Merge remote branch 'qt/4.7' into lighthouse-4.7

Conflicts:
	src/gui/painting/qpdf.cpp

8 files changed, 214 insertions, 131 deletions

diff --git a/src/corelib/kernel/qcoreapplication.cpp b/src/corelib/kernel/qcoreapplication.cpp
index 512e193..d3f399b 100644
--- a/src/corelib/kernel/qcoreapplication.cpp
+++ b/src/corelib/kernel/qcoreapplication.cpp
@@ -2091,7 +2091,8 @@ QStringList QCoreApplication::arguments()
                 l1arg == "-stylesheet" ||
                 l1arg == "-widgetcount")
                 ;
-            else if (l1arg.startsWith("-style="))
+            else if (l1arg.startsWith("-style=") ||
+                     l1arg.startsWith("-qmljsdebugger="))
                 ;
             else if (l1arg == "-style" ||
                      l1arg == "-session" ||
diff --git a/src/corelib/kernel/qeventdispatcher_symbian.cpp b/src/corelib/kernel/qeventdispatcher_symbian.cpp
index 5cc6ae3..d8cc344 100644
--- a/src/corelib/kernel/qeventdispatcher_symbian.cpp
+++ b/src/corelib/kernel/qeventdispatcher_symbian.cpp
@@ -127,9 +127,9 @@ private:
  * cannot change active objects that we do not own, but the active objects that Qt owns will use
  * this as a base class with convenience functions.
  *
- * Here is how it works: On every RunL, the deriving class should call okToRun(). This will allow
- * exactly one run of the active object, and mark it as such. If it is called again, it will return
- * false, and add the object to a queue so it can be run later.
+ * Here is how it works: On every RunL, the deriving class should call maybeQueueForLater().
+ * This will return whether the active object has been queued, or whether it should run immediately.
+ * Queued objects will run again after other events have been processed.
  *
  * The QCompleteDeferredAOs class is a special object that runs after all others, which will
  * reactivate the objects that were previously not run.
@@ -149,7 +149,7 @@ QActiveObject::~QActiveObject()
         m_dispatcher->removeDeferredActiveObject(this);
 }
 
-bool QActiveObject::okToRun()
+bool QActiveObject::maybeQueueForLater()
 {
     Q_ASSERT(!m_hasRunAgain);
 
@@ -157,12 +157,12 @@ bool QActiveObject::okToRun()
         // First occurrence of this event in this iteration.
         m_hasAlreadyRun = true;
         m_iterationCount = m_dispatcher->iterationCount();
-        return true;
+        return false;
     } else {
         // The event has already occurred.
         m_dispatcher->addDeferredActiveObject(this);
         m_hasRunAgain = true;
-        return false;
+        return true;
     }
 }
 
@@ -178,8 +178,7 @@ void QActiveObject::reactivateAndComplete()
 }
 
 QWakeUpActiveObject::QWakeUpActiveObject(QEventDispatcherSymbian *dispatcher)
-    : CActive(WAKE_UP_PRIORITY),
-      m_dispatcher(dispatcher)
+    : QActiveObject(WAKE_UP_PRIORITY, dispatcher)
 {
     CActiveScheduler::Add(this);
     iStatus = KRequestPending;
@@ -201,6 +200,9 @@ void QWakeUpActiveObject::DoCancel()
 
 void QWakeUpActiveObject::RunL()
 {
+    if (maybeQueueForLater())
+        return;
+
     iStatus = KRequestPending;
     SetActive();
     QT_TRYCATCH_LEAVING(m_dispatcher->wakeUpWasCalled());
@@ -270,7 +272,7 @@ void QTimerActiveObject::Run()
         return;
     }
 
-    if (!okToRun())
+    if (maybeQueueForLater())
         return;
 
     if (m_timerInfo->interval > 0) {
@@ -630,7 +632,7 @@ void QSocketActiveObject::DoCancel()
 
 void QSocketActiveObject::RunL()
 {
-    if (!okToRun())
+    if (maybeQueueForLater())
         return;
 
