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authorMax Horn2010-10-28 00:25:33 +0000
committerMax Horn2010-10-28 00:25:33 +0000
commitcf3551525f4583ec8a5feb231cb25d81a9722853 (patch)
tree6c7fc224aa21aecb8027efcf2fbeb3d4e6eef3e8 /engines/sword25/kernel
parent7e1d78cab1f25bf15c67d523dab1891067bd07f7 (diff)
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SWORD25: Get rid of CallbackRegistry
svn-id: r53898
Diffstat (limited to 'engines/sword25/kernel')
-rw-r--r--engines/sword25/kernel/callbackregistry.cpp111
-rw-r--r--engines/sword25/kernel/callbackregistry.h84
2 files changed, 0 insertions, 195 deletions
diff --git a/engines/sword25/kernel/callbackregistry.cpp b/engines/sword25/kernel/callbackregistry.cpp
deleted file mode 100644
index 673da0679c..0000000000
--- a/engines/sword25/kernel/callbackregistry.cpp
+++ /dev/null
@@ -1,111 +0,0 @@
-/* ScummVM - Graphic Adventure Engine
- *
- * ScummVM is the legal property of its developers, whose names
- * are too numerous to list here. Please refer to the COPYRIGHT
- * file distributed with this source distribution.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
-
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
-
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * $URL$
- * $Id$
- *
- */
-
-/*
- * This code is based on Broken Sword 2.5 engine
- *
- * Copyright (c) Malte Thiesen, Daniel Queteschiner and Michael Elsdoerfer
- *
- * Licensed under GNU GPL v2
- *
- */
-
-// Alle Callbackfunktionen die von Objekten gerufen werden, die persistiert werden können, müssen hier registriert werden.
-// Beim Speichern wird statt des Pointers der Bezeichner gespeichert. Beim Laden wird der Bezeichner wieder in einen Pointer umgewandelt.
-// Diese Klasse führt also so etwas ähnliches wie eine Importtabelle für Callback-Funktionen.
-//
-// Dieses Vorgehen hat mehrere Vorteile:
-// 1. Die Speicherstände sind plattformunabhängig. Es werden keine Pointer auf Funktionen gespeichert, sondern nur Namen von Callbackfunktionen.
-// Diese können beim Laden über diese Klasse in systemabhängige Pointer umgewandelt werden.
-// 2. Speicherstände können auch nach einem Engineupdate weiterhin benutzt werden. Beim Erstellen einer neun Binary verschieben sich häufig die
-// Funktionen. Eine Callbackfunktion könnte sich also nach einem Update an einer anderen Stelle befinden als davor. Wenn im Spielstand der
-// Pointer gespeichert war, stürtzt das Programm beim Äufrufen dieser Callbackfunktion ab. Durch das Auflösungverfahren wird beim Laden der
-// Callbackbezeichner in den neuen Funktionspointer umgewandelt und der Aufruf kann erfolgen.
-
-#define BS_LOG_PREFIX "CALLBACKREGISTRY"
-
-#include "sword25/kernel/callbackregistry.h"
-
-namespace Sword25 {
-
-bool CallbackRegistry::registerCallbackFunction(const Common::String &name, CallbackPtr ptr) {
- if (name == "") {
- BS_LOG_ERRORLN("The empty string is not allowed as a callback function name.");
- return false;
- }
-
- if (findPtrByName(name) != 0) {
- BS_LOG_ERRORLN("There is already a callback function with the name \"%s\".", name.c_str());
- return false;
- }
- if (findNameByPtr(ptr) != "") {
- BS_LOG_ERRORLN("There is already a callback function with the pointer 0x%x.", ptr);
- return false;
- }
-
- storeCallbackFunction(name, ptr);
-
- return true;
-}
-
-CallbackPtr CallbackRegistry::resolveCallbackFunction(const Common::String &name) const {
- CallbackPtr result = findPtrByName(name);
-
- if (!result) {
- BS_LOG_ERRORLN("There is no callback function with the name \"%s\".", name.c_str());
- }
-
- return result;
-}
-
-Common::String CallbackRegistry::resolveCallbackPointer(CallbackPtr ptr) const {
- const Common::String &result = findNameByPtr(ptr);
-
- if (result == "") {
- BS_LOG_ERRORLN("There is no callback function with the pointer 0x%x.", ptr);
- }
-
- return result;
-}
-
-CallbackPtr CallbackRegistry::findPtrByName(const Common::String &name) const {
- // Eintrag in der Map finden und den Pointer zurückgeben.
