14 files changed, 165 insertions, 124 deletions
diff --git a/src/gui/text/qtextdocument.cpp b/src/gui/text/qtextdocument.cpp
index a8956b8..5398111 100644
--- a/src/gui/text/qtextdocument.cpp
+++ b/src/gui/text/qtextdocument.cpp
@@ -956,6 +956,8 @@ QString QTextDocument::defaultStyleSheet() const
 
 /*!
     Returns true if undo is available; otherwise returns false.
+
+    \sa isRedoAvailable(), availableUndoSteps()
 */
 bool QTextDocument::isUndoAvailable() const
 {
@@ -965,6 +967,8 @@ bool QTextDocument::isUndoAvailable() const
 
 /*!
     Returns true if redo is available; otherwise returns false.
+
+    \sa isUndoAvailable(), availableRedoSteps()
 */
 bool QTextDocument::isRedoAvailable() const
 {
@@ -972,6 +976,29 @@ bool QTextDocument::isRedoAvailable() const
     return d->isRedoAvailable();
 }
 
+/*! \since 4.6
+
+    Returns the number of available undo steps.
+
+    \sa isUndoAvailable()
+*/
+int QTextDocument::availableUndoSteps() const
+{
+    Q_D(const QTextDocument);
+    return d->availableUndoSteps();
+}
+
+/*! \since 4.6
+
+    Returns the number of available redo steps.
+
+    \sa isRedoAvailable()
+*/
+int QTextDocument::availableRedoSteps() const
+{
+    Q_D(const QTextDocument);
+    return d->availableRedoSteps();
+}
 
 /*! \since 4.4
 
diff --git a/src/gui/text/qtextdocument.h b/src/gui/text/qtextdocument.h
index e52716a..d217a4d 100644
--- a/src/gui/text/qtextdocument.h
+++ b/src/gui/text/qtextdocument.h
@@ -142,6 +142,9 @@ public:
     bool isUndoAvailable() const;
     bool isRedoAvailable() const;
 
+    int availableUndoSteps() const;
+    int availableRedoSteps() const;
+
     int revision() const;
 
     void setDocumentLayout(QAbstractTextDocumentLayout *layout);
diff --git a/src/gui/text/qtextdocument_p.h b/src/gui/text/qtextdocument_p.h
index ce25c57..c10855b 100644
--- a/src/gui/text/qtextdocument_p.h
+++ b/src/gui/text/qtextdocument_p.h
@@ -212,6 +212,9 @@ public:
     inline bool isUndoAvailable() const { return undoEnabled && undoState > 0; }
     inline bool isRedoAvailable() const { return undoEnabled && undoState < undoStack.size(); }
 
+    inline int availableUndoSteps() const { return undoEnabled ? undoState : 0; }
+    inline int availableRedoSteps() const { return undoEnabled ? qMax(undoStack.size() - undoState - 1, 0) : 0; }
+
     inline QString buffer() const { return text; }
     QString plainText() const;
     inline int length() const { return fragments.length(); }
diff --git a/tests/auto/qstringbuilder1/qstringbuilder1.pro b/tests/auto/qstringbuilder1/qstringbuilder1.pro
index 1ca9d45..5bb14d4 100644
--- a/tests/auto/qstringbuilder1/qstringbuilder1.pro
+++ b/tests/auto/qstringbuilder1/qstringbuilder1.pro
@@ -3,7 +3,4 @@ load(qttest_p4)
 QT = core
 
 SOURCES  += tst_qstringbuilder1.cpp
-HEADERS  += ../qstringbuilder1/stringbuilder.h
-
-DEFINES += SCENARIO=1
 
diff --git a/tests/auto/qstringbuilder1/stringbuilder.cpp b/tests/auto/qstringbuilder1/stringbuilder.cpp
index 9fea137..f35d4d2 100644
--- a/tests/auto/qstringbuilder1/stringbuilder.cpp
+++ b/tests/auto/qstringbuilder1/stringbuilder.cpp
@@ -39,61 +39,9 @@
 **
 ****************************************************************************/
 
