Merge branch '4.7' of scm.dev.nokia.troll.no:qt/oslo-staging-2 into 4.7-integration

* '4.7' of scm.dev.nokia.troll.no:qt/oslo-staging-2: (62 commits)
  Fix warnings
  Fix shadow building of spectrum demo
  Doc: Removed a link to missing external online documentation.
  Fixes QGraphicsItem::scroll issues
  Fixes wrong QGraphicsItemCache::boundingRect.
  changes-4.7.0 updated
  Revert "Deselect the current selection when the QItemSelectionModel::model is reset."
  add missing include
  Fix crash when using fonts in non-gui QApplication
  Deselect the current selection when the QItemSelectionModel::model is reset.
  Autotest fix on macosx
  Compile with gcc 4.0.1
  improve Unicode Normalization autotest
  more subtests for QChar
  nano optimization of canonicalOrderHelper()
  fix canonicalOrderHelper() for some corner case
  use new QChar::requiresSurrogates() instead of hardcoded value
  prevent fake normalization
  prefer QChar::*surrogate() over hardcoded values
  Doc: Updated example license to three clause BSD license.
  ...

19 files changed, 158 insertions, 227 deletions

diff --git a/src/corelib/thread/qreadwritelock.cpp b/src/corelib/thread/qreadwritelock.cpp
index bd07a97..1a9eb0b 100644
--- a/src/corelib/thread/qreadwritelock.cpp
+++ b/src/corelib/thread/qreadwritelock.cpp
@@ -252,7 +252,7 @@ bool QReadWriteLock::tryLockForRead(int timeout)
 
     while (d->accessCount < 0 || d->waitingWriters) {
         ++d->waitingReaders;
-        bool success = d->readerWait.wait(&d->mutex, timeout < 0 ? ULONG_MAX : timeout);
+        bool success = d->readerWait.wait(&d->mutex, timeout < 0 ? ULONG_MAX : ulong(timeout));
         --d->waitingReaders;
         if (!success)
             return false;
@@ -374,7 +374,7 @@ bool QReadWriteLock::tryLockForWrite(int timeout)
 
     while (d->accessCount != 0) {
         ++d->waitingWriters;
-        bool success = d->writerWait.wait(&d->mutex, timeout < 0 ? ULONG_MAX : timeout);
+        bool success = d->writerWait.wait(&d->mutex, timeout < 0 ? ULONG_MAX : ulong(timeout));
         --d->waitingWriters;
 
         if (!success)
diff --git a/src/corelib/thread/qwaitcondition_unix.cpp b/src/corelib/thread/qwaitcondition_unix.cpp
index 4a05dd8..b371b0e 100644
--- a/src/corelib/thread/qwaitcondition_unix.cpp
+++ b/src/corelib/thread/qwaitcondition_unix.cpp
@@ -63,7 +63,8 @@ static void report_error(int code, const char *where, const char *what)
 
 
 
-struct QWaitConditionPrivate {
+class QWaitConditionPrivate {
+public:
     pthread_mutex_t mutex;
     pthread_cond_t cond;
     int waiters;
diff --git a/src/corelib/tools/qchar.cpp b/src/corelib/tools/qchar.cpp
index ddb1516..ed0af4e 100644
--- a/src/corelib/tools/qchar.cpp
+++ b/src/corelib/tools/qchar.cpp
@@ -1480,9 +1480,9 @@ static void decomposeHelper(QString *str, bool canonical, QChar::UnicodeVersion
         if (!d || (canonical && tag != QChar::Canonical))
             continue;
 
-        s.replace(uc - utf16, ucs4 > 0x10000 ? 2 : 1, (const QChar *)d, length);
-        // since the insert invalidates the pointers and we do decomposition recursive
         int pos = uc - utf16;
+        s.replace(pos, QChar::requiresSurrogates(ucs4) ? 2 : 1, reinterpret_cast<const QChar *>(d), length);
+        // since the insert invalidates the pointers and we do decomposition recursive
         utf16 = reinterpret_cast<unsigned short *>(s.data());
         uc = utf16 + pos + length;
     }
@@ -1567,46 +1567,52 @@ static void canonicalOrderHelper(QString *str, QChar::UnicodeVersion version, in
         int p2 = pos+1;
         uint u1 = s.at(pos).unicode();
         if (QChar(u1).isHighSurrogate()) {
-            ushort low = s.at(pos+1).unicode();
+            ushort low = s.at(p2).unicode();
             if (QChar(low).isLowSurrogate()) {
-                p2++;
                 u1 = QChar::surrogateToUcs4(u1, low);
                 if (p2 >= l)
                     break;
+                ++p2;
             }
         }
         uint u2 = s.at(p2).unicode();
-        if (QChar(u2).isHighSurrogate() && p2 < l-1) {
+        if (QChar(u2).isHighSurrogate() && p2 < l) {
             ushort low = s.at(p2+1).unicode();
             if (QChar(low).isLowSurrogate()) {
-                p2++;
                 u2 = QChar::surrogateToUcs4(u2, low);
+                ++p2;
             }
         }
 
