11ae29591efbb29492ce05378909ccf4028d7c1eeBehdad Esfahbodfrom __future__ import print_function, division, absolute_import 2af1c9968b2edc827ee9115355a72b3c56c4fbe61Denis Jacqueryefrom fontTools.misc.py23 import * 3af1c9968b2edc827ee9115355a72b3c56c4fbe61Denis Jacqueryefrom fontTools.misc import sstruct 4af1c9968b2edc827ee9115355a72b3c56c4fbe61Denis Jacqueryefrom . import DefaultTable 5af1c9968b2edc827ee9115355a72b3c56c4fbe61Denis Jacqueryetry: 6af1c9968b2edc827ee9115355a72b3c56c4fbe61Denis Jacquerye import xml.etree.cElementTree as ET 7af1c9968b2edc827ee9115355a72b3c56c4fbe61Denis Jacqueryeexcept ImportError: 8af1c9968b2edc827ee9115355a72b3c56c4fbe61Denis Jacquerye import xml.etree.ElementTree as ET 9af1c9968b2edc827ee9115355a72b3c56c4fbe61Denis Jacqueryeimport struct 10af1c9968b2edc827ee9115355a72b3c56c4fbe61Denis Jacqueryeimport re 11af1c9968b2edc827ee9115355a72b3c56c4fbe61Denis Jacquerye 12ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod__doc__=""" 13ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad EsfahbodCompiles/decompiles version 0 and 1 SVG tables from/to XML. 14ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 15ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad EsfahbodVersion 1 is the first SVG definition, implemented in Mozilla before Aug 2013, now deprecated. 16ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad EsfahbodThis module will decompile this correctly, but will compile a version 1 table 17ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbodonly if you add the secret element "<version1/>" to the SVG element in the TTF file. 18ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 19ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad EsfahbodVersion 0 is the joint Adobe-Mozilla proposal, which supports color palettes. 20ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 21ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad EsfahbodThe XML format is: 22ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod <SVG> 23ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod <svgDoc endGlyphID="1" startGlyphID="1"> 24ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod <![CDATA[ <complete SVG doc> ]] 25ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod </svgDoc> 26ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod... 27ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod <svgDoc endGlyphID="n" startGlyphID="m"> 28ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod <![CDATA[ <complete SVG doc> ]] 29ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod </svgDoc> 30ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 31ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod <colorPalettes> 32ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod <colorParamUINameID>n</colorParamUINameID> 33ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod ... 34ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod <colorParamUINameID>m</colorParamUINameID> 35ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod <colorPalette uiNameID="n"> 36ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod <colorRecord red="<int>" green="<int>" blue="<int>" alpha="<int>" /> 37ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod ... 38ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod <colorRecord red="<int>" green="<int>" blue="<int>" alpha="<int>" /> 39ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod </colorPalette> 40ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod ... 41ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod <colorPalette uiNameID="m"> 42ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod <colorRecord red="<int> green="<int>" blue="<int>" alpha="<int>" /> 43ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod ... 44ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod <colorRecord red=<int>" green="<int>" blue="<int>" alpha="<int>" /> 45ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod </colorPalette> 46ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod </colorPalettes> 47ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod</SVG> 48ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 49ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad EsfahbodColor values must be less than 256. 50ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 51ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad EsfahbodThe number of color records in each </colorPalette> must be the same as 52ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbodthe number of <colorParamUINameID> elements. 53ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 54ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod""" 55ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 56ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad EsfahbodXML = ET.XML 57ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad EsfahbodXMLElement = ET.Element 58ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad EsfahbodxmlToString = ET.tostring 59ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 60ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad EsfahbodSVG_format_0 = """ 61ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod > # big endian 62ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod version: H 63ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod offsetToSVGDocIndex: L 64ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod offsetToColorPalettes: L 65ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod""" 66ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 67ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad EsfahbodSVG_format_0Size = sstruct.calcsize(SVG_format_0) 68ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 69ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad EsfahbodSVG_format_1 = """ 70ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod > # big endian 71ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod version: H 72ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod numIndicies: H 73ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod""" 74ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 75ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad EsfahbodSVG_format_1Size = sstruct.calcsize(SVG_format_1) 76ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 77ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahboddoc_index_entry_format_0 = """ 78ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod > # big endian 79ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod startGlyphID: H 80ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod endGlyphID: H 81ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod svgDocOffset: L 82ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod svgDocLength: L 83ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod""" 84ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 85ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahboddoc_index_entry_format_0Size = sstruct.calcsize(doc_index_entry_format_0) 86ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 87ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad EsfahbodcolorRecord_format_0 = """ 88ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod red: B 89ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod green: B 90ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod blue: B 91ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod alpha: B 92ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod""" 93ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 94ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 95ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbodclass table_S_V_G_(DefaultTable.DefaultTable): 96ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 97ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod def decompile(self, data, ttFont): 98ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.docList = None 99ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.colorPalettes = None 100ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod pos = 0 101ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.version = struct.unpack(">H", data[pos:pos+2])[0] 102ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 103ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if self.version == 1: 104ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.decompile_format_1(data, ttFont) 105ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod else: 106ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if self.version != 0: 1073ec6a258238b6068e4eef3fe579f1f5c0a06bbbaBehdad Esfahbod print("Unknown SVG table version '%s'. Decompiling as version 0." % (self.version)) 108ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.decompile_format_0(data, ttFont) 109ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 110ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 111ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod def decompile_format_0(self, data, ttFont): 112ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod dummy, data2 = sstruct.unpack2(SVG_format_0, data, self) 113ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod # read in SVG Documents Index 1141e4c89f83aa3fb63c0973f59de2d91a07683de75Behdad Esfahbod self.decompileEntryList(data) 115ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 116ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod # read in colorPalettes table. 117ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.colorPalettes = colorPalettes = ColorPalettes() 118ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod pos = self.offsetToColorPalettes 119ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if pos > 0: 120ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorPalettes.numColorParams = numColorParams = struct.unpack(">H", data[pos:pos+2])[0] 121ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if numColorParams > 0: 122ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorPalettes.colorParamUINameIDs = colorParamUINameIDs = [] 123ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod pos = pos + 2 124ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod i = 0 125ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod while i < numColorParams: 126ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod nameID = struct.unpack(">H", data[pos:pos+2])[0] 127ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorParamUINameIDs.append(nameID) 128ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod pos = pos + 2 129ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod i += 1 130ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 131ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorPalettes.numColorPalettes = numColorPalettes = struct.unpack(">H", data[pos:pos+2])[0] 132ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod pos = pos + 2 133ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if numColorPalettes > 0: 134ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorPalettes.colorPaletteList = colorPaletteList = [] 135ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod i = 0 136ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod while i < numColorPalettes: 137ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorPalette = ColorPalette() 138ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorPaletteList.append(colorPalette) 139ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorPalette.uiNameID = struct.unpack(">H", data[pos:pos+2])[0] 140ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod pos = pos + 2 141ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorPalette.paletteColors = paletteColors = [] 142ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod j = 0 143ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod while j < numColorParams: 144ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorRecord, colorPaletteData = sstruct.unpack2(colorRecord_format_0, data[pos:], ColorRecord()) 145ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod paletteColors.append(colorRecord) 146ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod j += 1 147ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod pos += 4 148ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod i += 1 149ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 150ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod def decompile_format_1(self, data, ttFont): 151ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod pos = 2 152ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.numEntries = struct.unpack(">H", data[pos:pos+2])[0] 153ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod pos += 2 154ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.decompileEntryList(data, pos) 155ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 