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/*****************************************************************************
* File Name: Mark.c
* Description: Mark widget class -- implementation
* Author: Simon Leinen (simon@liasun5)
* Date Created: 6-May-92
* RCS $Header$
* RCS $Log$
****************************************************************************/
#include <X11/IntrinsicP.h>
#include "MarkP.h"
#include <math.h>
#if NeedFunctionPrototypes
static void draw(Widget, Drawable, int, int);
#else /* not NeedFunctionPrototypes */
static void draw();
#endif /* not NeedFunctionPrototypes */
MarkClassRec markClassRec =
{
{
/* superclass */ (WidgetClass) & handOrMarkClassRec,
/* class_name */ "Mark",
/* widget_size */ sizeof(MarkRec),
/* class_initialize */ NULL,
/* class_part_initialize*/ NULL,
/* class_inited */ FALSE,
/* initialize */ NULL,
/* initialize_hook */ NULL,
/* pad */ NULL,
/* pad */ NULL,
/* pad */ 0,
/* resources */ NULL,
/* num_resources */ 0,
/* xrm_class */ NULLQUARK,
/* pad */ FALSE,
/* pad */ FALSE,
/* pad */ FALSE,
/* pad */ FALSE,
/* destroy */ NULL,
/* pad */ NULL,
/* expose */ NULL,
/* set_values */ NULL,
/* set_values_hook */ NULL,
/* pad */ NULL,
/* get_values_hook */ NULL,
/* pad */ NULL,
/* version */ XtVersion,
/* callback_offsets */ NULL,
/* pad */ NULL,
/* pad */ NULL,
/* pad */ NULL,
/* extension */ NULL,
},
{
/* draw */ draw,
/* resize */ 0,
/* realize */ 0,
},
{
/* dummy */ 0,
},
};
WidgetClass markWidgetClass = (WidgetClass) &markClassRec;
static void
draw(w, d, width, height)
Widget w;
Drawable d;
int width;
int height;
{
#define mw ((MarkWidget) w)
int cycle = mw->hand_or_mark.cycle;
unsigned k;
double sinus, cosinus;
for (k = 0; k < cycle; ++k)
{
double ang = M_PI_2-((double)k/(double)cycle*2*M_PI);
#if HAVE_SINCOS
sincos(ang, &sinus, &cosinus);
#else /* not HAVE_SINCOS */
sinus = sin(ang);
cosinus = cos(ang);
#endif /* not HAVE_SINCOS */
DrawShape((HandOrMarkWidget)mw,
d,
mw->hand_or_mark.fg_gc,
sinus, cosinus);
}
#undef mw
}
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