Implemented saving TAN settings like TAN image size and flicker code frequency

ui/BankingAndroidApp/src/main/java/net/dankito/banking/ui/android/di/BankingModule.kt

@@ -79,8 +79,8 @@ class BankingModule(private val applicationContext: Context) {
     fun provideBankingPresenter(bankingClientCreator: IBankingClientCreator, bankFinder: IBankFinder,
                                 @Named(DatabaseFolderKey) databaseFolder: File, @Named(DataFolderKey) dataFolder: File,
                                 persister: IBankingPersistence, bankIconFinder: IBankIconFinder,
-                                router: IRouter, threadPool: IThreadPool) : BankingPresenter {
+                                router: IRouter, serializer: ISerializer, threadPool: IThreadPool) : BankingPresenter {
-        return BankingPresenter(bankingClientCreator, bankFinder, databaseFolder, dataFolder, persister, bankIconFinder, router, threadPool)
+        return BankingPresenter(bankingClientCreator, bankFinder, databaseFolder, dataFolder, persister, bankIconFinder, router, serializer, threadPool)
     }
 
     @Provides

ui/BankingAndroidApp/src/main/java/net/dankito/banking/ui/android/dialogs/EnterTanDialog.kt

@@ -1,7 +1,6 @@
 package net.dankito.banking.ui.android.dialogs
 
 import android.content.Context
-import android.graphics.BitmapFactory
 import android.os.Bundle
 import android.os.Handler
 import android.text.InputType
@@ -13,8 +12,9 @@ import android.widget.Spinner
 import androidx.appcompat.app.AlertDialog
 import androidx.appcompat.app.AppCompatActivity
 import androidx.fragment.app.DialogFragment
+import kotlinx.android.synthetic.main.dialog_enter_tan.*
 import kotlinx.android.synthetic.main.dialog_enter_tan.view.*
-import kotlinx.android.synthetic.main.view_tan_image.view.*
+import kotlinx.android.synthetic.main.dialog_enter_tan.view.flickerCodeView
 import net.dankito.banking.ui.android.R
 import net.dankito.banking.ui.android.di.BankingComponent
 import net.dankito.banking.ui.android.adapter.TanMediumAdapter
@@ -30,6 +30,8 @@ import javax.inject.Inject
 open class EnterTanDialog : DialogFragment() {
 
     companion object {
+        val QrCodeTanProcedures = listOf(TanProcedureType.ChipTanQrCode, TanProcedureType.QrCode)
+
         val OpticalTanProcedures = listOf(TanProcedureType.ChipTanFlickercode, TanProcedureType.ChipTanQrCode,
             TanProcedureType.ChipTanPhotoTanMatrixCode, TanProcedureType.photoTan, TanProcedureType.QrCode)
 
@@ -146,7 +148,7 @@ open class EnterTanDialog : DialogFragment() {
 
                 val flickerCode = (tanChallenge as FlickerCodeTanChallenge).flickerCode
                 if (flickerCode.decodingSuccessful) {
-                    flickerCodeView.setCode(flickerCode)
+                    flickerCodeView.setCode(flickerCode, presenter.appSettings.flickerCodeSettings)
                 }
                 else {
                     showDecodingTanChallengeFailedErrorDelayed(flickerCode.decodingError)
@@ -157,15 +159,14 @@ open class EnterTanDialog : DialogFragment() {
 
                 val decodedImage = (tanChallenge as ImageTanChallenge).image
                 if (decodedImage.decodingSuccessful) {
-                    val bitmap = BitmapFactory.decodeByteArray(decodedImage.imageBytes, 0, decodedImage.imageBytes.size)
+                    rootView.tanImageView.setImage(tanChallenge as ImageTanChallenge, if (isQrTan(tanChallenge)) presenter.appSettings.qrCodeSettings else presenter.appSettings.photoTanSettings)
-                    rootView.imgTanImageView.setImageBitmap(bitmap)
                 }
                 else {
                     showDecodingTanChallengeFailedErrorDelayed(decodedImage.decodingError)
                 }
             }
 
-            rootView.edtxtEnteredTan.inputType = InputType.TYPE_CLASS_NUMBER
+            rootView.edtxtEnteredTan.inputType = InputType.TYPE_CLASS_NUMBER // TODO: is this always true that TAN is a number?
 
             rootView.edtxtEnteredTan.setOnKeyListener { _, keyCode, _ ->
                 if (keyCode == KeyEvent.KEYCODE_ENTER) {
@@ -230,7 +231,33 @@ open class EnterTanDialog : DialogFragment() {
 
         tanEnteredCallback(result)
 
