* fix(render): optimize table styles, chart lookups, line trimming, and canvas limits
* fix(render): give outer-shadow passes their own traversal budget
A shadowed group's silhouette pass shared the 100,000-visit limit with normal drawing, so a group with many children could use it up before anything visible was drawn.
* perf(render): resolve a table's style once per draw
The reader stored a series-level `c:dLbls/c:showVal` in
`Series.data_labels`, but every drawing path tested only the chart-wide
`Chart.data_labels`: a series that asked for labels got none, and a
series that asked for none got them. The series' own setting now wins,
and a bare `<c:showVal/>` (no `val` attribute) means true, as the
schema's default.
The plot group's own setting is respected too: a group that asks for no
labels keeps them off, even when another group of a combo chart asks for
them. Before, any group that asked turned the chart-wide setting on, and
the group that said no inherited it.
Tests: `crates/pptx/tests/chart_data_labels.rs` - a bare series
`showVal` shows that series' labels while its siblings stay quiet; an
explicit `val="0"` on the first series keeps it quiet under a chart-wide
on; a combo chart keeps each group's own setting; all three settings
round-trip. Red-proof: with the series-level setting ignored, the first
two fail; with the group's setting ignored, the combo chart's bar group
shows labels it asked to keep quiet.
The model gains `Chart::series_data_labels`, the one place that decides
whether a series' labels show; the render paths (bar, column, line,
area, pie, doughnut, radar, scatter) call it.
Read the regionMap chartEx layout as a RegionMap chart (regions and
their colour values), write the part back as read while unchanged, and
when edited rebuild it with the original geography (projection, culture
and cached boundaries) carried over. With no map data in the repo, the
renderer draws each region as a value-coloured tile with a colour scale
and a note that the map itself is not drawn.
Co-authored-by: Cursor <cursoragent@cursor.com>
Read, keep and write every cx:lvl of a chartEx category dimension,
build a category tree from runs of parent labels, and draw treemaps as
nested squarified groups with banners and sunbursts as one ring per
level. Box & whisker honours quartileMethod="inclusive" (QUARTILE.INC)
on import, render, save and the chart.options command.
Co-authored-by: Cursor <cursoragent@cursor.com>
Histograms and Paretos bin their observations (bin count, bin width or
Scott's rule) and draw as touching columns, a Pareto with its cumulative
line on a percentage axis. Box and whisker charts draw exclusive-quartile
boxes, 1.5 IQR whiskers, means and outliers per category group.
Edited and new Office 2016 charts are written as chartEx parts from the
model (with the plain-chart fallback), so a waterfall stays a waterfall.
The chart menus list all seven types, and chart.options sets bins and
waterfall totals.
Co-authored-by: Cursor <cursoragent@cursor.com>
These Office 2016 charts were drawn as plain columns. Now:
- waterfall: bars float from the running total, total points
(cx:subtotals, now read into Chart.subtotals) stand on the axis and
reset it, increases/decreases/totals take accents 1-3 with a matching
legend, and connectors join each bar to the next;
- funnel: centred bars as wide as their value, category labels on the
left and values inside;
- treemap: squarified tiles in proportion to their value, labelled;
- sunburst: the innermost level as a ring with an open centre.
Co-authored-by: Cursor <cursoragent@cursor.com>
Dylan M. Taylor