-        int c2 = QChar::combiningClass(u2);
-        if (QChar::unicodeVersion(u2) > version)
-            c2 = 0;
-
+        ushort c2 = 0;
+        {
+            const QUnicodeTables::Properties *p = qGetProp(u2);
+            if ((QChar::UnicodeVersion)p->unicodeVersion <= version)
+                c2 = p->combiningClass;
+        }
         if (c2 == 0) {
             pos = p2+1;
             continue;
         }
-        int c1 = QChar::combiningClass(u1);
-        if (QChar::unicodeVersion(u1) > version)
-            c1 = 0;
+
+        ushort c1 = 0;
+        {
+            const QUnicodeTables::Properties *p = qGetProp(u1);
+            if ((QChar::UnicodeVersion)p->unicodeVersion <= version)
+                c1 = p->combiningClass;
+        }
 
         if (c1 > c2) {
             QChar *uc = s.data();
             int p = pos;
             // exchange characters
-            if (u2 < 0x10000) {
+            if (!QChar::requiresSurrogates(u2)) {
                 uc[p++] = u2;
             } else {
                 uc[p++] = QChar::highSurrogate(u2);
                 uc[p++] = QChar::lowSurrogate(u2);
             }
-            if (u1 < 0x10000) {
+            if (!QChar::requiresSurrogates(u1)) {
                 uc[p++] = u1;
             } else {
                 uc[p++] = QChar::highSurrogate(u1);
@@ -1618,7 +1624,7 @@ static void canonicalOrderHelper(QString *str, QChar::UnicodeVersion version, in
                 --pos;
         } else {
             ++pos;
-            if (u1 > 0x10000)
+            if (QChar::requiresSurrogates(u1))
                 ++pos;
         }
     }
diff --git a/src/corelib/tools/qstring.cpp b/src/corelib/tools/qstring.cpp
index 612c492..6acbcec 100644
--- a/src/corelib/tools/qstring.cpp
+++ b/src/corelib/tools/qstring.cpp
@@ -939,11 +939,11 @@ int QString::toWCharArray(wchar_t *array) const
         const unsigned short *uc = utf16();
         for (int i = 0; i < length(); ++i) {
             uint u = uc[i];
-            if (u >= 0xd800 && u < 0xdc00 && i < length()-1) {
+            if (QChar::isHighSurrogate(u) && i + 1 < length()) {
                 ushort low = uc[i+1];
-                if (low >= 0xdc00 && low < 0xe000) {
+                if (QChar::isLowSurrogate(low)) {
+                    u = QChar::surrogateToUcs4(u, low);
                     ++i;
-                    u = (u - 0xd800)*0x400 + (low - 0xdc00) + 0x10000;
                 }
             }
             *a = wchar_t(u);
@@ -6195,8 +6195,10 @@ void qt_string_normalize(QString *data, QString::NormalizationForm mode, QChar::
     if (simple)
         return;
 
-    QString &s = *data;
-    if (version != UNICODE_DATA_VERSION) {
+    if (version == QChar::Unicode_Unassigned) {
+        version = UNICODE_DATA_VERSION;
+    } else if (version != UNICODE_DATA_VERSION) {
+        QString &s = *data;
         for (int i = 0; i < NumNormalizationCorrections; ++i) {
             const NormalizationCorrection &n = uc_normalization_corrections[i];
             if (n.version > version) {
diff --git a/src/gui/graphicsview/qgraphicsitem.cpp b/src/gui/graphicsview/qgraphicsitem.cpp
index dfd58b3..db6c4c5 100644
--- a/src/gui/graphicsview/qgraphicsitem.cpp
+++ b/src/gui/graphicsview/qgraphicsitem.cpp
@@ -5643,6 +5643,14 @@ void QGraphicsItem::update(const QRectF &rect)
     viewport, which does not benefit from scroll optimizations), this function
     is equivalent to calling update(\a rect).
 