+        checkIfAppSettingsChanged()
+
         dismiss()
     }
 
+
+    protected open fun checkIfAppSettingsChanged() {
+        if (flickerCodeView.didTanProcedureSettingsChange) {
+            presenter.appSettings.flickerCodeSettings = flickerCodeView.tanProcedureSettings
+
+            presenter.appSettingsChanged()
+        }
+
+        if (tanImageView.didTanProcedureSettingsChange) {
+            if (isQrTan(tanChallenge)) {
+                presenter.appSettings.qrCodeSettings = tanImageView.tanProcedureSettings
+            }
+            else {
+                presenter.appSettings.photoTanSettings = tanImageView.tanProcedureSettings
+            }
+
+            presenter.appSettingsChanged()
+        }
+    }
+
+    protected open fun isQrTan(tanChallenge: TanChallenge): Boolean {
+        return QrCodeTanProcedures.contains(tanChallenge.tanProcedure.type)
+    }
+
 }

ui/BankingAndroidApp/src/main/java/net/dankito/banking/ui/android/views/ChipTanFlickerCodeView.kt

@@ -12,21 +12,24 @@ import net.dankito.banking.ui.android.R
 import net.dankito.banking.ui.model.tan.FlickerCode
 import net.dankito.banking.ui.util.FlickerCodeAnimator
 import net.dankito.banking.fints.tan.Bit
+import net.dankito.banking.ui.model.settings.ITanView
+import net.dankito.banking.ui.model.settings.TanProcedureSettings
 import net.dankito.utils.android.extensions.asActivity
 
 
 open class ChipTanFlickerCodeView @JvmOverloads constructor(
     context: Context, attrs: AttributeSet? = null, defStyleAttr: Int = 0
-) : LinearLayout(context, attrs, defStyleAttr) {
+) : LinearLayout(context, attrs, defStyleAttr), ITanView {
 
     companion object {
         const val FrequencyStepSize = 2
         const val MinFrequency = 2
         const val MaxFrequency = 40
+        const val DefaultFrequency = 30
 
         const val StripesHeightStepSize = 7
         const val StripesWidthStepSize = 2
-        const val StripesRightMarginStepSize = 1
+        const val SpaceBetweenStripesStepSize = 1
     }
 
 
@@ -48,13 +51,20 @@ open class ChipTanFlickerCodeView @JvmOverloads constructor(
 
     protected var stripesHeight = 360
     protected var stripesWidth = 120
-    protected var stripesMarginRight = 30.0 // set back to 30
+    protected var spaceBetweenStripes = 30
 
-    protected var currentFrequency = 30
+    protected var currentFrequency = DefaultFrequency
 
     protected var isFlickerCodePaused = false
 
 
+    override var didTanProcedureSettingsChange: Boolean = false
+        protected set
+
+    override var tanProcedureSettings: TanProcedureSettings? = null
+        protected set
+
+
     init {
         setupUi(context)
     }
@@ -82,12 +92,17 @@ open class ChipTanFlickerCodeView @JvmOverloads constructor(
 
         stripesHeight = stripe1.layoutParams.height
         stripesWidth = stripe1.layoutParams.width
-        (stripe1.layoutParams as? MarginLayoutParams)?.let { stripesMarginRight = it.rightMargin.toDouble() }
+        (stripe1.layoutParams as? MarginLayoutParams)?.let { spaceBetweenStripes = it.rightMargin }
 
         tanGeneratorLeftMarker = rootView.findViewById(R.id.tanGeneratorLeftMarker)
         tanGeneratorRightMarker = rootView.findViewById(R.id.tanGeneratorRightMarker)
 
         setMarkerPositionAfterStripesLayoutSet()
+
+        tanProcedureSettings?.let {
+            setSize(it.width, it.height, it.space)
+            setFrequency(it.frequency)
+        }
     }
 
 
@@ -100,22 +115,30 @@ open class ChipTanFlickerCodeView @JvmOverloads constructor(
 
 
     open fun decreaseSize() {
-        stripesHeight -= StripesHeightStepSize
+        setSize(
-        stripesWidth -= StripesWidthStepSize
+            stripesWidth - StripesWidthStepSize,
-        stripesMarginRight -= StripesRightMarginStepSize
+            stripesHeight - StripesHeightStepSize,
-
+            spaceBetweenStripes - SpaceBetweenStripesStepSize
-        setWidth(context)
+        )
     }
 
     open fun increaseSize() {
-        stripesHeight += StripesHeightStepSize
+        setSize(
-        stripesWidth += StripesWidthStepSize
+            stripesWidth + StripesWidthStepSize,
-        stripesMarginRight += StripesRightMarginStepSize
+            stripesHeight + StripesHeightStepSize,
-
+            spaceBetweenStripes + SpaceBetweenStripesStepSize
-        setWidth(context)
+        )
     }
 
