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@ -90,7 +90,7 @@ class QrCode(object):
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@staticmethod
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@staticmethod
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def encode_segments(segs, ecl, minversion=1, maxversion=40, mask=-1, boostecl=True):
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def encode_segments(segs, ecl, minversion=1, maxversion=40, mask=-1, boostecl=True):
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"""Returns a QR Code symbol representing the given data segments with the given encoding parameters.
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"""Returns a QR Code symbol representing the given segments with the given encoding parameters.
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The smallest possible QR Code version within the given range is automatically chosen for the output.
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The smallest possible QR Code version within the given range is automatically chosen for the output.
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This function allows the user to create a custom sequence of segments that switches
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This function allows the user to create a custom sequence of segments that switches
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between modes (such as alphanumeric and binary) to encode text more efficiently.
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between modes (such as alphanumeric and binary) to encode text more efficiently.
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@ -223,8 +223,8 @@ class QrCode(object):
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# ---- Public instance methods ----
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# ---- Public instance methods ----
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def to_svg_str(self, border):
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def to_svg_str(self, border):
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"""Based on the given number of border modules to add as padding, this returns a
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"""Returns a string of SVG XML code representing an image of this QR Code symbol with the given
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string whose contents represents an SVG XML file that depicts this QR Code symbol."""
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number of border modules. Note that Unix newlines (\n) are always used, regardless of the platform."""
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if border < 0:
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if border < 0:
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raise ValueError("Border must be non-negative")
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raise ValueError("Border must be non-negative")
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parts = []
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parts = []
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@ -403,8 +403,8 @@ class QrCode(object):
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if not self._isfunction[y][x] and i < len(data) * 8:
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if not self._isfunction[y][x] and i < len(data) * 8:
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self._modules[y][x] = _get_bit(data[i >> 3], 7 - (i & 7))
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self._modules[y][x] = _get_bit(data[i >> 3], 7 - (i & 7))
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i += 1
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i += 1
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# If there are any remainder bits (0 to 7), they are already
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# If this QR Code has any remainder bits (0 to 7), they were assigned as
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# set to 0/false/white when the grid of modules was initialized
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# 0/false/white by the constructor and are left unchanged by this method
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assert i == len(data) * 8
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assert i == len(data) * 8
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@ -583,9 +583,8 @@ class QrCode(object):
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# ---- Data segment class ----
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# ---- Data segment class ----
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class QrSegment(object):
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class QrSegment(object):
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"""Represents a character string to be encoded in a QR Code symbol. Each segment has
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"""Represents a segment of character data, binary data, or control data
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a mode, and a sequence of characters that is already encoded as a sequence of bits.
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to be put into a QR Code symbol. Instances of this class are immutable.
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Instances of this class are immutable.
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This segment class imposes no length restrictions, but QR Codes have restrictions.
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This segment class imposes no length restrictions, but QR Codes have restrictions.
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Even in the most favorable conditions, a QR Code can only hold 7089 characters of data.
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Even in the most favorable conditions, a QR Code can only hold 7089 characters of data.
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Any segment longer than this is meaningless for the purpose of generating QR Codes."""
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Any segment longer than this is meaningless for the purpose of generating QR Codes."""
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@ -676,6 +675,7 @@ class QrSegment(object):
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# ---- Constructor ----
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# ---- Constructor ----
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def __init__(self, mode, numch, bitdata):
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def __init__(self, mode, numch, bitdata):
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"""Creates a new QR Code segment with the given parameters and data."""
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if numch < 0 or not isinstance(mode, QrSegment.Mode):
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if numch < 0 or not isinstance(mode, QrSegment.Mode):
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raise ValueError()
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raise ValueError()
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self._mode = mode
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self._mode = mode
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@ -729,8 +729,8 @@ class QrSegment(object):
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# Private constructor
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# Private constructor
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def __init__(self, modebits, charcounts):
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def __init__(self, modebits, charcounts):
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self._modebits = modebits
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self._modebits = modebits # The mode indicator bits, which is a uint4 value (range 0 to 15)
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self._charcounts = charcounts
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self._charcounts = charcounts # Three values for different version ranges
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# Package-private method
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# Package-private method
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def get_mode_bits(self):
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def get_mode_bits(self):
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Project Nayuki
6 years ago