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usersettings.cpp
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usersettings.cpp
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#include "usersettings.hpp"
#include <QTextStream>
#include <QDir>
#include <QString>
#include <QRegExp>
#include <QMap>
#include <QMessageBox>
#include <QTextCodec>
#include <QFile>
#include <components/files/configurationmanager.hpp>
#include "settingcontainer.hpp"
#include <boost/version.hpp>
/**
* Workaround for problems with whitespaces in paths in older versions of Boost library
*/
#if (BOOST_VERSION <= 104600)
namespace boost
{
template<>
inline boost::filesystem::path lexical_cast<boost::filesystem::path, std::string>(const std::string& arg)
{
return boost::filesystem::path(arg);
}
} /* namespace boost */
#endif /* (BOOST_VERSION <= 104600) */
CSMSettings::UserSettings *CSMSettings::UserSettings::mUserSettingsInstance = 0;
CSMSettings::UserSettings::UserSettings()
{
assert(!mUserSettingsInstance);
mUserSettingsInstance = this;
mReadWriteMessage = QObject::tr("<br><b>Could not open or create file for writing</b><br><br> \
Please make sure you have the right permissions and try again.<br>");
mReadOnlyMessage = QObject::tr("<br><b>Could not open file for reading</b><br><br> \
Please make sure you have the right permissions and try again.<br>");
buildEditorSettingDefaults();
}
void CSMSettings::UserSettings::buildEditorSettingDefaults()
{
SettingContainer *windowHeight = new SettingContainer("768", this);
SettingContainer *windowWidth = new SettingContainer("1024", this);
SettingContainer *rsDelegate = new SettingContainer("Icon and Text", this);
SettingContainer *refIdTypeDelegate = new SettingContainer("Icon and Text", this);
windowHeight->setObjectName ("Height");
windowWidth->setObjectName ("Width");
rsDelegate->setObjectName ("Record Status Display");
refIdTypeDelegate->setObjectName ("Referenceable ID Type Display");
SettingMap *displayFormatMap = new SettingMap;
SettingMap *windowSizeMap = new SettingMap;
displayFormatMap->insert (rsDelegate->objectName(), rsDelegate );
displayFormatMap->insert (refIdTypeDelegate->objectName(), refIdTypeDelegate);
windowSizeMap->insert (windowWidth->objectName(), windowWidth );
windowSizeMap->insert (windowHeight->objectName(), windowHeight );
mEditorSettingDefaults.insert ("Display Format", displayFormatMap);
mEditorSettingDefaults.insert ("Window Size", windowSizeMap);
}
CSMSettings::UserSettings::~UserSettings()
{
mUserSettingsInstance = 0;
}
QTextStream *CSMSettings::UserSettings::openFileStream (const QString &filePath, bool isReadOnly) const
{
QIODevice::OpenMode openFlags = QIODevice::Text;
if (isReadOnly)
openFlags = QIODevice::ReadOnly | openFlags;
else
openFlags = QIODevice::ReadWrite | QIODevice::Truncate | openFlags;
QFile *file = new QFile(filePath);
QTextStream *stream = 0;
if (file->open(openFlags))
{
stream = new QTextStream(file);
stream->setCodec(QTextCodec::codecForName("UTF-8"));
}
return stream;
}
bool CSMSettings::UserSettings::writeSettings(QMap<QString, CSMSettings::SettingList *> &settings)
{
QTextStream *stream = openFileStream(mUserFilePath);
bool success = (stream);
if (success)
{
QList<QString> keyList = settings.keys();
foreach (QString key, keyList)
{
SettingList *sectionSettings = settings[key];
*stream << "[" << key << "]" << '\n';
foreach (SettingContainer *item, *sectionSettings)
*stream << item->objectName() << " = " << item->getValue() << '\n';
}
stream->device()->close();
delete stream;
stream = 0;
}
else
{
displayFileErrorMessage(mReadWriteMessage, false);
}
return (success);
}
const CSMSettings::SectionMap &CSMSettings::UserSettings::getSectionMap() const
{
return mSectionSettings;
}
const CSMSettings::SettingMap *CSMSettings::UserSettings::getSettings(const QString §ionName) const
{
return getValidSettings(sectionName);
}
bool CSMSettings::UserSettings::loadFromFile(const QString &filePath)
{
if (filePath.isEmpty())
return false;
SectionMap loadedSettings;
QTextStream *stream = openFileStream (filePath, true);
bool success = (stream);
if (success)
{
//looks for a square bracket, "'\\["
//that has one or more "not nothing" in it, "([^]]+)"
//and is closed with a square bracket, "\\]"
QRegExp sectionRe("^\\[([^]]+)\\]");
//Find any character(s) that is/are not equal sign(s), "[^=]+"
//followed by an optional whitespace, an equal sign, and another optional whitespace, "\\s*=\\s*"
//and one or more periods, "(.+)"
QRegExp keyRe("^([^=]+)\\s*=\\s*(.+)$");
CSMSettings::SettingMap *settings = 0;
QString section = "none";
while (!stream->atEnd())
{
QString line = stream->readLine().simplified();
if (line.isEmpty() || line.startsWith("#"))
continue;
