Merge branch '4.5' into 4.6

Conflicts:
	doc/src/frameworks-technologies/dbus-adaptors.qdoc
	doc/src/qtdbus.qdoc
	src/gui/accessible/qaccessible_mac_cocoa.mm
	src/gui/kernel/qapplication_win.cpp
	src/xmlpatterns/parser/createTokenLookup.sh
	tests/auto/linguist/lupdate/testdata/good/merge_versions/project.ui
	tests/auto/linguist/lupdate/testdata/good/mergeui/project.ui
	tests/auto/linguist/lupdate/testdata/good/parseui/project.ui
	tests/auto/runQtXmlPatternsTests.sh
	tests/auto/test.pl
	tests/auto/uic/baseline/batchtranslation.ui
	tests/auto/uic/baseline/batchtranslation.ui.h
	tests/auto/uic/baseline/config.ui
	tests/auto/uic/baseline/config.ui.h
	tests/auto/uic/baseline/finddialog.ui
	tests/auto/uic/baseline/finddialog.ui.h
	tests/auto/uic/baseline/formwindowsettings.ui
	tests/auto/uic/baseline/formwindowsettings.ui.h
	tests/auto/uic/baseline/helpdialog.ui
	tests/auto/uic/baseline/helpdialog.ui.h
	tests/auto/uic/baseline/listwidgeteditor.ui
	tests/auto/uic/baseline/listwidgeteditor.ui.h
	tests/auto/uic/baseline/mainwindowbase.ui
	tests/auto/uic/baseline/mainwindowbase.ui.h
	tests/auto/uic/baseline/newactiondialog.ui
	tests/auto/uic/baseline/newactiondialog.ui.h
	tests/auto/uic/baseline/newform.ui
	tests/auto/uic/baseline/newform.ui.h
	tests/auto/uic/baseline/orderdialog.ui
	tests/auto/uic/baseline/orderdialog.ui.h
	tests/auto/uic/baseline/paletteeditor.ui
	tests/auto/uic/baseline/paletteeditor.ui.h
	tests/auto/uic/baseline/paletteeditoradvancedbase.ui
	tests/auto/uic/baseline/paletteeditoradvancedbase.ui.h
	tests/auto/uic/baseline/phrasebookbox.ui
	tests/auto/uic/baseline/phrasebookbox.ui.h
	tests/auto/uic/baseline/plugindialog.ui
	tests/auto/uic/baseline/plugindialog.ui.h
	tests/auto/uic/baseline/previewwidget.ui
	tests/auto/uic/baseline/previewwidget.ui.h
	tests/auto/uic/baseline/previewwidgetbase.ui
	tests/auto/uic/baseline/previewwidgetbase.ui.h
	tests/auto/uic/baseline/qfiledialog.ui
	tests/auto/uic/baseline/qfiledialog.ui.h
	tests/auto/uic/baseline/qtgradientdialog.ui
	tests/auto/uic/baseline/qtgradientdialog.ui.h
	tests/auto/uic/baseline/qtgradientviewdialog.ui
	tests/auto/uic/baseline/qtgradientviewdialog.ui.h
	tests/auto/uic/baseline/saveformastemplate.ui
	tests/auto/uic/baseline/saveformastemplate.ui.h
	tests/auto/uic/baseline/statistics.ui
	tests/auto/uic/baseline/statistics.ui.h
	tests/auto/uic/baseline/stringlisteditor.ui
	tests/auto/uic/baseline/stringlisteditor.ui.h
	tests/auto/uic/baseline/tabbedbrowser.ui
	tests/auto/uic/baseline/tabbedbrowser.ui.h
	tests/auto/uic/baseline/tablewidgeteditor.ui
	tests/auto/uic/baseline/tablewidgeteditor.ui.h
	tests/auto/uic/baseline/translatedialog.ui
	tests/auto/uic/baseline/translatedialog.ui.h
	tests/auto/uic/baseline/treewidgeteditor.ui
	tests/auto/uic/baseline/treewidgeteditor.ui.h
