Merge remote branch 'origin/4.6' into qt-4.7-from-4.6

Conflicts:
	configure.exe
	examples/multimedia/audioinput/audioinput.cpp
	src/corelib/io/qfsfileengine.cpp
	src/gui/egl/qegl_wince.cpp
	src/gui/egl/qeglproperties.cpp
	src/gui/egl/qeglproperties_p.h
	src/gui/embedded/directfb.pri
	src/gui/kernel/qapplication_win.cpp
	src/gui/painting/qdrawutil.cpp
	src/opengl/qgl_p.h
	src/sql/drivers/odbc/qsql_odbc.cpp
	src/sql/drivers/odbc/qsql_odbc.h
	tests/auto/auto.pro
	tests/auto/qgl/tst_qgl.cpp
	translations/assistant_adp_ru.ts

14 files changed, 110 insertions, 70 deletions

diff --git a/src/corelib/codecs/qiconvcodec.cpp b/src/corelib/codecs/qiconvcodec.cpp
index 0f73d9b..0fcdf96 100644
--- a/src/corelib/codecs/qiconvcodec.cpp
+++ b/src/corelib/codecs/qiconvcodec.cpp
@@ -299,6 +299,32 @@ QString QIconvCodec::convertToUnicode(const char* chars, int len, ConverterState
 
 Q_GLOBAL_STATIC(QThreadStorage<QIconvCodec::IconvState *>, fromUnicodeState)
 
+static bool setByteOrder(iconv_t cd)
+{
+#if !defined(NO_BOM)
+    // give iconv() a BOM
+    char buf[4];
+    ushort bom[] = { QChar::ByteOrderMark };
+
+    char *outBytes = buf;
+    char *inBytes = reinterpret_cast<char *>(bom);
+    size_t outBytesLeft = sizeof buf;
+    size_t inBytesLeft = sizeof bom;
+
+#if defined(GNU_LIBICONV)
+    const char **inBytesPtr = const_cast<const char **>(&inBytes);
+#else
+    char **inBytesPtr = &inBytes;
+#endif
+
+    if (iconv(cd, inBytesPtr, &inBytesLeft, &outBytes, &outBytesLeft) == (size_t) -1) {
+        return false;
+    }
+#endif // NO_BOM
+
+    return true;
+}
+
 QByteArray QIconvCodec::convertFromUnicode(const QChar *uc, int len, ConverterState *convState) const
 {
     char *inBytes;
@@ -325,17 +351,8 @@ QByteArray QIconvCodec::convertFromUnicode(const QChar *uc, int len, ConverterSt
     IconvState *&state = ts->localData();
     if (!state) {
         state = new IconvState(QIconvCodec::createIconv_t(0, UTF16));
-        if (state->cd != reinterpret_cast<iconv_t>(-1)) {
-            size_t outBytesLeft = len + 3; // +3 for the BOM
-            QByteArray ba(outBytesLeft, Qt::Uninitialized);
-            outBytes = ba.data();
-
-#if !defined(NO_BOM)
-            // give iconv() a BOM
-            QChar bom[] = { QChar(QChar::ByteOrderMark) };
-            inBytes = reinterpret_cast<char *>(bom);
-            inBytesLeft = sizeof(bom);
-            if (iconv(state->cd, inBytesPtr, &inBytesLeft, &outBytes, &outBytesLeft) == (size_t) -1) {
+        if (state->cd == reinterpret_cast<iconv_t>(-1)) {
+            if (!setByteOrder(state->cd)) {
                 perror("QIconvCodec::convertFromUnicode: using ASCII for conversion, iconv failed for BOM");
 
                 iconv_close(state->cd);
@@ -343,7 +360,6 @@ QByteArray QIconvCodec::convertFromUnicode(const QChar *uc, int len, ConverterSt
 
                 return QString(uc, len).toAscii();
             }
-#endif // NO_BOM
         }
     }
     if (state->cd == reinterpret_cast<iconv_t>(-1)) {
@@ -422,6 +438,7 @@ QByteArray QIconvCodec::convertFromUnicode(const QChar *uc, int len, ConverterSt
 
     // reset to initial state
     iconv(state->cd, 0, &inBytesLeft, 0, &outBytesLeft);
+    setByteOrder(state->cd);
 
     ba.resize(ba.size() - outBytesLeft);
 
diff --git a/src/corelib/global/qnamespace.h b/src/corelib/global/qnamespace.h
index d2546a7..f7aea36 100644
--- a/src/corelib/global/qnamespace.h
+++ b/src/corelib/global/qnamespace.h
@@ -299,7 +299,9 @@ public:
         MacWindowToolBarButtonHint = 0x10000000,
         BypassGraphicsProxyWidget = 0x20000000,
         WindowOkButtonHint = 0x00080000,
-        WindowCancelButtonHint = 0x00100000
+        WindowCancelButtonHint = 0x00100000,
+        WindowSoftkeysVisibleHint = 0x40000000,
+        WindowSoftkeysRespondHint = 0x80000000
 
