hand_signature 3.1.0

The Signature Pad Widget that allows you to draw smooth signatures. With variety of draw and export settings. And also supports SVG.

[3.1.0] - Pressure, Custom Drawer, Path Setup

• Custom Drawing with HandSignatureDrawer: Introduced a new abstract class HandSignatureDrawer that allows for complete customization of how signatures are drawn. This provides developers with the flexibility to implement their own drawing logic by extending this class.
• Built-in Drawers: Added several built-in drawers for common use cases:
  • LineSignatureDrawer: Draws the path as simple lines.
  • ArcSignatureDrawer: Renders the path as a series of arcs with variable width.
  • ShapeSignatureDrawer: Draws the path as a filled shape.
  • DynamicSignatureDrawer: Dynamically selects a drawer based on parameters in the path data.
  • MultiSignatureDrawer: Allows combining multiple drawers for complex visual effects.
• Pressure Sensitivity: The signature input now captures pressure data from supported devices. The line thickness can vary with pressure. The pressureRatio in SignaturePathSetup can be used to balance between pressure and velocity.
• Path Configuration: Introduced SignaturePathSetup to provide a more structured way to configure path properties like smoothRatio, velocityRange, and pressureRatio. It also includes an args map for passing custom data to drawers.

State Handling

• Rendering: The drawing pipeline has been refactored to be more customizable, with SignaturePathSetup that can hold all the necessary variables for drawer.

• Data Serialization: The toMap and import methods in HandSignatureControl have been updated to version 2, which includes the SignaturePathSetup for each path and pressure value for each point.

• Also Comes with updated examples.

[3.0.3] - Updated Gesture Recognizer

Now can specify input type - PointerDeviceKind.

[3.0.1] - Fit

Resolve vertices scaling with fit flag in export.
Rename some properties to unify naming across library.

[3.0.0] - Dependency

Removed dependency on flutter_svg and removed HandSignatureView.

[2.3.0] - Import/Export current state (map/json)

Refactor HandSignaturePainterView to HandSignature

[2.2.0] - SVG wrap option

[2.1.1] - Ability to export exact image

toPicture and toImage now contains fit property.

[2.1.0] - Custom Gesture Recognizer

New GestureRecognizer based on OneSequenceGestureRecognizer that allows just one pointer and handles all pointer updates. All previous Recognizers have been removed.

[2.0.0] - Nullsafety

Minimum Dart SDK 2.12.0

[0.6.3] - Scroll

Added TapGestureDetector and current PanGestureDetector has been modified to support drawing in ScrollView.
Also pointer callbacks are now exposed to detect start and end of drawing.

[0.6.1] - Shape, Arc, Line

Draw line as single shape (huge performance update).
Selection of 3 draw styles (shape, arc, line). Arc is still nicest, but has performance issues..
SignatureDrawType.shape is now default draw and export style.

[0.5.1] - Dot

Support dot drawing based on last line size.
Minor performance updates.

[0.5.0] - Alpha version of signature pad.

Signature pad for smooth and real hand signatures.