	tests/auto/uic/baseline/trpreviewtool.ui
	tests/auto/uic/baseline/trpreviewtool.ui.h
	tests/auto/uic3/baseline/about.ui
	tests/auto/uic3/baseline/about.ui.4
	tests/auto/uic3/baseline/actioneditor.ui
	tests/auto/uic3/baseline/actioneditor.ui.4
	tests/auto/uic3/baseline/config.ui
	tests/auto/uic3/baseline/config.ui.4
	tests/auto/uic3/baseline/configtoolboxdialog.ui
	tests/auto/uic3/baseline/configtoolboxdialog.ui.4
	tests/auto/uic3/baseline/connectiondialog.ui
	tests/auto/uic3/baseline/connectiondialog.ui.4
	tests/auto/uic3/baseline/createtemplate.ui
	tests/auto/uic3/baseline/createtemplate.ui.4
	tests/auto/uic3/baseline/customwidgeteditor.ui
	tests/auto/uic3/baseline/customwidgeteditor.ui.4
	tests/auto/uic3/baseline/dbconnection.ui
	tests/auto/uic3/baseline/dbconnection.ui.4
	tests/auto/uic3/baseline/dbconnectioneditor.ui
	tests/auto/uic3/baseline/dbconnectioneditor.ui.4
	tests/auto/uic3/baseline/dbconnections.ui
	tests/auto/uic3/baseline/dbconnections.ui.4
	tests/auto/uic3/baseline/editfunctions.ui
	tests/auto/uic3/baseline/editfunctions.ui.4
	tests/auto/uic3/baseline/finddialog.ui
	tests/auto/uic3/baseline/finddialog.ui.4
	tests/auto/uic3/baseline/formsettings.ui
	tests/auto/uic3/baseline/formsettings.ui.4
	tests/auto/uic3/baseline/gotolinedialog.ui
	tests/auto/uic3/baseline/gotolinedialog.ui.4
	tests/auto/uic3/baseline/helpdialog.ui
	tests/auto/uic3/baseline/helpdialog.ui.4
	tests/auto/uic3/baseline/iconvieweditor.ui
	tests/auto/uic3/baseline/iconvieweditor.ui.4
	tests/auto/uic3/baseline/listboxeditor.ui
	tests/auto/uic3/baseline/listboxeditor.ui.4
	tests/auto/uic3/baseline/listeditor.ui
	tests/auto/uic3/baseline/listeditor.ui.4
	tests/auto/uic3/baseline/listvieweditor.ui
	tests/auto/uic3/baseline/listvieweditor.ui.4
	tests/auto/uic3/baseline/mainfilesettings.ui
	tests/auto/uic3/baseline/mainfilesettings.ui.4
	tests/auto/uic3/baseline/mainwindowbase.ui
	tests/auto/uic3/baseline/mainwindowbase.ui.4
	tests/auto/uic3/baseline/mainwindowwizard.ui
	tests/auto/uic3/baseline/mainwindowwizard.ui.4
	tests/auto/uic3/baseline/multilineeditor.ui
	tests/auto/uic3/baseline/multilineeditor.ui.4
	tests/auto/uic3/baseline/newform.ui
	tests/auto/uic3/baseline/newform.ui.4
	tests/auto/uic3/baseline/paletteeditor.ui
	tests/auto/uic3/baseline/paletteeditor.ui.4
	tests/auto/uic3/baseline/paletteeditoradvanced.ui
	tests/auto/uic3/baseline/paletteeditoradvanced.ui.4
	tests/auto/uic3/baseline/paletteeditoradvancedbase.ui
	tests/auto/uic3/baseline/paletteeditoradvancedbase.ui.4
	tests/auto/uic3/baseline/pixmapcollectioneditor.ui
	tests/auto/uic3/baseline/pixmapcollectioneditor.ui.4
	tests/auto/uic3/baseline/pixmapfunction.ui
	tests/auto/uic3/baseline/pixmapfunction.ui.4
	tests/auto/uic3/baseline/preferences.ui
	tests/auto/uic3/baseline/preferences.ui.4
