gui_uc_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_UC_DispString.c
Purpose 	: Implementation of GUI_UC_DispString
---------------------------END-OF-HEADER------------------------------
*/

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

/*********************************************************************
*
*   	Static code
*
**********************************************************************
*/
/*********************************************************************
*
*   	_GetLineDistX
*/
static int _GetLineDistX(const U16 GUI_UNI_PTR *s, int MaxNumChars)
{
	int Dist = 0;
	if (s)
	{
		U16 Char;
		while (((Char = *s) != 0) && MaxNumChars >= 0)
		{
			s++;
			MaxNumChars--;
			Dist += GUI_GetCharDistX(Char);
		}
	}
	return Dist;
}

/*********************************************************************
*
*   	_GetLineLen
*/
static int _GetLineLen(const U16 GUI_UNI_PTR *s, int MaxLen)
{
	int Len = 0;
	if (!s)
	{
		return 0;
	}
	{
		while ((*s != 0) && Len < MaxLen)
		{
			Len++; s++;
		}
	}
	return Len;
}

/*********************************************************************
*
*   	_DispLine_UC
*/
static void _DispLine_UC(const U16 GUI_UNI_PTR *s, int Len, const GUI_RECT *pRect)
{
	if (GUI_Context.pClipRect_HL)
	{
		if (GUI_RectsIntersect(GUI_Context.pClipRect_HL, pRect) == 0)
		{
			return;
		}
	}
	{
		U16 c0;
		while (--Len >= 0)
		{
			c0 = *s++;
			GL_DispChar(c0);
		}
	}
}

/*********************************************************************
*
*   	_DispLine
*/
static void _DispLine(const U16 GUI_UNI_PTR *s, int Len, const GUI_RECT *pr)
{
	GUI_RECT r;
	r = *pr;
#if GUI_WINSUPPORT
	WM_ADDORG(r.x0, r.y0);
	WM_ADDORG(r.x1, r.y1);
	WM_ITERATE_START(&r)
	{
#endif
		GUI_Context.DispPosX = r.x0;
		GUI_Context.DispPosY = r.y0;
		_DispLine_UC(s, Len, &r);    /* Do the actual drawing via routine call. */
#if GUI_WINSUPPORT
	} WM_ITERATE_END();
	WM_SUBORG(GUI_Context.DispPosX, GUI_Context.DispPosY);
#endif
}

/*********************************************************************
*
*   	Public code
*
**********************************************************************
*/
/*********************************************************************
*
*   	GUI_UC_DispString
*/
void GUI_UC_DispString(const U16 GUI_UNI_PTR *s)
{
	int xAdjust, yAdjust, xOrg;
	int FontSizeY;
	if (!s)
	{
		return;
	}
	GUI_LOCK();
	FontSizeY = GUI_Context.pAFont->YSize;
	xOrg = GUI_Context.DispPosX;
	/* Adjust vertical position */
	yAdjust = GUI_GetYAdjust();
	GUI_Context.DispPosY -= yAdjust;
	for (; *s; s++)
	{
		GUI_RECT r;
		int LineLen = _GetLineLen(s, 0x7fff);
		int xLineSize = _GetLineDistX(s, LineLen);
		/* 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;	
		_DispLine(s, LineLen, &r);
		GUI_Context.DispPosY = r.y0;
		s += LineLen;
		if (*s == '\n')
		{
			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;
			}
			GUI_Context.DispPosY += GUI_GetFontDistY();
		}
		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 ****************************/