1 files changed, 229 insertions, 0 deletions
diff --git a/src/libs/client/PatchModel.cpp b/src/libs/client/PatchModel.cpp
new file mode 100644
index 00000000..829c9ca5
--- /dev/null
+++ b/src/libs/client/PatchModel.cpp
@@ -0,0 +1,229 @@
+/* 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 "PatchModel.h"
+#include "NodeModel.h"
+#include "ConnectionModel.h"
+#include <cassert>
+#include <iostream>
+
+using std::cerr; using std::cout; using std::endl;
+
+namespace LibOmClient {
+
+
+void
+PatchModel::set_path(const Path& new_path)
+{
+	// FIXME: haack
+	if (new_path == "") {
+		m_path = "";
+		return;
+	}
+
+	NodeModel::set_path(new_path);
+	for (NodeModelMap::iterator i = m_nodes.begin(); i != m_nodes.end(); ++i)
+		(*i).second->set_path(m_path +"/"+ (*i).second->name());
+	
+#ifdef DEBUG
+	// Be sure connection paths are updated and sane
+	for (list<ConnectionModel*>::iterator j = m_connections.begin();
+			j != m_connections.end(); ++j) {
+		assert((*j)->src_port_path().parent().parent() == new_path);
+		assert((*j)->src_port_path().parent().parent() == new_path);
+	}
+#endif
+}
+
+
+NodeModel*
+PatchModel::get_node(const string& name)
+{
+	assert(name.find("/") == string::npos);
+	NodeModelMap::iterator i = m_nodes.find(name);
+	return ((i != m_nodes.end()) ? (*i).second : NULL);
+}
+
+
+void
+PatchModel::add_node(NodeModel* nm)
+{
+	assert(nm != NULL);
+	assert(nm->name().find("/") == string::npos);
+	assert(nm->parent() == NULL);
+
+	m_nodes[nm->name()] = nm;
+	nm->set_parent(this);
+}
+
+
+void
+PatchModel::remove_node(const string& name)
+{
+	assert(name.find("/") == string::npos);
+	NodeModelMap::iterator i = m_nodes.find(name);
+	if (i != m_nodes.end()) {
+		delete i->second;
+		m_nodes.erase(i);
+		return;
+	}
+	
+	cerr << "[PatchModel::remove_node] " << m_path << ": failed to find node " << name << endl;
+}
+
+
+void
+PatchModel::clear()
+{
+	for (list<ConnectionModel*>::iterator j = m_connections.begin(); j != m_connections.end(); ++j)
+		delete (*j);
+	
+	for (NodeModelMap::iterator i = m_nodes.begin(); i != m_nodes.end(); ++i) {
+		(*i).second->clear();
+		delete (*i).second;
+	}
+	
+	m_nodes.clear();
+	m_connections.clear();
+
+	NodeModel::clear();
+
+	assert(m_nodes.empty());
+	assert(m_connections.empty());
+	assert(m_ports.empty());
+}
+
+
+/** Updated the map key of the given node.
+ *
+ * The NodeModel must already have it's new path set to @a new_path, or this will
+ * abort with a fatal error.
+ */
+void
+PatchModel::rename_node(const Path& old_path, const Path& new_path)
+{
+	assert(old_path.parent() == path());
+	assert(new_path.parent() == path());
+	
+	NodeModelMap::iterator i = m_nodes.find(old_path.name());
+	NodeModel* nm = NULL;
+	
+	if (i != m_nodes.end()) {
+		nm = (*i).second;
+		for (list<ConnectionModel*>::iterator j = m_connections.begin(); j != m_connections.end(); ++j) {
+			if ((*j)->src_port_path().parent() == old_path)
+				(*j)->src_port_path(new_path.base_path() + (*j)->src_port_path().name());
+			if ((*j)->dst_port_path().parent() == old_path)
+				(*j)->dst_port_path(new_path.base_path() + (*j)->dst_port_path().name());
+		}
+		m_nodes.erase(i);
+		assert(nm->path() == new_path);
+		m_nodes[new_path.name()] = nm;
+		return;
+	}
+	
+	cerr << "[PatchModel::rename_node] " << m_path << ": failed to find node " << old_path << endl;
+}
+
+
+ConnectionModel*
+PatchModel::get_connection(const string& src_port_path, const string& dst_port_path)
+{
+	for (list<ConnectionModel*>::iterator i = m_connections.begin(); i != m_connections.end(); ++i)
+		if ((*i)->src_port_path() == src_port_path && (*i)->dst_port_path() == dst_port_path)
+			return (*i);
+	return NULL;
+}
+
+
+/** Add a connection to this patch.
+ *
+ * Ownership of @a cm is taken, it will be deleted along with this PatchModel.
+ * If @a cm only contains paths (not pointers to the actual ports), the ports
+ * will be found and set.  The ports referred to not existing as children of
+ * this patch is a fatal error.
+ */
+void
+PatchModel::add_connection(ConnectionModel* cm)
+{
+	assert(cm != NULL);
+	assert(cm->src_port_path().parent().parent() == m_path);
+	assert(cm->dst_port_path().parent().parent() == m_path);
+	assert(cm->patch_path() == path());
+	
+	ConnectionModel* existing = get_connection(cm->src_port_path(), cm->dst_port_path());
+
+	if (existing != NULL) {
+		delete cm;
+		return;
+	}
+
+	NodeModel* src_node = get_node(cm->src_port_path().parent().name());
+	PortModel* src_port = (src_node == NULL) ? NULL : src_node->get_port(cm->src_port_path().name());
+	NodeModel* dst_node = get_node(cm->dst_port_path().parent().name());
+	PortModel* dst_port = (dst_node == NULL) ? NULL : dst_node->get_port(cm->dst_port_path().name());
+	
+	assert(src_port != NULL);
+	assert(dst_port != NULL);
+	
+	// Find source port pointer to 'resolve' connection if necessary
+	if (cm->src_port() != NULL)
+		assert(cm->src_port() == src_port);
+	else
+		cm->set_src_port(src_port);
+	
+	// Find dest port pointer to 'resolve' connection if necessary
+	if (cm->dst_port() != NULL)
+		assert(cm->dst_port() == dst_port);
+	else
+		cm->set_dst_port(dst_port);
+	
+	assert(cm->src_port() != NULL);
+	assert(cm->dst_port() != NULL);
+
+	m_connections.push_back(cm);
+}
+
+
+void
+PatchModel::remove_connection(const string& src_port_path, const string& dst_port_path)
+{
+	ConnectionModel* cm = NULL;
+	for (list<ConnectionModel*>::iterator i = m_connections.begin(); i != m_connections.end(); ++i) {
+		cm = (*i);
+		if (cm->src_port_path() == src_port_path && cm->dst_port_path() == dst_port_path) {
+			delete cm;
+			m_connections.erase(i);
+			assert(get_connection(src_port_path, dst_port_path) == NULL); // no duplicates
+			return;
+		}
+	}
+	cerr << "[PatchModel::remove_connection] WARNING: Failed to find connection " <<
+		src_port_path << " -> " << dst_port_path << endl;
+	return;
+}
+
+
+bool
+PatchModel::polyphonic() const
+{
+	return (m_parent == NULL)
+		? (m_poly > 1)
+		: (m_poly > 1) && m_poly == parent_patch()->poly() && m_poly > 1;
+}
+
+
+} // namespace LibOmClient