| |
| |
| from fontTools.misc import sstruct |
| from fontTools.misc.textTools import safeEval |
| import logging |
|
|
| log = logging.getLogger(__name__) |
|
|
| bigGlyphMetricsFormat = """ |
| > # big endian |
| height: B |
| width: B |
| horiBearingX: b |
| horiBearingY: b |
| horiAdvance: B |
| vertBearingX: b |
| vertBearingY: b |
| vertAdvance: B |
| """ |
|
|
| smallGlyphMetricsFormat = """ |
| > # big endian |
| height: B |
| width: B |
| BearingX: b |
| BearingY: b |
| Advance: B |
| """ |
|
|
|
|
| class BitmapGlyphMetrics(object): |
| def toXML(self, writer, ttFont): |
| writer.begintag(self.__class__.__name__) |
| writer.newline() |
| for metricName in sstruct.getformat(self.__class__.binaryFormat)[1]: |
| writer.simpletag(metricName, value=getattr(self, metricName)) |
| writer.newline() |
| writer.endtag(self.__class__.__name__) |
| writer.newline() |
|
|
| def fromXML(self, name, attrs, content, ttFont): |
| metricNames = set(sstruct.getformat(self.__class__.binaryFormat)[1]) |
| for element in content: |
| if not isinstance(element, tuple): |
| continue |
| name, attrs, content = element |
| |
| if name in metricNames: |
| vars(self)[name] = safeEval(attrs["value"]) |
| else: |
| log.warning( |
| "unknown name '%s' being ignored in %s.", |
| name, |
| self.__class__.__name__, |
| ) |
|
|
|
|
| class BigGlyphMetrics(BitmapGlyphMetrics): |
| binaryFormat = bigGlyphMetricsFormat |
|
|
|
|
| class SmallGlyphMetrics(BitmapGlyphMetrics): |
| binaryFormat = smallGlyphMetricsFormat |
|
|
