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typetool.coffee 

class PSDTypeTool
  constructor: (@layer, @length) ->
    @file = @layer.file
    @data = {}

  parse: (legacy = false) ->
    version = @file.readShortInt()
    assert version is 1

6 * 8 double numbers for transform info xx, xy, yx, yy, tx, ty

 
    @data.transformInfo = {}
    [
      @data.transformInfo.xx
      @data.transformInfo.xy
      @data.transformInfo.yx
      @data.transformInfo.yy
      @data.transformInfo.tx
      @data.transformInfo.ty
    ] = @file.readf(">6d")

    return @parseLegacy() if legacy

Below is code for PS >= 6

 
    textVersion = @file.readShortInt()
    assert textVersion is 50

    descriptorVersion = @file.readInt()
    assert descriptorVersion is 16

Read descriptor (NOTE: not sure if correct...)

 
    @data.text = (new PSDDescriptor(@file)).parse()

This isn't documented, but it seems like the raw EngineData can be parsed as character codes. It's not perfect, but you can get a general idea. Hopefully this can be improved in the future.

 
    engineData = ""
    for char in @data.text.EngineData
      engineData += String.fromCharCode(char)

    @data.text.EngineData = engineData.replace /\u0000/g, ""

This is a bit verbose Log.debug "Text:", @data.text

 
    warpVersion = @file.readShortInt()
    assert warpVersion is 1

    descriptorVersion = @file.readInt()
    assert descriptorVersion is 16

    @data.warp = (new PSDDescriptor(@file)).parse()

Log.debug "Warp:", @data.warp

 
    [
      @data.left
      @data.top
      @data.right
      @data.bottom
    ] = @file.readf ">4d"

    @data

  parseLegacy: ->

Font Information

 
    version = @file.readShortInt()
    assert version is 6

Count of faces

 
    @data.facesCount = @file.readShortInt()
    @data.face = []

    for i in [0...@data.facesCount]
      @data.face[i] = {}
      @data.face[i].mark = @file.readShortInt()
      @data.face[i].fontType = @file.readInt()
      @data.face[i].fontName = @file.readLengthWithString()
      @data.face[i].fontFamilyName = @file.readLengthWithString()
      @data.face[i].fontStyleName = @file.readLengthWithString()
      @data.face[i].script = @file.readShortInt()

      @data.face[i].numberAxesVector = @file.readInt()
      @data.face[i].vector = []

      for j in [0...@data.face[i].numberAxesVector]
        @data.face[i].vector[j] = @file.readInt()

Style Information

 
    @data.stylesCount = @file.readShortInt()
    @data.style = []

    for i in [0...@data.stylesCount]
      @data.style[i] = {}
      @data.style[i].mark = @file.readShortInt()
      @data.style[i].faceMark = @file.readShortInt()
      @data.style[i].size = @file.readInt()
      @data.style[i].tracking = @file.readInt()
      @data.style[i].kerning = @file.readInt()
      @data.style[i].leading = @file.readInt()
      @data.style[i].baseShift = @file.readInt()
      @data.style[i].autoKern = @file.readBoolean()

Only present in version <= 5

 
      @file.read 1

      @data.style[i].rotate = @file.readBoolean()

Text Information

 
    @data.type = @file.readShortInt()
    @data.scalingFactor = @file.readInt()
    @data.sharacterCount = @file.readInt()
    @data.horzPlace = @file.readInt()
    @data.vertPlace = @file.readInt()
    @data.selectStart = @file.readInt()
    @data.selectEnd = @file.readInt()
    
    @data.linesCount = @file.readShortInt()
    @data.line = []
    for i in [0...@data.linesCount]
      @data.line[i].charCount = @file.readInt()
      @data.line[i].orientation = @file.readShortInt()
      @data.line[i].alignment = @file.readShortInt()
      @data.line[i].actualChar = @file.readShortInt()
      @data.line[i].style = @file.readShortInt()

Color Information

 
    @data.color = @file.readSpaceColor()
    @data.antialias = @file.readBoolean()

    @data