+    \bold{Note:} Scrolling is only supported when QGraphicsItem::ItemCoordinateCache
+    is enabled; in all other cases calling this function is equivalent to calling
+    update(\a rect). If you for sure know that the item is opaque and not overlapped
+    by other items, you can map the \a rect to viewport coordinates and scroll the
+    viewport.
+
+    \snippet doc/src/snippets/code/src_gui_graphicsview_qgraphicsitem.cpp 19
+
     \sa boundingRect()
 */
 void QGraphicsItem::scroll(qreal dx, qreal dy, const QRectF &rect)
@@ -5652,153 +5660,73 @@ void QGraphicsItem::scroll(qreal dx, qreal dy, const QRectF &rect)
         return;
     if (!d->scene)
         return;
-    if (d->cacheMode != NoCache) {
-        QGraphicsItemCache *c;
-        bool scrollCache = qFuzzyIsNull(dx - int(dx)) && qFuzzyIsNull(dy - int(dy))
-                           && (c = (QGraphicsItemCache *)qVariantValue<void *>(d_ptr->extra(QGraphicsItemPrivate::ExtraCacheData)))
-                           && (d->cacheMode == ItemCoordinateCache && !c->fixedSize.isValid());
-        if (scrollCache) {
-            QPixmap pix;
-            if (QPixmapCache::find(c->key, &pix)) {
-                // Adjust with 2 pixel margin. Notice the loss of precision
-                // when converting to QRect.
-                int adjust = 2;
-                QRectF scrollRect = !rect.isNull() ? rect : boundingRect();
-                QRectF br = boundingRect().adjusted(-adjust, -adjust, adjust, adjust);
-                QRect irect = scrollRect.toRect().translated(-br.x(), -br.y());
-
-                pix.scroll(dx, dy, irect);
-
-                QPixmapCache::replace(c->key, pix);
-
-                // Translate the existing expose.
-                foreach (QRectF exposedRect, c->exposed)
-                    c->exposed += exposedRect.translated(dx, dy) & scrollRect;
-
-                // Calculate exposure.
-                QRegion exposed;
-                QRect r = scrollRect.toRect();
-                exposed += r;
-                exposed -= r.translated(dx, dy);
-                foreach (QRect rect, exposed.rects())
-                    update(rect);
-                d->scene->d_func()->markDirty(this);
-            } else {
-                update(rect);
-            }
-        } else {
-            // ### This is very slow, and can be done much better. If the cache is
-            // local and matches the below criteria for rotation and scaling, we
-            // can easily scroll. And if the cache is in device coordinates, we
-            // can scroll both the viewport and the cache.
-            update(rect);
-        }
+
+    // Accelerated scrolling means moving pixels from one location to another
+    // and only redraw the newly exposed area. The following requirements must
+    // be fulfilled in order to do that:
+    //
+    // 1) Item is opaque.
+    // 2) Item is not overlapped by other items.
+    //
+    // There's (yet) no way to detect whether an item is opaque or not, which means
+    // we cannot do accelerated scrolling unless the cache is enabled. In case of using
+    // DeviceCoordinate cache we also have to take the device transform into account in
+    // order to determine whether we can do accelerated scrolling or not. That's left out
+    // for simplicity here, but it is definitely something we can consider in the future
+    // as a performance improvement.
+    if (d->cacheMode != QGraphicsItem::ItemCoordinateCache
+        || !qFuzzyIsNull(dx - int(dx)) || !qFuzzyIsNull(dy - int(dy))) {
+        update(rect);
         return;
     }
 
-    QRectF scrollRect = !rect.isNull() ? rect : boundingRect();
-    int couldntScroll = d->scene->views().size();
-    foreach (QGraphicsView *view, d->scene->views()) {
-        if (view->viewport()->inherits("QGLWidget")) {
-            // ### Please replace with a widget attribute; any widget that
-            // doesn't support partial updates / doesn't support scrolling
-            // should be skipped in this code. Qt::WA_NoPartialUpdates or so.
-            continue;
-        }
+    QGraphicsItemCache *cache = d->extraItemCache();
+    if (cache->allExposed || cache->fixedSize.isValid()) {
+        // Cache is either invalidated or item is scaled (see QGraphicsItem::setCacheMode).
+        update(rect);
+        return;
+    }
 
