introduce GUIObjectState; massive, pervasive changes in visibility and height management for track displays in the editor

git-svn-id: svn://localhost/ardour2/branches/3.0@9796 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 100 insertions, 0 deletions

diff --git a/gtk2_ardour/gui_object.h b/gtk2_ardour/gui_object.h
new file mode 100644
index 0000000000..a109e625ae
--- /dev/null
+++ b/gtk2_ardour/gui_object.h
@@ -0,0 +1,100 @@
+/*
+    Copyright (C) 2011 Paul Davis
+
+    This program 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.
+
+    This program 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 more 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#ifndef __gtk_ardour_gui_object_h__
+#define __gtk_ardour_gui_object_h__
+
+#include <map>
+#include <string>
+
+#include <boost/variant.hpp>
+
+#include "pbd/xml++.h"
+#include "pbd/id.h"
+
+class GUIObjectState {
+  public:
+	GUIObjectState() {}
+	~GUIObjectState();
+
+	XMLNode& get_state () const;
+	int set_state (const XMLNode&);
+
+	static const std::string xml_node_name;
+	void load (const XMLNode&);
+
+	GUIObjectState& operator= (const GUIObjectState& other);
+
+  private:
+	typedef boost::variant<int64_t,std::string> Variant;
+	typedef std::map<std::string,Variant> PropertyMap;
+	typedef std::map<std::string,PropertyMap> StringPropertyMap;
+
+	StringPropertyMap _property_maps;
+
+	template<typename T> T get (const std::string& id, const std::string& prop_name, const T& type_determination_placeholder, bool* empty = 0) {
+		StringPropertyMap::iterator i = _property_maps.find (id);
+		
+		if (i == _property_maps.end()) {
+			if (empty) {
+				*empty = true;
+			}
+			return T();
+		}
+
+		const PropertyMap& pmap (i->second);
+		PropertyMap::const_iterator p = pmap.find (prop_name);
+
+		if (p == pmap.end()) {
+			return T();
+		}
+
+		return boost::get<T> (p->second);
+	}
+
+	void clear_maps ();
+
+  public:
+	int get_int (const std::string& id, const std::string& prop_name) {
+		int i = 0;
+		return get (id, prop_name, i);
+	}
+
+	std::string get_string (const std::string& id, const std::string& prop_name) {
+		std::string s;
+		return get (id, prop_name, s);
+	}
+
+	template<typename T> void set (const std::string& id, const std::string& prop_name, const T& val) {
+		StringPropertyMap::iterator i = _property_maps.find (id);
+		
+		if (i != _property_maps.end()) {
+			i->second[prop_name] = val;
+			// std::cerr << id << " REset " << prop_name << " = [" << val << "]\n";
+		} else {
+			_property_maps[id] = PropertyMap();
+			_property_maps[id][prop_name] = val;
+			// std::cerr << id << " set " << prop_name << " = [" << val << "]\n";
+		}
+	}
+
+};
+
+
+#endif /* __gtk_ardour_gui_object_h__ */