	tests/auto/uic3/baseline/previewwidget.ui
	tests/auto/uic3/baseline/previewwidget.ui.4
	tests/auto/uic3/baseline/previewwidgetbase.ui
	tests/auto/uic3/baseline/previewwidgetbase.ui.4
	tests/auto/uic3/baseline/projectsettings.ui
	tests/auto/uic3/baseline/projectsettings.ui.4
	tests/auto/uic3/baseline/replacedialog.ui
	tests/auto/uic3/baseline/replacedialog.ui.4
	tests/auto/uic3/baseline/richtextfontdialog.ui
	tests/auto/uic3/baseline/richtextfontdialog.ui.4
	tests/auto/uic3/baseline/settingsdialog.ui
	tests/auto/uic3/baseline/settingsdialog.ui.4
	tests/auto/uic3/baseline/sqlformwizard.ui
	tests/auto/uic3/baseline/sqlformwizard.ui.4
	tests/auto/uic3/baseline/startdialog.ui
	tests/auto/uic3/baseline/startdialog.ui.4
	tests/auto/uic3/baseline/statistics.ui
	tests/auto/uic3/baseline/statistics.ui.4
	tests/auto/uic3/baseline/tabbedbrowser.ui
	tests/auto/uic3/baseline/tabbedbrowser.ui.4
	tests/auto/uic3/baseline/tableeditor.ui
	tests/auto/uic3/baseline/tableeditor.ui.4
	tests/auto/uic3/baseline/topicchooser.ui
	tests/auto/uic3/baseline/topicchooser.ui.4
	tests/auto/uic3/baseline/variabledialog.ui
	tests/auto/uic3/baseline/variabledialog.ui.4
	tests/auto/uic3/baseline/wizardeditor.ui.4
	tests/auto/uiloader/baseline/batchtranslation.ui
	tests/auto/uiloader/baseline/config.ui
	tests/auto/uiloader/baseline/finddialog.ui
	tests/auto/uiloader/baseline/formwindowsettings.ui
	tests/auto/uiloader/baseline/helpdialog.ui
	tests/auto/uiloader/baseline/listwidgeteditor.ui
	tests/auto/uiloader/baseline/mainwindowbase.ui
	tests/auto/uiloader/baseline/newactiondialog.ui
	tests/auto/uiloader/baseline/newform.ui
	tests/auto/uiloader/baseline/orderdialog.ui
	tests/auto/uiloader/baseline/paletteeditor.ui
	tests/auto/uiloader/baseline/paletteeditoradvancedbase.ui
	tests/auto/uiloader/baseline/phrasebookbox.ui
	tests/auto/uiloader/baseline/plugindialog.ui
	tests/auto/uiloader/baseline/previewwidget.ui
	tests/auto/uiloader/baseline/previewwidgetbase.ui
	tests/auto/uiloader/baseline/qfiledialog.ui
	tests/auto/uiloader/baseline/qtgradientdialog.ui
	tests/auto/uiloader/baseline/qtgradienteditor.ui
	tests/auto/uiloader/baseline/qtgradientviewdialog.ui
	tests/auto/uiloader/baseline/saveformastemplate.ui
	tests/auto/uiloader/baseline/statistics.ui
	tests/auto/uiloader/baseline/stringlisteditor.ui
	tests/auto/uiloader/baseline/tabbedbrowser.ui
	tests/auto/uiloader/baseline/tablewidgeteditor.ui
	tests/auto/uiloader/baseline/translatedialog.ui
	tests/auto/uiloader/baseline/treewidgeteditor.ui
	tests/auto/uiloader/baseline/trpreviewtool.ui
	tools/assistant/compat/mainwindow.cpp
	tools/assistant/tools/assistant/mainwindow.cpp
	tools/designer/src/designer/versiondialog.cpp
	tools/linguist/linguist/mainwindow.cpp
	tools/linguist/shared/make-qscript.sh
	tools/qdbus/qdbusviewer/qdbusviewer.cpp

