gui_dispstringinrectex.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_DispStringInRectEx.c
Purpose 	: Implementation of GUI_DispStringInRectEx
---------------------------END-OF-HEADER------------------------------
*/

#include <stddef.h>
#include "GUI_Private.h"
#if GUI_WINSUPPORT
#include "WM.h"
#endif

#if GUI_SUPPORT_ROTATION

/*********************************************************************
*
*   	Global data
*
**********************************************************************
*/

GUI_RECT GUI_RectDispString; /* Used by LCD_Rotate... */

/*********************************************************************
*
*   	Static code
*
**********************************************************************
*/
static const GUI_ROTATION * _SetRotation(const GUI_ROTATION *pLCD_Api)
{
	const GUI_ROTATION * pLCD_ApiOld;
	GUI_LOCK();
	pLCD_ApiOld = GUI_pLCD_APIList;
	if (pLCD_Api)
	{
		GUI_Context.pClipRect_HL = NULL;		   /* Do not perform high level clipping in rotated mode */
	}
	else
	{
		GUI_Context.pClipRect_HL = &GUI_Context.ClipRect;
	}
	GUI_pLCD_APIList = pLCD_Api;
	GUI_UNLOCK();
	return pLCD_ApiOld;
}

/*********************************************************************
*
*   	Exported code
*
**********************************************************************
*/
/*********************************************************************
*
*   	GUI_DispStringInRectEx
*/
void GUI_DispStringInRectEx(const char GUI_UNI_PTR *s, GUI_RECT *pRect, int TextAlign, int MaxLen, const GUI_ROTATION *pLCD_Api)
{
	const GUI_ROTATION * pLCD_ApiOld;
	if (pLCD_Api == GUI_ROTATE_0)
	{
		/* Do nothing else but calling GUI_DispStringInRectMax if pLCD_Api == GUI_ROTATE_0 */
		GUI_DispStringInRectMax(s, pRect, TextAlign, MaxLen);
	}
	else
	{
#if (!GUI_WINSUPPORT)
		GUI_RECT Rect_Old;
#else
		const GUI_RECT * pOldClipRect = NULL;
#endif
		GUI_RECT rClip, rText = {0};
		GUI_LOCK();
		/* Set the clip rectangle */
		if (pRect)
		{
			rText = *pRect;
			GUI_RectDispString = rText;
#if (GUI_WINSUPPORT)
			pOldClipRect = WM_SetUserClipRect(pRect);
			if (pOldClipRect)
			{
				GUI__IntersectRects(&rClip, pRect, pOldClipRect);
				WM_SetUserClipRect(&rClip);
			}
#else
			Rect_Old = GUI_Context.ClipRect;
			GUI__IntersectRects(&rClip, pRect, &Rect_Old);
			LCD_SetClipRectEx(&rClip);
#endif
		}
		pLCD_ApiOld = _SetRotation(pLCD_Api);   			 /* Set the new function pointer for rotating text */
		pLCD_Api->pfRect2TextRect(&rText);  				 /* Calculate the text rectangle */
		GUI__DispStringInRect(s, &rText, TextAlign, MaxLen); /* Display the string */
		/* Restore old clipping rectangle */
#if (GUI_WINSUPPORT)
		WM_SetUserClipRect(pOldClipRect);
#else
		LCD_SetClipRectEx(&Rect_Old);
#endif
		_SetRotation(pLCD_ApiOld);
		GUI_UNLOCK();
	}
}

#else   							  /* Avoid empty object files */
void GUI_DispStringInRectEx_C(void);
void GUI_DispStringInRectEx_C(void)
{
}
#endif

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