-    protected open fun setWidth(context: Context) {
+    open fun setSize(width: Int, height: Int, spaceBetweenStripes: Int) {
+        this.stripesWidth = width
+        this.stripesHeight = height
+        this.spaceBetweenStripes = spaceBetweenStripes
+
+        applySize()
+    }
+
+    protected open fun applySize() {
         allStripes.forEach { stripe ->
             val params = stripe.layoutParams
             params.height = stripesHeight
@@ -123,7 +146,7 @@ open class ChipTanFlickerCodeView @JvmOverloads constructor(
 
             (params as? MarginLayoutParams)?.let { marginParams ->
                 if (marginParams.rightMargin > 0) { // don't set a margin right on fifth stripe
-                    marginParams.rightMargin = stripesMarginRight.toInt()
+                    marginParams.rightMargin = spaceBetweenStripes
                 }
             }
 
@@ -133,6 +156,8 @@ open class ChipTanFlickerCodeView @JvmOverloads constructor(
         requestLayout()
 
         setMarkerPositionAfterStripesLayoutSet()
+
+        tanProcedureSettingsChanged()
     }
 
     protected open fun setMarkerPositionAfterStripesLayoutSet() {
@@ -148,22 +173,28 @@ open class ChipTanFlickerCodeView @JvmOverloads constructor(
 
     open fun decreaseFrequency() {
         if (currentFrequency - FrequencyStepSize >= MinFrequency) {
-            currentFrequency -= FrequencyStepSize
+            setFrequency(currentFrequency - FrequencyStepSize)
-
-            setFrequency(currentFrequency)
         }
     }
 
     open fun increaseFrequency() {
         if (currentFrequency + FrequencyStepSize <= MaxFrequency) {
-            currentFrequency += FrequencyStepSize
+            setFrequency(currentFrequency + FrequencyStepSize)
-
-            setFrequency(currentFrequency)
         }
     }
 
     open fun setFrequency(frequency: Int) {
+        currentFrequency = frequency
+
         animator.setFrequency(frequency)
+
+        tanProcedureSettingsChanged()
+    }
+
+    protected open fun tanProcedureSettingsChanged() {
+        tanProcedureSettings = TanProcedureSettings(stripesWidth, stripesHeight, spaceBetweenStripes, currentFrequency)
+
+        didTanProcedureSettingsChange = true // we don't check if settings really changed, it's not that important
     }
 
 
@@ -181,10 +212,19 @@ open class ChipTanFlickerCodeView @JvmOverloads constructor(
     }
 
 
-    open fun setCode(flickerCode: FlickerCode) {
+    open fun setCode(flickerCode: FlickerCode, tanProcedureSettings: TanProcedureSettings?) {
         animator.stop()
 
-        setFrequency(currentFrequency)
+        tanProcedureSettings?.let {
+            setSize(it.width, it.height, it.space)
+            setFrequency(it.frequency)
+        }
+        ?: run {
+            setFrequency(DefaultFrequency)
+        }
+
+        this.tanProcedureSettings = tanProcedureSettings
+        this.didTanProcedureSettingsChange = false
 
         animator.animateFlickerCode(flickerCode) { step ->
             context.asActivity()?.runOnUiThread {

ui/BankingAndroidApp/src/main/java/net/dankito/banking/ui/android/views/TanImageView.kt

@@ -1,6 +1,7 @@
 package net.dankito.banking.ui.android.views
 
 import android.content.Context
+import android.graphics.BitmapFactory
 import android.util.AttributeSet
 import android.view.LayoutInflater
 import android.widget.ImageView
@@ -8,11 +9,14 @@ import android.widget.LinearLayout
 import kotlinx.android.synthetic.main.view_tan_image.view.*
 import kotlinx.android.synthetic.main.view_tan_image_size_controls.view.*
 import net.dankito.banking.ui.android.R
+import net.dankito.banking.ui.model.settings.ITanView
+import net.dankito.banking.ui.model.settings.TanProcedureSettings
+import net.dankito.banking.ui.model.tan.ImageTanChallenge
 
 
 open class TanImageView @JvmOverloads constructor(
     context: Context, attrs: AttributeSet? = null, defStyleAttr: Int = 0
-) : LinearLayout(context, attrs, defStyleAttr) {
+) : LinearLayout(context, attrs, defStyleAttr), ITanView {
 
     companion object {
         const val ChangeSizeStepSizeDp = 10f
@@ -26,6 +30,13 @@ open class TanImageView @JvmOverloads constructor(
     protected lateinit var imgTanImageView: ImageView
 
 
+    override var didTanProcedureSettingsChange: Boolean = false
+        protected set
+
+    override var tanProcedureSettings: TanProcedureSettings? = null
+        protected set
+
+
     init {
         MinHeight = convertDpToPx(context, 150f).toInt()
         MaxHeight = convertDpToPx(context, 500f).toInt()
@@ -44,6 +55,17 @@ open class TanImageView @JvmOverloads constructor(
     }
 
