abstractformbuilder.cpp

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        QGradient *gr = 0;

        if (type == QGradient::LinearGradient) {
            gr = new QLinearGradient(QPointF(gradient->attributeStartX(), gradient->attributeStartY()),
                            QPointF(gradient->attributeEndX(), gradient->attributeEndY()));
        } else if (type == QGradient::RadialGradient) {
            gr = new QRadialGradient(QPointF(gradient->attributeCentralX(), gradient->attributeCentralY()),
                            gradient->attributeRadius(),
                            QPointF(gradient->attributeFocalX(), gradient->attributeFocalY()));
        } else if (type == QGradient::ConicalGradient) {
            gr = new QConicalGradient(QPointF(gradient->attributeCentralX(), gradient->attributeCentralY()),
                            gradient->attributeAngle());
        }
        if (!gr)
            return br;

        const QGradient::Spread spread = enumKeyToValue<QGradient::Spread>(gradientSpread_enum, gradient->attributeSpread().toLatin1());
        gr->setSpread(spread);

        const QGradient::CoordinateMode coord = enumKeyToValue<QGradient::CoordinateMode>(gradientCoordinate_enum, gradient->attributeCoordinateMode().toLatin1());
        gr->setCoordinateMode(coord);

        const QList<DomGradientStop *> stops = gradient->elementGradientStop();
        QListIterator<DomGradientStop *> it(stops);
        while (it.hasNext()) {
            const DomGradientStop *stop = it.next();
            const DomColor *color = stop->elementColor();
            gr->setColorAt(stop->attributePosition(), QColor::fromRgb(color->elementRed(),
                            color->elementGreen(), color->elementBlue(), color->attributeAlpha()));
        }
        br = QBrush(*gr);
        delete gr;
    } else if (style == Qt::TexturePattern) {
        const DomProperty *texture = brush->elementTexture();
        if (texture && texture->kind() == DomProperty::Pixmap) {
            br.setTexture(domPropertyToPixmap(texture));
        }
    } else {
        const DomColor *color = brush->elementColor();
        br.setColor(QColor::fromRgb(color->elementRed(),
                            color->elementGreen(), color->elementBlue(), color->attributeAlpha()));
        br.setStyle((Qt::BrushStyle)style);
    }
    return br;
}

/*!
    \internal
*/
DomBrush *QAbstractFormBuilder::saveBrush(const QBrush &br)
{
    const QMetaEnum brushStyle_enum = metaEnum<QAbstractFormBuilderGadget>("brushStyle");

    DomBrush *brush = new DomBrush();
    const Qt::BrushStyle style = br.style();
    brush->setAttributeBrushStyle(QLatin1String(brushStyle_enum.valueToKey(style)));
    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");

        DomGradient *gradient = new DomGradient();
        const QGradient *gr = br.gradient();
        const QGradient::Type type = gr->type();
        gradient->setAttributeType(QLatin1String(gradientType_enum.valueToKey(type)));
        gradient->setAttributeSpread(QLatin1String(gradientSpread_enum.valueToKey(gr->spread())));
        gradient->setAttributeCoordinateMode(QLatin1String(gradientCoordinate_enum.valueToKey(gr->coordinateMode())));
        QList<DomGradientStop *> stops;
        QGradientStops st = gr->stops();
        QVectorIterator<QPair<qreal, QColor> > it(st);
        while (it.hasNext()) {
            const QPair<qreal, QColor> pair = it.next();
            DomGradientStop *stop = new DomGradientStop();
            stop->setAttributePosition(pair.first);
            DomColor *color = new DomColor();
            color->setElementRed(pair.second.red());
            color->setElementGreen(pair.second.green());
            color->setElementBlue(pair.second.blue());
            color->setAttributeAlpha(pair.second.alpha());
            stop->setElementColor(color);
            stops.append(stop);
        }
        gradient->setElementGradientStop(stops);
        if (type == QGradient::LinearGradient) {
            QLinearGradient *lgr = (QLinearGradient *)(gr);
            gradient->setAttributeStartX(lgr->start().x());
            gradient->setAttributeStartY(lgr->start().y());
            gradient->setAttributeEndX(lgr->finalStop().x());
            gradient->setAttributeEndY(lgr->finalStop().y());
        } else if (type == QGradient::RadialGradient) {
            QRadialGradient *rgr = (QRadialGradient *)(gr);
            gradient->setAttributeCentralX(rgr->center().x());
            gradient->setAttributeCentralY(rgr->center().y());
            gradient->setAttributeFocalX(rgr->focalPoint().x());
            gradient->setAttributeFocalY(rgr->focalPoint().y());
            gradient->setAttributeRadius(rgr->radius());
        } else if (type == QGradient::ConicalGradient) {
            QConicalGradient *cgr = (QConicalGradient *)(gr);
            gradient->setAttributeCentralX(cgr->center().x());
            gradient->setAttributeCentralY(cgr->center().y());
            gradient->setAttributeAngle(cgr->angle());
        }

