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ladish/grauph/src/libs/client/PatchLibrarian.cpp

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/* This file is part of Om. Copyright (C) 2005 Dave Robillard.
*
* Om is free software; you can redistribute it and/or modify it under the
* terms of the GNU General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option) any later
* version.
*
* Om is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "PatchLibrarian.h"
#include <libxml/parser.h>
#include <libxml/tree.h>
#include <libxml/xpath.h>
#include "PatchModel.h"
#include "NodeModel.h"
#include "ModelClientInterface.h"
#include "ConnectionModel.h"
#include "PortModel.h"
#include "PresetModel.h"
#include "OSCModelEngineInterface.h"
#include "PluginModel.h"
#include "util/Path.h"
#include <iostream>
#include <fstream>
#include <vector>
#include <utility> // for pair, make_pair
#include <cassert>
#include <cstring>
#include <string>
#include <unistd.h> // for usleep
#include <cstdlib> // for atof
#include <cmath>
using std::string; using std::vector; using std::pair;
using std::cerr; using std::cout; using std::endl;
namespace LibOmClient {
/** Searches for the filename passed in the path, returning the full
* path of the file, or the empty string if not found.
*
* This function tries to be as friendly a black box as possible - if the path
* passed is an absolute path and the file is found there, it will return
* that path, etc.
*
* additional_path is a list (colon delimeted as usual) of additional
* directories to look in. ie the directory the parent patch resides in would
* be a good idea to pass as additional_path, in the case of a subpatch.
*/
string
PatchLibrarian::find_file(const string& filename, const string& additional_path)
{
string search_path = additional_path + ":" + m_patch_path;
// Try to open the raw filename first
std::ifstream is(filename.c_str(), std::ios::in);
if (is.good()) {
is.close();
return filename;
}
string directory;
string full_patch_path = "";
while (search_path != "") {
directory = search_path.substr(0, search_path.find(':'));
if (search_path.find(':') != string::npos)
search_path = search_path.substr(search_path.find(':')+1);
else
search_path = "";
full_patch_path = directory +"/"+ filename;
std::ifstream is;
is.open(full_patch_path.c_str(), std::ios::in);
if (is.good()) {
is.close();
return full_patch_path;
} else {
cerr << "[PatchLibrarian] Could not find patch file " << full_patch_path << endl;
}
}
return "";
}
/** Save a patch from a PatchModel to a filename.
*
* The filename passed is the true filename the patch will be saved to (with no prefixing or anything
* like that), and the patch_model's filename member will be set accordingly.
*
* This will break if:
* - The filename does not have an extension (ie contain a ".")
* - The patch_model has no (Om) path
*/
void
PatchLibrarian::save_patch(PatchModel* patch_model, const string& filename, bool recursive)
{
assert(filename != "");
assert(patch_model->path() != "");
cout << "Saving patch " << patch_model->path() << " to " << filename << endl;
patch_model->filename(filename);
string dir = filename.substr(0, filename.find_last_of("/"));
NodeModel* nm = NULL;
PatchModel* spm = NULL; // subpatch model
xmlDocPtr xml_doc = NULL;
xmlNodePtr xml_root_node = NULL;
xmlNodePtr xml_node = NULL;
xmlNodePtr xml_child_node = NULL;
xmlNodePtr xml_grandchild_node = NULL;
xml_doc = xmlNewDoc((xmlChar*)"1.0");
xml_root_node = xmlNewNode(NULL, (xmlChar*)"patch");
xmlDocSetRootElement(xml_doc, xml_root_node);
const size_t temp_buf_length = 255;
char temp_buf[temp_buf_length];
string patch_name;
if (patch_model->path() != "/") {
patch_name = patch_model->name();
} else {
patch_name = filename;
if (patch_name.find("/") != string::npos)
