Method prepareViewWidget

kdevplatform/sublime/idealcontroller.cpp:273–299

};

std::pair<QWidget*, bool> ToolViewWidgetCache::prepareViewWidget(View& view, QWidget* parent)
{
    const auto* const document = view.document();
    Q_ASSERT(document);

    if (auto* const widget = view.widget()) {
        Q_ASSERT(m_widgets.value(document).widget() == widget);
        qCDebug(SUBLIME) << "the view already has a tool view widget" << document->documentSpecifier();
        return {widget, false};
    }

    auto& cachedWidget = m_widgets[document];

    if (auto* const widget = cachedWidget.widget()) {
        cachedWidget.addUse();
        view.setSharedWidget(widget);
        qCDebug(SUBLIME).nospace() << "reusing an existing tool view widget " << document->documentSpecifier()
                                   << ", use count: " << cachedWidget.useCount();
        return {widget, false};
    }

    auto* const widget = view.initializeWidget(parent);
    Q_ASSERT(widget);
    cachedWidget.initializeWidget(widget);
    qCDebug(SUBLIME) << "created a new tool view widget" << document->documentSpecifier();
    return {widget, true};
}

bool ToolViewWidgetCache::disuse(const View& view)
{