OS.bee Signature Pad

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Signature Pad

Using signature pad for payment process is a new cash payment method.

Basic Functionalities

Basic functionalities of display on signature pad are:

  • Show the advertising slide images on signature pad one after another according to de slide delay predefined in Company( in our example, for company FoodMart, the slide delay is defined as 2000, which means 2 seconds).
  • When the customer signature is required, the display image on the signature pad will switch to the signing image, additional 3 buttons will be shown under the signing image: done, cancle and delete.(these labels could be translated with I18n)

Functionalities after signing

The following image is the signing image in our example.

Signing image.jpeg

  • Customer signs, and then select “done”, the signature of customer will be saved as a blob-mapping data, saving as thousands of points with x,y, pressure... the display of signature pad switch to the advertising slide images.
  • Customer signs, and then select “cancle”, the signature process will be broken, switch to the advertising slide images.
  • Customer signs, and then select “clear”, the signature will be deleted, and waiting for the next action of customer.

Technical changes in DSL model

changes in entity

  1. New entity AdvertisingSlide : 
    entity AdvertisingSlide extends BaseUUID {
	persistenceUnit "businessdata"
	domainKey String slide
	var Date showFrom properties( key="Date" value="Minute")
	var Date showUntil properties(key="Date" value="Minute")
	var BlobMapping image
	ref Company company opposite slides
}
    • slide: name of this slide.
    • ShowFrom and showUntil: valid date interval for this slide.
    • Image: save this slide as a blobmapping data.
    • Company: which company using this slide.
  2. New properties and references in entity Company: 
    entity Company extends BaseUUID { 
	. . .
	var BlobMapping signingImage
	var int slideDelay properties(key="Slider" value="1000:10000")
	ref AdvertisingSlide[*] slides opposite company properties( key = "Table" value = "" )
	. . .
}
    • signingImage: save the signing image as a blobmapping data. signingImage is the image which will be displayed on signature pad when customer signes.
    • slideDelay: define the time delay for changing advertising slide image, unit is ms, and this value should be between 1000 and 10000, which means the delay should be between 1 second and 10 seconds.
    • Slides: define a set of advertisingSlides for this company. These advertising slide images will be displayed one after another on the signature pad when no actions on it.
  3. A new Cash Payment Method "signaturePad": If the customer selects this payment way, the signature pad will be active.
  4. New entity CashPaymentPenData : 
    entity CashPaymentPenData extends BaseUUID {
	persistenceUnit "businessdata"
	var int rdy
	var int sw
	var int pressure
	var int x
	var int y
	ref CashPayment payment opposite penData
}
    • The signature image will be saved as a CashPaymentPenData. All this relevant data value is generated from WACOM(mark of signature pad) software. The important values are pressure amount and cursor coordinates x and y. They will be saved save as a blob-mapping data, which including thousands of points with all the important values.
  5. Some new properties and references are defined in entity CashPayment: 
    entity CashPayment extends BaseUUID {
. . .
	var BlobMapping signatureBitmap
	ref cascade CashPaymentPenData[*] penData opposite payment 
}

changes in statemachine

  1. New payment method "payment signing"
    It is defined as a new statemachine event "onMethod7".
    A new peripheral is defined in statemachine for it:
    peripheral PeripheralControl {
	. . .
	signaturePad SignaturePad
}
    A new button is defined for it in paypad of statemachine:
    keypad PaymentPad event trigger {
	. . .
	button method7 image "" event onMethod7 
}
  2. New keypad "PluPad" 
    keypad PluPad event identity from 1 until 6  named "plu"
  3. Changes in statemachine state "IDLE": 
    trigger onStartUp
actions transition LOCKED{
	. . .
	closeSignaturePad @SignaturePad
	. . .
}
  4. Changes in statemachine state "LOCKED": 
    trigger onOk
actions transition ATTENTIVE{
	. . .
	operation loadPLU()
	operation loadPaymentMethods() 
	store "false" with paymentterminal.open
	paymentOpen host dto cashregister.payment_ip port dto cashregister.payment_port @VeriFone
	labelSignaturePad okLabel "done" clearLabel "clear" cancelLabel "cancel" @SignaturePad
	store "false" with signaturepad.open
	openSignaturePad @SignaturePad
	. . .
}
  5. Changes in statemachine state "ATTENTIVE", new trigger "onSignaturePadOpen" for signaturePad: 
    trigger onSignaturePadOpen
actions {
	store "true" with signaturepad.open
	operation initImages()
	idleSignaturePad @SignaturePad
}
  6. Changes in statemachine state "PAYMENT": 
    trigger onBack
actions transition ATTENTIVE {
	idleSignaturePad @SignaturePad
	. . .
}
</syntaxhighlight
#:<syntaxhighlight lang="java">
trigger onMethod1 onMethod2 onMethod3 onMethod4 onMethod5 onMethod6 onMethod7
actions {
	. . .
	transition SIGNATURE_AUTHORIZATION guard useSignaturePad {
		visible signaturePadDisplay
		invisible money
		invisible method
		invisible functions
		store event with paymentMethod.last
		captureSignaturePad @SignaturePad
	}
	idleSignaturePad @SignaturePad
	. . .
}
  7. In statemachine new state "SIGNATURE_AUTHORIZATION": 
    state SIGNATURE_AUTHORIZATION {
	triggers {
		trigger onSignatureOk
 		actions transition PAYMENT {
 			idleSignaturePad @SignaturePad
			operation dopayment(retrieve from paymentMethod.last)
			operation computePayed()
			set "0" @paymentGiven
			clearDevice LineDisplay
			lineDisplayTextAt translate "total" row 0 column 0 @LineDisplay
			lineDisplayTextAt translate "remain" row 0 column 10 @LineDisplay
			lineDisplayTextAt function getPaymentTotal() row 1 column 0 @LineDisplay
			lineDisplayTextAt function getPaymentRemain() row 1 column 10 @LineDisplay
			invisible paymentTerminalDisplay
			invisible signaturePadDisplay
			visible money
			visible method
			visible functions
			operation givenChanged()
			transition PRINT_SLIP guard isPayed {
				invisible total
				invisible logout
				invisible PaymentPad
				invisible paymentFields
				invisible functions
				invisible numbers
				invisible plu
				invisible money
				invisible method
				invisible filterToggle
				visible receipt
				visible printreceipt
				visible noreceipt
				visible paymentFields
				clearDevice LineDisplay
				lineDisplayTextAt translate "total" row 0 column 0 @LineDisplay
				lineDisplayTextAt translate "change" row 0 column 10 @LineDisplay
				lineDisplayTextAt function getPaymentTotal() row 1 column 0 @LineDisplay
				lineDisplayTextAt function getPaymentChange() row 1 column 10 @LineDisplay
				transition OPEN_DRAWER guard mustOpenDrawer {
					openDrawer CashDrawer
				}
			}
		}
		trigger onSignatureCancel
		actions transition PAYMENT {
			idleSignaturePad @SignaturePad
			invisible signaturePadDisplay
			visible money
			visible method
			visible functions
			operation givenChanged()
		}
	}
}

