C++ ModelNode::isRootNode方法代码示例

void ComponentAction::emitCurrentComponentChanged(int index)
{
    if (dontEmitCurrentComponentChanged)
        return;

    ModelNode componentModelNode = m_componentView->modelNode(index);

    if (componentModelNode.isRootNode())
        emit changedToMaster();
    else
        emit currentComponentChanged(componentModelNode);
}

bool DesignDocument::loadInFileComponent(const ModelNode &componentNode)
{
    QString componentText = rewriterView()->extractText(QList<ModelNode>() << componentNode).value(componentNode);

    if (componentText.isEmpty())
        return false;

    if (!componentNode.isRootNode()) {
        //change to subcomponent model
        changeToInFileComponentModel(createComponentTextModifier(m_documentTextModifier.data(), rewriterView(), componentText, componentNode));
    }

    return true;
}

void DesignDocumentController::changeCurrentModelTo(const ModelNode &node)
{
    if (d->componentNode == node)
        return;
    if (Internal::DesignModeWidget::instance()->currentDesignDocumentController() != this)
        return;
    DesignDocumentControllerPrivate::clearCrumblePath = false;
    while (d->formEditorView->crumblePath()->dataForLastIndex().value<CrumbleBarInfo>().modelNode.isValid() &&
        !d->formEditorView->crumblePath()->dataForLastIndex().value<CrumbleBarInfo>().modelNode.isRootNode())
        d->formEditorView->crumblePath()->popElement();
    if (node.isRootNode() && d->formEditorView->crumblePath()->dataForLastIndex().isValid())
        d->formEditorView->crumblePath()->popElement();
    changeToSubComponent(node);
    DesignDocumentControllerPrivate::clearCrumblePath = true;
}

NavigatorTreeModel::ItemRow NavigatorTreeModel::createItemRow(const ModelNode &node)
{
    Q_ASSERT(node.isValid());

    uint hash = node.internalId();

    const bool dropEnabled = node.metaInfo().isValid();

    QStandardItem *idItem = new QStandardItem;
    idItem->setDragEnabled(true);
    idItem->setDropEnabled(dropEnabled);
    idItem->setEditable(true);
    idItem->setData(hash, NavigatorRole);
    if (node.metaInfo().isValid())
        idItem->setToolTip(node.type());
    else
        idItem->setToolTip(msgUnknownItem(node.type()));
#    ifdef _LOCK_ITEMS_
    QStandardItem *lockItem = new QStandardItem;
    lockItem->setDragEnabled(true);
    lockItem->setDropEnabled(dropEnabled);
    lockItem->setEditable(false);
    lockItem->setCheckable(true);
    lockItem->setData(hash, NavigatorRole);
#    endif

    QStandardItem *visibilityItem = new QStandardItem;
    visibilityItem->setDropEnabled(dropEnabled);
    visibilityItem->setCheckable(true);
    visibilityItem->setEditable(false);
    visibilityItem->setData(hash, NavigatorRole);
    if (node.isRootNode())
        visibilityItem->setCheckable(false);

    QMap<QString, QStandardItem *> propertyItems;
    foreach (const QString &propertyName, visibleProperties(node)) {
        QStandardItem *propertyItem = new QStandardItem;
        propertyItem->setSelectable(false);
        propertyItem->setDragEnabled(false);
        propertyItem->setDropEnabled(dropEnabled);
        propertyItem->setEditable(false);
        propertyItem->setData(propertyName, Qt::DisplayRole);
        propertyItems.insert(propertyName, propertyItem);
        idItem->appendRow(propertyItem);
    }

NavigatorTreeModel::ItemRow NavigatorTreeModel::createItemRow(const ModelNode &node)
{
    Q_ASSERT(node.isValid());

    uint hash = qHash(node);

    const bool dropEnabled = node.metaInfo().isValid();

    QStandardItem *idItem = new QStandardItem;
    idItem->setDragEnabled(true);
    idItem->setDropEnabled(dropEnabled);
    idItem->setEditable(true);
    idItem->setData(hash, Qt::UserRole);

    #ifdef _LOCK_ITEMS_
    QStandardItem *lockItem = new QStandardItem;
    lockItem->setDragEnabled(true);
    lockItem->setDropEnabled(dropEnabled);
    lockItem->setEditable(false);
    lockItem->setCheckable(true);
    lockItem->setData(hash, Qt::UserRole);
    #endif

    QStandardItem *visibilityItem = new QStandardItem;
    visibilityItem->setDropEnabled(dropEnabled);
    visibilityItem->setCheckable(true);
    visibilityItem->setEditable(false);
    visibilityItem->setData(hash, Qt::UserRole);
    if (node.isRootNode()) {
        visibilityItem->setCheckable(false);
    }