-// This is included in various .cpp files as a compile test for various scenarios
-// depending on NO_CAST_*  and  QT_USE_FAST_OPERATOR_PLUS and QT_USE_FAST_CONCATENATION
-
-#if SCENARIO == 1
-// this is the "no harm done" version. Only operator% is active,
-// with NO_CAST * defined
-#define P %
-#undef QT_USE_FAST_OPERATOR_PLUS
-#undef QT_USE_FAST_CONCATENATION
-#define QT_NO_CAST_FROM_ASCII
-#define QT_NO_CAST_TO_ASCII
-#endif
-
-
-#if SCENARIO == 2
-// this is the "full" version. Operator+ is replaced by a QStringBuilder
-// based version
-// with NO_CAST * defined
-#define P +
-#define QT_USE_FAST_OPERATOR_PLUS
-#define QT_USE_FAST_CONCATENATION
-#define QT_NO_CAST_FROM_ASCII
-#define QT_NO_CAST_TO_ASCII
-#endif
-
-#if SCENARIO == 3
-// this is the "no harm done" version. Only operator% is active,
-// with NO_CAST * _not_ defined
-#define P %
-#undef QT_USE_FAST_OPERATOR_PLUS
-#undef QT_USE_FAST_CONCATENATION
-#undef QT_NO_CAST_FROM_ASCII
-#undef QT_NO_CAST_TO_ASCII
-#endif
-
-#if SCENARIO == 4
-// this is the "full" version. Operator+ is replaced by a QStringBuilder
-// based version
-// with NO_CAST * _not_ defined
-#define P +
-#define QT_USE_FAST_OPERATOR_PLUS
-#define QT_USE_FAST_CONCATENATION
-#undef QT_NO_CAST_FROM_ASCII
-#undef QT_NO_CAST_TO_ASCII
-#endif
-
-#include <QtTest/QtTest>
-#include "stringbuilder.h"
-
-//TESTED_CLASS=QStringBuilder
-//TESTED_FILES=qstringbuilder.cpp
-
 #define LITERAL "some literal"
 
-void tst_QStringBuilder::scenario()
+void runScenario()
 {
     QLatin1Literal l1literal(LITERAL);
     QLatin1String l1string(LITERAL);
@@ -129,5 +77,3 @@ void tst_QStringBuilder::scenario()
     QCOMPARE(r, r2);
 #endif
 }
-
-QTEST_APPLESS_MAIN(tst_QStringBuilder)
diff --git a/tests/auto/qstringbuilder1/stringbuilder.h b/tests/auto/qstringbuilder1/stringbuilder.h
deleted file mode 100644
index 5ac9dbe..0000000
--- a/tests/auto/qstringbuilder1/stringbuilder.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the test suite 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.
-**
-**
-**
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef TST_QSTRINGBUILDER_H
-#define TST_QSTRINGBUILDER_H
-
-#include <qobject.h>
-
-class tst_QStringBuilder : public QObject
-{
-    Q_OBJECT
-
-private slots:
-    void scenario();
-};
-
-#endif
diff --git a/tests/auto/qstringbuilder1/tst_qstringbuilder1.cpp b/tests/auto/qstringbuilder1/tst_qstringbuilder1.cpp
index bd2e4b0..d0a613c 100644
--- a/tests/auto/qstringbuilder1/tst_qstringbuilder1.cpp
+++ b/tests/auto/qstringbuilder1/tst_qstringbuilder1.cpp
@@ -39,4 +39,35 @@
 **
 ****************************************************************************/
 
-#include "../qstringbuilder1/stringbuilder.cpp"
+
+// SCENARIO 1
+// this is the "no harm done" version. Only operator% is active,
+// with NO_CAST * defined
+#define P %
+#undef QT_USE_FAST_OPERATOR_PLUS
+#undef QT_USE_FAST_CONCATENATION
+#define QT_NO_CAST_FROM_ASCII
+#define QT_NO_CAST_TO_ASCII
+
+
+#include <QtTest/QtTest>
+
+//TESTED_CLASS=QStringBuilder
+//TESTED_FILES=qstringbuilder.cpp
+
+#define LITERAL "some literal"
+
+void runScenario(); // Defined in stringbuilder.cpp #included below.
+
+class tst_QStringBuilder1 : public QObject
+{
+    Q_OBJECT
+
+private slots:
+    void scenario() { runScenario(); }
+};
+
+#include "stringbuilder.cpp"
+#include "tst_qstringbuilder1.moc"
+
+QTEST_APPLESS_MAIN(tst_QStringBuilder1)
diff --git a/tests/auto/qstringbuilder2/qstringbuilder2.pro b/tests/auto/qstringbuilder2/qstringbuilder2.pro
index c0b3ebc..4152dc3 100644
--- a/tests/auto/qstringbuilder2/qstringbuilder2.pro
+++ b/tests/auto/qstringbuilder2/qstringbuilder2.pro
@@ -3,6 +3,3 @@ load(qttest_p4)
 QT = core
 
