void
pdf__circle(PDF *p, pdc_scalar x, pdc_scalar y, pdc_scalar r)
{
pdc_check_number(p->pdc, "x", x);
pdc_check_number(p->pdc, "y", y);
pdc_check_number_limits(p->pdc, "r", r, PDC_FLOAT_PREC, PDC_FLOAT_MAX);
/*
* pdf_begin_path() not required since we descend to other
* path segment functions.
*/
/* draw four Bezier curves to approximate a circle */
pdf__moveto(p, x + r, y);
pdf__curveto(p, x + r, y + r*ARC_MAGIC, x + r*ARC_MAGIC, y + r, x, y + r);
pdf__curveto(p, x - r*ARC_MAGIC, y + r, x - r, y + r*ARC_MAGIC, x - r, y);
pdf__curveto(p, x - r, y - r*ARC_MAGIC, x - r*ARC_MAGIC, y - r, x, y - r);
pdf__curveto(p, x + r*ARC_MAGIC, y - r, x + r, y - r*ARC_MAGIC, x + r, y);
pdf__closepath(p);
}
void
pdf_draw_mbox_rectangle(PDF *p, pdf_mbox *mbox, int flags)
{
pdc_bool drawleft, drawright, drawbottom, drawtop;
pdc_bool saverestore = (flags & mbox_saverestore) &&
((flags & mbox_area &&
mbox->fillcolor.type != (int) color_none) ||
(flags & mbox_border &&
mbox->strokecolor.type != (int) color_none && mbox->borderwidth > 0));
if (saverestore)
pdf__save(p);
if (flags & mbox_area && mbox->fillcolor.type != (int) color_none &&
mbox->rect.llx != mbox->rect.urx &&
mbox->rect.lly != mbox->rect.ury)
{
pdf_set_coloropt(p, pdf_fill, &mbox->fillcolor);
pdf__moveto(p, mbox->rect.llx, mbox->rect.lly);
pdf__lineto(p, mbox->rect.urx, mbox->rect.lly);
pdf__lineto(p, mbox->rect.urx, mbox->rect.ury);
pdf__lineto(p, mbox->rect.llx, mbox->rect.ury);
pdf__lineto(p, mbox->rect.llx, mbox->rect.lly);
pdf__fill(p);
}
if (flags & mbox_border &&
mbox->strokecolor.type != (int) color_none && mbox->borderwidth > 0)
{
pdf_set_coloropt(p, pdf_stroke, &mbox->strokecolor);
pdf__setlinewidth(p, mbox->borderwidth);
pdf_setdashpattern_internal(p, mbox->dasharray, mbox->dashlength,
mbox->dashphase);
pdf__setlinecap(p, mbox->linecap);
pdf__setlinejoin(p, mbox->linejoin);
drawbottom = mbox->drawbottom &&
(!(flags & mbox_openbottom) || !mbox->openrect);
if (drawbottom)
{
pdf__moveto(p, mbox->rect.llx, mbox->rect.lly);
pdf__lineto(p, mbox->rect.urx, mbox->rect.lly);
}
drawright = mbox->drawright &&
(!(flags & mbox_openright) || !mbox->openrect);
if (drawright)
{
if (!drawbottom)
pdf__moveto(p, mbox->rect.urx, mbox->rect.lly);
pdf__lineto(p, mbox->rect.urx, mbox->rect.ury);
}
drawtop = mbox->drawtop &&
(!(flags & mbox_opentop) || !mbox->openrect);
if (drawtop)
{
if (!drawright)
pdf__moveto(p, mbox->rect.urx, mbox->rect.ury);
pdf__lineto(p, mbox->rect.llx, mbox->rect.ury);
}
drawleft = mbox->drawleft &&
(!(flags & mbox_openleft) || !mbox->openrect);
if (drawleft)
{
if (!drawtop)
pdf__moveto(p, mbox->rect.llx, mbox->rect.ury);
if (drawbottom && drawright && drawtop)
pdf__closepath(p);
else
pdf__lineto(p, mbox->rect.llx, mbox->rect.lly);
}
pdf__stroke(p);
}
if (saverestore)
pdf__restore(p);
}
