <jbarron@trolltech.com> 2009-06-25 13:49:53 (GMT)
committer: Jason Barron <jbarron@trolltech.com> 2009-06-25 13:49:53 (GMT)
commit: db8f05e257019694f5e8076845626008f2adc3dd (patch)
tree: 05d3959403cf15ac5f702091439e028af01f343b /src/corelib/kernel
parent: 8aafaa65a1d16f8b982279f5aceedf1e281ddb5a (diff)
parent: 796a5a2c7d8c91a46ac761dde18b7da2ec6c177b (diff)
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24 files changed, 487 insertions, 348 deletions
diff --git a/src/corelib/kernel/kernel.pri b/src/corelib/kernel/kernel.pri
index 9458946..f7d4208 100644
--- a/src/corelib/kernel/kernel.pri
+++ b/src/corelib/kernel/kernel.pri
@@ -12,7 +12,7 @@ HEADERS += \
 	kernel/qcoreevent.h \
 	kernel/qmetaobject.h \
 	kernel/qmetatype.h \
-        kernel/qmimedata.h \
+	kernel/qmimedata.h \
 	kernel/qobject.h \
 	kernel/qobjectdefs.h \
 	kernel/qsignalmapper.h \
@@ -27,8 +27,8 @@ HEADERS += \
         kernel/qvariant_p.h \
         kernel/qmetaobject_p.h \
         kernel/qobject_p.h \
-        kernel/qcoreglobaldata_p.h \
-        kernel/qsharedmemory.h \
+	kernel/qcoreglobaldata_p.h \
+	kernel/qsharedmemory.h \
         kernel/qsharedmemory_p.h \
         kernel/qsystemsemaphore.h \
         kernel/qsystemsemaphore_p.h \
@@ -43,7 +43,7 @@ SOURCES += \
 	kernel/qcoreevent.cpp \
 	kernel/qmetaobject.cpp \
 	kernel/qmetatype.cpp \
-        kernel/qmimedata.cpp \
+	kernel/qmimedata.cpp \
 	kernel/qobject.cpp \
 	kernel/qobjectcleanuphandler.cpp \
 	kernel/qsignalmapper.cpp \
@@ -53,7 +53,8 @@ SOURCES += \
 	kernel/qvariant.cpp \
         kernel/qcoreglobaldata.cpp \
         kernel/qsharedmemory.cpp \
-        kernel/qsystemsemaphore.cpp
+        kernel/qsystemsemaphore.cpp \
+        kernel/qpointer.cpp
 
 win32 {
 	SOURCES += \
diff --git a/src/corelib/kernel/qabstractitemmodel.cpp b/src/corelib/kernel/qabstractitemmodel.cpp
index fd0e105..6d6caf5 100644
--- a/src/corelib/kernel/qabstractitemmodel.cpp
+++ b/src/corelib/kernel/qabstractitemmodel.cpp
@@ -428,8 +428,8 @@ bool QPersistentModelIndex::isValid() const
 QDebug operator<<(QDebug dbg, const QModelIndex &idx)
 {
 #ifndef Q_BROKEN_DEBUG_STREAM
-    dbg.nospace() << "QModelIndex(" << idx.row() << "," << idx.column()
-                  << "," << idx.internalPointer() << "," << idx.model() << ")";
+    dbg.nospace() << "QModelIndex(" << idx.row() << ',' << idx.column()
+                  << ',' << idx.internalPointer() << ',' << idx.model() << ')';
     return dbg.space();
 #else
     qWarning("This compiler doesn't support streaming QModelIndex to QDebug");
@@ -467,6 +467,37 @@ QAbstractItemModel *QAbstractItemModelPrivate::staticEmptyModel()
     return qEmptyModel();
 }
 
+/*!
+    \internal
+    return true if \a value contains a numerical type
+
+    This function is used by our Q{Tree,Widget,Table}WidgetModel classes to sort.
+    We cannot rely on QVariant::canConvert because this would take strings as double
+    and then not sort strings correctly
+*/
+bool QAbstractItemModelPrivate::canConvertToDouble(const QVariant &value)
+{
+    switch (value.userType()) {
+        case QVariant::Bool:
+        case QVariant::Int:
+        case QVariant::UInt:
+        case QVariant::LongLong:
+        case QVariant::ULongLong:
+        case QVariant::Double:
+        case QVariant::Char:
+        case QMetaType::Float:
+        case QMetaType::Short:
+        case QMetaType::UShort:
+        case QMetaType::UChar:
+        case QMetaType::ULong:
+        case QMetaType::Long:
+            return true;
+        default:
+            return false;
+    }
+    return false;
+}
+
 void QAbstractItemModelPrivate::removePersistentIndexData(QPersistentModelIndexData *data)
 {
     if (data->index.isValid()) {
@@ -525,7 +556,7 @@ void QAbstractItemModelPrivate::rowsInserted(const QModelIndex &parent,
         if (data->index.isValid()) {
             persistent.insertMultiAtEnd(data->index, data);
         } else {
-            qWarning() << "QAbstractItemModel::endInsertRows:  Invalid index (" << old.row() + count << "," << old.column() << ") in model" << q_func();
+            qWarning() << "QAbstractItemModel::endInsertRows:  Invalid index (" << old.row() + count << ',' << old.column() << ") in model" << q_func();
         }
     }
 }
@@ -574,7 +605,7 @@ void QAbstractItemModelPrivate::rowsRemoved(const QModelIndex &parent,
         if (data->index.isValid()) {
             persistent.insertMultiAtEnd(data->index, data);
         } else {
-            qWarning() << "QAbstractItemModel::endRemoveRows:  Invalid index (" << old.row() - count << "," << old.column() << ") in model" << q_func();
+            qWarning() << "QAbstractItemModel::endRemoveRows:  Invalid index (" << old.row() - count << ',' << old.column() << ") in model" << q_func();
         }
     }
     QVector<QPersistentModelIndexData *> persistent_invalidated = persistent.invalidated.pop();
@@ -619,7 +650,7 @@ void QAbstractItemModelPrivate::columnsInserted(const QModelIndex &parent,
         if (data->index.isValid()) {
             persistent.insertMultiAtEnd(data->index, data);
         } else {
-            qWarning() << "QAbstractItemModel::endInsertColumns:  Invalid index (" << old.row() << "," << old.column() + count << ") in model" << q_func();
+            qWarning() << "QAbstractItemModel::endInsertColumns:  Invalid index (" << old.row() << ',' << old.column() + count << ") in model" << q_func();
         }
      }
 }
@@ -669,7 +700,7 @@ void QAbstractItemModelPrivate::columnsRemoved(const QModelIndex &parent,
         if (data->index.isValid()) {
             persistent.insertMultiAtEnd(data->index, data);
         } else {
-            qWarning() << "QAbstractItemModel::endRemoveColumns:  Invalid index (" << old.row() << "," << old.column() - count << ") in model" << q_func();
+            qWarning() << "QAbstractItemModel::endRemoveColumns:  Invalid index (" << old.row() << ',' << old.column() - count << ") in model" << q_func();
         }
     }
     QVector<QPersistentModelIndexData *> persistent_invalidated = persistent.invalidated.pop();
diff --git a/src/corelib/kernel/qabstractitemmodel_p.h b/src/corelib/kernel/qabstractitemmodel_p.h
index df1a6ce..70c35cb 100644
--- a/src/corelib/kernel/qabstractitemmodel_p.h
+++ b/src/corelib/kernel/qabstractitemmodel_p.h
@@ -61,7 +61,7 @@
 
 QT_BEGIN_NAMESPACE
 
-class Q_CORE_EXPORT QPersistentModelIndexData
+class QPersistentModelIndexData
 {
 public:
     QPersistentModelIndexData() : model(0) {}
@@ -89,6 +89,7 @@ public:
     void columnsAboutToBeRemoved(const QModelIndex &parent, int first, int last);
     void columnsRemoved(const QModelIndex &parent, int first, int last);
     static QAbstractItemModel *staticEmptyModel();
+    static bool canConvertToDouble(const QVariant &value);
 
     inline QModelIndex createIndex(int row, int column, void *data = 0) const {
         return q_func()->createIndex(row, column, data);
diff --git a/src/corelib/kernel/qcoreapplication.cpp b/src/corelib/kernel/qcoreapplication.cpp
index 5c3fd76..4fbd63c 100644
--- a/src/corelib/kernel/qcoreapplication.cpp
+++ b/src/corelib/kernel/qcoreapplication.cpp
@@ -420,12 +420,12 @@ QString qAppName()
     QLibrary) can be retrieved with libraryPaths() and manipulated by
     setLibraryPaths(), addLibraryPath(), and removeLibraryPath().
 
-	On Unix/Linux Qt is configured to use the system local settings by 
-	default. This can cause a conflict when using POSIX functions, for 
-	instance, when converting between data types such as floats and 
-	strings, since the notation may differ between locales. To get 
-	around this problem call the POSIX function setlocale(LC_NUMERIC,"C") 
-	right after initializing QApplication or QCoreApplication to reset 
+	On Unix/Linux Qt is configured to use the system local settings by
+	default. This can cause a conflict when using POSIX functions, for
+	instance, when converting between data types such as floats and
+	strings, since the notation may differ between locales. To get
+	around this problem call the POSIX function setlocale(LC_NUMERIC,"C")
+	right after initializing QApplication or QCoreApplication to reset
 	the locale that is used for number formatting to "C"-locale.
 
     \sa QApplication, QAbstractEventDispatcher, QEventLoop,
@@ -613,6 +613,20 @@ void QCoreApplication::setAttribute(Qt::ApplicationAttribute attribute, bool on)
         QCoreApplicationPrivate::attribs |= 1 << attribute;
     else
         QCoreApplicationPrivate::attribs &= ~(1 << attribute);
+#ifdef Q_OS_MAC
+    // Turn on the no native menubar here, since we used to
+    // do this implicitly. We DO NOT flip it off if someone sets
+    // it to false.
+    // Ideally, we'd have magic that would be something along the lines of
+    // "follow MacPluginApplication" unless explicitly set.
+    // Considering this attribute isn't only at the beginning
+    // it's unlikely it will ever be a problem, but I want
+    // to have the behavior documented here.
+    if (attribute == Qt::AA_MacPluginApplication && on
+          && !testAttribute(Qt::AA_DontUseNativeMenuBar)) {
+        setAttribute(Qt::AA_DontUseNativeMenuBar, true);
+    }
+#endif
 }
 
 /*!
@@ -1880,7 +1894,7 @@ QString QCoreApplication::applicationFilePath()
         */
         QByteArray pEnv = qgetenv("PATH");
         QDir currentDir = QDir::current();
-        QStringList paths = QString::fromLocal8Bit(pEnv.constData()).split(QLatin1String(":"));
+        QStringList paths = QString::fromLocal8Bit(pEnv.constData()).split(QLatin1Char(':'));
         for (QStringList::const_iterator p = paths.constBegin(); p != paths.constEnd(); ++p) {
             if ((*p).isEmpty())
                 continue;
@@ -1990,7 +2004,7 @@ QStringList QCoreApplication::arguments()
     wchar_t tempFilename[MAX_PATH+1];
     if (GetModuleFileNameW(0, tempFilename, MAX_PATH)) {
         tempFilename[MAX_PATH] = 0;
-        cmdline.prepend(QString(QLatin1String("\"")) + QString::fromUtf16((unsigned short *)tempFilename) + QString(QLatin1String("\" ")));
+        cmdline.prepend(QLatin1Char('\"') + QString::fromUtf16((unsigned short *)tempFilename) + QLatin1String("\" "));
     }
 #endif // Q_OS_WINCE
 
