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Change Log

All notable changes to this project will be documented in this file. See Conventional Commits for commit guidelines.

Unreleased — Rotation support

Packages with breaking changes:

  • box_transform - Unreleased: the default bindingStrategy on BoxTransformer.move/resize/rotate flips from originalBox to boundingBox. The old behavior is preserved for callers that pass the strategy explicitly. The list-based LP inspection API (LinearInequality, ProjectionResult, buildCornerInequalities, buildCenterInequalities, projectOntoFeasibleRegion) is removed; production callers go through the flat-buffer hot path (IneqBuffer + *Into builders + projectOntoFeasibleRegionFlat), and tests use a private test helper at test/lp_inspect.dart.
  • flutter_box_transform - Unreleased: the default bindingStrategy on TransformableBox, TransformableBoxController, and UIBoxTransform.* flips from originalBox to boundingBox. Existing apps will see a behavior change at non-zero rotation: the rendered footprint is now the containment surface, not the unrotated logical rect. Top-level rotated-layout helpers (rotateOffsetAround, handleCornerInParent, rotatedCornerInWorld, anchorInHandle, handleTopLeftInWorld, sideHandleRectInWorld, computeEffectiveContainmentRect) are relocated as static methods on RotatedLayout; the file-private default handle builders are promoted to HandleBuilders.defaultCorner / HandleBuilders.defaultSide. The top-level defaultResizeModeResolver() is relocated to TransformableBoxController.defaultResizeModeResolver().

Packages with other changes:

box_transform - Unreleased

  • Add first-class rotation support around a box's center via Box.rotation and a new BoxTransformer.rotate(...) entry point.
  • Add BindingStrategy enum: originalBox keeps the unrotated logical rect inside the clamp; boundingBox keeps the rendered rotated polygon (and therefore its axis-aligned bounding box) fully inside.
  • [BREAKING] Default bindingStrategy flipped from originalBox to boundingBox on BoxTransformer.move/resize/rotate. Pass BindingStrategy.originalBox explicitly to restore the previous behavior.
  • BoxTransformer.move(), .resize(), .rotate() are all rotation-aware. Freeform, scale, symmetric, symmetricScale, side-handle, and force-flip resize paths each honor rotation under both binding strategies.
  • Rotation gestures slide-then-freeze: when the requested angle would push the rect outside the clamp, the engine first tries to translate into available slack; if no translation rescues it, the rotation caps at the last feasible angle.
  • Force-flip on a rotated rect falls back to natural direction when the flipped state can't fit clamp + constraints. The rect tracks the cursor by clamp-pinning at the natural wall instead of leaking the clamp or freezing.
  • Add feasible field to RotateResult and ResizeResult. false means the engine could not honor the requested target without leaking; consumers (controllers) use it to hold the last feasible state.
  • Solver: dedicated rotated-clamping LP with corner-, side-, and center-anchored inequality builders, an L2 projector with 1D fallback at saturation, and a unified violator-priority loop. FlatProjection now exposes feasible + worstResidual.
  • Tests: extensive rotated-resize, rotated-move, rotated-flip, side-handle, scale, symmetric, symmetricScale, and clamp-invariant coverage. New clamp_invariants_test.dart asserts engine invariants (clamp containment, side-handle scope, constraint compliance) on recorded playground scenarios.

