1 files changed, 201 insertions, 0 deletions
diff --git a/src/engine/events/DestroyEvent.cpp b/src/engine/events/DestroyEvent.cpp
new file mode 100644
index 00000000..07770c0a
--- /dev/null
+++ b/src/engine/events/DestroyEvent.cpp
@@ -0,0 +1,201 @@
+/* This file is part of Ingen.
+ * Copyright (C) 2007 Dave Robillard <http://drobilla.net>
+ * 
+ * Ingen 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.
+ * 
+ * Ingen 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.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <raul/Maid.hpp>
+#include <raul/Path.hpp>
+#include "DestroyEvent.hpp"
+#include "Responder.hpp"
+#include "Engine.hpp"
+#include "PatchImpl.hpp"
+#include "NodeBase.hpp"
+#include "PluginImpl.hpp"
+#include "AudioDriver.hpp"
+#include "MidiDriver.hpp"
+#include "DisconnectAllEvent.hpp"
+#include "ClientBroadcaster.hpp"
+#include "EngineStore.hpp"
+#include "QueuedEventSource.hpp"
+#include "PortImpl.hpp"
+
+namespace Ingen {
+
+
+DestroyEvent::DestroyEvent(Engine& engine, SharedPtr<Responder> responder, FrameTime time, QueuedEventSource* source, const string& path, bool block)
+	: QueuedEvent(engine, responder, time, source, source)
+	, _path(path)
+	, _store_iterator(engine.engine_store()->end())
+	, _driver_port(NULL)
+	, _patch_node_listnode(NULL)
+	, _patch_port_listnode(NULL)
+	, _ports_array(NULL)
+	, _compiled_patch(NULL)
+	, _disconnect_event(NULL)
+{
+	assert(_source);
+}
+
+
+DestroyEvent::~DestroyEvent()
+{
+	delete _disconnect_event;
+}
+
+
+void
+DestroyEvent::pre_process()
+{
+	_store_iterator = _engine.engine_store()->find(_path);
+
+	if (_store_iterator != _engine.engine_store()->end())  {
+		_node = PtrCast<NodeImpl>(_store_iterator->second);
+
+		if (!_node)
+			_port = PtrCast<PortImpl>(_store_iterator->second);
+	}
+			
+	if (_store_iterator != _engine.engine_store()->end()) {
+		_removed_table = _engine.engine_store()->remove(_store_iterator);
+	}
+
+	if (_node != NULL && _path != "/") {
+		assert(_node->parent_patch());
+		_patch_node_listnode = _node->parent_patch()->remove_node(_path.name());
+		if (_patch_node_listnode) {
+			assert(_patch_node_listnode->elem() == _node.get());
+			
+			_disconnect_event = new DisconnectAllEvent(_engine, _node->parent_patch(), _node.get());
+			_disconnect_event->pre_process();
+			
+			if (_node->parent_patch()->enabled()) {
+				// FIXME: is this called multiple times?
+				_compiled_patch = _node->parent_patch()->compile();
+#ifndef NDEBUG
+				// Be sure node is removed from process order, so it can be destroyed
+				for (size_t i=0; i < _compiled_patch->size(); ++i) {
+					assert(_compiled_patch->at(i).node() != _node.get());
+					// FIXME: check providers/dependants too
+				}
+#endif
+			}
+		}
+	} else if (_port) {
+		assert(_port->parent_patch());
+		_patch_port_listnode = _port->parent_patch()->remove_port(_path.name());
+		if (_patch_port_listnode) {
+			assert(_patch_port_listnode->elem() == _port.get());
+			
+			_disconnect_event = new DisconnectAllEvent(_engine, _port->parent_patch(), _port.get());
+			_disconnect_event->pre_process();
+			
+			if (_port->parent_patch()->enabled()) {
+				// FIXME: is this called multiple times?
+				_compiled_patch = _port->parent_patch()->compile();
+				_ports_array   = _port->parent_patch()->build_ports_array();
+				assert(_ports_array->size() == _port->parent_patch()->num_ports());
+			}
+		}
+
+	}
+
+	QueuedEvent::pre_process();
+}
+
+
+void
+DestroyEvent::execute(ProcessContext& context)
+{
+	QueuedEvent::execute(context);
+
+	if (_patch_node_listnode) {
+		assert(_node);
+
+		if (_disconnect_event)
+			_disconnect_event->execute(context);
+		
+		if (_node->parent_patch()->compiled_patch())
+			_engine.maid()->push(_node->parent_patch()->compiled_patch());
+		_node->parent_patch()->compiled_patch(_compiled_patch);
+	
+	} else if (_patch_port_listnode) {
+		assert(_port);
+
+		if (_disconnect_event)
+			_disconnect_event->execute(context);
+		
+		if (_port->parent_patch()->compiled_patch())
+			_engine.maid()->push(_port->parent_patch()->compiled_patch());
+		
+		_port->parent_patch()->compiled_patch(_compiled_patch);
+		
+		if (_port->parent_patch()->external_ports())
+			_engine.maid()->push(_port->parent_patch()->external_ports());
+		
+		_port->parent_patch()->external_ports(_ports_array);
+		
+		if ( ! _port->parent_patch()->parent()) {
+			if (_port->type() == DataType::AUDIO)
+				_driver_port = _engine.audio_driver()->remove_port(_port->path());
+			else if (_port->type() == DataType::EVENT)
+				_driver_port = _engine.midi_driver()->remove_port(_port->path());
+		}
+	}
+	
+	if (_source)
+		_source->unblock();
+}
+
+
+void
+DestroyEvent::post_process()
+{
+	if (!_node && !_port) {
+		if (_path == "/") {
+			_responder->respond_error("You can not destroy the root patch (/)");
+		} else {
+			string msg = string("Could not find object ") + _path + " to destroy";
+			_responder->respond_error(msg);
+		}
+	}
+
+	if (_patch_node_listnode) {	
+		assert(_node);
+		_node->deactivate();
+		_responder->respond_ok();
+		_engine.broadcaster()->bundle_begin();
+		if (_disconnect_event)
+			_disconnect_event->post_process();
+		_engine.broadcaster()->send_destroyed(_path);
+		_engine.broadcaster()->bundle_end();
+		_engine.maid()->push(_patch_node_listnode);
+	} else if (_patch_port_listnode) {	
+		assert(_port);
+		_responder->respond_ok();
+		_engine.broadcaster()->bundle_begin();
+		if (_disconnect_event)
+			_disconnect_event->post_process();
+		_engine.broadcaster()->send_destroyed(_path);
+		_engine.broadcaster()->bundle_end();
+		_engine.maid()->push(_patch_port_listnode);
+	} else {
+		_responder->respond_error("Unable to destroy object");
+	}
+
+	delete _driver_port;
+}
+
+
+} // namespace Ingen