gui_adddecshift.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_AddDecShift.c
Purpose 	: Routines to display values as dec
----------------------------------------------------------------------
*/

#include "GUI_Protected.h"
#include "GUIDebug.h"
#include "string.h"

/*********************************************************************
*
*   	Public data
*
**********************************************************************
*/

const U32 GUI_Pow10[10] = {
1 , 10, 100, 1000, 10000,
100000, 1000000, 10000000, 100000000, 1000000000
};

/*********************************************************************
*
*   	Static routines
*
**********************************************************************
*/
/*********************************************************************
*
*   	_Check_NegLong
*/
static int _Check_NegLong(I32 *pv, char **ps)
{
	if (*pv < 0)
	{
		*(*ps)++ = '-';
		*pv = -*pv;
		return 1;
	}
	return 0;
}

/*********************************************************************
*
*   	Module internal routines
*
**********************************************************************
*/
/*********************************************************************
*
*   	GUI_Long2Len
*/
int GUI_Long2Len(I32 vSign)
{
	int Len = 1;
	I32 v = (vSign > 0) ? vSign : -vSign;
	while ((((U32) v) >= GUI_Pow10[Len]) && (Len < 9))
	{
		Len++;
	}
	if (vSign < 0)
	{
		Len++;
	}
	return Len;
}

/*********************************************************************
*
*   	GUI_AddSign
*/
long GUI_AddSign(long v, char **ps)
{
	char c;
	if (v < 0)
	{
		c = '-';
		v = -v;
	}
	else
	{
		c = '+';
	}
	*(*ps)++ = c;
	**ps = '\0';
	return v;
}

/*********************************************************************
*
*   	Public routines
*
**********************************************************************
*/
/*********************************************************************
*
*   	GUI_AddDecShift
*/
void GUI_AddDecShift(I32 v, U8 Len, U8 Shift, char **ps)
{
	char c;
	long d;
#ifndef _CM16C
	Len -= _Check_NegLong(&v, ps); /* TASKING: Tool internal error S003: asertion failed - please report */
#else
	if (v < 0)
	{
		*(*ps)++ = '-';
		v = -v;
	}
#endif
	if (Shift)
	{
		Len--;
	}
#if GUI_DEBUG_LEVEL >1
	if (Len > 9)
	{
		Len = 9;
		GUI_DEBUG_ERROROUT("Can not display more than 9 dec. digits");
	}
#endif
	if ((U32) v >= GUI_Pow10[Len])
	{
		v = GUI_Pow10[Len] - 1;
	}
	while (Len)
	{
		if (Len-- == Shift)
		{
			*(*ps)++ = GUI_DecChar;
		}
		d = GUI_Pow10[Len];
		c = (char) (v / d);
		v -= c * d;
		*(*ps)++ = c + '0';
	}
	**ps = 0;
}

/*************************** End of file ****************************/