        brush->setElementGradient(gradient);
    } else if (style == Qt::TexturePattern) {
        const QPixmap pixmap = br.texture();
        if (!pixmap.isNull()) {
            DomProperty *p = new DomProperty;
            setPixmapProperty(*p,  pixmapPaths(pixmap));
            brush->setElementTexture(p);
        }
    } else {
        QColor c = br.color();
        DomColor *color = new DomColor();
        color->setElementRed(c.red());
        color->setElementGreen(c.green());
        color->setElementBlue(c.blue());
        color->setAttributeAlpha(c.alpha());
        brush->setElementColor(color);
    }
    return brush;
}

/*!
    \internal
*/
QWidget *QAbstractFormBuilder::createWidget(const QString &widgetName, QWidget *parentWidget, const QString &name)
{
    Q_UNUSED(widgetName);
    Q_UNUSED(parentWidget);
    Q_UNUSED(name);
    return 0;
}

/*!
    \internal
*/
QLayout *QAbstractFormBuilder::createLayout(const QString &layoutName, QObject *parent, const QString &name)
{
    Q_UNUSED(layoutName);
    Q_UNUSED(parent);
    Q_UNUSED(name);
    return 0;
}

/*!
    \internal
*/
QAction *QAbstractFormBuilder::createAction(QObject *parent, const QString &name)
{
    QAction *action = new QAction(parent);
    action->setObjectName(name);
    m_actions.insert(name, action);

    return action;
}

/*!
    \internal
*/
QActionGroup *QAbstractFormBuilder::createActionGroup(QObject *parent, const QString &name)
{
    QActionGroup *g = new QActionGroup(parent);
    g->setObjectName(name);
    m_actionGroups.insert(name, g);

    return g;
}

/*!
    \fn void QAbstractFormBuilder::save(QIODevice *device, QWidget *widget)

    Saves an XML representation of the given \a widget to the
    specified \a device in the standard \c{.ui} file format.

    \sa load()*/
void QAbstractFormBuilder::save(QIODevice *dev, QWidget *widget)
{
    DomWidget *ui_widget = createDom(widget, 0);
    Q_ASSERT( ui_widget != 0 );

    DomUI *ui = new DomUI();
    ui->setAttributeVersion(QLatin1String("4.0"));
    ui->setElementWidget(ui_widget);

    saveDom(ui, widget);

    QDomDocument doc;
    doc.appendChild(ui->write(doc));
    QByteArray bytes = doc.toString().toUtf8();
    dev->write(bytes, bytes.size());

    m_laidout.clear();

    delete ui;
}

/*!
    \internal
*/
void QAbstractFormBuilder::saveDom(DomUI *ui, QWidget *widget)
{
    ui->setElementClass(widget->objectName());

    if (DomConnections *ui_connections = saveConnections()) {
        ui->setElementConnections(ui_connections);
    }

    if (DomCustomWidgets *ui_customWidgets = saveCustomWidgets()) {
        ui->setElementCustomWidgets(ui_customWidgets);
    }

    if (DomTabStops *ui_tabStops = saveTabStops()) {
        ui->setElementTabStops(ui_tabStops);
    }

    if (DomResources *ui_resources = saveResources()) {
        ui->setElementResources(ui_resources);
    }
}

/*!
    \internal
*/
DomConnections *QAbstractFormBuilder::saveConnections()
{
    return new DomConnections;
}

/*!
    \internal
*/

DomWidget *QAbstractFormBuilder::createDom(QWidget *widget, DomWidget *ui_parentWidget, bool recursive)
{
    DomWidget *ui_widget = new DomWidget();
    ui_widget->setAttributeClass(QLatin1String(widget->metaObject()->className()));
    ui_widget->setElementProperty(computeProperties(widget));

    if (recursive) {
        if (QLayout *layout = widget->layout()) {
            if (DomLayout *ui_layout = createDom(layout, 0, ui_parentWidget)) {
                QList<DomLayout*> ui_layouts;
                ui_layouts.append(ui_layout);

                ui_widget->setElementLayout(ui_layouts);
            }
        }
    }

    // widgets, actions and action groups
    QList<DomWidget*> ui_widgets;
    QList<DomAction*> ui_actions;
    QList<DomActionGroup*> ui_action_groups;