     QT_TRYCATCH_LEAVING(m_dispatcher->socketFired(this));
@@ -722,6 +724,7 @@ QEventDispatcherSymbian::QEventDispatcherSymbian(QObject *parent)
       m_interrupt(false),
       m_wakeUpDone(0),
       m_iterationCount(0),
+      m_insideTimerEvent(false),
       m_noSocketEvents(false)
 {
 #ifdef QT_SYMBIAN_PRIORITY_DROP
@@ -772,6 +775,9 @@ bool QEventDispatcherSymbian::processEvents ( QEventLoop::ProcessEventsFlags fla
 {
     bool handledAnyEvent = false;
     bool oldNoSocketEventsValue = m_noSocketEvents;
+    bool oldInsideTimerEventValue = m_insideTimerEvent;
+
+    m_insideTimerEvent = false;
 
     QT_TRY {
         Q_D(QAbstractEventDispatcher);
@@ -862,6 +868,7 @@ bool QEventDispatcherSymbian::processEvents ( QEventLoop::ProcessEventsFlags fla
     }
 
     m_noSocketEvents = oldNoSocketEventsValue;
+    m_insideTimerEvent = oldInsideTimerEventValue;
 
     return handledAnyEvent;
 }
@@ -882,10 +889,13 @@ void QEventDispatcherSymbian::timerFired(int timerId)
     }
 
     timerInfo->inTimerEvent = true;
+    bool oldInsideTimerEventValue = m_insideTimerEvent;
+    m_insideTimerEvent = true;
 
     QTimerEvent event(timerInfo->timerId);
     QCoreApplication::sendEvent(timerInfo->receiver, &event);
 
+    m_insideTimerEvent = oldInsideTimerEventValue;
     timerInfo->inTimerEvent = false;
 
     return;
@@ -1052,6 +1062,14 @@ void QEventDispatcherSymbian::registerTimer ( int timerId, int interval, QObject
     m_timerList.insert(timerId, timer);
 
     timer->timerAO->Start();
+
+    if (m_insideTimerEvent)
+        // If we are inside a timer event, we need to prevent event starvation
+        // by preventing newly created timers from running in the same event processing
+        // iteration. Do this by calling the maybeQueueForLater() function to "fake" that we have
+        // already run once. This will cause the next run to be added to the deferred
+        // queue instead.
+        timer->timerAO->maybeQueueForLater();
 }
 
 bool QEventDispatcherSymbian::unregisterTimer ( int timerId )
diff --git a/src/corelib/kernel/qeventdispatcher_symbian_p.h b/src/corelib/kernel/qeventdispatcher_symbian_p.h
index bc42753..1486db5 100644
--- a/src/corelib/kernel/qeventdispatcher_symbian_p.h
+++ b/src/corelib/kernel/qeventdispatcher_symbian_p.h
@@ -82,7 +82,7 @@ public:
     QActiveObject(TInt priority, QEventDispatcherSymbian *dispatcher);
     ~QActiveObject();
 
-    bool okToRun();
+    bool maybeQueueForLater();
 
     void reactivateAndComplete();
 
@@ -95,7 +95,7 @@ private:
     int m_iterationCount;
 };
 
-class QWakeUpActiveObject : public CActive
+class QWakeUpActiveObject : public QActiveObject
 {
 public:
     QWakeUpActiveObject(QEventDispatcherSymbian *dispatcher);
@@ -106,9 +106,6 @@ public:
 protected:
     void DoCancel();
     void RunL();
-
-private:
-    QEventDispatcherSymbian *m_dispatcher;
 };
 
 struct SymbianTimerInfo : public QSharedData
@@ -277,6 +274,7 @@ private:
     QAtomicInt m_wakeUpDone;
 
     unsigned char m_iterationCount;
+    bool m_insideTimerEvent;
     bool m_noSocketEvents;
     QList<QSocketActiveObject *> m_deferredSocketEvents;
 
diff --git a/src/corelib/kernel/qeventdispatcher_unix.cpp b/src/corelib/kernel/qeventdispatcher_unix.cpp
index 72f3c0e..b2b9806 100644
--- a/src/corelib/kernel/qeventdispatcher_unix.cpp
+++ b/src/corelib/kernel/qeventdispatcher_unix.cpp
@@ -557,18 +557,22 @@ int QTimerInfoList::activateTimers()
     if (qt_disable_lowpriority_timers || isEmpty())
         return 0; // nothing to do
 