-        static const QLineF up(0, 0, 0, -1);
-        static const QLineF down(0, 0, 0, 1);
-        static const QLineF left(0, 0, -1, 0);
-        static const QLineF right(0, 0, 1, 0);
-
-        QTransform deviceTr = deviceTransform(view->viewportTransform());
-        QRect deviceScrollRect = deviceTr.mapRect(scrollRect).toRect();
-        QLineF v1 = deviceTr.map(right);
-        QLineF v2 = deviceTr.map(down);
-        QLineF u1 = v1.unitVector(); u1.translate(-v1.p1());
-        QLineF u2 = v2.unitVector(); u2.translate(-v2.p1());
-        bool noScroll = false;
-
-        // Check if the delta resolves to ints in device space.
-        QPointF deviceDelta = deviceTr.map(QPointF(dx, dy));
-        if ((deviceDelta.x() - int(deviceDelta.x()))
-            || (deviceDelta.y() - int(deviceDelta.y()))) {
-            noScroll = true;
-        } else {
-            // Check if the unit vectors have no fraction in device space.
-            qreal v1l = v1.length();
-            if (v1l - int(v1l)) {
-                noScroll = true;
-            } else {
-                dx *= v1.length();
-            }
-            qreal v2l = v2.length();
-            if (v2l - int(v2l)) {
-                noScroll = true;
-            } else {
-                dy *= v2.length();
-            }
-        }
+    QPixmap cachedPixmap;
+    if (!QPixmapCache::find(cache->key, &cachedPixmap)) {
+        update(rect);
+        return;
+    }
 
-        if (!noScroll) {
-            if (u1 == right) {
-                if (u2 == up) {
-                    // flipped
-                    dy = -dy;
-                } else if (u2 == down) {
-                    // normal
-                } else {
-                    noScroll = true;
-                }
-            } else if (u1 == left) {
-                if (u2 == up) {
-                    // mirrored & flipped / rotated 180 degrees
-                    dx = -dx;
-                    dy = -dy;
-                } else if (u2 == down) {
-                    // mirrored
-                    dx = -dx;
-                } else {
-                    noScroll = true;
-                }
-            } else if (u1 == up) {
-                if (u2 == left) {
-                    // rotated -90 & mirrored
-                    qreal tmp = dy;
-                    dy = -dx;
-                    dx = -tmp;
-                } else if (u2 == right) {
-                    // rotated -90
-                    qreal tmp = dy;
-                    dy = -dx;
-                    dx = tmp;
-                } else {
-                    noScroll = true;
-                }
-            } else if (u1 == down) {
-                if (u2 == left) {
-                    // rotated 90
-                    qreal tmp = dy;
-                    dy = dx;
-                    dx = -tmp;
-                } else if (u2 == right) {
-                    // rotated 90 & mirrored
-                    qreal tmp = dy;
-                    dy = dx;
-                    dx = tmp;
-                } else {
-                    noScroll = true;
-                }
-            }
-        }
+    QRegion exposed;
+    const bool scrollEntirePixmap = rect.isNull();
+    if (scrollEntirePixmap) {
+        // Scroll entire pixmap.
+        cachedPixmap.scroll(dx, dy, cachedPixmap.rect(), &exposed);
+    } else {
+        if (!rect.intersects(cache->boundingRect))
+            return; // Nothing to scroll.
+        // Scroll sub-rect of pixmap. The rect is in item coordinates
+        // so we have to translate it to pixmap coordinates.
+        QRect scrollRect = rect.toAlignedRect();
+        cachedPixmap.scroll(dx, dy, scrollRect.translated(-cache->boundingRect.topLeft()), &exposed);
+    }
 
