Added AddPortEvent

git-svn-id: http://svn.drobilla.net/lad/grauph@65 a436a847-0d15-0410-975c-d299462d15a1

1 files changed, 119 insertions, 0 deletions

diff --git a/src/libs/engine/events/AddPortEvent.cpp b/src/libs/engine/events/AddPortEvent.cpp
new file mode 100644
index 00000000..0318c5c0
--- /dev/null
+++ b/src/libs/engine/events/AddPortEvent.cpp
@@ -0,0 +1,119 @@
+/* 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 "AddPortEvent.h"
+#include "Responder.h"
+#include "Patch.h"
+#include "Tree.h"
+#include "Plugin.h"
+#include "Om.h"
+#include "OmApp.h"
+#include "Patch.h"
+#include "Maid.h"
+#include "util/Path.h"
+#include "ObjectStore.h"
+#include "ClientBroadcaster.h"
+#include "util/Path.h"
+#include "Port.h"
+#include "AudioDriver.h"
+#include "List.h"
+
+namespace Om {
+
+
+AddPortEvent::AddPortEvent(CountedPtr<Responder> responder, const string& path, const string& type, bool is_output)
+: QueuedEvent(responder),
+  _path(path),
+  _type(type),
+  _is_output(is_output),
+  _data_type(DataType::UNKNOWN),
+  _patch(NULL),
+  _port(NULL),
+  _succeeded(true)
+{
+	string type_str;
+	if (type == "CONTROL" || type == "AUDIO")
+		_data_type = DataType::FLOAT;
+	else if (type == "MIDI")
+		_data_type = DataType::MIDI;
+}
+
+
+AddPortEvent::~AddPortEvent()
+{
+}
+
+
+void
+AddPortEvent::pre_process()
+{
+	if (om->object_store()->find(_path) != NULL) {
+		QueuedEvent::pre_process();
+		return;
+	}
+
+	_patch = om->object_store()->find_patch(_path.parent());
+
+	if (_patch != NULL) {
+		assert(_patch->path() == _path.parent());
+		
+		size_t buffer_size = 1;
+		if (_type == "AUDIO" || _type == "MIDI")
+			buffer_size = om->audio_driver()->buffer_size();
+	
+		_port = _patch->create_port(_path.name(), _data_type, buffer_size, _is_output);
+		if (_port) {
+			if (_is_output)
+				_patch->add_output(new ListNode<Port*>(_port));
+			else
+				_patch->add_input(new ListNode<Port*>(_port));
+			_ports_array = new Array<Port*>(_patch->num_ports() + 1, _patch->external_ports());
+			_ports_array->at(_patch->num_ports()) = _port;
+			om->object_store()->add(_port);
+		}
+	}
+	QueuedEvent::pre_process();
+}
+
+
+void
+AddPortEvent::execute(samplecount offset)
+{
+	QueuedEvent::execute(offset);
+
+	if (_port) {
+		om->maid()->push(_patch->external_ports());
+		//_patch->add_port(_port);
+		_patch->external_ports(_ports_array);
+	}
+}
+
+
+void
+AddPortEvent::post_process()
+{
+	if (!_succeeded) {
+		const string msg = string("Could not create port - ").append(_path);// + " already exists.";
+		m_responder->respond_error(msg);
+	} else {
+		m_responder->respond_ok();
+		om->client_broadcaster()->send_port(_port);
+	}
+}
+
+
+} // namespace Om
+