1561e4c89f83aa3fb63c0973f59de2d91a07683de75Behdad Esfahbod def decompileEntryList(self, data): 157ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod # data starts with the first entry of the entry list. 1581e4c89f83aa3fb63c0973f59de2d91a07683de75Behdad Esfahbod pos = subTableStart = self.offsetToSVGDocIndex 1591e4c89f83aa3fb63c0973f59de2d91a07683de75Behdad Esfahbod self.numEntries = numEntries = struct.unpack(">H", data[pos:pos+2])[0] 1601e4c89f83aa3fb63c0973f59de2d91a07683de75Behdad Esfahbod pos += 2 161ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if self.numEntries > 0: 162ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod data2 = data[pos:] 163ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.docList = [] 164ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.entries = entries = [] 165ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod i = 0 166ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod while i < self.numEntries: 167ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod docIndexEntry, data2 = sstruct.unpack2(doc_index_entry_format_0, data2, DocumentIndexEntry()) 168ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod entries.append(docIndexEntry) 169ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod i += 1 170ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 171ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod for entry in entries: 1721e4c89f83aa3fb63c0973f59de2d91a07683de75Behdad Esfahbod start = entry.svgDocOffset + subTableStart 173ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod end = start + entry.svgDocLength 17418316aa769566eeb6f3f4a6ed2685fa8f8e861c2Behdad Esfahbod doc = tostr(data[start:end], "utf-8") 175ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.docList.append( [doc, entry.startGlyphID, entry.endGlyphID] ) 176ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 177ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod def compile(self, ttFont): 178ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if hasattr(self, "version1"): 179ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod data = self.compileFormat1(ttFont) 180ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod else: 181ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod data = self.compileFormat0(ttFont) 182ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod return data 183ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 184ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod def compileFormat0(self, ttFont): 185ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod version = 0 186ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod offsetToSVGDocIndex = SVG_format_0Size # I start the SVGDocIndex right after the header. 187ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod # get SGVDoc info. 188ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod docList = [] 189ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod entryList = [] 190ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod numEntries = len(self.docList) 191ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod datum = struct.pack(">H",numEntries) 192ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod entryList.append(datum) 1931e4c89f83aa3fb63c0973f59de2d91a07683de75Behdad Esfahbod curOffset = len(datum) + doc_index_entry_format_0Size*numEntries 194ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod for doc, startGlyphID, endGlyphID in self.docList: 195ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod docOffset = curOffset 196ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod docLength = len(doc) 197ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod curOffset += docLength 19818316aa769566eeb6f3f4a6ed2685fa8f8e861c2Behdad Esfahbod entry = struct.pack(">HHLL", startGlyphID, endGlyphID, docOffset, docLength) 19918316aa769566eeb6f3f4a6ed2685fa8f8e861c2Behdad Esfahbod entryList.append(entry) 20018316aa769566eeb6f3f4a6ed2685fa8f8e861c2Behdad Esfahbod docList.append(tobytes(doc, encoding="utf-8")) 201ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod entryList.extend(docList) 20218316aa769566eeb6f3f4a6ed2685fa8f8e861c2Behdad Esfahbod svgDocData = bytesjoin(entryList) 203ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 204ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod # get colorpalette info. 2059e6ef94b5554c5b7dda2de9c863c11ed4b996b7aBehdad Esfahbod if self.colorPalettes is None: 206ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod offsetToColorPalettes = 0 207ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod palettesData = "" 208ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod else: 209ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod offsetToColorPalettes = SVG_format_0Size + len(svgDocData) 210ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod dataList = [] 211ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod numColorParams = len(self.colorPalettes.colorParamUINameIDs) 212ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod datum = struct.pack(">H", numColorParams) 213ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod dataList.append(datum) 214ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod for uiNameId in self.colorPalettes.colorParamUINameIDs: 215ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod datum = struct.pack(">H", uiNameId) 216ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod dataList.append(datum) 217ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod numColorPalettes = len(self.colorPalettes.colorPaletteList) 218ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod datum = struct.pack(">H", numColorPalettes) 219ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod dataList.append(datum) 220ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod for colorPalette in self.colorPalettes.colorPaletteList: 221ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod datum = struct.pack(">H", colorPalette.uiNameID) 222ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod dataList.append(datum) 223ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod for colorRecord in colorPalette.paletteColors: 224ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod data = struct.pack(">BBBB", colorRecord.red, colorRecord.green, colorRecord.blue, colorRecord.alpha) 225ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod dataList.append(data) 22618316aa769566eeb6f3f4a6ed2685fa8f8e861c2Behdad Esfahbod palettesData = bytesjoin(dataList) 227ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 228ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod header = struct.pack(">HLL", version, offsetToSVGDocIndex, offsetToColorPalettes) 229ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod data = [header, svgDocData, palettesData] 23018316aa769566eeb6f3f4a6ed2685fa8f8e861c2Behdad Esfahbod data = bytesjoin(data) 231ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod return data 232ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 233ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod def compileFormat1(self, ttFont): 234ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod version = 1 235ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod numEntries = len(self.docList) 236ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod header = struct.pack(">HH", version, numEntries) 237ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod dataList = [header] 238ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod docList = [] 239ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod curOffset = SVG_format_1Size + doc_index_entry_format_0Size*numEntries 240ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod for doc, startGlyphID, endGlyphID in self.docList: 241ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod docOffset = curOffset 242ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod docLength = len(doc) 243ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod curOffset += docLength 24418316aa769566eeb6f3f4a6ed2685fa8f8e861c2Behdad Esfahbod entry = struct.pack(">HHLL", startGlyphID, endGlyphID, docOffset, docLength) 24518316aa769566eeb6f3f4a6ed2685fa8f8e861c2Behdad Esfahbod dataList.append(entry) 24618316aa769566eeb6f3f4a6ed2685fa8f8e861c2Behdad Esfahbod docList.append(tobytes(doc, encoding="utf-8")) 247ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod dataList.extend(docList) 24818316aa769566eeb6f3f4a6ed2685fa8f8e861c2Behdad Esfahbod data = bytesjoin(dataList) 249ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod return data 250ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 251ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod def toXML(self, writer, ttFont): 252ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.newline() 253ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod for doc, startGID, endGID in self.docList: 254ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.begintag("svgDoc", startGlyphID=startGID, endGlyphID=endGID) 255ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.newline() 256ca80208a1514ea4d7c55114ae1979f0ba6b41d16Behdad Esfahbod writer.writecdata(doc) 257ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.newline() 258ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.endtag("svgDoc") 259ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.newline() 260ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 2619e6ef94b5554c5b7dda2de9c863c11ed4b996b7aBehdad Esfahbod if (self.colorPalettes is not None) and (self.colorPalettes.numColorParams is not None): 262ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.begintag("colorPalettes") 263ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.newline() 264ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod for uiNameID in self.colorPalettes.colorParamUINameIDs: 265ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.begintag("colorParamUINameID") 266ca80208a1514ea4d7c55114ae1979f0ba6b41d16Behdad Esfahbod writer.writeraw(str(uiNameID)) 267ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.endtag("colorParamUINameID") 268ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.newline() 269ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod for colorPalette in self.colorPalettes.colorPaletteList: 270ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.begintag("colorPalette", [("uiNameID", str(colorPalette.uiNameID))]) 271ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.newline() 272ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod for colorRecord in colorPalette.paletteColors: 273ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorAttributes = [ 274ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod ("red", hex(colorRecord.red)), 275ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod ("green", hex(colorRecord.green)), 276ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod ("blue", hex(colorRecord.blue)), 277ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod ("alpha", hex(colorRecord.alpha)), 278ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod ] 279ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.begintag("colorRecord", colorAttributes) 280ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.endtag("colorRecord") 281ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.newline() 282ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.endtag("colorPalette") 283ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.newline() 284ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 285ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.endtag("colorPalettes") 286ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.newline() 287ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod else: 288ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.begintag("colorPalettes") 289ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.endtag("colorPalettes") 290ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.newline() 291ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 2923a9fd301808f5a8991ca9ac44028d1ecb22d307fBehdad Esfahbod def fromXML(self, name, attrs, content, ttFont): 293ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod import re 294ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if name == "svgDoc": 295ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if not hasattr(self, "docList"): 296ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.docList = [] 29718316aa769566eeb6f3f4a6ed2685fa8f8e861c2Behdad Esfahbod doc = strjoin(content) 298ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod doc = doc.strip() 299ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod startGID = int(attrs["startGlyphID"]) 300ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod endGID = int(attrs["endGlyphID"]) 301ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.docList.append( [doc, startGID, endGID] ) 302ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod elif name == "colorPalettes": 303ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.colorPalettes = ColorPalettes() 3043a9fd301808f5a8991ca9ac44028d1ecb22d307fBehdad Esfahbod self.colorPalettes.fromXML(name, attrs, content, ttFont) 305ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if self.colorPalettes.numColorParams == 0: 306ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.colorPalettes = None 307ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod else: 3083ec6a258238b6068e4eef3fe579f1f5c0a06bbbaBehdad Esfahbod print("Unknown", name, content) 309ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 310e388db566b9ba42669c7e353db4293cf27bc2a5bBehdad Esfahbodclass DocumentIndexEntry(object): 311ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod def __init__(self): 312ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.startGlyphID = None # USHORT 313ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.endGlyphID = None # USHORT 314ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.svgDocOffset = None # ULONG 315ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.svgDocLength = None # ULONG 316ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 317ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod def __repr__(self): 318ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod return "startGlyphID: %s, endGlyphID: %s, svgDocOffset: %s, svgDocLength: %s" % (self.startGlyphID, self.endGlyphID, self.svgDocOffset, self.svgDocLength) 319ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 320e388db566b9ba42669c7e353db4293cf27bc2a5bBehdad Esfahbodclass ColorPalettes(object): 321ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod def __init__(self): 322ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.numColorParams = None # USHORT 323ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.colorParamUINameIDs = [] # list of name table name ID values that provide UI description of each color palette. 324ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.numColorPalettes = None # USHORT 325ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.colorPaletteList = [] # list of ColorPalette records 326ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 3273a9fd301808f5a8991ca9ac44028d1ecb22d307fBehdad Esfahbod def fromXML(self, name, attrs, content, ttFont): 328ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod for element in content: 329ac1b4359467ca3deab03186a15eae1d55eb35567Behdad Esfahbod if isinstance(element, type("")): 330ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod continue 331ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod name, attrib, content = element 332ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if name == "colorParamUINameID": 333ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod uiNameID = int(content[0]) 334ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.colorParamUINameIDs.append(uiNameID) 335ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod elif name == "colorPalette": 336ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorPalette = ColorPalette() 337ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.colorPaletteList.append(colorPalette) 338ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorPalette.fromXML((name, attrib, content), ttFont) 339ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 340ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.numColorParams = len(self.colorParamUINameIDs) 341ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.numColorPalettes = len(self.colorPaletteList) 342ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod for colorPalette in self.colorPaletteList: 343ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if len(colorPalette.paletteColors) != self.numColorParams: 344ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod raise ValueError("Number of color records in a colorPalette ('%s') does not match the number of colorParamUINameIDs elements ('%s')." % (len(colorPalette.paletteColors), self.numColorParams)) 345ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 346e388db566b9ba42669c7e353db4293cf27bc2a5bBehdad Esfahbodclass ColorPalette(object): 347ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod def __init__(self): 348ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.uiNameID = None # USHORT. name table ID that describes user interface strings associated with this color palette. 349ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.paletteColors = [] # list of ColorRecords 350ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 3513a9fd301808f5a8991ca9ac44028d1ecb22d307fBehdad Esfahbod def fromXML(self, name, attrs, content, ttFont): 352ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.uiNameID = int(attrs["uiNameID"]) 353ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod for element in content: 354ac1b4359467ca3deab03186a15eae1d55eb35567Behdad Esfahbod if isinstance(element, type("")): 355ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod continue 356ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod name, attrib, content = element 357ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if name == "colorRecord": 358ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorRecord = ColorRecord() 359ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.paletteColors.append(colorRecord) 360ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorRecord.red = eval(attrib["red"]) 361ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorRecord.green = eval(attrib["green"]) 362ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorRecord.blue = eval(attrib["blue"]) 363ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorRecord.alpha = eval(attrib["alpha"]) 364ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 365e388db566b9ba42669c7e353db4293cf27bc2a5bBehdad Esfahbodclass ColorRecord(object): 366ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod def __init__(self): 367ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.red = 255 # all are one byte values. 368ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.green = 255 369ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.blue = 255 370ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.alpha = 255 371