-    bool firstTime = true;
-    timeval currentTime;
-    int n_act = 0, maxCount = count();
+    int n_act = 0, maxCount = 0;
     firstTimerInfo = 0;
 
-    while (maxCount--) {
-        currentTime = updateCurrentTime();
-        if (firstTime) {
-            repairTimersIfNeeded();
-            firstTime = false;
-        }
+    timeval currentTime = updateCurrentTime();
+    repairTimersIfNeeded();
+
 
+    // Find out how many timer have expired
+    for (QTimerInfoList::const_iterator it = constBegin(); it != constEnd(); ++it) {
+        if (currentTime < (*it)->timeout)
+            break;
+        maxCount++;
+    }
+
+    //fire the timers.
+    while (maxCount--) {
         if (isEmpty())
             break;
 
diff --git a/src/corelib/kernel/qmath.qdoc b/src/corelib/kernel/qmath.qdoc
new file mode 100644
index 0000000..48f74b6
--- /dev/null
+++ b/src/corelib/kernel/qmath.qdoc
@@ -0,0 +1,155 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:FDL$
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in a
+** written agreement between you and Nokia.
+**
+** GNU Free Documentation License
+** Alternatively, this file may be used under the terms of the GNU Free
+** Documentation License version 1.3 as published by the Free Software
+** Foundation and appearing in the file included in the packaging of this
+** file.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*! 
+    \headerfile <QtCore/qmath.h>
+    \title Math Functions
+    \ingroup funclists
+    \brief The <QtCore/qmath.h> header provides various math functions.
+    \pagekeywords math trigonometry qmath floor ceiling absolute sine cosine tangent inverse tan exponent power natural logarithm
+*/
+
+/*!
+    \fn int qCeil(qreal v)
+    Return the ceiling of the value \a v. 
+
+    The ceiling is the smallest integer that is not less than \a v.
+    For example, if \a v is 41.2, then the ceiling is 42.
+    
+    \relates <QtCore/qmath.h>
+    \sa qFloor()
+*/
+
+/*!
+    \fn int qFloor(qreal v)
+    Return the floor of the value \a v.
+
+    The floor is the largest integer that is not greater than \a v.
+    For example, if \a v is 41.2, then the floor is 41.
+
+    \relates <QtCore/qmath.h>
+    \sa qCeil()
+*/
+
+/*!
+    \fn qreal qFabs(qreal v)
+    Returns the absolute value of \a v as a qreal.
+*/
+
+/*!
+    \fn qreal qSin(qreal v)
+    Returns the sine of the angle \a v in radians.
+
+    \relates <QtCore/qmath.h>
+    \sa qCos(), qTan()
+*/
+
+/*!
+    \fn  qreal qCos(qreal v)
+    Returns the cosine of an angle \a v in radians.
+
+    \relates <QtCore/qmath.h>
+    \sa qSin(), qTan()
+*/
+
+/*!
+    \fn qreal qTan(qreal v)
+    Returns the tangent of an angle \a v in radians.
+
+    \relates <QtCore/qmath.h>
+    \sa qSin(), qCos()
+*/
+
+/*!
+    \fn qreal qAcos(qreal v)
+    Returns the arccosine of \a v as an angle in radians.
+    Arccosine is the inverse operation of cosine.
+
+    \relates <QtCore/qmath.h>
+    \sa qAtan(), qAsin(), qCos()
+*/
+
+/*!
+    \fn qreal qAsin(qreal v)
+    Returns the arcsine of \a v as an angle in radians.
+    Arcsine is the inverse operation of sine.
+
+    \relates <QtCore/qmath.h>
+    \sa qSin(), qAtan(), qAcos()
+*/
+
+/*!
+    \fn qreal qAtan(qreal v)
+    Returns the arctangent of \a v as an angle in radians.
+    Arctangent is the inverse operation of tangent.
+
+    \relates <QtCore/qmath.h>
+    \sa qTan(), qAcos(), qAsin()
+*/
+
+/*!
+    \fn qreal qAtan2(qreal x, qreal y)
+    Returns the arctangent of a point specified by the coordinates \a x and \a y.
+    This function will return the angle and its direction.
+
+    \relates <QtCore/qmath.h>
+    \sa qAtan()
+*/
+
+/*!
+    \fn qreal qSqrt(qreal v)
+    Returns the square root of \a v.
+    This function returns a NaN if \a v is a negative number.
+
+    \relates <QtCore/qmath.h>
+    \sa qPow()
+*/
+
+/*!
+    \fn qreal qLn(qreal v)
+    Returns the natural logarithm of \a v. Natural logarithm uses base e.
+
+    \relates <QtCore/qmath.h>
+    \sa qExp()
+*/
+
+/*!
+    \fn qreal qExp(qreal v)
+    Returns the exponential function of \c e to the power of \a v.
+
+    \relates <QtCore/qmath.h>
+    \sa qLn()
+*/
+
+/*!
+    \fn qreal qPow(qreal x, qreal y)
+    Returns the value of \a x raised to the power of \a y.
+    That is, \a x is the base and \a y is the exponent.
+
+    \relates <QtCore/qmath.h>
+    \sa qSqrt()
+*/
diff --git a/src/corelib/kernel/qmetatype.h b/src/corelib/kernel/qmetatype.h
index 2108b92..e16ffe8 100644
--- a/src/corelib/kernel/qmetatype.h
+++ b/src/corelib/kernel/qmetatype.h
@@ -156,7 +156,18 @@ void qMetaTypeLoadHelper(QDataStream &stream, T *t)
 }
 #endif // QT_NO_DATASTREAM
 