 
+    open fun setImage(challenge: ImageTanChallenge, tanProcedureSettings: TanProcedureSettings?) {
+        val decodedImage = challenge.image
+
+        val bitmap = BitmapFactory.decodeByteArray(decodedImage.imageBytes, 0, decodedImage.imageBytes.size)
+        rootView.imgTanImageView.setImageBitmap(bitmap)
+
+        tanProcedureSettings?.let {
+            setWidthAndHeight(it.width)
+        }
+    }
+
     open fun decreaseSize() {
         changeSizeBy(ChangeSizeStepSizeDp * -1)
     }
@@ -56,16 +78,30 @@ open class TanImageView @JvmOverloads constructor(
         val params = imgTanImageView.layoutParams
         val newWidthAndHeight = params.height + convertDpToPx(context, changeSizeBy).toInt()
 
+        setWidthAndHeight(newWidthAndHeight)
+    }
+
+    protected open fun setWidthAndHeight(newWidthAndHeight: Int) {
         if (newWidthAndHeight in MinHeight..MaxHeight) {
+            val params = imgTanImageView.layoutParams
+
             params.height = newWidthAndHeight
             params.width = newWidthAndHeight
 
             imgTanImageView.layoutParams = params // TODO: needed?
 
             requestLayout()
+
+            tanProcedureSettingsChanged(newWidthAndHeight)
         }
     }
 
+    protected open fun tanProcedureSettingsChanged(newWidthAndHeight: Int) {
+        tanProcedureSettings = TanProcedureSettings(newWidthAndHeight, newWidthAndHeight)
+
+        didTanProcedureSettingsChange = true // we don't check if settings really changed, it's not that important
+    }
+
     /**
      * This method converts dp unit to equivalent pixels, depending on device density.
      *

ui/BankingJavaFxControls/src/main/kotlin/net/dankito/banking/ui/javafx/dialogs/tan/EnterTanDialog.kt

@@ -11,6 +11,7 @@ import net.dankito.banking.ui.model.Account
 import net.dankito.banking.ui.model.responses.BankingClientResponse
 import net.dankito.banking.ui.model.tan.*
 import net.dankito.banking.ui.presenter.BankingPresenter
+import net.dankito.utils.extensions.htmlToPlainText
 import net.dankito.utils.javafx.ui.dialogs.Window
 import tornadofx.*
 
@@ -23,6 +24,8 @@ open class EnterTanDialog(
 ) : Window() {
 
     companion object {
+        val QrCodeTanProcedures = listOf(TanProcedureType.ChipTanQrCode, TanProcedureType.QrCode)
+
         private val ButtonHeight = 40.0
         private val ButtonWidth = 150.0
     }
@@ -30,6 +33,10 @@ open class EnterTanDialog(
 
     protected val dialogService = JavaFxDialogService()
 
+    protected var flickerCodeView: ChipTanFlickerCodeView? = null
+
+    protected var tanImageView: TanImageView? = null
+
 
     protected val tanProceduresWithoutUnsupported = account.supportedTanProcedures.filterNot { it.type == TanProcedureType.ChipTanUsb } // USB tan generators are not supported
 
@@ -93,7 +100,9 @@ open class EnterTanDialog(
                         marginBottom = 12.0
                     }
 
-                    add(ChipTanFlickerCodeView(flickerCode))
+                    add(ChipTanFlickerCodeView(flickerCode, presenter.appSettings.flickerCodeSettings).apply {
+                        flickerCodeView = this
+                    })
                 }
             }
             else {
@@ -104,7 +113,8 @@ open class EnterTanDialog(
         (challenge as? ImageTanChallenge)?.let { imageTanChallenge ->
             val decodedImage = imageTanChallenge.image
             if (decodedImage.decodingSuccessful) {
-                add(TanImageView(decodedImage).apply {
+                add(TanImageView(decodedImage, if (isQrTan(challenge)) presenter.appSettings.qrCodeSettings else presenter.appSettings.photoTanSettings).apply {
+                    tanImageView = this
 
                     vboxConstraints {
                         marginLeftRight(30.0)
@@ -216,6 +226,8 @@ open class EnterTanDialog(
         else {
             tanEnteredCallback(EnterTanResult.userEnteredTan(enteredTan.value))
 
+            checkIfAppSettingsChanged()
+
             close()
         }
     }
@@ -226,4 +238,28 @@ open class EnterTanDialog(
         close()
     }
 