-        if (!noScroll) {
-            view->viewport()->scroll(int(dx), int(dy), deviceScrollRect);
-            --couldntScroll;
-        }
+    QPixmapCache::replace(cache->key, cachedPixmap);
+
+    // Translate the existing expose.
+    for (int i = 0; i < cache->exposed.size(); ++i) {
+        QRectF &e = cache->exposed[i];
+        if (!scrollEntirePixmap && !e.intersects(rect))
+            continue;
+        e.translate(dx, dy);
     }
-    if (couldntScroll)
-        update(rect);
+
+    // Append newly exposed areas. Note that the exposed region is currently
+    // in pixmap coordinates, so we have to translate it to item coordinates.
+    exposed.translate(cache->boundingRect.topLeft());
+    const QVector<QRect> exposedRects = exposed.rects();
+    for (int i = 0; i < exposedRects.size(); ++i)
+        cache->exposed += exposedRects.at(i);
+
+    // Trigger update. This will redraw the newly exposed area and make sure
+    // the pixmap is re-blitted in case there are overlapping items.
+    d->scene->d_func()->markDirty(this, rect);
 }
 
 /*!
diff --git a/src/gui/graphicsview/qgraphicsscene.cpp b/src/gui/graphicsview/qgraphicsscene.cpp
index 4b09a7e..344df30 100644
--- a/src/gui/graphicsview/qgraphicsscene.cpp
+++ b/src/gui/graphicsview/qgraphicsscene.cpp
@@ -4372,11 +4372,6 @@ void QGraphicsScenePrivate::drawItemHelper(QGraphicsItem *item, QPainter *painte
     bool pixmapFound;
     QGraphicsItemCache *itemCache = itemd->extraItemCache();
     if (cacheMode == QGraphicsItem::ItemCoordinateCache) {
-        if (itemCache->boundingRect != brect.toRect()) {
-            itemCache->boundingRect = brect.toRect();
-            itemCache->allExposed = true;
-            itemCache->exposed.clear();
-        }
         pixmapKey = itemCache->key;
     } else {
         pixmapKey = itemCache->deviceData.value(widget).key;
@@ -4389,19 +4384,24 @@ void QGraphicsScenePrivate::drawItemHelper(QGraphicsItem *item, QPainter *painte
     if (cacheMode == QGraphicsItem::ItemCoordinateCache) {
         QSize pixmapSize;
         bool fixedCacheSize = false;
-        QRectF brectAligned = brect.toAlignedRect();
+        QRect br = brect.toAlignedRect();
         if ((fixedCacheSize = itemCache->fixedSize.isValid())) {
             pixmapSize = itemCache->fixedSize;
         } else {
-            pixmapSize = brectAligned.size().toSize();
+            pixmapSize = br.size();
         }
 
         // Create or recreate the pixmap.
         int adjust = itemCache->fixedSize.isValid() ? 0 : 2;
         QSize adjustSize(adjust*2, adjust*2);
-        QRectF br = brectAligned.adjusted(-adjust, -adjust, adjust, adjust);
+        br.adjust(-adjust, -adjust, adjust, adjust);
         if (pix.isNull() || (!fixedCacheSize && (pixmapSize + adjustSize) != pix.size())) {
             pix = QPixmap(pixmapSize + adjustSize);
+            itemCache->boundingRect = br;
+            itemCache->exposed.clear();
+            itemCache->allExposed = true;
+        } else if (itemCache->boundingRect != br) {
+            itemCache->boundingRect = br;
             itemCache->exposed.clear();
             itemCache->allExposed = true;
         }
@@ -4455,10 +4455,10 @@ void QGraphicsScenePrivate::drawItemHelper(QGraphicsItem *item, QPainter *painte
         // qpixmap-image-transform-pixmap roundtrip.
         if (newPainterOpacity != oldPainterOpacity) {
             painter->setOpacity(newPainterOpacity);
-            painter->drawPixmap(br, pix, QRectF(QPointF(), pix.size()));
+            painter->drawPixmap(br.topLeft(), pix);
             painter->setOpacity(oldPainterOpacity);
         } else {
-            painter->drawPixmap(br, pix, QRectF(QPointF(), pix.size()));
+            painter->drawPixmap(br.topLeft(), pix);
         }
         return;
     }
diff --git a/src/gui/image/qicon.cpp b/src/gui/image/qicon.cpp
index 7696632..a2f429a 100644
--- a/src/gui/image/qicon.cpp
+++ b/src/gui/image/qicon.cpp
@@ -55,7 +55,6 @@
 #include "qcache.h"
 #include "qdebug.h"
 #include "private/qguiplatformplugin_p.h"
-#include "private/qstylehelper_p.h"
 
