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Rewrite game settings manager

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Removes the abhorrent dependency on Ogre for this code and improves the error handling.
celladd
scrawl 10 years ago
parent 6ea59c93ab
commit 27dc49a135
7 changed files with 137 additions and 119 deletions
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6
apps/openmw/engine.cpp
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@ -292,14 +292,10 @@ std::string OMW::Engine::loadSettings (Settings::Manager & settings)
else else
throw std::runtime_error ("No default settings file found! Make sure the file \"settings-default.cfg\" was properly installed."); throw std::runtime_error ("No default settings file found! Make sure the file \"settings-default.cfg\" was properly installed.");
// load user settings if they exist, otherwise just load the default settings as user settings // load user settings if they exist
const std::string settingspath = mCfgMgr.getUserConfigPath().string() + "/settings.cfg"; const std::string settingspath = mCfgMgr.getUserConfigPath().string() + "/settings.cfg";
if (boost::filesystem::exists(settingspath)) if (boost::filesystem::exists(settingspath))
settings.loadUser(settingspath); settings.loadUser(settingspath);
else if (boost::filesystem::exists(localdefault))
settings.loadUser(localdefault);
else if (boost::filesystem::exists(globaldefault))
settings.loadUser(globaldefault);
mFpsLevel = settings.getInt("fps", "HUD"); mFpsLevel = settings.getInt("fps", "HUD");

4
apps/openmw/mwbase/inputmanager.hpp
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@ -2,6 +2,8 @@
#define GAME_MWBASE_INPUTMANAGER_H #define GAME_MWBASE_INPUTMANAGER_H
#include <string> #include <string>
#include <set>
#include <vector>
namespace MWBase namespace MWBase
{ {
@ -27,7 +29,7 @@ namespace MWBase
virtual void changeInputMode(bool guiMode) = 0; virtual void changeInputMode(bool guiMode) = 0;
virtual void processChangedSettings(const std::vector< std::pair<std::string, std::string> >& changed) = 0; virtual void processChangedSettings(const std::set< std::pair<std::string, std::string> >& changed) = 0;
virtual void setDragDrop(bool dragDrop) = 0; virtual void setDragDrop(bool dragDrop) = 0;

4
apps/openmw/mwbase/soundmanager.hpp
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@ -2,7 +2,7 @@
#define GAME_MWBASE_SOUNDMANAGER_H #define GAME_MWBASE_SOUNDMANAGER_H
#include <string> #include <string>
#include <set>
#include <boost/shared_ptr.hpp> #include <boost/shared_ptr.hpp>
#include "../mwworld/ptr.hpp" #include "../mwworld/ptr.hpp"
@ -72,7 +72,7 @@ namespace MWBase
virtual ~SoundManager() {} virtual ~SoundManager() {}
virtual void processChangedSettings(const std::vector< std::pair<std::string, std::string> >& settings) = 0; virtual void processChangedSettings(const std::set< std::pair<std::string, std::string> >& settings) = 0;
virtual void stopMusic() = 0; virtual void stopMusic() = 0;
///< Stops music if it's playing ///< Stops music if it's playing

2
apps/openmw/mwbase/windowmanager.hpp
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@ -271,7 +271,7 @@ namespace MWBase
*/ */
virtual std::string getGameSettingString(const std::string &id, const std::string &default_) = 0; virtual std::string getGameSettingString(const std::string &id, const std::string &default_) = 0;
virtual void processChangedSettings(const std::vector< std::pair<std::string, std::string> >& changed) = 0; virtual void processChangedSettings(const std::set< std::pair<std::string, std::string> >& changed) = 0;
virtual void windowResized(int x, int y) = 0; virtual void windowResized(int x, int y) = 0;

3
apps/openmw/mwbase/world.hpp
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@ -3,6 +3,7 @@
#include <vector> #include <vector>
#include <map> #include <map>
#include <set>
#include <components/esm/cellid.hpp> #include <components/esm/cellid.hpp>
@ -386,7 +387,7 @@ namespace MWBase
virtual bool canPlaceObject (float cursorX, float cursorY) = 0; virtual bool canPlaceObject (float cursorX, float cursorY) = 0;
///< @return true if it is possible to place on object at specified cursor location ///< @return true if it is possible to place on object at specified cursor location
virtual void processChangedSettings (const std::vector< std::pair<std::string, std::string> >& settings) = 0; virtual void processChangedSettings (const std::set< std::pair<std::string, std::string> >& settings) = 0;
virtual bool isFlying(const MWWorld::Ptr &ptr) const = 0; virtual bool isFlying(const MWWorld::Ptr &ptr) const = 0;
virtual bool isSlowFalling(const MWWorld::Ptr &ptr) const = 0; virtual bool isSlowFalling(const MWWorld::Ptr &ptr) const = 0;

