gui_array_resizeitem.c

MCB2300_ucgui_LCD320240.rar LPC2368的uc/gui的移植

/*
*********************************************************************************************************
*   											 uC/GUI
*   					 Universal graphic software for embedded applications
*
*   					(c) Copyright 2002, Micrium Inc., Weston, FL
*   					(c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
*
*   		   礐/GUI is protected by international copyright laws. Knowledge of the
*   		   source code may not be used to write a similar product. This file may
*   		   only be used in accordance with a license and should not be redistributed
*   		   in any way. We appreciate your understanding and fairness.
*
----------------------------------------------------------------------
File		: GUI_ARRAY_ResizeItem.c
Purpose 	: Array handling routines
---------------------------END-OF-HEADER------------------------------
*/

#include "GUI_ARRAY.h"
#include <string.h>

#if GUI_WINSUPPORT

/*********************************************************************
*
*   	public code
*
**********************************************************************
*/
/*********************************************************************
*
*   	GUI_ARRAY_ResizeItem
*
* Purpose:
*   Resizes one element in a GUI_ARRAY.
* Return value:
*   Handle of allocated memory block if successful
*   0 if failed
*
*/
void * GUI_ARRAY_ResizeItem(GUI_ARRAY *pThis, unsigned int Index, int Len)
{
	void* r = NULL;
	WM_HMEM hNew;
	hNew = GUI_ALLOC_AllocZero(Len);
	if (hNew)
	{
		void* pOld = GUI_ARRAY_GetpItem(pThis, Index);
		void* pNew = GUI_ALLOC_h2p(hNew);
		memcpy(pNew, pOld, Len);
		if (GUI_ARRAY_SethItem(pThis, Index, hNew))
		{
			GUI_ALLOC_FreePtr(&hNew);    /* Free on error */
		}
		else
		{
			r = pNew;
		}
	}
	return r;
}

#else  /* avoid empty object files */

void GUI_ARRAY_ResizeItem_C(void);
void GUI_ARRAY_ResizeItem_C(void)
{
}

#endif