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#ifndef PSETTINGS_H
#define PSETTINGS_H
#include <QSettings>
#include <QString>
#include <map>
/**
* This is a small class that can be used to store INI settings in memory since
* QSettings is a pain to use without an actual file.
*
* It is a much simpler structure since it stores everything as string.
*/
struct PSettings
{
/**
*
*/
PSettings() = default;
public: // Value read/write.
/**
* @brief Set the value of the given section/key.
*
* @param section The section of the value.
* @param key The key of the value.
* @param value The value to set.
*/
void setValue(QString section, QString key, QString value)
{
m_Values[std::make_pair(section, key)] = value;
}
/**
* @brief Return the value at the given section/key.
*
* @param section The section of the value.
* @param key The key of the value.
*
* @return the corresponding value, or an empty string if the section/key does not
* exist.
*/
QString value(QString section, QString key) const
{
auto it = m_Values.find(std::make_pair(section, key));
return it == m_Values.end() ? QString() : it->second;
}
/**
* @brief Check if the given section/key exists in these settings.
*
* @param section The section of the value.
* @param key The key of the value.
*
* @return true if the section/key exist.
*/
bool hasValue(QString section, QString key) const
{
return m_Values.find(std::make_pair(section, key)) != m_Values.end();
}
public: // Output:
/**
* @brief Convert this PSettings to a string.
*
* @return a string representing the content of a valid INI file corresponding
* to this PSettings.
*/
QString toString() const
{
QString result = "";
QString cSection;
for (auto& p : m_Values) {
if (cSection != p.first.first) {
if (!cSection.isEmpty()) {
result += '\n';
}
cSection = p.first.first;
result += "[" + cSection + "]\n";
}
result += p.first.second + "=" + p.second + "\n";
}
return result;
}
/**
* @brief Update the given QSettings with all the value in this.
*
* @param settings The settings to update.
*/
void update(QSettings& settings) const
{
for (auto& p : m_Values) {
if (p.first.first == "General") {
settings.setValue(p.first.second, p.second);
} else {
settings.setValue(p.first.first + "/" + p.first.second, p.second);
}
}
}
private:
// Map from <section, key> to value:
std::map<std::pair<QString, QString>, QString> m_Values;
};
#endif // !PSETTINGS_H
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