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-rw-r--r--src/engine/ClearPatchEvent.cpp114
1 files changed, 114 insertions, 0 deletions
diff --git a/src/engine/ClearPatchEvent.cpp b/src/engine/ClearPatchEvent.cpp
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+/* 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 "ClearPatchEvent.h"
+#include "Responder.h"
+#include "Om.h"
+#include "OmApp.h"
+#include "Patch.h"
+#include "ClientBroadcaster.h"
+#include "util.h"
+#include "ObjectStore.h"
+#include "Port.h"
+#include "Maid.h"
+#include "Node.h"
+#include "Connection.h"
+#include "QueuedEventSource.h"
+
+namespace Om {
+
+
+ClearPatchEvent::ClearPatchEvent(CountedPtr<Responder> responder, const string& patch_path)
+: QueuedEvent(responder, true),
+ m_patch_path(patch_path),
+ m_patch(NULL),
+ m_process(false)
+{
+}
+
+
+void
+ClearPatchEvent::pre_process()
+{
+ m_patch = om->object_store()->find_patch(m_patch_path);
+
+ if (m_patch != NULL) {
+
+ m_process = m_patch->process();
+
+ for (List<Node*>::const_iterator i = m_patch->nodes().begin(); i != m_patch->nodes().end(); ++i)
+ (*i)->remove_from_store();
+ }
+
+ QueuedEvent::pre_process();
+}
+
+
+void
+ClearPatchEvent::execute(samplecount offset)
+{
+ if (m_patch != NULL) {
+ m_patch->process(false);
+
+ for (List<Node*>::const_iterator i = m_patch->nodes().begin(); i != m_patch->nodes().end(); ++i)
+ (*i)->remove_from_patch();
+
+ if (m_patch->process_order() != NULL) {
+ om->maid()->push(m_patch->process_order());
+ m_patch->process_order(NULL);
+ }
+ }
+
+ QueuedEvent::execute(offset);
+}
+
+
+void
+ClearPatchEvent::post_process()
+{
+ if (m_patch != NULL) {
+ // Delete all nodes
+ for (List<Node*>::iterator i = m_patch->nodes().begin(); i != m_patch->nodes().end(); ++i) {
+ (*i)->deactivate();
+ delete *i;
+ }
+ m_patch->nodes().clear();
+
+ // Delete all connections
+ for (List<Connection*>::iterator i = m_patch->connections().begin(); i != m_patch->connections().end(); ++i)
+ delete *i;
+ m_patch->connections().clear();
+
+ // Restore patch's run state
+ m_patch->process(m_process);
+
+ // Make sure everything's sane
+ assert(m_patch->nodes().size() == 0);
+ assert(m_patch->connections().size() == 0);
+
+ // Reply
+ m_responder->respond_ok();
+ om->client_broadcaster()->send_patch_cleared(m_patch_path);
+ } else {
+ m_responder->respond_error(string("Patch ") + m_patch_path + " not found");
+ }
+
+ m_source->unblock();
+}
+
+
+} // namespace Om
+