@@ -2004,8 +2018,7 @@ QStringList QCoreApplication::arguments()
                 l1arg == "-qdebug" ||
                 l1arg == "-reverse" ||
                 l1arg == "-stylesheet" ||
-                l1arg == "-widgetcount" ||
-                l1arg == "-direct3d")
+                l1arg == "-widgetcount")
                 ;
             else if (l1arg.startsWith("-style="))
                 ;
diff --git a/src/corelib/kernel/qcoreapplication_win.cpp b/src/corelib/kernel/qcoreapplication_win.cpp
index 225821f..9c1c235 100644
--- a/src/corelib/kernel/qcoreapplication_win.cpp
+++ b/src/corelib/kernel/qcoreapplication_win.cpp
@@ -51,12 +51,11 @@
 
 QT_BEGIN_NAMESPACE
 
-// ############### DON'T EXPORT HERE!!!
-Q_CORE_EXPORT char         appFileName[MAX_PATH+1];                // application file name
-Q_CORE_EXPORT char         theAppName[MAX_PATH+1];                        // application name
-Q_CORE_EXPORT HINSTANCE appInst        = 0;                // handle to app instance
-Q_CORE_EXPORT HINSTANCE appPrevInst        = 0;                // handle to prev app instance
-Q_CORE_EXPORT int appCmdShow = 0;
+char         appFileName[MAX_PATH+1];                // application file name
+char         theAppName[MAX_PATH+1];                        // application name
+HINSTANCE appInst        = 0;                // handle to app instance
+HINSTANCE appPrevInst        = 0;                // handle to prev app instance
+int appCmdShow = 0;
 bool usingWinMain = false;  // whether the qWinMain() is used or not
 
 Q_CORE_EXPORT HINSTANCE qWinAppInst()                // get Windows app handle
@@ -69,6 +68,12 @@ Q_CORE_EXPORT HINSTANCE qWinAppPrevInst()                // get Windows prev app
     return appPrevInst;
 }
 
+Q_CORE_EXPORT int qWinAppCmdShow()                        // get main window show command
+{
+    return appCmdShow;
+}
+
+
 void set_winapp_name()
 {
     static bool already_set = false;
@@ -89,6 +94,14 @@ void set_winapp_name()
         int l = qstrlen(theAppName);
         if ((l > 4) && !qstricmp(theAppName + l - 4, ".exe"))
             theAppName[l-4] = '\0';                // drop .exe extension
+
+        if (appInst == 0) {
+            QT_WA({
+                appInst = GetModuleHandle(0);
+            }, {
+                appInst = GetModuleHandleA(0);
+            });
+        }
     }
 }
 
@@ -134,11 +147,11 @@ Q_CORE_EXPORT void qWinMsgHandler(QtMsgType t, const char* str)
     staticCriticalSection.lock();
     QT_WA({
         QString s(QString::fromLocal8Bit(str));
-        s += QLatin1String("\n");
+        s += QLatin1Char('\n');
         OutputDebugStringW((TCHAR*)s.utf16());
     }, {
         QByteArray s(str);
-        s += "\n";
+        s += '\n';
         OutputDebugStringA(s.data());
     })
     staticCriticalSection.unlock();
@@ -173,14 +186,14 @@ void qWinMain(HINSTANCE instance, HINSTANCE prevInstance, LPSTR cmdParam,
 
   // Create command line
 
-    set_winapp_name();
-
     argv = qWinCmdLine<char>(cmdParam, int(strlen(cmdParam)), argc);
     // Get Windows parameters
 
     appInst = instance;
     appPrevInst = prevInstance;
     appCmdShow = cmdShow;
+
+    set_winapp_name();
 }
 
 /*!
@@ -396,6 +409,7 @@ struct {
  { 0x020B, "WM_XBUTTONDOWN" },
  { 0x020C, "WM_XBUTTONUP" },
  { 0x020D, "WM_XBUTTONDBLCLK" },
+ { 0x020E, "WM_MOUSEHWHEEL" },
  { 0x0210, "WM_PARENTNOTIFY" },
  { 0x0211, "WM_ENTERMENULOOP" },
  { 0x0212, "WM_EXITMENULOOP" },
@@ -618,7 +632,7 @@ QString valueCheck(uint actual, ...)
 
 #ifdef Q_CC_BOR
 
-Q_CORE_EXPORT QString decodeMSG(const MSG& msg)
+QString decodeMSG(const MSG& msg)
 {
     return QString::fromLatin1("THis is not supported on Borland");
 }
@@ -827,7 +841,7 @@ QString decodeMSG(const MSG& msg)
                                              FLGSTR(ISC_SHOWUICANDIDATEWINDOW << 2),
                                              FLGSTR(ISC_SHOWUICANDIDATEWINDOW << 3),
                                              FLAG_STRING());
-                parameters.sprintf("Input context(%s) Show flags(%s)", (fSet?"Active":"Inactive"), showFlgs.toLatin1().data());
+                parameters.sprintf("Input context(%s) Show flags(%s)", (fSet? "Active" : "Inactive"), showFlgs.toLatin1().data());
             }
             break;
 #endif
@@ -885,6 +899,9 @@ QString decodeMSG(const MSG& msg)
 #ifdef WM_MOUSEWHEEL
         case WM_MOUSEWHEEL:
 #endif
+#ifdef WM_MOUSEHWHEEL
+        case WM_MOUSEHWHEEL:
+#endif
 #ifdef WM_LBUTTONDBLCLK
         case WM_LBUTTONDBLCLK:
 #endif
diff --git a/src/corelib/kernel/qcoreevent.cpp b/src/corelib/kernel/qcoreevent.cpp
index e0be174..6d26db6 100644
--- a/src/corelib/kernel/qcoreevent.cpp
+++ b/src/corelib/kernel/qcoreevent.cpp
@@ -266,6 +266,8 @@ QT_BEGIN_NAMESPACE
     \omitvalue NetworkReplyUpdated
     \omitvalue FutureCallOut
     \omitvalue CocoaRequestModal
+    \omitvalue Wrapped
+    \omitvalue Signal
 */
 
 /*!
diff --git a/src/corelib/kernel/qcoreevent.h b/src/corelib/kernel/qcoreevent.h
index d229ac9..1dd2ee4 100644
--- a/src/corelib/kernel/qcoreevent.h
+++ b/src/corelib/kernel/qcoreevent.h
@@ -44,6 +44,7 @@
 
 #include <QtCore/qnamespace.h>
 #include <QtCore/qbytearray.h>
+#include <QtCore/qobjectdefs.h>
 
 QT_BEGIN_HEADER
 
@@ -54,7 +55,9 @@ QT_MODULE(Core)
 class QEventPrivate;
 class Q_CORE_EXPORT QEvent           // event base class
 {
+    Q_GADGET
     QDOC_PROPERTY(bool accepted READ isAccepted WRITE setAccepted)
+    Q_ENUMS(Type)
 public:
     enum Type {
         /*
@@ -266,10 +269,12 @@ public:
         CocoaRequestModal = 190,                // Internal for requesting an application modal Cocoa Window
         MacGLClearDrawable = 191,               // Internal Cocoa, the window has changed, so we must clear
 
-        RequestSoftwareInputPanel = 192,
-        CloseSoftwareInputPanel = 193,
+        Signal = 192,
+        Wrapped = 193,
+        RequestSoftwareInputPanel = 194,
+        CloseSoftwareInputPanel = 195,
 
-        // 512 reserved for Qt Jambi's MetaCall event
+	// 512 reserved for Qt Jambi's MetaCall event
         // 513 reserved for Qt Jambi's DeleteOnMainThread event
 
         User = 1000,                            // first user event id
diff --git a/src/corelib/kernel/qeventdispatcher_unix.cpp b/src/corelib/kernel/qeventdispatcher_unix.cpp
index ea8299c..fe0db73 100644
--- a/src/corelib/kernel/qeventdispatcher_unix.cpp
+++ b/src/corelib/kernel/qeventdispatcher_unix.cpp
@@ -263,7 +263,7 @@ QTimerInfoList::QTimerInfoList()
 #  if (_POSIX_MONOTONIC_CLOCK == 0)
     // detect if the system support monotonic timers
     long x = sysconf(_SC_MONOTONIC_CLOCK);
-    useMonotonicTimers = x >= 200112L;
+    useMonotonicTimers = x != -1;
 #  endif
 
     getTime(currentTime);
diff --git a/src/corelib/kernel/qeventdispatcher_unix_p.h b/src/corelib/kernel/qeventdispatcher_unix_p.h
index 816add5..ac2de50 100644
--- a/src/corelib/kernel/qeventdispatcher_unix_p.h
+++ b/src/corelib/kernel/qeventdispatcher_unix_p.h
@@ -154,14 +154,14 @@ public:
     int activateTimers();
 };
 
-struct Q_CORE_EXPORT QSockNot
+struct QSockNot
 {
     QSocketNotifier *obj;
     int fd;
     fd_set *queue;
 };
 
-class Q_CORE_EXPORT QSockNotType
+class QSockNotType
 {
 public:
     QSockNotType();
diff --git a/src/corelib/kernel/qeventdispatcher_win.cpp b/src/corelib/kernel/qeventdispatcher_win.cpp
index c4061f4..7d3a13a 100644
--- a/src/corelib/kernel/qeventdispatcher_win.cpp
+++ b/src/corelib/kernel/qeventdispatcher_win.cpp
@@ -396,13 +396,6 @@ Q_CORE_EXPORT bool winPostMessage(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lPa
           { return PostMessageA(hWnd, msg, wParam, lParam); });
 }
 
-Q_CORE_EXPORT bool winGetMessage(MSG* msg, HWND hWnd, UINT wMsgFilterMin,
-                     UINT wMsgFilterMax)
-{
-    QT_WA({ return GetMessage(msg, hWnd, wMsgFilterMin, wMsgFilterMax); } ,
-          { return GetMessageA(msg, hWnd, wMsgFilterMin, wMsgFilterMax); });
-}
-
 // This function is called by a workerthread
 void WINAPI CALLBACK qt_fast_timer_proc(uint timerId, uint /*reserved*/, DWORD_PTR user, DWORD_PTR /*reserved*/, DWORD_PTR /*reserved*/)
 {
@@ -703,7 +696,8 @@ bool QEventDispatcherWin32::processEvents(QEventLoop::ProcessEventsFlags flags)
                          && msg.message <= WM_KEYLAST)
                         || (msg.message >= WM_MOUSEFIRST
                             && msg.message <= WM_MOUSELAST)
-                        || msg.message == WM_MOUSEWHEEL)) {
+                        || msg.message == WM_MOUSEWHEEL
+                        || msg.message == WM_MOUSEHWHEEL)) {
                     // queue user input events for later processing
                     haveMessage = false;
                     d->queuedUserInputEvents.append(msg);
diff --git a/src/corelib/kernel/qfunctions_wince.cpp b/src/corelib/kernel/qfunctions_wince.cpp
index 1c929c7..e0f7687 100644
--- a/src/corelib/kernel/qfunctions_wince.cpp
+++ b/src/corelib/kernel/qfunctions_wince.cpp
@@ -285,11 +285,6 @@ int qt_wince_SetErrorMode(int newValue)
     return result;
 }
 
