mirror of
https://github.com/taglib/taglib.git
synced 2025-11-16 22:52:57 -05:00
Moved somethings from global to anonymous namespace.
This commit is contained in:
Tsuda Kageyu
@ -62,294 +62,298 @@ using TagLib::ushort;
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* Maybe if this is useful to other formats these classes can be moved to
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* their own public files.
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*/
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class Reader
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namespace
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{
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public:
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virtual ~Reader()
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class Reader
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{
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}
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/*!
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* Reads associated values from \a file, but never reads more
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* then \a limit bytes.
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*/
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virtual uint read(TagLib::File &file, uint limit) = 0;
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/*!
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* Returns the number of bytes this reader would like to read.
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*/
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virtual uint size() const = 0;
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};
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class SkipReader : public Reader
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{
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public:
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SkipReader(uint size) : m_size(size)
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{
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}
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uint read(TagLib::File &file, uint limit)
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{
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uint count = std::min(m_size, limit);
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file.seek(count, TagLib::File::Current);
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return count;
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}
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uint size() const
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{
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return m_size;
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}
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private:
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uint m_size;
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};
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template<typename T>
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class ValueReader : public Reader
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{
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public:
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ValueReader(T &value) : value(value)
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{
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}
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protected:
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T &value;
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};
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class StringReader : public ValueReader<String>
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{
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public:
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StringReader(String &string, uint size) :
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ValueReader<String>(string), m_size(size)
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{
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}
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uint read(TagLib::File &file, uint limit)
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{
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ByteVector data = file.readBlock(std::min(m_size, limit));
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size_t count = data.size();
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const size_t index = data.find((char) 0);
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if(index != ByteVector::npos) {
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data.resize(index);
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public:
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virtual ~Reader()
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{
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}
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data.replace((char) 0xff, ' ');
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value = data;
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return static_cast<uint>(count);
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}
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uint size() const
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/*!
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* Reads associated values from \a file, but never reads more
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* then \a limit bytes.
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*/
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virtual uint read(TagLib::File &file, uint limit) = 0;
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/*!
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* Returns the number of bytes this reader would like to read.
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*/
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virtual uint size() const = 0;
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};
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class SkipReader : public Reader
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{
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return m_size;
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}
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private:
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uint m_size;
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};
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class ByteReader : public ValueReader<uchar>
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{
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public:
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ByteReader(uchar &byte) : ValueReader<uchar>(byte) {}
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uint read(TagLib::File &file, uint limit)
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{
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ByteVector data = file.readBlock(std::min(1U,limit));
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if(data.size() > 0) {
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value = data[0];
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public:
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SkipReader(uint size) : m_size(size)
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{
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}
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return static_cast<uint>(data.size());
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}
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uint size() const
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{
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return 1;
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}
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};
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template<typename T>
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class NumberReader : public ValueReader<T>
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{
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public:
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NumberReader(T &value, bool bigEndian) :
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ValueReader<T>(value), bigEndian(bigEndian)
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{
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}
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protected:
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bool bigEndian;
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};
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class U16Reader : public NumberReader<ushort>
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{
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public:
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U16Reader(ushort &value, bool bigEndian)
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: NumberReader<ushort>(value, bigEndian) {}
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uint read(TagLib::File &file, uint limit)
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{
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ByteVector data = file.readBlock(std::min(2U,limit));
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if(bigEndian)
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value = data.toUInt16BE(0);
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else
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value = data.toUInt16LE(0);
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return static_cast<uint>(data.size());
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}
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uint size() const
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{
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return 2;
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}
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};
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class U32Reader : public NumberReader<uint>
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{
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public:
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U32Reader(uint &value, bool bigEndian = true) :
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NumberReader<uint>(value, bigEndian)
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{
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}
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uint read(TagLib::File &file, uint limit)
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{
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ByteVector data = file.readBlock(std::min(4U,limit));
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if(bigEndian)
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value = data.toUInt32BE(0);
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else
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value = data.toUInt32LE(0);
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return static_cast<uint>(data.size());
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}
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uint size() const
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{
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return 4;
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}
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};
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class StructReader : public Reader
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{
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public:
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StructReader()
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{
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m_readers.setAutoDelete(true);
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}
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/*!