206
components/settings/settings.cpp
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@ -1,95 +1,144 @@
#include "settings.hpp" #include "settings.hpp"
#include <stdexcept> #include <stdexcept>
#include <boost/filesystem/path.hpp>
#include <boost/filesystem/fstream.hpp>
#include <OgreResourceGroupManager.h>
#include <OgreStringConverter.h> #include <OgreStringConverter.h>
#include <OgreDataStream.h>
#include <components/files/constrainedfiledatastream.hpp> #include <boost/filesystem/fstream.hpp>
#include <boost/filesystem/path.hpp>
using namespace Settings; #include <boost/algorithm/string.hpp>
namespace bfs = boost::filesystem; namespace Settings
{
Ogre::ConfigFile Manager::mFile = Ogre::ConfigFile(); CategorySettingValueMap Manager::mDefaultSettings = CategorySettingValueMap();
Ogre::ConfigFile Manager::mDefaultFile = Ogre::ConfigFile(); CategorySettingValueMap Manager::mUserSettings = CategorySettingValueMap();
CategorySettingVector Manager::mChangedSettings = CategorySettingVector(); CategorySettingVector Manager::mChangedSettings = CategorySettingVector();
CategorySettingValueMap Manager::mNewSettings = CategorySettingValueMap();
void Manager::loadUser (const std::string& file)
{
Ogre::DataStreamPtr stream = openConstrainedFileDataStream(file.c_str());
mFile.load(stream);
}
void Manager::loadDefault (const std::string& file) class SettingsFileParser
{ {
Ogre::DataStreamPtr stream = openConstrainedFileDataStream(file.c_str()); public:
mDefaultFile.load(stream); SettingsFileParser() : mLine(0) {}
}
void Manager::saveUser(const std::string& file) void loadSettingsFile (const std::string& file, CategorySettingValueMap& settings)
{
mFile = file;
boost::filesystem::ifstream stream;
stream.open(boost::filesystem::path(file));
std::string currentCategory;
mLine = 0;
while (!stream.eof() && !stream.fail())
{ {
bfs::ofstream fout((bfs::path(file))); ++mLine;
std::string line;
std::getline( stream, line );
size_t i = 0;
if (!skipWhiteSpace(i, line))
continue;
Ogre::ConfigFile::SectionIterator seci = mFile.getSectionIterator(); if (line[i] == '#') // skip comment
continue;
while (seci.hasMoreElements()) if (line[i] == '[')
{ {
Ogre::String sectionName = seci.peekNextKey(); size_t end = line.find(']', i);
if (end == std::string::npos)
fail("unterminated category");
if (sectionName.length() > 0) currentCategory = line.substr(i+1, end - (i+1));
fout << '\n' << '[' << seci.peekNextKey() << ']' << '\n'; boost::algorithm::trim(currentCategory);
i = end+1;
}
Ogre::ConfigFile::SettingsMultiMap *settings = seci.getNext(); if (!skipWhiteSpace(i, line))
Ogre::ConfigFile::SettingsMultiMap::iterator i; continue;
for (i = settings->begin(); i != settings->end(); ++i)
{ if (currentCategory.empty())
fout << i->first.c_str() << " = " << i->second.c_str() << '\n'; fail("empty category name");
size_t settingEnd = line.find('=', i);
if (settingEnd == std::string::npos)
fail("unterminated setting name");
std::string setting = line.substr(i, (settingEnd-i));
boost::algorithm::trim(setting);
size_t valueBegin = settingEnd+1;
std::string value = line.substr(valueBegin);
boost::algorithm::trim(value);
if (settings.insert(std::make_pair(std::make_pair(currentCategory, setting), value)).second == false)
fail(std::string("duplicate setting: [" + currentCategory + "] " + setting));
}
} }
CategorySettingValueMap::iterator it = mNewSettings.begin(); private:
while (it != mNewSettings.end()) /// Increment i until it longer points to a whitespace character
/// in the string or has reached the end of the string.
/// @return false if we have reached the end of the string
bool skipWhiteSpace(size_t& i, std::string& str)
{ {
if (it->first.first == sectionName) while (i < str.size() && std::isspace(str[i], std::locale::classic()))
{ {
fout << it->first.second << " = " << it->second << '\n'; ++i;
mNewSettings.erase(it++);
}
else
++it;
} }
return i < str.size();
} }
std::string category = ""; void fail(const std::string& message)
for (CategorySettingValueMap::iterator it = mNewSettings.begin();
it != mNewSettings.end(); ++it)
{ {
if (category != it->first.first) std::stringstream error;
error << "Error on line " << mLine << " in " << mFile << ":\n" << message;
throw std::runtime_error(error.str());
}
std::string mFile;
int mLine;
};
void Manager::loadDefault(const std::string &file)
{ {
category = it->first.first; SettingsFileParser parser;
fout << '\n' << '[' << category << ']' << '\n'; parser.loadSettingsFile(file, mDefaultSettings);
} }
fout << it->first.second << " = " << it->second << '\n';
void Manager::loadUser(const std::string &file)
{
SettingsFileParser parser;
parser.loadSettingsFile(file, mUserSettings);
} }
fout.close(); void Manager::saveUser(const std::string &file)
{
boost::filesystem::ofstream stream;
stream.open(boost::filesystem::path(file));
std::string currentCategory;
for (CategorySettingValueMap::iterator it = mUserSettings.begin(); it != mUserSettings.end(); ++it)
{
if (it->first.first != currentCategory)
{
currentCategory = it->first.first;
stream << "\n[" << currentCategory << "]\n";
}
stream << it->first.second << " = " << it->second << "\n";
}
} }
std::string Manager::getString(const std::string &setting, const std::string &category) std::string Manager::getString(const std::string &setting, const std::string &category)
{ {
if (mNewSettings.find(std::make_pair(category, setting)) != mNewSettings.end()) CategorySettingValueMap::key_type key = std::make_pair(category, setting);
return mNewSettings[std::make_pair(category, setting)]; CategorySettingValueMap::iterator it = mUserSettings.find(key);
if (it != mUserSettings.end())
return it->second;
std::string defaultval = mDefaultFile.getSetting(setting, category, "NOTFOUND"); it = mDefaultSettings.find(key);
std::string val = mFile.getSetting(setting, category, defaultval); if (it != mDefaultSettings.end())
return it->second;
if (val == "NOTFOUND") throw std::runtime_error(std::string("Trying to retrieve a non-existing setting: ") + setting
throw std::runtime_error("Trying to retrieve a non-existing setting: " + setting + " Make sure the settings-default.cfg file was properly installed."); + ".\nMake sure the settings-default.cfg file file was properly installed.");
return val;
} }
float Manager::getFloat (const std::string& setting, const std::string& category) float Manager::getFloat (const std::string& setting, const std::string& category)
@ -109,49 +158,18 @@ bool Manager::getBool (const std::string& setting, const std::string& category)
void Manager::setString(const std::string &setting, const std::string &category, const std::string &value) void Manager::setString(const std::string &setting, const std::string &category, const std::string &value)
{ {
CategorySetting s = std::make_pair(category, setting); CategorySettingValueMap::key_type key = std::make_pair(category, setting);
bool found=false;
try
{
Ogre::ConfigFile::SettingsIterator it = mFile.getSettingsIterator(category);
while (it.hasMoreElements())
{
Ogre::ConfigFile::SettingsMultiMap::iterator i = it.current();
if ((*i).first == setting) CategorySettingValueMap::iterator found = mUserSettings.find(key);
{ if (found != mUserSettings.end())
if ((*i).second != value)
{ {
mChangedSettings.push_back(std::make_pair(category, setting)); if (found->second == value)
(*i).second = value; return;
}
found = true;
} }
it.getNext(); mUserSettings[key] = value;
}
}
catch (Ogre::Exception&)
{}
if (!found) mChangedSettings.insert(key);
{
if (mNewSettings.find(s) != mNewSettings.end())
{
if (mNewSettings[s] != value)
{
mChangedSettings.push_back(std::make_pair(category, setting));
mNewSettings[s] = value;
}
}
else
{
if (mDefaultFile.getSetting(setting, category) != value)
mChangedSettings.push_back(std::make_pair(category, setting));
mNewSettings[s] = value;
}
}
} }
void Manager::setInt (const std::string& setting, const std::string& category, const int value) void Manager::setInt (const std::string& setting, const std::string& category, const int value)
@ -175,3 +193,5 @@ const CategorySettingVector Manager::apply()
mChangedSettings.clear(); mChangedSettings.clear();
return vec; return vec;
} }
}