 #ifdef Q_WS_MAC
 #include <private/qt_mac_p.h>
@@ -67,6 +66,8 @@
 #include "private/qkde_p.h"
 #endif
 
+#include "private/qstylehelper_p.h"
+
 #ifndef QT_NO_ICON
 QT_BEGIN_NAMESPACE
 
diff --git a/src/gui/styles/qcleanlooksstyle.cpp b/src/gui/styles/qcleanlooksstyle.cpp
index d9f7df0..883f511 100644
--- a/src/gui/styles/qcleanlooksstyle.cpp
+++ b/src/gui/styles/qcleanlooksstyle.cpp
@@ -44,7 +44,6 @@
 
 #if !defined(QT_NO_STYLE_CLEANLOOKS) || defined(QT_PLUGIN)
 
-#include <private/qstylehelper_p.h>
 #include "qwindowsstyle_p.h"
 #include <qcombobox.h>
 #include <qpushbutton.h>
@@ -67,6 +66,7 @@
 #include <qtoolbar.h>
 #include <qwizard.h>
 #include <qlibrary.h>
+#include <private/qstylehelper_p.h>
 
 #define CL_MAX(a,b) (a)>(b) ? (a):(b) // ### qMin/qMax does not work for vc6
 #define CL_MIN(a,b) (a)<(b) ? (a):(b) // remove this when it is working
diff --git a/src/gui/styles/qcommonstyle.cpp b/src/gui/styles/qcommonstyle.cpp
index 8036728..4978565 100644
--- a/src/gui/styles/qcommonstyle.cpp
+++ b/src/gui/styles/qcommonstyle.cpp
@@ -65,7 +65,6 @@
 #include <qrubberband.h>
 #include <private/qcommonstylepixmaps_p.h>
 #include <private/qmath_p.h>
-#include <private/qstylehelper_p.h>
 #include <qdebug.h>
 #include <qtextformat.h>
 #include <qwizard.h>
@@ -88,6 +87,8 @@
 #   include <private/qt_cocoa_helpers_mac_p.h>
 #endif
 
+#include <private/qstylehelper_p.h>
+
 QT_BEGIN_NAMESPACE
 
 /*!
diff --git a/src/gui/styles/qmacstyle_mac.mm b/src/gui/styles/qmacstyle_mac.mm
index e065bcc..2e2f374 100644
--- a/src/gui/styles/qmacstyle_mac.mm
+++ b/src/gui/styles/qmacstyle_mac.mm
@@ -56,7 +56,6 @@
 #include <private/qpaintengine_mac_p.h>
 #include <private/qpainter_p.h>
 #include <private/qprintengine_mac_p.h>
-#include <private/qstylehelper_p.h>
 #include <qapplication.h>
 #include <qbitmap.h>
 #include <qcheckbox.h>
@@ -101,6 +100,7 @@
 #include <QtGui/qgraphicsproxywidget.h>
 #include <QtGui/qgraphicsview.h>
 #include <private/qt_cocoa_helpers_mac_p.h>
+#include <private/qstylehelper_p.h>
 
 QT_BEGIN_NAMESPACE
 
diff --git a/src/gui/styles/qplastiquestyle.cpp b/src/gui/styles/qplastiquestyle.cpp
index fbb5e4d..c8711f6 100644
--- a/src/gui/styles/qplastiquestyle.cpp
+++ b/src/gui/styles/qplastiquestyle.cpp
@@ -50,7 +50,6 @@ static const int ProgressBarFps = 25;
 static const int blueFrameWidth =  2;  // with of line edit focus frame
 
 #include "qwindowsstyle_p.h"
-#include <private/qstylehelper_p.h>
 #include <qapplication.h>
 #include <qbitmap.h>
 #include <qabstractitemview.h>
@@ -88,6 +87,7 @@ static const int blueFrameWidth =  2;  // with of line edit focus frame
 #include <qprocess.h>
 #include <qvarlengtharray.h>
 #include <limits.h>
+#include <private/qstylehelper_p.h>
 
 QT_BEGIN_NAMESPACE
 
diff --git a/src/gui/styles/qproxystyle.cpp b/src/gui/styles/qproxystyle.cpp
index 5235350..511c025 100644
--- a/src/gui/styles/qproxystyle.cpp
+++ b/src/gui/styles/qproxystyle.cpp
@@ -40,11 +40,11 @@
 ****************************************************************************/
 
