settings.h

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#ifndef TAGPARSER_SETTINGS_H
#define TAGPARSER_SETTINGS_H
 
#include "./tagtarget.h"
 
#include <c++utilities/misc/flagenumclass.h>
 
#include <cstdint>
#include <type_traits>
 
namespace TagParser {
 
enum class ElementPosition {
    BeforeData, 
    AfterData, 
    Keep, 
};

enum class TagUsage {
    Always, 
    KeepExisting, 
    Never, 
};

enum class TagCreationFlags : std::uint64_t {
    None = 0, 
    TreatUnknownFilesAsMp3Files = 1 << 0, 
    Id3InitOnCreate = 1 << 1, 
    Id3TransferValuesOnRemoval = 1 << 2, 
    MergeMultipleSuccessiveId3v2Tags = 1 << 3, 
    KeepExistingId3v2Version
    = 1 << 4, 
};
 
} // namespace TagParser
 
CPP_UTILITIES_MARK_FLAG_ENUM_CLASS(TagParser, TagParser::TagCreationFlags);
 
namespace TagParser {

struct TagCreationSettings {
    std::vector<TagTarget> requiredTargets = std::vector<TagTarget>();
    TagCreationFlags flags = TagCreationFlags::Id3TransferValuesOnRemoval | TagCreationFlags::MergeMultipleSuccessiveId3v2Tags
        | TagCreationFlags::KeepExistingId3v2Version;
    TagUsage id3v1usage = TagUsage::KeepExisting;
    TagUsage id3v2usage = TagUsage::Always;
    std::uint8_t id3v2MajorVersion = 3;
 
    // workaround for GGC bug 66297 (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66297)
#if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 2)
    inline
#else
    constexpr
#endif
        TagCreationSettings &setFlag(TagCreationFlags flag, bool enabled);
};
 
#if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 2)
inline
#else
constexpr
#endif
    TagCreationSettings &TagCreationSettings::setFlag(TagCreationFlags flag, bool enabled)
{
    if (enabled) {
        flags += flag;
    } else {
        flags -= flag;
    }
    return *this;
}
 
} // namespace TagParser
 
#endif // TAGPARSER_SETTINGS_H