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Drop settings backup handling and migrating commands (hluk#2237)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,126 +1,20 @@ | ||
| // SPDX-License-Identifier: GPL-3.0-or-later | ||
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| #ifndef SETTINGS_H | ||
| #define SETTINGS_H | ||
| #pragma once | ||
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| #include <QSettings> | ||
| #include <QString> | ||
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| /** | ||
| * Wrapper for safer QSettings() handling. | ||
| * | ||
| * For more safety, this should be instantiated only from main application thread. | ||
| * | ||
| * Stores and reads values from application settings copy. Updates the application | ||
| * settings when destroyed. | ||
| * | ||
| * Special file is used to designate whether application settings or its copy is valid. | ||
| * | ||
| * While special file doesn't exist, the application settings is valid. | ||
| * | ||
| * While special file exists, copy is valid and application settings is not. | ||
| * | ||
| * When created: | ||
| * - if last save was unsuccessful, restores copy of application settings, | ||
| * - if last save was successful, copies application settings and uses this copy. | ||
| * | ||
| * When destroyed: | ||
| * - synchronizes the underlying copy of application settings, | ||
| * - creates special file, | ||
| * - copies settings from copy to real application settings and flushes it, | ||
| * - deletes special file. | ||
| * Simple wrapper class for QSettings. | ||
| */ | ||
| class Settings final | ||
| class Settings final : public QSettings | ||
| { | ||
| public: | ||
| static bool canModifySettings; | ||
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| static bool isEmpty(const QSettings &settings); | ||
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| Settings(); | ||
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| explicit Settings(const QString &path); | ||
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| ~Settings(); | ||
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| bool isEmpty() const { return isEmpty(m_settings); } | ||
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| bool contains(const QString &name) const { return m_settings.contains(name); } | ||
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| QVariant value(const QString &name) const { return m_settings.value(name); } | ||
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| void setValue(const QString &name, const QVariant &value) { | ||
| m_changed = true; | ||
| m_settings.setValue(name, value); | ||
| } | ||
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| void remove(const QString &name) { | ||
| m_changed = true; | ||
| m_settings.remove(name); | ||
| } | ||
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| void clear() { | ||
| m_changed = true; | ||
| m_settings.clear(); | ||
| } | ||
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| void beginGroup(const QString &prefix) { | ||
| m_settings.beginGroup(prefix); | ||
| } | ||
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| void endGroup() { | ||
| m_settings.endGroup(); | ||
| } | ||
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| QStringList allKeys() { | ||
| return m_settings.allKeys(); | ||
| } | ||
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| int beginReadArray(const QString &prefix) { | ||
| return m_settings.beginReadArray(prefix); | ||
| } | ||
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| void beginWriteArray(const QString &prefix, int size = -1) { | ||
| m_changed = true; | ||
| m_settings.beginWriteArray(prefix, size); | ||
| } | ||
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| void endArray() { | ||
| m_settings.endArray(); | ||
| } | ||
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| void setArrayIndex(int i) { | ||
| m_settings.setArrayIndex(i); | ||
| } | ||
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| QString fileName() const { | ||
| return m_settings.fileName(); | ||
| } | ||
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| QSettings *settingsData() { | ||
| m_changed = true; | ||
| return &m_settings; | ||
| } | ||
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| QSettings &constSettingsData() { return m_settings; } | ||
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| Settings(const Settings &) = delete; | ||
| Settings &operator=(const Settings &) = delete; | ||
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| void restore(); | ||
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| private: | ||
| void restore(const QSettings &settings); | ||
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| void save(); | ||
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| QSettings m_settings; | ||
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| /// True only if QSetting data changed and need to be synced. | ||
| bool m_changed; | ||
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| QString m_path; | ||
| }; | ||
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| #endif // SETTINGS_H |
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