gui_settextstyle.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_SetTextStyle.C
Purpose 	: Implementation of various text styles
---------------------------END-OF-HEADER------------------------------
*/

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

/*********************************************************************
*
*   	Static code
*
**********************************************************************
*/
/*********************************************************************
*
*   	GUI__cbDrawTextStyle
*/
static void GUI__cbDrawTextStyle(U16 Char)
{
	int x0, x1;
	x1 = GUI_Context.DispPosX - 1;
	x0 = x1 - GUI_Context.pAFont->pfGetCharDistX(Char) + 1;
	/* Handle Underline */
	if (GUI_Context.TextStyle & GUI_TS_UNDERLINE)
	{
		int yOff = GUI_Context.pAFont->Baseline;
		if (yOff >= GUI_Context.pAFont->YSize)
		{
			yOff = GUI_Context.pAFont->YSize - 1;
		}
		LCD_DrawHLine(x0, GUI_Context.DispPosY + yOff, x1);
	}
	/* Handle strike thru */
	if (GUI_Context.TextStyle & GUI_TS_STRIKETHRU)
	{
		int yOff = GUI_Context.pAFont->Baseline - ((GUI_Context.pAFont->CHeight + 1) / 2);
		LCD_DrawHLine(x0, GUI_Context.DispPosY + yOff, x1);
	}
	/* Handle over line */
	if (GUI_Context.TextStyle & GUI_TS_OVERLINE)
	{
		int yOff = GUI_Context.pAFont->Baseline - GUI_Context.pAFont->CHeight - 1;
		if (yOff < 0)
		{
			yOff = 0;
		}
		LCD_DrawHLine(x0, GUI_Context.DispPosY + yOff, x1);
	}
}

/*********************************************************************
*
*   	Public code
*
**********************************************************************
*/
/*********************************************************************
*
*   	GUI_SetTextStyle
*/
char GUI_SetTextStyle(char Style)
{
	char OldStyle;
	GUI_LOCK();
	OldStyle = GUI_Context.TextStyle;
	GUI_pfDispCharStyle = GUI__cbDrawTextStyle;    /* Init function pointer (function in this module) */
	GUI_Context.TextStyle = Style;
	GUI_UNLOCK();
	return OldStyle;
}

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