patch_name = patch_name.substr(patch_name.find_last_of("/") + 1);
if (patch_name.find(".") != string::npos)
patch_name = patch_name.substr(0, patch_name.find_last_of("."));
}
assert(patch_name.length() > 0);
xml_node = xmlNewChild(xml_root_node, NULL, (xmlChar*)"name",
(xmlChar*)patch_name.c_str());
snprintf(temp_buf, temp_buf_length, "%zd", patch_model->poly());
xml_node = xmlNewChild(xml_root_node, NULL, (xmlChar*)"polyphony", (xmlChar*)temp_buf);
// Write metadata
for (map<string, string>::const_iterator i = patch_model->metadata().begin();
i != patch_model->metadata().end(); ++i) {
// Dirty hack, don't save coordinates in patch file
if ((*i).first != "module-x" && (*i).first != "module-y"
&& (*i).first != "filename")
xml_node = xmlNewChild(xml_root_node, NULL,
(xmlChar*)(*i).first.c_str(), (xmlChar*)(*i).second.c_str());
assert((*i).first != "node");
assert((*i).first != "subpatch");
assert((*i).first != "name");
assert((*i).first != "polyphony");
assert((*i).first != "preset");
}
// Save nodes and subpatches
for (NodeModelMap::const_iterator i = patch_model->nodes().begin(); i != patch_model->nodes().end(); ++i) {
nm = i->second.get();
if (nm->plugin()->type() == PluginModel::Patch) { // Subpatch
spm = (PatchModel*)i->second.get();
xml_node = xmlNewChild(xml_root_node, NULL, (xmlChar*)"subpatch", NULL);
xml_child_node = xmlNewChild(xml_node, NULL, (xmlChar*)"name", (xmlChar*)spm->name().c_str());
string ref_filename;
// No path
if (spm->filename() == "") {
ref_filename = spm->name() + ".om";
spm->filename(dir +"/"+ ref_filename);
// Absolute path
} else if (spm->filename().substr(0, 1) == "/") {
// Attempt to make it a relative path, if it's undernath this patch's dir
if (dir.substr(0, 1) == "/" && spm->filename().substr(0, dir.length()) == dir) {
ref_filename = spm->filename().substr(dir.length()+1);
} else { // FIXME: not good
ref_filename = spm->filename().substr(spm->filename().find_last_of("/")+1);
spm->filename(dir +"/"+ ref_filename);
}
} else {
ref_filename = spm->filename();
}
xml_child_node = xmlNewChild(xml_node, NULL, (xmlChar*)"filename", (xmlChar*)ref_filename.c_str());
snprintf(temp_buf, temp_buf_length, "%zd", spm->poly());
xml_child_node = xmlNewChild(xml_node, NULL, (xmlChar*)"polyphony", (xmlChar*)temp_buf);
// Write metadata
for (map<string, string>::const_iterator i = nm->metadata().begin();
i != nm->metadata().end(); ++i) {
// Dirty hack, don't save metadata that would be in patch file
if ((*i).first != "polyphony" && (*i).first != "filename"
&& (*i).first != "author" && (*i).first != "description")
xml_child_node = xmlNewChild(xml_node, NULL,
(xmlChar*)(*i).first.c_str(), (xmlChar*)(*i).second.c_str());
}
if (recursive)
save_patch(spm, spm->filename(), true);
} else { // Normal node
xml_node = xmlNewChild(xml_root_node, NULL, (xmlChar*)"node", NULL);
xml_child_node = xmlNewChild(xml_node, NULL, (xmlChar*)"name", (xmlChar*)nm->name().c_str());
if (!nm->plugin()) break;
xml_child_node = xmlNewChild(xml_node, NULL, (xmlChar*)"polyphonic",
(xmlChar*)((nm->polyphonic()) ? "true" : "false"));
xml_child_node = xmlNewChild(xml_node, NULL, (xmlChar*)"type",
(xmlChar*)nm->plugin()->type_string());
/*
xml_child_node = xmlNewChild(xml_node, NULL, (xmlChar*)"plugin-label",
(xmlChar*)(nm->plugin()->plug_label().c_str()));
if (nm->plugin()->type() != PluginModel::Internal) {
xml_child_node = xmlNewChild(xml_node, NULL, (xmlChar*)"library-name",
(xmlChar*)(nm->plugin()->lib_name().c_str()));
}*/
xml_child_node = xmlNewChild(xml_node, NULL, (xmlChar*)"plugin-uri",
(xmlChar*)(nm->plugin()->uri().c_str()));
// Write metadata
for (map<string, string>::const_iterator i = nm->metadata().begin(); i != nm->metadata().end(); ++i) {
// DSSI _hack_ (FIXME: fix OSC to be more like this and not smash DSSI into metadata?)