+
+    protected open fun checkIfAppSettingsChanged() {
+        if (flickerCodeView?.didTanProcedureSettingsChange == true) {
+            presenter.appSettings.flickerCodeSettings = flickerCodeView?.tanProcedureSettings
+
+            presenter.appSettingsChanged()
+        }
+
+        if (tanImageView?.didTanProcedureSettingsChange == true) {
+            if (isQrTan(challenge)) {
+                presenter.appSettings.qrCodeSettings = tanImageView?.tanProcedureSettings
+            }
+            else {
+                presenter.appSettings.photoTanSettings = tanImageView?.tanProcedureSettings
+            }
+
+            presenter.appSettingsChanged()
+        }
+    }
+
+    protected open fun isQrTan(tanChallenge: TanChallenge): Boolean {
+        return QrCodeTanProcedures.contains(tanChallenge.tanProcedure.type)
+    }
+
 }

ui/BankingJavaFxControls/src/main/kotlin/net/dankito/banking/ui/javafx/dialogs/tan/controls/ChipTanFlickerCodeView.kt

@@ -9,13 +9,18 @@ import net.dankito.banking.ui.util.FlickerCodeAnimator
 import net.dankito.banking.fints.tan.Bit
 import net.dankito.banking.javafx.dialogs.tan.controls.ChipTanFlickerCodeStripeView
 import net.dankito.banking.javafx.dialogs.tan.controls.TanGeneratorMarkerView
+import net.dankito.banking.ui.model.settings.ITanView
+import net.dankito.banking.ui.model.settings.TanProcedureSettings
 import net.dankito.utils.javafx.ui.extensions.fixedHeight
 import net.dankito.utils.javafx.ui.extensions.fixedWidth
 import net.dankito.utils.javafx.ui.extensions.setBackgroundToColor
 import tornadofx.*
 
 
-open class ChipTanFlickerCodeView(protected val flickerCode: FlickerCode): View() {
+open class ChipTanFlickerCodeView(
+    protected val flickerCode: FlickerCode,
+    tanProcedureSettings: TanProcedureSettings?
+): View(), ITanView {
 
     companion object {
         const val ChangeSizeStripeHeightStep = 7.0
@@ -26,6 +31,7 @@ open class ChipTanFlickerCodeView(protected val flickerCode: FlickerCode): View(
         const val MaxFlickerCodeViewWidth = 1000.0 // what is a senseful value?
 
         const val ChangeFrequencyStep = 5
+        const val DefaultFrequency = 30
 
         const val IconWidth = 26.0
         const val IconHeight = 26.0
@@ -34,9 +40,9 @@ open class ChipTanFlickerCodeView(protected val flickerCode: FlickerCode): View(
 
     protected val flickerCodeLeftRightMargin = SimpleDoubleProperty(31.0)
 
-    protected val stripeHeight = SimpleDoubleProperty(127.0)
+    protected val stripesHeight = SimpleDoubleProperty(tanProcedureSettings?.height?.toDouble() ?: 127.0)
-    protected val stripeWidth = SimpleDoubleProperty(42.0)
+    protected val stripesWidth = SimpleDoubleProperty(tanProcedureSettings?.width?.toDouble() ?: 42.0)
-    protected val spaceBetweenStripes = SimpleDoubleProperty(10.0)
+    protected val spaceBetweenStripes = SimpleDoubleProperty(tanProcedureSettings?.space?.toDouble() ?: 10.0)
 
     protected val flickerCodeViewWidth = SimpleDoubleProperty()
 
@@ -52,15 +58,22 @@ open class ChipTanFlickerCodeView(protected val flickerCode: FlickerCode): View(
     protected val isMinFrequencyReached = SimpleBooleanProperty(false)
     protected val isMaxFrequencyReached = SimpleBooleanProperty(false)
 
-    protected var currentFrequency = 20
+    protected var currentFrequency = tanProcedureSettings?.frequency ?: DefaultFrequency
 
     protected val animator = FlickerCodeAnimator()
+
+
+    override var didTanProcedureSettingsChange: Boolean = false
+        protected set
+
+    override var tanProcedureSettings: TanProcedureSettings? = tanProcedureSettings
+        protected set
     
     
     init {
-        flickerCodeViewWidth.bind(stripeWidth.add(spaceBetweenStripes).multiply(4).add(stripeWidth).add(flickerCodeLeftRightMargin).add(flickerCodeLeftRightMargin))
+        flickerCodeViewWidth.bind(stripesWidth.add(spaceBetweenStripes).multiply(4).add(stripesWidth).add(flickerCodeLeftRightMargin).add(flickerCodeLeftRightMargin))
 
-        animator.setFrequency(currentFrequency)
+        setFrequency(currentFrequency)
     }
 
 
@@ -122,13 +135,13 @@ open class ChipTanFlickerCodeView(protected val flickerCode: FlickerCode): View(
                     add(TanGeneratorMarkerView().apply {
                         setLeftMarkerPosition(this)
 
-                        stripeWidth.addListener { _, _, _ -> setLeftMarkerPosition(this) }
+                        stripesWidth.addListener { _, _, _ -> setLeftMarkerPosition(this) }
                     })
 
                     add(TanGeneratorMarkerView().apply {
                         setRightMarkerPosition(this)
 
