abstractformbuilder.cpp

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                    if (dockWidget->isAreaAllowed(Qt::LeftDockWidgetArea))
                        area = Qt::LeftDockWidgetArea;
                    else if (dockWidget->isAreaAllowed(Qt::RightDockWidgetArea))
                        area = Qt::RightDockWidgetArea;
                    else if (dockWidget->isAreaAllowed(Qt::TopDockWidgetArea))
                        area = Qt::TopDockWidgetArea;
                    else if (dockWidget->isAreaAllowed(Qt::BottomDockWidgetArea))
                        area = Qt::BottomDockWidgetArea;
                }
                mw->addDockWidget(area, dockWidget);
            } else {
                mw->addDockWidget(Qt::LeftDockWidgetArea, dockWidget);
            }
            return true;
        }

        else if (! mw->centralWidget()) {
            mw->setCentralWidget(widget);
            return true;
        }
    }

    else if (QTabWidget *tabWidget = qobject_cast<QTabWidget*>(parentWidget)) {
        widget->setParent(0);

        const int tabIndex = tabWidget->count();
        tabWidget->addTab(widget, title);

        if (DomProperty *picon = attributes.value(QLatin1String("icon"))) {
            tabWidget->setTabIcon(tabIndex, qvariant_cast<QIcon>(toVariant(0, picon)));
        }

        if (const DomProperty *ptoolTip = attributes.value(QLatin1String("toolTip"))) {
            tabWidget->setTabToolTip(tabIndex, toString(ptoolTip->elementString()));
        }

        return true;
    }

    else if (QToolBox *toolBox = qobject_cast<QToolBox*>(parentWidget)) {
        const int tabIndex = toolBox->count();
        toolBox->addItem(widget, label);

        if (DomProperty *picon = attributes.value(QLatin1String("icon"))) {
            toolBox->setItemIcon(tabIndex, qvariant_cast<QIcon>(toVariant(0, picon)));
        }

        if (const DomProperty *ptoolTip = attributes.value(QLatin1String("toolTip"))) {
            toolBox->setItemToolTip(tabIndex, toString(ptoolTip->elementString()));
        }

        return true;
    }

    else if (QStackedWidget *stackedWidget = qobject_cast<QStackedWidget*>(parentWidget)) {
        stackedWidget->addWidget(widget);
        return true;
    }

    else if (QSplitter *splitter = qobject_cast<QSplitter*>(parentWidget)) {
        splitter->addWidget(widget);
        return true;
    }

    else if (QDockWidget *dockWidget = qobject_cast<QDockWidget*>(parentWidget)) {
        dockWidget->setWidget(widget);
        return true;
    }

    return false;
}

/*!
    \internal
*/
void QAbstractFormBuilder::layoutInfo(DomLayout *ui_layout, QObject *parent, int *margin, int *spacing)
{
    Q_UNUSED(parent)
    const DomPropertyHash properties = propertyMap(ui_layout->elementProperty());

    int mar = INT_MIN;
    int spac = INT_MIN;
    if (properties.contains(QLatin1String("margin")))
        mar = properties.value(QLatin1String("margin"))->elementNumber();

    if (properties.contains(QLatin1String("spacing")))
        spac = properties.value(QLatin1String("spacing"))->elementNumber();

#ifdef Q_OS_MAC
    // here we recognize ui file < 4.3 (no we don't store margin property)
    if (mar != INT_MIN) {
        int defaultMargin = 9;
        if (parent->inherits("QLayoutWidget"))
            defaultMargin = 0;
        if (mar == defaultMargin)
            mar = INT_MIN;
        if (spac == 6)
            spac = INT_MIN;

        if (mar == INT_MIN || spac == INT_MIN) {
            QList<DomProperty *> properties = ui_layout->elementProperty();
            QMutableListIterator<DomProperty *> it(properties);
            while (it.hasNext()) {
                DomProperty *prop = it.next();
                if ((mar == INT_MIN && prop->attributeName() == QLatin1String("margin")) ||
                        (spac == INT_MIN && prop->attributeName() == QLatin1String("spacing"))) {
                    it.remove();
                    delete prop;
                }
            }
            ui_layout->setElementProperty(properties);
        }
    }
#endif
    if (margin)
        *margin = mar;
    if (spacing)
        *spacing = spac;
}

/*!
    \internal
*/
QLayout *QAbstractFormBuilder::create(DomLayout *ui_layout, QLayout *parentLayout, QWidget *parentWidget)
{
    QObject *p = parentLayout;

    if (p == 0)
        p = parentWidget;

    Q_ASSERT(p != 0);

    bool tracking = false;

    if (p == parentWidget && parentWidget->layout()) {
        tracking = true;
        p = parentWidget->layout();
    }

