added FieldP to values and styles, implemented reflection for IndexMap

git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@36 0fc631ac-6414-0410-93d0-97cfa31319b6

src/util/index_map.hpp

@@ -13,11 +13,19 @@
 
 // ----------------------------------------------------------------------------- : IndexMap
 
-/// A kind of map of K->V, with the following properties:
+/// A kind of map of Key->Value, with the following properties:
 /**  - K must have a unique member ->index of type UInt
- *   - There must exist a function initObject(K, V&)
+ *   - There must exist a function void init_object(Key, Value&)
  *     that stores a new V object for a given key in the reference
+ *   - There must exist a function Key get_key(Value)
+ *     that returns a key for a given value
+ *   - For reflection there must exist a function String get_key_name(Value)
+ *     that returns the key in string form
  *   - O(1) inserts and lookups
+ *
+ *  The 'map' is actually just a vector of values, each key has an index
+ *  which is used for the vector.
+ *  Values know their keys, so there is no need to store them separately.
  */
 template <typename Key, typename Value>
 class IndexMap : private vector<Value> {
@@ -25,20 +33,18 @@ class IndexMap : private vector<Value> {
 	using vector<Value>::empty;
 	using vector<Value>::size;
 	using vector<Value>::iterator;
+	using vector<Value>::const_iterator;
 	using vector<Value>::begin;
 	using vector<Value>::end;
 	
 	/// Initialize this map with default values given a list of keys, has no effect if !empty()
-	/** Requires a function
-	 *    void initObject(Key, Value&)
-	 */
 	void init(const vector<Key>& keys) {
 		if (!this->empty()) return;
 		this->reserve(keys.size());
 		FOR_EACH_CONST(key, keys) {
 			assert(key);
 			if (key->index >= this->size()) this->resize(key->index + 1);
-			initObject(key, (*this)[key->index]);
+			init_object(key, (*this)[key->index]);
 		}
 	}
 	
@@ -48,20 +54,18 @@ class IndexMap : private vector<Value> {
 		assert(this->size() > key->index);
 		return at(key->index);
 	}
-
+	
 	/// Is a value contained in this index map?
-	/// requires a function Key Value::getKey()
 	inline bool contains(const Value& value) const {
 		assert(value);
-		size_t index = value->getKey()->index;
+		size_t index = get_key(value)->index;
 		return index < this.size() && (*this)[index] == value
 	}
-
+	
 	/// Is a key in the domain of this index map?
-	/// requires a function Key Value::getKey()
 	inline bool containsKey(const Key& key) const {
 		assert(key);
-		return key->index < this.size() && (*this)[key->index]->getKey() == key
+		return key->index < this.size() && get_key((*this)[key->index]) == key
 	}
 	
   private:

src/util/io/get_member.hpp

@@ -46,6 +46,7 @@ class GetDefaultMember {
 	template <typename T>             void handle(const Scriptable<T>&);
 	template <typename T>             void handle(const vector<T>&     c) { value = toScript(&c); }
 	template <typename K, typename V> void handle(const map<K,V>&      c) { value = toScript(&c); }
+	template <typename K, typename V> void handle(const IndexMap<K,V>& c) { value = toScript(&c); }
 	template <typename T>             void handle(const shared_ptr<T>& p) { value = toScript(p); }
 	void handle(const ScriptValueP&);
 	void handle(const ScriptP&);
@@ -78,6 +79,16 @@ class GetMember : private GetDefaultMember {
 	}
 	/// Handle an object: investigate children
 	template <typename T> void handle(const T&);
+	/// Handle an index map: invistigate keys
+	template <typename K, typename V> void handle(const IndexMap<K,V>& m) {
+		if (gdm.result()) return;
+		for (typename IndexMap<K,V>::const_iterator it = m.begin() ; it != m.end() ; ++it) {
+			if (get_key_name(*it) == target_name) {
+				gdm.handle(*it);
+				return;
+			}
+		}
+	}
 		
   private:
 	const String& target_name;	///< The name we are looking for

src/util/io/reader.hpp

@@ -65,7 +65,9 @@ class Reader {
 	/// Reads a shared_ptr from the input stream
 	template <typename T> void handle(shared_ptr<T>& pointer);
 	/// Reads a map from the input stream
-	template <typename K, typename V> void handle(map<K,V>& map);
+	template <typename K, typename V> void handle(map<K,V>& m);
+	/// Reads an IndexMap from the input stream, reads only keys that already exist in the map
+	template <typename K, typename V> void handle(IndexMap<K,V>& m);
 	/// Reads a Defaultable from the input stream
 	template <typename T> void handle(Defaultable<T>&);
 	/// Reads a Scriptable from the input stream
@@ -150,10 +152,19 @@ void Reader::handle(shared_ptr<T>& pointer) {
 }
 
 template <typename K, typename V>
-void Reader::handle(map<K,V>& map) {
+void Reader::handle(map<K,V>& m) {
 	// TODO
 }
 
+template <typename K, typename V>
+void Reader::handle(IndexMap<K,V>& m) {
+	while (indent >= expected_indent) {
+		for (typename IndexMap<K,V>::iterator it = m.begin() ; it != m.end() ; ++it) {
+			handle(get_key_name(*it).c_str(), *it);
+		}
+	}
+}
+
 // ----------------------------------------------------------------------------- : Reflection
 
 /// Implement reflection as used by Reader

src/util/io/writer.hpp

@@ -52,6 +52,8 @@ class Writer {
 	template <typename T> void handle(const shared_ptr<T>& pointer);
 	/// Write a map to the output stream
 	template <typename K, typename V> void handle(const map<K,V>& map);
+	/// Write an IndexMap to the output stream
+	template <typename K, typename V> void handle(const IndexMap<K,V>& map);
 	/// Write an object of type Defaultable<T> to the output stream
 	template <typename T> void handle(const Defaultable<T>&);
 	/// Write an object of type Scriptable<T> to the output stream
@@ -98,6 +100,7 @@ template <typename T>
 void Writer::handle(const shared_ptr<T>& pointer) {
 	if (pointer) handle(*pointer);
 }
+
 template <typename K, typename V>
 void Writer::handle(const map<K,V>& m) {
 	for (typename map<K,V>::const_iterator it = m.begin() ; it != m.end() ; ++it) {
@@ -105,6 +108,14 @@ void Writer::handle(const map<K,V>& m) {
 	}
 }
 
+template <typename K, typename V>
+void Writer::handle(const IndexMap<K,V>& m) {
+	for (typename IndexMap<K,V>::const_iterator it = m.begin() ; it != m.end() ; ++it) {
+		handle(get_key_name(*it).c_str(), *it);
+	}
+}
+
+
 // ----------------------------------------------------------------------------- : Reflection
 
 /// Implement reflection as used by Writer