#include "pbd/xml++.h"
#include "pbd/id.h"
-class GUIObjectState {
- public:
- GUIObjectState() {}
- ~GUIObjectState();
-
- XMLNode& get_state () const;
- int set_state (const XMLNode&);
+class GUIObjectState
+{
+public:
+ GUIObjectState ();
static const std::string xml_node_name;
void load (const XMLNode&);
- GUIObjectState& operator= (const GUIObjectState& other);
+ int set_state (const XMLNode&);
+ XMLNode& get_state () const;
- 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);
+ /** Get a string from our state.
+ * @param id property of Object node to look for.
+ * @param prop_name name of the Object property to return.
+ * @param empty if non-0, filled in with true if the property is currently non-existant, otherwise false.
+ * @return value of property `prop_name', or empty.
+ */
+ std::string get_string (const std::string& id, const std::string& prop_name, bool* empty = 0);
+
+ template<typename T> void set_property (const std::string& id, const std::string& prop_name, const T& val) {
+ XMLNode* child = get_or_add_node (id);
+ child->set_property (prop_name.c_str(), val);
}
- void clear_maps ();
+ /** Remove node with provided id.
+ * @param id property of Object node to look for.
+ */
+ void remove_node (const std::string& id);
+ std::list<std::string> all_ids () const;
- 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);
- }
+ XMLNode* get_or_add_node (const std::string &);
- 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";
- }
- }
+ static XMLNode* get_node (const XMLNode *, const std::string &);
+ static XMLNode* get_or_add_node (XMLNode *, const std::string &);
+ private:
+ // no copy construction. object_map saves pointers to _state XMLNodes
+ // use set_state(get_state())
+ GUIObjectState (const GUIObjectState& other);
+
+ XMLNode _state;
+ // ideally we'd use a O(1) hash table here,
+ // but O(log(N)) is fine already.
+ std::map <std::string, XMLNode*> object_map;
};
-
#endif /* __gtk_ardour_gui_object_h__ */