diff options
Diffstat (limited to 'Lib/fontTools/ttLib/tables/_m_a_x_p.py')
| -rw-r--r-- | Lib/fontTools/ttLib/tables/_m_a_x_p.py | 207 |
1 files changed, 104 insertions, 103 deletions
diff --git a/Lib/fontTools/ttLib/tables/_m_a_x_p.py b/Lib/fontTools/ttLib/tables/_m_a_x_p.py index e810806d..f0e6c33a 100644 --- a/Lib/fontTools/ttLib/tables/_m_a_x_p.py +++ b/Lib/fontTools/ttLib/tables/_m_a_x_p.py @@ -27,112 +27,113 @@ maxpFormat_1_0_add = """ class table__m_a_x_p(DefaultTable.DefaultTable): + dependencies = ["glyf"] - dependencies = ['glyf'] + def decompile(self, data, ttFont): + dummy, data = sstruct.unpack2(maxpFormat_0_5, data, self) + self.numGlyphs = int(self.numGlyphs) + if self.tableVersion != 0x00005000: + dummy, data = sstruct.unpack2(maxpFormat_1_0_add, data, self) + assert len(data) == 0 - def decompile(self, data, ttFont): - dummy, data = sstruct.unpack2(maxpFormat_0_5, data, self) - self.numGlyphs = int(self.numGlyphs) - if self.tableVersion != 0x00005000: - dummy, data = sstruct.unpack2(maxpFormat_1_0_add, data, self) - assert len(data) == 0 + def compile(self, ttFont): + if "glyf" in ttFont: + if ttFont.isLoaded("glyf") and ttFont.recalcBBoxes: + self.recalc(ttFont) + else: + pass # CFF + self.numGlyphs = len(ttFont.getGlyphOrder()) + if self.tableVersion != 0x00005000: + self.tableVersion = 0x00010000 + data = sstruct.pack(maxpFormat_0_5, self) + if self.tableVersion == 0x00010000: + data = data + sstruct.pack(maxpFormat_1_0_add, self) + return data - def compile(self, ttFont): - if 'glyf' in ttFont: - if ttFont.isLoaded('glyf') and ttFont.recalcBBoxes: - self.recalc(ttFont) - else: - pass # CFF - self.numGlyphs = len(ttFont.getGlyphOrder()) - if self.tableVersion != 0x00005000: - self.tableVersion = 0x00010000 - data = sstruct.pack(maxpFormat_0_5, self) - if self.tableVersion == 0x00010000: - data = data + sstruct.pack(maxpFormat_1_0_add, self) - return data + def recalc(self, ttFont): + """Recalculate the font bounding box, and most other maxp values except + for the TT instructions values. Also recalculate the value of bit 1 + of the flags field and the font bounding box of the 'head' table. + """ + glyfTable = ttFont["glyf"] + hmtxTable = ttFont["hmtx"] + headTable = ttFont["head"] + self.numGlyphs = len(glyfTable) + INFINITY = 100000 + xMin = +INFINITY + yMin = +INFINITY + xMax = -INFINITY + yMax = -INFINITY + maxPoints = 0 + maxContours = 0 + maxCompositePoints = 0 + maxCompositeContours = 0 + maxComponentElements = 0 + maxComponentDepth = 0 + allXMinIsLsb = 1 + for glyphName in ttFont.getGlyphOrder(): + g = glyfTable[glyphName] + if g.numberOfContours: + if hmtxTable[glyphName][1] != g.xMin: + allXMinIsLsb = 0 + xMin = min(xMin, g.xMin) + yMin = min(yMin, g.yMin) + xMax = max(xMax, g.xMax) + yMax = max(yMax, g.yMax) + if g.numberOfContours > 0: + nPoints, nContours = g.getMaxpValues() + maxPoints = max(maxPoints, nPoints) + maxContours = max(maxContours, nContours) + elif g.isComposite(): + nPoints, nContours, componentDepth = g.getCompositeMaxpValues( + glyfTable + ) + maxCompositePoints = max(maxCompositePoints, nPoints) + maxCompositeContours = max(maxCompositeContours, nContours) + maxComponentElements = max(maxComponentElements, len(g.components)) + maxComponentDepth = max(maxComponentDepth, componentDepth) + if xMin == +INFINITY: + headTable.xMin = 0 + headTable.yMin = 0 + headTable.xMax = 0 + headTable.yMax = 0 + else: + headTable.xMin = xMin + headTable.yMin = yMin + headTable.xMax = xMax + headTable.yMax = yMax + self.maxPoints = maxPoints + self.maxContours = maxContours + self.maxCompositePoints = maxCompositePoints + self.maxCompositeContours = maxCompositeContours + self.maxComponentElements = maxComponentElements + self.maxComponentDepth = maxComponentDepth + if allXMinIsLsb: + headTable.flags = headTable.flags | 0x2 + else: + headTable.flags = headTable.flags & ~0x2 - def recalc(self, ttFont): - """Recalculate the font bounding box, and most other maxp values except - for the TT instructions values. Also recalculate the value of bit 1 - of the flags field and the font bounding box of the 'head' table. - """ - glyfTable = ttFont['glyf'] - hmtxTable = ttFont['hmtx'] - headTable = ttFont['head'] - self.numGlyphs = len(glyfTable) - INFINITY = 100000 - xMin = +INFINITY - yMin = +INFINITY - xMax = -INFINITY - yMax = -INFINITY - maxPoints = 0 - maxContours = 0 - maxCompositePoints = 0 - maxCompositeContours = 0 - maxComponentElements = 0 - maxComponentDepth = 0 - allXMinIsLsb = 1 - for glyphName in ttFont.getGlyphOrder(): - g = glyfTable[glyphName] - if g.numberOfContours: - if hmtxTable[glyphName][1] != g.xMin: - allXMinIsLsb = 0 - xMin = min(xMin, g.xMin) - yMin = min(yMin, g.yMin) - xMax = max(xMax, g.xMax) - yMax = max(yMax, g.yMax) - if g.numberOfContours > 0: - nPoints, nContours = g.getMaxpValues() - maxPoints = max(maxPoints, nPoints) - maxContours = max(maxContours, nContours) - else: - nPoints, nContours, componentDepth = g.getCompositeMaxpValues(glyfTable) - maxCompositePoints = max(maxCompositePoints, nPoints) - maxCompositeContours = max(maxCompositeContours, nContours) - maxComponentElements = max(maxComponentElements, len(g.components)) - maxComponentDepth = max(maxComponentDepth, componentDepth) - if xMin == +INFINITY: - headTable.xMin = 0 - headTable.yMin = 0 - headTable.xMax = 0 - headTable.yMax = 0 - else: - headTable.xMin = xMin - headTable.yMin = yMin - headTable.xMax = xMax - headTable.yMax = yMax - self.maxPoints = maxPoints - self.maxContours = maxContours - self.maxCompositePoints = maxCompositePoints - self.maxCompositeContours = maxCompositeContours - self.maxComponentElements = maxComponentElements - self.maxComponentDepth = maxComponentDepth - if allXMinIsLsb: - headTable.flags = headTable.flags | 0x2 - else: - headTable.flags = headTable.flags & ~0x2 + def testrepr(self): + items = sorted(self.__dict__.items()) + print(". . . . . . . . .") + for combo in items: + print(" %s: %s" % combo) + print(". . . . . . . . .") - def testrepr(self): - items = sorted(self.__dict__.items()) - print(". . . . . . . . .") - for combo in items: - print(" %s: %s" % combo) - print(". . . . . . . . .") + def toXML(self, writer, ttFont): + if self.tableVersion != 0x00005000: + writer.comment("Most of this table will be recalculated by the compiler") + writer.newline() + formatstring, names, fixes = sstruct.getformat(maxpFormat_0_5) + if self.tableVersion != 0x00005000: + formatstring, names_1_0, fixes = sstruct.getformat(maxpFormat_1_0_add) + names = names + names_1_0 + for name in names: + value = getattr(self, name) + if name == "tableVersion": + value = hex(value) + writer.simpletag(name, value=value) + writer.newline() - def toXML(self, writer, ttFont): - if self.tableVersion != 0x00005000: - writer.comment("Most of this table will be recalculated by the compiler") - writer.newline() - formatstring, names, fixes = sstruct.getformat(maxpFormat_0_5) - if self.tableVersion != 0x00005000: - formatstring, names_1_0, fixes = sstruct.getformat(maxpFormat_1_0_add) - names = names + names_1_0 - for name in names: - value = getattr(self, name) - if name == "tableVersion": - value = hex(value) - writer.simpletag(name, value=value) - writer.newline() - - def fromXML(self, name, attrs, content, ttFont): - setattr(self, name, safeEval(attrs["value"])) + def fromXML(self, name, attrs, content, ttFont): + setattr(self, name, safeEval(attrs["value"])) |