-HRESULT qt_wince_CoInitialize(void* reserved)
-{
-    return CoInitializeEx(reserved, 0);
-}
-
 bool qt_wince__chmod(const char *file, int mode)
 {
     return _wchmod( reinterpret_cast<const wchar_t *> (QString::fromLatin1(file).utf16()), mode);
diff --git a/src/corelib/kernel/qfunctions_wince.h b/src/corelib/kernel/qfunctions_wince.h
index 123bd23..5f08bb3 100644
--- a/src/corelib/kernel/qfunctions_wince.h
+++ b/src/corelib/kernel/qfunctions_wince.h
@@ -199,7 +199,9 @@ int qt_wince__fstat( int handle, struct stat *buffer);
 #define SEM_FAILCRITICALERRORS 0x0001
 #define SEM_NOOPENFILEERRORBOX 0x0002
 int qt_wince_SetErrorMode(int);
-HRESULT qt_wince_CoInitialize(void* reserved);
+#ifndef CoInitialize
+#define CoInitialize(x) CoInitializeEx(x, COINIT_MULTITHREADED)
+#endif
 
 bool qt_wince__chmod(const char *file, int mode);
 bool qt_wince__wchmod(const WCHAR *file, int mode);
@@ -376,7 +378,6 @@ typedef DWORD OLE_COLOR;
 #define _rename(a,b)            qt_wince__rename(a,b)
 #define _remove(a)              qt_wince__remove(a)
 #define SetErrorMode(a)         qt_wince_SetErrorMode(a)
-#define CoInitialize(a)         qt_wince_CoInitialize(a)
 #define _chmod(a,b)             qt_wince__chmod(a,b)
 #define _wchmod(a,b)            qt_wince__wchmod(a,b)
 #define CreateFileA(a,b,c,d,e,f,g) qt_wince_CreateFileA(a,b,c,d,e,f,g)
diff --git a/src/corelib/kernel/qmetaobject.cpp b/src/corelib/kernel/qmetaobject.cpp
index b65f956..6f3316c 100644
--- a/src/corelib/kernel/qmetaobject.cpp
+++ b/src/corelib/kernel/qmetaobject.cpp
@@ -2003,6 +2003,11 @@ QVariant::Type QMetaProperty::type() const
         if (enumMetaTypeId == 0)
             return QVariant::Int;
     }
+#ifdef QT_COORD_TYPE
+    // qreal metatype must be resolved at runtime.
+    if (strcmp(typeName(), "qreal") == 0)
+        return QVariant::Type(qMetaTypeId<qreal>());
+#endif
 
     return QVariant::UserType;
 }
diff --git a/src/corelib/kernel/qmetatype.cpp b/src/corelib/kernel/qmetatype.cpp
index ce10bae..6b40f46 100644
--- a/src/corelib/kernel/qmetatype.cpp
+++ b/src/corelib/kernel/qmetatype.cpp
@@ -179,6 +179,7 @@ QT_BEGIN_NAMESPACE
     \omitvalue LastCoreExtType
     \omitvalue LastCoreType
     \omitvalue LastGuiType
+    \omitvalue QReal
 
     Additional types can be registered using Q_DECLARE_METATYPE().
 
@@ -359,7 +360,7 @@ void QMetaType::registerStreamOperators(const char *typeName, SaveOperator saveO
     inf.saveOp = saveOp;
     inf.loadOp = loadOp;
 }
-#endif
+#endif // QT_NO_DATASTREAM
 
 /*!
     Returns the type name associated with the given \a type, or 0 if no
@@ -884,7 +885,7 @@ bool QMetaType::load(QDataStream &stream, int type, void *data)
     }
     return true;
 }
-#endif
+#endif // QT_NO_DATASTREAM
 
 /*!
     Returns a copy of \a copy, assuming it is of type \a type. If \a
diff --git a/src/corelib/kernel/qmetatype.h b/src/corelib/kernel/qmetatype.h
index 648f933..687a070 100644
--- a/src/corelib/kernel/qmetatype.h
+++ b/src/corelib/kernel/qmetatype.h
@@ -86,6 +86,15 @@ public:
         UShort = 133, UChar = 134, Float = 135, QObjectStar = 136, QWidgetStar = 137,
         LastCoreExtType = 137 /* QWidgetStar */,
 
+// This logic must match the one in qglobal.h
+#if defined(QT_COORD_TYPE)
+        QReal = 0,
+#elif defined(QT_NO_FPU) || defined(QT_ARCH_ARM) || defined(QT_ARCH_WINDOWSCE) || defined(QT_ARCH_SYMBIAN)
+        QReal = Float,
+#else
+        QReal = Double,
+#endif
+
         User = 256
     };
 
@@ -174,7 +183,7 @@ void qRegisterMetaTypeStreamOperators(const char *typeName
     QMetaType::registerStreamOperators(typeName, reinterpret_cast<QMetaType::SaveOperator>(sptr),
                                        reinterpret_cast<QMetaType::LoadOperator>(lptr));
 }
-#endif
+#endif // QT_NO_DATASTREAM
 
 template <typename T>
 struct QMetaTypeId
diff --git a/src/corelib/kernel/qobject.cpp b/src/corelib/kernel/qobject.cpp
index ac505e1..eeb3550 100644
--- a/src/corelib/kernel/qobject.cpp
+++ b/src/corelib/kernel/qobject.cpp
@@ -58,6 +58,7 @@
 #include <qsemaphore.h>
 
 #include <private/qorderedmutexlocker_p.h>
+#include <private/qmutexpool_p.h>
 
 #include <new>
 
@@ -70,7 +71,7 @@ static int DIRECT_CONNECTION_ONLY = 0;
 
 static int *queuedConnectionTypes(const QList<QByteArray> &typeNames)
 {
-    int *types = static_cast<int *>(qMalloc((typeNames.count() + 1) * sizeof(int)));
+    int *types = new int [typeNames.count() + 1];
     for (int i = 0; i < typeNames.count(); ++i) {
         const QByteArray typeName = typeNames.at(i);
         if (typeName.endsWith('*'))
@@ -82,7 +83,7 @@ static int *queuedConnectionTypes(const QList<QByteArray> &typeNames)
             qWarning("QObject::connect: Cannot queue arguments of type '%s'\n"
                      "(Make sure '%s' is registered using qRegisterMetaType().)",
                      typeName.constData(), typeName.constData());
-            qFree(types);
+            delete [] types;
             return 0;
         }
     }
@@ -91,16 +92,38 @@ static int *queuedConnectionTypes(const QList<QByteArray> &typeNames)
     return types;
 }
 
+static QBasicAtomicPointer<QMutexPool> signalSlotMutexes = Q_BASIC_ATOMIC_INITIALIZER(0);
+static QBasicAtomicInt objectCount = Q_BASIC_ATOMIC_INITIALIZER(0);
+
+/** \internal
+ * mutex to be locked when accessing the connectionlists or the senders list
+ */
+static QMutex *signalSlotLock(const QObject *o)
+{
+    if (!signalSlotMutexes) {
+        QMutexPool *mp = new QMutexPool;
+        if (!signalSlotMutexes.testAndSetOrdered(0, mp)) {
+            delete mp;
+        }
+    }
+    return signalSlotMutexes->get(o);
+}
+
 extern "C" Q_CORE_EXPORT void qt_addObject(QObject *)
 {
+    objectCount.ref();
 }
 
 extern "C" Q_CORE_EXPORT void qt_removeObject(QObject *)
 {
+    if(!objectCount.deref()) {
+        QMutexPool *old = signalSlotMutexes.fetchAndStoreAcquire(0);
+        delete old;
+    }
 }
 
 QObjectPrivate::QObjectPrivate(int version)
-    : threadData(0), currentSender(0), currentChildBeingDeleted(0), connectionLists(0)
+    : threadData(0), currentSender(0), currentChildBeingDeleted(0), connectionLists(0), senders(0)
 {
     if (version != QObjectPrivateVersion)
         qFatal("Cannot mix incompatible Qt libraries");
@@ -120,6 +143,7 @@ QObjectPrivate::QObjectPrivate(int version)
     inEventHandler = false;
     inThreadChangeEvent = false;
     deleteWatch = 0;
+    hasGuards = false;
 }
 
 QObjectPrivate::~QObjectPrivate()
@@ -216,19 +240,20 @@ public:
     }
 };
 
+// Used by QAccessibleWidget
 bool QObjectPrivate::isSender(const QObject *receiver, const char *signal) const
 {
     Q_Q(const QObject);
     int signal_index = q->metaObject()->indexOfSignal(signal);
     if (signal_index < 0)
         return false;
-    QMutexLocker locker(&threadData->mutex);
+    QMutexLocker locker(signalSlotLock(q));
     if (connectionLists) {
         if (signal_index < connectionLists->count()) {
             const ConnectionList &connectionList = connectionLists->at(signal_index);
             for (int i = 0; i < connectionList.count(); ++i) {
-                const QObjectPrivate::Connection &c = connectionList.at(i);
-                if (c.receiver && c.receiver == receiver)
+                const QObjectPrivate::Connection *c = connectionList.at(i);
+                if (c->receiver == receiver)
                     return true;
             }
         }
@@ -236,6 +261,7 @@ bool QObjectPrivate::isSender(const QObject *receiver, const char *signal) const
     return false;
 }
 
+// Used by QAccessibleWidget
 QObjectList QObjectPrivate::receiverList(const char *signal) const
 {
     Q_Q(const QObject);
@@ -243,26 +269,27 @@ QObjectList QObjectPrivate::receiverList(const char *signal) const
     int signal_index = q->metaObject()->indexOfSignal(signal);
     if (signal_index < 0)
         return returnValue;
-    QMutexLocker locker(&threadData->mutex);
+    QMutexLocker locker(signalSlotLock(q));
     if (connectionLists) {
         if (signal_index < connectionLists->count()) {
             const ConnectionList &connectionList = connectionLists->at(signal_index);
             for (int i = 0; i < connectionList.count(); ++i) {
-                const QObjectPrivate::Connection &c = connectionList.at(i);
-                if (c.receiver)
-                    returnValue << c.receiver;
+                const QObjectPrivate::Connection *c = connectionList.at(i);
+                if (c->receiver)
+                    returnValue << c->receiver;
             }
         }
     }
     return returnValue;
 }
 
+// Used by QAccessibleWidget
 QObjectList QObjectPrivate::senderList() const
 {
     QObjectList returnValue;
-    QMutexLocker locker(&threadData->mutex);
-    for (int i = 0; i < senders.count(); ++i)
-        returnValue << senders.at(i).sender;
+    QMutexLocker locker(signalSlotLock(q_func()));
+    for (Connection *c = senders; c; c = c->next)
+        returnValue << c->sender;
     return returnValue;
 }
 
