angular2-signaturepad-backwards-compatible

angular2-signaturepad-backwards-compatbile

This is a modified package that allows for backwards compatibility with angular 1 based signaturepad using fromDataOld(pointData).

Angular 2 component for szimek/signature_pad.

Install

npm install angular2-signaturepad-backwards-compatbile --save

Reference Implementation

• Live Demo
• Source

Usage example

API is identical to szimek/signature_pad.

Options are as per szimek/signature_pad with the following additions:

• canvasWidth: width of the canvas (px)
• canvasHeight: height of the canvas (px) The above options are provided to avoid accessing the DOM directly from your component to adjust the canvas size.

 
// import into app module
 
import { SignaturePadModule } from 'angular2-signaturepad';
 
...
 
@NgModule({
  declarations: [ ],
  imports: [ SignaturePadModule ],
  providers: [ ],
  bootstrap: [ AppComponent ]
})
 
// then import for use in a component
 
import { Component, ViewChild } from 'angular2/core';
import { SignaturePad } from 'angular2-signaturepad/signature-pad';
 
@Component({
  template: '<signature-pad [options]="signaturePadOptions" (onBeginEvent)="drawStart()" (onEndEvent)="drawComplete()"></signature-pad>'
})
 
export class SignaturePadPage{
 
  @ViewChild(SignaturePad) signaturePad: SignaturePad;
 
  private signaturePadOptions: Object = { // passed through to szimek/signature_pad constructor
    'minWidth': 5,
    'canvasWidth': 500,
    'canvasHeight': 300
  };
 
  constructor() {
    // no-op
  }
 
  ngAfterViewInit() {
    // this.signaturePad is now available
    this.signaturePad.set('minWidth', 5); // set szimek/signature_pad options at runtime
    this.signaturePad.clear(); // invoke functions from szimek/signature_pad API
  }
 
  drawComplete() {
    // will be notified of szimek/signature_pad's onEnd event
    console.log(this.signaturePad.toDataURL());
  }
 
  drawStart() {
    // will be notified of szimek/signature_pad's onBegin event
    console.log('begin drawing');
  }
}