ToDo List

General

• Should we add layers, or grouping?
• Tests for multi-page
• Handle delayed font writing until text is written
• Adjust TestText2D to be better visible...
• Tagstrings should be handled better...

FontEmbedder

• Rewrite Lookup table (or subtables) to minimize startup effects

Format Specific

CGM

• Implement all version 2 tags
• Check output
• Char height factor 100 too large
• Positions factor 100 too large
• Use constants for classes of elements
• Check names (color->colour)
• Combine spec modes
• Check on version while writing dependent TagSet
• Include Raster data: this can be included internally as CELL ARRAYS, which use an internal run length encoding. With CGM version 3 the TILE ARRAY element supports additional compression schemes including CCITT T4, CCITT T6, JPEG or PNG (code 9, method 0).

EMF

• Make superclass for Poly and PolyPoly ?
• Make superclass for BitMap classes

GIF

• add color interpolator so that context can use more than 256 colors while gif will write only 256 colors.

PDF

• No check on rewriting /Length element in stream dictionary
• PDFStream: add marked content operators

SVG

• add to TagString <v> tag to surround a combination of <sup> and <sub> -> SVG glyphRun
• Use special symbol set in output