@@ -274,33 +301,10 @@ void QObjectPrivate::addConnection(int signal, Connection *c)
         connectionLists->resize(signal + 1);
 
     ConnectionList &connectionList = (*connectionLists)[signal];
-    connectionList.append(*c);
-
+    connectionList.append(c);
     cleanConnectionLists();
 }
 
-void QObjectPrivate::removeReceiver(int signal, QObject *receiver)
-{
-    if (!connectionLists)
-        return;
-
-    if (signal >= connectionLists->count())
-        return;
-
-    ConnectionList &connectionList = (*connectionLists)[signal];
-    for (int i = 0; i < connectionList.count(); ++i) {
-        Connection &c = connectionList[i];
-        if (c.receiver == receiver) {
-            c.receiver = 0;
-            if (c.argumentTypes && c.argumentTypes != &DIRECT_CONNECTION_ONLY) {
-                qFree(c.argumentTypes);
-                c.argumentTypes = 0;
-            }
-            connectionLists->dirty = true;
-        }
-    }
-}
-
 void QObjectPrivate::cleanConnectionLists()
 {
     if (connectionLists->dirty && !connectionLists->inUse) {
@@ -308,43 +312,17 @@ void QObjectPrivate::cleanConnectionLists()
         for (int signal = -1; signal < connectionLists->count(); ++signal) {
             QObjectPrivate::ConnectionList &connectionList = (*connectionLists)[signal];
             for (int i = 0; i < connectionList.count(); ++i) {
-                const QObjectPrivate::Connection &c = connectionList.at(i);
-                if (!c.receiver)
+                QObjectPrivate::Connection *c = connectionList.at(i);
+                if (!c->receiver) {
+                    delete c;
                     connectionList.removeAt(i--);
+                }
             }
         }
         connectionLists->dirty = false;
     }
 }
 
-void QObjectPrivate::refSender(QObject *sender, int signal)
-{
-    for (int i = 0; i < senders.count(); ++i) {
-        Sender &s = senders[i];
-        if (s.sender == sender && s.signal == signal) {
-            ++s.ref;
-            return;
-        }
-    }
-
-    Sender s = { sender, signal, 1 };
-    senders.append(s);
-}
-
-void QObjectPrivate::derefSender(QObject *sender, int signal)
-{
-    for (int i = 0; i < senders.count(); ++i) {
-        Sender &s = senders[i];
-        if (s.sender == sender && s.signal == signal) {
-            if (--s.ref == 0) {
-                senders.removeAt(i);
-                break;
-            }
-        }
-    }
-    // Q_ASSERT_X(false, "QObjectPrivate::derefSender", "sender not found");
-}
-
 QObjectPrivate::Sender *QObjectPrivate::setCurrentSender(QObject *receiver,
                                                          Sender *sender)
 {
@@ -382,6 +360,7 @@ void QMetaObject::addGuard(QObject **ptr)
         return;
     }
     QMutexLocker locker(guardHashLock());
+    QObjectPrivate::get(*ptr)->hasGuards = true;
     hash->insert(*ptr, ptr);
 }
 
@@ -399,12 +378,17 @@ void QMetaObject::removeGuard(QObject **ptr)
     QMutexLocker locker(guardHashLock());
     GuardHash::iterator it = hash->find(*ptr);
     const GuardHash::iterator end = hash->end();
+    bool more = false; //if the QObject has more pointer attached to it.
     for (; it.key() == *ptr && it != end; ++it) {
         if (it.value() == ptr) {
-            (void) hash->erase(it);
+            it = hash->erase(it);
+            if (!more) more = (it != end && it.key() == *ptr);
             break;
         }
+        more = true;
     }
+    if (!more)
+        QObjectPrivate::get(*ptr)->hasGuards = false;
 }
 
 /*!\internal
@@ -418,24 +402,33 @@ void QMetaObject::changeGuard(QObject **ptr, QObject *o)
     }
     QMutexLocker locker(guardHashLock());
     if (*ptr) {
+        bool more = false; //if the QObject has more pointer attached to it.
         GuardHash::iterator it = hash->find(*ptr);
         const GuardHash::iterator end = hash->end();
         for (; it.key() == *ptr && it != end; ++it) {
             if (it.value() == ptr) {
-                (void) hash->erase(it);
+                it = hash->erase(it);
+                if (!more) more = (it != end && it.key() == *ptr);
                 break;
             }
+            more = true;
         }
+        if (!more)
+            QObjectPrivate::get(*ptr)->hasGuards = false;
     }
     *ptr = o;
-    if (*ptr)
+    if (*ptr) {
         hash->insert(*ptr, ptr);
+        QObjectPrivate::get(*ptr)->hasGuards = true;
+    }
 }
 
 /*! \internal
  */
 void QObjectPrivate::clearGuards(QObject *object)
 {
+    if (!QObjectPrivate::get(object)->hasGuards)
+        return;
     GuardHash *hash = 0;
     QMutex *mutex = 0;
     QT_TRY {
@@ -776,7 +769,7 @@ QObject::~QObject()
     }
 
     {
-        QMutexLocker locker(&d->threadData->mutex);
+        QMutexLocker locker(signalSlotLock(this));
 
         // set ref to zero to indicate that this object has been deleted
         if (d->currentSender != 0)
@@ -789,23 +782,23 @@ QObject::~QObject()
             for (int signal = -1; signal < d->connectionLists->count(); ++signal) {
                 QObjectPrivate::ConnectionList &connectionList = (*d->connectionLists)[signal];
                 for (int i = 0; i < connectionList.count(); ++i) {
-                    QObjectPrivate::Connection *c = &connectionList[i];
-                    if (!c->receiver)
+                    QObjectPrivate::Connection *c = connectionList[i];
+                    if (!c->receiver) {
+                        delete c;
                         continue;
+                    }
 
-                    QMutex *m = &c->receiver->d_func()->threadData->mutex;
+                    QMutex *m = signalSlotLock(c->receiver);
                     bool needToUnlock = QOrderedMutexLocker::relock(locker.mutex(), m);
-                    c = &connectionList[i];
-                    if (c->receiver)
-                        c->receiver->d_func()->derefSender(this, signal);
+                    c = connectionList[i];
+                    if (c->receiver) {
+                        *c->prev = c->next;
+                        if (c->next) c->next->prev = c->prev;
+                    }
                     if (needToUnlock)
                         m->unlock();
 
-                    if (c->argumentTypes && c->argumentTypes != &DIRECT_CONNECTION_ONLY) {
-                        qFree(c->argumentTypes);
-                        c->argumentTypes = 0;
-                    }
-                    c->receiver = 0;
+                    delete c;
                 }
             }
 
@@ -818,25 +811,25 @@ QObject::~QObject()
         }
 
         // disconnect all senders
-        for (int i = 0; i < d->senders.count(); ) {
-            QObjectPrivate::Sender *s = &d->senders[i];
-
-            QMutex *m = &s->sender->d_func()->threadData->mutex;
+        QObjectPrivate::Connection *node = d->senders;
+        while (node) {
+            QMutex *m = signalSlotLock(node->sender);
+            node->prev = &node;
             bool needToUnlock = QOrderedMutexLocker::relock(locker.mutex(), m);
-            if (m < locker.mutex()) {
-                if (i >= d->senders.count() || s != &d->senders[i]) {
-                    if (needToUnlock)
-                        m->unlock();
-                    continue;
-                }
+            //the node has maybe been removed while the mutex was unlocked in relock?
+            if (!node || signalSlotLock(node->sender) != m) {
+                m->unlock();
+                continue;
             }
-            s->sender->d_func()->removeReceiver(s->signal, this);
+            node->receiver = 0;
+            QObjectConnectionListVector *senderLists = node->sender->d_func()->connectionLists;
+            if (senderLists)
+                senderLists->dirty = true;
+
             if (needToUnlock)
                 m->unlock();
-            ++i;
+            node = node->next;
         }
-
-        d->senders.clear();
     }
 
     if (d->pendTimer) {
@@ -874,6 +867,12 @@ QObject::~QObject()
 #endif
 }
 
+QObjectPrivate::Connection::~Connection()
+{
+    if (argumentTypes != &DIRECT_CONNECTION_ONLY)
+        delete [] argumentTypes;
+}
+
 
 /*!
     \fn QMetaObject *QObject::metaObject() const
@@ -2261,11 +2260,11 @@ static void err_method_notfound(const QObject *object,
     if (strchr(method,')') == 0)                // common typing mistake
         qWarning("Object::%s: Parentheses expected, %s %s::%s%s%s",
                  func, type, object->metaObject()->className(), method+1,
-                 loc ? " in ":"\0", loc ? loc : "\0");
+                 loc ? " in ": "", loc ? loc : "");
     else
         qWarning("Object::%s: No such %s %s::%s%s%s",
                  func, type, object->metaObject()->className(), method+1,
-                 loc ? " in ":"\0", loc ? loc : "\0");
+                 loc ? " in ": "", loc ? loc : "");
 
 }
 
@@ -2308,14 +2307,14 @@ QObject *QObject::sender() const
 {
     Q_D(const QObject);
 
-    QMutexLocker(&d->threadData->mutex);
+    QMutexLocker(signalSlotLock(this));
     if (!d->currentSender)
         return 0;
 
     // Return 0 if d->currentSender isn't in d->senders
     bool found = false;
-    for (int i = 0; !found && i < d->senders.count(); ++i)
-        found = (d->senders.at(i).sender == d->currentSender->sender);
+    for (QObjectPrivate::Connection *c = d->senders; c && !found; c = c->next)
+        found = (c->sender == d->currentSender->sender);
     if (!found)
         return 0;
     return d->currentSender->sender;
@@ -2364,14 +2363,14 @@ int QObject::receivers(const char *signal) const
         }
 
         Q_D(const QObject);
-        QMutexLocker locker(&d->threadData->mutex);
+        QMutexLocker locker(signalSlotLock(this));
         if (d->connectionLists) {
             if (signal_index < d->connectionLists->count()) {
                 const QObjectPrivate::ConnectionList &connectionList =
                     d->connectionLists->at(signal_index);
                 for (int i = 0; i < connectionList.count(); ++i) {
-                    const QObjectPrivate::Connection &c = connectionList.at(i);
-                    receivers += c.receiver ? 1 : 0;
+                    const QObjectPrivate::Connection *c = connectionList.at(i);
+                    receivers += c->receiver ? 1 : 0;
                 }
             }
         }
@@ -2410,7 +2409,8 @@ int QObject::receivers(const char *signal) const
     can be connected to one slot.
 
     If a signal is connected to several slots, the slots are activated
-    in an arbitrary order when the signal is emitted.
+    in the same order as the order the connection was made, when the
+    signal is emitted.
 
     The function returns true if it successfully connects the signal
     to the slot. It will return false if it cannot create the
@@ -2418,9 +2418,13 @@ int QObject::receivers(const char *signal) const
     existence of either \a signal or \a method, or if their signatures
     aren't compatible.
 