if ((*i).first.substr(0, 16) == "dssi-configure--") {
xml_child_node = xmlNewChild(xml_node, NULL, (xmlChar*)"dssi-configure", NULL);
xml_grandchild_node = xmlNewChild(xml_child_node, NULL,
(xmlChar*)"key", (xmlChar*)(*i).first.substr(16).c_str());
xml_grandchild_node = xmlNewChild(xml_child_node, NULL,
(xmlChar*)"value", (xmlChar*)(*i).second.c_str());
} else if ((*i).first == "dssi-program") {
xml_child_node = xmlNewChild(xml_node, NULL, (xmlChar*)"dssi-program", NULL);
xml_grandchild_node = xmlNewChild(xml_child_node, NULL,
(xmlChar*)"bank", (xmlChar*)(*i).second.substr(0, (*i).second.find("/")).c_str());
xml_grandchild_node = xmlNewChild(xml_child_node, NULL,
(xmlChar*)"program", (xmlChar*)(*i).second.substr((*i).second.find("/")+1).c_str());
} else {
xml_child_node = xmlNewChild(xml_node, NULL,
(xmlChar*)(*i).first.c_str(), (xmlChar*)(*i).second.c_str());
}
}
// Write port metadata, if necessary
for (PortModelList::const_iterator i = nm->ports().begin(); i != nm->ports().end(); ++i) {
const PortModel* const pm = (*i).get();
if (pm->is_input() && pm->user_min() != pm->min_val() || pm->user_max() != pm->max_val()) {
xml_child_node = xmlNewChild(xml_node, NULL, (xmlChar*)"port", NULL);
xml_grandchild_node = xmlNewChild(xml_child_node, NULL, (xmlChar*)"name",
(xmlChar*)pm->path().name().c_str());
snprintf(temp_buf, temp_buf_length, "%f", pm->user_min());
xml_grandchild_node = xmlNewChild(xml_child_node, NULL, (xmlChar*)"user-min", (xmlChar*)temp_buf);
snprintf(temp_buf, temp_buf_length, "%f", pm->user_max());
xml_grandchild_node = xmlNewChild(xml_child_node, NULL, (xmlChar*)"user-max", (xmlChar*)temp_buf);
}
}
}
}
// Save connections
const list<CountedPtr<ConnectionModel> >& cl = patch_model->connections();
const ConnectionModel* c = NULL;
for (list<CountedPtr<ConnectionModel> >::const_iterator i = cl.begin(); i != cl.end(); ++i) {
c = (*i).get();
xml_node = xmlNewChild(xml_root_node, NULL, (xmlChar*)"connection", NULL);
xml_child_node = xmlNewChild(xml_node, NULL, (xmlChar*)"source-node",
(xmlChar*)c->src_port_path().parent().name().c_str());
xml_child_node = xmlNewChild(xml_node, NULL, (xmlChar*)"source-port",
(xmlChar*)c->src_port_path().name().c_str());
xml_child_node = xmlNewChild(xml_node, NULL, (xmlChar*)"destination-node",
(xmlChar*)c->dst_port_path().parent().name().c_str());
xml_child_node = xmlNewChild(xml_node, NULL, (xmlChar*)"destination-port",
(xmlChar*)c->dst_port_path().name().c_str());
}
// Save control values (ie presets eventually, right now just current control vals)
xmlNodePtr xml_preset_node = xmlNewChild(xml_root_node, NULL, (xmlChar*)"preset", NULL);
xml_node = xmlNewChild(xml_preset_node, NULL, (xmlChar*)"name", (xmlChar*)"default");
PortModel* pm = NULL;
// Save node port controls
for (NodeModelMap::const_iterator n = patch_model->nodes().begin(); n != patch_model->nodes().end(); ++n) {
nm = n->second.get();
for (PortModelList::const_iterator p = nm->ports().begin(); p != nm->ports().end(); ++p) {
pm = (*p).get();
if (pm->is_input() && pm->is_control()) {
float val = pm->value();
xml_node = xmlNewChild(xml_preset_node, NULL, (xmlChar*)"control", NULL);
xml_child_node = xmlNewChild(xml_node, NULL, (xmlChar*)"node-name",
(xmlChar*)nm->name().c_str());
xml_child_node = xmlNewChild(xml_node, NULL, (xmlChar*)"port-name",
(xmlChar*)pm->path().name().c_str());
snprintf(temp_buf, temp_buf_length, "%f", val);
xml_child_node = xmlNewChild(xml_node, NULL, (xmlChar*)"value",
(xmlChar*)temp_buf);
}
}
}
// Save patch port controls
for (PortModelList::const_iterator p = patch_model->ports().begin();
p != patch_model->ports().end(); ++p) {
pm = (*p).get();
if (pm->is_input() && pm->is_control()) {
float val = pm->value();
xml_node = xmlNewChild(xml_preset_node, NULL, (xmlChar*)"control", NULL);
xml_child_node = xmlNewChild(xml_node, NULL, (xmlChar*)"port-name",
(xmlChar*)pm->path().name().c_str());
snprintf(temp_buf, temp_buf_length, "%f", val);
xml_child_node = xmlNewChild(xml_node, NULL, (xmlChar*)"value",
(xmlChar*)temp_buf);
}
}
xmlSaveFormatFile(filename.c_str(), xml_doc, 1); // 1 == pretty print
xmlFreeDoc(xml_doc);
xmlCleanupParser();
}
/** Load a patch in to the engine (and client) from a patch file.
