Sha256: 490dc088cbe3476c6c3803b419e6a950cc9932ed1d73a292329ea385c0bf7d73
Contents?: true
Size: 870 Bytes
Versions: 22
Compression:
Stored size: 870 Bytes
Contents
module ZPNG
class Block
attr_accessor :width, :height, :pixels
def initialize image, x, y, w, h
@width, @height = w,h
@pixels = []
h.times do |i|
w.times do |j|
@pixels << image[x+j,y+i]
end
end
end
def to_s
a = []
height.times do |i|
b = []
width.times do |j|
b << pixels[i*width+j].to_s
end
a << b.join(" ")
end
a.join "\n"
end
def to_binary_string c_white = ' ', c_black = 'X'
@pixels.each do |p|
raise "pixel #{p.inspect} is not white nor black" if !p.white? && !p.black?
end
a = []
height.times do |i|
b = []
width.times do |j|
b << (pixels[i*width+j].black? ? c_black : c_white)
end
a << b.join(" ")
end
a.join "\n"
end
end
end
Version data entries
22 entries across 22 versions & 1 rubygems