Sha256: 8e057b235fbe52573a73c69df5c62eb6f8570f3484282de8f8c926b436662d21
Contents?: true
Size: 1.31 KB
Versions: 12
Compression:
Stored size: 1.31 KB
Contents
class PSD
class Header
attr_reader :sig, :version, :channels, :rows, :cols, :depth, :mode
# All of the color modes are stored internally as a short from 0-15.
# This is a mapping of that value to a human-readable name.
MODES = [
'Bitmap',
'GrayScale',
'IndexedColor',
'RGBColor',
'CMYKColor',
'HSLColor',
'HSBColor',
'Multichannel',
'Duotone',
'LabColor',
'Gray16',
'RGB48',
'Lab48',
'CMYK64',
'DeepMultichannel',
'Duotone16'
].freeze
alias_method :width, :cols
alias_method :height, :rows
def initialize(file)
@file = file
@sig = nil
@version = nil
@channels = nil
@rows = nil
@cols = nil
@depth = nil
@mode = nil
end
def parse!
@sig = @file.read_string(4)
@version = @file.read_ushort
# Reserved bytes, must be 0
@file.seek 6, IO::SEEK_CUR
@channels = @file.read_ushort
@rows = @file.read_uint
@cols = @file.read_uint
@depth = @file.read_ushort
@mode = @file.read_ushort
color_data_len = @file.read_uint
@file.seek color_data_len, IO::SEEK_CUR
end
def mode_name
MODES[@mode]
end
def rgb?
mode == 3
end
def cmyk?
mode == 4
end
end
end
Version data entries
12 entries across 12 versions & 1 rubygems