abstractformbuilder.cpp

QT 开发环境里面一个很重要的文件

        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 {
        children = widget->children();
    }

    if (qobject_cast<QMainWindow *>(widget) && widget->parent() && widget->parent()->metaObject()->className() == QLatin1String("qdesigner_internal::QDesignerPromotedWidget")) {
        // add actions of parent promoted widget
        QObjectList list = widget->parent()->children();
        QListIterator<QObject *> it(list);
        while (it.hasNext()) {
            QObject *obj = it.next();
            if (qobject_cast<QAction *>(obj) || qobject_cast<QActionGroup *>(obj))
                children.append(obj);
        }
    }

    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;


    for (int idx=0; layout->itemAt(idx); ++idx) {
        QLayoutItem *item = layout->itemAt(idx);

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

    lay->setElementItem(ui_items);

    return lay;
}

/*!
    \internal
*/
DomLayoutItem *QAbstractFormBuilder::createDom(QLayoutItem *item, DomLayout *ui_layout, DomWidget *ui_parentWidget)
{
    DomLayoutItem *ui_item = new DomLayoutItem();

    if (item->widget())  {
        ui_item->setElementWidget(createDom(item->widget(), ui_parentWidget));
        m_laidout.insert(item->widget(), true);
    } else if (item->layout()) {
        ui_item->setElementLayout(createDom(item->layout(), ui_layout, ui_parentWidget));
    } else if (item->spacerItem()) {
        ui_item->setElementSpacer(createDom(item->spacerItem(), ui_layout, ui_parentWidget));
    }

    return ui_item;
}

/*!
    \internal
*/
DomSpacer *QAbstractFormBuilder::createDom(QSpacerItem *spacer, DomLayout *ui_layout, DomWidget *ui_parentWidget)
{
    Q_UNUSED(ui_layout);
    Q_UNUSED(ui_parentWidget);

    DomSpacer *ui_spacer = new DomSpacer();
    QList<DomProperty*> properties;

    DomProperty *prop = 0;

    // sizeHint property
    prop = new DomProperty();
    prop->setAttributeName(QLatin1String("sizeHint"));
    prop->setElementSize(new DomSize());
    prop->elementSize()->setElementWidth(spacer->sizeHint().width());
    prop->elementSize()->setElementHeight(spacer->sizeHint().height());
    properties.append(prop);

    // orientation property
    prop = new DomProperty(); // ### we don't implemented the case where expandingDirections() is both Vertical and Horizontal
    prop->setAttributeName(QLatin1String("orientation"));
    prop->setElementEnum((spacer->expandingDirections() & Qt::Horizontal) ? QLatin1String("Qt::Horizontal") : QLatin1String("Qt::Vertical"));
    properties.append(prop);

    ui_spacer->setElementProperty(properties);
    return ui_spacer;
}

/*!
    \internal
*/
DomProperty *QAbstractFormBuilder::createProperty(QObject *obj, const QString &pname, const QVariant &v)
{
    if (!checkProperty(obj, pname)) {
        return 0;
    }

    DomProperty *dom_prop = new DomProperty();

    const QMetaObject *meta = obj->metaObject();
    int pindex = meta->indexOfProperty(pname.toLatin1());
    if (pindex != -1) {
        QMetaProperty meta_property = meta->property(pindex);
        if (!meta_property.hasStdCppSet())
            dom_prop->setAttributeStdset(0);
    }

    switch (v.type()) {
        case QVariant::String: {
            DomString *str = new DomString();
            str->setText(v.toString());

            if (pname == QLatin1String("objectName"))
                str->setAttributeNotr(QLatin1String("true"));

            dom_prop->setElementString(str);
        } break;

        case QVariant::ByteArray: {
            dom_prop->setElementCstring(QString::fromUtf8(v.toByteArray()));
        } break;

        case QVariant::Int: {
            dom_prop->setElementNumber(v.toInt());
        } break;

        case QVariant::UInt: {
            dom_prop->setElementNumber(v.toUInt());
        } break;

        case QVariant::LongLong: {
            dom_prop->setElementLongLong(v.toLongLong());
        } break;

        case QVariant::ULongLong: {
            dom_prop->setElementLongLong(v.toULongLong());
        } break;

        case QVariant::Double: {
            dom_prop->setElementDouble(v.toDouble());
        } break;

        case QVariant::Bool: {
            dom_prop->setElementBool(v.toBool() ? QLatin1String("true") : QLatin1String("false"));
        } break;

        case QVariant::Char: {
            DomChar *ch = new DomChar();
            QChar character = v.toChar();
            ch->setElementUnicode(character.unicode());
            dom_prop->setElementChar(ch);
        } break;