    QList<QObject*> children;

    // splitters need to store their children in the order specified by child indexes,
    // not the order of the child list.
    if (QSplitter *splitter = qobject_cast<QSplitter*>(widget)) {
        for (int i = 0; i < splitter->count(); ++i)
            children.append(splitter->widget(i));
    } else {
        QList<QObject *> childObjects = widget->children();

        QList<QWidget *> list = qVariantValue<QWidgetList>(widget->property("_q_widgetOrder"));
        foreach (QWidget *w, list) {
            if (childObjects.contains(w)) {
                children.append(w);
                childObjects.removeAll(w);
            }
        }
        children += childObjects;
    }

    foreach (QObject *obj, children) {
        if (QWidget *childWidget = qobject_cast<QWidget*>(obj)) {
            if (m_laidout.contains(childWidget) || recursive == false)
                continue;

            if (QMenu *menu = qobject_cast<QMenu *>(childWidget)) {
                QList<QAction *> actions = menu->parentWidget()->actions();
                QListIterator<QAction *> it(actions);
                bool found = false;
                while (it.hasNext()) {
                    if (it.next()->menu() == menu)
                        found = true;
                }
                if (!found)
                    continue;
            }

            if (DomWidget *ui_child = createDom(childWidget, ui_widget)) {
                ui_widgets.append(ui_child);
            }
        } else if (QAction *childAction = qobject_cast<QAction*>(obj)) {
            if (childAction->actionGroup() != 0) {
                // it will be added later.
                continue;
            }

            if (DomAction *ui_action = createDom(childAction)) {
                ui_actions.append(ui_action);
            }
        } else if (QActionGroup *childActionGroup = qobject_cast<QActionGroup*>(obj)) {
            if (DomActionGroup *ui_action_group = createDom(childActionGroup)) {
                ui_action_groups.append(ui_action_group);
            }
        }
    }

    // add-action
    QList<DomActionRef*> ui_action_refs;
    foreach (QAction *action, widget->actions()) {
        if (DomActionRef *ui_action_ref = createActionRefDom(action)) {
            ui_action_refs.append(ui_action_ref);
        }
    }

    if (recursive)
        ui_widget->setElementWidget(ui_widgets);

    ui_widget->setElementAction(ui_actions);
    ui_widget->setElementActionGroup(ui_action_groups);
    ui_widget->setElementAddAction(ui_action_refs);

    saveExtraInfo(widget, ui_widget, ui_parentWidget);

    return ui_widget;
}

/*!
    \internal
*/
DomActionRef *QAbstractFormBuilder::createActionRefDom(QAction *action)
{
    QString name = action->objectName();

    if (action->menu() != 0)
        name = action->menu()->objectName();

    DomActionRef *ui_action_ref = new DomActionRef();
    if (action->isSeparator())
        ui_action_ref->setAttributeName(QLatin1String("separator"));
    else
        ui_action_ref->setAttributeName(name);

    return ui_action_ref;
}

/*!
    \internal
*/
DomLayout *QAbstractFormBuilder::createDom(QLayout *layout, DomLayout *ui_layout, DomWidget *ui_parentWidget)
{
    Q_UNUSED(ui_layout)
    DomLayout *lay = new DomLayout();
    lay->setAttributeClass(QLatin1String(layout->metaObject()->className()));
    lay->setElementProperty(computeProperties(layout));

    QList<DomLayoutItem*> ui_items;

    QMap<QObject *, QLayoutItem *> objectToItem;
    QList<QLayoutItem *> spacerItems;
    QList<QLayoutItem *> newList;

    for (int idx=0; layout->itemAt(idx); ++idx) {
        QLayoutItem *item = layout->itemAt(idx);
        if (item->widget())
            objectToItem[item->widget()] = item;
        else if (item->layout())
            objectToItem[item->layout()] = item;
        else if (item->spacerItem())
            spacerItems.append(item);
        newList.append(item);
    }

    if (qobject_cast<QGridLayout *>(layout)) {
        newList.clear();
        QList<QObject *> childrenList = layout->parentWidget()->children();
        foreach (QObject *o, childrenList) {
            if (objectToItem.contains(o))
                newList.append(objectToItem[o]);
        }
        newList += spacerItems;
    }

    foreach (QLayoutItem *item, newList) {
        DomLayoutItem *ui_item = createDom(item, lay, ui_parentWidget);
        if (ui_item)
            ui_items.append(ui_item);
    }

    lay->setElementItem(ui_items);

    return lay;
}