-    For every connection you make, a signal is emitted; two signals are emitted
-    for duplicate connections. You can break all of these connections with a
-    single disconnect() call.
+    By default, a signal is emitted for every connection you make;
+    two signals are emitted for duplicate connections. You can break
+    all of these connections with a single disconnect() call.
+    If you pass the Qt::UniqueConnection \a type, the connection will only
+    be made if it is not a duplicate. If there is already a duplicate
+    (exact same signal to the exact same slot on the same objects),
+    the connection will fail and connect will return false
 
     The optional \a type parameter describes the type of connection
     to establish. In particular, it determines whether a particular
@@ -2553,7 +2557,8 @@ bool QObject::connect(const QObject *sender, const char *signal,
         }
     }
 #endif
-    QMetaObject::connect(sender, signal_index, receiver, method_index, type, types);
+    if (!QMetaObject::connect(sender, signal_index, receiver, method_index, type, types))
+        return false;
     const_cast<QObject*>(sender)->connectNotify(signal - 1);
     return true;
 }
@@ -2804,20 +2809,35 @@ bool QMetaObject::connect(const QObject *sender, int signal_index,
     QObject *s = const_cast<QObject *>(sender);
     QObject *r = const_cast<QObject *>(receiver);
 
-    QOrderedMutexLocker locker(&s->d_func()->threadData->mutex,
-                               &r->d_func()->threadData->mutex);
+    QOrderedMutexLocker locker(signalSlotLock(sender),
+                               signalSlotLock(receiver));
 
-#if defined(Q_CC_HPACC) && defined(QT_ARCH_PARISC)
-    QObjectPrivate::Connection c;
-    c.receiver = r;
-    c.method = method_index;
-    c.connectionType = type;
-    c.argumentTypes = types;
-#else
-    QObjectPrivate::Connection c = { r, method_index, type, Q_BASIC_ATOMIC_INITIALIZER(types) };
-#endif
-    s->d_func()->addConnection(signal_index, &c);
-    r->d_func()->refSender(s, signal_index);
+    if (type & Qt::UniqueConnection) {
+        QObjectConnectionListVector *connectionLists = s->d_func()->connectionLists;
+        if (connectionLists && connectionLists->count() > signal_index) {
+            QObjectPrivate::ConnectionList &connectionList = (*connectionLists)[signal_index];
+            for (int i = 0; i < connectionList.count(); ++i) {
+                QObjectPrivate::Connection *c2 = connectionList.at(i);
+                if (c2->receiver == receiver && c2->method == method_index)
+                    return false;
+            }
+        }
+        type &= Qt::UniqueConnection - 1;
+    }
+
+    QObjectPrivate::Connection *c = new QObjectPrivate::Connection;
+    c->sender = s;
+    c->receiver = r;
+    c->method = method_index;
+    c->connectionType = type;
+    c->argumentTypes = types;
+    c->prev = &r->d_func()->senders;
+    c->next = *c->prev;
+    *c->prev = c;
+    if (c->next)
+        c->next->prev = &c->next;
+
+    s->d_func()->addConnection(signal_index, c);
 
     if (signal_index < 0)
         sender->d_func()->connectedSignals = ~0u;
@@ -2839,8 +2859,8 @@ bool QMetaObject::disconnect(const QObject *sender, int signal_index,
     QObject *s = const_cast<QObject *>(sender);
     QObject *r = const_cast<QObject *>(receiver);
 
-    QMutex *senderMutex = &s->d_func()->threadData->mutex;
-    QMutex *receiverMutex = r ? &r->d_func()->threadData->mutex : 0;
+    QMutex *senderMutex = signalSlotLock(sender);
+    QMutex *receiverMutex = receiver ? signalSlotLock(receiver) : 0;
     QOrderedMutexLocker locker(senderMutex, receiverMutex);
 
     QObjectConnectionListVector *connectionLists = s->d_func()->connectionLists;
@@ -2856,27 +2876,25 @@ bool QMetaObject::disconnect(const QObject *sender, int signal_index,
         for (signal_index = -1; signal_index < connectionLists->count(); ++signal_index) {
             QObjectPrivate::ConnectionList &connectionList = (*connectionLists)[signal_index];
             for (int i = 0; i < connectionList.count(); ++i) {
-                QObjectPrivate::Connection *c = &connectionList[i];
+                QObjectPrivate::Connection *c = connectionList[i];
                 if (c->receiver
                     && (r == 0 || (c->receiver == r
                                    && (method_index < 0 || c->method == method_index)))) {
-                    QMutex *m = &c->receiver->d_func()->threadData->mutex;
+                    QMutex *m = signalSlotLock(c->receiver);
+                    bool needToUnlock = false;
                     if (!receiverMutex && senderMutex != m) {
                         // need to relock this receiver and sender in the correct order
-                        bool needToUnlock = QOrderedMutexLocker::relock(senderMutex, m);
-                        c = &connectionList[i];
-                        if (c->receiver)
-                            c->receiver->d_func()->derefSender(s, signal_index);
-                        if (needToUnlock)
-                            m->unlock();
-                    } else {
-                        // no need to unlock
-                        c->receiver->d_func()->derefSender(s, signal_index);
+                        needToUnlock = QOrderedMutexLocker::relock(senderMutex, m);
+                        c = connectionList[i];
                     }
-                    if (c->argumentTypes && c->argumentTypes != &DIRECT_CONNECTION_ONLY) {
-                        qFree(c->argumentTypes);
-                        c->argumentTypes = 0;
+                    if (c->receiver) {
+                        *c->prev = c->next;
+                        if (c->next) c->next->prev = c->prev;
                     }
+
+                    if (needToUnlock)
+                        m->unlock();
+
                     c->receiver = 0;
 
                     success = true;
@@ -2887,27 +2905,24 @@ bool QMetaObject::disconnect(const QObject *sender, int signal_index,
     } else if (signal_index < connectionLists->count()) {
         QObjectPrivate::ConnectionList &connectionList = (*connectionLists)[signal_index];
         for (int i = 0; i < connectionList.count(); ++i) {
-            QObjectPrivate::Connection *c = &connectionList[i];
+            QObjectPrivate::Connection *c = connectionList[i];
             if (c->receiver
                 && (r == 0 || (c->receiver == r
                                && (method_index < 0 || c->method == method_index)))) {
-                QMutex *m = &c->receiver->d_func()->threadData->mutex;
+                QMutex *m = signalSlotLock(c->receiver);
+                bool needToUnlock = false;
                 if (!receiverMutex && senderMutex != m) {
                     // need to relock this receiver and sender in the correct order
-                    bool needToUnlock = QOrderedMutexLocker::relock(senderMutex, m);
-                    c = &connectionList[i];
-                    if (c->receiver)
-                        c->receiver->d_func()->derefSender(s, signal_index);
-                    if (needToUnlock)
-                        m->unlock();
-                } else {
-                    // no need to unlock
-                    c->receiver->d_func()->derefSender(s, signal_index);
+                    needToUnlock = QOrderedMutexLocker::relock(senderMutex, m);
+                    c = connectionList[i];
                 }
-                if (c->argumentTypes && c->argumentTypes != &DIRECT_CONNECTION_ONLY) {
-                    qFree(c->argumentTypes);
-                    c->argumentTypes = 0;
+                if (c->receiver) {
+                    *c->prev = c->next;
+                    if (c->next) c->next->prev = c->prev;
                 }
+
+                if (needToUnlock)
+                    m->unlock();
                 c->receiver = 0;
 
                 success = true;
@@ -2990,32 +3005,31 @@ void QMetaObject::connectSlotsByName(QObject *o)
     }
 }
 
-static void queued_activate(QObject *sender, int signal, const QObjectPrivate::Connection &c,
+static void queued_activate(QObject *sender, int signal, QObjectPrivate::Connection *c,
                             void **argv, QSemaphore *semaphore = 0)
 {
-    if (!c.argumentTypes || c.argumentTypes != &DIRECT_CONNECTION_ONLY) {
+    if (!c->argumentTypes && c->argumentTypes != &DIRECT_CONNECTION_ONLY) {
         QMetaMethod m = sender->metaObject()->method(signal);
-        QObjectPrivate::Connection &x = const_cast<QObjectPrivate::Connection &>(c);
         int *tmp = queuedConnectionTypes(m.parameterTypes());
         if (!tmp) // cannot queue arguments
             tmp = &DIRECT_CONNECTION_ONLY;
-        if (!x.argumentTypes.testAndSetOrdered(0, tmp)) {
+        if (!c->argumentTypes.testAndSetOrdered(0, tmp)) {
             if (tmp != &DIRECT_CONNECTION_ONLY)
-                qFree(tmp);
+                delete [] tmp;
         }
     }
-    if (c.argumentTypes == &DIRECT_CONNECTION_ONLY) // cannot activate
+    if (c->argumentTypes == &DIRECT_CONNECTION_ONLY) // cannot activate
         return;
     int nargs = 1; // include return type
-    while (c.argumentTypes[nargs-1])
+    while (c->argumentTypes[nargs-1])
         ++nargs;
     int *types = (int *) qMalloc(nargs*sizeof(int));
     void **args = (void **) qMalloc(nargs*sizeof(void *));
     types[0] = 0; // return type
     args[0] = 0; // return value
     for (int n = 1; n < nargs; ++n)
-        args[n] = QMetaType::construct((types[n] = c.argumentTypes[n-1]), argv[n]);
-    QCoreApplication::postEvent(c.receiver, new QMetaCallEvent(c.method,
+        args[n] = QMetaType::construct((types[n] = c->argumentTypes[n-1]), argv[n]);
+    QCoreApplication::postEvent(c->receiver, new QMetaCallEvent(c->method,
                                                                sender,
                                                                signal,
                                                                nargs,
@@ -3024,13 +3038,13 @@ static void queued_activate(QObject *sender, int signal, const QObjectPrivate::C
                                                                semaphore));
 }
 
-static void blocking_activate(QObject *sender, int signal, const QObjectPrivate::Connection &c, void **argv)
+static void blocking_activate(QObject *sender, int signal, QObjectPrivate::Connection *c, void **argv)
 {
-    if (QThread::currentThread() == c.receiver->thread()) {
+    if (QThread::currentThread() == c->receiver->thread()) {
         qWarning("Qt: Dead lock detected while activating a BlockingQueuedConnection: "
                  "Sender is %s(%p), receiver is %s(%p)",
                  sender->metaObject()->className(), sender,
-                 c.receiver->metaObject()->className(), c.receiver);
+                 c->receiver->metaObject()->className(), c->receiver);
     }
 
 #ifdef QT_NO_THREAD
@@ -3038,7 +3052,7 @@ static void blocking_activate(QObject *sender, int signal, const QObjectPrivate:
 #else
     QSemaphore semaphore;
     queued_activate(sender, signal, c, argv, &semaphore);
-    QMutex *mutex = &QThreadData::get2(sender->thread())->mutex;
+    QMutex *mutex = signalSlotLock(sender);
     mutex->unlock();
     semaphore.acquire();
     mutex->lock();
@@ -3058,7 +3072,7 @@ void QMetaObject::activate(QObject *sender, int from_signal_index, int to_signal
                                                          argv ? argv : empty_argv);
     }
 
-    QMutexLocker locker(&sender->d_func()->threadData->mutex);
+    QMutexLocker locker(signalSlotLock(sender));
     QThreadData *currentThreadData = QThreadData::current();
 
