any_treemap 1.0.0

A composable Flutter treemap with immutable hierarchical data, multiple layouts, drill-down interaction, and replaceable visual layers.

Changelog

1.0.0

• Added TreemapChart.surrounding, TreemapSurroundingContent, and TreemapSurroundingGrid for placing breadcrumbs, legends, and custom content in eight direction-aware cells around the treemap. The grid supports named slots or fromMap, uses standard flex layout, and leaves sizing to callers.
• Breadcrumbs and legends work as either direct surrounding layers or grid content; custom content uses the widget and builder factories.
• Split presentation from the treemap core. TreemapChart now consumes replaceable tile, label, semantics, tooltip, and surrounding-layer contracts; all contracts and implementations share the any_treemap.dart entry point.
• Removed implicit labels, tooltips, legends, breadcrumbs, semantics, empty text, palette, fallback colors, animation, and clipping from the core chart. A tile layer is explicit, and all color-scale fallbacks are required.
• Added no-op, composite, and widget-builder layers plus immutable visual contexts. Included labels and semantics target deepest visible blocks while tile layers retain ancestor geometry for hierarchy painting.
• Added optimized TreemapCanvasLabels and fully customizable, per-node clipped TreemapWidgetLabels. Canvas labels support a configurable ellipsis; label rendering no longer measures or changes layout geometry.
• Moved interaction contracts out of appearance code and changed presentation data labels/color values to remain nullable instead of inventing display strings or weight-based colors in the core.
• Removed per-node minimum dimensions from TreemapNode; minimum width, height, and area thresholds now belong exclusively to TreemapLayoutConfig.
• Removed device-pixel snapping from core geometry and removed implicit high-contrast appearance mutation and context state.
• Renamed node and record colorValue inputs to color. A Flutter Color now bypasses the included appearance resolver's configured color scale.
• Removed emptyBuilder, TreemapEmptyBuilder, and TreemapEmptyState; empty geometry now always produces the neutral SizedBox.shrink output.
• Moved flat-record construction to TreemapNode.fromRecords and removed both TreemapNodeFactory and TreemapChart.fromRecords.

0.1.0

• Introduced the clean standalone immutable API: TreemapNode<K>, TreemapChart<K>, TreemapLayoutConfig<K>, typed node details/results, and TreemapController<K>.
• Added explicit-tree and flat-record inputs through one validated normalizer.
• Added squarified, resquarified, slice, dice, alternating slice/dice, strip, binary-by-weight, binary-by-count, multilevel rules, sorting, origins, axes, spacing, padding, explicit minimum dimensions, and generated aggregate reveal.
• Added keyed animations, safe focus preservation, selection/multi-selection, hover, long press, tooltip lifecycle, breadcrumbs, and controller commands.
• Added exact, categorical, numeric-range, interpolated, and saturation color scales; discrete/bar legends; gradients; state styling; and virtualized tile/label builders.
• Added canvas semantics, keyboard navigation, RTL, locale formatter hooks, text scaling, reduced motion, platform behavior documentation, diagnostics, optional isolate layout, and benchmark budgets.
• Added property, unit, widget, gesture, accessibility, golden, public-extension, example-catalog, dependency-boundary, and feature-coverage validation.
• Removed all mutable legacy chart symbols, GlobalKey commands, private fl_chart integration, and fl_chart/equatable dependencies. No deprecated aliases, forwarding constructors, or compatibility adapters are included.