void TextOnPath(Painter& sw) { Font fnt = Roman(100); FontInfo fi = fnt.Info(); double pos = 0; const char *s = "Hello world, this is text on path!"; int l = GetTextSize(s, fnt).cx; double r = l / (2 * M_PI); sw.Circle(300, 300, r).Stroke(1, Red()); while(*s) { double w = fi[*s]; sw.BeginOnPath(pos + w / 2, true); sw.Character(-w / 2, -fi.GetAscent(), *s++, fnt) .Fill(0, -fi.GetAscent(), Yellow(), 0, fi.GetDescent(), Blue()) .Stroke(1, Black()); sw.End(); pos += w; } }
bool Paragraph::Format(ParaTypo& pfmt, int cx, int zoom) const { int len = length + !!style.indent; Buffer<char> chr(len); Buffer<int> width(len); Buffer<ParaTypo::Part *> info(len); Buffer<ParaTypo::Part> pinfo(part.GetCount() + !!style.indent); const Part *pptr = part.Begin(); const Part *plim = part.End(); ParaTypo::Part *pp = pinfo; char *cp = chr; int *wp = width; ParaTypo::Part **ip = info; if(!IsNull(parafont)) { Font pf = parafont; // pf.Height(max(1, DocZoom(zoom, parafont.GetHeight()))); int n = DocZoom(zoom, parafont.GetHeight()); pf.Height(n ? n : 1); FontInfo f = pf.Info(); pfmt.SetMin(f.GetAscent(), f.GetDescent(), f.GetExternal()); } /* if(!IsNull(parafont)) { FontInfo f = w.GetFontInfo(parafont); pfmt.SetMin(DocZoom(zoom, f.GetAscent()), DocZoom(zoom, f.GetDescent()), DocZoom(zoom, f.GetExternal())); } */ if(style.indent) { static Part dummy; *cp++ = ' '; *wp++ = DocZoom(zoom, style.indent); pp->Set(Arial(0), Black); pp->voidptr = &dummy; *ip++ = pp; pp++; } while(pptr != plim) { if(pptr->pr) { *cp++ = '@'; Size sz = pptr->pr.GetStdSize(); *wp++ = pp->width = pptr->pr && !pptr->sz.cx ? sz.cx : DocZoom(zoom, pptr->sz.cx); *ip++ = pp; pp->ascent = minmax(pptr->pr && !pptr->sz.cy ? sz.cy : DocZoom(zoom, pptr->sz.cy), 0, 1000); pp->descent = 0; pp->external = pp->overhang = 0; pp->color = pptr->color; } else { Font font = pptr->font; font.Height(DocZoom(zoom, pptr->font.GetHeight())); FontInfo pf = pp->Set(font, pptr->color); const char *s = pptr->text; int n = pptr->text.GetLength(); while(n--) { *cp++ = *s; *wp++ = pf[*s == 31 ? 32 : ToUnicode((byte) *s, CHARSET_DEFAULT)]; *ip++ = pp; s++; } } pp->voidptr = (void *)pptr; pp++; pptr++; } return pfmt.Format(style.align, len, chr, width, info, cx); }