 #ifdef QT3_SUPPORT
         ,
diff --git a/src/corelib/global/qnamespace.qdoc b/src/corelib/global/qnamespace.qdoc
index c5b5998..74144b0 100644
--- a/src/corelib/global/qnamespace.qdoc
+++ b/src/corelib/global/qnamespace.qdoc
@@ -1623,22 +1623,22 @@
     \value Key_OpenUrl
     \value Key_LaunchMail
     \value Key_LaunchMedia
-    \value Key_Launch0
-    \value Key_Launch1
-    \value Key_Launch2
-    \value Key_Launch3
-    \value Key_Launch4
-    \value Key_Launch5
-    \value Key_Launch6
-    \value Key_Launch7
-    \value Key_Launch8
-    \value Key_Launch9
-    \value Key_LaunchA
-    \value Key_LaunchB
-    \value Key_LaunchC
-    \value Key_LaunchD
-    \value Key_LaunchE
-    \value Key_LaunchF
+    \value Key_Launch0 On X11 this key is mapped to "My Computer" (XF86XK_MyComputer) key for legacy reasons.
+    \value Key_Launch1 On X11 this key is mapped to "Calculator" (XF86XK_Calculator) key for legacy reasons.
+    \value Key_Launch2 On X11 this key is mapped to XF86XK_Launch0 key for legacy reasons.
+    \value Key_Launch3 On X11 this key is mapped to XF86XK_Launch1 key for legacy reasons.
+    \value Key_Launch4 On X11 this key is mapped to XF86XK_Launch2 key for legacy reasons.
+    \value Key_Launch5 On X11 this key is mapped to XF86XK_Launch3 key for legacy reasons.
+    \value Key_Launch6 On X11 this key is mapped to XF86XK_Launch4 key for legacy reasons.
+    \value Key_Launch7 On X11 this key is mapped to XF86XK_Launch5 key for legacy reasons.
+    \value Key_Launch8 On X11 this key is mapped to XF86XK_Launch6 key for legacy reasons.
+    \value Key_Launch9 On X11 this key is mapped to XF86XK_Launch7 key for legacy reasons.
+    \value Key_LaunchA On X11 this key is mapped to XF86XK_Launch8 key for legacy reasons.
+    \value Key_LaunchB On X11 this key is mapped to XF86XK_Launch9 key for legacy reasons.
+    \value Key_LaunchC On X11 this key is mapped to XF86XK_LaunchA key for legacy reasons.
+    \value Key_LaunchD On X11 this key is mapped to XF86XK_LaunchB key for legacy reasons.
+    \value Key_LaunchE On X11 this key is mapped to XF86XK_LaunchC key for legacy reasons.
+    \value Key_LaunchF On X11 this key is mapped to XF86XK_LaunchD key for legacy reasons.
     \value Key_MonBrightnessUp
     \value Key_MonBrightnessDown
     \value Key_KeyboardLightOnOff
@@ -1664,7 +1664,7 @@
     \value Key_ApplicationRight
     \value Key_Book
     \value Key_CD
-    \value Key_Calculator
+    \value Key_Calculator On X11 this key is not mapped for legacy reasons. Use Qt::Key_Launch1 instead.
     \value Key_ToDoList
     \value Key_ClearGrab
     \value Key_Close
@@ -2147,6 +2147,14 @@
     \value WindowCancelButtonHint Adds a Cancel button to the window decoration of a dialog.
            Only supported for Windows CE.
 
+    \value WindowSoftkeysVisibleHint Makes softkeys visible when widget is fullscreen.
+           Only supported for Symbian.
+
+    \value WindowSoftkeysRespondHint Makes softkeys to receive key events even
+           when invisible. With this hint the softkey actions are triggered
+           even the softkeys are invisible i.e. the window is displayed with
+           \c showFullscreen(). Only supported for Symbian.
+
     \value WindowType_Mask  A mask for extracting the window type
                             part of the window flags.
 
