New "Grafiek" slide type rendering bar, line and pie charts.
Storage fits Marp: a ```chart fenced block holds the spec as JSON. Small
charts keep their data inline (the .md stays self-contained); data-driven
charts link an external CSV via "source": "data/<name>.csv" kept in a
separate data/ directory and packaged into .ocideck like images. On save
the inline data is stripped for linked charts (the CSV is the source of
truth); on open it is re-hydrated from the CSV.
- lib/models/chart.dart: ChartSpec/ChartSeries JSON parse/serialize,
inline-vs-source handling, and a CSV parser.
- In-app rendering (preview/presenter/PDF/PPTX) via fl_chart.
- HTML export renders charts as self-contained inline SVG generated in
Dart (no JS chart library); export inlines linked data so the page is
standalone.
- Editor: type picker, title, a CSV-style data field, and CSV import that
can inline the data or link it as data/<name>.csv (with unlink).
- Markdown round-trip + .ocideck packaging of linked CSVs; translations
for all supported languages.
flutter analyze is clean, all tests pass (new chart/CSV/round-trip tests),
and the macOS debug build compiles.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
New export target: a single offline .html rendered from the deck's Marp
Markdown. Bundles (inlines) marked, highlight.js, MathJax (tex-svg, no font
files) and mermaid, so code highlighting, LaTeX math and mermaid diagrams all
render in any browser with no network access.
- MarpHtmlService splits the deck on `---`, strips front-matter, and inlines
the vendored libraries (assets/web_export/) with a </script> breakout guard.
The asset loader is injectable for testing.
- ExportFormat.html wired through ExportService (no rasterization needed),
the export dialog (new button, skips slide rendering) and app_shell
(passes the generated Markdown). Export dialog is now scrollable.
Note: rendered with marked, not Marp Core, so theme fidelity differs from the
in-app preview / PDF / PPTX; the win is a portable, dependency-free deck.
Tests: slide splitting, library inlining, breakout escaping, and an
end-to-end .html export.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
