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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 1503 insertions, 0 deletions

diff --git a/src/designer/src/lib/shared/qdesigner_propertycommand.cpp b/src/designer/src/lib/shared/qdesigner_propertycommand.cpp
new file mode 100644
index 000000000..a9949d85c
--- /dev/null
+++ b/src/designer/src/lib/shared/qdesigner_propertycommand.cpp
@@ -0,0 +1,1503 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Designer 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qdesigner_propertycommand_p.h"
+#include "qdesigner_utils_p.h"
+#include "dynamicpropertysheet.h"
+#include "qdesigner_propertyeditor_p.h"
+#include "qdesigner_integration_p.h"
+#include "spacer_widget_p.h"
+#include "qdesigner_propertysheet_p.h"
+
+#include <QtDesigner/QDesignerFormEditorInterface>
+#include <QtDesigner/QDesignerFormWindowInterface>
+#include <QtDesigner/QDesignerFormWindowCursorInterface>
+#include <QtDesigner/QDesignerDynamicPropertySheetExtension>
+#include <QtDesigner/QDesignerPropertySheetExtension>
+#include <QtDesigner/QDesignerPropertyEditorInterface>
+#include <QtDesigner/QDesignerObjectInspectorInterface>
+#include <QtDesigner/QDesignerIntegrationInterface>
+#include <QtDesigner/QDesignerWidgetDataBaseInterface>
+#include <QtDesigner/QExtensionManager>
+
+#include <QtCore/QSize>
+#include <QtCore/QTextStream>
+#include <QtGui/QWidget>
+#include <QtGui/QApplication>
+#include <QtGui/QAction>
+#include <QtGui/QDialog>
+#include <QtGui/QPushButton>
+#include <QtGui/QLayout>
+#include <qdebug.h>
+
+QT_BEGIN_NAMESPACE
+
+namespace  {
+enum { debugPropertyCommands = 0 };
+
+// Debug resolve mask of font
+QString fontMask(unsigned m)
+{
+    QString rc;
+    if (m & QFont::FamilyResolved)
+        rc += QLatin1String("Family");
+    if (m & QFont::SizeResolved)
+        rc += QLatin1String("Size ");
+    if (m & QFont::WeightResolved)
+        rc += QLatin1String("Bold ");
+    if (m & QFont::StyleResolved)
+        rc += QLatin1String("Style ");
+    if (m & QFont::UnderlineResolved)
+        rc += QLatin1String("Underline ");
+    if (m & QFont::StrikeOutResolved)
+        rc += QLatin1String("StrikeOut ");
+    if (m & QFont::KerningResolved)
+        rc += QLatin1String("Kerning ");
+    if (m & QFont::StyleStrategyResolved)
+        rc += QLatin1String("StyleStrategy");
+    return rc;
+}
+
+// Debug font
+QString fontString(const QFont &f)
+{
+    QString rc; {
+        const QChar comma = QLatin1Char(',');
+        QTextStream str(&rc);
+        str << QLatin1String("QFont(\"") <<  f.family() << comma <<
+            f.pointSize();
+        if (f.bold())
+            str << comma <<  QLatin1String("bold");
+        if (f.italic())
+            str << comma <<  QLatin1String("italic");
+        if (f.underline())
+            str << comma <<  QLatin1String("underline");
+        if (f.strikeOut())
+            str << comma <<  QLatin1String("strikeOut");
+        if (f.kerning())
+            str << comma << QLatin1String("kerning");
+        str <<  comma << f.styleStrategy() << QLatin1String(" resolve: ")
+            << fontMask(f.resolve()) << QLatin1Char(')');
+    }
+    return rc;
+}
+QSize checkSize(const QSize &size)
+{
+    return size.boundedTo(QSize(0xFFFFFF, 0xFFFFFF));
+}
+
+QSize diffSize(QDesignerFormWindowInterface *fw)
+{
+    const QWidget *container = fw->core()->integration()->containerWindow(fw);
+    if (!container)
+        return QSize();
+
+    const QSize diff = container->size() - fw->size(); // decoration offset of container window
+    return diff;
+}
+
+void checkSizes(QDesignerFormWindowInterface *fw, const QSize &size, QSize *formSize, QSize *containerSize)
+{
+    const QWidget *container = fw->core()->integration()->containerWindow(fw);
+    if (!container)
+        return;
+
+    const  QSize diff = diffSize(fw); // decoration offset of container window
+
+    QSize newFormSize = checkSize(size).expandedTo(fw->mainContainer()->minimumSizeHint()); // don't try to resize to smaller size than minimumSizeHint
+    QSize newContainerSize = newFormSize + diff;
+
+    newContainerSize = newContainerSize.expandedTo(container->minimumSizeHint());
+    newContainerSize = newContainerSize.expandedTo(container->minimumSize());
+
+    newFormSize = newContainerSize - diff;
+
+    newContainerSize = checkSize(newContainerSize);
+
+    if (formSize)
+        *formSize = newFormSize;
+    if (containerSize)
+        *containerSize = newContainerSize;
+}
+
+/* SubProperties: When applying a changed property to a multiselection, it sometimes makes
+ * sense to apply only parts (subproperties) of the property.
+ * For example, if someone changes the x-value of a geometry in the property editor
+ * and applies it to a multi-selection, y should not be applied as this would cause all
+ * the widgets to overlap.
+ * The following routines can be used to find out the changed subproperties of a property,
+ * which are represented as a mask, and to apply them while leaving the others intact. */
+
+enum RectSubPropertyMask {  SubPropertyX=1, SubPropertyY = 2, SubPropertyWidth = 4, SubPropertyHeight = 8 };
+enum SizePolicySubPropertyMask { SubPropertyHSizePolicy = 1, SubPropertyHStretch = 2, SubPropertyVSizePolicy = 4, SubPropertyVStretch = 8 };
+enum AlignmentSubPropertyMask { SubPropertyHorizontalAlignment = 1, SubPropertyVerticalAlignment = 2 };
+enum StringSubPropertyMask { SubPropertyStringValue = 1, SubPropertyStringComment = 2, SubPropertyStringTranslatable = 4, SubPropertyStringDisambiguation = 8 };
+enum KeySequenceSubPropertyMask { SubPropertyKeySequenceValue = 1, SubPropertyKeySequenceComment = 2, SubPropertyKeySequenceTranslatable = 4, SubPropertyKeySequenceDisambiguation = 8 };
+
+enum CommonSubPropertyMask { SubPropertyAll = 0xFFFFFFFF };
+
+// Set the mask flag in mask if the properties do not match.
