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grid.h：源码内容
							/* **************************************************************************************
 *  Copyright (c) 2002 ZORAN Corporation, All Rights Reserved
 *  THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF ZORAN CORPORATION
 *
 *  File: $Workfile: Grid.h $             
 *
 * Description:
 * ============
 * Menu system choice extension widget
 * 
 * Log:
 * ====
 * $Revision: 3 $
 * Last Modified by $Author: Nirm $ at $Modtime: 23/04/02 9:06 $ 
 ****************************************************************************************
 * Updates:
 ****************************************************************************************
 * $Log: /I49/H49V/UI/Menu_sys/Grid.h $
 * 
 * 3     23/04/02 9:39 Nirm
 * - Added dependency in "Config.h".
 * 
 * 2     25/12/01 10:24 Atai
 * Code Cleaning
 * 
 * 
 **************************************************************************************** */
#include "Config.h"		// Global Configuration - do not remove!
#ifndef _GRID_H_
#define _GRID_H_
// Values for m_wAttrs orientation
#define GRID_VERTICAL	  0x0000
#define GRID_HORIZONTAL	  0x0001
#define GRID_IS_HORIZONTAL(_pGrid_)	  ( ((_pGrid_)->m_wAttrs & GRID_HORIZONTAL) == GRID_HORIZONTAL )
#define GRID_IS_VERTICAL(_pGrid_)	  (!GRID_IS_HORIZONTAL(_pGrid_))
// Values for m_wAttrs h-wrap
#define GRID_HWRAP_PREV_NEXT	0x0002
#define GRID_HWRAP_SAME_ROW		0x0004
#define GRID_HWRAP				(GRID_HWRAP_PREV_NEXT | GRID_HWRAP_SAME_ROW)
#define GRID_IS_HWRAP(_pGrid_)		  		((_pGrid_)->m_wAttrs & GRID_HWRAP)
#define GRID_IS_HWRAP_PREV_NEXT(_pGrid_)	( ((_pGrid_)->m_wAttrs & GRID_HWRAP_PREV_NEXT) == GRID_HWRAP_PREV_NEXT )
#define GRID_IS_HWRAP_SAME_ROW(_pGrid_)		( ((_pGrid_)->m_wAttrs & GRID_HWRAP_SAME_ROW) == GRID_HWRAP_SAME_ROW )
// Values for m_wAttrs v-wrap
#define GRID_VWRAP_PREV_NEXT	0x0008
#define GRID_VWRAP_SAME_COLUMN	0x0010
#define GRID_VWRAP				(GRID_VWRAP_PREV_NEXT | GRID_VWRAP_SAME_COLUMN)
#define GRID_IS_VWRAP(_pGrid_)		  			((_pGrid_)->m_wAttrs & GRID_VWRAP)
#define GRID_IS_VWRAP_PREV_NEXT(_pGrid_)		( ((_pGrid_)->m_wAttrs & GRID_VWRAP_PREV_NEXT) == GRID_VWRAP_PREV_NEXT )
#define GRID_IS_VWRAP_SAME_COLUMN(_pGrid_)	  ( ((_pGrid_)->m_wAttrs & GRID_VWRAP_SAME_COLUMN) == GRID_VWRAP_SAME_COLUMN )
// For horizontal grids, this member is used for items per row
#define	  m_wItemsPerRow	m_wItemsPerColumn
typedef struct oGrid
{
  WORD m_wNumItems;
  WORD m_wItemsPerColumn;
  WORD m_wLeftX;
  WORD m_wTopY;
  WORD m_wColumnWidth;
  WORD m_wRowHeight;
  WORD m_wAttrs;
} O_GRID, *PO_GRID;
WORD grid_row( PO_GRID pGrid, WORD wItemNum );
WORD grid_column( PO_GRID pGrid, WORD wItemNum );
WORD grid_last_column_in_row( PO_GRID pGrid, WORD wRow );
WORD grid_last_row_in_column( PO_GRID pGrid, WORD wColumn );
void grid_init( PO_GRID pGrid, WORD wNumItems, WORD wItemsPerColumn,
				 WORD wLeftX, WORD wTopY,
				 WORD wColumnWidth, WORD wRowHeight,
				 WORD wAttrs );
PO_GRID grid_create( WORD wNumItems, WORD wItemsPerColumn,
				 WORD wLeftX, WORD wTopY,
				 WORD wColumnWidth, WORD wRowHeight,
				 WORD wAttrs );
WORD grid_item_x( PO_GRID pGrid, WORD wItemNum );
WORD grid_item_y( PO_GRID pGrid, WORD wItemNum );
WORD grid_itemNum( PO_GRID pGrid, WORD wColumn, WORD wRow );
WORD grid_itemNum_from_pos( PO_GRID pGrid, WORD x, WORD y );
WORD grid_item_up( PO_GRID pGrid, WORD wItemNum );
WORD grid_item_down( PO_GRID pGrid, WORD wItemNum );
WORD grid_item_left( PO_GRID pGrid, WORD wItemNum );
WORD grid_item_right( PO_GRID pGrid, WORD wItemNum );
#endif // _GRID_H_

						