1 files changed, 56 insertions, 4 deletions
diff --git a/app/src/main/java/net/taler/merchantpos/ProcessPayment.kt b/app/src/main/java/net/taler/merchantpos/ProcessPayment.kt
index 81c1901..c98a3e4 100644
--- a/app/src/main/java/net/taler/merchantpos/ProcessPayment.kt
+++ b/app/src/main/java/net/taler/merchantpos/ProcessPayment.kt
@@ -1,12 +1,28 @@
 package net.taler.merchantpos
 
 import android.content.Context
+import android.graphics.Bitmap
+import android.graphics.Color
 import android.net.Uri
 import android.os.Bundle
 import androidx.fragment.app.Fragment
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import com.google.zxing.BarcodeFormat
+import com.google.zxing.common.BitMatrix
+import com.google.zxing.qrcode.QRCodeWriter
+import android.opengl.ETC1.getWidth
+import android.opengl.ETC1.getHeight
+import android.widget.Button
+import android.widget.ImageView
+import android.widget.TextView
+import androidx.activity.OnBackPressedCallback
+import androidx.activity.addCallback
+import androidx.lifecycle.ViewModelProviders
+import androidx.navigation.findNavController
+import androidx.navigation.fragment.findNavController
+import com.google.android.material.snackbar.Snackbar
 
 
 // TODO: Rename parameter arguments, choose names that match
@@ -29,12 +45,19 @@ class ProcessPayment : Fragment() {
     private var param2: String? = null
     private var listener: OnFragmentInteractionListener? = null
 
+    private lateinit var model: PosTerminalViewModel
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         arguments?.let {
             param1 = it.getString(ARG_PARAM1)
             param2 = it.getString(ARG_PARAM2)
         }
+
+        model = activity?.run {
+            ViewModelProviders.of(this)[PosTerminalViewModel::class.java]
+        } ?: throw Exception("Invalid Activity")
+
     }
 
     override fun onCreateView(
@@ -42,12 +65,41 @@ class ProcessPayment : Fragment() {
         savedInstanceState: Bundle?
     ): View? {
         // Inflate the layout for this fragment
-        return inflater.inflate(R.layout.fragment_process_payment, container, false)
+        val view = inflater.inflate(R.layout.fragment_process_payment, container, false)
+        val img = view.findViewById<ImageView>(R.id.qrcode)
+        val myBitmap = makeQrCode(model.activeContractUri!!)
+        img.setImageBitmap(myBitmap)
+        val cancelPaymentButton = view.findViewById<Button>(R.id.button_cancel_payment)
+        cancelPaymentButton.setOnClickListener {
+            onPaymentCancel()
+        }
+        val textViewAmount = view.findViewById<TextView>(R.id.text_view_amount)
+        textViewAmount.text = model.activeAmountPretty()
+        val textViewOrderId = view.findViewById<TextView>(R.id.text_view_order_reference)
+        textViewOrderId.text = "Order Reference: " + model.activeOrderId
+        return view
     }
 
-    // TODO: Rename method, update argument and hook method into UI event
-    fun onButtonPressed(uri: Uri) {
-        listener?.onFragmentInteraction(uri)
+    private fun onPaymentCancel() {
+        val navController = findNavController()
+        navController.popBackStack()
+
+        val mySnackbar = Snackbar.make(view!!, "Payment Canceled", Snackbar.LENGTH_SHORT)
+        mySnackbar.show()
+    }
+
+    fun makeQrCode(text: String): Bitmap {
+        val qrCodeWriter: QRCodeWriter = QRCodeWriter()
+        val bitMatrix: BitMatrix = qrCodeWriter.encode(text, BarcodeFormat.QR_CODE, 256, 256)
+        val height = bitMatrix.height
+        val width = bitMatrix.width
+        val bmp = Bitmap.createBitmap(width, height, Bitmap.Config.RGB_565)
+        for (x in 0 until width) {
+            for (y in 0 until height) {
+                bmp.setPixel(x, y, if (bitMatrix.get(x, y)) Color.BLACK else Color.WHITE)
+            }
+        }
+        return bmp;
     }
 
     override fun onAttach(context: Context) {