//----------------------------------------------------------------------------
//  EgalTech 2017-2017
//----------------------------------------------------------------------------
// File : LUA_Image.cpp       Data : 05.07.17        Versione : 1.8g1
// Contenuto : Funzioni sulle immagini per LUA.
//
//
//
// Modifiche : 05.07.17 DS Creazione modulo.
//
//
//----------------------------------------------------------------------------

//--------------------------- Include ----------------------------------------
#include "stdafx.h"
#include "LUA.h"
#include "/EgtDev/Include/EXeExecutor.h"
#include "/EgtDev/Include/EGkLuaAux.h"
#include "/EgtDev/Include/EGnStringUtils.h"

using namespace std ;

//-------------------------------------------------------------------------------
static int
LuaGetImagePixels( lua_State* L)
{
  // 1 parametro : sFile
   string sFile ;
   LuaCheckParam( L, 1, sFile)
   LuaClearStack( L) ;
  // recupero la dimensione in pixels dell'immagine
   int nPixelX, nPixelY ;
   bool bOk = ExeGetImagePixels( sFile, nPixelX, nPixelY) ; 
  // restituisco il risultato
   if ( bOk) {
      LuaSetParam( L, nPixelX) ;
      LuaSetParam( L, nPixelY) ;
      return 2 ;
   }
   else {
      LuaSetParam( L) ;
      return 1 ;
   }
}

//-------------------------------------------------------------------------------
bool
LuaInstallImage( LuaMgr& luaMgr)
{
   bool bOk = ( &luaMgr != nullptr) ;
   bOk = bOk && luaMgr.RegisterFunction( "EgtGetImagePixels", LuaGetImagePixels) ;
   return bOk ;
}