More juggling

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

1 files changed, 105 insertions, 0 deletions

diff --git a/src/libs/engine/NodeBase.h b/src/libs/engine/NodeBase.h
new file mode 100644
index 00000000..796abbca
--- /dev/null
+++ b/src/libs/engine/NodeBase.h
@@ -0,0 +1,105 @@
+/* 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 NODEBASE_H
+#define NODEBASE_H
+
+#include <string>
+#include <cstdlib>
+#include "Node.h"
+using std::string;
+
+namespace Om {
+
+class Plugin;
+class Patch;
+namespace Shared {
+	class ClientInterface;
+} using Shared::ClientInterface;
+
+
+/** Common implementation stuff for Node.
+ *
+ * Pretty much just attributes and getters/setters are here.
+ *
+ * \ingroup engine
+ */
+class NodeBase : public Node
+{
+public:
+	NodeBase(const string& name, size_t poly, Patch* parent, samplerate srate, size_t buffer_size);
+
+	virtual ~NodeBase();
+
+	virtual void activate();
+	virtual void deactivate();
+	bool activated() { return m_activated; }
+
+	virtual void run(size_t nframes);
+		
+	virtual void set_port_buffer(size_t voice, size_t port_num, void* buf) {}
+	
+	virtual void add_to_patch() {}
+	virtual void remove_from_patch() {}
+	
+	void add_to_store();
+	void remove_from_store();
+	
+	//void send_creation_messages(ClientInterface* client) const;
+	
+	size_t num_ports() const { return m_num_ports; }
+	size_t poly() const      { return m_poly; }
+	bool   traversed() const { return m_traversed; }
+	void   traversed(bool b) { m_traversed = b; }
+	
+	const Array<Port*>& ports() const { return m_ports; }
+
+	virtual List<Node*>* providers()               { return m_providers; }
+	virtual void         providers(List<Node*>* l) { m_providers = l; }
+	
+	virtual List<Node*>* dependants()               { return m_dependants; }
+	virtual void         dependants(List<Node*>* l) { m_dependants = l; }
+	
+	Patch* parent_patch() const { return (m_parent == NULL) ? NULL : m_parent->as_patch(); }
+
+	virtual const Plugin* plugin() const                 { exit(EXIT_FAILURE); }
+	virtual void          plugin(const Plugin* const pi) { exit(EXIT_FAILURE); }
+	
+	void set_path(const Path& new_path);
+	
+protected:	
+	// Disallow copies (undefined)
+	NodeBase(const NodeBase&);
+	NodeBase& operator=(const NodeBase&);
+	
+	size_t      m_poly;
+
+	samplerate  m_srate;
+	size_t      m_buffer_size;
+	bool        m_activated;
+
+	size_t       m_num_ports; // number of ports PER VOICE
+	Array<Port*> m_ports;
+
+	bool         m_traversed;
+	List<Node*>* m_providers;     // Nodes connected to this one's input ports
+	List<Node*>* m_dependants;    // Nodes this one's output ports are connected to
+};
+
+
+} // namespace Om
+
+#endif // NODEBASE_H