 #include <qstyle.h>
-#include <private/qstyle_p.h>
 #include <private/qproxystyle_p.h>
 #include <private/qapplication_p.h>
 #include "qproxystyle.h"
 #include "qstylefactory.h"
+#include <private/qstyle_p.h>
 
 #if !defined(QT_NO_STYLE_PROXY) || defined(QT_PLUGIN)
 
diff --git a/src/gui/styles/qstyle_p.h b/src/gui/styles/qstyle_p.h
index 4729032..745092f 100644
--- a/src/gui/styles/qstyle_p.h
+++ b/src/gui/styles/qstyle_p.h
@@ -43,7 +43,6 @@
 #define QSTYLE_P_H
 
 #include "private/qobject_p.h"
-#include "private/qstylehelper_p.h"
 #include <QtGui/qstyle.h>
 
 QT_BEGIN_NAMESPACE
diff --git a/src/gui/styles/qstylehelper.cpp b/src/gui/styles/qstylehelper.cpp
index d09d7fa..ccdbf8c 100644
--- a/src/gui/styles/qstylehelper.cpp
+++ b/src/gui/styles/qstylehelper.cpp
@@ -39,8 +39,6 @@
 **
 ****************************************************************************/
 
-#include "qstylehelper_p.h"
-
 #include <qstyleoption.h>
 #include <qpainter.h>
 #include <qpixmapcache.h>
@@ -54,6 +52,7 @@
 #include <private/qt_cocoa_helpers_mac_p.h>
 #endif
 
+#include "qstylehelper_p.h"
 #include <qstringbuilder.h>
 
 QT_BEGIN_NAMESPACE
diff --git a/src/gui/styles/qwindowsmobilestyle.cpp b/src/gui/styles/qwindowsmobilestyle.cpp
index 67eb1ef..4e7b92c 100644
--- a/src/gui/styles/qwindowsmobilestyle.cpp
+++ b/src/gui/styles/qwindowsmobilestyle.cpp
@@ -80,6 +80,8 @@ extern bool qt_wince_is_smartphone();        //defined in qguifunctions_wince.cp
 extern bool qt_wince_is_windows_mobile_65(); //defined in qguifunctions_wince.cpp
 #endif // Q_WS_WINCE
 
+#include "qstylehelper_p.h"
+
 QT_BEGIN_NAMESPACE
 
 static const int windowsItemFrame        =  1; // menu item frame width
diff --git a/src/gui/styles/qwindowsstyle.cpp b/src/gui/styles/qwindowsstyle.cpp
index 1653baa..0314c6f 100644
--- a/src/gui/styles/qwindowsstyle.cpp
+++ b/src/gui/styles/qwindowsstyle.cpp
@@ -41,7 +41,6 @@
 
 #include "qwindowsstyle.h"
 #include "qwindowsstyle_p.h"
-#include <private/qstylehelper_p.h>
 
 #if !defined(QT_NO_STYLE_WINDOWS) || defined(QT_PLUGIN)
 
@@ -70,13 +69,14 @@
 #include <private/qmath_p.h>
 #include <qmath.h>
 
-
 #ifdef Q_WS_X11
 #include "qfileinfo.h"
 #include "qdir.h"
 #include <private/qt_x11_p.h>
 #endif
 
+#include <private/qstylehelper_p.h>
+
 QT_BEGIN_NAMESPACE
 
 #if defined(Q_WS_WIN)
@@ -1911,7 +1911,7 @@ void QWindowsStyle::drawControl(ControlElement ce, const QStyleOption *opt, QPai
                 p->setPen(discol);
             }
 
