void GVEdge::setGVEdgeLabelSize(int width_pixels, int height_pixels)
{
//update GV l width
char label[256];
sprintf(label,"<table width=\"%d\" height=\"%d\"><tr><td>Label</td></tr></table>", width_pixels, height_pixels);
#ifdef USE_LIBGRAPH_NOT_LIBCGRAPH
char* html = agstrdup_html(label);
agsafeset(this->gv_edge, (char*)"label", html, (char*)"html");
agstrfree(html);
#else
char* html = agstrdup_html(this->layout->getGVGraph(), label);
agsafeset(this->gv_edge, (char*)"label", html, (char*)"html");
agstrfree(this->layout->getGVGraph(), html);
#endif
//DBG() << "(" << width_pixels<< ", " << height_pixels << ") for label '" << agget (this->gv_edge, (char*)"label") << "'";
}
/* copyAttr:
* Copy attributes from src to tgt. Overrides currently
* defined values.
* FIX: we should probably use the default value of the source
* graph when initializing the attribute, rather than "".
* NOTE: We do not assume src and tgt have the same kind.
*/
int copyAttr(Agobj_t * src, Agobj_t * tgt)
{
Agraph_t *srcg;
Agraph_t *tgtg;
Agsym_t *sym = 0;
Agsym_t *tsym = 0;
int skind = AGTYPE(src);
int tkind = AGTYPE(tgt);
char* val;
srcg = agraphof(src);
tgtg = agraphof(tgt);
while ((sym = agnxtattr(srcg, skind, sym))) {
tsym = agattrsym(tgt, sym->name);
if (!tsym)
tsym = agattr(tgtg, tkind, sym->name, sym->defval);
val = agxget(src, sym);
if (aghtmlstr (val)) {
val = agstrdup_html (tgtg, val);
agxset(tgt, tsym, val);
agstrfree (tgtg, val);
}
else
agxset(tgt, tsym, val);
}
return 0;
}
static void myagxset(void *obj, Agsym_t *a, char *val)
{
int len;
char *hs;
if (a->name[0] == 'l' && val[0] == '<' && strcmp(a->name, "label") == 0) {
len = strlen(val);
if (val[len-1] == '>') {
hs = strdup(val+1);
*(hs+len-2) = '\0';
val = agstrdup_html(hs);
free(hs);
}
}
agxset(obj, a->index, val);
}
/* toHtml:
* Create a string marked as HTML
*/
char *toHtml(Agraph_t* g, char *arg)
{
return agstrdup_html (g, arg);
}