//if a section is found, push it onto a new QStringList
//and push the QStringList onto
if (sectionRe.exactMatch(line))
{
//add the previous section's settings to the member map
if (settings)
loadedSettings.insert(section, settings);
//save new section and create a new list
section = sectionRe.cap(1);
settings = new SettingMap;
continue;
}
if (keyRe.indexIn(line) != -1)
{
SettingContainer *sc = new SettingContainer (keyRe.cap(2).simplified());
sc->setObjectName(keyRe.cap(1).simplified());
(*settings)[keyRe.cap(1).simplified()] = sc;
}
}
loadedSettings.insert(section, settings);
stream->device()->close();
delete stream;
stream = 0;
}
mergeMap (loadedSettings);
return success;
}
void CSMSettings::UserSettings::mergeMap (const CSMSettings::SectionMap §ionSettings)
{
foreach (QString key, sectionSettings.uniqueKeys())
{
// insert entire section if it does not already exist in the loaded files
if (mSectionSettings.find(key) == mSectionSettings.end())
mSectionSettings.insert(key, sectionSettings.value(key));
else
{
SettingMap *passedSettings = sectionSettings.value(key);
SettingMap *settings = mSectionSettings.value(key);
foreach (QString key2, passedSettings->uniqueKeys())
{
//insert section settings individially if they do not already exist
if (settings->find(key2) == settings->end())
settings->insert(key2, passedSettings->value(key2));
else
{
settings->value(key2)->update(passedSettings->value(key2)->getValue());
}
}
}
}
}
void CSMSettings::UserSettings::loadSettings (const QString &fileName)
{
mSectionSettings.clear();
//global
QString globalFilePath = QString::fromStdString(mCfgMgr.getGlobalPath().string()) + fileName;
bool globalOk = loadFromFile(globalFilePath);
//local
QString localFilePath = QString::fromStdString(mCfgMgr.getLocalPath().string()) + fileName;
bool localOk = loadFromFile(localFilePath);
//user
mUserFilePath = QString::fromStdString(mCfgMgr.getUserConfigPath().string()) + fileName;
loadFromFile(mUserFilePath);
if (!(localOk || globalOk))
{
QString message = QObject::tr("<br><b>Could not open user settings files for reading</b><br><br> \
Global and local settings files could not be read.\
You may have incorrect file permissions or the OpenCS installation may be corrupted.<br>");
message += QObject::tr("<br>Global filepath: ") + globalFilePath;
message += QObject::tr("<br>Local filepath: ") + localFilePath;
displayFileErrorMessage ( message, true);
}
}
void CSMSettings::UserSettings::updateSettings (const QString §ionName, const QString &settingName)
{
SettingMap *settings = getValidSettings(sectionName);
if (!settings)
return;
if (settingName.isEmpty())
{
foreach (const SettingContainer *setting, *settings)
emit signalUpdateEditorSetting (setting->objectName(), setting->getValue());
}
else
{
if (settings->find(settingName) != settings->end())
{
const SettingContainer *setting = settings->value(settingName);
emit signalUpdateEditorSetting (setting->objectName(), setting->getValue());
}
}
}
QString CSMSettings::UserSettings::getSetting (const QString §ion, const QString &setting) const
{
SettingMap *settings = getValidSettings(section);
QString retVal = "";
if (settings->find(setting) != settings->end())
retVal = settings->value(setting)->getValue();
return retVal;
}
CSMSettings::UserSettings& CSMSettings::UserSettings::instance()
{
assert(mUserSettingsInstance);
return *mUserSettingsInstance;
}
void CSMSettings::UserSettings::displayFileErrorMessage(const QString &message, bool isReadOnly)
{
// File cannot be opened or created
QMessageBox msgBox;
msgBox.setWindowTitle(QObject::tr("OpenCS configuration file I/O error"));
msgBox.setIcon(QMessageBox::Critical);
msgBox.setStandardButtons(QMessageBox::Ok);
if (!isReadOnly)
msgBox.setText (mReadWriteMessage + message);
else
msgBox.setText (message);
msgBox.exec();
}
CSMSettings::SettingMap *
CSMSettings::UserSettings::getValidSettings (const QString §ionName) const
{
SettingMap *settings = 0;
//copy the default values for the entire section if it's not found
if (mSectionSettings.find(sectionName) == mSectionSettings.end())
{
if (mEditorSettingDefaults.find(sectionName) != mEditorSettingDefaults.end())
settings = mEditorSettingDefaults.value (sectionName);
}
//otherwise, iterate the section's settings, looking for missing values and replacing them with defaults.
else
{
SettingMap *loadedSettings = mSectionSettings[sectionName];
SettingMap *defaultSettings = mEditorSettingDefaults[sectionName];
foreach (QString key, defaultSettings->uniqueKeys())
{
//write the default value to the loaded settings
if (loadedSettings->find((key))==loadedSettings->end())
loadedSettings->insert(key, defaultSettings->value(key));
}
settings = mSectionSettings.value (sectionName);
}
return settings;
}