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/*****************************************************************************
* File Name: Hand.c
* Description: Hand widget class -- implementation
* Author: Simon Leinen (simon@liasun5)
* Date Created: 6-May-92
* RCS $Header$
* RCS $Log$
****************************************************************************/
#include <X11/IntrinsicP.h>
#include "HandP.h"
#include "SwissWatcP.h"
#include <math.h>
#if NeedFunctionPrototypes
static void draw(Widget, Drawable, int, int);
#else /* not NeedFunctionPrototypes */
static void draw();
#endif /* not NeedFunctionPrototypes */
#if defined(sun) || defined(__sun__)
#define HAVE_SINCOS 1
#endif
HandClassRec handClassRec =
{
{
/* superclass */ (WidgetClass) & handOrMarkClassRec,
/* class_name */ "Hand",
/* widget_size */ sizeof(HandRec),
/* class_initialize */ NULL,
/* class_part_initialize*/ NULL,
/* class_inited */ FALSE,
/* initialize */ NULL,
/* initialize_hook */ NULL,
/* rect1 */ NULL,
/* rect2 */ NULL,
/* rect3 */ 0,
/* resources */ NULL,
/* num_resources */ 0,
/* xrm_class */ NULLQUARK,
/* rect4 */ FALSE,
/* rect5 */ FALSE,
/* rect6 */ FALSE,
/* rect7 */ FALSE,
/* destroy */ NULL,
/* resize */ NULL,
/* expose */ NULL,
/* set_values */ NULL,
/* set_values_hook */ NULL,
/* set_values_almost */ NULL,
/* get_values_hook */ NULL,
/* rect9 */ NULL,
/* version */ XtVersion,
/* callback_offsets */ NULL,
/* rect10 */ NULL,
/* query_geometry */ NULL,
/* rect11 */ NULL,
/* extension
*/ NULL,
},
{
/* draw */ draw,
/* resize */ 0,
/* realize */ 0,
},
{
/* dummy */ 0,
}
};
WidgetClass handWidgetClass = (WidgetClass) &handClassRec;
static void
draw(w, d, width, height)
Widget w;
Drawable d;
int width;
int height;
{
#define hw ((HandWidget) w)
SwissWatchWidget parent = (SwissWatchWidget) XtParent(w);
double dnow = parent->swiss_watch.now_local_sec+parent->swiss_watch.frac_sec;
double cycle = hw->hand_or_mark.cycle;
double ang;
double sinus, cosinus;
if (parent->swiss_watch.swiss_mode)
{
if (cycle < 464)
{ ang = fmod(dnow-hw->hand_or_mark.phase,60.0);
if (ang < 57.5)
{ ang = (ang * 2 * M_PI * 62) / 3600;
}
#if 0
else if (ang > 58.9)
{ if (nexttick.tv_usec > 500000) nexttick.tv_sec ++;
nexttick.tv_usec = 0;
ang = 0;
}
#endif /* 0 */
else
{ ang = 0;
}
}
else
{ ang = dnow - hw->hand_or_mark.phase;
ang -= fmod(ang,60.0) - .0001; /* fudge factor - ensure desired rounding */
ang = (fmod(ang,cycle) * 2 * M_PI) / cycle;
}
}
else
{
ang = (fmod(dnow-hw->hand_or_mark.phase,cycle) * 2 * M_PI) / cycle;
}
#if HAVE_SINCOS
sincos((double) (M_PI_2-ang), &sinus, &cosinus);
#else /* not HAVE_SINCOS */
sinus = sin((double) (M_PI_2-ang));
cosinus = cos((double) (M_PI_2-ang));
#endif /* not HAVE_SINCOS */
DrawShape((HandOrMarkWidget)hw,
d,
hw->hand_or_mark.fg_gc,
sinus, cosinus);
#ifdef DEBUG
printf("draw %s %s %f %f\n",
w->core.widget_class->core_class.class_name,
XrmNameToString(w->core.xrm_name),
ang,
ang/M_PI*180.0);
#endif /* DEBUG */
#undef hw
}
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