Added Om aka Graph aka god knows what

git-svn-id: http://svn.drobilla.net/lad/grauph@9 a436a847-0d15-0410-975c-d299462d15a1

1 files changed, 150 insertions, 0 deletions

diff --git a/src/engine/CreatePatchEvent.cpp b/src/engine/CreatePatchEvent.cpp
new file mode 100644
index 00000000..9f0ae7f2
--- /dev/null
+++ b/src/engine/CreatePatchEvent.cpp
@@ -0,0 +1,150 @@
+/* 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 "CreatePatchEvent.h"
+#include "Responder.h"
+#include "Patch.h"
+#include "Node.h"
+#include "Tree.h"
+#include "Plugin.h"
+#include "Om.h"
+#include "OmApp.h"
+#include "Maid.h"
+#include "ClientBroadcaster.h"
+#include "AudioDriver.h"
+#include "util/Path.h"
+#include "ObjectStore.h"
+
+namespace Om {
+
+
+CreatePatchEvent::CreatePatchEvent(CountedPtr<Responder> responder, const string& path, int poly)
+: QueuedEvent(responder),
+  m_path(path),
+  m_patch(NULL),
+  m_parent(NULL),
+  m_process_order(NULL),
+  m_poly(poly),
+  m_error(NO_ERROR)
+{
+}
+
+
+void
+CreatePatchEvent::pre_process()
+{
+	if (om->object_store()->find(m_path) != NULL) {
+		m_error = OBJECT_EXISTS;
+		QueuedEvent::pre_process();
+		return;
+	}
+
+	if (m_poly < 1) {
+		m_error = INVALID_POLY;
+		QueuedEvent::pre_process();
+		return;
+	}
+	
+	if (m_path != "/") {
+		m_parent = om->object_store()->find_patch(m_path.parent());
+		if (m_parent == NULL) {
+			m_error = PARENT_NOT_FOUND;
+			QueuedEvent::pre_process();
+			return;
+		}
+	}
+	
+	size_t poly = 1;
+	if (m_parent != NULL && m_poly > 1 && m_poly == static_cast<int>(m_parent->internal_poly()))
+		poly = m_poly;
+	
+	m_patch = new Patch(m_path.name(), poly, m_parent, om->audio_driver()->sample_rate(), om->audio_driver()->buffer_size(), m_poly);
+		
+	if (m_parent != NULL) {
+		m_parent->add_node(new ListNode<Node*>(m_patch->as_node()));
+
+		if (m_parent->process())
+			m_process_order = m_parent->build_process_order();
+	}
+	
+	m_patch->activate();
+	
+	// Insert into ObjectStore
+	m_patch->add_to_store();
+	
+	QueuedEvent::pre_process();
+}
+
+
+void
+CreatePatchEvent::execute(samplecount offset)
+{
+	QueuedEvent::execute(offset);
+
+	if (m_patch != NULL) {
+		if (m_parent == NULL) {
+			assert(m_path == "/");
+			assert(m_patch->parent_patch() == NULL);
+			om->audio_driver()->set_root_patch(m_patch);
+		} else {
+			assert(m_parent != NULL);
+			assert(m_path != "/");
+			
+			m_patch->add_to_patch();
+			
+			if (m_parent->process_order() != NULL)
+				om->maid()->push(m_parent->process_order());
+			m_parent->process_order(m_process_order);
+		}
+	}
+}
+
+
+void
+CreatePatchEvent::post_process()
+{
+	if (m_responder.get()) {
+		if (m_error == NO_ERROR) {
+			
+			m_responder->respond_ok();
+			
+			// Don't want to send nodes that have been added since prepare()
+			//om->client_broadcaster()->send_node_creation_messages(m_patch);
+
+			// Patches are always empty on creation, so this is fine
+			om->client_broadcaster()->send_patch(m_patch);
+			
+		} else if (m_error == OBJECT_EXISTS) {
+			string msg = "Unable to create patch: ";
+			msg += m_path += " already exists.";
+			m_responder->respond_error(msg);
+		} else if (m_error == PARENT_NOT_FOUND) {
+			string msg = "Unable to create patch: Parent ";
+			msg += m_path.parent() += " not found.";
+			m_responder->respond_error(msg);
+		} else if (m_error == INVALID_POLY) {
+			string msg = "Unable to create patch ";
+			msg.append(m_path).append(": ").append("Invalid polyphony respondered.");
+			m_responder->respond_error(msg);
+		} else {
+			m_responder->respond_error("Unable to load patch.");
+		}
+	}
+}
+
+
+} // namespace Om
+