sub_window_creator.h

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/*
 * This file depends on Qt which is licensed under LGPLv3.
 * See ADTF_DIR/3rdparty/qt5 and doc/license for detailed information.
 */
#pragma once
#include <adtfjavascriptfiltersdk/qtquick_filter.h>
#include <adtfbase/error_handling_intf.h>
#include <adtfui/qtxsystem_intf.h>
#include <adtfui/qt_shared_intf.h>
#include <adtfui/xsystem_qtwindow.h>
#include <adtfstreaming3/graph_element_editors.h>
 
#include <QGuiApplication>
#include <QQmlEngine>
#include <QQmlContext>
#include <QQuickWidget>
#include <QPointer>
#include <QQuickView>
 
 
#undef GetObjectA
#undef CreateWindow
#undef GetObject
 
// @cond NO_DOC_INTERNAL
class cQtSubWindow : public adtf::ui::cQtWindow
{
public:
    cQtSubWindow(QString strName)
    {
        m_strTitle = strName.toStdString().c_str();
    }
 
    ~cQtSubWindow() override
    {
    }
 
    QWidget* CreateView() override
    {
        m_pView = new QQuickView();
        m_pView->setSource(QUrl::fromLocalFile("empty.qml"));
        m_pView->setResizeMode(QQuickView::SizeRootObjectToView);
        QWidget* pContainer = QWidget::createWindowContainer(m_pView);
        pContainer->setObjectName(m_strTitle->GetPtr());
        return pContainer;
    }
 
    void ReleaseView() override
    {
        if (m_pView)
        {
            m_pView->close();
            delete m_pView;
        }
    }
 
    adtf::base::property_variable<adtf::util::cString>& GetTitle()
    {
        return m_strTitle;
    }
 
    QQuickView* m_pView = nullptr;
};
 
class cQtSubWindowCreator : public QObject
{
    Q_OBJECT
public:
    cQtSubWindowCreator()
    {
    }
 
    ~cQtSubWindowCreator() noexcept override
    {
        if (IS_OK(_runtime->GetObject(m_pXSystem)))
        {
            for (auto& pContainer : m_lstContainers)
            {
                m_pXSystem->DestroyWindow(*pContainer);
            }
        }
    }
 
    Q_INVOKABLE QQuickItem* CreateWindow(QString strName)
    {
        if (IS_OK(_runtime->GetObject(m_pXSystem)))
        {
            auto pSubWindow = std::make_unique<cQtSubWindow>(strName);
            m_pXSystem->CreateWindow(*pSubWindow);
 
            auto pView = pSubWindow->m_pView;
            m_lstContainers.push_back(std::move(pSubWindow));
 
            return pView->rootObject();
        }
        return nullptr;
    }
 
private:
    std::vector<std::unique_ptr<cQtSubWindow>> m_lstContainers;
    adtf::ucom::object_ptr<adtf::ui::IQtXSystem> m_pXSystem;
};
// @endcond NO_DOC_INTERNAL