-                        stripeWidth.addListener { _, _, _ -> setRightMarkerPosition(this) }
+                        stripesWidth.addListener { _, _, _ -> setRightMarkerPosition(this) }
                     })
 
                     vboxConstraints {
@@ -139,11 +152,11 @@ open class ChipTanFlickerCodeView(protected val flickerCode: FlickerCode): View(
                 hbox {
                     minHeight = 150.0
 
-                    add(ChipTanFlickerCodeStripeView(stripe1, stripeWidth, stripeHeight, spaceBetweenStripes))
+                    add(ChipTanFlickerCodeStripeView(stripe1, stripesWidth, stripesHeight, spaceBetweenStripes))
-                    add(ChipTanFlickerCodeStripeView(stripe2, stripeWidth, stripeHeight, spaceBetweenStripes))
+                    add(ChipTanFlickerCodeStripeView(stripe2, stripesWidth, stripesHeight, spaceBetweenStripes))
-                    add(ChipTanFlickerCodeStripeView(stripe3, stripeWidth, stripeHeight, spaceBetweenStripes))
+                    add(ChipTanFlickerCodeStripeView(stripe3, stripesWidth, stripesHeight, spaceBetweenStripes))
-                    add(ChipTanFlickerCodeStripeView(stripe4, stripeWidth, stripeHeight, spaceBetweenStripes))
+                    add(ChipTanFlickerCodeStripeView(stripe4, stripesWidth, stripesHeight, spaceBetweenStripes))
-                    add(ChipTanFlickerCodeStripeView(stripe5, stripeWidth, stripeHeight, SimpleDoubleProperty(0.0)))
+                    add(ChipTanFlickerCodeStripeView(stripe5, stripesWidth, stripesHeight, SimpleDoubleProperty(0.0)))
                 }
 
                 vboxConstraints {
@@ -153,6 +166,10 @@ open class ChipTanFlickerCodeView(protected val flickerCode: FlickerCode): View(
             }
         }
 
+
+        updateMinAndMaxSizeReached()
+        updateMinAndMaxFrequencyReached()
+
         animator.animateFlickerCode(flickerCode) { step ->
             runLater {
                 paintFlickerCode(step)
@@ -171,22 +188,23 @@ open class ChipTanFlickerCodeView(protected val flickerCode: FlickerCode): View(
 
     protected open fun setLeftMarkerPosition(component: UIComponent) {
         component.root.anchorpaneConstraints {
-            leftAnchor = (stripeWidth.value / 2)
+            leftAnchor = (stripesWidth.value / 2)
         }
     }
 
     protected open fun setRightMarkerPosition(component: UIComponent) {
         component.root.anchorpaneConstraints {
-            rightAnchor = (stripeWidth.value / 2)
+            rightAnchor = (stripesWidth.value / 2)
         }
     }
 
 
     protected open fun increaseSize() {
         if (isMaxSizeReached.value == false) {
-            stripeHeight.value = stripeHeight.value + ChangeSizeStripeHeightStep
+            setSize(stripesWidth.value + ChangeSizeStripeWidthStep, stripesHeight.value + ChangeSizeStripeHeightStep,
-            stripeWidth.value = stripeWidth.value + ChangeSizeStripeWidthStep
+                spaceBetweenStripes.value + ChangeSizeSpaceBetweenStripesStep)
-            spaceBetweenStripes.value = spaceBetweenStripes.value + ChangeSizeSpaceBetweenStripesStep
+
+            tanProcedureSettingsChanged()
         }
 
         updateMinAndMaxSizeReached()
@@ -194,16 +212,27 @@ open class ChipTanFlickerCodeView(protected val flickerCode: FlickerCode): View(
 
     protected open fun decreaseSize() {
         if (isMinSizeReached.value == false) {
-            stripeHeight.value = stripeHeight.value - ChangeSizeStripeHeightStep
+            setSize(stripesWidth.value - ChangeSizeStripeWidthStep, stripesHeight.value - ChangeSizeStripeHeightStep,
-            stripeWidth.value = stripeWidth.value - ChangeSizeStripeWidthStep
+                spaceBetweenStripes.value - ChangeSizeSpaceBetweenStripesStep)
-            spaceBetweenStripes.value = spaceBetweenStripes.value - ChangeSizeSpaceBetweenStripesStep
+
+            tanProcedureSettingsChanged()
         }
 
         updateMinAndMaxSizeReached()
     }
 
+    open fun setSize(width: Double, height: Double, spaceBetweenStripes: Double) {
+        this.stripesWidth.value = width
+        this.stripesHeight.value = height
+        this.spaceBetweenStripes.value = spaceBetweenStripes
+
+        tanProcedureSettingsChanged()
+
+        updateMinAndMaxSizeReached()
+    }
+
     protected open fun updateMinAndMaxSizeReached() {
-        val flickerCodeWidth = stripeWidth.value * 5 + spaceBetweenStripes.value * 4
+        val flickerCodeWidth = stripesWidth.value * 5 + spaceBetweenStripes.value * 4
 
