guivalf.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		: GUIValF.C
Purpose 	: Displaying floating point values
---------------------------END-OF-HEADER------------------------------
*/

#include "GUI_Protected.h"
#include "math.h"

/*********************************************************************
*
*   	Static code
*
**********************************************************************
*/
/*********************************************************************
*
*   	_DispFloatFix
*/
static void _DispFloatFix(float f, char Len, char Decs, int DrawPlusSign)
{
	f *= GUI_Pow10[(unsigned) Decs];
	f += 0.5;
	f = (float) floor(f);
	if (DrawPlusSign)
	{
		GUI_DispSDecShift((long) f, Len, Decs);
	}
	else
	{
		GUI_DispDecShift((long) f, Len, Decs);
	}
}

/*********************************************************************
*
*   	Public code
*
**********************************************************************
*/
/*********************************************************************
*
*   	GUI_DispFloatFix
*/
void GUI_DispFloatFix(float f, char Len, char Decs)
{
	_DispFloatFix(f, Len, Decs, 0);
}

/*********************************************************************
*
*   	GUI_DispFloatMin
*/
void GUI_DispFloatMin(float f, char Fract)
{
	char Len;
	Len = GUI_Long2Len((long) f);
	if ((f < 0) && (f > -1))
	{
		/* If value < 0 and > -1 (e.g. -0.123) increment length by 1 */
		Len++;
	}
	_DispFloatFix(f, (char) (Len + Fract + (Fract ? 1 : 0)), (char) Fract, 0);
}

/*********************************************************************
*
*   	GUI_DispFloat
*/
void GUI_DispFloat(float f, char Len)
{
	int Decs;
	Decs = Len - GUI_Long2Len((long) f) - 1;
	if ((f < 0) && (f > -1))
	{
		/* If value < 0 and > -1 (e.g. -0.123) decrement Decs */
		Decs--;
	}
	if (Decs < 0)
	{
		Decs = 0;
	}
	_DispFloatFix(f, Len, (char) Decs, 0);
}

/*********************************************************************
*
*   	GUI_DispSFloatFix
*/
void GUI_DispSFloatFix(float f, char Len, char Fract)
{
	_DispFloatFix(f, Len, Fract, 1);
}

/*********************************************************************
*
*   	GUI_DispSFloatMin
*/
void GUI_DispSFloatMin(float f, char Fract)
{
	char Len;
	Len = GUI_Long2Len((long) f);
	if ((f < 0) && (f > -1))
	{
		/* If value < 0 and > -1 (e.g. -0.123) increment length by 1 */
		Len++;
	}
	if (f > 0)
	{
		Len++;
	}
	_DispFloatFix(f, (char) (Len + Fract + (Fract ? 1 : 0)), (char) Fract, 1);
}

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