     QObjectConnectionListVector *connectionLists = sender->d_func()->connectionLists;
@@ -3080,7 +3094,7 @@ void QMetaObject::activate(QObject *sender, int from_signal_index, int to_signal
         }
         int count = connectionLists->at(signal).count();
         for (int i = 0; i < count; ++i) {
-            const QObjectPrivate::Connection *c = &connectionLists->at(signal)[i];
+            QObjectPrivate::Connection *c = connectionLists->at(signal)[i];
             if (!c->receiver)
                 continue;
 
@@ -3092,10 +3106,10 @@ void QMetaObject::activate(QObject *sender, int from_signal_index, int to_signal
                  && (currentThreadData != sender->d_func()->threadData
                      || receiver->d_func()->threadData != sender->d_func()->threadData))
                 || (c->connectionType == Qt::QueuedConnection)) {
-                queued_activate(sender, signal, *c, argv);
+                queued_activate(sender, signal, c, argv);
                 continue;
             } else if (c->connectionType == Qt::BlockingQueuedConnection) {
-                blocking_activate(sender, signal, *c, argv);
+                blocking_activate(sender, signal, c, argv);
                 continue;
             }
 
@@ -3410,7 +3424,7 @@ void QObject::dumpObjectInfo()
            objectName().isEmpty() ? "unnamed" : objectName().toLocal8Bit().data());
 
     Q_D(QObject);
-    QMutexLocker locker(&d->threadData->mutex);
+    QMutexLocker locker(signalSlotLock(this));
 
     // first, look for connections where this object is the sender
     qDebug("  SIGNALS OUT");
@@ -3423,16 +3437,16 @@ void QObject::dumpObjectInfo()
             // receivers
             const QObjectPrivate::ConnectionList &connectionList = d->connectionLists->at(signal_index);
             for (int i = 0; i < connectionList.count(); ++i) {
-                const QObjectPrivate::Connection &c = connectionList.at(i);
-                if (!c.receiver) {
+                const QObjectPrivate::Connection *c = connectionList.at(i);
+                if (!c->receiver) {
                     qDebug("          <Disconnected receiver>");
                     continue;
                 }
-                const QMetaObject *receiverMetaObject = c.receiver->metaObject();
-                const QMetaMethod method = receiverMetaObject->method(c.method);
+                const QMetaObject *receiverMetaObject = c->receiver->metaObject();
+                const QMetaMethod method = receiverMetaObject->method(c->method);
                 qDebug("          --> %s::%s %s",
                        receiverMetaObject->className(),
-                       c.receiver->objectName().isEmpty() ? "unnamed" : qPrintable(c.receiver->objectName()),
+                       c->receiver->objectName().isEmpty() ? "unnamed" : qPrintable(c->receiver->objectName()),
                        method.signature());
             }
         }
@@ -3443,18 +3457,16 @@ void QObject::dumpObjectInfo()
     // now look for connections where this object is the receiver
     qDebug("  SIGNALS IN");
 
-    if (!d->senders.isEmpty()) {
-        for (int i = 0; i < d->senders.count(); ++i) {
-            const QObjectPrivate::Sender &s = d->senders.at(i);
-            const QMetaObject *senderMetaObject = s.sender->metaObject();
-            const QMetaMethod signal = senderMetaObject->method(s.signal);
-            qDebug("          <-- %s::%s %s",
-                   senderMetaObject->className(),
-                   s.sender->objectName().isEmpty() ? "unnamed" : qPrintable(s.sender->objectName()),
-                   signal.signature());
+    if (d->senders) {
+        for (QObjectPrivate::Connection *s = d->senders; s; s = s->next) {
+            const QMetaMethod slot = metaObject()->method(s->method);
+            qDebug("          <-- %s::%s  %s",
+                   s->sender->metaObject()->className(),
+                   s->sender->objectName().isEmpty() ? "unnamed" : qPrintable(s->sender->objectName()),
+                   slot.signature());
         }
     } else {
-	qDebug("        <None>");
+        qDebug("        <None>");
     }
 #endif
 }
@@ -3507,7 +3519,7 @@ QDebug operator<<(QDebug dbg, const QObject *o) {
 #ifndef Q_BROKEN_DEBUG_STREAM
     if (!o)
         return dbg << "QObject(0x0) ";
-    dbg.nospace() << o->metaObject()->className() << "(" << (void *)o;
+    dbg.nospace() << o->metaObject()->className() << '(' << (void *)o;
     if (!o->objectName().isEmpty())
         dbg << ", name = " << o->objectName();
     dbg << ')';
diff --git a/src/corelib/kernel/qobject.h b/src/corelib/kernel/qobject.h
index 8d5c4e3..72f2a65 100644
--- a/src/corelib/kernel/qobject.h
+++ b/src/corelib/kernel/qobject.h
@@ -107,7 +107,8 @@ public:
     uint receiveChildEvents : 1;
     uint inEventHandler : 1;
     uint inThreadChangeEvent : 1;
-    uint unused : 23;
+    uint hasGuards : 1; //true iff there is one or more QPointer attached to this object
+    uint unused : 22;
     int postedEvents;
 };
 
diff --git a/src/corelib/kernel/qobject_p.h b/src/corelib/kernel/qobject_p.h
index 0eed938..d699061 100644
--- a/src/corelib/kernel/qobject_p.h
+++ b/src/corelib/kernel/qobject_p.h
@@ -114,7 +114,6 @@ public:
         int signal;
         int ref;
     };
-
     // object currently activating the object
     Sender *currentSender;
 
@@ -148,21 +147,23 @@ public:
     // Note: you must hold the signalSlotLock() before accessing the lists below or calling the functions
     struct Connection
     {
+        QObject *sender;
         QObject *receiver;
         int method;
         uint connectionType : 3; // 0 == auto, 1 == direct, 2 == queued, 4 == blocking
         QBasicAtomicPointer<int> argumentTypes;
+        //senders linked list
+        Connection *next;
+        Connection **prev;
+        ~Connection();
     };
-    typedef QList<Connection> ConnectionList;
+    typedef QList<Connection *> ConnectionList;
 
     QObjectConnectionListVector *connectionLists;
     void addConnection(int signal, Connection *c);
-    void removeReceiver(int signal, QObject *receiver);
     void cleanConnectionLists();
 
-    QList<Sender> senders;
-    void refSender(QObject *sender, int signal);
-    void derefSender(QObject *sender, int signal);
+    Connection *senders; //linked list;
 
     static Sender *setCurrentSender(QObject *receiver,
                                     Sender *sender);
@@ -207,7 +208,7 @@ private:
     QSemaphore *semaphore_;
 };
 
-class Q_CORE_EXPORT QBoolBlocker
+class QBoolBlocker
 {
 public:
     inline QBoolBlocker(bool &b, bool value=true):block(b), reset(b){block = value;}
diff --git a/src/corelib/kernel/qobjectdefs.h b/src/corelib/kernel/qobjectdefs.h
index 3a22323..f5d08ce 100644
--- a/src/corelib/kernel/qobjectdefs.h
+++ b/src/corelib/kernel/qobjectdefs.h
@@ -55,7 +55,7 @@ class QByteArray;
 class QString;
 
 #ifndef Q_MOC_OUTPUT_REVISION
-#define Q_MOC_OUTPUT_REVISION 61
+#define Q_MOC_OUTPUT_REVISION 62
 #endif
 
 // The following macros are our "extensions" to C++
diff --git a/src/corelib/kernel/qtimer.cpp b/src/corelib/kernel/qtimer.cpp
index 4b3feb0..29bdf7e 100644
--- a/src/corelib/kernel/qtimer.cpp
+++ b/src/corelib/kernel/qtimer.cpp
@@ -211,7 +211,7 @@ void QTimer::start()
 */
 void QTimer::start(int msec)
 {
-    setInterval(msec);
+    inter = msec;
     start();
 }
 
@@ -251,7 +251,7 @@ void QTimer::stop()
 
 
 /*!
-    \reimp
+  \reimp
 */
 void QTimer::timerEvent(QTimerEvent *e)
 {
@@ -269,7 +269,7 @@ class QSingleShotTimer : public QObject
 public:
     ~QSingleShotTimer();
     QSingleShotTimer(int msec, QObject *r, const char * m);
-signals:
+Q_SIGNALS:
     void timeout();
 protected:
     void timerEvent(QTimerEvent *);
diff --git a/src/corelib/kernel/qtranslator.cpp b/src/corelib/kernel/qtranslator.cpp
index df904a6..38fa216 100644
--- a/src/corelib/kernel/qtranslator.cpp
+++ b/src/corelib/kernel/qtranslator.cpp
@@ -209,8 +209,6 @@ static int numerusHelper(int n, const uchar *rules, int rulesSize)
     return -1;
 }
 
-extern bool qt_detectRTLLanguage();
-
 class QTranslatorPrivate : public QObjectPrivate
 {
     Q_DECLARE_PUBLIC(QTranslator)
@@ -351,7 +349,7 @@ QTranslator::QTranslator(QObject * parent, const char * name)
 QTranslator::~QTranslator()
 {
     if (QCoreApplication::instance())
-        QCoreApplication::instance()->removeTranslator(this);
+        QCoreApplication::removeTranslator(this);
     Q_D(QTranslator);
     d->clear();
 }
diff --git a/src/corelib/kernel/qvariant.cpp b/src/corelib/kernel/qvariant.cpp
index 0d85b93..9fc230e 100644
--- a/src/corelib/kernel/qvariant.cpp
+++ b/src/corelib/kernel/qvariant.cpp
@@ -71,27 +71,6 @@ QT_BEGIN_NAMESPACE
 #  define FLT_DIG 6
 #endif
 
