static void iDialDrawHorizontal(Ihandle* ih)
{
double delta = 2 * M_PI / ih->data->num_div;
int x;
double a, amin, amax;
int xmin, xmax;
ih->data->radius = (ih->data->w - 2 * IDIAL_SPACE - 2) / 2.0;
amin = 0.0;
amax = M_PI;
if(ih->data->angle < amin)
{
for (a = ih->data->angle; a < amin; a += delta) ;
}
else
{
for (a = ih->data->angle; a > amin; a-= delta) ;
a += delta;
}
iDialDrawHorizontalBackground(ih, amin, amax, &xmin, &xmax);
cdIupDrawRaiseRect(ih->data->cddbuffer, xmin, IDIAL_SPACE, xmax, ih->data->h-1-IDIAL_SPACE,
ih->data->light_shadow, ih->data->mid_shadow, ih->data->dark_shadow);
for ( ; a < amax; a += delta)
{
if (a < 0.5 * M_PI) x = (int)(ih->data->w / 2.0 - ih->data->radius * cos(a));
else x = (int)(ih->data->w / 2.0 + ih->data->radius * fabs(cos(a)));
if (abs(x - xmin) < 3 || abs(xmax - x) < 3)
continue;
cdIupDrawVertSunkenMark(ih->data->cddbuffer, x, IDIAL_SPACE+2, ih->data->h-1-IDIAL_SPACE-1, ih->data->light_shadow, ih->data->dark_shadow);
}
}
static void iDialDrawVertical(Ihandle* ih)
{
double delta = 2 * M_PI / ih->data->num_div;
double a, amin, amax;
int ymin, ymax;
ih->data->radius = (ih->data->h - 2 * IDIAL_SPACE - 2) / 2.0;
amin = 0.0;
amax = M_PI;
if(ih->data->angle < amin)
{
for (a = ih->data->angle; a < amin; a += delta)
;
}
else
{
for (a = ih->data->angle; a > amin; a -= delta)
;
a += delta;
}
iDialDrawVerticalBackground(ih, amin, amax, &ymin, &ymax);
cdIupDrawRaiseRect(ih->data->cd_canvas, IDIAL_SPACE, ymin, ih->data->w-1-IDIAL_SPACE, ymax,
ih->data->light_shadow, ih->data->mid_shadow, ih->data->dark_shadow);
for (; a < amax; a += delta) /* graduation */
{
int y;
if (a < 0.5 * M_PI) y = (int)(ih->data->h / 2.0 - ih->data->radius * cos(a));
else y = (int)(ih->data->h / 2.0 + ih->data->radius * fabs(cos(a)));
if (abs(y-ymin) < 3 || abs(ymax-y) < 3)
continue;
cdIupDrawHorizSunkenMark(ih->data->cd_canvas, IDIAL_SPACE+1, ih->data->w-1-IDIAL_SPACE-2, y, ih->data->light_shadow, ih->data->dark_shadow);
}
}
