/*
 * $Id$
 */

/*
   Harbour Project source code

   Harbour Mouse subsystem main file

   Copyright 1999  Victor Szel <info@szelvesz.hu>
   www - http://www.harbour-project.org

   API interface proposal mainly by Jose Lalin <dezac@corevia.com>.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version, with one exception:

   The exception is that if you link the Harbour Runtime Library (HRL)
   and/or the Harbour Virtual Machine (HVM) with other files to produce
   an executable, this does not by itself cause the resulting executable
   to be covered by the GNU General Public License. Your use of that
   executable is in no way restricted on account of linking the HRL
   and/or HVM code into it.

   This program 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 General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA (or visit
   their web site at http://www.gnu.org/).

*/

#include "extend.h"
#include "mouseapi.h"
#include "gtapi.h"

/* TODO: This level should make sure that if there's no mouse present 
         the functions don't call the low level function, but return some
         default values. */

static BOOL   s_bPresent;
static BOOL   s_bVisible;
static USHORT s_uiDoubleClickSpeed; /* In milliseconds */
static int    s_iLeftButton;
static int    s_iRightButton;

/* C callable interface */

void hb_mouseInit( void )
{
   hb_mouse_Init();

   s_bPresent = hb_mouse_IsPresent();

   hb_mouseSetCursor( FALSE );

   s_uiDoubleClickSpeed = 168;
   s_iLeftButton = 1;                      /* TOFIX: */
   s_iRightButton = hb_mouseCountButton(); /* TOFIX: */
}

void hb_mouseExit( void )
{
   hb_mouse_Exit();
}

BOOL hb_mouseIsPresent( void )
{
   return hb_mouse_IsPresent();
}

BOOL hb_mouseGetCursor( void )
{
   return s_bVisible;
}

void hb_mouseSetCursor( BOOL bVisible )
{
   if( bVisible )
   {
      hb_mouse_Show();
      s_bVisible = TRUE;
   }
   else
   {
      hb_mouse_Hide();
      s_bVisible = FALSE;
   }
}

int hb_mouseCol( void )
{
   return hb_mouse_Col();
}

int hb_mouseRow( void )
{
   return hb_mouse_Row();
}

void hb_mouseSetPos( int iRow, int iCol )
{
   hb_mouse_SetPos( iRow, iCol );
}

BOOL hb_mouseIsButtonPressed( int iButton )
{
   return hb_mouse_IsButtonPressed( iButton );
}

int hb_mouseCountButton( void )
{
   return hb_mouse_CountButton();
}

void hb_mouseSetBounds( int iTop, int iLeft, int iBottom, int iRight )
{
   hb_mouse_SetBounds( iTop, iLeft, iBottom, iRight );
}

void hb_mouseGetBounds( int * piTop, int * piLeft, int * piBottom, int * piRight )
{
   hb_mouse_GetBounds( piTop, piLeft, piBottom, piRight );
}

/* HARBOUR callable interface */

HARBOUR MPRESENT( void )
{
   hb_retl( hb_mouseIsPresent() );
}

HARBOUR MHIDE( void )
{
   hb_mouseSetCursor( FALSE );
}

HARBOUR MSHOW( void )
{
   hb_mouseSetCursor( TRUE );
}

HARBOUR MSETCURSOR( void )
{
   hb_retl( hb_mouseGetCursor() );

   if( ISLOG( 1 ) )
      hb_mouseSetCursor( hb_parl( 1 ) );
}

HARBOUR MROW( void )
{
   hb_retni( hb_mouseRow() );   
}

HARBOUR MCOL( void )
{
   hb_retni( hb_mouseCol() );   
}

HARBOUR MSETPOS( void )
{
   if( ISNUM( 1 ) && ISNUM( 2 ) )
      hb_mouseSetPos( hb_parni( 1 ), hb_parni( 2 ) );
}

HARBOUR MRIGHTDOWN( void )
{
   hb_retl( hb_mouseIsButtonPressed( s_iRightButton ) );
}

HARBOUR MLEFTDOWN( void )
{
   hb_retl( hb_mouseIsButtonPressed( s_iLeftButton ) );
}

HARBOUR MDBLCLK( void )
{
   hb_retni( s_uiDoubleClickSpeed );

   if( ISNUM( 1 ) )
   {
      int uiDoubleClickSpeed = hb_parni( 1 );

      if( uiDoubleClickSpeed > 0 )
         s_uiDoubleClickSpeed = uiDoubleClickSpeed;
   }
}

HARBOUR MSAVESTATE( void )
{
   int iTop, iLeft, iBottom, iRight;

   USHORT uiPos;
   USHORT uiLen = sizeof( int ) * 2 + 
                  sizeof( BOOL ) +
                  sizeof( int ) * 4;

   BYTE * pBuffer = ( BYTE * ) hb_xgrab( uiLen );
  
   hb_mouseGetBounds( &iTop, &iLeft, &iBottom, &iRight );

   uiPos = 0;
   *(pBuffer + uiPos) = hb_mouseRow();
   uiPos += sizeof( int );
   *(pBuffer + uiPos) = hb_mouseCol();
   uiPos += sizeof( int );
   *(pBuffer + uiPos) = s_bVisible;
   uiPos += sizeof( BOOL );
   *(pBuffer + uiPos) = iTop;
   uiPos += sizeof( int );
   *(pBuffer + uiPos) = iLeft;
   uiPos += sizeof( int );
   *(pBuffer + uiPos) = iBottom;
   uiPos += sizeof( int );
   *(pBuffer + uiPos) = iRight;

   hb_retclen( pBuffer, uiLen );

   hb_xfree( pBuffer );
}

HARBOUR MRESTSTATE( void )
{
   USHORT uiLen = sizeof( int ) * 2 + 
                  sizeof( BOOL ) +
                  sizeof( int ) * 4;

   if( ISCHAR( 1 ) && hb_parclen( 1 ) == uiLen )
   {
      int iRow, iCol;
      int iTop, iLeft, iBottom, iRight;
      BOOL bVisible;

      USHORT uiPos;

      BYTE * pBuffer = ( BYTE * ) hb_parc( 1 );

      uiPos = 0;
      iRow = *(pBuffer + uiPos);
      uiPos += sizeof( int );
      iCol = *(pBuffer + uiPos);
      uiPos += sizeof( int );
      bVisible = *(pBuffer + uiPos);
      uiPos += sizeof( BOOL );
      iTop = *(pBuffer + uiPos);
      uiPos += sizeof( int );
      iLeft = *(pBuffer + uiPos);
      uiPos += sizeof( int );
      iBottom = *(pBuffer + uiPos);
      uiPos += sizeof( int );
      iRight = *(pBuffer + uiPos);

      hb_mouseSetPos( iRow, iCol );
      hb_mouseSetBounds( iTop, iLeft, iBottom, iRight );
      hb_mouseSetCursor( bVisible );
   }
}

HARBOUR MSETBOUNDS( void )
{
   int iTop    = ISNUM( 1 ) ? hb_parni( 1 ) : 0;
   int iLeft   = ISNUM( 2 ) ? hb_parni( 2 ) : 0; 
   int iBottom = ISNUM( 3 ) ? hb_parni( 3 ) : hb_gtMaxRow();
   int iRight  = ISNUM( 4 ) ? hb_parni( 4 ) : hb_gtMaxCol();

   hb_mouseSetBounds( iTop, iLeft, iBottom, iRight );
}