138 lines
3.4 KiB
C
138 lines
3.4 KiB
C
/*
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*********************************************************************************************************
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* uC/GUI
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* Universal graphic software for embedded applications
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*
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* (c) Copyright 2002, Micrium Inc., Weston, FL
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* (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
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*
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* µC/GUI is protected by international copyright laws. Knowledge of the
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* source code may not be used to write a similar product. This file may
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* only be used in accordance with a license and should not be redistributed
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* in any way. We appreciate your understanding and fairness.
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*
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----------------------------------------------------------------------
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File : GUI_AddDecShift.c
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Purpose : Routines to display values as dec
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----------------------------------------------------------------------
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*/
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#include "GUI_Protected.h"
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#include "GUIDebug.h"
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#include "string.h"
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/*********************************************************************
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*
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* Public data
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*
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**********************************************************************
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*/
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const U32 GUI_Pow10[10] = {
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1 , 10, 100, 1000, 10000,
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100000, 1000000, 10000000, 100000000, 1000000000
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};
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/*********************************************************************
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*
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* Static routines
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*
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**********************************************************************
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*/
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/*********************************************************************
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*
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* _Check_NegLong
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*/
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static int _Check_NegLong(I32 *pv, char**ps) {
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if (*pv < 0) {
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*(*ps)++ = '-';
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*pv = -*pv;
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return 1;
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}
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return 0;
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}
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/*********************************************************************
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*
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* Module internal routines
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*
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**********************************************************************
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*/
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/*********************************************************************
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*
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* GUI_Long2Len
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*/
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int GUI_Long2Len(I32 vSign) {
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int Len = 1;
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I32 v = (vSign > 0) ? vSign : -vSign;
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while (( ((U32)v) >= GUI_Pow10[Len]) && (Len < 9)) {
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Len++;
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}
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if (vSign < 0) {
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Len++;
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}
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return Len;
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}
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/*********************************************************************
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*
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* GUI_AddSign
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*/
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long GUI_AddSign(long v, char**ps) {
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char c;
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if (v < 0) {
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c = '-';
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v = -v;
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} else {
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c = '+';
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}
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*(*ps)++ = c;
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**ps = '\0';
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return v;
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}
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/*********************************************************************
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*
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* Public routines
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*
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**********************************************************************
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*/
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/*********************************************************************
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*
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* GUI_AddDecShift
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*/
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void GUI_AddDecShift(I32 v, U8 Len, U8 Shift, char**ps) {
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char c;
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long d;
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#ifndef _CM16C
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Len -= _Check_NegLong(&v, ps); /* TASKING: Tool internal error S003: asertion failed - please report */
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#else
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if (v < 0) {
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*(*ps)++ = '-';
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v = -v;
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}
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#endif
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if (Shift) {
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Len--;
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}
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#if GUI_DEBUG_LEVEL >1
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if (Len > 9) {
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Len = 9;
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GUI_DEBUG_ERROROUT("Can not display more than 9 dec. digits");
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}
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#endif
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if ((U32)v >= GUI_Pow10[Len])
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v = GUI_Pow10[Len] - 1;
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while (Len) {
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if (Len-- == Shift)
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*(*ps)++ = GUI_DecChar;
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d = GUI_Pow10[Len];
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c = (char) (v / d);
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v -= c * d;
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*(*ps)++ = c + '0';
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}
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**ps = 0;
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}
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/*************************** End of file ****************************/
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