+#define COMPARE_SUBPROPERTY(object1, object2, getter, mask, maskFlag) if (object1.getter() != object2.getter()) mask |= maskFlag;
+
+// find changed subproperties of a rectangle
+unsigned compareSubProperties(const QRect & r1, const QRect & r2)
+{
+    unsigned rc = 0;
+    COMPARE_SUBPROPERTY(r1, r2, x, rc, SubPropertyX)
+    COMPARE_SUBPROPERTY(r1, r2, y, rc, SubPropertyY)
+    COMPARE_SUBPROPERTY(r1, r2, width, rc, SubPropertyWidth)
+    COMPARE_SUBPROPERTY(r1, r2, height, rc, SubPropertyHeight)
+    return rc;
+}
+
+// find changed subproperties of a QSize
+unsigned compareSubProperties(const QSize & r1, const QSize & r2)
+{
+    unsigned rc = 0;
+    COMPARE_SUBPROPERTY(r1, r2, width,  rc, SubPropertyWidth)
+    COMPARE_SUBPROPERTY(r1, r2, height, rc, SubPropertyHeight)
+    return rc;
+}
+// find changed subproperties of a QSizePolicy
+unsigned compareSubProperties(const QSizePolicy & sp1, const QSizePolicy & sp2)
+{
+    unsigned rc = 0;
+    COMPARE_SUBPROPERTY(sp1, sp2, horizontalPolicy,  rc, SubPropertyHSizePolicy)
+    COMPARE_SUBPROPERTY(sp1, sp2, horizontalStretch, rc, SubPropertyHStretch)
+    COMPARE_SUBPROPERTY(sp1, sp2, verticalPolicy,    rc, SubPropertyVSizePolicy)
+    COMPARE_SUBPROPERTY(sp1, sp2, verticalStretch,   rc, SubPropertyVStretch)
+    return rc;
+}
+// find changed subproperties of qdesigner_internal::PropertySheetStringValue
+unsigned compareSubProperties(const qdesigner_internal::PropertySheetStringValue & str1, const qdesigner_internal::PropertySheetStringValue & str2)
+{
+    unsigned rc = 0;
+    COMPARE_SUBPROPERTY(str1, str2, value,          rc, SubPropertyStringValue)
+    COMPARE_SUBPROPERTY(str1, str2, comment,        rc, SubPropertyStringComment)
+    COMPARE_SUBPROPERTY(str1, str2, translatable,   rc, SubPropertyStringTranslatable)
+    COMPARE_SUBPROPERTY(str1, str2, disambiguation, rc, SubPropertyStringDisambiguation)
+    return rc;
+}
+// find changed subproperties of qdesigner_internal::PropertySheetKeySequenceValue
+unsigned compareSubProperties(const qdesigner_internal::PropertySheetKeySequenceValue & str1, const qdesigner_internal::PropertySheetKeySequenceValue & str2)
+{
+    unsigned rc = 0;
+    COMPARE_SUBPROPERTY(str1, str2, value,          rc, SubPropertyKeySequenceValue)
+    COMPARE_SUBPROPERTY(str1, str2, comment,        rc, SubPropertyKeySequenceComment)
+    COMPARE_SUBPROPERTY(str1, str2, translatable,   rc, SubPropertyKeySequenceTranslatable)
+    COMPARE_SUBPROPERTY(str1, str2, disambiguation, rc, SubPropertyKeySequenceDisambiguation)
+    return rc;
+}
+
+// Compare font-subproperties taking the [undocumented]
+// resolve flag into account
+template <class Property>
+void compareFontSubProperty(const QFont & f1,
+                            const QFont & f2,
+                            Property (QFont::*getter) () const,
+                            unsigned maskBit,
+                            unsigned &mask)
+{
+    const bool f1Changed = f1.resolve() & maskBit;
+    const bool f2Changed = f2.resolve() & maskBit;
+    // Role has been set/reset in editor
+    if (f1Changed != f2Changed) {
+        mask |= maskBit;
+    } else {
+        // Was modified in both palettes: Compare values.
+        if (f1Changed && f2Changed && (f1.*getter)() != (f2.*getter)())
+            mask |= maskBit;
+    }
+}
+// find changed subproperties of a QFont
+unsigned compareSubProperties(const QFont & f1, const QFont & f2)
+{
+    unsigned rc = 0;
+    compareFontSubProperty(f1, f2, &QFont::family,        QFont::FamilyResolved, rc);
+    compareFontSubProperty(f1, f2, &QFont::pointSize,     QFont::SizeResolved, rc);
+    compareFontSubProperty(f1, f2, &QFont::bold,          QFont::WeightResolved, rc);
+    compareFontSubProperty(f1, f2, &QFont::italic,        QFont::StyleResolved, rc);
+    compareFontSubProperty(f1, f2, &QFont::underline,     QFont::UnderlineResolved, rc);
+    compareFontSubProperty(f1, f2, &QFont::strikeOut,     QFont::StrikeOutResolved, rc);
+    compareFontSubProperty(f1, f2, &QFont::kerning,       QFont::KerningResolved, rc);
+    compareFontSubProperty(f1, f2, &QFont::styleStrategy, QFont::StyleStrategyResolved, rc);
+    if (debugPropertyCommands)
+        qDebug() << "compareSubProperties " <<  fontString(f1) << fontString(f2) << "\n\treturns " << fontMask(rc);
+    return rc;
+}
+
+// Compare colors of a role
+bool roleColorChanged(const QPalette & p1, const QPalette & p2, QPalette::ColorRole role)
+{
+    for (int group = QPalette::Active; group < QPalette::NColorGroups;  group++) {
+        const QPalette::ColorGroup pgroup = static_cast<QPalette::ColorGroup>(group);
+        if (p1.color(pgroup, role) != p2.color(pgroup, role))
+            return true;
+    }
+    return false;
+}
+// find changed subproperties of a QPalette taking the [undocumented] resolve flags into account
+unsigned compareSubProperties(const QPalette & p1, const QPalette & p2)
+{
+    unsigned rc = 0;
+    unsigned maskBit = 1u;
+    // generate a mask for each role
+    const unsigned p1Changed = p1.resolve();
+    const unsigned p2Changed = p2.resolve();
+    for (int role = QPalette::WindowText;  role < QPalette::NColorRoles; role++, maskBit <<= 1u) {
+        const bool p1RoleChanged = p1Changed & maskBit;
+        const bool p2RoleChanged = p2Changed & maskBit;
+        // Role has been set/reset in editor
+        if (p1RoleChanged != p2RoleChanged) {
+            rc |= maskBit;
+        } else {
+            // Was modified in both palettes: Compare values.
+            if (p1RoleChanged && p2RoleChanged && roleColorChanged(p1, p2, static_cast<QPalette::ColorRole>(role)))
+                rc |= maskBit;
+        }
+    }
+    return rc;
+}
+
+// find changed subproperties of a QAlignment which is a flag combination of vertical and horizontal
+
+unsigned compareSubProperties(Qt::Alignment a1, Qt::Alignment a2)
+{
+    unsigned rc = 0;
+    if ((a1 & Qt::AlignHorizontal_Mask) != (a2 & Qt::AlignHorizontal_Mask))
+        rc |= SubPropertyHorizontalAlignment;
+    if ((a1 & Qt::AlignVertical_Mask) != (a2 & Qt::AlignVertical_Mask))
+        rc |= SubPropertyVerticalAlignment;
+    return rc;
+}
+
+Qt::Alignment variantToAlignment(const QVariant & q)
+{
+    return Qt::Alignment(qdesigner_internal::Utils::valueOf(q));
+}
+// find changed subproperties of a variant
+unsigned compareSubProperties(const QVariant & q1, const QVariant & q2, qdesigner_internal::SpecialProperty specialProperty)
+{
+    // Do not clobber new value in the comparison function in
+    // case someone sets a QString on a PropertySheetStringValue.
