void
MidiView::_RetrieveSoftSynthList()
{
char **paths = NULL;
size_t pathCount = 0;
status_t status = find_paths(B_FIND_PATH_DATA_DIRECTORY, "synth",
&paths, &pathCount);
if (status != B_OK)
return;
fListView->MakeEmpty();
for (size_t i = 0; i < pathCount; i++) {
BDirectory directory(paths[i]);
BEntry entry;
if (directory.InitCheck() != B_OK)
continue;
while (directory.GetNextEntry(&entry) == B_OK) {
fListView->AddItem(new BStringItem(entry.Name()));
}
}
}
/* Has two modes. If passed NULL, doesn't copy anything and just returns
* the number of paths. Otherwise, parses and copies path data */
int find_paths(xmlNode *a, char **id, point2d32f **p, int **n, int nmax, int c)
{
xmlNode *cur_node = NULL;
xmlAttr *cur_attr = NULL;
xmlAttr *attr;
int got_data,got_id;
size_t len;
int err;
for(cur_node = a; cur_node; cur_node = cur_node->next){
/* depth-first search */
/* paths that recursion finds are accumulated (hence c) */
c = find_paths(cur_node->children, id, p, n, nmax, c);
if(c < 0) return c;
/* Make sure is XML element */
if(cur_node->type != XML_ELEMENT_NODE) continue;
/* make sure we're on a 'path' */
if(!xmlStrEqual((xmlChar *)"path",cur_node->name)) continue;
/* we got the path, now process it */
attr = cur_node->properties;
got_data=0; got_id=0;
for(cur_attr=attr;cur_attr;cur_attr=cur_attr->next){
/* Make sure is XML attribute */
if(cur_attr->type != XML_ATTRIBUTE_NODE) continue;
if(xmlStrEqual((xmlChar *)"d",cur_attr->name)){
got_data=1;
/* have we been given memory? */
if(p && n){
err = parse_outline2(cur_attr, p[c], n[c], nmax);
if(err) return -err;
}
}
/* store 'id' field */
if(xmlStrEqual((xmlChar *)"id",cur_attr->name)){
got_id=1;
if(id){
/* we can't use xmlStrlen because we want the number
* of bytes, not characters */
len = strlen((const char *)cur_attr->children->content);
id[c] = (char *)malloc(len+1);
if(!id[c]) return c; /* can't return error because that would cause memory leaks */
memcpy(id[c], cur_attr->children->content, len);
id[c][len]=0;
}
}
}
if(!(got_data && got_id)){
#ifdef DEBUG_PRINT
fprintf(stderr,"Error: find_paths: missing path id or data)\n");
#endif
return -1;
} else c++;
}
return c;
}
void find_paths(btree_node<int> *p_node, const int expected_path_len)
{
vector<btree_node<int> *> path;
int path_len = 0;
find_paths(p_node, expected_path_len, path, path_len);
}
