system/lib/lcd/gui/Core/GUI_DrawPolyline.c

67 lines
2.2 KiB
C

/*
*********************************************************************************************************
* uC/GUI
* Universal graphic software for embedded applications
*
* (c) Copyright 2002, Micrium Inc., Weston, FL
* (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
*
* µC/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 ****************************/