48 lines
1.5 KiB
C++
Executable file
48 lines
1.5 KiB
C++
Executable file
// For license of this file, see <project-root-folder>/LICENSE.md.
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#ifndef TEXTFACTORY_H
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#define TEXTFACTORY_H
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#include "definitions/definitions.h"
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#include <QDateTime>
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#include <QFontMetrics>
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class TextFactory {
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private:
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// Constructors and destructors.
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TextFactory();
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public:
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// Returns true if lhs is smaller than rhs if case-insensitive string comparison is used.
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static inline bool isCaseInsensitiveLessThan(const QString& lhs, const QString& rhs) {
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return lhs.toLower() < rhs.toLower();
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}
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static int stringHeight(const QString& string, const QFontMetrics& metrics);
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static int stringWidth(const QString& string, const QFontMetrics& metrics);
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// Tries to parse input textual date/time representation.
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// Returns invalid date/time if processing fails.
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// NOTE: This method tries to always return time in UTC+00:00.
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static QDateTime parseDateTime(const QString& date_time);
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// Converts 1970-epoch miliseconds to date/time.
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// NOTE: This apparently returns date/time in localtime.
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static QDateTime parseDateTime(qint64 milis_from_epoch);
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static QString encrypt(const QString& text);
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static QString decrypt(const QString& text);
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static QString newline();
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// Shortens input string according to given length limit.
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static QString shorten(const QString& input, int text_length_limit = TEXT_TITLE_LIMIT);
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private:
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static quint64 initializeSecretEncryptionKey();
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static quint64 generateSecretEncryptionKey();
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static quint64 s_encryptionKey;
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};
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#endif // TEXTFACTORY_H
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