path_editor 1.0.0

A Flutter widget for visually editing vector paths, with a configurable Figma style pen tool.

1.0.0

• Modifier mappings can be set to null to disable their corresponding behaviours.
• Version 1.0.0 release

0.1.0-alpha.3

• NodeRemoval.preserveHandles, a third way to remove a point. Where NodeRemoval.preserveShape refits the handles of the two neighbours so the shape survives, the way Figma and Illustrator do it, the new mode leaves those handles exactly as they are and simply reconnects the path, the way InDesign does it.
• PathEditorBehavior.nodeRemoval, which picks the mode the editor uses when the user deletes a point without holding the cut modifier.

0.1.0-alpha.2

Added

• Handle selection: clicking a handle selects just that handle, and deleting it collapses it onto its point. Removing the last handle of a point turns it back into a corner, and bend dragging the point grows a symmetric pair again.

0.1.0-alpha.1

A rewrite of the editing model and the public API, adding a full pen tool. See the migration table in the README for the 0.0.x equivalents.

Added

• Pen tool: click to place corner points, click and drag to pull out Bézier handles, click a segment to insert a point, click the first point to close the path.
• Node centric model: PathNode owns the two handles around it, so handles can be linked (mirrored, aligned), broken (disconnected) or absent (corner), and nodes convert between those at any time.
• Multiple selection, with shift-click toggling and dragging the whole selection.
• Two ways to remove a point: NodeRemoval.preserveShape refits the surrounding curve so the shape survives, NodeRemoval.cut breaks the path. Cuts that would leave more than one open subpath are refused.
• Snapping to nodes, segment midpoints and alignment axes, with visual guides, an angle constraint and a modifier to suppress it.
• PathEditorThemeData and the PathEditorTheme inherited widget, with light and dark presets, copyWith and lerp.
• A bend interaction: holding PathEditorModifiers.bendPoint (command on macOS, control elsewhere) drags the curvature out of an existing point instead of moving it, converting a corner point into a smooth one, the way the bend tool works in design tools like Figma.
• PathEditorBehavior.allowMultipleSubpaths, which stops the pen tool from starting a second disconnected subpath for editors that must produce a single continuous path.
• PathEditorCursors for every contextual state, PathEditorModifiers for every modifier key, PathEditorShortcuts built on Flutter's Shortcuts/Actions, PathEditorSnapping and PathEditorBehavior.
• PathEditorViewport with pan and zoom; hit radii and editing chrome keep a constant size on screen at any zoom level.
• Editing callbacks, including onSegmentCreated for opening a stroke panel as the first segment appears.
• Transactions (controller.transaction), so a whole gesture is one undo step, and undo restores the selection it was made with.
• Keyboard support: delete, cut, close, finish, select all, nudge, undo, redo and tool switching.

Changed

• Breaking: PathEditorController is now a ChangeNotifier owning the path, the selection and the active tool, built with PathEditorController.fromSvg, .fromPath or .empty. It exposes pathListenable, selectionListenable and toolListenable.
• Breaking: PathPointIndex, PathSegmentIndex and ControlPointIndex are replaced by NodeRef, SegmentRef and HandleRef, which address subpaths correctly.
• Breaking: the flat styling parameters of PathEditor are replaced by the configuration objects listed above, and renderOffset by viewport.
• Breaking: the default stroke width is now 1 (was 2) and the active segment highlight is #4E80F9 (was Colors.blue).
• Inserting a point on a curved segment now splits the curve with de Casteljau's algorithm instead of inserting a straight line, so the shape is unchanged.
• Bounding boxes are computed from exact curve extrema rather than by sampling, so BoundsCheckAccuracy is gone.
• The editor paints through a single layered painter inside a repaint boundary, and rebuilds through granular listenables instead of setState on every pointer move.

Removed

• Breaking: PathHolder, beginUpdate/endUpdate, insertPoint, updatePointPosition, updateControlPointPosition, controlPointsAt, calculateBoundingBox, calculateBoundingBoxOfPath and BoundsCheckAccuracy.

0.0.3

• Add bounds calculation
• Add undo redo system

0.0.2

• Updates to pubspec
• Live demo with wasm support

0.0.1

• Initial version