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* Add a nested reader. This reader takes ownership.
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*/
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StructReader &reader(Reader *reader)
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{
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m_readers.append(reader);
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return *this;
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}
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/*!
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* Don't read anything but skip \a size bytes.
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*/
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StructReader &skip(uint size)
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{
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m_readers.append(new SkipReader(size));
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return *this;
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}
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/*!
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* Read a string of \a size characters (bytes) into \a string.
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*/
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StructReader &string(String &string, uint size)
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{
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m_readers.append(new StringReader(string, size));
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return *this;
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}
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/*!
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* Read a byte into \a byte.
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*/
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StructReader &byte(uchar &byte)
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{
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m_readers.append(new ByteReader(byte));
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return *this;
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}
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/*!
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* Read a unsigned 16 Bit integer into \a number. The byte order
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* is controlled by \a bigEndian.
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*/
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StructReader &u16(ushort &number, bool bigEndian)
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{
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m_readers.append(new U16Reader(number, bigEndian));
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return *this;
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}
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/*!
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* Read a unsigned 16 Bit little endian integer into \a number.
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*/
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StructReader &u16L(ushort &number)
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{
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return u16(number, false);
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}
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/*!
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* Read a unsigned 16 Bit big endian integer into \a number.
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*/
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StructReader &u16B(ushort &number)
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{
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return u16(number, true);
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}
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/*!
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* Read a unsigned 32 Bit integer into \a number. The byte order
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* is controlled by \a bigEndian.
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*/
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StructReader &u32(uint &number, bool bigEndian)
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{
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m_readers.append(new U32Reader(number, bigEndian));
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return *this;
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}
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/*!
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* Read a unsigned 32 Bit little endian integer into \a number.
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*/
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StructReader &u32L(uint &number)
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{
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return u32(number, false);
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}
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/*!
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* Read a unsigned 32 Bit big endian integer into \a number.
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*/
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StructReader &u32B(uint &number)
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{
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return u32(number, true);
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}
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uint size() const
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{
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uint size = 0;
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for(List<Reader*>::ConstIterator i = m_readers.begin();
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i != m_readers.end(); ++ i) {
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size += (*i)->size();
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uint read(TagLib::File &file, uint limit)
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{
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uint count = std::min(m_size, limit);
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file.seek(count, TagLib::File::Current);
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return count;
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}
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return size;
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}
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uint read(TagLib::File &file, uint limit)
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{
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uint sumcount = 0;
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for(List<Reader*>::Iterator i = m_readers.begin();
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limit > 0 && i != m_readers.end(); ++ i) {
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uint count = (*i)->read(file, limit);
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limit -= count;
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sumcount += count;
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uint size() const
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{
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return m_size;
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}
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return sumcount;
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}
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private:
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List<Reader*> m_readers;
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};
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private:
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uint m_size;
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};
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template<typename T>
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class ValueReader : public Reader
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{
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public:
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ValueReader(T &value) : value(value)
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{
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}
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protected:
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T &value;
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};
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class StringReader : public ValueReader<String>
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{
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public:
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StringReader(String &string, uint size) :
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ValueReader<String>(string), m_size(size)
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{
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}
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uint read(TagLib::File &file, uint limit)
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{
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ByteVector data = file.readBlock(std::min(m_size, limit));
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size_t count = data.size();
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const size_t index = data.find((char) 0);
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if(index != ByteVector::npos) {
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data.resize(index);
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}
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data.replace((char) 0xff, ' ');
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value = data;
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return static_cast<uint>(count);
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}
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uint size() const
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{
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return m_size;
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}
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private:
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uint m_size;
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};
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class ByteReader : public ValueReader<uchar>
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{
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public:
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ByteReader(uchar &byte) : ValueReader<uchar>(byte) {}
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uint read(TagLib::File &file, uint limit)
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{
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ByteVector data = file.readBlock(std::min(1U,limit));
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if(data.size() > 0) {
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value = data[0];
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}
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return static_cast<uint>(data.size());
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}
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uint size() const
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{
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return 1;
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}
