Wt

h1. LibHaru

Wt requires the following patch for libHaru to render arcs correctly. This patch has been tested against libhar 2.1.0 and 2.2.0

--- libharu-2.1.0/src/hpdf_page_operator.c 2008-05-27 20:23:31.000000000 +0200
+++ libharu-2.1.0-patched/src/hpdf_page_operator.c 2010-07-22 10:05:21.000000000 +0200
@@ -2192,7 +2192,7 @@

 HPDF_PTRACE ((" HPDF_Page_Arc\n"));

• if (ang1 >= ang2 || (ang2 - ang1) >= 360)

• if (fabs(ang2 - ang1) >= 360)
  HPDF_RaiseError (page->error, HPDF_PAGE_OUT_OF_RANGE, 0);

  if (ret != HPDF_OK)
  @@ -2205,10 +2205,10 @@

  for (;;) {

•    if (ang2 - ang1 <= 90)
  

•    if (fabs(ang2 - ang1) <= 90)
       return InternalArc (page, x, y, ray, ang1, ang2, cont_flg);
   else {
  

•        HPDF_REAL tmp_ang = ang1 + 90;
  

•   HPDF_REAL tmp_ang = (ang2 > ang1 ? ang1 + 90 : ang1 - 90);
  
       if ((ret = InternalArc (page, x, y, ray, ang1, tmp_ang, cont_flg))
               != HPDF_OK)
  

  @@ -2217,7 +2217,7 @@
  ang1 = tmp_ang;
  }

•    if (ang1 >= ang2)
  

•    if (fabs(ang1 - ang2) < 0.1)
       break;
  
   cont_flg = HPDF_TRUE;
  

  @@ -2280,7 +2280,11 @@
  pbuf = HPDF_FToA (pbuf, (HPDF_REAL)x0, eptr);
  *pbuf++ = ' ';
  pbuf = HPDF_FToA (pbuf, (HPDF_REAL)y0, eptr);

•    pbuf = (char *)HPDF_StrCpy (pbuf, " m\012", eptr);
  

  +

• if (attr->gmode == HPDF_GMODE_PATH_OBJECT)

• pbuf = (char *)HPDF_StrCpy (pbuf, " l\012", eptr);
  

• else

• pbuf = (char *)HPDF_StrCpy (pbuf, " m\012", eptr);
  

  }

  pbuf = HPDF_FToA (pbuf, (HPDF_REAL)x1, eptr);