diff --git a/src/corelib/io/qfsfileengine.cpp b/src/corelib/io/qfsfileengine.cpp
index 1672dfc..070edb4 100644
--- a/src/corelib/io/qfsfileengine.cpp
+++ b/src/corelib/io/qfsfileengine.cpp
@@ -147,6 +147,8 @@ QString QFSFileEnginePrivate::canonicalized(const QString &path)
         return path;
 #endif
 #if defined(Q_OS_LINUX) || defined(Q_OS_SYMBIAN) || defined(Q_OS_MAC)
+    // ... but Linux with uClibc does not have it
+#if !defined(__UCLIBC__)
     char *ret = 0;
 #if defined(Q_OS_MAC)
     // Mac OS X 10.5.x doesn't support the realpath(X,0) extension we use here.
@@ -173,6 +175,7 @@ QString QFSFileEnginePrivate::canonicalized(const QString &path)
         return canonicalPath;
     }
 #endif
+#endif
 
     QFileInfo fi;
     const QChar slash(QLatin1Char('/'));
diff --git a/src/corelib/io/qfsfileengine_unix.cpp b/src/corelib/io/qfsfileengine_unix.cpp
index d2fa744..1331f54 100644
--- a/src/corelib/io/qfsfileengine_unix.cpp
+++ b/src/corelib/io/qfsfileengine_unix.cpp
@@ -668,6 +668,16 @@ bool QFSFileEnginePrivate::doStat() const
             could_stat = (QT_FSTAT(QT_FILENO(fh), &st) == 0);
         } else if (fd == -1) {
             // ### actually covers two cases: d->fh and when the file is not open
+#if defined(Q_OS_SYMBIAN)
+            // Optimisation for Symbian where fileFlags() calls both doStat() and isSymlink(), but rarely on real links.
+            // When the filename is not a link, lstat will return the same info as stat, but this also removes
+            // any need for a further call to lstat to check if the file is a link.
+            need_lstat = false;
+            could_stat = (QT_LSTAT(nativeFilePath.constData(), &st) == 0);
+            is_link = could_stat ? S_ISLNK(st.st_mode) : false;
+            // if it turns out this was a link, we can call stat too.
+            if (is_link)
+#endif
             could_stat = (QT_STAT(nativeFilePath.constData(), &st) == 0);
         } else {
             could_stat = (QT_FSTAT(fd, &st) == 0);
diff --git a/src/corelib/io/qprocess_symbian.cpp b/src/corelib/io/qprocess_symbian.cpp
index 07d10ad..adc87fb 100644
--- a/src/corelib/io/qprocess_symbian.cpp
+++ b/src/corelib/io/qprocess_symbian.cpp
@@ -371,6 +371,7 @@ QProcessActive::QProcessActive()
 // Called from ProcessManagerThread
 QProcessActive::~QProcessActive()
 {
+    Cancel();
     process = NULL;
     pproc = NULL;
 }
@@ -477,6 +478,7 @@ QProcessManagerMediator::QProcessManagerMediator()
 // Called from ProcessManagerThread
 QProcessManagerMediator::~QProcessManagerMediator()
 {
+    Cancel();
     processManagerThread.Close();
     currentCommand = ENoCommand;
     currentObserver = NULL;
diff --git a/src/corelib/kernel/qeventdispatcher_symbian.cpp b/src/corelib/kernel/qeventdispatcher_symbian.cpp
index 1d7be79..191be6c 100644
--- a/src/corelib/kernel/qeventdispatcher_symbian.cpp
+++ b/src/corelib/kernel/qeventdispatcher_symbian.cpp
@@ -733,7 +733,7 @@ bool QEventDispatcherSymbian::processEvents ( QEventLoop::ProcessEventsFlags fla
             }
 
             TInt error;
-            handledSymbianEvent = CActiveScheduler::RunIfReady(error, CActive::EPriorityIdle);
+            handledSymbianEvent = CActiveScheduler::RunIfReady(error, KMinTInt);
             if (error) {
                 qWarning("CActiveScheduler::RunIfReady() returned error: %i\n", error);
                 CActiveScheduler::Current()->Error(error);
diff --git a/src/corelib/kernel/qmetaobject.cpp b/src/corelib/kernel/qmetaobject.cpp
index ecffe99..312c4b2 100644
--- a/src/corelib/kernel/qmetaobject.cpp
+++ b/src/corelib/kernel/qmetaobject.cpp
@@ -974,7 +974,7 @@ QByteArray QMetaObject::normalizedType(const char *type)
     if (!type || !*type)
         return result;
 
