More juggling

git-svn-id: http://svn.drobilla.net/lad/grauph@15 a436a847-0d15-0410-975c-d299462d15a1

1 files changed, 106 insertions, 0 deletions

diff --git a/src/libs/engine/events/DisconnectionEvent.h b/src/libs/engine/events/DisconnectionEvent.h
new file mode 100644
index 00000000..bbb70f3c
--- /dev/null
+++ b/src/libs/engine/events/DisconnectionEvent.h
@@ -0,0 +1,106 @@
+/* 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
+ */
+
+#ifndef DISCONNECTIONEVENT_H
+#define DISCONNECTIONEVENT_H
+
+#include <string>
+#include "util/Path.h"
+#include "QueuedEvent.h"
+#include "util/types.h"
+using std::string;
+
+template <typename T> class ListNode;
+template <typename T> class Array;
+
+namespace Om {
+	
+class Patch;
+class Node;
+class Connection;
+class MidiMessage;
+class Port;
+template <typename T> class ConnectionBase;
+template <typename T> class InputPort;
+template <typename T> class OutputPort;
+template <typename T> class TypedDisconnectionEvent; // helper, defined below
+
+
+/** Make a Connection between two Ports.
+ *
+ * \ingroup engine
+ */
+class DisconnectionEvent : public QueuedEvent
+{
+public:
+	DisconnectionEvent(CountedPtr<Responder> responder, const string& src_port_path, const string& dst_port_path);
+	DisconnectionEvent(CountedPtr<Responder> responder, Port* const src_port, Port* const dst_port);
+	~DisconnectionEvent();
+
+	void pre_process();
+	void execute(samplecount offset);
+	void post_process();
+
+private:
+	
+	enum ErrorType { NO_ERROR, PARENT_PATCH_DIFFERENT, PORT_NOT_FOUND, TYPE_MISMATCH };
+	
+	Path           m_src_port_path;
+	Path           m_dst_port_path;
+	
+	Patch*         m_patch;
+	Port*          m_src_port;
+	Port*          m_dst_port;
+
+	bool           m_lookup;
+	QueuedEvent*     m_typed_event;
+	
+	ErrorType m_error;
+};
+
+
+/** Templated DisconnectionEvent.
+ *
+ * Intended to be called from DisconnectionEvent so callers (ie OSCReceiver)
+ * can use DisconnectionEvent without knowing anything about types (which
+ * they can't, since all they have is Port paths).
+ */
+template <typename T>
+class TypedDisconnectionEvent : public QueuedEvent
+{
+public:
+	TypedDisconnectionEvent(CountedPtr<Responder> responder, OutputPort<T>* src_port, InputPort<T>* dst_port);
+	~TypedDisconnectionEvent();
+	
+	void pre_process();
+	void execute(samplecount offset);
+	void post_process();
+
+private:
+	OutputPort<T>*                 m_src_port;
+	InputPort<T>*                  m_dst_port;
+
+	Patch*                         m_patch;
+	Array<Node*>*                  m_process_order; ///< New process order for Patch
+	
+	bool m_succeeded;
+};
+
+
+
+} // namespace Om
+
+#endif // DISCONNECTIONEVENT_H