16 files changed, 61 insertions, 48 deletions

diff --git a/src/gui/accessible/qaccessible_mac_cocoa.mm b/src/gui/accessible/qaccessible_mac_cocoa.mm
index dd02f6c..9a50036 100644
--- a/src/gui/accessible/qaccessible_mac_cocoa.mm
+++ b/src/gui/accessible/qaccessible_mac_cocoa.mm
@@ -1,4 +1,3 @@
-
 /****************************************************************************
 **
 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
@@ -40,6 +39,7 @@
 **
 ****************************************************************************/
 
+
 #include "qaccessible.h"
 #include "qaccessible_mac_p.h"
 #include "qdebug.h"
diff --git a/src/gui/dialogs/qfiledialog_embedded.ui b/src/gui/dialogs/qfiledialog_embedded.ui
index 454af4b..1bd189e 100644
--- a/src/gui/dialogs/qfiledialog_embedded.ui
+++ b/src/gui/dialogs/qfiledialog_embedded.ui
@@ -37,9 +37,6 @@
 **
 ** $QT_END_LICENSE$
 **
-** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
-** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
-**
 *********************************************************************</comment>
  <class>QFileDialog</class>
  <widget class="QDialog" name="QFileDialog" >
diff --git a/src/gui/kernel/qapplication_win.cpp b/src/gui/kernel/qapplication_win.cpp
index a3de120..d23494e 100644
--- a/src/gui/kernel/qapplication_win.cpp
+++ b/src/gui/kernel/qapplication_win.cpp
@@ -1903,11 +1903,9 @@ LRESULT CALLBACK QtWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam
                     QHideEvent e;
                     qt_sendSpontaneousEvent(widget, &e);
                     widget->hideChildren(true);
-#ifndef Q_WS_WINCE
                     const QString title = widget->windowIconText();
                     if (!title.isEmpty())
                         widget->setWindowTitle_helper(title);
-#endif
                 }
                 result = false;
                 break;
@@ -1926,11 +1924,9 @@ LRESULT CALLBACK QtWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam
                     widget->showChildren(true);
                     QShowEvent e;
                     qt_sendSpontaneousEvent(widget, &e);
-#ifndef Q_WS_WINCE
                     const QString title = widget->windowTitle();
                     if (!title.isEmpty())
                         widget->setWindowTitle_helper(title);
-#endif
                 }
                 result = false;
                 break;
@@ -1943,7 +1939,7 @@ LRESULT CALLBACK QtWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam
                 QWindowStateChangeEvent e(oldstate);
                 qt_sendSpontaneousEvent(widget, &e);
             }
-#endif
+#endif // #ifndef Q_OS_WINCE
 
             break;
         }
diff --git a/src/gui/kernel/qcocoaapplication_mac.mm b/src/gui/kernel/qcocoaapplication_mac.mm
index ed62d02..2f1d88d 100644
--- a/src/gui/kernel/qcocoaapplication_mac.mm
+++ b/src/gui/kernel/qcocoaapplication_mac.mm
@@ -37,9 +37,6 @@
 **
 ** $QT_END_LICENSE$
 **
-** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
-** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
-**
 ****************************************************************************/
 
 /****************************************************************************
diff --git a/src/gui/kernel/qcocoaapplicationdelegate_mac.mm b/src/gui/kernel/qcocoaapplicationdelegate_mac.mm
index cbf5cb6..b6aa454 100644
--- a/src/gui/kernel/qcocoaapplicationdelegate_mac.mm
+++ b/src/gui/kernel/qcocoaapplicationdelegate_mac.mm
@@ -37,9 +37,6 @@
 **
 ** $QT_END_LICENSE$
 **
-** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
-** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
-**
 ****************************************************************************/
 