-    QVarLengthArray<char> stackbuf(int(strlen(type)) + 1);
+    QVarLengthArray<char> stackbuf(qstrlen(type) + 1);
     qRemoveWhitespace(type, stackbuf.data());
     int templdepth = 0;
     qNormalizeType(stackbuf.data(), templdepth, result);
diff --git a/src/corelib/kernel/qobject.cpp b/src/corelib/kernel/qobject.cpp
index 8e4ec7c..389e6e7 100644
--- a/src/corelib/kernel/qobject.cpp
+++ b/src/corelib/kernel/qobject.cpp
@@ -3279,12 +3279,14 @@ void QMetaObject::activate(QObject *sender, const QMetaObject *m, int local_sign
 
             const int method = c->method;
             QObjectPrivate::Sender currentSender;
-            currentSender.sender = sender;
-            currentSender.signal = signal_absolute_index;
-            currentSender.ref = 1;
+            const bool receiverInSameThread = currentThreadData == receiver->d_func()->threadData;
             QObjectPrivate::Sender *previousSender = 0;
-            if (currentThreadData == receiver->d_func()->threadData)
+            if (receiverInSameThread) {
+                currentSender.sender = sender;
+                currentSender.signal = signal_absolute_index;
+                currentSender.ref = 1;
                 previousSender = QObjectPrivate::setCurrentSender(receiver, &currentSender);
+            }
             locker.unlock();
 
             if (qt_signal_spy_callback_set.slot_begin_callback != 0) {
@@ -3300,8 +3302,8 @@ void QMetaObject::activate(QObject *sender, const QMetaObject *m, int local_sign
                 metacall(receiver, QMetaObject::InvokeMetaMethod, method, argv ? argv : empty_argv);
             } QT_CATCH(...) {
                 locker.relock();
-
-                QObjectPrivate::resetCurrentSender(receiver, &currentSender, previousSender);
+                if (receiverInSameThread)
+                    QObjectPrivate::resetCurrentSender(receiver, &currentSender, previousSender);
 
                 --connectionLists->inUse;
                 Q_ASSERT(connectionLists->inUse >= 0);
@@ -3316,7 +3318,8 @@ void QMetaObject::activate(QObject *sender, const QMetaObject *m, int local_sign
 
             locker.relock();
 
-            QObjectPrivate::resetCurrentSender(receiver, &currentSender, previousSender);
+            if (receiverInSameThread)
+                QObjectPrivate::resetCurrentSender(receiver, &currentSender, previousSender);
 
             if (connectionLists->orphaned)
                 break;
diff --git a/src/corelib/kernel/qvariant.cpp b/src/corelib/kernel/qvariant.cpp
index 227a60d..07c9e53 100644
--- a/src/corelib/kernel/qvariant.cpp
+++ b/src/corelib/kernel/qvariant.cpp
@@ -484,9 +484,13 @@ static bool compare(const QVariant::Private *a, const QVariant::Private *b)
      * QMetaType::VoidStar, QMetaType::QObjectStar and so forth, is that it wouldn't include
      * user defined pointer types. */
     const char *const typeName = QMetaType::typeName(a->type);
-    if (typeName[qstrlen(typeName) - 1] == '*')
+    uint typeNameLen = qstrlen(typeName);
+    if (typeNameLen > 0 && typeName[typeNameLen - 1] == '*')
         return *static_cast<void *const *>(a_ptr) == *static_cast<void *const *>(b_ptr);
 
+    if (a->is_null && b->is_null)
+        return true;
+
     return a_ptr == b_ptr;
 }
 
diff --git a/src/corelib/thread/qmutex.h b/src/corelib/thread/qmutex.h
index 80b50fc..677412e 100644
--- a/src/corelib/thread/qmutex.h
+++ b/src/corelib/thread/qmutex.h
@@ -95,7 +95,7 @@ class Q_CORE_EXPORT QMutexLocker
 {
 public:
     inline explicit QMutexLocker(QMutex *m)
-        : mtx(m)
+        : val(reinterpret_cast<quintptr>(m))
     {
         Q_ASSERT_X((val & quintptr(1u)) == quintptr(0),
                    "QMutexLocker", "QMutex pointer is misaligned");
@@ -105,19 +105,19 @@ public:
 
     inline void unlock()
     {
-        if (mtx) {
+        if (val) {
             if ((val & quintptr(1u)) == quintptr(1u)) {
                 val &= ~quintptr(1u);
-                mtx->unlock();
+                mutex()->unlock();
             }
         }
     }
 
     inline void relock()
     {
-        if (mtx) {
+        if (val) {
             if ((val & quintptr(1u)) == quintptr(0u)) {
-                mtx->lock();
+                mutex()->lock();
                 val |= quintptr(1u);
             }
         }
@@ -140,10 +140,7 @@ public:
 private:
     Q_DISABLE_COPY(QMutexLocker)
 
-    union {
-        QMutex *mtx;
-        quintptr val;
-    };
+    quintptr val;
 };
 