+    if (q1.type() != q2.type())
+        return SubPropertyAll;
+    switch (q1.type()) {
+    case QVariant::Rect:
+        return compareSubProperties(q1.toRect(), q2.toRect());
+    case QVariant::Size:
+        return compareSubProperties(q1.toSize(), q2.toSize());
+    case QVariant::SizePolicy:
+        return compareSubProperties(qvariant_cast<QSizePolicy>(q1), qvariant_cast<QSizePolicy>(q2));
+    case QVariant::Font:
+        return compareSubProperties(qvariant_cast<QFont>(q1), qvariant_cast<QFont>(q2));
+    case QVariant::Palette:
+        return compareSubProperties(qvariant_cast<QPalette>(q1), qvariant_cast<QPalette>(q2));
+    default:
+        if (q1.userType() == qMetaTypeId<qdesigner_internal::PropertySheetIconValue>())
+            return qvariant_cast<qdesigner_internal::PropertySheetIconValue>(q1).compare(qvariant_cast<qdesigner_internal::PropertySheetIconValue>(q2));
+        else if (q1.userType() == qMetaTypeId<qdesigner_internal::PropertySheetStringValue>())
+            return compareSubProperties(qvariant_cast<qdesigner_internal::PropertySheetStringValue>(q1), qvariant_cast<qdesigner_internal::PropertySheetStringValue>(q2));
+        else if (q1.userType() == qMetaTypeId<qdesigner_internal::PropertySheetKeySequenceValue>())
+            return compareSubProperties(qvariant_cast<qdesigner_internal::PropertySheetKeySequenceValue>(q1), qvariant_cast<qdesigner_internal::PropertySheetKeySequenceValue>(q2));
+        // Enumerations, flags
+        switch (specialProperty) {
+        case qdesigner_internal::SP_Alignment:
+            return compareSubProperties(variantToAlignment(q1), variantToAlignment(q2));
+        default:
+        break;
+        }
+        break;
+    }
+    return SubPropertyAll;
+}
+
+// Apply  the sub property if mask flag is set in mask
+#define SET_SUBPROPERTY(rc, newValue, getter, setter, mask, maskFlag) if (mask & maskFlag) rc.setter(newValue.getter());
+
+// apply changed subproperties to a rectangle
+QRect applyRectSubProperty(const QRect &oldValue, const QRect &newValue, unsigned mask)
+{
+    QRect rc = oldValue;
+    SET_SUBPROPERTY(rc, newValue, x,      moveLeft,  mask, SubPropertyX)
+    SET_SUBPROPERTY(rc, newValue, y,      moveTop,   mask, SubPropertyY)
+    SET_SUBPROPERTY(rc, newValue, width,  setWidth,  mask, SubPropertyWidth)
+    SET_SUBPROPERTY(rc, newValue, height, setHeight, mask, SubPropertyHeight)
+    return rc;
+}
+
+
+// apply changed subproperties to a rectangle QSize
+QSize applySizeSubProperty(const QSize &oldValue, const QSize &newValue, unsigned mask)
+{
+    QSize rc = oldValue;
+    SET_SUBPROPERTY(rc, newValue, width,  setWidth,  mask, SubPropertyWidth)
+    SET_SUBPROPERTY(rc, newValue, height, setHeight, mask, SubPropertyHeight)
+    return rc;
+}
+
+
+// apply changed subproperties to a SizePolicy
+QSizePolicy applySizePolicySubProperty(const QSizePolicy &oldValue, const QSizePolicy &newValue, unsigned mask)
+{
+    QSizePolicy rc = oldValue;
+    SET_SUBPROPERTY(rc, newValue, horizontalPolicy,  setHorizontalPolicy,  mask, SubPropertyHSizePolicy)
+    SET_SUBPROPERTY(rc, newValue, horizontalStretch, setHorizontalStretch, mask, SubPropertyHStretch)
+    SET_SUBPROPERTY(rc, newValue, verticalPolicy,    setVerticalPolicy,    mask, SubPropertyVSizePolicy)
+    SET_SUBPROPERTY(rc, newValue, verticalStretch,   setVerticalStretch,   mask, SubPropertyVStretch)
+    return rc;
+}
+
+// apply changed subproperties to a qdesigner_internal::PropertySheetStringValue
+qdesigner_internal::PropertySheetStringValue applyStringSubProperty(const qdesigner_internal::PropertySheetStringValue &oldValue,
+            const qdesigner_internal::PropertySheetStringValue &newValue, unsigned mask)
+{
+    qdesigner_internal::PropertySheetStringValue rc = oldValue;
+    SET_SUBPROPERTY(rc, newValue, value, setValue, mask, SubPropertyStringValue)
+    SET_SUBPROPERTY(rc, newValue, comment, setComment, mask, SubPropertyStringComment)
+    SET_SUBPROPERTY(rc, newValue, translatable, setTranslatable, mask, SubPropertyStringTranslatable)
+    SET_SUBPROPERTY(rc, newValue, disambiguation, setDisambiguation, mask, SubPropertyStringDisambiguation)
+    return rc;
+}
+
+// apply changed subproperties to a qdesigner_internal::PropertySheetKeySequenceValue
+qdesigner_internal::PropertySheetKeySequenceValue applyKeySequenceSubProperty(const qdesigner_internal::PropertySheetKeySequenceValue &oldValue,
+            const qdesigner_internal::PropertySheetKeySequenceValue &newValue, unsigned mask)
+{
+    qdesigner_internal::PropertySheetKeySequenceValue rc = oldValue;
+    SET_SUBPROPERTY(rc, newValue, value, setValue, mask, SubPropertyKeySequenceValue)
+    SET_SUBPROPERTY(rc, newValue, comment, setComment, mask, SubPropertyKeySequenceComment)
+    SET_SUBPROPERTY(rc, newValue, translatable, setTranslatable, mask, SubPropertyKeySequenceTranslatable)
+    SET_SUBPROPERTY(rc, newValue, disambiguation, setDisambiguation, mask, SubPropertyKeySequenceDisambiguation)
+    return rc;
+}
+
+// Apply the font-subproperties keeping the [undocumented]
+// resolve flag in sync (note that PropertySetterType might be something like const T&).
+template <class PropertyReturnType, class PropertySetterType>
+inline void setFontSubProperty(unsigned mask,
+                               const QFont &newValue,
+                               unsigned maskBit,
+                               PropertyReturnType (QFont::*getter) () const,
+                               void (QFont::*setter) (PropertySetterType),
+                               QFont &value)
+{
+    if (mask & maskBit) {
+        (value.*setter)((newValue.*getter)());
+        // Set the resolve bit from NewValue in return value
+        uint r = value.resolve();
+        const bool origFlag = newValue.resolve() & maskBit;
+        if (origFlag)
+            r |= maskBit;
+        else
+            r &= ~maskBit;
+        value.resolve(r);
+        if (debugPropertyCommands)
+            qDebug() << "setFontSubProperty " <<  fontMask(maskBit) << " resolve=" << origFlag;
+    }
+}
+// apply changed subproperties to a QFont
+QFont applyFontSubProperty(const QFont &oldValue, const QFont &newValue, unsigned mask)
+{
+    QFont  rc = oldValue;
+    setFontSubProperty(mask, newValue, QFont::FamilyResolved,        &QFont::family,        &QFont::setFamily, rc);
+    setFontSubProperty(mask, newValue, QFont::SizeResolved,          &QFont::pointSize,     &QFont::setPointSize, rc);
+    setFontSubProperty(mask, newValue, QFont::WeightResolved,        &QFont::bold,          &QFont::setBold, rc);
+    setFontSubProperty(mask, newValue, QFont::StyleResolved,         &QFont::italic,        &QFont::setItalic, rc);
+    setFontSubProperty(mask, newValue, QFont::UnderlineResolved,     &QFont::underline,     &QFont::setUnderline, rc);
+    setFontSubProperty(mask, newValue, QFont::StrikeOutResolved,     &QFont::strikeOut,     &QFont::setStrikeOut, rc);
+    setFontSubProperty(mask, newValue, QFont::KerningResolved,       &QFont::kerning,       &QFont::setKerning, rc);
+    setFontSubProperty(mask, newValue, QFont::StyleStrategyResolved, &QFont::styleStrategy, &QFont::setStyleStrategy, rc);
+    if (debugPropertyCommands)
+        qDebug() << "applyFontSubProperty old " <<  fontMask(oldValue.resolve()) << " new " << fontMask(newValue.resolve()) << " return: " << fontMask(rc.resolve());
+    return rc;
+}
+
+// apply changed subproperties to a QPalette
+QPalette applyPaletteSubProperty(const QPalette &oldValue, const QPalette &newValue, unsigned mask)
+{
+    QPalette rc = oldValue;
+    // apply a mask for each role
+    unsigned maskBit = 1u;
+    for (int role = QPalette::WindowText;  role < QPalette::NColorRoles; role++, maskBit <<= 1u) {
+        if (mask & maskBit) {
+            for (int group = QPalette::Active; group < QPalette::NColorGroups;  group++) {
+                const QPalette::ColorGroup pgroup = static_cast<QPalette::ColorGroup>(group);
+                const QPalette::ColorRole prole =  static_cast<QPalette::ColorRole>(role);
+                rc.setColor(pgroup, prole, newValue.color(pgroup, prole));
+            }
+            // Set the resolve bit from NewValue in return value
+            uint r = rc.resolve();
+            const bool origFlag = newValue.resolve() & maskBit;
+            if (origFlag)
+                r |= maskBit;
+            else
+                r &= ~maskBit;
+            rc.resolve(r);
+        }
+    }
+    return rc;
+}
+
+// apply changed subproperties to  a QAlignment which is a flag combination of vertical and horizontal
+Qt::Alignment applyAlignmentSubProperty(Qt::Alignment oldValue, Qt::Alignment newValue, unsigned mask)
+{
+    // easy: both changed.