*
* The name and poly from the passed PatchModel are used. If the name is
* the empty string, the name will be loaded from the file. If the poly
* is 0, it will be loaded from file. Otherwise the given values will
* be used.
*
* If @a wait is set, the patch will be checked for existence before
* loading everything in to it (to prevent messing up existing patches
* that exist at the path this one should load as).
*
* If the @a existing parameter is true, the patch will be loaded into a
* currently existing patch (ie a merging will take place). Errors will
* result if Nodes of conflicting names exist.
*
* Returns the path of the newly created patch.
*/
string
PatchLibrarian::load_patch(PatchModel* pm, bool wait, bool existing)
{
string filename = pm->filename();
string additional_path = (pm->parent() == NULL)
? "" : ((PatchModel*)pm->parent())->filename();
additional_path = additional_path.substr(0, additional_path.find_last_of("/"));
filename = find_file(pm->filename(), additional_path);
size_t poly = pm->poly();
//cerr << "[PatchLibrarian] Loading patch " << filename << "" << endl;
const size_t temp_buf_length = 255;
char temp_buf[temp_buf_length];
bool load_name = (pm->path() == "");
bool load_poly = (poly == 0);
xmlDocPtr doc = xmlParseFile(filename.c_str());
if (doc == NULL ) {
cerr << "Unable to parse patch file." << endl;
return "";
}
xmlNodePtr cur = xmlDocGetRootElement(doc);
if (cur == NULL) {
cerr << "Empty document." << endl;
xmlFreeDoc(doc);
return "";
}
if (xmlStrcmp(cur->name, (const xmlChar*) "patch")) {
cerr << "File is not an Om patch file, root node != patch" << endl;
xmlFreeDoc(doc);
return "";
}
xmlChar* key = NULL;
cur = cur->xmlChildrenNode;
string path;
pm->filename(filename);
// Load Patch attributes
while (cur != NULL) {
key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
if ((!xmlStrcmp(cur->name, (const xmlChar*)"name"))) {
if (load_name) {
assert(key != NULL);
if (pm->parent() != NULL) {
path = pm->parent()->base_path() + string((char*)key);
} else {
path = string("/") + string((char*)key);
}
assert(path.find("//") == string::npos);
assert(path.length() > 0);
pm->set_path(path);
}
} else if ((!xmlStrcmp(cur->name, (const xmlChar*)"polyphony"))) {
if (load_poly) {
poly = atoi((char*)key);
pm->poly(poly);
}
} else if (xmlStrcmp(cur->name, (const xmlChar*)"connection")
&& xmlStrcmp(cur->name, (const xmlChar*)"node")
&& xmlStrcmp(cur->name, (const xmlChar*)"subpatch")
&& xmlStrcmp(cur->name, (const xmlChar*)"filename")
&& xmlStrcmp(cur->name, (const xmlChar*)"preset")) {
// Don't know what this tag is, add it as metadata without overwriting
// (so caller can set arbitrary parameters which will be preserved)
if (key != NULL)
if (pm->get_metadata((const char*)cur->name) == "")
pm->set_metadata((const char*)cur->name, (const char*)key);
}
xmlFree(key);
key = NULL; // Avoid a (possible?) double free
cur = cur->next;
}
if (poly == 0) poly = 1;
if (!existing) {
