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# path_record.coffee

lib/psd/

¶

    _ = require 'lodash'

    module.exports = class PathRecord
      constructor: (@file) ->
        @recordType = null

      parse: ->
        @recordType = @file.readShort()

        switch @recordType
          when 0, 3 then @_readPathRecord()
          when 1, 2, 4, 5 then @_readBezierPoint()
          when 7 then @_readClipboardRecord()
          when 8 then @_readInitialFill()
          else @file.seek(24, true)

      export: ->
        _.merge { recordType: @recordType }, switch @recordType
          when 0, 3 then { numPoints: @numPoints }
          when 1, 2, 4, 5
            linked: @linked
            closed: (@recordType in [1, 2])
            preceding:
              vert: @precedingVert
              horiz: @precedingHoriz
            anchor:
              vert: @anchorVert
              horiz: @anchorHoriz
            leaving:
              vert: @leavingVert
              horiz: @leavingHoriz
          when 7
            clipboard:
              top: @clipboardTop
              left: @clipboardLeft
              bottom: @clipboardBottom
              right: @clipboardRight
              resolution: @clipboardResolution
          when 8 then { initialFill: @initialFill }
          else {}

      isBezierPoint: -> @recordType in [1, 2, 4, 5]

      _readPathRecord: ->
        @numPoints = @file.readShort()
        @file.seek 22, true

      _readBezierPoint: ->
        @linked = @recordType in [1, 4]

        @precedingVert = @file.readPathNumber()
        @precedingHoriz = @file.readPathNumber()

        @anchorVert = @file.readPathNumber()
        @anchorHoriz = @file.readPathNumber()

        @leavingVert = @file.readPathNumber()
        @leavingHoriz = @file.readPathNumber()

      _readClipboardRecord: ->
        @clipboardTop = @file.readPathNumber()
        @clipboardLeft = @file.readPathNumber()
        @clipboardBottom = @file.readPathNumber()
        @clipboardRight = @file.readPathNumber()
        @clipboardResolution = @file.readPathNumber()
        @file.seek 4, true

      _readInitialFill: ->
        @initialFill = @file.readShort()
        @file.seek 22, true

generated Tue May 12 2015 10:08:59 GMT-0400 (EDT)