 SOURCES  += tst_qstringbuilder2.cpp
-HEADERS  += ../qstringbuilder1/stringbuilder.h
-
-DEFINES += SCENARIO=2
diff --git a/tests/auto/qstringbuilder2/tst_qstringbuilder2.cpp b/tests/auto/qstringbuilder2/tst_qstringbuilder2.cpp
index bd2e4b0..4470928 100644
--- a/tests/auto/qstringbuilder2/tst_qstringbuilder2.cpp
+++ b/tests/auto/qstringbuilder2/tst_qstringbuilder2.cpp
@@ -39,4 +39,36 @@
 **
 ****************************************************************************/
 
+
+// SCENARIO 2
+// this is the "full" version. Operator+ is replaced by a QStringBuilder
+// based version
+// with NO_CAST * defined
+#define P +
+#define QT_USE_FAST_OPERATOR_PLUS
+#define QT_USE_FAST_CONCATENATION
+#define QT_NO_CAST_FROM_ASCII
+#define QT_NO_CAST_TO_ASCII
+
+
+#include <QtTest/QtTest>
+
+//TESTED_CLASS=QStringBuilder
+//TESTED_FILES=qstringbuilder.cpp
+
+#define LITERAL "some literal"
+
+void runScenario(); // Defined in stringbuilder.cpp #included below.
+
+class tst_QStringBuilder2 : public QObject
+{
+    Q_OBJECT
+
+private slots:
+    void scenario() { runScenario(); }
+};
+
 #include "../qstringbuilder1/stringbuilder.cpp"
+#include "tst_qstringbuilder2.moc"
+
+QTEST_APPLESS_MAIN(tst_QStringBuilder2)
diff --git a/tests/auto/qstringbuilder3/qstringbuilder3.pro b/tests/auto/qstringbuilder3/qstringbuilder3.pro
index 93d1a39..b4d2225 100644
--- a/tests/auto/qstringbuilder3/qstringbuilder3.pro
+++ b/tests/auto/qstringbuilder3/qstringbuilder3.pro
@@ -3,6 +3,3 @@ load(qttest_p4)
 QT = core
 
 SOURCES  += tst_qstringbuilder3.cpp
-HEADERS  += ../qstringbuilder1/stringbuilder.h
-
-DEFINES += SCENARIO=3
diff --git a/tests/auto/qstringbuilder3/tst_qstringbuilder3.cpp b/tests/auto/qstringbuilder3/tst_qstringbuilder3.cpp
index bd2e4b0..30f0181 100644
--- a/tests/auto/qstringbuilder3/tst_qstringbuilder3.cpp
+++ b/tests/auto/qstringbuilder3/tst_qstringbuilder3.cpp
@@ -39,4 +39,35 @@
 **
 ****************************************************************************/
 
+
+// SCENARIO 3
+// this is the "no harm done" version. Only operator% is active,
+// with NO_CAST * _not_ defined
+#define P %
+#undef QT_USE_FAST_OPERATOR_PLUS
+#undef QT_USE_FAST_CONCATENATION
+#undef QT_NO_CAST_FROM_ASCII
+#undef QT_NO_CAST_TO_ASCII
+
+
+#include <QtTest/QtTest>
+
+//TESTED_CLASS=QStringBuilder
+//TESTED_FILES=qstringbuilder.cpp
+
+#define LITERAL "some literal"
+
+void runScenario(); // Defined in stringbuilder.cpp #included below.
+
+class tst_QStringBuilder3 : public QObject
+{
+    Q_OBJECT
+
+private slots:
+    void scenario() { runScenario(); }
+};
+
 #include "../qstringbuilder1/stringbuilder.cpp"
+#include "tst_qstringbuilder3.moc"
+
+QTEST_APPLESS_MAIN(tst_QStringBuilder3)
diff --git a/tests/auto/qstringbuilder4/qstringbuilder4.pro b/tests/auto/qstringbuilder4/qstringbuilder4.pro
index eeec447..6ec5228 100644
--- a/tests/auto/qstringbuilder4/qstringbuilder4.pro
+++ b/tests/auto/qstringbuilder4/qstringbuilder4.pro
@@ -3,6 +3,3 @@ load(qttest_p4)
 QT = core
 
