Skip to main content
History: File dialog code CEGUIHashMapTemplates.h
View published page
Source of version: 3
(current)
__CEGUIHashMapTemplates.h__ {CODE(wrap="1", colors="c++")}#ifndef _CEGUI_HASHMAP_TEMPLATES_H_ #define _CEGUI_HASHMAP_TEMPLATES_H_ #include <hash_map> #if defined(_MSC_VER) # pragma warning(push) # pragma warning(disable : 4786) #endif using namespace std; namespace CEGUI { /********************************************************************************************* Method : getEntryFromHashMap Description : The following template methods provide generic methods, such as adding, searching and deleting entries to/from a HashMap. The HashMap is a hash_map with attributes of type Z as an identifying key and attributes of class T as the object to be stored. This template method is used to search an object in the HashMap, using the id as search key. Parameters : NA Returnvalue : NA **********************************************************************************************/ template<typename Z, class T> T getEntryFromHashMap (Z id, hash_map<Z, T>* hashMap) { // Search the entry in the hashMap if (hashMap) { hash_map<Z, T>::iterator hashMapIterator; hashMapIterator = hashMap->find (id); if (hashMapIterator != hashMap->end()) { // Found it return hashMapIterator->second; } } return NULL; }; /********************************************************************************************* Method : addEntryToHashMap Description : This template method is used to add an entry to the hashMap. If an entry with the same key is already present, the stored object is deleted! Parameters : NA Returnvalue : NA **********************************************************************************************/ template<typename Z, class T> void addEntryToHashMap (Z id, T object, hash_map<Z, T>* hashMap) { if (hashMap) { T existingObject = getEntryFromHashMap (id, hashMap); if (existingObject == NULL) { // Not found; insert it hashMap->insert (make_pair(id, object)); } else { if (object != existingObject) { // The key exists, but the object differs hashMap->erase (id); // Remove the entry from the hash_map delete existingObject; // Delete the object hashMap->insert (make_pair(id, object)); } } } }; /********************************************************************************************* Method : eraseEntryFromHashMap Description : This template method is used to remove one entry from the hashMap. The entry itself will not be deleted! Parameters : NA Returnvalue : NA **********************************************************************************************/ template<typename Z, class T> void eraseEntryFromHashMap (Z id, hash_map<Z, T>* hashMap) { // Remove one entry; it wil not be deleted if (hashMap) { hash_map<Z, T>::iterator hashMapIterator; hashMapIterator = hashMap->find (id); if (hashMapIterator != hashMap->end()) { // Found it hashMap->erase (hashMapIterator); } } }; /********************************************************************************************* Method : deleteEntryFromHashMap Description : This template method is used to remove one entry from the hashMap and delete it. Parameters : NA Returnvalue : NA **********************************************************************************************/ template<typename Z, class T> void deleteEntryFromHashMap (Z id, hash_map<Z, T>* hashMap) { // Remove one entry; it wil not be deleted if (hashMap) { hash_map<Z, T>::iterator hashMapIterator; hashMapIterator = hashMap->find (id); if (hashMapIterator != hashMap->end()) { // Found it hashMap->erase (hashMapIterator); delete hashMapIterator->second; } } }; /********************************************************************************************* Method : deleteAllEntriesFromHashMap Description : This template method is used to delete all entries from the hashMap. Parameters : NA Returnvalue : NA **********************************************************************************************/ template<typename Z, class T> void deleteAllEntriesFromHashMap (hash_map<Z, T>* hashMap) { // Delete all hashMap entries if (hashMap) { hash_map<Z, T>::iterator hashMapIterator; for (hashMapIterator = hashMap->begin(); hashMapIterator != hashMap->end(); hashMapIterator++) { if (hashMapIterator->second) delete hashMapIterator->second; } hashMap->clear(); } }; }; #endif{CODE}
Search by Tags
Search Wiki by Freetags
Latest Changes
Compiled API Reference
Overlay Editor
Introduction - JaJDoo Shader Guide - Basics
RT Shader System
RapidXML Dotscene Loader
One Function Ogre
One Function Ogre
...more
Search
Find
Online Users
147 online users
OGRE Wiki
Support and community documentation for Ogre3D
Ogre Forums
ogre3d.org
Log in
Username
Password
CapsLock is on.
Remember me (for 1 year)
Log in