         isMinSizeReached.value = flickerCodeWidth < MinFlickerCodeViewWidth
         isMaxSizeReached.value = flickerCodeWidth > MaxFlickerCodeViewWidth
@@ -213,8 +242,7 @@ open class ChipTanFlickerCodeView(protected val flickerCode: FlickerCode): View(
         if (isMaxFrequencyReached.value == false
                 && (currentFrequency + ChangeFrequencyStep) <= FlickerCodeAnimator.MaxFrequency) {
 
-            currentFrequency += ChangeFrequencyStep
+            setFrequency(currentFrequency + ChangeFrequencyStep)
-            animator.setFrequency(currentFrequency)
         }
 
         updateMinAndMaxFrequencyReached()
@@ -224,16 +252,33 @@ open class ChipTanFlickerCodeView(protected val flickerCode: FlickerCode): View(
         if (isMinFrequencyReached.value == false
                 && (currentFrequency - ChangeFrequencyStep) >= FlickerCodeAnimator.MinFrequency) {
 
-            currentFrequency -= ChangeFrequencyStep
+            setFrequency(currentFrequency - ChangeFrequencyStep)
-            animator.setFrequency(currentFrequency)
         }
 
         updateMinAndMaxFrequencyReached()
     }
 
+    protected open fun setFrequency(frequency: Int) {
+        currentFrequency = frequency
+
+        animator.setFrequency(currentFrequency)
+
+        updateMinAndMaxFrequencyReached()
+
+        tanProcedureSettingsChanged()
+    }
+
     protected open fun updateMinAndMaxFrequencyReached() {
         isMaxFrequencyReached.value = (currentFrequency + ChangeFrequencyStep) > FlickerCodeAnimator.MaxFrequency
         isMinFrequencyReached.value = (currentFrequency - ChangeFrequencyStep) < FlickerCodeAnimator.MinFrequency
     }
 
+
+    protected open fun tanProcedureSettingsChanged() {
+        tanProcedureSettings = TanProcedureSettings(stripesWidth.value.toInt(), stripesHeight.value.toInt(),
+            spaceBetweenStripes.value.toInt(), currentFrequency)
+
+        didTanProcedureSettingsChange = true // we don't check if settings really changed, it's not that important
+    }
+
 }

ui/BankingJavaFxControls/src/main/kotlin/net/dankito/banking/ui/javafx/dialogs/tan/controls/TanImageView.kt

@@ -4,13 +4,18 @@ import javafx.beans.property.SimpleBooleanProperty
 import javafx.geometry.Pos
 import javafx.scene.image.Image
 import javafx.scene.image.ImageView
+import net.dankito.banking.ui.model.settings.ITanView
+import net.dankito.banking.ui.model.settings.TanProcedureSettings
 import net.dankito.banking.ui.model.tan.TanImage
 import net.dankito.utils.javafx.ui.extensions.updateWindowSize
 import tornadofx.*
 import java.io.ByteArrayInputStream
 
 
-open class TanImageView(protected val tanImage: TanImage) : View() {
+open class TanImageView(
+    protected val tanImage: TanImage,
+    tanProcedureSettings: TanProcedureSettings?
+) : View(), ITanView {
 
     companion object {
         private const val ChangeSizeStepSize = 10.0
@@ -29,6 +34,13 @@ open class TanImageView(protected val tanImage: TanImage) : View() {
     protected var tanImageView: ImageView by singleAssign()
 
 
+    override var didTanProcedureSettingsChange: Boolean = false
+        protected set
+
+    override var tanProcedureSettings: TanProcedureSettings? = tanProcedureSettings
+        protected set
+
+
     override val root = vbox {
         add(TanImageSizeView(IconHeight, IconWidth, isMinSizeReached, isMaxSizeReached, { decreaseSize() }, { increaseSize() } ))
 
@@ -45,6 +57,12 @@ open class TanImageView(protected val tanImage: TanImage) : View() {
                 marginBottom = 4.0
             }
         }
+
+        tanProcedureSettings?.let {
+            runLater {
+                setWidthAndHeight(it.width.toDouble())
+            }
+        }
     }
 
 
@@ -59,14 +77,26 @@ open class TanImageView(protected val tanImage: TanImage) : View() {
     protected open fun changeSizeBy(changeSizeBy: Double) {
         val newWidthAndHeight = tanImageView.fitHeight + changeSizeBy
 
