gui_drawpolyline.c

来自「MCB2300_ucgui_LCD320240.rar LPC2368的u」· C语言 代码 · 共 71 行

/*
*********************************************************************************************************
*   											 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_DrawPolyLine.c
Purpose 	: Implementation of GUI_DrawPolyline
---------------------------END-OF-HEADER------------------------------
*/

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

/*********************************************************************
*
*   	Static code
*
**********************************************************************
*/
/*********************************************************************
*
*   	_DrawPolyLine
*
* Draw Poly line, which does not have to be a closed shape
*/
static void _DrawPolyLine(const GUI_POINT *pPoints, int NumPoints, int x0, int y0)
{
	GL_MoveTo(pPoints->x + x0, pPoints->y + y0);
	while (--NumPoints > 0)
	{
		pPoints++;
		GL_DrawLineTo(pPoints->x + x0, pPoints->y + y0);
	}
}

/*********************************************************************
*
*   	Public code
*
**********************************************************************
*/
/*********************************************************************
*
*   	GUI_DrawPolyLine
*/
void GUI_DrawPolyLine(const GUI_POINT *pPoints, int NumPoints, int x0, int y0)
{
	GUI_LOCK();
#if (GUI_WINSUPPORT)
	WM_ADDORG(x0, y0);
	WM_ITERATE_START(NULL);
	{
#endif
		_DrawPolyLine(pPoints, NumPoints, x0, y0);
#if (GUI_WINSUPPORT)
	} WM_ITERATE_END();
#endif
	GUI_UNLOCK();
}

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