From 98fe0e7056e6697396249531785d3899f94d79be Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Sat, 10 Jun 2006 01:52:02 +0000
Subject: More juggling

git-svn-id: http://svn.drobilla.net/lad/grauph@15 a436a847-0d15-0410-975c-d299462d15a1
---
 src/libs/engine/events/DisconnectNodeEvent.cpp | 140 +++++++++++++++++++++++++
 1 file changed, 140 insertions(+)
 create mode 100644 src/libs/engine/events/DisconnectNodeEvent.cpp

(limited to 'src/libs/engine/events/DisconnectNodeEvent.cpp')

diff --git a/src/libs/engine/events/DisconnectNodeEvent.cpp b/src/libs/engine/events/DisconnectNodeEvent.cpp
new file mode 100644
index 00000000..17367dd4
--- /dev/null
+++ b/src/libs/engine/events/DisconnectNodeEvent.cpp
@@ -0,0 +1,140 @@
+/* This file is part of Om.  Copyright (C) 2006 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 "DisconnectNodeEvent.h"
+#include <iostream>
+#include "Responder.h"
+#include "Om.h"
+#include "OmApp.h"
+#include "Maid.h"
+#include "List.h"
+#include "Node.h"
+#include "ConnectionBase.h"
+#include "DisconnectionEvent.h"
+#include "Port.h"
+#include "Array.h"
+#include "InputPort.h"
+#include "OutputPort.h"
+#include "Patch.h"
+#include "ClientBroadcaster.h"
+#include "util.h"
+#include "ObjectStore.h"
+#include "util/Path.h"
+
+using std::cerr; using std::endl;
+
+namespace Om {
+
+
+DisconnectNodeEvent::DisconnectNodeEvent(CountedPtr<Responder> responder, const string& node_path)
+: QueuedEvent(responder),
+  m_node_path(node_path),
+  m_patch(NULL),
+  m_node(NULL),
+  m_succeeded(true),
+  m_lookup(true)
+{
+}
+
+
+/** Internal version, disconnects parent port as well (in the case of InputNode, etc).
+ */
+DisconnectNodeEvent::DisconnectNodeEvent(Node* node)
+: QueuedEvent(),
+  m_node_path(""),
+  m_patch(node->parent_patch()),
+  m_node(node),
+  m_succeeded(true),
+  m_lookup(false)
+{
+}
+
+
+DisconnectNodeEvent::~DisconnectNodeEvent()
+{
+	for (List<DisconnectionEvent*>::iterator i = m_disconnection_events.begin(); i != m_disconnection_events.end(); ++i)
+		delete (*i);
+}
+
+
+void
+DisconnectNodeEvent::pre_process()
+{
+	typedef List<Connection*>::const_iterator ConnectionListIterator;
+	
+	// cerr << "Preparing disconnection event...\n";
+	
+	if (m_lookup) {
+		m_patch = om->object_store()->find_patch(m_node_path.parent());
+	
+		if (m_patch == NULL) {
+			m_succeeded = false;
+			QueuedEvent::pre_process();
+			return;
+		}
+		
+		m_node = om->object_store()->find_node(m_node_path);
+		
+		if (m_node == NULL) {
+			m_succeeded = false;
+			QueuedEvent::pre_process();
+			return;
+		}
+	}
+
+	Connection* c = NULL;
+	for (ConnectionListIterator i = m_patch->connections().begin(); i != m_patch->connections().end(); ++i) {
+		c = (*i);
+		if ((c->src_port()->parent_node() == m_node || c->dst_port()->parent_node() == m_node) && !c->pending_disconnection()) {
+			DisconnectionEvent* ev = new DisconnectionEvent(CountedPtr<Responder>(new Responder()), c->src_port(), c->dst_port());
+			ev->pre_process();
+			m_disconnection_events.push_back(new ListNode<DisconnectionEvent*>(ev));
+			c->pending_disconnection(true);
+		}
+	}
+	
+	m_succeeded = true;
+	QueuedEvent::pre_process();	
+}
+
+
+void
+DisconnectNodeEvent::execute(samplecount offset)
+{
+	if (m_succeeded) {
+		for (List<DisconnectionEvent*>::iterator i = m_disconnection_events.begin(); i != m_disconnection_events.end(); ++i)
+			(*i)->execute(offset);
+	}
+	
+	QueuedEvent::execute(offset);
+}
+
+
+void
+DisconnectNodeEvent::post_process()
+{
+	if (m_succeeded) {
+		m_responder->respond_ok();
+		for (List<DisconnectionEvent*>::iterator i = m_disconnection_events.begin(); i != m_disconnection_events.end(); ++i)
+			(*i)->post_process();
+	} else {
+		m_responder->respond_error("Unable to disconnect all ports.");
+	}
+}
+
+
+} // namespace Om
+
-- 
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