changes in functionlibrary

  1. New guard function "useSignaturePad" in functionlibrary DSL : 
    guard useSignaturePad(IStateMachine stateMachine) {
	var slip =  stateMachine.get("cashslip") as CashSlipDto
		stateMachine.set("signaturePadDisplayResolution" , 5)
		stateMachine.set("signaturePadDisplay", slip.register.store.company.signingImage)
	var paymentMethodDto = stateMachine.getStorage(stateMachine.getLastTrigger(), "dto") as CashPaymentMethodDto
	var isopen = "true".equals(stateMachine.getStorage("signaturepad", "open") as String)
	return paymentMethodDto.signaturePad && isopen
}
  2. New operation "initImages" in functionlibrary DSL: 
    operation initImages(IStateMachine stateMachine, Object [] params) {
	var cashregister = stateMachine.get("cashregister") as CashRegisterDto
	if(cashregister === null) {return false}
	stateMachine.set("CustomerDisplayImage", cashregister.store.company.companyImage)
	stateMachine.set("signatureSlideDelay", cashregister.store.company.slideDelay)
	stateMachine.set("signatureCaptureImage", cashregister.store.company.signingImage)
	for(slide:cashregister.store.company.slides) {
		stateMachine.set("signatureAddSlide", slide.image)
	}	
	return true
}
  3. New method in operation "dopayment()" for save the signature image: 
    var spIsOpen = "true".equals(stateMachine.getStorage("signaturepad", "open") as String)
if(spIsOpen && paymentMethodDto.signaturePad) {
	var signatureBlob = stateMachine.get("SignatureBlob") as String
	paymentPosition.signatureBitmap = signatureBlob
	stateMachine.set("signaturePadDisplay", signatureBlob)
	var data = stateMachine.get("PenData") as List<PenData>
'''Bold text'''	if(data !== null) {
		for(pData:data) {
			var penDataDto 		= new CashPaymentPenDataDto
			penDataDto.rdy 		= pData.rdy
			penDataDto.sw 		= pData.sw
			penDataDto.pressure	= pData.pressure
			penDataDto.x 		= pData.x
			penDataDto.y 		= pData.y
			paymentPosition.addToPenData(penDataDto)
		}
	}
}

Maintenance with OS.bee App

►In menu--> Master data-->Company, the detail of entity "Company" can be set:

Menu company.png

You could see 4 block on this page, and the two upper block is important for us to maintenance the master data of company.

Page company 4parts.png
  • The upper left block show the main elements of company.
    • The first tab is "Company", you can choose the company name and set slide signing image and slide delay for this company here.
    600px
    If you do not see the magnifier search icon after company name field, please click it to change.
    ►With the magnifier search icon, you will get the whole suggestion company name in the insert field after you insert only the first letter of the company name.
    600px
    • The third tab "Slides" shows all advertising slides, and if you click one of them, the detail of this advertising slide (entity AdvertisingSlides) will be shown on the third tab “Slides” of the upper right block.
    Tab Slides dialog Slides.png
    You can see all the advertising slides for the company in this tab "Slides".
    Tab Slides.png
    You can maintenance detail of the selected advertising slide in the dialog "Slides".
    Dialog Slides.png

►In menu--> Master data-->Cash register data, you can maintenance the details about payment method:

Menu cash register data.png

You could see 5 parts on this page.

Page cash register data 5parts.png
  • You can select one of the store in the upper left table, e.g.: store 1. Then the detail of this store will be shown in the first tab “Mstore” of the upper middle block. You could edit it here in this dialog.
    Tab Mstore.png
    • Select the 4th tab “Registers” of the upper middle block, the detail of all registers for the selected store will be shown in this table.
    Tab Registers.png
    Select one of the registers and the detail of this register will be shown in the first tab “Cash register dialog” of the upper right block. You can create new register and edit it in this dialog.
    ►Pay attention: your IP should be register before you use the signature pad .
    Tab cash register dialog.png
    You can see all the cash payment methods for the store in the bottom left block.
    Table Cash payment method.png
    You can maintenance detail of the selected cash payment method in the bottom right block.
    Dialog Cash payment method.png

Copyright Notice

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