Add enginedata parsing and ability to get fonts

examples/node/fonts.js

+var _ = require('lodash');
+var PSD = require('../../');
+var file = process.argv[2] || './examples/images/example.psd';
+
+PSD.open(file).then(function (psd) {
+  var type, fonts = [];
+  psd.tree().descendants().forEach(function (node) {
+    type = node.get('typeTool');
+    if (!type) return;
+    fonts = fonts.concat(type.fonts());
+  });
+
+  console.log(_.uniq(fonts));
+});

lib/psd/layer_info/typetool.coffee

+parseEngineData = require 'parse-engine-data'
 LayerInfo = require '../layer_info.coffee'
 Descriptor = require '../descriptor.coffee'
 
@@ -15,6 +16,7 @@ module.exports = class TextElements extends LayerInfo
     @textVersion = null
     @descriptorVersion = null
     @textData = null
+    @engineData = null
     @textValue = null
     @warpVersion = null
     @descriptorVersion = null
@@ -32,6 +34,7 @@ module.exports = class TextElements extends LayerInfo
 
     @textData = new Descriptor(@file).parse()
     @textValue = @textData['Txt ']
+    @engineData = parseEngineData(@textData.EngineData)
 
     @warpVersion = @file.readShort()
 
@@ -41,3 +44,7 @@ module.exports = class TextElements extends LayerInfo
 
     for name, index in COORDS_VALUE
       @coords[name] = @file.readDouble()
+
+  fonts: ->
+    return [] unless @engineData?
+    @engineData.ResourceDict.FontSet.map (f) -> f.Name

package.json

@@ -12,6 +12,7 @@
     "coffee-script": "~ 1.7.1",
     "jspack": "~ 0.0.3",
     "coffeescript-module": "~ 0.2.1",
+    "parse-engine-data": "~ 0.1",
     "pngjs": "~ 0.4.0",
     "rsvp": "~ 3.0.6",
     "lodash": "~ 2.4",