gui_dispstring.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_DispString.C
Purpose 	: Implementation of GUI_DispString function.
---------------------------END-OF-HEADER------------------------------
*/

#include <stddef.h> 		  /* needed for definition of NULL */
#include <stdio.h>
#include "GUI_Protected.h"

/*********************************************************************
*
*   	Public code
*
**********************************************************************
*/
/*********************************************************************
*
*   	GUI_DispString
*/
void GUI_DispString(const char GUI_UNI_PTR *s)
{
	int xAdjust, yAdjust, xOrg;
	int FontSizeY;
	if (!s)
	{
		return;
	}
	GUI_LOCK();
	FontSizeY = GUI_GetFontDistY();
	xOrg = GUI_Context.DispPosX;
	/* Adjust vertical position */
	yAdjust = GUI_GetYAdjust();
	GUI_Context.DispPosY -= yAdjust;
	for (; *s; s++)
	{
		GUI_RECT r;
		int LineNumChars = GUI__GetLineNumChars(s, 0x7fff);
		int xLineSize = GUI__GetLineDistX(s, LineNumChars);
		/* Check if x-position needs to be changed due to h-alignment */
		switch (GUI_Context.TextAlign & GUI_TA_HORIZONTAL)
		{
			case GUI_TA_CENTER:
				xAdjust = xLineSize / 2; break;
			case GUI_TA_RIGHT:
				xAdjust = xLineSize; break;
			default:
				xAdjust = 0;
		}
		r.x0 = GUI_Context.DispPosX -= xAdjust;
		r.x1 = r.x0 + xLineSize - 1;	
		r.y0 = GUI_Context.DispPosY;
		r.y1 = r.y0 + FontSizeY - 1;	
		GUI__DispLine(s, LineNumChars, &r);
		GUI_Context.DispPosY = r.y0;
		s += GUI_UC__NumChars2NumBytes(s, LineNumChars);
		if ((*s == '\n') || (*s == '\r'))
		{
			switch (GUI_Context.TextAlign & GUI_TA_HORIZONTAL)
			{
				case GUI_TA_CENTER:
				case GUI_TA_RIGHT:
					GUI_Context.DispPosX = xOrg;
					break;
				default:
					GUI_Context.DispPosX = GUI_Context.LBorder;
					break;
			}
			if (*s == '\n')
			{
				GUI_Context.DispPosY += FontSizeY;
			}
		}
		else
		{
			GUI_Context.DispPosX = r.x0 + xLineSize;
		}
		if (*s == 0)	/* end of string (last line) reached ? */
		{
			break;
		}
	}
	GUI_Context.DispPosY += yAdjust;
	GUI_Context.TextAlign &= ~GUI_TA_HORIZONTAL;
	GUI_UNLOCK();
}

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