/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
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 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
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 ************************************************************************/

#include <svpm.h>

#define _SV_SALSHL_CXX
#include <saldata.hxx>
#include <tools/debug.hxx>

// =======================================================================

SalShlData aSalShlData;

HMODULE ImplGetModule(void);
static HMODULE mhMod = ImplGetModule();

// =======================================================================

APIRET APIENTRY DosQueryModFromEIP (HMODULE *phMod, ULONG *pObjNum, 
          ULONG BuffLen, PCHAR pBuff, ULONG *pOffset, ULONG Address); 

HMODULE ImplGetModule(void)
{
	HMODULE	hMod;
	ULONG	ObjNum;
	CHAR	Buff[2*_MAX_PATH];
	ULONG	Offset;
	APIRET	rc;

	// get module handle (and name)
	rc = DosQueryModFromEIP( &hMod, &ObjNum, sizeof( Buff), Buff, &Offset, (ULONG)ImplGetModule);
	if (rc)
		return NULL;
	// return module handle
	aSalShlData.mhMod = hMod;
	return hMod;
}

// =======================================================================

HPOINTER ImplLoadSalCursor( int nId )
{
	DBG_ASSERT( aSalShlData.mhMod, "no DLL instance handle" );

	HPOINTER hPointer = WinLoadPointer( HWND_DESKTOP, aSalShlData.mhMod, nId );

	DBG_ASSERT( hPointer, "pointer not found in sal resource" );
#if OSL_DEBUG_LEVEL>0
	if (!hPointer)
		debug_printf( "ImplLoadSalCursor: pointer %d not found in sal resource\n", nId);
#endif
	return hPointer;
}

// -----------------------------------------------------------------------

BOOL ImplLoadSalIcon( int nId, HPOINTER& rIcon)
{
	DBG_ASSERT( aSalShlData.mhMod, "no DLL instance handle" );

	SalData* pSalData = GetSalData();

    // check the cache first
    SalIcon *pSalIcon = pSalData->mpFirstIcon;
    while( pSalIcon )
    {
        if( pSalIcon->nId != nId )
            pSalIcon = pSalIcon->pNext;
        else
        {
            rIcon       = pSalIcon->hIcon;
            return (rIcon != 0);
        }
    }

	// Try at first to load the icons from the application exe file
	rIcon = WinLoadPointer( HWND_DESKTOP, NULL, nId );
	if ( !rIcon )
	{
		// If the application don't provide these icons, then we try
		// to load the icon from the VCL resource
		rIcon = WinLoadPointer( HWND_DESKTOP, aSalShlData.mhMod, nId );
	}

    if( rIcon )
    {
        // add to icon cache
        pSalIcon = new SalIcon();
        pSalIcon->nId = nId;
        pSalIcon->hIcon = rIcon;
        pSalIcon->pNext = pSalData->mpFirstIcon;
        pSalData->mpFirstIcon = pSalIcon;
    }

	return (rIcon != 0);
}

// =======================================================================