Method getOrCreatePage

Gui/KnobGuiContainerHelper.cpp:216–283

}

KnobPageGuiPtr
KnobGuiContainerHelper::getOrCreatePage(const KnobPagePtr& page)
{

    if (!page || page->getIsToolBar()) {
        return KnobPageGuiPtr();
    }
    if ( !isPagingEnabled() && (_imp->pages.size() > 0) ) {
        return _imp->pages.begin()->second;
    }

    // If the page is already created, return it
    assert(page);
    PagesMap::iterator found = _imp->pages.find(page);
    if ( found != _imp->pages.end() ) {
        return found->second;
    }


    QWidget* newTab;
    QWidget* layoutContainer;

    // The widget parent of the page
    QWidget* pagesContainer = getPagesContainer();
    assert(pagesContainer);

    // Check If the page main widget should be a scrollarea
    if ( useScrollAreaForTabs() ) {
        QScrollArea* sa = new QScrollArea(pagesContainer);
        layoutContainer = new QWidget(sa);
        layoutContainer->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
        sa->setWidgetResizable(true);
        sa->setWidget(layoutContainer);
        newTab = sa;
    } else {
        // Otherwise let the derived class create the main widget
        newTab = createPageMainWidget(pagesContainer);
        layoutContainer = newTab;
    }

    // The container layout is always a grid layout
    QGridLayout *tabLayout = new QGridLayout(layoutContainer);
    tabLayout->setObjectName( QString::fromUtf8("formLayout") );
    layoutContainer->setLayout(tabLayout);
    tabLayout->setColumnStretch(1, 1);
    tabLayout->setSpacing( TO_DPIY(NATRON_FORM_LAYOUT_LINES_SPACING) );

    // Create the page gui
    KnobPageGuiPtr pageGui = std::make_shared<KnobPageGui>();
    pageGui->currentRow = 0;
    pageGui->tab = newTab;
    pageGui->pageKnob = page;
    pageGui->groupAsTab = 0;
    pageGui->gridLayout = tabLayout;

    KnobSignalSlotHandlerPtr handler = page->getSignalSlotHandler();
    QObject::connect( handler.get(), SIGNAL(labelChanged()), _imp->signals.get(), SLOT(onPageLabelChangedInternally()) );
    QObject::connect( handler.get(), SIGNAL(secretChanged()), _imp->signals.get(), SLOT(onPageSecretnessChanged()) );