-template <typename T> struct QMetaTypeId2;
+template <typename T>
+struct QMetaTypeId
+{
+    enum { Defined = 0 };
+};
+
+template <typename T>
+struct QMetaTypeId2
+{
+    enum { Defined = QMetaTypeId<T>::Defined };
+    static inline int qt_metatype_id() { return QMetaTypeId<T>::qt_metatype_id(); }
+};
 
 namespace QtPrivate {
     template <typename T, bool Defined = QMetaTypeId2<T>::Defined>
@@ -210,19 +221,6 @@ void qRegisterMetaTypeStreamOperators(const char *typeName
 #endif // QT_NO_DATASTREAM
 
 template <typename T>
-struct QMetaTypeId
-{
-    enum { Defined = 0 };
-};
-
-template <typename T>
-struct QMetaTypeId2
-{
-    enum { Defined = QMetaTypeId<T>::Defined };
-    static inline int qt_metatype_id() { return QMetaTypeId<T>::qt_metatype_id(); }
-};
-
-template <typename T>
 inline int qMetaTypeId(
 #ifndef qdoc
     T * /* dummy */ = 0
diff --git a/src/corelib/kernel/qobject.h b/src/corelib/kernel/qobject.h
index 1b613a6..d98d1f0 100644
--- a/src/corelib/kernel/qobject.h
+++ b/src/corelib/kernel/qobject.h
@@ -325,95 +325,6 @@ Q_CORE_EXPORT void qt_qFindChildren_helper(const QObject *parent, const QString
                                            const QMetaObject &mo, QList<void *> *list);
 Q_CORE_EXPORT QObject *qt_qFindChild_helper(const QObject *parent, const QString &name, const QMetaObject &mo);
 
