CPageNavigationControllerComp.h

// SPDX-License-Identifier: LGPL-2.1-or-later OR GPL-2.0-or-later OR GPL-3.0-or-later OR LicenseRef-ImtCore-Commercial
#pragma once
 
 
// ACF includes
#include <icomp/CComponentBase.h>
#include <imod/TSingleModelObserverBase.h>
#include <imod/CMultiModelDispatcherBase.h>
#include <iprm/ISelectionParam.h>
 
// ImtCore includes
#include <imtgui/IPageNavigationController.h>
 
 
namespace imtgui
{
 
 
class CPageNavigationControllerComp:
                     public icomp::CComponentBase,
                     protected imod::TSingleModelObserverBase<iprm::ISelectionParam>,
                     virtual public IPageNavigationController
                     
{
public:
       typedef icomp::CComponentBase BaseClass;
       typedef imod::TSingleModelObserverBase<iprm::ISelectionParam> BaseClass2;
 
       I_BEGIN_COMPONENT(CPageNavigationControllerComp);
              I_REGISTER_INTERFACE(IPageNavigationController);
              I_ASSIGN(m_pageSelectionCompPtr, "PageModel", "Page selection model", true, "PageModel");
              I_ASSIGN_TO(m_pageSelectionModelCompPtr, m_pageSelectionCompPtr, true);
       I_END_COMPONENT;
       
       CPageNavigationControllerComp();
 
       // reimplemented (IPageNavigationController)
       virtual bool IsNextPageAvailable() const override;
       virtual bool IsPreviousPageAvailable() const override;
       virtual void GoForward() override;
       virtual void GoBack() override;
 
protected:
       virtual void AddPageStep(const QByteArray& pageId);
       void OnPageSelectionChanged();
       void GoToPage(const QByteArray& pageId);
       void CreatePageList(const iprm::ISelectionParam& selection, const QByteArray& parentId);
 
       // reimplemented (imod::CSingleModelObserverBase)
       virtual void OnUpdate(const istd::IChangeable::ChangeSet& changeSet);
 
       class PageSubselectionObserver: public imod::CMultiModelDispatcherBase
       {
       public:
              explicit PageSubselectionObserver(CPageNavigationControllerComp& parent);
 
              // reimplemented (imod::CMultiModelDispatcherBase)
              virtual void OnModelChanged(int modelId, const istd::IChangeable::ChangeSet& changeSet) override;
 
       private:
              CPageNavigationControllerComp& m_parent;
       };
 
       // reimplemented (icomp::CComponentBase)
       virtual void OnComponentCreated() override;
       virtual void OnComponentDestroyed() override;
 
private:
       QByteArrayList m_visitedPages;
       QByteArrayList m_pages;
       qsizetype m_currentPageIndex;
 
       I_REF(iprm::ISelectionParam, m_pageSelectionCompPtr);
       I_REF(imod::IModel, m_pageSelectionModelCompPtr);
 
 
       PageSubselectionObserver m_pageSubselectionObserver;
       int m_subselectionModelIndex;
 
       bool m_isUpdateBlocked;
};
 
 
} // namespace imtgui