 /****************************************************************************
diff --git a/src/gui/kernel/qcocoamenuloader_mac.mm b/src/gui/kernel/qcocoamenuloader_mac.mm
index 1bdb123..14e4510 100644
--- a/src/gui/kernel/qcocoamenuloader_mac.mm
+++ b/src/gui/kernel/qcocoamenuloader_mac.mm
@@ -37,9 +37,6 @@
 **
 ** $QT_END_LICENSE$
 **
-** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
-** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
-**
 ****************************************************************************/
 
 #include "qmacdefines_mac.h"
diff --git a/src/gui/kernel/qcocoawindow_mac.mm b/src/gui/kernel/qcocoawindow_mac.mm
index 59e8254..57dca6d 100644
--- a/src/gui/kernel/qcocoawindow_mac.mm
+++ b/src/gui/kernel/qcocoawindow_mac.mm
@@ -37,9 +37,6 @@
 **
 ** $QT_END_LICENSE$
 **
-** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
-** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
-**
 ****************************************************************************/
 
 #include "qmacdefines_mac.h"
diff --git a/src/gui/kernel/qcocoawindowdelegate_mac.mm b/src/gui/kernel/qcocoawindowdelegate_mac.mm
index 0a7a00f..6704fda 100644
--- a/src/gui/kernel/qcocoawindowdelegate_mac.mm
+++ b/src/gui/kernel/qcocoawindowdelegate_mac.mm
@@ -37,9 +37,6 @@
 **
 ** $QT_END_LICENSE$
 **
-** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
-** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
-**
 ****************************************************************************/
 
 #import "private/qcocoawindowdelegate_mac_p.h"
diff --git a/src/gui/painting/makepsheader.pl b/src/gui/painting/makepsheader.pl
index 30a5eea..de13209 100755
--- a/src/gui/painting/makepsheader.pl
+++ b/src/gui/painting/makepsheader.pl
@@ -1,4 +1,44 @@
 #!/usr/bin/perl
+#############################################################################
+##
+## Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+## Contact: Nokia Corporation (qt-info@nokia.com)
+##
+## This file is part of the QtGui module 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.
+##
+##
+##
+##
+##
+##
+##
+##
+## $QT_END_LICENSE$
+##
+#############################################################################
 
 open(INPUT, 'qpsprinter.ps')
   or die "Can't open qpsprinter.ps";
diff --git a/src/gui/painting/qgrayraster.c b/src/gui/painting/qgrayraster.c
index 83f1cb9..d89144e 100644
--- a/src/gui/painting/qgrayraster.c
+++ b/src/gui/painting/qgrayraster.c
@@ -1,5 +1,8 @@
 /****************************************************************************
 **
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
 ** This file is part of the QtGui module of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:LGPL$
diff --git a/src/gui/widgets/qcocoamenu_mac.mm b/src/gui/widgets/qcocoamenu_mac.mm
index bda9352..5f95b70 100644
--- a/src/gui/widgets/qcocoamenu_mac.mm
+++ b/src/gui/widgets/qcocoamenu_mac.mm
@@ -37,9 +37,6 @@
 **
 ** $QT_END_LICENSE$
 **
-** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
-** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
-**
 ****************************************************************************/
 
 #include "qmacdefines_mac.h"
diff --git a/src/gui/widgets/qmaccocoaviewcontainer_mac.mm b/src/gui/widgets/qmaccocoaviewcontainer_mac.mm
index 2ed2e5f..a45d992 100644
--- a/src/gui/widgets/qmaccocoaviewcontainer_mac.mm
+++ b/src/gui/widgets/qmaccocoaviewcontainer_mac.mm
@@ -37,9 +37,6 @@
 **
 ** $QT_END_LICENSE$
 **
-** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
-** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
-**
 ****************************************************************************/
 