+    if (mask == (SubPropertyHorizontalAlignment|SubPropertyVerticalAlignment))
+        return newValue;
+    // Change subprop
+    const Qt::Alignment changeMask   = (mask & SubPropertyHorizontalAlignment) ? Qt::AlignHorizontal_Mask : Qt::AlignVertical_Mask;
+    const Qt::Alignment takeOverMask = (mask & SubPropertyHorizontalAlignment) ? Qt::AlignVertical_Mask   : Qt::AlignHorizontal_Mask;
+    return (oldValue & takeOverMask) | (newValue & changeMask);
+}
+
+}
+
+namespace qdesigner_internal {
+
+// apply changed subproperties to a variant
+PropertyHelper::Value applySubProperty(const QVariant &oldValue, const QVariant &newValue, qdesigner_internal::SpecialProperty specialProperty, unsigned mask, bool changed)
+{
+    if (mask == SubPropertyAll)
+        return PropertyHelper::Value(newValue, changed);
+
+    switch (oldValue.type()) {
+    case QVariant::Rect:
+        return PropertyHelper::Value(applyRectSubProperty(oldValue.toRect(), newValue.toRect(), mask), changed);
+    case QVariant::Size:
+        return PropertyHelper::Value(applySizeSubProperty(oldValue.toSize(), newValue.toSize(), mask), changed);
+    case QVariant::SizePolicy:
+        return PropertyHelper::Value(QVariant::fromValue(applySizePolicySubProperty(qvariant_cast<QSizePolicy>(oldValue), qvariant_cast<QSizePolicy>(newValue), mask)), changed);
+    case QVariant::Font: {
+        // Changed flag in case of font and palette depends on resolve mask only, not on the passed "changed" value.
+
+        // The first case: the user changed bold subproperty and then pressed reset button for this subproperty (not for
+        // the whole font property). We instantiate SetPropertyCommand passing changed=true. But in this case no
+        // subproperty is changed and the whole property should be marked an unchanged.
+
+        // The second case: there are 2 pushbuttons, for 1st the user set bold and italic subproperties,
+        // for the 2nd he set bold only. He does multiselection so that the current widget is the 2nd one.
+        // He press reset next to bold subproperty. In result the 2nd widget should have the whole
+        // font property marked as unchanged and the 1st widget should have the font property
+        // marked as changed and only italic subproperty should be marked as changed (the bold should be reset).
+
+        // The third case: there are 2 pushbuttons, for 1st the user set bold and italic subproperties,
+        // for the 2nd he set bold only. He does multiselection so that the current widget is the 2nd one.
+        // He press reset button for the whole font property. In result whole font properties for both
+        // widgets should be marked as unchanged.
+        QFont font = applyFontSubProperty(qvariant_cast<QFont>(oldValue), qvariant_cast<QFont>(newValue), mask);
+        return PropertyHelper::Value(QVariant::fromValue(font), font.resolve());
+        }
+    case QVariant::Palette: {
+        QPalette palette = applyPaletteSubProperty(qvariant_cast<QPalette>(oldValue), qvariant_cast<QPalette>(newValue), mask);
+        return PropertyHelper::Value(QVariant::fromValue(palette), palette.resolve());
+        }
+    default:
+        if (oldValue.userType() == qMetaTypeId<qdesigner_internal::PropertySheetIconValue>()) {
+            PropertySheetIconValue icon = qvariant_cast<qdesigner_internal::PropertySheetIconValue>(oldValue);
+            icon.assign(qvariant_cast<qdesigner_internal::PropertySheetIconValue>(newValue), mask);
+            return PropertyHelper::Value(QVariant::fromValue(icon), icon.mask());
+        } else if (oldValue.userType() == qMetaTypeId<qdesigner_internal::PropertySheetStringValue>()) {
+            qdesigner_internal::PropertySheetStringValue str = applyStringSubProperty(
+                        qvariant_cast<qdesigner_internal::PropertySheetStringValue>(oldValue),
+                        qvariant_cast<qdesigner_internal::PropertySheetStringValue>(newValue), mask);
+            return PropertyHelper::Value(QVariant::fromValue(str), changed);
+        } else if (oldValue.userType() == qMetaTypeId<qdesigner_internal::PropertySheetKeySequenceValue>()) {
+            qdesigner_internal::PropertySheetKeySequenceValue key = applyKeySequenceSubProperty(
+                        qvariant_cast<qdesigner_internal::PropertySheetKeySequenceValue>(oldValue),
+                        qvariant_cast<qdesigner_internal::PropertySheetKeySequenceValue>(newValue), mask);
+            return PropertyHelper::Value(QVariant::fromValue(key), changed);
+        }
+        // Enumerations, flags
+        switch (specialProperty) {
+        case qdesigner_internal::SP_Alignment: {
+            qdesigner_internal::PropertySheetFlagValue f = qvariant_cast<qdesigner_internal::PropertySheetFlagValue>(oldValue);
+            f.value = applyAlignmentSubProperty(variantToAlignment(oldValue), variantToAlignment(newValue), mask);
+            QVariant v;
+            v.setValue(f);
+            return PropertyHelper::Value(v, changed);
+                                               }
+        default:
+        break;
+        }
+        break;
+    }
+    return PropertyHelper::Value(newValue, changed);
+
+}
+// figure out special property
+enum SpecialProperty getSpecialProperty(const QString& propertyName)
+{
+    if (propertyName == QLatin1String("objectName"))
+        return SP_ObjectName;
+    if (propertyName == QLatin1String("layoutName"))
+        return SP_LayoutName;
+    if (propertyName == QLatin1String("spacerName"))
+        return SP_SpacerName;
+    if (propertyName == QLatin1String("icon"))
+        return SP_Icon;
+    if (propertyName == QLatin1String("currentTabName"))
+        return SP_CurrentTabName;
+    if (propertyName == QLatin1String("currentItemName"))
+        return SP_CurrentItemName;
+    if (propertyName == QLatin1String("currentPageName"))
+        return SP_CurrentPageName;
+    if (propertyName == QLatin1String("geometry"))
+        return SP_Geometry;
+    if (propertyName == QLatin1String("windowTitle"))
+        return SP_WindowTitle;
+    if (propertyName == QLatin1String("minimumSize"))
+        return SP_MinimumSize;
+    if (propertyName == QLatin1String("maximumSize"))
+        return SP_MaximumSize;
+    if (propertyName == QLatin1String("alignment"))
+        return SP_Alignment;
+    if (propertyName == QLatin1String("autoDefault"))
+        return SP_AutoDefault;
+    if (propertyName == QLatin1String("shortcut"))
+        return SP_Shortcut;
+    if (propertyName == QLatin1String("orientation"))
+        return SP_Orientation;
+    return SP_None;
+}
+
+
+PropertyHelper::PropertyHelper(QObject* object,
+                               SpecialProperty specialProperty,
+                               QDesignerPropertySheetExtension *sheet,
+                               int index) :
+    m_specialProperty(specialProperty),
+    m_object(object),
+    m_objectType(OT_Object),
+    m_propertySheet(sheet),  m_index(index),
+    m_oldValue(m_propertySheet->property(m_index), m_propertySheet->isChanged(m_index))
+{
+    if (object->isWidgetType()) {
+        m_parentWidget = (qobject_cast<QWidget*>(object))->parentWidget();
+        m_objectType = OT_Widget;
+    } else {
+        if (const QAction *action = qobject_cast<const QAction *>(m_object))
+            m_objectType = action->associatedWidgets().empty() ? OT_FreeAction : OT_AssociatedAction;
+    }
+
+    if(debugPropertyCommands)
+        qDebug() << "PropertyHelper on " << m_object->objectName() << " index= " << m_index << " type = " << m_objectType;
+}
+
+QDesignerIntegration *PropertyHelper::integration(QDesignerFormWindowInterface *fw) const
+{
+    return qobject_cast<QDesignerIntegration *>(fw->core()->integration());
+}
+
+// Set widget value, apply corrections and checks in case of main window.
