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# mask.coffee

lib/psd/

¶

    module.exports = class Mask
      constructor: (@file) ->
        @top = 0
        @right = 0
        @bottom = 0
        @left = 0

      parse: ->
        @size = @file.readInt()
        return @ if @size is 0

        maskEnd = @file.tell() + @size

        @top = @file.readInt()
        @left = @file.readInt()
        @bottom = @file.readInt()
        @right = @file.readInt()

        @width = @right - @left
        @height = @bottom - @top

        @relative = (@flags & 0x01) > 0
        @disabled = (@flags & (0x01 << 1)) > 0
        @invert = (@flags & (0x01 << 2)) > 0

        @defaultColor = @file.readByte()
        @flags = @file.readByte()

        @file.seek maskEnd
        return @

      export: ->
        return {} if @size is 0

        top: @top
        left: @left
        bottom: @bottom
        right: @right
        width: @width
        height: @height
        defaultColor: @defaultColor
        relative: @relative
        disabled: @disabled
        invert: @invert

generated Tue May 12 2015 10:08:58 GMT-0400 (EDT)