Resize

Strategy module: appdimens_resize · part of the AppDimens Flutter family

What it is

Not a scaling curve: a search. It builds the candidate table [min…max] (capped at 4096 steps, always ending exactly at max) and binary-searches the largest candidate whose predicate fits.

Calculation used

steps = buildResizeStepsPx(minPx, maxPx, stepPx)
best  = findLargestFittingResizePx(steps, fits)   // O(log n)

Bounds may be fixed dp/sp or percents of an axis (ResizeBound, resizePercentSw, …).

How to use

import 'package:appdimens_resize/appdimens_resize.dart';
// Widgets
AutoResizeText('Headline', minSp: 10, maxSp: 28, maxLines: 2),
AutoResizeSquare(min: 40, max: 120, step: 4, child: …),

// Engine-level
final range = DimenResize.rangePx(scope, 10, 100, step: 2);
final side  = DimenResize.fittingInnerSquareSidePx(range, w, h);

Why use it

Text and squares must fit, not just scale — Resize guarantees the largest size that still fits the available space.

When to use it

Headlines, price tags, badges, responsive squares/avatars inside flexible containers.

Advantages & trade-offs

✅ Advantages	⚠️ Trade-offs
Guaranteed fit · O(log n) search · percent and fixed bounds
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Recommended usage strategy

Use AutoResizeText for any text with strict space limits; use engine-level helpers for custom widgets.

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AppDimens Flutter 3.2.0 — see MATHEMATICS-AND-CALCULUS.md for the formal derivation.