Dialog.h

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//     ____   ______ __
//    / __ \ / ____// /
//   / /_/ // /    / /
//  / ____// /___ / /___   PixInsight Class Library
// /_/     \____//_____/   PCL 2.7.0
// ----------------------------------------------------------------------------
// pcl/Dialog.h - Released 2024-06-18T15:48:54Z
// ----------------------------------------------------------------------------
// This file is part of the PixInsight Class Library (PCL).
// PCL is a multiplatform C++ framework for development of PixInsight modules.
//
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// ----------------------------------------------------------------------------
 
#ifndef __PCL_Dialog_h
#define __PCL_Dialog_h
 
 
#ifndef __PCL_BUILDING_PIXINSIGHT_APPLICATION
 
#include <pcl/Defs.h>
 
#include <pcl/AutoPointer.h>
#include <pcl/Control.h>
 
namespace pcl
{
 
// ----------------------------------------------------------------------------
 
namespace StdDialogCode
{
   enum value_type
   {
      Cancel  = 0,   // The dialog has been rejected (e.g., by clicking the Cancel button)
      Ok      = 1    // The dialog has been accepted (e.g., by clicking the OK button)
   };
}
 
// ----------------------------------------------------------------------------
 
class PCL_CLASS Dialog : public Control
{
public:
 
   using std_code = StdDialogCode::value_type;
 
   Dialog( Control& parent = Control::Null() );
 
   ~Dialog() override
   {
   }
 
   int Execute();
 
   void Open();
 
   void Return( int retCode );
 
   void Ok()
   {
      Return( StdDialogCode::Ok );
   }
 
   void Cancel()
   {
      Return( StdDialogCode::Cancel );
   }
 
   bool IsUserResizable() const;
 
   void EnableUserResizing( bool = true );
 
   void DisableUserResizing( bool disable = true )
   {
      EnableUserResizing( !disable );
   }
 
   static void ProcessEvents( bool excludeUserInputEvents = false );
 
   // -------------------------------------------------------------------------
   // Event handlers
   //
   // void OnExecute( Dialog& sender );
   // void OnReturn( Dialog& sender, int retVal );
 
   using execute_event_handler = void (Control::*)( Dialog& sender );
 
   using return_event_handler = void (Control::*)( Dialog& sender, int retCode );
 
   void OnExecute( execute_event_handler handler, Control& receiver );
 
   void OnReturn( return_event_handler handler, Control& receiver );
 
private:
 
   struct EventHandlers
   {
      execute_event_handler onExecute = nullptr;
      return_event_handler  onReturn  = nullptr;
 
      EventHandlers() = default;
      EventHandlers( const EventHandlers& ) = default;
      EventHandlers& operator =( const EventHandlers& ) = default;
   };
 
   AutoPointer<EventHandlers> m_handlers;
 
   friend class DialogEventDispatcher;
};
 
// ----------------------------------------------------------------------------
 
} // pcl
 
#endif   // __PCL_BUILDING_PIXINSIGHT_APPLICATION
 
#endif   // __PCL_Dialog_h
 
// ----------------------------------------------------------------------------
// EOF pcl/Dialog.h - Released 2024-06-18T15:48:54Z