+void PropertyHelper::checkApplyWidgetValue(QDesignerFormWindowInterface *fw, QWidget* w,
+                                      SpecialProperty specialProperty, QVariant &value)
+{
+
+    bool isMainContainer = false;
+    if (QDesignerFormWindowCursorInterface *cursor = fw->cursor()) {
+        if (cursor->isWidgetSelected(w)) {
+            if (cursor->isWidgetSelected(fw->mainContainer())) {
+                isMainContainer = true;
+            }
+        }
+    }
+    if (!isMainContainer)
+        return;
+
+    QWidget *container = fw->core()->integration()->containerWindow(fw);
+    if (!container)
+        return;
+
+
+    switch (specialProperty) {
+    case SP_MinimumSize: {
+        const QSize size = checkSize(value.toSize());
+        value.setValue(size);
+    }
+
+        break;
+    case SP_MaximumSize: {
+        QSize fs, cs;
+        checkSizes(fw, value.toSize(), &fs, &cs);
+        container->setMaximumSize(cs);
+        fw->mainContainer()->setMaximumSize(fs);
+        value.setValue(fs);
+
+    }
+        break;
+    case SP_Geometry: {
+        QRect r = value.toRect();
+        QSize fs, cs;
+        checkSizes(fw, r.size(), &fs, &cs);
+        container->resize(cs);
+        r.setSize(fs);
+        value.setValue(r);
+    }
+        break;
+    default:
+        break;
+    }
+}
+
+unsigned PropertyHelper::updateMask() const
+{
+    unsigned rc = 0;
+    switch (m_specialProperty) {
+    case SP_ObjectName:
+    case SP_LayoutName:
+    case SP_SpacerName:
+    case SP_CurrentTabName:
+    case SP_CurrentItemName:
+    case SP_CurrentPageName:
+        if (m_objectType != OT_FreeAction)
+            rc |= UpdateObjectInspector;
+        break;
+    case SP_Icon:
+        if (m_objectType == OT_AssociatedAction)
+            rc |= UpdateObjectInspector;
+        break;
+    case SP_Orientation: // for updating splitter icon
+        rc |= UpdateObjectInspector;
+        break;
+    default:
+        break;
+
+    }
+    return rc;
+}
+
+
+bool PropertyHelper::canMerge(const PropertyHelper &other) const
+{
+    return m_object == other.m_object &&  m_index == other.m_index;
+}
+
+void PropertyHelper::triggerActionChanged(QAction *a)
+{
+    a->setData(QVariant(true)); // this triggers signal "changed" in QAction
+    a->setData(QVariant(false));
+}
+
+// Update the object to reflect the changes
+void PropertyHelper::updateObject(QDesignerFormWindowInterface *fw, const QVariant &oldValue, const QVariant &newValue)
+{
+    if(debugPropertyCommands){
+         qDebug() << "PropertyHelper::updateObject(" << m_object->objectName() << ") " << oldValue << " -> " << newValue;
+    }
+    switch (m_objectType) {
+    case OT_Widget: {
+        switch (m_specialProperty) {
+        case SP_ObjectName: {
+            const QString oldName = qvariant_cast<PropertySheetStringValue>(oldValue).value();
+            const QString newName = qvariant_cast<PropertySheetStringValue>(newValue).value();
+            QDesignerFormWindowCommand::updateBuddies(fw, oldName, newName);
+        }
+            break;
+        default:
+            break;
+        }
+    } break;
+    case OT_AssociatedAction:
+    case OT_FreeAction:
+        // SP_Shortcut is a fake property, so, QAction::changed does not trigger.
+        if (m_specialProperty == SP_ObjectName || m_specialProperty == SP_Shortcut)
+            triggerActionChanged(qobject_cast<QAction *>(m_object));
+        break;
+    default:
+        break;
+    }
+
+    switch (m_specialProperty) {
+    case SP_ObjectName:
+    case SP_LayoutName:
+    case SP_SpacerName:
+        if (QDesignerIntegration *integr = integration(fw)) {
+            const QString oldName = qvariant_cast<PropertySheetStringValue>(oldValue).value();
+            const QString newName = qvariant_cast<PropertySheetStringValue>(newValue).value();
+            integr->emitObjectNameChanged(fw, m_object, newName, oldName);
+        }
+        break;
+    default:
+        break;
+    }
+}
+
+void PropertyHelper::ensureUniqueObjectName(QDesignerFormWindowInterface *fw, QObject *object) const
+{
+    switch (m_specialProperty) {
+    case SP_SpacerName:
+        if (object->isWidgetType()) {
+            if (Spacer *sp = qobject_cast<Spacer *>(object)) {
+                fw->ensureUniqueObjectName(sp);
+                return;
+            }
+        }
+        fw->ensureUniqueObjectName(object);
+        break;
+    case SP_LayoutName: // Layout name is invoked on the parent widget.
+        if (object->isWidgetType()) {
+            const QWidget * w = qobject_cast<const QWidget *>(object);
+            if (QLayout *wlayout = w->layout()) {
+                fw->ensureUniqueObjectName(wlayout);
+                return;
+            }
+        }
+        fw->ensureUniqueObjectName(object);
+        break;
+    case SP_ObjectName:
+        fw->ensureUniqueObjectName(object);
+        break;
+    default:
+        break;
+    }
+}
+
+PropertyHelper::Value PropertyHelper::setValue(QDesignerFormWindowInterface *fw, const QVariant &value, bool changed, unsigned subPropertyMask)
+{
+    // Set new whole value
+    if (subPropertyMask == SubPropertyAll)
+        return  applyValue(fw, m_oldValue.first, Value(value, changed));
+
+    // apply subproperties
+    const PropertyHelper::Value maskedNewValue = applySubProperty(m_oldValue.first, value, m_specialProperty, subPropertyMask, changed);
+    return applyValue(fw, m_oldValue.first, maskedNewValue);
+}
+
+// Apply the value and update. Returns corrected value
+PropertyHelper::Value PropertyHelper::applyValue(QDesignerFormWindowInterface *fw, const QVariant &oldValue, Value newValue)
+{
+     if(debugPropertyCommands){
+         qDebug() << "PropertyHelper::applyValue(" << m_object << ") " << oldValue << " -> " << newValue.first << " changed=" << newValue.second;
+     }
+
+    if (m_objectType ==  OT_Widget) {
+        checkApplyWidgetValue(fw, qobject_cast<QWidget *>(m_object), m_specialProperty, newValue.first);
+    }
+
+    m_propertySheet->setProperty(m_index, newValue.first);
+    m_propertySheet->setChanged(m_index, newValue.second);
+
+    switch (m_specialProperty) {
+    case SP_LayoutName:
+    case SP_ObjectName:
+    case SP_SpacerName:
+        ensureUniqueObjectName(fw, m_object);
+        newValue.first = m_propertySheet->property(m_index);
+        break;
+    default:
+        break;
+    }
+
+    updateObject(fw, oldValue, newValue.first);
+    return newValue;
+}
+
+PropertyHelper::Value PropertyHelper::restoreOldValue(QDesignerFormWindowInterface *fw)
+{
+    return applyValue(fw, m_propertySheet->property(m_index), m_oldValue);
+}
+
+// find the default value in widget DB in case PropertySheet::reset fails
+QVariant PropertyHelper::findDefaultValue(QDesignerFormWindowInterface *fw) const
+{
+    if (m_specialProperty == SP_AutoDefault && qobject_cast<const QPushButton*>(m_object)) {
+        // AutoDefault defaults to true on dialogs
+        const bool isDialog = qobject_cast<const QDialog *>(fw->mainContainer());
+        return QVariant(isDialog);
+    }
+
+    const int item_idx = fw->core()->widgetDataBase()->indexOfObject(m_object);
+    if (item_idx == -1)
+        return  m_oldValue.first; // We simply don't know the value in this case
+
+    const QDesignerWidgetDataBaseItemInterface *item = fw->core()->widgetDataBase()->item(item_idx);
+    const QList<QVariant> default_prop_values = item->defaultPropertyValues();
+    if (m_index < default_prop_values.size())
+        return default_prop_values.at(m_index);
+
+    if (m_oldValue.first.type() == QVariant::Color)
+        return QColor();
+
+    return m_oldValue.first; // Again, we just don't know
+}
+
+PropertyHelper::Value PropertyHelper::restoreDefaultValue(QDesignerFormWindowInterface *fw)
+{
+
+    Value defaultValue = qMakePair(QVariant(), false);
+    const QVariant currentValue = m_propertySheet->property(m_index);
+    // try to reset sheet, else try to find default
+    if (m_propertySheet->reset(m_index)) {
+        defaultValue.first = m_propertySheet->property(m_index);
+    } else {
+        defaultValue.first = findDefaultValue(fw);
+        m_propertySheet->setProperty(m_index, defaultValue.first);
+    }
+
+    m_propertySheet->setChanged(m_index, defaultValue.second);
+
+    if (m_objectType == OT_Widget) {
+        checkApplyWidgetValue(fw, qobject_cast<QWidget *>(m_object), m_specialProperty, defaultValue.first);
+    }
+
+    switch (m_specialProperty) {
+    case SP_LayoutName:
+    case SP_ObjectName:
+    case SP_SpacerName:
+        ensureUniqueObjectName(fw, m_object);
+        defaultValue.first = m_propertySheet->property(m_index);
+        break;
+    default:
+        break;
+    }
+
+    updateObject(fw, currentValue, defaultValue.first);
+    return defaultValue;
+}
+
+// ---- PropertyListCommand::PropertyDescription(
+
+
+PropertyListCommand::PropertyDescription::PropertyDescription(const QString &propertyName,
+                                                              QDesignerPropertySheetExtension *propertySheet,
+                                                              int index) :
+    m_propertyName(propertyName),
