gui_dispstringinrect.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_DispStringInRect.c
Purpose 	: Implementation of GUI_DispStringInRect
---------------------------END-OF-HEADER------------------------------
*/

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

/*********************************************************************
*
*   	Public code
*
**********************************************************************
*/
/*********************************************************************
*
*   	GUI__DispStringInRect
*/
void GUI__DispStringInRect(const char GUI_UNI_PTR *s, GUI_RECT *pRect, int TextAlign, int MaxNumChars)
{
	GUI_RECT r;
	GUI_RECT rLine;
	int y = 0;
	const char GUI_UNI_PTR *sOrg = s;
	int FontYSize;
	int xLine = 0;
	int LineLen;
	int NumCharsRem;		   /* Number of remaining characters */
	FontYSize = GUI_GetFontSizeY();
	if (pRect)
	{
		r = *pRect;
	}
	else
	{
		GUI_GetClientRect(&r);
	}
	/* handle vertical alignment */
	if ((TextAlign & GUI_TA_VERTICAL) == GUI_TA_TOP)
	{
		y = r.y0;
	}
	else
	{
		int NumLines;
		/* Count the number of lines */
		for (NumCharsRem = MaxNumChars, NumLines = 1; NumCharsRem ; NumLines++)
		{
			LineLen = GUI__GetLineNumChars(s, NumCharsRem);
			NumCharsRem -= LineLen;
			s += GUI_UC__NumChars2NumBytes(s, LineLen);
			if (GUI__HandleEOLine(&s))
			{
				break;
			}
		}
		/* Do the vertical alignment */
		switch (TextAlign & GUI_TA_VERTICAL)
		{
			case GUI_TA_BASELINE:
			case GUI_TA_BOTTOM:
				y = r.y1 - NumLines * FontYSize + 1;
				break;
			case GUI_TA_VCENTER:
				y = r.y0 + (r.y1 - r.y0 + 1 - NumLines * FontYSize) / 2;
				break;
		}
	}
	/* Output string */
	for (NumCharsRem = MaxNumChars, s = sOrg; NumCharsRem;)
	{
		int xLineSize;
		LineLen = GUI__GetLineNumChars(s, NumCharsRem);
		NumCharsRem -= LineLen;
		xLineSize = GUI__GetLineDistX(s, LineLen);
		switch (TextAlign & GUI_TA_HORIZONTAL)
		{
			case GUI_TA_HCENTER:
				xLine = r.x0 + (r.x1 - r.x0 - xLineSize) / 2; break;
			case GUI_TA_LEFT:
				xLine = r.x0; break;
			case GUI_TA_RIGHT:
				xLine = r.x1 - xLineSize + 1;
		}
		rLine.x0 = GUI_Context.DispPosX = xLine;
		rLine.x1 = rLine.x0 + xLineSize - 1;
		rLine.y0 = GUI_Context.DispPosY = y;
		rLine.y1 = y + FontYSize - 1;
		GUI__DispLine(s, LineLen, &rLine);
		s += GUI_UC__NumChars2NumBytes(s, LineLen);
		y += GUI_GetFontDistY();
		if (GUI__HandleEOLine(&s))
		{
			break;
		}
	}
}

/*********************************************************************
*
*   	GUI_DispStringInRectMax
*/
#if (GUI_WINSUPPORT)
void GUI_DispStringInRectMax(const char GUI_UNI_PTR *s, GUI_RECT *pRect, int TextAlign, int MaxLen)
{
	if (s)
	{
		const GUI_RECT *pOldClipRect = NULL;
		GUI_RECT r;
		GUI_LOCK();
		if (pRect)
		{
			pOldClipRect = WM_SetUserClipRect(pRect);
			if (pOldClipRect)
			{
				GUI__IntersectRects(&r, pRect, pOldClipRect);
				WM_SetUserClipRect(&r);
			}
		}
		GUI__DispStringInRect(s, pRect, TextAlign, MaxLen);
		WM_SetUserClipRect(pOldClipRect);
		GUI_UNLOCK();
	}
}

#else

void GUI_DispStringInRectMax(const char GUI_UNI_PTR *s, GUI_RECT *pRect, int TextAlign, int MaxLen)
{
	GUI_RECT Rect_Old, r;
	if (s && pRect)
	{
		GUI_LOCK();
		Rect_Old = GUI_Context.ClipRect;
		GUI__IntersectRects(&r, pRect, &Rect_Old);
		LCD_SetClipRectEx(&r);
		GUI__DispStringInRect(s, pRect, TextAlign, MaxLen);
		LCD_SetClipRectEx(&Rect_Old);
		GUI_UNLOCK();
	}
}
#endif

/*********************************************************************
*
*   	GUI_DispStringInRect
*/
void GUI_DispStringInRect(const char GUI_UNI_PTR *s, GUI_RECT *pRect, int TextAlign)
{
	GUI_DispStringInRectMax(s, pRect, TextAlign, 0x7fff);
}

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