DtPage.h

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/******************************************************************************
** Copyright (c) 2020 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#pragma once
#include <vrvCoreQt/vrvCoreQt.h>
#include <QtWidgets/QWidget>
#include <QtGui/QIcon>

namespace makVrv
{
   class DtDe;

   class DT_DLL_VRVCOREQT DtPage : public QWidget
   {

   public:
      enum PageAction
      {
         None = 0x0000,
         Switching = 0x0001,
         Closing = 0x0010
      };
   public:
      DtPage(DtDe& de,QWidget* parent = 0, Qt::WindowFlags f = 0);

      virtual ~DtPage();

      virtual QIcon icon() = 0;

      virtual QString title() = 0;

      virtual const std::string& pageClassName() const = 0;
   
      virtual PageAction pageAction();

      virtual void setPageAction(PageAction action);

      virtual void setActionFlag(int flag);

      virtual int actionFlag();

      virtual void setParentDialog(QWidget* paraentDialog);

      virtual QWidget* parentDialog();

      virtual void activate() = 0;

      virtual void deactivate() = 0;

      virtual bool shouldAskBeforeAction(PageAction action);

      virtual void askBeforeAction();

      virtual void executeAfterAsk(bool revert);

      virtual void resumeLastAction();

      virtual void onCloseEvent();

      virtual void onSwitchEvent();

   protected:
      DtDe& myDe;
      QWidget* myParentDialog;
      PageAction myCurrentPageAction;
      //the flag that will ask before executing the action, may revert or continue depends on the user input
      int myActionFlag;
   };

   class DT_DLL_VRVCOREQT DtPageCreator
   {
   public:
      DtPageCreator(DtDe& de);

      virtual ~DtPageCreator();

      virtual std::string pageClassName() const = 0;
      
      virtual DtPage* create(QWidget* parent = 0, Qt::WindowFlags f = 0) = 0;

   protected:
      DtDe& myDe;
   };


   template <typename PageClass>
   class DtPageCreatorTemplate : public DtPageCreator
   {
   public:
      
      DtPageCreatorTemplate(DtDe& de) 
      : DtPageCreator(de)
      {
      }

      virtual ~DtPageCreatorTemplate()
      {
      }

      virtual std::string pageClassName() const 
      {          
         return PageClass::thePageClassName(); 
      }

      virtual DtPage* create(QWidget* parent = 0, Qt::WindowFlags f = 0)
      {
         return new PageClass(myDe, parent, f);
      }
   };
}