// Wait until the patch is created or the node creations may fail
if (wait) {
//int id = m_osc_model_engine_interface->get_next_request_id();
//m_osc_model_engine_interface->set_wait_response_id(id);
m_osc_model_engine_interface->create_patch_from_model(pm);
//bool succeeded = m_osc_model_engine_interface->wait_for_response();
// If creating the patch failed, bail out so we don't load all these nodes
// into an already existing patch
/*if (!succeeded) {
cerr << "[PatchLibrarian] Patch load failed (patch already exists)" << endl;
return "";
}*/ // FIXME
} else {
m_osc_model_engine_interface->create_patch_from_model(pm);
}
}
// Set the filename metadata. (FIXME)
// This isn't so good, considering multiple clients on multiple machines, and
// absolute filesystem paths obviously aren't going to be correct. But for now
// this is all I can figure out to have Save/Save As work properly for subpatches
m_osc_model_engine_interface->set_metadata(pm->path(), "filename", pm->filename());
// Load nodes
NodeModel* nm = NULL;
cur = xmlDocGetRootElement(doc)->xmlChildrenNode;
while (cur != NULL) {
if ((!xmlStrcmp(cur->name, (const xmlChar*)"node"))) {
nm = parse_node(pm, doc, cur);
if (nm != NULL) {
m_osc_model_engine_interface->create_node_from_model(nm);
m_osc_model_engine_interface->set_all_metadata(nm);
for (PortModelList::const_iterator j = nm->ports().begin(); j != nm->ports().end(); ++j) {
// FIXME: ew
snprintf(temp_buf, temp_buf_length, "%f", (*j)->user_min());
m_osc_model_engine_interface->set_metadata((*j)->path(), "user-min", temp_buf);
snprintf(temp_buf, temp_buf_length, "%f", (*j)->user_max());
m_osc_model_engine_interface->set_metadata((*j)->path(), "user-max", temp_buf);
}
nm = NULL;
usleep(10000);
}
}
cur = cur->next;
}
// Load subpatches
cur = xmlDocGetRootElement(doc)->xmlChildrenNode;
while (cur != NULL) {
if ((!xmlStrcmp(cur->name, (const xmlChar*)"subpatch"))) {
load_subpatch(pm, doc, cur);
}
cur = cur->next;
}
// Load connections
ConnectionModel* cm = NULL;
cur = xmlDocGetRootElement(doc)->xmlChildrenNode;
while (cur != NULL) {
if ((!xmlStrcmp(cur->name, (const xmlChar*)"connection"))) {
cm = parse_connection(pm, doc, cur);
if (cm != NULL) {
m_osc_model_engine_interface->connect(cm->src_port_path(), cm->dst_port_path());
usleep(1000);
}
}
cur = cur->next;
}
// Load presets (control values)
PresetModel* preset_model = NULL;
cur = xmlDocGetRootElement(doc)->xmlChildrenNode;
while (cur != NULL) {
if ((!xmlStrcmp(cur->name, (const xmlChar*)"preset"))) {
preset_model = parse_preset(pm, doc, cur);
assert(preset_model != NULL);
if (preset_model->name() == "default")
m_osc_model_engine_interface->set_preset(pm->path(), preset_model);
}
cur = cur->next;
}
xmlFreeDoc(doc);
xmlCleanupParser();
m_osc_model_engine_interface->set_all_metadata(pm);
if (!existing)
m_osc_model_engine_interface->enable_patch(pm->path());
string ret = pm->path();
return ret;
}
/** Build a NodeModel given a pointer to a Node in a patch file.