+    m_propertyGroup(propertySheet->propertyGroup(index)),
+    m_propertyType(propertySheet->property(index).type()),
+    m_specialProperty(getSpecialProperty(propertyName))
+{
+}
+
+PropertyListCommand::PropertyDescription::PropertyDescription() :
+    m_propertyType(QVariant::Invalid),
+    m_specialProperty(SP_None)
+{
+}
+
+void PropertyListCommand::PropertyDescription::debug() const
+{
+    qDebug() << m_propertyName << m_propertyGroup << m_propertyType << m_specialProperty;
+}
+
+bool PropertyListCommand::PropertyDescription::equals(const PropertyDescription &p) const
+{
+    return m_propertyType == p.m_propertyType && m_specialProperty == p.m_specialProperty &&
+           m_propertyName == p.m_propertyName && m_propertyGroup   == p.m_propertyGroup;
+}
+
+
+// ---- PropertyListCommand
+PropertyListCommand::PropertyListCommand(QDesignerFormWindowInterface *formWindow,
+                                         QUndoCommand *parent) :
+    QDesignerFormWindowCommand(QString(), formWindow, parent)
+{
+}
+
+const QString PropertyListCommand::propertyName() const
+{
+    return m_propertyDescription.m_propertyName;
+}
+
+SpecialProperty PropertyListCommand::specialProperty() const
+{
+    return m_propertyDescription.m_specialProperty;
+}
+
+// add an object
+bool PropertyListCommand::add(QObject *object, const QString &propertyName)
+{
+    QDesignerPropertySheetExtension* sheet = propertySheet(object);
+    Q_ASSERT(sheet);
+
+    const int index = sheet->indexOf(propertyName);
+    if (index == -1)
+        return false;
+
+    if (QDesignerPropertySheet *exSheet = qobject_cast<QDesignerPropertySheet*>(core()->extensionManager()->extension(object, Q_TYPEID(QDesignerPropertySheetExtension))))
+        if (!exSheet->isEnabled(index))
+            return false;
+
+    const PropertyDescription description(propertyName, sheet, index);
+
+    if (m_propertyHelperList.empty()) {
+        // first entry
+        m_propertyDescription = description;
+    } else {
+        // checks: mismatch or only one object in case of name
+        const bool match = m_propertyDescription.equals(description);
+        if (!match || m_propertyDescription.m_specialProperty == SP_ObjectName)
+            return false;
+    }
+
+    const PropertyHelperPtr ph(createPropertyHelper(object, m_propertyDescription.m_specialProperty, sheet, index));
+    m_propertyHelperList.push_back(ph);
+    return true;
+}
+
+PropertyHelper *PropertyListCommand::createPropertyHelper(QObject *object, SpecialProperty sp,
+                                                          QDesignerPropertySheetExtension *sheet, int sheetIndex) const
+{
+    return new PropertyHelper(object, sp, sheet, sheetIndex);
+}
+
+// Init from a list and make sure referenceObject is added first to obtain the right property group
+bool PropertyListCommand::initList(const ObjectList &list, const QString &apropertyName, QObject *referenceObject)
+{
+    propertyHelperList().clear();
+
+    // Ensure the referenceObject (property editor) is first, so the right property group is chosen.
+    if (referenceObject) {
+        if (!add(referenceObject, apropertyName))
+            return false;
+    }
+    foreach (QObject *o, list) {
+        if (o != referenceObject)
+            add(o, apropertyName);
+    }
+
+    return !propertyHelperList().empty();
+}
+
+
+QObject* PropertyListCommand::object(int index) const
+{
+    Q_ASSERT(index < m_propertyHelperList.size());
+    return m_propertyHelperList.at(index)->object();
+}
+
+QVariant PropertyListCommand::oldValue(int index) const
+{
+    Q_ASSERT(index < m_propertyHelperList.size());
+    return m_propertyHelperList.at(index)->oldValue();
+}
+
+void PropertyListCommand::setOldValue(const QVariant &oldValue, int index)
+{
+    Q_ASSERT(index < m_propertyHelperList.size());
+    m_propertyHelperList.at(index)->setOldValue(oldValue);
+}
+// ----- SetValueFunction: Set a new value when applied to a PropertyHelper.
+class SetValueFunction {
+public:
+    SetValueFunction(QDesignerFormWindowInterface *formWindow, const PropertyHelper::Value &newValue, unsigned subPropertyMask);
+
+    PropertyHelper::Value operator()(PropertyHelper&);
+private:
+    QDesignerFormWindowInterface *m_formWindow;
+    const PropertyHelper::Value m_newValue;
+    const unsigned m_subPropertyMask;
+};
+
+
+SetValueFunction::SetValueFunction(QDesignerFormWindowInterface *formWindow, const PropertyHelper::Value &newValue, unsigned subPropertyMask) :
+    m_formWindow(formWindow),
+    m_newValue(newValue),
+    m_subPropertyMask(subPropertyMask)
+{
+}
+
+PropertyHelper::Value SetValueFunction::operator()(PropertyHelper &ph) {
+        return ph.setValue(m_formWindow, m_newValue.first, m_newValue.second, m_subPropertyMask);
+}
+
+// ----- UndoSetValueFunction: Restore old value when applied to a PropertyHelper.
+class UndoSetValueFunction {
+public:
+    UndoSetValueFunction(QDesignerFormWindowInterface *formWindow) : m_formWindow(formWindow) {}
+    PropertyHelper::Value operator()(PropertyHelper& ph) { return ph.restoreOldValue(m_formWindow); }
+private:
+    QDesignerFormWindowInterface *m_formWindow;
+};
+
+// ----- RestoreDefaultFunction: Restore default value when applied to a PropertyHelper.
+class RestoreDefaultFunction {
+public:
+    RestoreDefaultFunction(QDesignerFormWindowInterface *formWindow) : m_formWindow(formWindow) {}
+    PropertyHelper::Value operator()(PropertyHelper& ph) { return ph.restoreDefaultValue(m_formWindow); }
+private:
+    QDesignerFormWindowInterface *m_formWindow;
+};
+
+// ----- changePropertyList: Iterates over a sequence of PropertyHelpers and
+// applies a function to them.
+// The function returns the  corrected value which is then set in  the property editor.
+// Returns a combination of update flags.
+template <class PropertyListIterator, class Function>
+        unsigned changePropertyList(QDesignerFormEditorInterface *core,
+                                    const QString &propertyName,
+                                    PropertyListIterator begin,
+                                    PropertyListIterator end,
+                                    Function function)
+{
+    unsigned updateMask = 0;
+    QDesignerPropertyEditorInterface *propertyEditor = core->propertyEditor();
+    bool updatedPropertyEditor = false;
+
+    for (PropertyListIterator it = begin; it != end; ++it) {
+        PropertyHelper *ph = it->data();
+        if (QObject* object = ph->object()) { // Might have been deleted in the meantime
+            const PropertyHelper::Value newValue = function( *ph );
+            updateMask |= ph->updateMask();
+            // Update property editor if it is the current object
+            if (!updatedPropertyEditor && propertyEditor && object == propertyEditor->object()) {
+                propertyEditor->setPropertyValue(propertyName, newValue.first,  newValue.second);
+                updatedPropertyEditor = true;
+            }
+        }
+    }
+    if (!updatedPropertyEditor) updateMask |=  PropertyHelper::UpdatePropertyEditor;
+    return updateMask;
+}
+
+
+// set a new value, return update mask
+unsigned PropertyListCommand::setValue(QVariant value, bool changed, unsigned subPropertyMask)
+{
+    if(debugPropertyCommands)
+        qDebug() << "PropertyListCommand::setValue(" << value
+                 << changed << subPropertyMask << ')';
+    return changePropertyList(formWindow()->core(),
+                              m_propertyDescription.m_propertyName,
+                              m_propertyHelperList.begin(), m_propertyHelperList.end(),
+                              SetValueFunction(formWindow(), PropertyHelper::Value(value, changed), subPropertyMask));
+}
+
+// restore old value,  return update mask
+unsigned PropertyListCommand::restoreOldValue()
+{
+    if(debugPropertyCommands)
+        qDebug() << "PropertyListCommand::restoreOldValue()";
+
+    return changePropertyList(formWindow()->core(),
+                              m_propertyDescription.m_propertyName, m_propertyHelperList.begin(), m_propertyHelperList.end(),
+                              UndoSetValueFunction(formWindow()));
+}
+// set default value,  return update mask
+unsigned PropertyListCommand::restoreDefaultValue()
+{
+    if(debugPropertyCommands)
+        qDebug() << "PropertyListCommand::restoreDefaultValue()";
+
+    return changePropertyList(formWindow()->core(),
+                              m_propertyDescription.m_propertyName, m_propertyHelperList.begin(), m_propertyHelperList.end(),
+                              RestoreDefaultFunction(formWindow()));
+}
+
+// update
+void PropertyListCommand::update(unsigned updateMask)
+{
+    if(debugPropertyCommands)
+        qDebug() << "PropertyListCommand::update(" << updateMask << ')';
+
+    if (updateMask & PropertyHelper::UpdateObjectInspector) {
+        if (QDesignerObjectInspectorInterface *oi = formWindow()->core()->objectInspector())
+            oi->setFormWindow(formWindow());
+    }
+
+    if (updateMask & PropertyHelper::UpdatePropertyEditor) {
+        // this is needed when f.ex. undo, changes parent's palette, but
+        // the child is the active widget,
+        // TODO: current object?