-
-static const void *constDataHelper(const QVariant::Private &d)
-{
-    switch (d.type) {
-    case QVariant::Int:
-        return &d.data.i;
-    case QVariant::UInt:
-        return &d.data.u;
-    case QVariant::Bool:
-        return &d.data.b;
-    case QVariant::LongLong:
-        return &d.data.ll;
-    case QVariant::ULongLong:
-        return &d.data.ull;
-    case QVariant::Double:
-        return &d.data.d;
-    default:
-        return d.is_shared ? d.data.shared->ptr : reinterpret_cast<const void *>(&d.data.ptr);
-    }
-}
-
 static void construct(QVariant::Private *x, const void *copy)
 {
     x->is_shared = false;
@@ -188,6 +167,9 @@ static void construct(QVariant::Private *x, const void *copy)
         x->data.d = copy ? *static_cast<const double*>(copy) : 0.0;
 #endif        
         break;
+    case QMetaType::Float:
+        x->data.f = copy ? *static_cast<const float*>(copy) : 0.0f;
+        break;
     case QVariant::LongLong:
 #if defined(Q_CC_RVCT) 
         // Using trinary operator with 64bit constants crashes when ran on Symbian device
@@ -301,6 +283,7 @@ static void clear(QVariant::Private *d)
     case QVariant::LongLong:
     case QVariant::ULongLong:
     case QVariant::Double:
+    case QMetaType::Float:
         break;
     case QVariant::Invalid:
     case QVariant::UserType:
@@ -369,6 +352,7 @@ static bool isNull(const QVariant::Private *d)
     case QVariant::ULongLong:
     case QVariant::Bool:
     case QVariant::Double:
+    case QMetaType::Float:
         break;
     }
     return d->is_null;
@@ -460,6 +444,8 @@ static bool compare(const QVariant::Private *a, const QVariant::Private *b)
         return a->data.b == b->data.b;
     case QVariant::Double:
         return a->data.d == b->data.d;
+    case QMetaType::Float:
+        return a->data.f == b->data.f;
     case QVariant::Date:
         return *v_cast<QDate>(a) == *v_cast<QDate>(b);
     case QVariant::Time:
@@ -518,7 +504,7 @@ static qlonglong qMetaTypeNumber(const QVariant::Private *d)
     case QMetaType::Long:
         return qlonglong(*static_cast<long *>(d->data.shared->ptr));
     case QMetaType::Float:
-        return qRound64(*static_cast<float *>(d->data.shared->ptr));
+        return qRound64(d->data.f);
     case QVariant::Double:
         return qRound64(d->data.d);
     }
@@ -632,6 +618,15 @@ static bool convert(const QVariant::Private *d, QVariant::Type t, void *result,
         ok = &dummy;
 
     switch (uint(t)) {
+    case QVariant::Url: 
+        switch (d->type) {
+        case QVariant::String:
+            *static_cast<QUrl *>(result) = QUrl(*v_cast<QString>(d));
+            break;
+        default:
+            return false;
+        }
+        break;
     case QVariant::String: {
         QString *str = static_cast<QString *>(result);
         switch (d->type) {
@@ -655,7 +650,7 @@ static bool convert(const QVariant::Private *d, QVariant::Type t, void *result,
             *str = QString::number(qMetaTypeUNumber(d));
             break;
         case QMetaType::Float:
-            *str = QString::number(*static_cast<float *>(d->data.shared->ptr), 'g', FLT_DIG);
+            *str = QString::number(d->data.f, 'g', FLT_DIG);
             break;
         case QVariant::Double:
             *str = QString::number(d->data.d, 'g', DBL_DIG);
@@ -681,6 +676,8 @@ static bool convert(const QVariant::Private *d, QVariant::Type t, void *result,
             if (v_cast<QStringList>(d)->count() == 1)
                 *str = v_cast<QStringList>(d)->at(0);
             break;
+        case QVariant::Url:
+            *str = v_cast<QUrl>(d)->toString();
         default:
             return false;
         }
@@ -826,7 +823,7 @@ static bool convert(const QVariant::Private *d, QVariant::Type t, void *result,
             *ba = QByteArray::number(d->data.d, 'g', DBL_DIG);
             break;
         case QMetaType::Float:
-            *ba = QByteArray::number(*static_cast<float *>(d->data.shared->ptr), 'g', FLT_DIG);
+            *ba = QByteArray::number(d->data.f, 'g', FLT_DIG);
             break;
         case QMetaType::Char:
         case QMetaType::UChar:
@@ -928,7 +925,7 @@ static bool convert(const QVariant::Private *d, QVariant::Type t, void *result,
             *f = double(d->data.b);
             break;
         case QMetaType::Float:
-            *f = *static_cast<float *>(d->data.shared->ptr);
+            *f = double(d->data.f);
             break;
         case QVariant::LongLong:
         case QVariant::Int:
@@ -1062,7 +1059,7 @@ static bool convert(const QVariant::Private *d, QVariant::Type t, void *result,
 #if !defined(QT_NO_DEBUG_STREAM) && !defined(Q_BROKEN_DEBUG_STREAM)
 static void streamDebug(QDebug dbg, const QVariant &v)
 {
-    switch (v.type()) {
+    switch (v.userType()) {
     case QVariant::Int:
         dbg.nospace() << v.toInt();
         break;
@@ -1075,6 +1072,9 @@ static void streamDebug(QDebug dbg, const QVariant &v)
     case QVariant::ULongLong:
         dbg.nospace() << v.toULongLong();
         break;
+    case QMetaType::Float:
+        dbg.nospace() << qVariantValue<float>(v);
+        break;
     case QVariant::Double:
         dbg.nospace() << v.toDouble();
         break;
@@ -1383,7 +1383,7 @@ void QVariant::create(int type, const void *copy)
 
 QVariant::~QVariant()
 {
-    if (d.type > Char && (!d.is_shared || !d.data.shared->ref.deref()))
+    if (d.type > Char && d.type != QMetaType::Float && (!d.is_shared || !d.data.shared->ref.deref()))
         handler->clear(&d);
 }
 
@@ -1399,7 +1399,7 @@ QVariant::QVariant(const QVariant &p)
 {
     if (d.is_shared) {
         d.data.shared->ref.ref();
-    } else if (p.d.type > Char) {
+    } else if (p.d.type > Char && p.d.type != QMetaType::Float) {
         handler->construct(&d, p.constData());
         d.is_null = p.d.is_null;
     }
@@ -1593,6 +1593,12 @@ QVariant::QVariant(const char *val)
 */
 
 /*!
+  \fn QVariant::QVariant(float val)
+
+    Constructs a new variant with a floating point value, \a val.
+*/
+
+/*!
     \fn QVariant::QVariant(const QList<QVariant> &val)
 
     Constructs a new variant with a list value, \a val.
@@ -1647,44 +1653,44 @@ QVariant::QVariant(double val)
 { d.is_null = false; d.type = Double; d.data.d = val; }
 
 QVariant::QVariant(const QByteArray &val)
-{ create(ByteArray, &val); }
+{ d.is_null = false; d.type = ByteArray; v_construct<QByteArray>(&d, val); }
 QVariant::QVariant(const QBitArray &val)
-{ create(BitArray, &val); }
+{ d.is_null = false; d.type = BitArray; v_construct<QBitArray>(&d, val);  }
 QVariant::QVariant(const QString &val)
-{ create(String, &val); }
+{ d.is_null = false; d.type = String; v_construct<QString>(&d, val);  }
 QVariant::QVariant(const QChar &val)
-{ create (Char, &val); }
+{ d.is_null = false; d.type = Char; v_construct<QChar>(&d, val);  }
 QVariant::QVariant(const QLatin1String &val)
-{ QString str(val); create(String, &str); }
+{ QString str(val); d.is_null = false; d.type = String; v_construct<QString>(&d, str); }
 QVariant::QVariant(const QStringList &val)
-{ create(StringList, &val); }
+{ d.is_null = false; d.type = StringList; v_construct<QStringList>(&d, val); }
 
 QVariant::QVariant(const QDate &val)
-{ create(Date, &val); }
+{ d.is_null = false; d.type = Date; v_construct<QDate>(&d, val); }
 QVariant::QVariant(const QTime &val)
-{ create(Time, &val); }
+{ d.is_null = false; d.type = Time; v_construct<QTime>(&d, val); }
 QVariant::QVariant(const QDateTime &val)
-{ create(DateTime, &val); }
+{ d.is_null = false; d.type = DateTime; v_construct<QDateTime>(&d, val); }
 QVariant::QVariant(const QList<QVariant> &list)
-{ create(List, &list); }
+{ d.is_null = false; d.type = List; v_construct<QVariantList>(&d, list); }
 QVariant::QVariant(const QMap<QString, QVariant> &map)
-{ create(Map, &map); }
+{ d.is_null = false; d.type = Map; v_construct<QVariantMap>(&d, map); }
 QVariant::QVariant(const QHash<QString, QVariant> &hash)
-{ create(Hash, &hash); }
+{ d.is_null = false; d.type = Hash; v_construct<QVariantHash>(&d, hash); }
 #ifndef QT_NO_GEOM_VARIANT
-QVariant::QVariant(const QPoint &pt) { create(Point, &pt); }
-QVariant::QVariant(const QPointF &pt) { create (PointF, &pt); }
-QVariant::QVariant(const QRectF &r) { create (RectF, &r); }
-QVariant::QVariant(const QLineF &l) { create (LineF, &l); }
-QVariant::QVariant(const QLine &l) { create (Line, &l); }
-QVariant::QVariant(const QRect &r) { create(Rect, &r); }
-QVariant::QVariant(const QSize &s) { create(Size, &s); }
-QVariant::QVariant(const QSizeF &s) { create(SizeF, &s); }
+QVariant::QVariant(const QPoint &pt) { d.is_null = false; d.type = Point; v_construct<QPoint>(&d, pt); }
+QVariant::QVariant(const QPointF &pt) { d.is_null = false; d.type = PointF; v_construct<QPointF>(&d, pt); }
+QVariant::QVariant(const QRectF &r) { d.is_null = false; d.type = RectF; v_construct<QRectF>(&d, r); }
+QVariant::QVariant(const QLineF &l) { d.is_null = false; d.type = LineF; v_construct<QLineF>(&d, l); }
+QVariant::QVariant(const QLine &l) { d.is_null = false; d.type = Line; v_construct<QLine>(&d, l); }
+QVariant::QVariant(const QRect &r) { d.is_null = false; d.type = Rect; v_construct<QRect>(&d, r); }
+QVariant::QVariant(const QSize &s) { d.is_null = false; d.type = Size; v_construct<QSize>(&d, s); }
+QVariant::QVariant(const QSizeF &s) { d.is_null = false; d.type = SizeF; v_construct<QSizeF>(&d, s); }
 #endif
-QVariant::QVariant(const QUrl &u) { create(Url, &u); }
-QVariant::QVariant(const QLocale &l) { create(Locale, &l); }
+QVariant::QVariant(const QUrl &u) { d.is_null = false; d.type = Url; v_construct<QUrl>(&d, u); }
+QVariant::QVariant(const QLocale &l) { d.is_null = false; d.type = Locale; v_construct<QLocale>(&d, l); }
 #ifndef QT_NO_REGEXP
-QVariant::QVariant(const QRegExp &regExp) { create(RegExp, &regExp); }
+QVariant::QVariant(const QRegExp &regExp) { d.is_null = false; d.type = RegExp; v_construct<QRegExp>(&d, regExp); }
 #endif
 QVariant::QVariant(Qt::GlobalColor color) { create(62, &color); }
 
@@ -1749,7 +1755,7 @@ QVariant& QVariant::operator=(const QVariant &variant)
     if (variant.d.is_shared) {
         variant.d.data.shared->ref.ref();
         d = variant.d;
-    } else if (variant.d.type > Char) {
+    } else if (variant.d.type > Char && variant.d.type != QMetaType::Float) {
         d.type = variant.d.type;
         handler->construct(&d, variant.constData());
         d.is_null = variant.d.is_null;
@@ -1855,7 +1861,7 @@ QVariant::Type QVariant::nameToType(const char *name)
 
 #ifndef QT_NO_DATASTREAM
 enum { MapFromThreeCount = 35 };
-static const uint map_from_three[MapFromThreeCount] =
+static const ushort map_from_three[MapFromThreeCount] =
 {
     QVariant::Invalid,
     QVariant::Map,
@@ -1935,7 +1941,7 @@ void QVariant::load(QDataStream &s)
     }
 
     // const cast is safe since we operate on a newly constructed variant
-    if (!QMetaType::load(s, d.type, const_cast<void *>(constDataHelper(d)))) {
+    if (!QMetaType::load(s, d.type, const_cast<void *>(constData()))) {
         s.setStatus(QDataStream::ReadCorruptData);
         qWarning("QVariant::load: unable to load type %d.", d.type);
     }
@@ -1975,7 +1981,7 @@ void QVariant::save(QDataStream &s) const
         return;
     }
 