*/
NodeModel*
PatchLibrarian::parse_node(const PatchModel* parent, xmlDocPtr doc, const xmlNodePtr node)
{
PluginModel* plugin = new PluginModel();
NodeModel* nm = new NodeModel(plugin, "/UNINITIALIZED"); // FIXME: ew
xmlChar* key;
xmlNodePtr cur = node->xmlChildrenNode;
bool found_name = false;
while (cur != NULL) {
key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
if ((!xmlStrcmp(cur->name, (const xmlChar*)"name"))) {
nm->set_path(parent->base_path() + (char*)key);
found_name = true;
} else if ((!xmlStrcmp(cur->name, (const xmlChar*)"polyphonic"))) {
nm->polyphonic(!strcmp((char*)key, "true"));
} else if ((!xmlStrcmp(cur->name, (const xmlChar*)"type"))) {
plugin->set_type((const char*)key);
} else if ((!xmlStrcmp(cur->name, (const xmlChar*)"library-name"))) {
plugin->lib_name((char*)key);
} else if ((!xmlStrcmp(cur->name, (const xmlChar*)"plugin-label"))) {
plugin->plug_label((char*)key);
} else if ((!xmlStrcmp(cur->name, (const xmlChar*)"plugin-uri"))) {
plugin->uri((char*)key);
} else if ((!xmlStrcmp(cur->name, (const xmlChar*)"port"))) {
xmlNodePtr child = cur->xmlChildrenNode;
string path;
float user_min = 0.0;
float user_max = 0.0;
while (child != NULL) {
key = xmlNodeListGetString(doc, child->xmlChildrenNode, 1);
if ((!xmlStrcmp(child->name, (const xmlChar*)"name"))) {
path = nm->base_path() + (char*)key;
} else if ((!xmlStrcmp(child->name, (const xmlChar*)"user-min"))) {
user_min = atof((char*)key);
} else if ((!xmlStrcmp(child->name, (const xmlChar*)"user-max"))) {
user_max = atof((char*)key);
}
xmlFree(key);
key = NULL; // Avoid a (possible?) double free
child = child->next;
}
// FIXME: nasty assumptions
PortModel* pm = new PortModel(path,
PortModel::CONTROL, PortModel::INPUT, PortModel::NONE,
0.0, user_min, user_max);
nm->add_port(pm);
// DSSI hacks. Stored in the patch files as special elements, but sent to
// the engine as normal metadata with specially formatted key/values. Not
// sure if this is the best way to go about this, but it's the least damaging
// right now
} else if ((!xmlStrcmp(cur->name, (const xmlChar*)"dssi-program"))) {
xmlNodePtr child = cur->xmlChildrenNode;
string bank;
string program;
while (child != NULL) {
key = xmlNodeListGetString(doc, child->xmlChildrenNode, 1);
if ((!xmlStrcmp(child->name, (const xmlChar*)"bank"))) {
bank = (char*)key;
} else if ((!xmlStrcmp(child->name, (const xmlChar*)"program"))) {
program = (char*)key;
}
xmlFree(key);
key = NULL; // Avoid a (possible?) double free
child = child->next;
}
nm->set_metadata("dssi-program", bank +"/"+ program);
} else if ((!xmlStrcmp(cur->name, (const xmlChar*)"dssi-configure"))) {
xmlNodePtr child = cur->xmlChildrenNode;
string dssi_key;
string dssi_value;
while (child != NULL) {
key = xmlNodeListGetString(doc, child->xmlChildrenNode, 1);
if ((!xmlStrcmp(child->name, (const xmlChar*)"key"))) {
dssi_key = (char*)key;
} else if ((!xmlStrcmp(child->name, (const xmlChar*)"value"))) {
dssi_value = (char*)key;
}
xmlFree(key);
key = NULL; // Avoid a (possible?) double free
child = child->next;
}
nm->set_metadata(string("dssi-configure--").append(dssi_key), dssi_value);
} else { // Don't know what this tag is, add it as metadata
if (key != NULL)
nm->set_metadata((const char*)cur->name, (const char*)key);
}
xmlFree(key);
key = NULL;
cur = cur->next;
}
if (nm->path() == "") {
cerr << "[PatchLibrarian] Malformed patch file (node tag has empty children)" << endl;
cerr << "[PatchLibrarian] Node ignored." << endl;
delete nm;
return NULL;
} else {
//nm->plugin(plugin);
return nm;
}
}
void
PatchLibrarian::load_subpatch(PatchModel* parent, xmlDocPtr doc, const xmlNodePtr subpatch)
{
xmlChar *key;
xmlNodePtr cur = subpatch->xmlChildrenNode;
PatchModel* pm = new PatchModel("/UNINITIALIZED", 1); // FIXME: ew
while (cur != NULL) {
key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
if ((!xmlStrcmp(cur->name, (const xmlChar*)"name"))) {
if (parent == NULL)
pm->set_path(string("/") + (const char*)key);
else
pm->set_path(parent->base_path() + (const char*)key);
} else if ((!xmlStrcmp(cur->name, (const xmlChar*)"polyphony"))) {
pm->poly(atoi((const char*)key));
} else if ((!xmlStrcmp(cur->name, (const xmlChar*)"filename"))) {
pm->filename((const char*)key);
} else { // Don't know what this tag is, add it as metadata
if (key != NULL && strlen((const char*)key) > 0)
pm->set_metadata((const char*)cur->name, (const char*)key);
}
xmlFree(key);
key = NULL;
cur = cur->next;
}
// This needs to be done after setting the path above, to prevent
// NodeModel::set_path from calling it's parent's rename_node with
// an invalid (nonexistant) name
pm->set_parent(parent);
load_patch(pm, false);
}
/** Build a ConnectionModel given a pointer to a connection in a patch file.