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};
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template<typename T>
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class NumberReader : public ValueReader<T>
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{
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public:
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NumberReader(T &value, bool bigEndian) :
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ValueReader<T>(value), bigEndian(bigEndian)
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{
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}
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protected:
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bool bigEndian;
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};
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class U16Reader : public NumberReader<ushort>
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{
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public:
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U16Reader(ushort &value, bool bigEndian)
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: NumberReader<ushort>(value, bigEndian) {}
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uint read(TagLib::File &file, uint limit)
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{
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ByteVector data = file.readBlock(std::min(2U,limit));
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if(bigEndian)
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value = data.toUInt16BE(0);
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else
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value = data.toUInt16LE(0);
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return static_cast<uint>(data.size());
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}
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uint size() const
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{
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return 2;
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}
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};
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class U32Reader : public NumberReader<uint>
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{
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public:
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U32Reader(uint &value, bool bigEndian = true) :
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NumberReader<uint>(value, bigEndian)
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{
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}
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uint read(TagLib::File &file, uint limit)
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{
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ByteVector data = file.readBlock(std::min(4U,limit));
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if(bigEndian)
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value = data.toUInt32BE(0);
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else
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value = data.toUInt32LE(0);
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return static_cast<uint>(data.size());
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}
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uint size() const
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{
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return 4;
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}
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};
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class StructReader : public Reader
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{
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public:
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StructReader()
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{
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m_readers.setAutoDelete(true);
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}
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/*!
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* Add a nested reader. This reader takes ownership.
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*/
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StructReader &reader(Reader *reader)
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{
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m_readers.append(reader);
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return *this;
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}
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/*!
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* Don't read anything but skip \a size bytes.
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*/
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StructReader &skip(uint size)
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{
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m_readers.append(new SkipReader(size));
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return *this;
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}
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/*!
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* Read a string of \a size characters (bytes) into \a string.
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*/
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StructReader &string(String &string, uint size)
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{
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m_readers.append(new StringReader(string, size));
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return *this;
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}
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/*!
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* Read a byte into \a byte.
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*/
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StructReader &byte(uchar &byte)
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{
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m_readers.append(new ByteReader(byte));
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return *this;
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}
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/*!
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* Read a unsigned 16 Bit integer into \a number. The byte order
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* is controlled by \a bigEndian.
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*/
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StructReader &u16(ushort &number, bool bigEndian)
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{
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m_readers.append(new U16Reader(number, bigEndian));
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return *this;
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}
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/*!
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* Read a unsigned 16 Bit little endian integer into \a number.
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*/
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StructReader &u16L(ushort &number)
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{
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return u16(number, false);
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}
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/*!
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* Read a unsigned 16 Bit big endian integer into \a number.
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*/
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StructReader &u16B(ushort &number)
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{
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return u16(number, true);
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}
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/*!
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* Read a unsigned 32 Bit integer into \a number. The byte order
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* is controlled by \a bigEndian.
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*/
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StructReader &u32(uint &number, bool bigEndian)
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{
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m_readers.append(new U32Reader(number, bigEndian));
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return *this;
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}
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/*!
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* Read a unsigned 32 Bit little endian integer into \a number.
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*/
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StructReader &u32L(uint &number)
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{
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return u32(number, false);
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}
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/*!
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* Read a unsigned 32 Bit big endian integer into \a number.
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*/
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StructReader &u32B(uint &number)
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{
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return u32(number, true);
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}
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uint size() const
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{
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uint size = 0;
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for(List<Reader*>::ConstIterator i = m_readers.begin();
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i != m_readers.end(); ++ i) {
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size += (*i)->size();
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}
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return size;
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}
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uint read(TagLib::File &file, uint limit)
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{
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uint sumcount = 0;
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for(List<Reader*>::Iterator i = m_readers.begin();
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limit > 0 && i != m_readers.end(); ++ i) {
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uint count = (*i)->read(file, limit);
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limit -= count;
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sumcount += count;
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}
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return sumcount;
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}
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private:
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List<Reader*> m_readers;
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};
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}
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class XM::File::FilePrivate
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||||
{
|
||||
|
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Reference in New Issue
Block a user