#endif
#include <vector>
-#include <map>
#if PROPS_STANDALONE
using std::string;
using std::vector;
-using std::map;
using std::istream;
using std::ostream;
#include STL_IOSTREAM
SG_USING_STD(string);
SG_USING_STD(vector);
-SG_USING_STD(map);
#if !defined(SG_HAVE_NATIVE_SGI_COMPILERS)
SG_USING_STD(istream);
SG_USING_STD(ostream);
setter_t _setter;
};
+\f
+/**
+ * The smart pointer that manage reference counting
+ */
+class SGPropertyNode;
+class SGPropertyNode_ptr
+{
+public:
+
+ /**
+ * Default constructor
+ */
+ SGPropertyNode_ptr();
+
+ /**
+ * Copy constructor
+ */
+ SGPropertyNode_ptr( const SGPropertyNode_ptr &r );
+
+ /**
+ * Constructor from a pointer to a node
+ */
+ SGPropertyNode_ptr( SGPropertyNode *p );
+
+ /**
+ * Destructor
+ */
+ ~SGPropertyNode_ptr();
+
+ /**
+ * Assignement operator
+ */
+ SGPropertyNode_ptr &operator=( const SGPropertyNode_ptr &r );
+
+ /**
+ * Pointer access operator
+ */
+ SGPropertyNode *operator->();
+
+ /**
+ * Pointer access operator (const)
+ */
+ const SGPropertyNode *operator->() const;
+
+ /**
+ * Conversion to SGPropertyNode * operator
+ */
+ operator SGPropertyNode *();
+
+ /**
+ * Conversion to const SGPropertyNode * operator
+ */
+ operator const SGPropertyNode *() const;
+
+ /**
+ * Return the pointer.
+ */
+ SGPropertyNode * ptr () { return _ptr; }
+
+ /**
+ * Validity test
+ */
+ bool valid() const;
+
+private:
+
+ SGPropertyNode *_ptr;
+};
+
+
+\f
+/**
+ * The property change listener interface.
+ *
+ * <p>Any class that needs to listen for property changes must implement
+ * this interface.</p>
+ */
+class SGPropertyChangeListener
+{
+public:
+ virtual ~SGPropertyChangeListener ();
+ virtual void valueChanged (SGPropertyNode * node);
+ virtual void childAdded (SGPropertyNode * parent, SGPropertyNode * child);
+ virtual void childRemoved (SGPropertyNode * parent, SGPropertyNode * child);
+
+protected:
+ friend class SGPropertyNode;
+ virtual void register_property (SGPropertyNode * node);
+ virtual void unregister_property (SGPropertyNode * node);
+
+private:
+ vector<SGPropertyNode *> _properties;
+};
+
\f
/**
READ = 1,
WRITE = 2,
ARCHIVE = 4,
- TRACE_READ = 8,
- TRACE_WRITE = 16
+ REMOVED = 8,
+ TRACE_READ = 16,
+ TRACE_WRITE = 32
};
+ /**
+ * Last used attribute
+ * Update as needed when enum Attribute is changed
+ */
+ static const int LAST_USED_ATTRIBUTE;
+
+
/**
* Default constructor.
*/
/**
* Get the node's integer index.
*/
- const int getIndex () const { return _index; }
+ int getIndex () const { return _index; }
/**
/**
* Get the number of child nodes.
*/
- const int nChildren () const { return _children.size(); }
+ int nChildren () const { return _children.size(); }
/**
/**
* Get a vector of all children with the specified name.
*/
- vector<SGPropertyNode *> getChildren (const char * name);
+ vector<SGPropertyNode_ptr> getChildren (const char * name) const;
/**
- * Get a vector all all children (const) with the specified name.
+ * Remove a child node
*/
- vector<const SGPropertyNode *> getChildren (const char * name) const;
+ SGPropertyNode_ptr removeChild (const char * name, int index = 0,
+ bool keep = true);
//
bool untie (const char * relative_path);
+ /**
+ * Add a change listener to the property.
+ */
+ void addChangeListener (SGPropertyChangeListener * listener);
+
+
+ /**
+ * Remove a change listener from the property.
+ */
+ void removeChangeListener (SGPropertyChangeListener * listener);
+
+
+ /**
+ * Fire a value change event to all listeners.
+ */
+ void fireValueChanged ();
+
+
+ /**
+ * Fire a child-added event to all listeners.
+ */
+ void fireChildAdded (SGPropertyNode * child);
+
+
+ /**
+ * Fire a child-removed event to all listeners.
+ */
+ void fireChildRemoved (SGPropertyNode * child);
+
+
protected:
+ void fireValueChanged (SGPropertyNode * node);
+ void fireChildAdded (SGPropertyNode * parent, SGPropertyNode * child);
+ void fireChildRemoved (SGPropertyNode * parent, SGPropertyNode * child);
/**
* Protected constructor for making new nodes on demand.
*/
void trace_write () const;
+
+ /**
+ * Increment reference counter
+ */
+ void incrementRef();
+
+ /**
+ * Decrement reference counter
+ */
+ int decrementRef();
+
+ friend class SGPropertyNode_ptr;
+
+
mutable char _buffer[MAX_STRING_LEN+1];
- const char * _name;
+ class hash_table;
+
+ char * _name;
int _index;
SGPropertyNode * _parent;
- vector<SGPropertyNode *> _children;
- typedef map<const string,SGPropertyNode *> cache_map;
- cache_map * _path_cache;
+ vector<SGPropertyNode_ptr> _children;
+ vector<SGPropertyNode_ptr> _removedChildren;
+ hash_table * _path_cache;
Type _type;
bool _tied;
int _attr;
+ int _count;
// The right kind of pointer...
union {
long long_val;
float float_val;
double double_val;
- const char * string_val;
+ char * string_val;
} _local_val;
+ vector <SGPropertyChangeListener *> * _listeners;
+
+
+\f
+ /**
+ * A very simple hash table with no remove functionality.
+ */
+ class hash_table {
+ public:
+
+ /**
+ * An entry in a bucket in a hash table.
+ */
+ class entry {
+ public:
+ entry ();
+ virtual ~entry ();
+ virtual const char * get_key () { return _key; }
+ virtual void set_key (const char * key);
+ virtual SGPropertyNode * get_value () { return _value; }
+ virtual void set_value (SGPropertyNode * value);
+ private:
+ char * _key;
+ SGPropertyNode * _value;
+ };
+
+
+ /**
+ * A bucket in a hash table.
+ */
+ class bucket {
+ public:
+ bucket ();
+ virtual ~bucket ();
+ virtual entry * get_entry (const char * key, bool create = false);
+ private:
+ int _length;
+ entry ** _entries;
+ };
+
+ friend class bucket;
+
+ hash_table ();
+ virtual ~hash_table ();
+ virtual SGPropertyNode * get (const char * key);
+ virtual void put (const char * key, SGPropertyNode * value);
+
+ private:
+ unsigned int hashcode (const char * key);
+ unsigned int _data_length;
+ bucket ** _data;
+ };
};
projects / simgear.git / blobdiff