flutter_box_transform - Unreleased

  • [BREAKING] Top-level rotated-layout helpers are now static methods on RotatedLayout (rotateOffsetAround, handleCornerInParent, rotatedCornerInWorld, anchorInHandle, handleTopLeftInWorld, sideHandleRectInWorld, and computeEffectiveContainmentRect). The previous top-level forms are removed.
  • [BREAKING] Default handle builders moved from file-private functions to public statics on HandleBuilders (HandleBuilders.defaultCorner, HandleBuilders.defaultSide).
  • Add rotation, rotatable, and bindingStrategy parameters on TransformableBox.
  • [BREAKING] Default bindingStrategy flipped from originalBox to boundingBox on TransformableBox, TransformableBoxController, and UIBoxTransform.move/resize/rotate. Existing apps that relied on the unrotated-logical-rect semantic must pass BindingStrategy.originalBox explicitly.
  • Add per-corner rotation gesture: an outer ring around each corner-handle captures rotation when rotatable: true. Sized via rotationHandleGestureSize (default 64 px). Add rotation callbacks: onRotationStart / onRotationUpdate / onRotationEnd / onRotationCancel.
  • TransformableBoxController adds rotation, initialRotation, bindingStrategy, onRotateStart / onRotateUpdate / onRotateEnd / onRotateCancel. onResizeUpdate and onRotateUpdate skip state writes on result.feasible == false and override result.rect/result.rotation to the controller's last feasible value, so consumers binding visible state via callbacks (box.rect = result.rect) stay clamp-pinned at the last feasible position rather than snapping back to gesture-start.
  • Side handles render rotated under non-zero rotation and translate gesture coordinates into the box's un-rotated frame so resize tracks the cursor visually.
  • Hit-testing gates corner taps to the rotated polygon (not the AABB) so rotated boxes don't capture clicks in their AABB wedges.
  • Playground gains a rotation slider, bindingStrategy toggle, debug overlays for rotated/unrotated bounds, and a tick-by-tick test recorder that captures full gesture sequences (rotation + bindingStrategy aware) for regression replay.
  • Tests: rotated controller gestures, rotated layout, rotated drag hit-gating, rotated gesture integration, clamp-shrink continuity under rotation, and a force-flip fallback regression test.
  • [BREAKING] defaultResizeModeResolver() is now TransformableBoxController.defaultResizeModeResolver(). The top-level function has been removed; consumers that referenced it directly (e.g. as a default for resizeModeResolver) must update to the qualified static.

2025-03-26

Packages with changes:

flutter_box_transform - v0.4.7

  • Fix taps should pass through when onTap is not set. Issue#31

2024-09-14

Packages with changes:

flutter_box_transform - v0.4.6

  • Fix child positioning offset bug. Issue#27

2024-08-12

Packages with changes:

flutter_box_transform - v0.4.5

  • Add parameters for supported devices. (PR #28 by @Gold872).
  • Upgrade dependencies.

2024-06-17

Packages with breaking changes:

  • There are no breaking changes in this release.

Packages with other changes:

flutter_box_transform - v0.4.4

  • Update root pubspec.yaml name from box_transform to melos_box_transform.
  • Fix repository & homepage url in pubspec.yaml

box_transform - v0.4.4

  • Update root pubspec.yaml name from box_transform to melos_box_transform.
  • Fix repository & homepage url in pubspec.yaml

2024-06-17

Packages with breaking changes:

  • There are no breaking changes in this release.

Packages with other changes:

flutter_box_transform - v0.4.3

  • Update dependencies & resolve deprecation warnings.
  • Added onTap event to BoxTransformController. (PR #23 by @joakimunge)
  • Deny different transform operations when a box is already undergoing.
  • Add optional resizeModeResolver override to onResizeUpdate in TransformableBoxController.

box_transform - v0.4.3

  • Update dependencies & resolve deprecation warnings.
  • Fix a bug where terminal resize events triggered on the incorrect axis.

2023-06-07

Changes

Packages with breaking changes:

  • There are no breaking changes in this release.

Packages with other changes:

flutter_box_transform - v0.4.2

  • Fix an issue where visibleHandles disabled the handles instead of hiding them but keeping them enabled.

2023-06-06

Changes

Packages with breaking changes:

  • There are no breaking changes in this release.

Packages with other changes:

box_transform - v0.4.1

  • Remove DoubleExt from package exports.

flutter_box_transform - v0.4.1

  • Deny trackpad pointer devices to prevent erratic drag events when interacting with TransformableBox.
  • Inherit handleAlignment from TransformableBox for AngularHandle.
  • Add debugPaintHandleBounds param for painting handle bounds.