 #else // QT_NO_THREAD
diff --git a/src/corelib/thread/qreadwritelock.h b/src/corelib/thread/qreadwritelock.h
index 278b8d4..9521ac3 100644
--- a/src/corelib/thread/qreadwritelock.h
+++ b/src/corelib/thread/qreadwritelock.h
@@ -96,19 +96,19 @@ public:
 
     inline void unlock()
     {
-        if (q_lock) {
+        if (q_val) {
             if ((q_val & quintptr(1u)) == quintptr(1u)) {
                 q_val &= ~quintptr(1u);
-                q_lock->unlock();
+                readWriteLock()->unlock();
             }
         }
     }
 
     inline void relock()
     {
-        if (q_lock) {
+        if (q_val) {
             if ((q_val & quintptr(1u)) == quintptr(0u)) {
-                q_lock->lockForRead();
+                readWriteLock()->lockForRead();
                 q_val |= quintptr(1u);
             }
         }
@@ -119,14 +119,11 @@ public:
 
 private:
     Q_DISABLE_COPY(QReadLocker)
-    union {
-        QReadWriteLock *q_lock;
-        quintptr q_val;
-    };
+    quintptr q_val;
 };
 
 inline QReadLocker::QReadLocker(QReadWriteLock *areadWriteLock)
-    : q_lock(areadWriteLock)
+    : q_val(reinterpret_cast<quintptr>(areadWriteLock))
 {
     Q_ASSERT_X((q_val & quintptr(1u)) == quintptr(0),
                "QReadLocker", "QReadWriteLock pointer is misaligned");
@@ -143,19 +140,19 @@ public:
 
     inline void unlock()
     {
-        if (q_lock) {
+        if (q_val) {
             if ((q_val & quintptr(1u)) == quintptr(1u)) {
                 q_val &= ~quintptr(1u);
-                q_lock->unlock();
+                readWriteLock()->unlock();
             }
         }
     }
 
     inline void relock()
     {
-        if (q_lock) {
+        if (q_val) {
             if ((q_val & quintptr(1u)) == quintptr(0u)) {
-                q_lock->lockForWrite();
+                readWriteLock()->lockForWrite();
                 q_val |= quintptr(1u);
             }
         }
@@ -167,14 +164,11 @@ public:
 
 private:
     Q_DISABLE_COPY(QWriteLocker)
-    union{
-        QReadWriteLock *q_lock;
-        quintptr q_val;
-    };
+    quintptr q_val;
 };
 
 inline QWriteLocker::QWriteLocker(QReadWriteLock *areadWriteLock)
-    : q_lock(areadWriteLock)
+    : q_val(reinterpret_cast<quintptr>(areadWriteLock))
 {
     Q_ASSERT_X((q_val & quintptr(1u)) == quintptr(0),
                "QWriteLocker", "QReadWriteLock pointer is misaligned");
diff --git a/src/corelib/tools/qregexp.cpp b/src/corelib/tools/qregexp.cpp
index 20ad444..eb104a8 100644
--- a/src/corelib/tools/qregexp.cpp
+++ b/src/corelib/tools/qregexp.cpp
@@ -523,7 +523,7 @@ int qFindString(const QChar *haystack, int haystackLen, int from,
     \endtable
 
     In the mode Wildcard, the wildcard characters cannot be
-    escaped. In the mode WildcardUnix, the character '\' escapes the
+    escaped. In the mode WildcardUnix, the character '\\' escapes the
     wildcard.
 
     For example if we are in wildcard mode and have strings which
@@ -3779,7 +3779,7 @@ static void invalidateEngine(QRegExpPrivate *priv)
 
     \value WildcardUnix This is similar to Wildcard but with the
     behavior of a Unix shell. The wildcard characters can be escaped
-    with the character "\".
+    with the character "\\".
 
     \value FixedString The pattern is a fixed string. This is
     equivalent to using the RegExp pattern on a string in
diff --git a/src/corelib/tools/qstring.cpp b/src/corelib/tools/qstring.cpp
index e9b7b9a..eff87e8 100644
--- a/src/corelib/tools/qstring.cpp
+++ b/src/corelib/tools/qstring.cpp
@@ -3227,7 +3227,7 @@ QString QString::section(const QRegExp &reg, int start, int end, SectionFlags fl
         if (!empty || !(flags & SectionSkipEmpty))
             x++;
     }
-    if((flags & SectionIncludeLeadingSep)) {
+    if((flags & SectionIncludeLeadingSep) && first_i < sections.size()) {
         const qt_section_chunk &section = sections.at(first_i);
         ret.prepend(section.string.left(section.length));
     }