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** GNU Lesser General Public License Usage
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#include "settings.h"

#include <QtCore/QSettings>

static const char syntaxKey[] = "Syntax";
static const char minimalKey[] = "Minimal";
static const char caseSensitiveKey[] = "CaseSensitive";
static const char patternKey[] = "Patterns";
static const char currentPatternKey[] = "CurrentPattern";
static const char matchKey[] = "Matches";
static const char currentMatchKey[] = "CurrentMatch";
static const char patternDefault[] = "[A-Za-z_]+([A-Za-z_0-9]*)";
static const char matchDefault[] = "(10 + delta4) * 32";
static const char settingsGroup[] = "RegExp";

namespace RegExp {
namespace Internal {

Settings::Settings() :
    m_patternSyntax(QRegExp::RegExp),
    m_minimal(false),
    m_caseSensitive(true),
    m_patterns(QLatin1String(patternDefault)),
    m_currentPattern(m_patterns.front()),
    m_matches(QLatin1String(matchDefault)),
    m_currentMatch(m_matches.front())
{
}

void Settings::clear()
{
    *this = Settings();
}

void Settings::fromQSettings(QSettings *s)
{
    clear();
    s->beginGroup(QLatin1String(settingsGroup));
    m_patternSyntax = static_cast<QRegExp::PatternSyntax>(s->value(QLatin1String(syntaxKey), m_patternSyntax).toInt());
    m_minimal = s->value(QLatin1String(minimalKey), m_minimal).toBool();
    m_caseSensitive = s->value(QLatin1String(caseSensitiveKey), m_caseSensitive).toBool();
    m_patterns = s->value(QLatin1String(patternKey), m_patterns).toStringList();
    m_currentPattern = s->value(QLatin1String(currentPatternKey), m_currentPattern).toString();
    m_matches = s->value(QLatin1String(matchKey), m_matches).toStringList();
    m_currentMatch = s->value(QLatin1String(currentMatchKey), m_currentMatch).toString();
    s->endGroup();
}

void Settings::toQSettings(QSettings *s) const
{
    s->beginGroup(QLatin1String(settingsGroup));
    s->setValue(QLatin1String(syntaxKey), m_patternSyntax);
    s->setValue(QLatin1String(minimalKey), m_minimal);
    s->setValue(QLatin1String(caseSensitiveKey), m_caseSensitive);
    s->setValue(QLatin1String(patternKey), m_patterns);
    s->setValue(QLatin1String(currentPatternKey), m_currentPattern);
    s->setValue(QLatin1String(matchKey), m_matches);
    s->setValue(QLatin1String(currentMatchKey), m_currentMatch);
    s->endGroup();
}

} // namespace Internal
} // namespace Settings;