 SOURCES  += tst_qstringbuilder4.cpp
-HEADERS  += ../qstringbuilder1/stringbuilder.h
-
-DEFINES += SCENARIO=4
diff --git a/tests/auto/qstringbuilder4/tst_qstringbuilder4.cpp b/tests/auto/qstringbuilder4/tst_qstringbuilder4.cpp
index 2159283..95b4ec3 100644
--- a/tests/auto/qstringbuilder4/tst_qstringbuilder4.cpp
+++ b/tests/auto/qstringbuilder4/tst_qstringbuilder4.cpp
@@ -4,7 +4,7 @@
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
-** This file is part of the QtXmlPatterns module of the Qt Toolkit.
+** This file is part of the test suite module of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:LGPL$
 ** No Commercial Usage
@@ -39,4 +39,36 @@
 **
 ****************************************************************************/
 
+
+// SCENARIO 4
+// this is the "full" version. Operator+ is replaced by a QStringBuilder
+// based version
+// with NO_CAST * _not_ defined
+#define P +
+#define QT_USE_FAST_OPERATOR_PLUS
+#define QT_USE_FAST_CONCATENATION
+#undef QT_NO_CAST_FROM_ASCII
+#undef QT_NO_CAST_TO_ASCII
+
+
+#include <QtTest/QtTest>
+
+//TESTED_CLASS=QStringBuilder
+//TESTED_FILES=qstringbuilder.cpp
+
+#define LITERAL "some literal"
+
+void runScenario(); // Defined in stringbuilder.cpp #included below.
+
+class tst_QStringBuilder4 : public QObject
+{
+    Q_OBJECT
+
+private slots:
+    void scenario() { runScenario(); }
+};
+
 #include "../qstringbuilder1/stringbuilder.cpp"
+#include "tst_qstringbuilder4.moc"
+
+QTEST_APPLESS_MAIN(tst_QStringBuilder4)
diff --git a/tools/designer/src/lib/shared/qdesigner_tabwidget.cpp b/tools/designer/src/lib/shared/qdesigner_tabwidget.cpp
index 2789bd3..f4f3d24 100644
--- a/tools/designer/src/lib/shared/qdesigner_tabwidget.cpp
+++ b/tools/designer/src/lib/shared/qdesigner_tabwidget.cpp
@@ -399,6 +399,7 @@ static const char *currentTabNameKey = "currentTabName";
 static const char *currentTabIconKey = "currentTabIcon";
 static const char *currentTabToolTipKey = "currentTabToolTip";
 static const char *currentTabWhatsThisKey = "currentTabWhatsThis";
+static const char *tabMovableKey = "movable";
 
 QTabWidgetPropertySheet::QTabWidgetPropertySheet(QTabWidget *object, QObject *parent) :
     QDesignerPropertySheet(object, parent),
@@ -411,6 +412,8 @@ QTabWidgetPropertySheet::QTabWidgetPropertySheet(QTabWidget *object, QObject *pa
         formWindowBase()->addReloadableProperty(this, indexOf(QLatin1String(currentTabIconKey)));
     createFakeProperty(QLatin1String(currentTabToolTipKey), qVariantFromValue(qdesigner_internal::PropertySheetStringValue()));
     createFakeProperty(QLatin1String(currentTabWhatsThisKey), qVariantFromValue(qdesigner_internal::PropertySheetStringValue()));
+    // Prevent the tab widget's drag and drop handling from interfering with Designer's
+    createFakeProperty(QLatin1String(tabMovableKey), QVariant(false));
 }
 
 QTabWidgetPropertySheet::TabWidgetProperty QTabWidgetPropertySheet::tabWidgetPropertyFromName(const QString &name)