+        if (QDesignerPropertyEditorInterface *propertyEditor = formWindow()->core()->propertyEditor()) {
+            propertyEditor->setObject(propertyEditor->object());
+        }
+    }
+}
+
+void PropertyListCommand::undo()
+{
+    update(restoreOldValue());
+    QDesignerPropertyEditor *designerPropertyEditor = qobject_cast<QDesignerPropertyEditor *>(core()->propertyEditor());
+    if (designerPropertyEditor)
+        designerPropertyEditor->updatePropertySheet();
+}
+
+// check if lists are aequivalent for command merging (same widgets and props)
+bool PropertyListCommand::canMergeLists(const PropertyHelperList& other) const
+{
+    if (m_propertyHelperList.size() !=  other.size())
+        return false;
+    for (int i = 0; i < m_propertyHelperList.size(); i++) {
+        if (!m_propertyHelperList.at(i)->canMerge(*other.at(i)))
+            return false;
+    }
+    return true;
+}
+
+// ---- SetPropertyCommand ----
+SetPropertyCommand::SetPropertyCommand(QDesignerFormWindowInterface *formWindow,
+                                       QUndoCommand *parent)
+    :  PropertyListCommand(formWindow, parent),
+       m_subPropertyMask(SubPropertyAll)
+{
+}
+
+bool SetPropertyCommand::init(QObject *object, const QString &apropertyName, const QVariant &newValue)
+{
+    Q_ASSERT(object);
+
+    m_newValue = newValue;
+
+    propertyHelperList().clear();
+    if (!add(object, apropertyName))
+        return false;
+
+    setDescription();
+    return true;
+}
+
+bool SetPropertyCommand::init(const ObjectList &list, const QString &apropertyName, const QVariant &newValue,
+                              QObject *referenceObject, bool enableSubPropertyHandling)
+{
+    if (!initList(list, apropertyName, referenceObject))
+        return false;
+
+    m_newValue = newValue;
+
+    if(debugPropertyCommands)
+        qDebug() << "SetPropertyCommand::init()" << propertyHelperList().size() << '/' << list.size() << " reference " << referenceObject;
+
+    setDescription();
+
+    if (enableSubPropertyHandling)
+        m_subPropertyMask = subPropertyMask(newValue, referenceObject);
+    return true;
+}
+
+unsigned SetPropertyCommand::subPropertyMask(const QVariant &newValue, QObject *referenceObject)
+{
+    // figure out the mask of changed sub properties when comparing newValue to the current value of the reference object.
+    if (!referenceObject)
+        return SubPropertyAll;
+
+    QDesignerPropertySheetExtension* sheet = propertySheet(referenceObject);
+    Q_ASSERT(sheet);
+
+    const int index = sheet->indexOf(propertyName());
+    if (index == -1 || !sheet->isVisible(index))
+        return SubPropertyAll;
+
+    return compareSubProperties(sheet->property(index), newValue, specialProperty());
+}
+
+void SetPropertyCommand::setDescription()
+{
+    if (propertyHelperList().size() == 1) {
+        setText(QApplication::translate("Command", "Changed '%1' of '%2'").arg(propertyName()).arg(propertyHelperList().at(0)->object()->objectName()));
+    } else {
+        int count = propertyHelperList().size();
+        setText(QApplication::translate("Command", "Changed '%1' of %n objects", "", QCoreApplication::UnicodeUTF8, count).arg(propertyName()));
+    }
+}
+
+void SetPropertyCommand::redo()
+{
+    update(setValue(m_newValue, true, m_subPropertyMask));
+    QDesignerPropertyEditor *designerPropertyEditor = qobject_cast<QDesignerPropertyEditor *>(core()->propertyEditor());
+    if (designerPropertyEditor)
+        designerPropertyEditor->updatePropertySheet();
+}
+
+
+int SetPropertyCommand::id() const
+{
+    return 1976;
+}
+
+QVariant SetPropertyCommand::mergeValue(const QVariant &newValue)
+{
+    return newValue;
+}
+
+bool SetPropertyCommand::mergeWith(const QUndoCommand *other)
+{
+    if (id() != other->id() || !formWindow()->isDirty())
+        return false;
+
+    // Merging: When  for example when the user types ahead in an inplace-editor,
+    // it makes sense to merge all the generated commands containing the one-character changes.
+    // In the case of subproperties, if the user changes the font size from 10 to 30 via 20
+    // and then changes to bold, it makes sense to merge the font size commands only.
+    // This is why the m_subPropertyMask is checked.
