lib/gfxPoly.c File Reference

#include "common.h"
#include "gfxPoly.h"

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Functions
gfxPoly *	gfxPolyNew ()
void	gfxPolyFree (struct gfxPoly **pPoly)
void	gfxPolyAddPoint (struct gfxPoly *poly, int x, int y)

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Function Documentation

void gfxPolyAddPoint	(	struct gfxPoly *	poly,
		int	x,
		int	y
	)

Definition at line 28 of file gfxPoly.c.

References AllocVar, gfxPoly::lastPoint, gfxPoint::next, gfxPoly::ptCount, gfxPoly::ptList, gfxPoint::x, and gfxPoint::y.

Referenced by vgNextItemButton().

{
struct gfxPoint *pt;
poly->ptCount += 1;
AllocVar(pt);
pt->x = x;
pt->y = y;
if (poly->ptList == NULL)
    {
    poly->ptList = poly->lastPoint = pt;
    pt->next = pt;
    }
else
    {
    poly->lastPoint->next = pt;
    pt->next = poly->ptList;
    poly->lastPoint = pt;
    }
}

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void gfxPolyFree

(

struct gfxPoly **

pPoly

)

Definition at line 13 of file gfxPoly.c.

References freez(), gfxPoly::lastPoint, gfxPoint::next, gfxPoly::ptList, and slFreeList().

Referenced by vgNextItemButton().

{
struct gfxPoly *poly = *pPoly;
if (poly != NULL)
    {
    if (poly->lastPoint != NULL)
        {
        poly->lastPoint->next = NULL;
        slFreeList(&poly->ptList);
        }
    freez(pPoly);
    }
}

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struct gfxPoly* gfxPolyNew

(

)

[read]

Definition at line 5 of file gfxPoly.c.

References AllocVar.

Referenced by vgNextItemButton().

{
struct gfxPoly *poly;
AllocVar(poly);
return poly;
}

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