Sha256: 7b38d6a033df24d2afdcf6cb7107b5c47e035e991c69ba694f3431c34daf937b
Contents?: true
Size: 1.41 KB
Versions: 5
Compression:
Stored size: 1.41 KB
Contents
class PSD
class LayerStyles
class ColorOverlay
def self.should_apply?(data)
data.has_key?('SoFi')
end
def initialize(styles)
@canvas = styles.canvas
@node = styles.node
@data = styles.data
end
def apply!
# TODO - implement CMYK color overlay
return if @node.header.cmyk?
width = @canvas.width
height = @canvas.height
# puts width, height
# puts @canvas.canvas.width, @canvas.canvas.height
PSD.logger.debug "Layer style: layer = #{@node.name}, type = color overlay, blend mode = #{blending_mode}"
height.times do |y|
width.times do |x|
pixel = @canvas[x, y]
alpha = ChunkyPNG::Color.a(pixel)
next if alpha == 0
overlay_color = ChunkyPNG::Color.rgba(r, g, b, alpha)
@canvas[x, y] = Compose.send(blending_mode, overlay_color, pixel)
end
end
end
private
def blending_mode
@blending_mode ||= BlendMode::BLEND_MODES[BLEND_TRANSLATION[overlay_data['Md ']].to_sym]
end
def overlay_data
@data['SoFi']
end
def color_data
overlay_data['Clr ']
end
def r
@r ||= color_data['Rd '].round
end
def g
@g ||= color_data['Grn '].round
end
def b
@b ||= color_data['Bl '].round
end
end
end
end
Version data entries
5 entries across 5 versions & 2 rubygems