S_V_G_.py revision ddcca79308b52dc36b24ef94cab4ab00c8e32376
1ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod__doc__=""" 2ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad EsfahbodCompiles/decompiles version 0 and 1 SVG tables from/to XML. 3ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 4ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad EsfahbodVersion 1 is the first SVG definition, implemented in Mozilla before Aug 2013, now deprecated. 5ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad EsfahbodThis module will decompile this correctly, but will compile a version 1 table 6ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbodonly if you add the secret element "<version1/>" to the SVG element in the TTF file. 7ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 8ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad EsfahbodVersion 0 is the joint Adobe-Mozilla proposal, which supports color palettes. 9ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 10ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad EsfahbodThe XML format is: 11ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod <SVG> 12ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod <svgDoc endGlyphID="1" startGlyphID="1"> 13ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod <![CDATA[ <complete SVG doc> ]] 14ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod </svgDoc> 15ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod... 16ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod <svgDoc endGlyphID="n" startGlyphID="m"> 17ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod <![CDATA[ <complete SVG doc> ]] 18ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod </svgDoc> 19ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 20ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod <colorPalettes> 21ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod <colorParamUINameID>n</colorParamUINameID> 22ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod ... 23ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod <colorParamUINameID>m</colorParamUINameID> 24ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod <colorPalette uiNameID="n"> 25ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod <colorRecord red="<int>" green="<int>" blue="<int>" alpha="<int>" /> 26ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod ... 27ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod <colorRecord red="<int>" green="<int>" blue="<int>" alpha="<int>" /> 28ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod </colorPalette> 29ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod ... 30ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod <colorPalette uiNameID="m"> 31ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod <colorRecord red="<int> green="<int>" blue="<int>" alpha="<int>" /> 32ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod ... 33ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod <colorRecord red=<int>" green="<int>" blue="<int>" alpha="<int>" /> 34ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod </colorPalette> 35ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod </colorPalettes> 36ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod</SVG> 37ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 38ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad EsfahbodColor values must be less than 256. 39ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 40ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad EsfahbodThe number of color records in each </colorPalette> must be the same as 41ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbodthe number of <colorParamUINameID> elements. 42ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 43ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod""" 44ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 45ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbodimport DefaultTable 46ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbodimport struct, sstruct 47ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbodfrom fontTools.misc.textTools import safeEval 48ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbodtry: 49ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod import xml.etree.cElementTree as ET 50ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbodexcept ImportError: 51ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod import xml.etree.ElementTree as ET 52ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbodimport string 53ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbodimport types 54ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbodimport re 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: 107ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad 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 114ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod pos = self.offsetToSVGDocIndex 115ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.numEntries = numEntries = struct.unpack(">H", data[pos:pos+2])[0] 116ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.decompileEntryList(data, pos+2) 117ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 118ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod # read in colorPalettes table. 119ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.colorPalettes = colorPalettes = ColorPalettes() 120ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod pos = self.offsetToColorPalettes 121ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if pos > 0: 122ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorPalettes.numColorParams = numColorParams = struct.unpack(">H", data[pos:pos+2])[0] 123ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if numColorParams > 0: 124ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorPalettes.colorParamUINameIDs = colorParamUINameIDs = [] 125ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod pos = pos + 2 126ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod i = 0 127ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod while i < numColorParams: 128ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod nameID = struct.unpack(">H", data[pos:pos+2])[0] 129ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorParamUINameIDs.append(nameID) 130ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod pos = pos + 2 131ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod i += 1 132ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 133ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorPalettes.numColorPalettes = numColorPalettes = struct.unpack(">H", data[pos:pos+2])[0] 134ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod pos = pos + 2 135ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if numColorPalettes > 0: 136ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorPalettes.colorPaletteList = colorPaletteList = [] 137ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod i = 0 138ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod while i < numColorPalettes: 139ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorPalette = ColorPalette() 140ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorPaletteList.append(colorPalette) 141ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorPalette.uiNameID = struct.unpack(">H", data[pos:pos+2])[0] 142ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod pos = pos + 2 143ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorPalette.paletteColors = paletteColors = [] 144ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod j = 0 145ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod while j < numColorParams: 146ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorRecord, colorPaletteData = sstruct.unpack2(colorRecord_format_0, data[pos:], ColorRecord()) 147ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod paletteColors.append(colorRecord) 148ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod j += 1 149ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod pos += 4 150ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod i += 1 151ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 152ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod def decompile_format_1(self, data, ttFont): 153ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod pos = 2 154ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.numEntries = struct.unpack(">H", data[pos:pos+2])[0] 155ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod pos += 2 156ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.decompileEntryList(data, pos) 157ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 158ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod def decompileEntryList(self, data, pos): 159ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod # data starts with the first entry of the entry list. 160ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if self.numEntries > 0: 161ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod data2 = data[pos:] 162ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.docList = [] 163ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.entries = entries = [] 164ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod i = 0 165ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod while i < self.numEntries: 166ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod docIndexEntry, data2 = sstruct.unpack2(doc_index_entry_format_0, data2, DocumentIndexEntry()) 167ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod entries.append(docIndexEntry) 168ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod i += 1 169ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 170ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod for entry in entries: 171ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod start = entry.svgDocOffset 172ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod end = start + entry.svgDocLength 173ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod doc = data[start:end] 174ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.docList.append( [doc, entry.startGlyphID, entry.endGlyphID] ) 175ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 176ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod def compile(self, ttFont): 177ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if hasattr(self, "version1"): 178ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod data = self.compileFormat1(ttFont) 179ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod else: 180ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod data = self.compileFormat0(ttFont) 181ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod return data 182ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 183ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod def compileFormat0(self, ttFont): 184ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod version = 0 185ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod offsetToSVGDocIndex = SVG_format_0Size # I start the SVGDocIndex right after the header. 186ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 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) 193ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod curOffset = offsetToSVGDocIndex + 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 198ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod entry = struct.pack(">HHLL", startGlyphID, endGlyphID, docOffset, docLength) 199ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod entryList.append(entry) 200ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod docList.append(doc) 201ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod entryList.extend(docList) 202ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod svgDocData = "".join(entryList) 203ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 204ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod # get colorpalette info. 205ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if self.colorPalettes == 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) 226ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod palettesData = "".join(dataList) 227ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 228ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod header = struct.pack(">HLL", version, offsetToSVGDocIndex, offsetToColorPalettes) 229ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod data = [header, svgDocData, palettesData] 230ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod data = "".join(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 244ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod entry = struct.pack(">HHLL", startGlyphID, endGlyphID, docOffset, docLength) 245ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod dataList.append(entry) 246ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod docList.append(doc) 247ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod dataList.extend(docList) 248ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod data = "".join(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() 256ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.writeraw("<![CDATA["+ doc + "]]>") 257ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.newline() 258ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.endtag("svgDoc") 259ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.newline() 260ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 261ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if self.colorPalettes.numColorParams != None: 262ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.begintag("colorPalettes") 263ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.newline() 264ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod for uiNameID in self.colorPalettes.colorParamUINameIDs: 265ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.begintag("colorParamUINameID") 266ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad 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 292ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad 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 = [] 297ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod doc = "".join(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() 304ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.colorPalettes.fromXML((name, attrs, content), ttFont) 305ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if self.colorPalettes.numColorParams == 0: 306ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.colorPalettes = None 307ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod else: 308ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod print "Unknown", name, content 309ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 310ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbodclass DocumentIndexEntry: 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 320ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbodclass ColorPalettes: 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 327ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod def fromXML(self, (name, attrs, content), ttFont): 328ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod for element in content: 329ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if type(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 346ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbodclass ColorPalette: 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 351ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod def fromXML(self, (name, attrs, content), ttFont): 352ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.uiNameID = int(attrs["uiNameID"]) 353ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod for element in content: 354ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if type(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 365ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbodclass ColorRecord: 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