- NameToPtrMap::const_iterator it = _nameToPtrMap.find(name);
- return it == _nameToPtrMap.end() ? 0 : it->_value;
-}
-
-Common::String CallbackRegistry::findNameByPtr(CallbackPtr ptr) const {
- // Eintrag in der Map finden und den Namen zurückgeben.
- PtrToNameMap::const_iterator it = _ptrToNameMap.find(ptr);
- return it == _ptrToNameMap.end() ? "" : it->_value;
-}
-
-void CallbackRegistry::storeCallbackFunction(const Common::String &name, CallbackPtr ptr) {
- // Callback-Funktion in beide Maps eintragen.
- _nameToPtrMap[name] = ptr;
- _ptrToNameMap[ptr] = name;
-}
-
-} // End of namespace Sword25
diff --git a/engines/sword25/kernel/callbackregistry.h b/engines/sword25/kernel/callbackregistry.h
deleted file mode 100644
index f73a1341f7..0000000000
--- a/engines/sword25/kernel/callbackregistry.h
+++ /dev/null
@@ -1,84 +0,0 @@
-/* ScummVM - Graphic Adventure Engine
- *
- * ScummVM is the legal property of its developers, whose names
- * are too numerous to list here. Please refer to the COPYRIGHT
- * file distributed with this source distribution.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
-
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
-
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * $URL$
- * $Id$
- *
- */
-
-/*
- * This code is based on Broken Sword 2.5 engine
- *
- * Copyright (c) Malte Thiesen, Daniel Queteschiner and Michael Elsdoerfer
- *
- * Licensed under GNU GPL v2
- *
- */
-
-#ifndef SWORD25_CALLBACK_REGISTRY_H
-#define SWORD25_CALLBACK_REGISTRY_H
-
-#include "common/scummsys.h"
-#include "common/str.h"
-#include "common/hash-str.h"
-#include "common/hashmap.h"
-#include "sword25/kernel/common.h"
-
-namespace Sword25 {
-
-typedef void (*CallbackPtr)(int command);
-
-class CallbackRegistry {
-public:
- static CallbackRegistry &instance() {
- static CallbackRegistry _instance;
- return _instance;
- }
-
- bool registerCallbackFunction(const Common::String &name, CallbackPtr ptr);
- CallbackPtr resolveCallbackFunction(const Common::String &name) const;
- Common::String resolveCallbackPointer(CallbackPtr ptr) const;
-
-private:
- typedef Common::HashMap<Common::String, CallbackPtr, Common::CaseSensitiveString_Hash, Common::CaseSensitiveString_EqualTo> NameToPtrMap;
- NameToPtrMap _nameToPtrMap;
-
- struct CallbackPtr_EqualTo {
- bool operator()(CallbackPtr x, CallbackPtr y) const {
- return x == y;
- }
- };
- struct CallbackPtr_Hash {
- uint operator()(CallbackPtr x) const {
- return *(uint *)&x;
- }
- };
-
- typedef Common::HashMap<CallbackPtr, Common::String, CallbackPtr_Hash, CallbackPtr_EqualTo> PtrToNameMap;
- PtrToNameMap _ptrToNameMap;
-
- CallbackPtr findPtrByName(const Common::String &name) const;
- Common::String findNameByPtr(CallbackPtr ptr) const;
- void storeCallbackFunction(const Common::String &name, CallbackPtr ptr);
-};
-
-} // End of namespace Sword25
-
-#endif