    QLayout *layout = createLayout(ui_layout->attributeClass(), p, QString());

    if (layout == 0)
        return 0;

    if (tracking && layout->parent() == 0) {
        QBoxLayout *box = qobject_cast<QBoxLayout*>(parentWidget->layout());
        Q_ASSERT(box != 0); // only QBoxLayout is supported
        box->addLayout(layout);
    }

    int margin = INT_MIN, spacing = INT_MIN;
    layoutInfo(ui_layout, p, &margin, &spacing);

    if (margin != INT_MIN) {
        layout->setMargin(margin);
    } else {
        int left, top, right, bottom;
        left = top = right = bottom = -1;
        layout->getContentsMargins(&left, &top, &right, &bottom);

        const DomPropertyHash properties = propertyMap(ui_layout->elementProperty());

        if (properties.contains(QLatin1String("leftMargin")))
            left = properties.value(QLatin1String("leftMargin"))->elementNumber();

        if (properties.contains(QLatin1String("topMargin")))
            top = properties.value(QLatin1String("topMargin"))->elementNumber();

        if (properties.contains(QLatin1String("rightMargin")))
            right = properties.value(QLatin1String("rightMargin"))->elementNumber();

        if (properties.contains(QLatin1String("bottomMargin")))
            bottom = properties.value(QLatin1String("bottomMargin"))->elementNumber();

        layout->setContentsMargins(left, top, right, bottom);
    }

    if (spacing != INT_MIN) {
        layout->setSpacing(spacing);
    } else {
        QGridLayout *grid = qobject_cast<QGridLayout *>(layout);
        if (grid) {
            const DomPropertyHash properties = propertyMap(ui_layout->elementProperty());

            if (properties.contains(QLatin1String("horizontalSpacing")))
                grid->setHorizontalSpacing(properties.value(QLatin1String("horizontalSpacing"))->elementNumber());
            if (properties.contains(QLatin1String("verticalSpacing")))
                grid->setVerticalSpacing(properties.value(QLatin1String("verticalSpacing"))->elementNumber());
        }
    }

    applyProperties(layout, ui_layout->elementProperty());

    foreach (DomLayoutItem *ui_item, ui_layout->elementItem()) {
        if (QLayoutItem *item = create(ui_item, layout, parentWidget)) {
            addItem(ui_item, item, layout);
        }
    }

    return layout;
}

/*!
    \internal
*/
bool QAbstractFormBuilder::addItem(DomLayoutItem *ui_item, QLayoutItem *item, QLayout *layout)
{
    if (item->widget()) {
        static_cast<QFriendlyLayout*>(layout)->addChildWidget(item->widget());
    } else if (item->layout()) {
        static_cast<QFriendlyLayout*>(layout)->addChildLayout(item->layout());
    } else if (item->spacerItem()) {
        // nothing to do
    } else {
        return false;
    }

    if (QGridLayout *grid = qobject_cast<QGridLayout*>(layout)) {
        const int rowSpan = ui_item->hasAttributeRowSpan() ? ui_item->attributeRowSpan() : 1;
        const int colSpan = ui_item->hasAttributeColSpan() ? ui_item->attributeColSpan() : 1;
        grid->addItem(item, ui_item->attributeRow(), ui_item->attributeColumn(),
                        rowSpan, colSpan, item->alignment());
    } else {
        layout->addItem(item);
    }

    return true;
}

/*!
    \internal
*/
QLayoutItem *QAbstractFormBuilder::create(DomLayoutItem *ui_layoutItem, QLayout *layout, QWidget *parentWidget)
{
    switch (ui_layoutItem->kind()) {
    case DomLayoutItem::Widget:
        return new QWidgetItem(create(ui_layoutItem->elementWidget(), parentWidget));

    case DomLayoutItem::Spacer: {
        QSize size(0, 0);
        QSizePolicy::Policy sizeType = QSizePolicy::Expanding;
        bool isVspacer = false;

        const DomSpacer *ui_spacer = ui_layoutItem->elementSpacer();

        const QMetaEnum sizePolicy_enum  = metaEnum<QAbstractFormBuilderGadget>("sizeType");
        const QMetaEnum orientation_enum =  metaEnum<QAbstractFormBuilderGadget>("orientation");

        foreach (DomProperty *p, ui_spacer->elementProperty()) {
            const QVariant v = toVariant(&QAbstractFormBuilderGadget::staticMetaObject, p); // ### remove me
            if (v.isNull())
                continue;

            if (p->attributeName() == QLatin1String("sizeHint") && p->kind() == DomProperty::Size) {
                size = v.toSize();  // ###  remove me
            } else if (p->attributeName() == QLatin1String("sizeType") && p->kind() == DomProperty::Enum) {
                sizeType = enumKeyToValue<QSizePolicy::Policy>(sizePolicy_enum, p->elementEnum().toUtf8());
            } else if (p->attributeName() == QLatin1String("orientation") && p->kind() == DomProperty::Enum) {
                const Qt::Orientation o = enumKeyToValue<Qt::Orientation>(orientation_enum, p->elementEnum().toUtf8());
                isVspacer = (o == Qt::Vertical);
            }
        }

