Sha256: 466be95e4f5bea7fb12cdfc77f42160667c10a778a7d25f706a4ac4be54c7a8e
Contents?: true
Size: 1.9 KB
Versions: 12
Compression:
Stored size: 1.9 KB
Contents
class PSD
class LayerStyles
class ColorOverlay
# TODO: CMYK support
def self.should_apply?(canvas, data)
data.has_key?('SoFi') &&
data['SoFi']['enab'] &&
canvas.node.header.rgb?
end
def self.can_apply?(canvas, data)
data.has_key?('SoFi') &&
data['SoFi']['enab'] &&
canvas.node.header.rgb?
end
def self.for_canvas(canvas)
data = canvas.node.object_effects
return nil if data.nil?
return nil unless can_apply?(canvas, data.data)
styles = LayerStyles.new(canvas)
self.new(styles)
end
def initialize(styles)
@canvas = styles.canvas
@node = styles.node
@data = styles.data
end
def apply!
PSD.logger.debug "Layer style: layer = #{@node.name}, type = color overlay, blend mode = #{blending_mode}"
@canvas.height.times do |y|
@canvas.width.times do |x|
pixel = @canvas[x, y]
alpha = ChunkyPNG::Color.a(pixel)
next if alpha == 0
new_pixel = Compose.send(blending_mode, overlay_color, pixel, overlay_opacity)
@canvas[x, y] = (new_pixel & 0xFFFFFF00) | alpha
end
end
end
def overlay_color
@overlay_color ||= ChunkyPNG::Color.rgb(r, g, b)
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
def a
@a ||= (overlay_data['Opct'][:value] * 2.55).ceil
end
alias_method :overlay_opacity, :a
private
def blending_mode
@blending_mode ||= BlendMode::BLEND_MODES[BLEND_TRANSLATION[overlay_data['Md '][:value]].to_sym]
end
def overlay_data
@data['SoFi']
end
def color_data
overlay_data['Clr ']
end
end
end
end
Version data entries
12 entries across 12 versions & 1 rubygems