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

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--- 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);

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