S_V_G_.py revision 3ec6a258238b6068e4eef3fe579f1f5c0a06bbba
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 452b06aaa2a6bcd363c25fb0c43f6bb906906594bdBehdad Esfahbodfrom . import DefaultTable 468413c108d21e8cf0e9059bbfffde8d13f2616340Behdad Esfahbodimport struct 478413c108d21e8cf0e9059bbfffde8d13f2616340Behdad Esfahbodfrom fontTools.misc import sstruct 48ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbodfrom fontTools.misc.textTools import safeEval 49ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbodtry: 50ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod import xml.etree.cElementTree as ET 51ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbodexcept ImportError: 52ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod import xml.etree.ElementTree as ET 53ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbodimport string 54ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbodimport types 55ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbodimport re 56ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 57ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad EsfahbodXML = ET.XML 58ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad EsfahbodXMLElement = ET.Element 59ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad EsfahbodxmlToString = ET.tostring 60ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 61ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad EsfahbodSVG_format_0 = """ 62ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod > # big endian 63ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod version: H 64ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod offsetToSVGDocIndex: L 65ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod offsetToColorPalettes: L 66ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod""" 67ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 68ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad EsfahbodSVG_format_0Size = sstruct.calcsize(SVG_format_0) 69ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 70ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad EsfahbodSVG_format_1 = """ 71ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod > # big endian 72ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod version: H 73ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod numIndicies: H 74ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod""" 75ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 76ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad EsfahbodSVG_format_1Size = sstruct.calcsize(SVG_format_1) 77ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 78ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahboddoc_index_entry_format_0 = """ 79ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod > # big endian 80ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod startGlyphID: H 81ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod endGlyphID: H 82ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod svgDocOffset: L 83ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod svgDocLength: L 84ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod""" 85ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 86ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahboddoc_index_entry_format_0Size = sstruct.calcsize(doc_index_entry_format_0) 87ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 88ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad EsfahbodcolorRecord_format_0 = """ 89ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod red: B 90ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod green: B 91ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod blue: B 92ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod alpha: B 93ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod""" 94ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 95ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 96ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbodclass table_S_V_G_(DefaultTable.DefaultTable): 97ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 98ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod def decompile(self, data, ttFont): 99ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.docList = None 100ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.colorPalettes = None 101ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod pos = 0 102ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.version = struct.unpack(">H", data[pos:pos+2])[0] 103ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 104ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if self.version == 1: 105ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.decompile_format_1(data, ttFont) 106ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod else: 107ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if self.version != 0: 1083ec6a258238b6068e4eef3fe579f1f5c0a06bbbaBehdad Esfahbod print("Unknown SVG table version '%s'. Decompiling as version 0." % (self.version)) 109ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.decompile_format_0(data, ttFont) 110ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 111ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 112ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod def decompile_format_0(self, data, ttFont): 113ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod dummy, data2 = sstruct.unpack2(SVG_format_0, data, self) 114ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod # read in SVG Documents Index 1151e4c89f83aa3fb63c0973f59de2d91a07683de75Behdad Esfahbod self.decompileEntryList(data) 116ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 117ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod # read in colorPalettes table. 118ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.colorPalettes = colorPalettes = ColorPalettes() 119ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod pos = self.offsetToColorPalettes 120ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if pos > 0: 121ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorPalettes.numColorParams = numColorParams = struct.unpack(">H", data[pos:pos+2])[0] 122ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if numColorParams > 0: 123ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorPalettes.colorParamUINameIDs = colorParamUINameIDs = [] 124ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod pos = pos + 2 125ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod i = 0 126ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod while i < numColorParams: 127ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod nameID = struct.unpack(">H", data[pos:pos+2])[0] 128ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorParamUINameIDs.append(nameID) 129ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod pos = pos + 2 130ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod i += 1 131ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 132ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorPalettes.numColorPalettes = numColorPalettes = struct.unpack(">H", data[pos:pos+2])[0] 133ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod pos = pos + 2 134ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if numColorPalettes > 0: 135ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorPalettes.colorPaletteList = colorPaletteList = [] 136ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod i = 0 137ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod while i < numColorPalettes: 138ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorPalette = ColorPalette() 139ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorPaletteList.append(colorPalette) 140ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorPalette.uiNameID = struct.unpack(">H", data[pos:pos+2])[0] 141ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod pos = pos + 2 142ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorPalette.paletteColors = paletteColors = [] 143ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod j = 0 144ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod while j < numColorParams: 145ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorRecord, colorPaletteData = sstruct.unpack2(colorRecord_format_0, data[pos:], ColorRecord()) 146ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod paletteColors.append(colorRecord) 147ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod j += 1 148ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod pos += 4 149ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod i += 1 150ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 151ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod def decompile_format_1(self, data, ttFont): 152ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod pos = 2 153ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.numEntries = struct.unpack(">H", data[pos:pos+2])[0] 154ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod pos += 2 155ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.decompileEntryList(data, pos) 156ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 1571e4c89f83aa3fb63c0973f59de2d91a07683de75Behdad Esfahbod def decompileEntryList(self, data): 158ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod # data starts with the first entry of the entry list. 1591e4c89f83aa3fb63c0973f59de2d91a07683de75Behdad Esfahbod pos = subTableStart = self.offsetToSVGDocIndex 1601e4c89f83aa3fb63c0973f59de2d91a07683de75Behdad Esfahbod self.numEntries = numEntries = struct.unpack(">H", data[pos:pos+2])[0] 1611e4c89f83aa3fb63c0973f59de2d91a07683de75Behdad Esfahbod pos += 2 162ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if self.numEntries > 0: 163ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod data2 = data[pos:] 164ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.docList = [] 165ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.entries = entries = [] 166ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod i = 0 167ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod while i < self.numEntries: 168ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod docIndexEntry, data2 = sstruct.unpack2(doc_index_entry_format_0, data2, DocumentIndexEntry()) 169ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod entries.append(docIndexEntry) 170ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod i += 1 171ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 172ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod for entry in entries: 1731e4c89f83aa3fb63c0973f59de2d91a07683de75Behdad Esfahbod start = entry.svgDocOffset + subTableStart 174ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod end = start + entry.svgDocLength 175ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod doc = data[start:end] 176ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.docList.append( [doc, entry.startGlyphID, entry.endGlyphID] ) 177ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 178ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod def compile(self, ttFont): 179ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if hasattr(self, "version1"): 180ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod data = self.compileFormat1(ttFont) 181ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod else: 182ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod data = self.compileFormat0(ttFont) 183ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod return data 184ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 185ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod def compileFormat0(self, ttFont): 186ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod version = 0 187ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod offsetToSVGDocIndex = SVG_format_0Size # I start the SVGDocIndex right after the header. 188ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod # get SGVDoc info. 189ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod docList = [] 190ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod entryList = [] 191ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod numEntries = len(self.docList) 192ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod datum = struct.pack(">H",numEntries) 193ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod entryList.append(datum) 1941e4c89f83aa3fb63c0973f59de2d91a07683de75Behdad Esfahbod curOffset = len(datum) + doc_index_entry_format_0Size*numEntries 195ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod for doc, startGlyphID, endGlyphID in self.docList: 196ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod docOffset = curOffset 197ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod docLength = len(doc) 198ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod curOffset += docLength 199ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod entry = struct.pack(">HHLL", startGlyphID, endGlyphID, docOffset, docLength) 200ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod entryList.append(entry) 201ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod docList.append(doc) 202ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod entryList.extend(docList) 203ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod svgDocData = "".join(entryList) 204ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 205ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod # get colorpalette info. 206ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if self.colorPalettes == None: 207ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod offsetToColorPalettes = 0 208ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod palettesData = "" 209ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod else: 210ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod offsetToColorPalettes = SVG_format_0Size + len(svgDocData) 211ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod dataList = [] 212ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod numColorParams = len(self.colorPalettes.colorParamUINameIDs) 213ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod datum = struct.pack(">H", numColorParams) 214ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod dataList.append(datum) 215ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod for uiNameId in self.colorPalettes.colorParamUINameIDs: 216ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod datum = struct.pack(">H", uiNameId) 217ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod dataList.append(datum) 218ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod numColorPalettes = len(self.colorPalettes.colorPaletteList) 219ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod datum = struct.pack(">H", numColorPalettes) 220ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod dataList.append(datum) 221ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod for colorPalette in self.colorPalettes.colorPaletteList: 222ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod datum = struct.pack(">H", colorPalette.uiNameID) 223ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod dataList.append(datum) 224ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod for colorRecord in colorPalette.paletteColors: 225ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod data = struct.pack(">BBBB", colorRecord.red, colorRecord.green, colorRecord.blue, colorRecord.alpha) 226ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod dataList.append(data) 227ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod palettesData = "".join(dataList) 228ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 229ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod header = struct.pack(">HLL", version, offsetToSVGDocIndex, offsetToColorPalettes) 230ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod data = [header, svgDocData, palettesData] 231ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod data = "".join(data) 232ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod return data 233ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 234ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod def compileFormat1(self, ttFont): 235ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod version = 1 236ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod numEntries = len(self.docList) 237ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod header = struct.pack(">HH", version, numEntries) 238ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod dataList = [header] 239ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod docList = [] 240ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod curOffset = SVG_format_1Size + doc_index_entry_format_0Size*numEntries 241ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod for doc, startGlyphID, endGlyphID in self.docList: 242ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod docOffset = curOffset 243ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod docLength = len(doc) 244ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod curOffset += docLength 245ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod entry = struct.pack(">HHLL", startGlyphID, endGlyphID, docOffset, docLength) 246ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod dataList.append(entry) 247ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod docList.append(doc) 248ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod dataList.extend(docList) 249ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod data = "".join(dataList) 250ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod return data 251ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 252ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod def toXML(self, writer, ttFont): 253ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.newline() 254ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod for doc, startGID, endGID in self.docList: 255ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.begintag("svgDoc", startGlyphID=startGID, endGlyphID=endGID) 256ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.newline() 257ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.writeraw("<![CDATA["+ doc + "]]>") 258ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.newline() 259ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.endtag("svgDoc") 260ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.newline() 261ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 2621e4c89f83aa3fb63c0973f59de2d91a07683de75Behdad Esfahbod if (self.colorPalettes != None) and (self.colorPalettes.numColorParams != None): 263ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.begintag("colorPalettes") 264ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.newline() 265ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod for uiNameID in self.colorPalettes.colorParamUINameIDs: 266ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.begintag("colorParamUINameID") 267ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.writeraw(str(uiNameID)) 268ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.endtag("colorParamUINameID") 269ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.newline() 270ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod for colorPalette in self.colorPalettes.colorPaletteList: 271ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.begintag("colorPalette", [("uiNameID", str(colorPalette.uiNameID))]) 272ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.newline() 273ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod for colorRecord in colorPalette.paletteColors: 274ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorAttributes = [ 275ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod ("red", hex(colorRecord.red)), 276ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod ("green", hex(colorRecord.green)), 277ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod ("blue", hex(colorRecord.blue)), 278ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod ("alpha", hex(colorRecord.alpha)), 279ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod ] 280ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.begintag("colorRecord", colorAttributes) 281ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.endtag("colorRecord") 282ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.newline() 283ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.endtag("colorPalette") 284ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.newline() 285ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 286ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.endtag("colorPalettes") 287ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.newline() 288ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod else: 289ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.begintag("colorPalettes") 290ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.endtag("colorPalettes") 291ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod writer.newline() 292ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 