2023-06-04

Changes

Packages with breaking changes:

Packages with other changes:

  • There are no breaking changes in this release.

box_transform - v0.4.0

  • Fix stack overflow error when the clamping rect is smaller than the box rect.

flutter_box_transform - v0.4.0

  • [BREAKING]: Replace hideHandlesWhenNotResizable with enabledHandles and visibleHandles.
  • Replace the usage of Listener widgets with GestureDetectors in the TransformableBox.
  • Add new controls to the playground to reflect the new handle parameters.
  • Bump up box_transform version to 0.4.0.

2023-06-02

Changes

Packages with breaking changes:

  • There are no breaking changes in this release.

Packages with other changes:

flutter_box_transform - v0.3.2

  • Fix controller pattern not updating the UI when the controller is updated.
  • Change null resizeModeResolver pattern to a non-null pattern to fix a crash.
  • Correct two broken doc pages.

2023-06-01

Changes

Packages with breaking changes:

  • There are no breaking changes in this release.

Packages with other changes:

flutter_box_transform - v0.3.1

  • Bump up box_transform version to 0.3.0.

2023-06-01

Changes

Packages with breaking changes:

Packages with other changes:

  • There are no breaking changes in this release.

box_transform - v0.3.0

  • Refactored the core logic to make it more readable, cleaner and easier to maintain.
  • Fix issues with resizing, constraints, clamping and flipping.
  • [BREAKING]: Replace flipRect with allowFlipping.
  • [BREAKING]: Rename initialBox to initialRect in BoxTransformer.move and BoxTransformer.resize methods.
  • ResizeResult now exposes laregest rect and handle used.
  • Refactored code and performed some cleanup.
  • Bump up Dart sdk constraints to 3.0.0.
  • Update all documentation to reflect the new changes.
  • Fix broken links in docs.
  • Add tests for resizing features.

flutter_box_transform - v0.3.0

  • Bump up Dart sdk constraints to 3.0.0.
  • Bump up box_transform version to 0.3.0.
  • [BREAKING]: Replace onResized with onResizeUpdate.
  • [BREAKING]: Replace flipWhileResizing with allowFlippingWhileResizing.
  • [BREAKING]: Replace onMoved with onDragUpdate.
  • [BREAKING]: Rename resolveResizeModeCallback to resizeModeResolver.
  • [BREAKING]: onChanged callback now has two parameters: UITransformResult and PointerMoveEvent.
  • [BREAKING]: onTerminalSizeReached callback now also exposes underlying PointerEvent.
  • Add onResizeStart and onResizeEnd callbacks.
  • Add onDragStart and onDragEnd callbacks for move operation.
  • Add simple example alongside an advanced playground example.

2023-04-07

Changes

Packages with breaking changes:

  • There are no breaking changes in this release.

Packages with other changes:

box_transform - v0.2.1

  • Update license to Apache 2.0.
  • Update docs and fix broken links.

flutter_box_transform - v0.2.1

  • Update license to Apache 2.0.
  • Update playground to use unified clamping rect.
  • Update docs and fix broken links.

2023-04-07

Changes

Packages with breaking changes:

Packages with other changes:

box_transform - v0.2.0

  • Fix scaling of rect not matching cursor position.

flutter_box_transform - v0.2.0

  • Add hideHandlesWhenNotResizable flag to hide handles when the box is not resizable by @timmaffett.
  • BREAKING CHANGE: TransformableBox.childBuilder is now TransformableBox.contentBuilder.
  • More advanced example with multiple boxes.

2023-04-04

Changes

Packages with breaking changes:

  • There are no breaking changes in this release.

Packages with other changes:

box_transform - v0.1.1

  • Add example.

flutter_box_transform - v0.1.1

  • Bump "flutter_box_transform" to 0.1.1.

2023-04-03

Changes

Packages with breaking changes:

  • There are no breaking changes in this release.

Packages with other changes:

box_transform - v0.1.0

  • Bump "box_transform" to 0.1.0.

flutter_box_transform - v0.1.0

  • Bump "flutter_box_transform" to 0.1.0.