        QSpacerItem *spacer = 0;
        if (isVspacer)
            spacer = new QSpacerItem(size.width(), size.height(), QSizePolicy::Minimum, sizeType);
        else
            spacer = new QSpacerItem(size.width(), size.height(), sizeType, QSizePolicy::Minimum);
        return spacer; }

    case DomLayoutItem::Layout:
        return create(ui_layoutItem->elementLayout(), layout, parentWidget);

    default:
        break;
    }

    return 0;
}

/*!
    \internal
*/
void QAbstractFormBuilder::applyProperties(QObject *o, const QList<DomProperty*> &properties)
{
    typedef QList<DomProperty*> DomPropertyList;

    if (properties.empty())
        return;

    QFormBuilderExtra *fb = QFormBuilderExtra::instance(this);

    const DomPropertyList::const_iterator cend = properties.constEnd();
    for (DomPropertyList::const_iterator it = properties.constBegin(); it != cend; ++it) {
        const QVariant v = toVariant(o->metaObject(), *it);
        if (!v.isNull()) {
            const  QString attributeName = (*it)->attributeName();
            if (!fb->applyPropertyInternally(o, attributeName, v))
                o->setProperty(attributeName.toUtf8(), v);
        }
    }
}


/*!
    \internal
    Check whether a property is applied internally by QAbstractFormBuilder. Call this
   from overwritten applyProperties().
*/

bool QAbstractFormBuilder::applyPropertyInternally(QObject *o, const QString &propertyName, const QVariant &value)
{
    return QFormBuilderExtra::instance(this)->applyPropertyInternally(o,propertyName, value);
}

/*!
    \internal
*/

QVariant QAbstractFormBuilder::toVariant(const QMetaObject *meta, DomProperty *p)
{
    return domPropertyToVariant(this, meta, p);
}

/*!
    \internal
*/
void QAbstractFormBuilder::setupColorGroup(QPalette &palette, QPalette::ColorGroup colorGroup,
            DomColorGroup *group)
{
    // old format
    const QList<DomColor*> colors = group->elementColor();
    for (int role = 0; role < colors.size(); ++role) {
        const DomColor *color = colors.at(role);
        const QColor c(color->elementRed(), color->elementGreen(), color->elementBlue());
        palette.setColor(colorGroup, QPalette::ColorRole(role), c);
    }

    // new format
    const QMetaEnum colorRole_enum = metaEnum<QAbstractFormBuilderGadget>("colorRole");

    const QList<DomColorRole*> colorRoles = group->elementColorRole();
    for (int role = 0; role < colorRoles.size(); ++role) {
        const DomColorRole *colorRole = colorRoles.at(role);

        if (colorRole->hasAttributeRole()) {
            const int r = colorRole_enum.keyToValue(colorRole->attributeRole().toLatin1());
            if (r != -1) {
                const QBrush br = setupBrush(colorRole->elementBrush());
                palette.setBrush(colorGroup, static_cast<QPalette::ColorRole>(r), br);
            }
        }
    }
}

/*!
    \internal
*/
DomColorGroup *QAbstractFormBuilder::saveColorGroup(const QPalette &palette)
{

    const QMetaEnum colorRole_enum = metaEnum<QAbstractFormBuilderGadget>("colorRole");

    DomColorGroup *group = new DomColorGroup();
    QList<DomColorRole*> colorRoles;

    const uint mask = palette.resolve();
    for (int role = QPalette::WindowText; role < QPalette::NColorRoles; ++role) {
        if (mask & (1 << role)) {
            QBrush br = palette.brush(QPalette::ColorRole(role));

            DomColorRole *colorRole = new DomColorRole();
            colorRole->setElementBrush(saveBrush(br));
            colorRole->setAttributeRole(QLatin1String(colorRole_enum.valueToKey(role)));
            colorRoles.append(colorRole);
        }
    }

    group->setElementColorRole(colorRoles);
    return group;
}

/*!
    \internal
*/
QBrush QAbstractFormBuilder::setupBrush(DomBrush *brush)
{
    QBrush br;
    if (!brush->hasAttributeBrushStyle())
        return br;

    const Qt::BrushStyle style = enumKeyOfObjectToValue<QAbstractFormBuilderGadget, Qt::BrushStyle>("brushStyle", brush->attributeBrushStyle().toLatin1());

    if (style == Qt::LinearGradientPattern ||
            style == Qt::RadialGradientPattern ||
            style == Qt::ConicalGradientPattern) {
        const QMetaEnum gradientType_enum = metaEnum<QAbstractFormBuilderGadget>("gradientType");
        const QMetaEnum gradientSpread_enum = metaEnum<QAbstractFormBuilderGadget>("gradientSpread");
        const QMetaEnum gradientCoordinate_enum = metaEnum<QAbstractFormBuilderGadget>("gradientCoordinate");

        const DomGradient *gradient = brush->elementGradient();
        const QGradient::Type type = enumKeyToValue<QGradient::Type>(gradientType_enum, gradient->attributeType().toLatin1());