*/
ConnectionModel*
PatchLibrarian::parse_connection(const PatchModel* parent, xmlDocPtr doc, const xmlNodePtr node)
{
//cerr << "[PatchLibrarian] Parsing connection..." << endl;
xmlChar *key;
xmlNodePtr cur = node->xmlChildrenNode;
string source_node, source_port, dest_node, dest_port;
while (cur != NULL) {
key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
if ((!xmlStrcmp(cur->name, (const xmlChar*)"source-node"))) {
source_node = (char*)key;
} else if ((!xmlStrcmp(cur->name, (const xmlChar*)"source-port"))) {
source_port = (char*)key;
} else if ((!xmlStrcmp(cur->name, (const xmlChar*)"destination-node"))) {
dest_node = (char*)key;
} else if ((!xmlStrcmp(cur->name, (const xmlChar*)"destination-port"))) {
dest_port = (char*)key;
}
xmlFree(key);
key = NULL; // Avoid a (possible?) double free
cur = cur->next;
}
if (source_node == "" || source_port == "" || dest_node == "" || dest_port == "") {
cerr << "[PatchLibrarian] Malformed patch file (connection tag has empty children)" << endl;
cerr << "[PatchLibrarian] Connection ignored." << endl;
return NULL;
}
// FIXME: temporary compatibility, remove any slashes from port names
// remove this soon once patches have migrated
string::size_type slash_index;
while ((slash_index = source_port.find("/")) != string::npos)
source_port[slash_index] = '-';
while ((slash_index = dest_port.find("/")) != string::npos)
dest_port[slash_index] = '-';
ConnectionModel* cm = new ConnectionModel(parent->base_path() + source_node +"/"+ source_port,
parent->base_path() + dest_node +"/"+ dest_port);
return cm;
}
/** Build a PresetModel given a pointer to a preset in a patch file.
*/
PresetModel*
PatchLibrarian::parse_preset(const PatchModel* patch, xmlDocPtr doc, const xmlNodePtr node)
{
xmlNodePtr cur = node->xmlChildrenNode;
xmlChar* key;
PresetModel* pm = new PresetModel(patch->base_path());
while (cur != NULL) {
key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
if ((!xmlStrcmp(cur->name, (const xmlChar*)"name"))) {
assert(key != NULL);
pm->name((char*)key);
} else if ((!xmlStrcmp(cur->name, (const xmlChar*)"control"))) {
xmlNodePtr child = cur->xmlChildrenNode;
string node_name = "", port_name = "";
float val = 0.0;
while (child != NULL) {
key = xmlNodeListGetString(doc, child->xmlChildrenNode, 1);
if ((!xmlStrcmp(child->name, (const xmlChar*)"node-name"))) {
node_name = (char*)key;
} else if ((!xmlStrcmp(child->name, (const xmlChar*)"port-name"))) {
port_name = (char*)key;
} else if ((!xmlStrcmp(child->name, (const xmlChar*)"value"))) {
val = atof((char*)key);
}
xmlFree(key);
key = NULL; // Avoid a (possible?) double free
child = child->next;
}
if (port_name == "") {
string msg = "Unable to parse control in patch file ( node = ";
msg.append(node_name).append(", port = ").append(port_name).append(")");
cerr << "ERROR: " << msg << endl;
//m_client_hooks->error(msg);
} else {
// FIXME: temporary compatibility, remove any slashes from port name
// remove this soon once patches have migrated
string::size_type slash_index;
while ((slash_index = port_name.find("/")) != string::npos)
port_name[slash_index] = '-';
pm->add_control(node_name, port_name, val);
}
}
xmlFree(key);
key = NULL;
cur = cur->next;
}
if (pm->name() == "") {
cerr << "Preset in patch file has no name." << endl;
//m_client_hooks->error("Preset in patch file has no name.");
pm->name("Unnamed");
}
return pm;
}
} // namespace LibOmClient
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