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/*
* The Mana World
* Copyright 2004 The Mana World Development Team
*
* This file is part of The Mana World.
*
* The Mana World 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
* any later version.
*
* The Mana World 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 The Mana World; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id$
*/
#include "configuration.h"
#include <cmath>
#include <libxml/xmlwriter.h>
#include "utils/logger.h"
// MSVC libxml2 at the moment doesn't work right when using MinGW, missing this
// function at link time.
#ifdef WIN32
#undef xmlFree
#define xmlFree(x) ;
#endif
ConfigListener::~ConfigListener()
{
}
void Configuration::init(const std::string &filename)
{
configPath = filename;
// Do not attempt to read config from non-existant file
FILE *testFile = fopen(configPath.c_str(), "r");
if (!testFile) {
return;
}
else {
fclose(testFile);
}
xmlDocPtr doc = xmlReadFile(filename.c_str(), NULL, 0);
if (!doc) return;
xmlNodePtr node = xmlDocGetRootElement(doc);
if (!node || !xmlStrEqual(node->name, BAD_CAST "configuration")) {
LOG_WARN("Warning: No configuration file (" << filename.c_str() << ")");
return;
}
for (node = node->xmlChildrenNode; node != NULL; node = node->next)
{
if (xmlStrEqual(node->name, BAD_CAST "option"))
{
xmlChar *name = xmlGetProp(node, BAD_CAST "name");
xmlChar *value = xmlGetProp(node, BAD_CAST "value");
if (name && value) {
options[std::string((const char*)name)] =
std::string((const char*)value);
}
if (name) xmlFree(name);
if (value) xmlFree(value);
}
}
xmlFreeDoc(doc);
}
void Configuration::write()
{
// Do not attempt to write to file that cannot be opened for writing
FILE *testFile = fopen(configPath.c_str(), "w");
if (!testFile) {
return;
}
else {
fclose(testFile);
}
xmlTextWriterPtr writer = xmlNewTextWriterFilename(configPath.c_str(), 0);
if (writer)
{
xmlTextWriterSetIndent(writer, 1);
xmlTextWriterStartDocument(writer, NULL, NULL, NULL);
xmlTextWriterStartElement(writer, BAD_CAST "configuration");
std::map<std::string, std::string>::iterator iter;
for (iter = options.begin(); iter != options.end(); iter++)
{
xmlTextWriterStartElement(writer, BAD_CAST "option");
xmlTextWriterWriteAttribute(writer,
BAD_CAST "name", BAD_CAST iter->first.c_str());
xmlTextWriterWriteAttribute(writer,
BAD_CAST "value", BAD_CAST iter->second.c_str());
xmlTextWriterEndElement(writer);
}
xmlTextWriterEndDocument(writer);
xmlFreeTextWriter(writer);
}
}
void Configuration::setValue(const std::string &key, std::string value)
{
LOG_DEBUG("Configuration::setValue(" << key << ", " << value << ")");
options[key] = value;
// Notify listeners
std::map<std::string, std::list<ConfigListener*> >::iterator list =
listeners.find(key);
if (list != listeners.end()) {
std::list<ConfigListener*>::iterator listener = (*list).second.begin();
while (listener != (*list).second.end())
{
(*listener)->optionChanged(key);
listener++;
}
}
}
void Configuration::setValue(const std::string &key, float value)
{
std::stringstream ss;
if (value == floor(value)) {
ss << (int)value;
} else {
ss << value;
}
setValue(key, ss.str());
}
std::string Configuration::getValue(const std::string &key, std::string deflt)
{
std::map<std::string, std::string>::iterator iter = options.find(key);
if (iter != options.end()) {
return (*iter).second;
}
return deflt;
}
float Configuration::getValue(const std::string &key, float deflt)
{
std::map<std::string, std::string>::iterator iter = options.find(key);
if (iter != options.end()) {
return atof((*iter).second.c_str());
}
return deflt;
}
void Configuration::addListener(
const std::string &key, ConfigListener *listener)
{
listeners[key].push_front(listener);
}
void Configuration::removeListener(
const std::string &key, ConfigListener *listener)
{
std::list<ConfigListener*>::iterator i = listeners[key].begin();
while (i != listeners[key].end())
{
if ((*i) == listener) {
listeners[key].erase(i);
return;
}
i++;
}
}
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