package com.example.wgapplink

import android.view.View
import com.journeyapps.barcodescanner.CaptureActivity
import com.journeyapps.barcodescanner.DecoratedBarcodeView

/**
 * The screen behind an app's "Scan QR code" button: zxing-android-embedded's capture activity with
 * two of its defaults taken off, both because they put work on the person holding the phone.
 *
 * - **It decodes only the framing rectangle**, which `CameraPreview.marginFraction` insets by 10%
 *   from every edge and `DecoderThread` crops each frame to before the decoder sees it. A code that
 *   fills the viewfinder keeps decoding -- measured, not assumed -- but it does so having spent its
 *   quiet zone and margin for error on the crop, and anything further out is simply not looked at.
 *   Decoding the whole preview costs nothing and means the framing is never the user's problem.
 * - **It decorates the preview** with a red laser line and the dots the detector scatters wherever
 *   it finds a candidate pattern. That is the library's house style; a plain preview is ours.
 *
 * Orientation is left to the sensor rather than pinned to landscape as the library's own manifest
 * entry pins it, so the phone can be held whichever way the code is in front of it.
 */
class EnrollmentScanActivity : CaptureActivity() {
    override fun initializeContent(): DecoratedBarcodeView {
        val view = super.initializeContent()
        view.barcodeView.marginFraction = 0.0
        view.viewFinder.visibility = View.GONE
        view.statusView.visibility = View.GONE
        return view
    }
}