13
components/settings/settings.hpp
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@ -1,12 +1,14 @@
#ifndef COMPONENTS_SETTINGS_H #ifndef COMPONENTS_SETTINGS_H
#define COMPONENTS_SETTINGS_H #define COMPONENTS_SETTINGS_H
#include <OgreConfigFile.h> #include <set>
#include <map>
#include <string>
namespace Settings namespace Settings
{ {
typedef std::pair < std::string, std::string > CategorySetting; typedef std::pair < std::string, std::string > CategorySetting;
typedef std::vector< std::pair<std::string, std::string> > CategorySettingVector; typedef std::set< std::pair<std::string, std::string> > CategorySettingVector;
typedef std::map < CategorySetting, std::string > CategorySettingValueMap; typedef std::map < CategorySetting, std::string > CategorySettingValueMap;
/// ///
@ -15,15 +17,12 @@ namespace Settings
class Manager class Manager
{ {
public: public:
static Ogre::ConfigFile mFile; static CategorySettingValueMap mDefaultSettings;
static Ogre::ConfigFile mDefaultFile; static CategorySettingValueMap mUserSettings;
static CategorySettingVector mChangedSettings; static CategorySettingVector mChangedSettings;
///< tracks all the settings that were changed since the last apply() call ///< tracks all the settings that were changed since the last apply() call
static CategorySettingValueMap mNewSettings;
///< tracks all the settings that are in the default file, but not in user file yet
void loadDefault (const std::string& file); void loadDefault (const std::string& file);
///< load file as the default settings (can be overridden by user settings) ///< load file as the default settings (can be overridden by user settings)

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