+
+    const SetPropertyCommand *cmd = static_cast<const SetPropertyCommand*>(other);
+    if (!propertyDescription().equals(cmd->propertyDescription()) ||
+        m_subPropertyMask  != cmd->m_subPropertyMask ||
+        !canMergeLists(cmd->propertyHelperList()))
+        return false;
+
+    const QVariant newValue = mergeValue(cmd->newValue());
+    if (!newValue.isValid())
+        return false;
+    m_newValue = newValue;
+    m_subPropertyMask |= cmd->m_subPropertyMask;
+    if(debugPropertyCommands)
+        qDebug() << "SetPropertyCommand::mergeWith() succeeded " << propertyName();
+
+    return true;
+}
+
+// ---- ResetPropertyCommand ----
+ResetPropertyCommand::ResetPropertyCommand(QDesignerFormWindowInterface *formWindow)
+    : PropertyListCommand(formWindow)
+{
+}
+
+bool ResetPropertyCommand::init(QObject *object, const QString &apropertyName)
+{
+    Q_ASSERT(object);
+
+    propertyHelperList().clear();
+    if (!add(object, apropertyName))
+        return false;
+
+    setDescription();
+    return true;
+}
+
+bool ResetPropertyCommand::init(const ObjectList &list, const QString &apropertyName, QObject *referenceObject)
+{
+    if (!initList(list, apropertyName, referenceObject))
+        return false;
+
+    if(debugPropertyCommands)
+        qDebug() << "ResetPropertyCommand::init()" << propertyHelperList().size() << '/' << list.size();
+
+    setDescription();
+    return true;
+}
+
+void ResetPropertyCommand::setDescription()
+{
+    if (propertyHelperList().size() == 1) {
+        setText(QApplication::translate("Command", "Reset '%1' of '%2'").arg(propertyName()).arg(propertyHelperList().at(0)->object()->objectName()));
+    } else {
+        int count = propertyHelperList().size();
+        setText(QApplication::translate("Command", "Reset '%1' of %n objects", "", QCoreApplication::UnicodeUTF8, count).arg(propertyName()));
+    }
+}
+
+void ResetPropertyCommand::redo()
+{
+    update(restoreDefaultValue());
+    QDesignerPropertyEditor *designerPropertyEditor = qobject_cast<QDesignerPropertyEditor *>(core()->propertyEditor());
+    if (designerPropertyEditor)
+        designerPropertyEditor->updatePropertySheet();
+}
+
+AddDynamicPropertyCommand::AddDynamicPropertyCommand(QDesignerFormWindowInterface *formWindow)
+    : QDesignerFormWindowCommand(QString(), formWindow)
+{
+
+}
+
+bool AddDynamicPropertyCommand::init(const QList<QObject *> &selection, QObject *current,
+            const QString &propertyName, const QVariant &value)
+{
+    Q_ASSERT(current);
+    m_propertyName = propertyName;
+
+    QDesignerFormEditorInterface *core = formWindow()->core();
+    QDesignerDynamicPropertySheetExtension *dynamicSheet = qt_extension<QDesignerDynamicPropertySheetExtension*>(core->extensionManager(), current);
+    Q_ASSERT(dynamicSheet);
+
+    m_selection.clear();
+
+    if (!value.isValid())
+        return false;
+
+    if (!dynamicSheet->canAddDynamicProperty(m_propertyName))
+        return false;
+
+    m_selection.append(current);
+
+    m_value = value;
+
+    QListIterator<QObject *> it(selection);
+    while (it.hasNext()) {
+        QObject *obj = it.next();
+        if (m_selection.contains(obj))
+            continue;
+        dynamicSheet = qt_extension<QDesignerDynamicPropertySheetExtension*>(core->extensionManager(), obj);
+        Q_ASSERT(dynamicSheet);
+        if (dynamicSheet->canAddDynamicProperty(m_propertyName))
+            m_selection.append(obj);
+    }
+
+    setDescription();
+    return true;
+}
+
+void AddDynamicPropertyCommand::redo()
+{
+    QDesignerFormEditorInterface *core = formWindow()->core();
+    QListIterator<QObject *> it(m_selection);
+    while (it.hasNext()) {
+        QObject *obj = it.next();
+        QDesignerDynamicPropertySheetExtension *dynamicSheet = qt_extension<QDesignerDynamicPropertySheetExtension*>(core->extensionManager(), obj);
+        dynamicSheet->addDynamicProperty(m_propertyName, m_value);
+        if (QDesignerPropertyEditorInterface *propertyEditor = formWindow()->core()->propertyEditor()) {
+            if (propertyEditor->object() == obj)
+                propertyEditor->setObject(obj);
+        }
+    }
+}
+
+void AddDynamicPropertyCommand::undo()
+{
+    QDesignerFormEditorInterface *core = formWindow()->core();
+    QListIterator<QObject *> it(m_selection);
+    while (it.hasNext()) {
+        QObject *obj = it.next();
+        QDesignerPropertySheetExtension *sheet = qt_extension<QDesignerPropertySheetExtension*>(core->extensionManager(), obj);
+        QDesignerDynamicPropertySheetExtension *dynamicSheet = qt_extension<QDesignerDynamicPropertySheetExtension*>(core->extensionManager(), obj);
+        dynamicSheet->removeDynamicProperty(sheet->indexOf(m_propertyName));
+        if (QDesignerPropertyEditorInterface *propertyEditor = formWindow()->core()->propertyEditor()) {
+            if (propertyEditor->object() == obj)
+                propertyEditor->setObject(obj);
+        }
+    }
+}
+
+void AddDynamicPropertyCommand::setDescription()
+{
+    if (m_selection.size() == 1) {
+        setText(QApplication::translate("Command", "Add dynamic property '%1' to '%2'").arg(m_propertyName).arg(m_selection.first()->objectName()));
+    } else {
+        int count = m_selection.size();
+        setText(QApplication::translate("Command", "Add dynamic property '%1' to %n objects", "", QCoreApplication::UnicodeUTF8, count).arg(m_propertyName));
+    }
+}
+
+
+RemoveDynamicPropertyCommand::RemoveDynamicPropertyCommand(QDesignerFormWindowInterface *formWindow)
+    : QDesignerFormWindowCommand(QString(), formWindow)
+{
+
+}
+
+bool RemoveDynamicPropertyCommand::init(const QList<QObject *> &selection, QObject *current,
+            const QString &propertyName)
+{
+    Q_ASSERT(current);
+    m_propertyName = propertyName;
+
+    QDesignerFormEditorInterface *core = formWindow()->core();
+    QDesignerPropertySheetExtension *propertySheet = qt_extension<QDesignerPropertySheetExtension*>(core->extensionManager(), current);
+    Q_ASSERT(propertySheet);
+    QDesignerDynamicPropertySheetExtension *dynamicSheet = qt_extension<QDesignerDynamicPropertySheetExtension*>(core->extensionManager(), current);
+    Q_ASSERT(dynamicSheet);
+
+    m_objectToValueAndChanged.clear();
+
+    const int index = propertySheet->indexOf(m_propertyName);
+    if (!dynamicSheet->isDynamicProperty(index))
+        return false;
+
+    m_objectToValueAndChanged[current] = qMakePair(propertySheet->property(index), propertySheet->isChanged(index));
+
+    QListIterator<QObject *> it(selection);
+    while (it.hasNext()) {
+        QObject *obj = it.next();
+        if (m_objectToValueAndChanged.contains(obj))
+            continue;
+
+        propertySheet = qt_extension<QDesignerPropertySheetExtension*>(core->extensionManager(), obj);
+        dynamicSheet = qt_extension<QDesignerDynamicPropertySheetExtension*>(core->extensionManager(), obj);
+        const int idx = propertySheet->indexOf(m_propertyName);
+        if (dynamicSheet->isDynamicProperty(idx))
+            m_objectToValueAndChanged[obj] = qMakePair(propertySheet->property(idx), propertySheet->isChanged(idx));
+    }
+
+    setDescription();
+    return true;
+}
+
+void RemoveDynamicPropertyCommand::redo()
+{
+    QDesignerFormEditorInterface *core = formWindow()->core();
+    QMap<QObject *, QPair<QVariant, bool> >::ConstIterator it = m_objectToValueAndChanged.constBegin();
+    while (it != m_objectToValueAndChanged.constEnd()) {
+        QObject *obj = it.key();
+        QDesignerDynamicPropertySheetExtension *dynamicSheet = qt_extension<QDesignerDynamicPropertySheetExtension*>(core->extensionManager(), obj);
+        QDesignerPropertySheetExtension *sheet = qt_extension<QDesignerPropertySheetExtension*>(core->extensionManager(), obj);
+        dynamicSheet->removeDynamicProperty(sheet->indexOf(m_propertyName));
+        if (QDesignerPropertyEditorInterface *propertyEditor = formWindow()->core()->propertyEditor()) {
+            if (propertyEditor->object() == obj)
+                propertyEditor->setObject(obj);
+        }
+        ++it;
+    }
+}
+
+void RemoveDynamicPropertyCommand::undo()
+{
+    QDesignerFormEditorInterface *core = formWindow()->core();
+    QMap<QObject *, QPair<QVariant, bool> >::ConstIterator it = m_objectToValueAndChanged.constBegin();
+    while (it != m_objectToValueAndChanged.constEnd()) {
+        QObject *obj = it.key();
+        QDesignerPropertySheetExtension *propertySheet = qt_extension<QDesignerPropertySheetExtension*>(core->extensionManager(), obj);
+        QDesignerDynamicPropertySheetExtension *dynamicSheet = qt_extension<QDesignerDynamicPropertySheetExtension*>(core->extensionManager(), obj);
+        const int index = dynamicSheet->addDynamicProperty(m_propertyName, it.value().first);
+        propertySheet->setChanged(index, it.value().second);
+        if (QDesignerPropertyEditorInterface *propertyEditor = formWindow()->core()->propertyEditor()) {
+            if (propertyEditor->object() == obj)
+                propertyEditor->setObject(obj);
+        }
+        ++it;
+    }
+}
+
+void RemoveDynamicPropertyCommand::setDescription()
+{
+    if (m_objectToValueAndChanged.size() == 1) {
+        setText(QApplication::translate("Command", "Remove dynamic property '%1' from '%2'").arg(m_propertyName).arg(m_objectToValueAndChanged.constBegin().key()->objectName()));
+    } else {
+        int count = m_objectToValueAndChanged.size();
+        setText(QApplication::translate("Command", "Remove dynamic property '%1' from %n objects", "", QCoreApplication::UnicodeUTF8, count).arg(m_propertyName));
+    }
+}
+
+
+} // namespace qdesigner_internal
+
+QT_END_NAMESPACE