-    if (!QMetaType::save(s, d.type, constDataHelper(d))) {
+    if (!QMetaType::save(s, d.type, constData())) {
         Q_ASSERT_X(false, "QVariant::save", "Invalid type to save");
         qWarning("QVariant::save: unable to save type %d.", d.type);
     }
@@ -2516,7 +2522,8 @@ static const quint32 qCanConvertMatrix[QVariant::LastCoreType + 1] =
 /*QString*/       1 << QVariant::StringList | 1 << QVariant::ByteArray  | 1 << QVariant::Int
                 | 1 << QVariant::UInt       | 1 << QVariant::Bool       | 1 << QVariant::Double
                 | 1 << QVariant::Date       | 1 << QVariant::Time       | 1 << QVariant::DateTime
-                | 1 << QVariant::LongLong   | 1 << QVariant::ULongLong  | 1 << QVariant::Char,
+                | 1 << QVariant::LongLong   | 1 << QVariant::ULongLong  | 1 << QVariant::Char
+                | 1 << QVariant::Url,
 
 /*QStringList*/   1 << QVariant::List       | 1 << QVariant::String,
 
@@ -2531,7 +2538,7 @@ static const quint32 qCanConvertMatrix[QVariant::LastCoreType + 1] =
 
 /*QDateTime*/     1 << QVariant::String     | 1 << QVariant::Date,
 
-/*QUrl*/          0,
+/*QUrl*/          1 << QVariant::String,
 
 /*QLocale*/       0,
 
@@ -2593,57 +2600,63 @@ static const quint32 qCanConvertMatrix[QVariant::LastCoreType + 1] =
 */
 bool QVariant::canConvert(Type t) const
 {
-    if (d.type == uint(t))
+    //we can treat floats as double
+    //the reason for not doing it the "proper" way is that QMetaType::Float's value is 135,
+    //which can't be handled by qCanConvertMatrix
+    //In addition QVariant::Type doesn't have a Float value, so we're using QMetaType::Float
+    const uint currentType = ((d.type == QMetaType::Float) ? QVariant::Double : d.type);
+    if (uint(t) == uint(QMetaType::Float)) t = QVariant::Double;
+
+    if (currentType == uint(t))
         return true;
 
-    if (d.type > QVariant::LastCoreType || t > QVariant::LastCoreType) {
+    if (currentType > QVariant::LastCoreType || t > QVariant::LastCoreType) {
         switch (uint(t)) {
         case QVariant::Int:
-            return d.type == QVariant::KeySequence
-                   || d.type == QMetaType::ULong
-                   || d.type == QMetaType::Long
-                   || d.type == QMetaType::UShort
-                   || d.type == QMetaType::UChar
-                   || d.type == QMetaType::Char
-                   || d.type == QMetaType::Short;
+            return currentType == QVariant::KeySequence
+                   || currentType == QMetaType::ULong
+                   || currentType == QMetaType::Long
+                   || currentType == QMetaType::UShort
+                   || currentType == QMetaType::UChar
+                   || currentType == QMetaType::Char
+                   || currentType == QMetaType::Short;
         case QVariant::Image:
-            return d.type == QVariant::Pixmap || d.type == QVariant::Bitmap;
+            return currentType == QVariant::Pixmap || currentType == QVariant::Bitmap;
         case QVariant::Pixmap:
-            return d.type == QVariant::Image || d.type == QVariant::Bitmap
-                              || d.type == QVariant::Brush;
+            return currentType == QVariant::Image || currentType == QVariant::Bitmap
+                              || currentType == QVariant::Brush;
         case QVariant::Bitmap:
-            return d.type == QVariant::Pixmap || d.type == QVariant::Image;
+            return currentType == QVariant::Pixmap || currentType == QVariant::Image;
         case QVariant::ByteArray:
-            return d.type == QVariant::Color;
+            return currentType == QVariant::Color;
         case QVariant::String:
-            return d.type == QVariant::KeySequence || d.type == QVariant::Font
-                              || d.type == QVariant::Color;
+            return currentType == QVariant::KeySequence || currentType == QVariant::Font
+                              || currentType == QVariant::Color;
         case QVariant::KeySequence:
-            return d.type == QVariant::String || d.type == QVariant::Int;
+            return currentType == QVariant::String || currentType == QVariant::Int;
         case QVariant::Font:
-            return d.type == QVariant::String;
+            return currentType == QVariant::String;
         case QVariant::Color:
-            return d.type == QVariant::String || d.type == QVariant::ByteArray
-                              || d.type == QVariant::Brush;
+            return currentType == QVariant::String || currentType == QVariant::ByteArray
+                              || currentType == QVariant::Brush;
         case QVariant::Brush:
-            return d.type == QVariant::Color || d.type == QVariant::Pixmap;
+            return currentType == QVariant::Color || currentType == QVariant::Pixmap;
         case QMetaType::Long:
         case QMetaType::Char:
         case QMetaType::UChar:
         case QMetaType::ULong:
         case QMetaType::Short:
         case QMetaType::UShort:
-        case QMetaType::Float:
-            return qCanConvertMatrix[QVariant::Int] & (1 << d.type) || d.type == QVariant::Int;
+            return qCanConvertMatrix[QVariant::Int] & (1 << currentType) || currentType == QVariant::Int;
         default:
             return false;
         }
     }
 
-    if(t == String && d.type == StringList)
+    if(t == String && currentType == StringList)
         return v_cast<QStringList>(&d)->count() == 1;
     else
-        return qCanConvertMatrix[t] & (1 << d.type);
+        return qCanConvertMatrix[t] & (1 << currentType);
 }
 
 /*!
@@ -2754,7 +2767,7 @@ bool QVariant::cmp(const QVariant &v) const
 
 const void *QVariant::constData() const
 {
-    return constDataHelper(d);
+    return d.is_shared ? d.data.shared->ptr : reinterpret_cast<const void *>(&d.data.ptr);
 }
 
 /*!
@@ -2767,7 +2780,7 @@ const void *QVariant::constData() const
 void* QVariant::data()
 {
     detach();
-    return const_cast<void *>(constDataHelper(d));
+    return const_cast<void *>(constData());
 }
 
 
diff --git a/src/corelib/kernel/qvariant.h b/src/corelib/kernel/qvariant.h
index d7b7e3c..d73fcbc 100644
--- a/src/corelib/kernel/qvariant.h
+++ b/src/corelib/kernel/qvariant.h
@@ -181,6 +181,7 @@ class Q_CORE_EXPORT QVariant
     QVariant(qulonglong ull);
     QVariant(bool b);
     QVariant(double d);
+    QVariant(float f) { d.is_null = false; d.type = QMetaType::Float; d.data.f = f; }
 #ifndef QT_NO_CAST_FROM_ASCII
     QT_ASCII_CAST_WARN_CONSTRUCTOR QVariant(const char *str);
 #endif
@@ -349,6 +350,7 @@ class Q_CORE_EXPORT QVariant
             uint u;
             bool b;
             double d;
+            float f;
             qlonglong ll;
             qulonglong ull;
             void *ptr;
@@ -443,7 +445,18 @@ inline QVariant qVariantFromValue(const QVariant &t) { return t; }
 template <typename T>
 inline void qVariantSetValue(QVariant &v, const T &t)
 {
-    v = QVariant(qMetaTypeId<T>(reinterpret_cast<T *>(0)), &t);
+    //if possible we reuse the current QVariant private
+    const int type = qMetaTypeId<T>(reinterpret_cast<T *>(0));
+    QVariant::Private &d = v.data_ptr();
+    if (type <= int(QVariant::Char) || (type == d.type && v.isDetached())) {
+        d.type = type;
+        T *old = reinterpret_cast<T*>(d.is_shared ? d.data.shared->ptr : &d.data.ptr);
+        if (QTypeInfo<T>::isComplex)
+            old->~T();
+        new (old) T(t); //call the copy constructor
+    } else {
+        v = QVariant(type, &t);
+    }
 }
 
 inline QVariant::QVariant() {}
diff --git a/src/corelib/kernel/qvariant_p.h b/src/corelib/kernel/qvariant_p.h
index 727a390..02b507e 100644
--- a/src/corelib/kernel/qvariant_p.h
+++ b/src/corelib/kernel/qvariant_p.h
@@ -91,13 +91,25 @@ inline T *v_cast(QVariant::Private *d, T * = 0)
 
 #endif
 
+
+//a simple template that avoids to allocate 2 memory chunks when creating a QVariant
+template <class T> class QVariantPrivateSharedEx : public QVariant::PrivateShared
+{
+public:
+    QVariantPrivateSharedEx() : QVariant::PrivateShared(&m_t) { }
+    QVariantPrivateSharedEx(const T&t) : QVariant::PrivateShared(&m_t), m_t(t) { }
+
+private:
+    T m_t;
+};
+
 // constructs a new variant if copy is 0, otherwise copy-constructs
 template <class T>
 inline void v_construct(QVariant::Private *x, const void *copy, T * = 0)
 {
     if (sizeof(T) > sizeof(QVariant::Private::Data)) {
-        x->data.shared = copy ? new QVariant::PrivateShared(new T(*static_cast<const T *>(copy)))
-                              : new QVariant::PrivateShared(new T);
+        x->data.shared = copy ? new QVariantPrivateSharedEx<T>(*static_cast<const T *>(copy))
+                              : new QVariantPrivateSharedEx<T>;
         x->is_shared = true;
     } else {
         if (copy)
@@ -107,16 +119,30 @@ inline void v_construct(QVariant::Private *x, const void *copy, T * = 0)
     }
 }
 
+template <class T>
+inline void v_construct(QVariant::Private *x, const T &t)
+{
+    if (sizeof(T) > sizeof(QVariant::Private::Data)) {
+        x->data.shared = new QVariantPrivateSharedEx<T>(t);
+        x->is_shared = true;
+    } else {
+        new (&x->data.ptr) T(t);
+    }
+}
+
 // deletes the internal structures
 template <class T>
 inline void v_clear(QVariant::Private *d, T* = 0)
 {
+    
     if (sizeof(T) > sizeof(QVariant::Private::Data)) {
-        delete v_cast<T>(d);
-        delete d->data.shared;
+        //now we need to cast
+        //because QVariant::PrivateShared doesn't have a virtual destructor
+        delete static_cast<QVariantPrivateSharedEx<T>*>(d->data.shared);
     } else {
         v_cast<T>(d)->~T();
     }
+
 }
 
 QT_END_NAMESPACE
author	Jason Barron <jbarron@trolltech.com>	2009-06-25 13:49:53 (GMT)
committer	Jason Barron <jbarron@trolltech.com>	2009-06-25 13:49:53 (GMT)
commit	db8f05e257019694f5e8076845626008f2adc3dd (patch)
tree	05d3959403cf15ac5f702091439e028af01f343b /src/corelib/kernel
parent	8aafaa65a1d16f8b982279f5aceedf1e281ddb5a (diff)
parent	796a5a2c7d8c91a46ac761dde18b7da2ec6c177b (diff)
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