#ifndef __PROPS_HXX
#define __PROPS_HXX
-#include <simgear/compiler.h>
-#include <simgear/debug/logstream.hxx>
+#ifndef PROPS_STANDALONE
+#define PROPS_STANDALONE 0
+#endif
+
+#include <vector>
+
+#if PROPS_STANDALONE
+
+#include <string>
+#include <iostream>
+
+using std::string;
+using std::vector;
+using std::istream;
+using std::ostream;
-#include <stdio.h>
+#else
+#include <simgear/compiler.h>
+#include <simgear/debug/logstream.hxx>
#include STL_STRING
-#include <vector>
-#include <map>
#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);
#endif
+#endif
+
+
#ifdef NONE
#pragma warn A sloppy coder has defined NONE as a macro!
#undef NONE
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
/**
{
public:
+ /**
+ * Public constants.
+ */
+ enum {
+ MAX_STRING_LEN = 1024
+ };
+
/**
* Property value types.
*/
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 simple (XML) name.
*/
- const string &getName () const { return _name; }
+ const char * getName () const { return _name; }
/**
* 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 child node by name and index.
*/
- SGPropertyNode * getChild (const string &name, int index = 0,
+ SGPropertyNode * getChild (const char * name, int index = 0,
bool create = false);
/**
* Get a const child node by name and index.
*/
- const SGPropertyNode * getChild (const string &name, int index = 0) const;
+ const SGPropertyNode * getChild (const char * name, int index = 0) const;
/**
* Get a vector of all children with the specified name.
*/
- vector<SGPropertyNode *> getChildren (const string &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 string &name) const;
+ SGPropertyNode_ptr removeChild (const char * name, int index = 0,
+ bool keep = true);
//
/**
* Alias this node's leaf value to another's by relative path.
*/
- bool alias (const string &path);
+ bool alias (const char * path);
/**
/**
* Get the path to this node from the root.
*/
- string getPath (bool simplify = false) const;
+ const char * getPath (bool simplify = false) const;
/**
/**
* Get a pointer to another node by relative path.
*/
- SGPropertyNode * getNode (const string &relative_path, bool create = false);
+ SGPropertyNode * getNode (const char * relative_path, bool create = false);
/**
* provided overrides any given in the path itself for the last
* component.
*/
- SGPropertyNode * getNode (const string &relative_path, int index,
+ SGPropertyNode * getNode (const char * relative_path, int index,
bool create = false);
/**
* Get a const pointer to another node by relative path.
*/
- const SGPropertyNode * getNode (const string &relative_path) const;
+ const SGPropertyNode * getNode (const char * relative_path) const;
/**
* This method leaves the index off the last member of the path,
* so that the user can specify it separate.
*/
- const SGPropertyNode * getNode (const string &relative_path,
+ const SGPropertyNode * getNode (const char * relative_path,
int index) const;
/**
* Get a string value for this node.
*/
- string getStringValue () const;
+ const char * getStringValue () const;
/**
* Set a string value for this node.
*/
- bool setStringValue (string value);
+ bool setStringValue (const char * value);
/**
* Set a value of unspecified type for this node.
*/
- bool setUnspecifiedValue (string value);
+ bool setUnspecifiedValue (const char * value);
//
/**
* Bind this node to an external string source.
*/
- bool tie (const SGRawValue<string> &rawValue, bool useDefault = true);
+ bool tie (const SGRawValue<const char *> &rawValue, bool useDefault = true);
/**
/**
* Get another node's type.
*/
- Type getType (const string &relative_path) const;
+ Type getType (const char * relative_path) const;
/**
* Test whether another node has a leaf value.
*/
- bool hasValue (const string &relative_path) const;
+ bool hasValue (const char * relative_path) const;
/**
* Get another node's value as a bool.
*/
- bool getBoolValue (const string &relative_path,
+ bool getBoolValue (const char * relative_path,
bool defaultValue = false) const;
/**
* Get another node's value as an int.
*/
- int getIntValue (const string &relative_path,
+ int getIntValue (const char * relative_path,
int defaultValue = 0) const;
/**
* Get another node's value as a long int.
*/
- long getLongValue (const string &relative_path,
+ long getLongValue (const char * relative_path,
long defaultValue = 0L) const;
/**
* Get another node's value as a float.
*/
- float getFloatValue (const string &relative_path,
+ float getFloatValue (const char * relative_path,
float defaultValue = 0.0) const;
/**
* Get another node's value as a double.