-#if defined Q_CC_MSVC && _MSC_VER < 1300
-
-template<typename T>
-inline T qFindChild(const QObject *o, const QString &name, T)
-{ return static_cast<T>(qt_qFindChild_helper(o, name, ((T)0)->staticMetaObject)); }
-
-template<typename T>
-inline QList<T> qFindChildren(const QObject *o, const QString &name, T)
-{
-    QList<T> list;
-    union {
-        QList<T> *typedList;
-        QList<void *> *voidList;
-    } u;
-    u.typedList = &list;
-    qt_qFindChildren_helper(o, name, 0, ((T)0)->staticMetaObject, u.voidList);
-    return list;
-}
-
-template<typename T>
-inline T qFindChild(const QObject *o, const QString &name)
-{ return qFindChild<T>(o, name, T(0)); }
-
-template<typename T>
-inline T qFindChild(const QObject *o)
-{ return qFindChild<T>(o, QString(), T(0)); }
-
-template<typename T>
-inline QList<T> qFindChildren(const QObject *o, const QString &name)
-{ return qFindChildren<T>(o, name, T(0)); }
-
-template<typename T>
-inline QList<T> qFindChildren(const QObject *o)
-{ return qFindChildren<T>(o, QString(), T(0)); }
-
-#ifndef QT_NO_REGEXP
-template<typename T>
-inline QList<T> qFindChildren(const QObject *o, const QRegExp &re, T)
-{
-    QList<T> list;
-    union {
-        QList<T> *typedList;
-        QList<void *> *voidList;
-    } u;
-    u.typedList = &list;
-    qt_qFindChildren_helper(o, 0, &re, ((T)0)->staticMetaObject, u.voidList);
-    return list;
-}
-
-template<typename T>
-inline QList<T> qFindChildren(const QObject *o, const QRegExp &re)
-{ return qFindChildren<T>(o, re, T(0)); }
-
-#endif
-
-#ifdef Q_MOC_RUN
-# define Q_DECLARE_INTERFACE(IFace, IId) Q_DECLARE_INTERFACE(IFace, IId)
-#endif // Q_MOC_RUN
-
-
-template <class T> inline const char * qobject_interface_iid()
-{ return 0; }
-
-template <class T> inline T qobject_cast_helper(QObject *object, T)
-{ return static_cast<T>(((T)0)->staticMetaObject.cast(object)); }
-
-template <class T> inline T qobject_cast_helper(const QObject *object, T)
-{ return static_cast<T>(const_cast<const QObject *>(((T)0)->staticMetaObject.cast(const_cast<QObject *>(object)))); }
-
-template <class T>
-inline T qobject_cast(QObject *object)
-{ return qobject_cast_helper<T>(object, T(0)); }
-
-template <class T>
-inline T qobject_cast(const QObject *object)
-{ return qobject_cast_helper<T>(object, T(0)); }
-
-#ifndef Q_MOC_RUN
-#  define Q_DECLARE_INTERFACE(IFace, IId) \
-    template <> inline const char *qobject_interface_iid<IFace *>() \
-    { return IId; } \
-    template <> inline IFace *qobject_cast_helper<IFace *>(QObject *object, IFace *) \
-    { return (IFace *)(object ? object->qt_metacast(IId) : 0); } \
-    template <> inline IFace *qobject_cast_helper<IFace *>(const QObject *object, IFace *) \
-    { return (IFace *)(object ? const_cast<QObject *>(object)->qt_metacast(IId) : 0); }
-#endif // Q_MOC_RUN
-
-#else
-
 template<typename T>
 inline T qFindChild(const QObject *o, const QString &name)
 { return static_cast<T>(qt_qFindChild_helper(o, name, reinterpret_cast<T>(0)->staticMetaObject)); }
@@ -482,8 +393,6 @@ template <class T> inline const char * qobject_interface_iid()
     { return reinterpret_cast<IFace *>((object ? const_cast<QObject *>(object)->qt_metacast(IId) : 0)); }
 #endif // Q_MOC_RUN
 
-#endif
-
 #ifndef QT_NO_DEBUG_STREAM
 Q_CORE_EXPORT QDebug operator<<(QDebug, const QObject *);
 #endif
diff --git a/src/corelib/kernel/qpointer.cpp b/src/corelib/kernel/qpointer.cpp
index 5cd0220..fbfb961 100644
--- a/src/corelib/kernel/qpointer.cpp
+++ b/src/corelib/kernel/qpointer.cpp
@@ -41,7 +41,7 @@
 
 /*!
     \class QPointer
-    \brief The QPointer class is a template class that provides guarded pointers to QObjects.
+    \brief The QPointer class is a template class that provides guarded pointers to QObject.
 
     \ingroup objectmodel