More juggling

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

1 files changed, 107 insertions, 0 deletions

diff --git a/src/libs/engine/events/ConnectionEvent.h b/src/libs/engine/events/ConnectionEvent.h
new file mode 100644
index 00000000..8aaf2292
--- /dev/null
+++ b/src/libs/engine/events/ConnectionEvent.h
@@ -0,0 +1,107 @@
+/* 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 CONNECTIONEVENT_H
+#define CONNECTIONEVENT_H
+
+#include <string>
+#include "QueuedEvent.h"
+#include "util/Path.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 TypedConnectionEvent; // helper, defined below
+
+
+/** Make a Connection between two Ports.
+ *
+ * \ingroup engine
+ */
+class ConnectionEvent : public QueuedEvent
+{
+public:
+	ConnectionEvent(CountedPtr<Responder> responder, const string& src_port_path, const string& dst_port_path);
+	~ConnectionEvent();
+
+	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;
+
+	QueuedEvent*     m_typed_event;
+	
+	ErrorType m_error;
+};
+
+
+/** Templated ConnectionEvent.
+ *
+ * Intended to be called from ConnectionEvent so callers (ie OSCReceiver)
+ * can use ConnectionEvent without knowing anything about types (which
+ * they can't, since all they have is Port paths).
+ */
+template <typename T>
+class TypedConnectionEvent : public QueuedEvent
+{
+public:
+	TypedConnectionEvent(CountedPtr<Responder> responder, OutputPort<T>* src_port, InputPort<T>* dst_port);
+	~TypedConnectionEvent();
+	
+	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
+	ConnectionBase<T>*             m_connection;
+	ListNode<Connection*>*         m_patch_listnode;
+	ListNode<ConnectionBase<T>*>*  m_port_listnode;
+	
+	bool m_succeeded;
+};
+
+
+
+} // namespace Om
+
+#endif // CONNECTIONEVENT_H