 #import <Cocoa/Cocoa.h>
diff --git a/src/gui/widgets/qmacnativewidget_mac.mm b/src/gui/widgets/qmacnativewidget_mac.mm
index 28fa1ec..224a51f 100644
--- a/src/gui/widgets/qmacnativewidget_mac.mm
+++ b/src/gui/widgets/qmacnativewidget_mac.mm
@@ -37,9 +37,6 @@
 **
 ** $QT_END_LICENSE$
 **
-** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
-** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
-**
 ****************************************************************************/
 
 #import <Cocoa/Cocoa.h>
diff --git a/src/gui/widgets/qmainwindowlayout_mac.mm b/src/gui/widgets/qmainwindowlayout_mac.mm
index 2ccd3e7..797c7c5 100644
--- a/src/gui/widgets/qmainwindowlayout_mac.mm
+++ b/src/gui/widgets/qmainwindowlayout_mac.mm
@@ -37,9 +37,6 @@
 **
 ** $QT_END_LICENSE$
 **
-** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
-** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
-**
 ****************************************************************************/
 
 #include <private/qmainwindowlayout_p.h>
diff --git a/src/gui/widgets/qtabbar.cpp b/src/gui/widgets/qtabbar.cpp
index 64e383f..560b76c 100644
--- a/src/gui/widgets/qtabbar.cpp
+++ b/src/gui/widgets/qtabbar.cpp
@@ -1897,13 +1897,8 @@ void QTabBar::keyPressEvent(QKeyEvent *event)
         event->ignore();
         return;
     }
-    int dx = event->key() == (isRightToLeft() ? Qt::Key_Right : Qt::Key_Left) ? -1 : 1;
-    for (int index = d->currentIndex + dx; d->validIndex(index); index += dx) {
-        if (d->tabList.at(index).enabled) {
-            setCurrentIndex(index);
-            break;
-        }
-    }
+    int offset = event->key() == (isRightToLeft() ? Qt::Key_Right : Qt::Key_Left) ? -1 : 1;    
+    d->setCurrentNextEnabledIndex(offset);
 }
 
 /*!\reimp
@@ -1912,15 +1907,23 @@ void QTabBar::keyPressEvent(QKeyEvent *event)
 void QTabBar::wheelEvent(QWheelEvent *event)
 {
     Q_D(QTabBar);
-    int overIndex = d->indexAtPos(event->pos());
-    if (overIndex != -1) {
-        int offset = event->delta() > 0 ? -1 : 1;
-        setCurrentIndex(currentIndex() + offset);
-    }
+    int offset = event->delta() > 0 ? -1 : 1;
+    d->setCurrentNextEnabledIndex(offset);
     QWidget::wheelEvent(event);
 }
 #endif //QT_NO_WHEELEVENT
 
+void QTabBarPrivate::setCurrentNextEnabledIndex(int offset)
+{
+    Q_Q(QTabBar);
+    for (int index = currentIndex + offset; validIndex(index); index += offset) {
+        if (tabList.at(index).enabled) {
+            q->setCurrentIndex(index);
+            break;
+        }
+    }
+}
+
 /*!\reimp
  */
 void QTabBar::changeEvent(QEvent *event)
diff --git a/src/gui/widgets/qtabbar_p.h b/src/gui/widgets/qtabbar_p.h
index 150909e..2ddd8bb 100644
--- a/src/gui/widgets/qtabbar_p.h
+++ b/src/gui/widgets/qtabbar_p.h
@@ -159,6 +159,7 @@ public:
     int indexAtPos(const QPoint &p) const;
 
     inline bool validIndex(int index) const { return index >= 0 && index < tabList.count(); }
+    void setCurrentNextEnabledIndex(int offset);
 
     QSize minimumTabSizeHint(int index);