+        setWidthAndHeight(newWidthAndHeight)
+    }
+
+    protected open fun setWidthAndHeight(newWidthAndHeight: Double) {
         if (newWidthAndHeight in MinHeight..MaxHeight) {
             tanImageView.fitHeight = newWidthAndHeight
 
             updateWindowSize()
+
+            tanProcedureSettingsChanged(newWidthAndHeight.toInt())
         }
 
         isMinSizeReached.value = tanImageView.fitHeight <= MinHeight
         isMaxSizeReached.value = tanImageView.fitHeight >= MaxHeight
     }
 
+    protected open fun tanProcedureSettingsChanged(newWidthAndHeight: Int) {
+        tanProcedureSettings = TanProcedureSettings(newWidthAndHeight, newWidthAndHeight)
+
+        didTanProcedureSettingsChange = true // we don't check if settings really changed, it's not that important
+    }
+
 }

ui/BankingUiCommon/src/main/java/net/dankito/banking/ui/model/settings/AppSettings.kt

@@ -0,0 +1,12 @@
+package net.dankito.banking.ui.model.settings
+
+
+open class AppSettings(
+    var flickerCodeSettings: TanProcedureSettings? = null,
+    var qrCodeSettings: TanProcedureSettings? = null,
+    var photoTanSettings: TanProcedureSettings? = null
+) {
+
+    internal constructor() : this(null, null, null) // for object deserializers
+
+}

ui/BankingUiCommon/src/main/java/net/dankito/banking/ui/model/settings/ITanView.kt

@@ -0,0 +1,10 @@
+package net.dankito.banking.ui.model.settings
+
+
+interface ITanView {
+
+    val didTanProcedureSettingsChange: Boolean
+
+    val tanProcedureSettings: TanProcedureSettings?
+
+}

ui/BankingUiCommon/src/main/java/net/dankito/banking/ui/model/settings/TanProcedureSettings.kt

@@ -0,0 +1,18 @@
+package net.dankito.banking.ui.model.settings
+
+
+open class TanProcedureSettings(
+    var width: Int,
+    var height: Int,
+    var space: Int = -1, // only needed for flicker code view
+    var frequency: Int = -1 // only needed for flicker code view
+) {
+
+    internal constructor() : this(0, 0) // for object deserializers
+
+
+    override fun toString(): String {
+        return "Size $width x $height, frequency $frequency"
+    }
+
+}

ui/BankingUiCommon/src/main/java/net/dankito/banking/ui/presenter/BankingPresenter.kt

@@ -17,10 +17,13 @@ import net.dankito.banking.ui.model.tan.TanGeneratorTanMedium
 import net.dankito.banking.util.IBankIconFinder
 import net.dankito.banking.fints.banks.IBankFinder
 import net.dankito.banking.fints.model.BankInfo
+import net.dankito.banking.ui.model.settings.AppSettings
 import net.dankito.utils.IThreadPool
 import net.dankito.utils.ThreadPool
 import net.dankito.utils.extensions.containsExactly
 import net.dankito.utils.extensions.ofMaxLength
+import net.dankito.utils.serialization.ISerializer
+import net.dankito.utils.serialization.JacksonJsonSerializer
 import org.slf4j.LoggerFactory
 import java.io.File
 import java.io.FileOutputStream
@@ -39,6 +42,7 @@ open class BankingPresenter(
     protected val persister: IBankingPersistence,
     protected val bankIconFinder: IBankIconFinder,
     protected val router: IRouter,
+    protected val serializer: ISerializer = JacksonJsonSerializer(),
     protected val threadPool: IThreadPool = ThreadPool()
 ) {
 
@@ -93,6 +97,7 @@ open class BankingPresenter(
 
     init {
         threadPool.runAsync {
+            readAppSettings()
             readPersistedAccounts()
         }
 
@@ -543,6 +548,36 @@ open class BankingPresenter(
     }
 
 
+    var appSettings: AppSettings = AppSettings()
+        protected set
+
+    open fun appSettingsChanged() {
+        persistAppSettings()
+    }
+
+    protected open fun persistAppSettings() {
+        try {
+            serializer.serializeObject(appSettings, getAppSettingsFile())
+        } catch (e: Exception) {
+            log.error("Could not persist AppSettings to file ${getAppSettingsFile()}", e)
+        }
+    }
+
+    protected open fun readAppSettings() {
+        try {
+            serializer.deserializeObject(getAppSettingsFile(), AppSettings::class.java)?.let {
+                appSettings = it
+            }
+        } catch (e: Exception) {
+            log.error("Could not read AppSettings from file ${getAppSettingsFile()}", e)
+        }
+    }
+
+    protected open fun getAppSettingsFile(): File {
+        return File(dataFolder, "app_settings.json")
+    }
+
+
     open fun addAccountsChangedListener(listener: (List<Account>) -> Unit): Boolean {
         return accountsChangedListeners.add(listener)
     }