alonso.torres f171c147f5 🎉 Add a CJK text selection menu and readings over several spans ...

Selecting text in a Japanese or Chinese layout now shows a menu above
the selection: Ruby, Emphasis, and for Japanese, Warichu and Combine.
Ruby opens an input to add, change or remove the reading; Emphasis
opens a list of marks with icons; Warichu and Combine toggle on the
selection. The renderer exports the selection bounds so the menu can
centre on them, and new icons draw each emphasis mark.

A reading had to cover a single span, so putting emphasis on part of a
word blocked furigana on it. A reading can now cover adjacent spans of
different styles:

- Applying a reading gives the selected spans one new ruby-group id.
  Splitting a span keeps the id. Spans without one, as in every
  existing file, keep one base per span; matching readings alone never
  join, so per-character readings such as 天天 stay apart.
- The span binary marks a span that joins the previous base with bit 2
  of the ruby flags byte, so the format keeps its size.
- Paragraph::ruby_groups defines a base for the renderer. Horizontal
  placement, long-reading spacing, paint, bounds, justification,
  overflow and line breaks use it, as do the vertical base units, ruby
  layout and column breaks.
- The editor accepts a reading over any selection without readings or
  warichu, or over a whole base. Warichu still needs one span.
- HTML and foreignObject draw one ruby per base, CSS code generation
  writes one set of rules per base, and SVG export draws one reading
  per line of a base through the new ruby-x and ruby-width keys.

AI-assisted-by: claude-opus-5-5

2026-11-12 00:49:45 +01:00

..

cases

🐛 Fix touched groups when detaching with nested copies

2024-07-30 14:28:37 +02:00

common_tests

🎉 Add a CJK text selection menu and readings over several spans

2026-11-12 00:49:45 +01:00