*/
- double getDoubleValue (const string &relative_path,
+ double getDoubleValue (const char * relative_path,
double defaultValue = 0.0L) const;
/**
* Get another node's value as a string.
*/
- string getStringValue (const string &relative_path,
- string defaultValue = "") const;
+ const char * getStringValue (const char * relative_path,
+ const char * defaultValue = "") const;
/**
* Set another node's value as a bool.
*/
- bool setBoolValue (const string &relative_path, bool value);
+ bool setBoolValue (const char * relative_path, bool value);
/**
* Set another node's value as an int.
*/
- bool setIntValue (const string &relative_path, int value);
+ bool setIntValue (const char * relative_path, int value);
/**
* Set another node's value as a long int.
*/
- bool setLongValue (const string &relative_path, long value);
+ bool setLongValue (const char * relative_path, long value);
/**
* Set another node's value as a float.
*/
- bool setFloatValue (const string &relative_path, float value);
+ bool setFloatValue (const char * relative_path, float value);
/**
* Set another node's value as a double.
*/
- bool setDoubleValue (const string &relative_path, double value);
+ bool setDoubleValue (const char * relative_path, double value);
/**
* Set another node's value as a string.
*/
- bool setStringValue (const string &relative_path, string value);
+ bool setStringValue (const char * relative_path, const char * value);
/**
* Set another node's value with no specified type.
*/
- bool setUnspecifiedValue (const string &relative_path, string value);
+ bool setUnspecifiedValue (const char * relative_path, const char * value);
/**
* Test whether another node is bound to an external data source.
*/
- bool isTied (const string &relative_path) const;
+ bool isTied (const char * relative_path) const;
/**
* Bind another node to an external bool source.
*/
- bool tie (const string &relative_path, const SGRawValue<bool> &rawValue,
+ bool tie (const char * relative_path, const SGRawValue<bool> &rawValue,
bool useDefault = true);
/**
* Bind another node to an external int source.
*/
- bool tie (const string &relative_path, const SGRawValue<int> &rawValue,
+ bool tie (const char * relative_path, const SGRawValue<int> &rawValue,
bool useDefault = true);
/**
* Bind another node to an external long int source.
*/
- bool tie (const string &relative_path, const SGRawValue<long> &rawValue,
+ bool tie (const char * relative_path, const SGRawValue<long> &rawValue,
bool useDefault = true);
/**
* Bind another node to an external float source.
*/
- bool tie (const string &relative_path, const SGRawValue<float> &rawValue,
+ bool tie (const char * relative_path, const SGRawValue<float> &rawValue,
bool useDefault = true);
/**
* Bind another node to an external double source.
*/
- bool tie (const string &relative_path, const SGRawValue<double> &rawValue,
+ bool tie (const char * relative_path, const SGRawValue<double> &rawValue,
bool useDefault = true);
/**
* Bind another node to an external string source.
*/
- bool tie (const string &relative_path, const SGRawValue<string> &rawValue,
+ bool tie (const char * relative_path, const SGRawValue<const char *> &rawValue,
bool useDefault = true);
/**
* Unbind another node from any external data source.
*/
- bool untie (const string &relative_path);
+ 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.
*/
- SGPropertyNode (const string &name, int index, SGPropertyNode * parent);
+ SGPropertyNode (const char * name, int index, SGPropertyNode * parent);
private:
long get_long () const;
float get_float () const;
double get_double () const;
- const string get_string () const;
+ const char * get_string () const;
// Set the raw value
bool set_bool (bool value);
bool set_long (long value);
bool set_float (float value);
bool set_double (double value);
- bool set_string (const string &value);
+ bool set_string (const char * value);
/**
/**
* Get the value as a string.
*/
- string make_string () const;
+ const char * make_string () const;
/**
*/
void trace_write () const;
- string _name;
+
+ /**
+ * Increment reference counter
+ */
+ void incrementRef();
+
+ /**
+ * Decrement reference counter
+ */
+ int decrementRef();
+
+ friend class SGPropertyNode_ptr;
+
+
+ mutable char _buffer[MAX_STRING_LEN+1];
+
+ 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 {
SGRawValue<long> * long_val;
SGRawValue<float> * float_val;
SGRawValue<double> * double_val;
- SGRawValue<string> * string_val;
+ SGRawValue<const char *> * string_val;
} _value;
union {
long long_val;
float float_val;
double double_val;
- string * 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