mirror of
https://github.com/Ardour/ardour.git
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169 lines
3.8 KiB
C++
169 lines
3.8 KiB
C++
/*
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Copyright (C) 2003-2006 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <sstream>
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#include <libxml/uri.h>
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#include <lrdf.h>
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#include <pbd/compose.h>
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#include <ardour/audio_library.h>
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#include <ardour/utils.h>
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#include "i18n.h"
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using namespace std;
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using namespace ARDOUR;
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static char* TAG = "http://ardour.org/ontology/Tag";
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AudioLibrary::AudioLibrary ()
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{
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src = "file:" + get_user_ardour_path() + "sfdb";
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// workaround for possible bug in raptor that crashes when saving to a
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// non-existant file.
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touch_file(get_user_ardour_path() + "sfdb");
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lrdf_read_file(src.c_str());
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}
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AudioLibrary::~AudioLibrary ()
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{
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}
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void
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AudioLibrary::save_changes ()
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{
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if (lrdf_export_by_source(src.c_str(), src.substr(5).c_str())) {
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PBD::warning << string_compose(_("Could not open %1. Audio Library not saved"), src) << endmsg;
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}
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}
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string
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AudioLibrary::path2uri (string path)
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{
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xmlURI temp;
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memset(&temp, 0, sizeof(temp));
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xmlChar *cal = xmlCanonicPath((xmlChar*) path.c_str());
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temp.path = (char *) cal;
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xmlChar *ret = xmlSaveUri(&temp);
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xmlFree(cal);
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stringstream uri;
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uri << "file:" << (const char*) ret;
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xmlFree (ret);
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return uri.str();
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}
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string
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AudioLibrary::uri2path (string uri)
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{
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string path = xmlURIUnescapeString(uri.c_str(), 0, 0);
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return path.substr(5);
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}
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void
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AudioLibrary::set_tags (string member, vector<string> tags)
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{
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sort (tags.begin(), tags.end());
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tags.erase (unique(tags.begin(), tags.end()), tags.end());
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string file_uri(path2uri(member));
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lrdf_remove_uri_matches (file_uri.c_str());
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for (vector<string>::iterator i = tags.begin(); i != tags.end(); ++i) {
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lrdf_add_triple (src.c_str(), file_uri.c_str(), TAG, (*i).c_str(), lrdf_literal);
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}
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}
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vector<string>
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AudioLibrary::get_tags (string member)
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{
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vector<string> tags;
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lrdf_statement pattern;
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pattern.subject = strdup(path2uri(member).c_str());
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pattern.predicate = TAG;
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pattern.object = 0;
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pattern.object_type = lrdf_literal;
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lrdf_statement* matches = lrdf_matches (&pattern);
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free (pattern.subject);
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lrdf_statement* current = matches;
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while (current != 0) {
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tags.push_back (current->object);
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current = current->next;
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}
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lrdf_free_statements (matches);
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sort (tags.begin(), tags.end());
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return tags;
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}
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void
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AudioLibrary::search_members_and (vector<string>& members, const vector<string> tags)
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{
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lrdf_statement **head;
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lrdf_statement* pattern = 0;
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lrdf_statement* old = 0;
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head = &pattern;
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vector<string>::const_iterator i;
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for (i = tags.begin(); i != tags.end(); ++i){
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pattern = new lrdf_statement;
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pattern->subject = "?";
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pattern->predicate = TAG;
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pattern->object = strdup((*i).c_str());
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pattern->next = old;
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old = pattern;
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}
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if (*head != 0) {
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lrdf_uris* ulist = lrdf_match_multi(*head);
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for (uint32_t j = 0; ulist && j < ulist->count; ++j) {
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// cerr << "AND: " << uri2path(ulist->items[j]) << endl;
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members.push_back(uri2path(ulist->items[j]));
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}
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lrdf_free_uris(ulist);
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sort(members.begin(), members.end());
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unique(members.begin(), members.end());
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}
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// memory clean up
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pattern = *head;
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while(pattern){
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free(pattern->object);
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old = pattern;
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pattern = pattern->next;
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delete old;
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}
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}
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