guiaaarc.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		: GUIArcAA.C
Purpose 	: Draw Arc routines with Antialiasing
---------------------------END-OF-HEADER------------------------------
*/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>

#include "GUI_Protected.h"

#if GUI_SUPPORT_AA

/*********************************************************************
*
*   	Static code
*
**********************************************************************
*/
/*********************************************************************
*
*   	_DrawArcAA
*/
static void _DrawArcAA(int x0, int y0, int rx, int ry, int a0, int a1)
{
	int PenSizePrev = GUI_GetPenSize();
	int PenSize_AA;
	int Factor;

	Factor = GUI_Context.AA_HiResEnable ? 1 : GUI_Context.AA_Factor;
	/* Convert into Hires coordinates (if not already done) */
	x0 *= Factor;
	y0 *= Factor;
	rx *= Factor;
	ry *= Factor;
	PenSize_AA = PenSizePrev * GUI_Context.AA_Factor;
	GUI_AA_Init_HiRes(x0 - rx - PenSize_AA, x0 + rx + PenSize_AA);
	GUI_SetPenSize(PenSize_AA);
	GL_DrawArc(x0, y0, rx, ry, a0, a1);
	GUI_SetPenSize(PenSizePrev);		  /* restore former pen size */
	/* Cleanup */
	GUI_AA_Exit();
}

/*********************************************************************
*
*   	Public code
*
**********************************************************************
*/
/*********************************************************************
*
*   	GUI_AA_DrawArc
*/
void GUI_AA_DrawArc(int x0, int y0, int rx, int ry, int a0, int a1)
{
	GUI_LOCK();
#if (GUI_WINSUPPORT)
	WM_ADDORG_AA(x0, y0);
	WM_ITERATE_START(NULL)
	{
#endif
		_DrawArcAA(x0, y0, rx, ry, a0, a1);
#if (GUI_WINSUPPORT)
	} WM_ITERATE_END();
#endif
	GUI_UNLOCK();
}

#else   						 /* Avoid problems with empty object modules */
void GUIAAArc_C(void);
void GUIAAArc_C(void)
{
}
#endif /* GUI_SUPPORT_AA */

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