    #ifdef _LOCK_ITEMS_
    return ItemRow(idItem, lockItem, visibilityItem);
    #else
    return ItemRow(idItem, visibilityItem);
    #endif
}

void NodeInstanceView::auxiliaryDataChanged(const ModelNode &node, const PropertyName &name, const QVariant &data)
{
    if ((node.isRootNode() && (name == "width" || name == "height")) || name.endsWith(PropertyName("@NodeInstance"))) {
        if (hasInstanceForModelNode(node)) {
            NodeInstance instance = instanceForModelNode(node);
            QVariant value = data;
            if (value.isValid()) {
                PropertyValueContainer container(instance.instanceId(), name, value, TypeName());
                ChangeAuxiliaryCommand changeAuxiliaryCommand(QVector<PropertyValueContainer>() << container);
                nodeInstanceServer()->changeAuxiliaryValues(changeAuxiliaryCommand);
            } else {
                if (node.hasVariantProperty(name)) {
                    PropertyValueContainer container(instance.instanceId(), name, node.variantProperty(name).value(), TypeName());
                    ChangeValuesCommand changeValueCommand(QVector<PropertyValueContainer>() << container);
                    nodeInstanceServer()->changePropertyValues(changeValueCommand);
                } else if (node.hasBindingProperty(name)) {
                    PropertyBindingContainer container(instance.instanceId(), name, node.bindingProperty(name).expression(), TypeName());
                    ChangeBindingsCommand changeValueCommand(QVector<PropertyBindingContainer>() << container);
                    nodeInstanceServer()->changePropertyBindings(changeValueCommand);
                }
            }
        }
    }
}

void PropertyEditorContextObject::changeTypeName(const QString &typeName)
{

    if (!m_model || !m_model->rewriterView())
        return;

    /* Ideally we should not missuse the rewriterView
     * If we add more code here we have to forward the property editor view */
    RewriterView *rewriterView = m_model->rewriterView();

    if (rewriterView->selectedModelNodes().isEmpty())
        return;

    ModelNode selectedNode = rewriterView->selectedModelNodes().constFirst();

    try {
        RewriterTransaction transaction =
                rewriterView->beginRewriterTransaction(QByteArrayLiteral("PropertyEditorContextObject:changeTypeName"));

        NodeMetaInfo metaInfo = m_model->metaInfo(typeName.toLatin1());
        if (!metaInfo.isValid()) {
            Core::AsynchronousMessageBox::warning(tr("Invalid Type"),  tr("%1 is an invalid type.").arg(typeName));
            return;
        }
        if (selectedNode.isRootNode())
             rewriterView->changeRootNodeType(metaInfo.typeName(), metaInfo.majorVersion(), metaInfo.minorVersion());
        else
            selectedNode.changeType(metaInfo.typeName(), metaInfo.majorVersion(), metaInfo.minorVersion());

        transaction.commit();
    }  catch (RewritingException &exception) { //better safe than sorry! There always might be cases where we fail
        exception.showException();
    }


}

void DesignDocumentController::changeToSubComponent(const ModelNode &componentNode)
{
    Q_ASSERT(d->masterModel);
    QWeakPointer<Model> oldModel = d->model;
    Q_ASSERT(oldModel.data());

    if (d->model == d->subComponentModel) {
        changeToMasterModel();
    }

    QString componentText = d->rewriterView->extractText(QList<ModelNode>() << componentNode).value(componentNode);

    if (componentText.isEmpty())
        return;

    bool explicitComponent = false;
    if (componentText.contains("Component")) { //explicit component
        explicitComponent = true;
    }

    d->componentNode = componentNode;
    if (!componentNode.isRootNode()) {
        Q_ASSERT(d->model == d->masterModel);
        Q_ASSERT(componentNode.isValid());
        //change to subcomponent model
        ModelNode rootModelNode = componentNode.view()->rootModelNode();
        Q_ASSERT(rootModelNode.isValid());
        if (d->componentTextModifier)
            delete d->componentTextModifier;


        int componentStartOffset;
        int componentEndOffset;

        int rootStartOffset = d->rewriterView->nodeOffset(rootModelNode);

        if (explicitComponent) { //the component is explciit we have to find the first definition inside
            componentStartOffset = d->rewriterView->firstDefinitionInsideOffset(componentNode);
            componentEndOffset = componentStartOffset + d->rewriterView->firstDefinitionInsideLength(componentNode);
        } else { //the component is implicit
            componentStartOffset = d->rewriterView->nodeOffset(componentNode);
            componentEndOffset = componentStartOffset + d->rewriterView->nodeLength(componentNode);
        }

        d->componentTextModifier = new ComponentTextModifier (d->textModifier, componentStartOffset, componentEndOffset, rootStartOffset);


        d->model->detachView(d->rewriterView.data());

        d->rewriterView->setTextModifier(d->componentTextModifier);

        d->subComponentModel->attachView(d->rewriterView.data());

        Q_ASSERT(d->rewriterView->rootModelNode().isValid());

        d->model = d->subComponentModel;
    }

    Q_ASSERT(d->masterModel);
    Q_ASSERT(d->model);

    loadCurrentModel();
    d->componentView->setComponentNode(componentNode);
}