2933a9fd301808f5a8991ca9ac44028d1ecb22d307fBehdad Esfahbod def fromXML(self, name, attrs, content, ttFont): 294ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod import re 295ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if name == "svgDoc": 296ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if not hasattr(self, "docList"): 297ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.docList = [] 298ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod doc = "".join(content) 299ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod doc = doc.strip() 300ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod startGID = int(attrs["startGlyphID"]) 301ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod endGID = int(attrs["endGlyphID"]) 302ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.docList.append( [doc, startGID, endGID] ) 303ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod elif name == "colorPalettes": 304ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.colorPalettes = ColorPalettes() 3053a9fd301808f5a8991ca9ac44028d1ecb22d307fBehdad Esfahbod self.colorPalettes.fromXML(name, attrs, content, ttFont) 306ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if self.colorPalettes.numColorParams == 0: 307ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.colorPalettes = None 308ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod else: 3093ec6a258238b6068e4eef3fe579f1f5c0a06bbbaBehdad Esfahbod print("Unknown", name, content) 310ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 311ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbodclass DocumentIndexEntry: 312ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod def __init__(self): 313ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.startGlyphID = None # USHORT 314ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.endGlyphID = None # USHORT 315ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.svgDocOffset = None # ULONG 316ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.svgDocLength = None # ULONG 317ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 318ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod def __repr__(self): 319ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod return "startGlyphID: %s, endGlyphID: %s, svgDocOffset: %s, svgDocLength: %s" % (self.startGlyphID, self.endGlyphID, self.svgDocOffset, self.svgDocLength) 320ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 321ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbodclass ColorPalettes: 322ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod def __init__(self): 323ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.numColorParams = None # USHORT 324ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.colorParamUINameIDs = [] # list of name table name ID values that provide UI description of each color palette. 325ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.numColorPalettes = None # USHORT 326ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.colorPaletteList = [] # list of ColorPalette records 327ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 3283a9fd301808f5a8991ca9ac44028d1ecb22d307fBehdad Esfahbod def fromXML(self, name, attrs, content, ttFont): 329ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod for element in content: 330ac1b4359467ca3deab03186a15eae1d55eb35567Behdad Esfahbod if isinstance(element, type("")): 331ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod continue 332ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod name, attrib, content = element 333ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if name == "colorParamUINameID": 334ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod uiNameID = int(content[0]) 335ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.colorParamUINameIDs.append(uiNameID) 336ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod elif name == "colorPalette": 337ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorPalette = ColorPalette() 338ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.colorPaletteList.append(colorPalette) 339ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorPalette.fromXML((name, attrib, content), ttFont) 340ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 341ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.numColorParams = len(self.colorParamUINameIDs) 342ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.numColorPalettes = len(self.colorPaletteList) 343ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod for colorPalette in self.colorPaletteList: 344ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if len(colorPalette.paletteColors) != self.numColorParams: 345ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad 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)) 346ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 347ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbodclass ColorPalette: 348ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod def __init__(self): 349ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.uiNameID = None # USHORT. name table ID that describes user interface strings associated with this color palette. 350ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.paletteColors = [] # list of ColorRecords 351ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 3523a9fd301808f5a8991ca9ac44028d1ecb22d307fBehdad Esfahbod def fromXML(self, name, attrs, content, ttFont): 353ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.uiNameID = int(attrs["uiNameID"]) 354ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod for element in content: 355ac1b4359467ca3deab03186a15eae1d55eb35567Behdad Esfahbod if isinstance(element, type("")): 356ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod continue 357ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod name, attrib, content = element 358ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod if name == "colorRecord": 359ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorRecord = ColorRecord() 360ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.paletteColors.append(colorRecord) 361ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorRecord.red = eval(attrib["red"]) 362ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorRecord.green = eval(attrib["green"]) 363ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorRecord.blue = eval(attrib["blue"]) 364ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod colorRecord.alpha = eval(attrib["alpha"]) 365ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod 366ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbodclass ColorRecord: 367ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod def __init__(self): 368ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.red = 255 # all are one byte values. 369ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.green = 255 370ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.blue = 255 371ddcca79308b52dc36b24ef94cab4ab00c8e32376Behdad Esfahbod self.alpha = 255 372