Custom Widget for Wakanda 8 BUILD : 8.158756 (http://wakanda.org)

The SignaturePad allows you drawing smooth signatures. It's HTML5 canvas based and uses variable width Bezier curve interpolation This widget is an integration of JQUERY PLUGIN from : https://github.com/szimek/signature_pad

It works in all modern desktop and mobile browsers and doesn't depend on any external libraries.

Properties and Events

This widget has the following properties:

• dotSize (float or function) Radius of a single dot.
• minWidth (float) Minimum width of a line. Defaults to 0.5.
• maxWidth (float) Maximum width of a line. Defaults to 2.5.
• backgroundColor (string) Color used to clear the background. Can be any color format accepted by context.fillStyle. Defaults to "rgba(0,0,0,0)" (transparent black). Use a non-transparent color e.g. "rgb(255,255,255)" (opaque white) if you'd like to save signatures as JPEG images.
• penColor (string) Color used to draw the lines. Can be any color format accepted by context.fillStyle. Defaults to "black".
• velocityFilterWeight (float) Weight used to modify new velocity based on the previous velocity. Defaults to 0.7.

Events :

• onBegin (function) Callback when stroke begin.
• onEnd (function) Callback when stroke end.

####Methods :

• clear
• (function) clear the widget
• isEmpty
• (function) return true if there is not signature in the widget

More Information

For more information on how to install a custom widget, refer to Installing a Custom Widget.

For more information about Custom Widgets, refer to Custom Widgets in the Architecture of Wakanda Applications manual.