-            int xm = QWindowsStylePrivate::windowsItemFrame + checkcol + QWindowsStylePrivate::windowsItemHMargin;
+            int xm = int(QWindowsStylePrivate::windowsItemFrame) + checkcol + int(QWindowsStylePrivate::windowsItemHMargin);
             int xpos = menuitem->rect.x() + xm;
             QRect textRect(xpos, y + QWindowsStylePrivate::windowsItemVMargin,
                            w - xm - QWindowsStylePrivate::windowsRightBorder - tab + 1, h - 2 * QWindowsStylePrivate::windowsItemVMargin);
@@ -3223,7 +3223,7 @@ QSize QWindowsStyle::sizeFromContents(ContentsType ct, const QStyleOption *opt,
 
             int checkcol = qMax<int>(maxpmw, QWindowsStylePrivate::windowsCheckMarkWidth); // Windows always shows a check column
             w += checkcol;
-            w += QWindowsStylePrivate::windowsRightBorder + 10;
+            w += int(QWindowsStylePrivate::windowsRightBorder) + 10;
             sz.setWidth(w);
         }
         break;
diff --git a/src/gui/text/qfontdatabase_x11.cpp b/src/gui/text/qfontdatabase_x11.cpp
index 3b2e4e9..a7aa2ce 100644
--- a/src/gui/text/qfontdatabase_x11.cpp
+++ b/src/gui/text/qfontdatabase_x11.cpp
@@ -78,6 +78,9 @@ QT_BEGIN_NAMESPACE
 extern double qt_pointSize(double pixelSize, int dpi);
 extern double qt_pixelSize(double pointSize, int dpi);
 
+// from qapplication.cpp
+extern bool qt_is_gui_used;
+
 static inline void capitalize (char *s)
 {
     bool space = true;
@@ -1938,7 +1941,7 @@ void QFontDatabase::load(const QFontPrivate *d, int script)
         } else if (X11->has_fontconfig) {
             fe = loadFc(d, script, req);
 
-            if (fe != 0 && fe->fontDef.pixelSize != req.pixelSize) {
+            if (fe != 0 && fe->fontDef.pixelSize != req.pixelSize && mainThread && qt_is_gui_used) {
                 QFontEngine *xlfdFontEngine = loadXlfd(d->screen, script, req);
                 if (xlfdFontEngine->fontDef.family == fe->fontDef.family) {
                     delete fe;
@@ -1950,7 +1953,7 @@ void QFontDatabase::load(const QFontPrivate *d, int script)
 
 
 #endif
-        } else if (mainThread) {
+        } else if (mainThread && qt_is_gui_used) {
             fe = loadXlfd(d->screen, script, req);
         }
         if (!fe) {
diff --git a/src/gui/widgets/qmenu.cpp b/src/gui/widgets/qmenu.cpp
index f84059d..7941c4e 100644
--- a/src/gui/widgets/qmenu.cpp
+++ b/src/gui/widgets/qmenu.cpp
@@ -983,19 +983,9 @@ bool QMenuPrivate::mouseEventTaken(QMouseEvent *e)
     return false;
 }
 
-class ExceptionGuard
-{
-public:
-    inline ExceptionGuard(bool *w = 0) : watched(w) { Q_ASSERT(!(*watched)); *watched = true; }
-    inline ~ExceptionGuard() { *watched = false; }
-    inline operator bool() { return *watched; }
-private:
-    bool *watched;
-};
-
 void QMenuPrivate::activateCausedStack(const QList<QPointer<QWidget> > &causedStack, QAction *action, QAction::ActionEvent action_e, bool self)
 {
-    ExceptionGuard guard(&activationRecursionGuard);
+    QBoolBlocker guard(activationRecursionGuard);
 #ifdef QT3_SUPPORT
     const int actionId = q_func()->findIdForAction(action);
 #endif
diff --git a/src/imports/folderlistmodel/plugin.cpp b/src/imports/folderlistmodel/plugin.cpp
index d4569f7..555df3c 100644
--- a/src/imports/folderlistmodel/plugin.cpp
+++ b/src/imports/folderlistmodel/plugin.cpp
@@ -6,35 +6,34 @@
 **
 ** This file is part of the plugins of the Qt Toolkit.
 **
-** $QT_BEGIN_LICENSE:LGPL$
-** No Commercial Usage
-** This file contains pre-release code and may not be distributed.
-** You may use this file in accordance with the terms and conditions
-** contained in the Technology Preview License Agreement accompanying
-** this package.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL included in the
-** packaging of this file.  Please review the following information to
-** ensure the GNU Lesser General Public License version 2.1 requirements
-** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Nokia gives you certain additional
-** rights.  These rights are described in the Nokia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** If you have questions regarding the use of this file, please contact
-** Nokia at qt-info@nokia.com.
-**
-**
-**
-**
-**
-**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
 **
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
 **
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/