        case QVariant::Point: {
            DomPoint *pt = new DomPoint();
            QPoint point = v.toPoint();
            pt->setElementX(point.x());
            pt->setElementY(point.y());
            dom_prop->setElementPoint(pt);
        } break;

        case QVariant::PointF: {
            DomPointF *ptf = new DomPointF();
            QPointF pointf = v.toPointF();
            ptf->setElementX(pointf.x());
            ptf->setElementY(pointf.y());
            dom_prop->setElementPointF(ptf);
        } break;

        case QVariant::Color: {
            DomColor *clr = new DomColor();
            QColor color = qvariant_cast<QColor>(v);
            clr->setElementRed(color.red());
            clr->setElementGreen(color.green());
            clr->setElementBlue(color.blue());
            dom_prop->setElementColor(clr);
        } break;

        case QVariant::Size: {
            DomSize *sz = new DomSize();
            QSize size = v.toSize();
            sz->setElementWidth(size.width());
            sz->setElementHeight(size.height());
            dom_prop->setElementSize(sz);
        } break;

        case QVariant::SizeF: {
            DomSizeF *szf = new DomSizeF();
            QSizeF sizef = v.toSizeF();
            szf->setElementWidth(sizef.width());
            szf->setElementHeight(sizef.height());
            dom_prop->setElementSizeF(szf);
        } break;

        case QVariant::Rect: {
            DomRect *rc = new DomRect();
            QRect rect = v.toRect();
            rc->setElementX(rect.x());
            rc->setElementY(rect.y());
            rc->setElementWidth(rect.width());
            rc->setElementHeight(rect.height());
            dom_prop->setElementRect(rc);
        } break;

        case QVariant::RectF: {
            DomRectF *rcf = new DomRectF();
            QRectF rectf = v.toRectF();
            rcf->setElementX(rectf.x());
            rcf->setElementY(rectf.y());
            rcf->setElementWidth(rectf.width());
            rcf->setElementHeight(rectf.height());
            dom_prop->setElementRectF(rcf);
        } break;

        case QVariant::Font: {
            DomFont *fnt = new DomFont();
            QFont font = qvariant_cast<QFont>(v);
            uint mask = font.resolve();
            if (mask & QFontPrivate::Weight) {
                fnt->setElementBold(font.bold());
                fnt->setElementWeight(font.weight());
            }
            if (mask & QFontPrivate::Family)
                fnt->setElementFamily(font.family());
            if (mask & QFontPrivate::Style)
                fnt->setElementItalic(font.italic());
            if (mask & QFontPrivate::Size)
                fnt->setElementPointSize(font.pointSize());
            if (mask & QFontPrivate::StrikeOut)
                fnt->setElementStrikeOut(font.strikeOut());
            if (mask & QFontPrivate::Underline)
                fnt->setElementUnderline(font.underline());
            if (mask & QFontPrivate::Kerning)
                fnt->setElementKerning(font.kerning());
            if (mask & QFontPrivate::StyleStrategy)
                fnt->setElementAntialiasing(font.styleStrategy() == QFont::PreferDefault);
            dom_prop->setElementFont(fnt);
        } break;

        case QVariant::Cursor: {
            dom_prop->setElementCursor(qvariant_cast<QCursor>(v).shape());
        } break;

        case QVariant::KeySequence: {
            DomString *s = new DomString();
            s->setText(qvariant_cast<QKeySequence>(v).toString(QKeySequence::PortableText));
            dom_prop->setElementString(s);
        } break;

        case QVariant::Palette: {
            DomPalette *dom = new DomPalette();
            QPalette palette = qvariant_cast<QPalette>(v);

            palette.setCurrentColorGroup(QPalette::Active);
            dom->setElementActive(saveColorGroup(palette));

            palette.setCurrentColorGroup(QPalette::Inactive);
            dom->setElementInactive(saveColorGroup(palette));

            palette.setCurrentColorGroup(QPalette::Disabled);
            dom->setElementDisabled(saveColorGroup(palette));

            dom_prop->setElementPalette(dom);
        } break;

        case QVariant::SizePolicy: {
            DomSizePolicy *dom = new DomSizePolicy();
            QSizePolicy sizePolicy = qvariant_cast<QSizePolicy>(v);

            dom->setElementHorStretch(sizePolicy.horizontalStretch());
            dom->setElementVerStretch(sizePolicy.verticalStretch());

            dom->setElementHSizeType(sizePolicy.horizontalPolicy());
            dom->setElementVSizeType(sizePolicy.verticalPolicy());

            dom_prop->setElementSizePolicy(dom);
        } break;