lib/psPoly.c File Reference

#include "common.h"
#include "psPoly.h"

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Functions
psPoly *	psPolyNew ()
void	psPolyFree (struct psPoly **pPoly)
void	psPolyAddPoint (struct psPoly *poly, double x, double y)

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Function Documentation

void psPolyAddPoint	(	struct psPoly *	poly,
		double	x,
		double	y
	)

Definition at line 28 of file psPoly.c.

References AllocVar, psPoly::lastPoint, psPoint::next, psPoly::ptCount, psPoly::ptList, psPoint::x, and psPoint::y.

Referenced by pscmDrawPoly().

{
struct psPoint *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 psPolyFree

(

struct psPoly **

pPoly

)

Definition at line 13 of file psPoly.c.

References freez(), psPoly::lastPoint, psPoint::next, psPoly::ptList, and slFreeList().

Referenced by pscmDrawPoly().

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

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struct psPoly* psPolyNew

(

)

[read]

Definition at line 5 of file psPoly.c.

References AllocVar.

Referenced by pscmDrawPoly().

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

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