some clean up

client/src/main/kotlin/org/hso/texturesyncclient/controller/NetworkController.kt

@@ -1,8 +0,0 @@
-package org.hso.texturesyncclient.controller
-
-class NetworkController {
-
-
-
-
-}

client/src/main/kotlin/org/hso/texturesyncclient/controller/net/Connection.kt

@@ -241,29 +241,31 @@ class Connection(val address: InetAddress, val port: Int = 10796) : Closeable {
 
         when (val pkg = Package.read(io.first)) {
             is JsonPackage -> {
-                if (pkg.content == JsonPrimitive(true)) {
-                    // everthing is fine!
-                    return
-                } else if (image != null) {
-                    // should be  { "get_texture_file": { texture_hash : <Hash> }}
-                    // we don't check, since there is no good way to handle it.
+                when {
+                    pkg.content == JsonPrimitive(true) -> // everthing is fine!
+                        return
+                    image != null -> {
+                        // should be  { "get_texture_file": { texture_hash : <Hash> }}
+                        // we don't check, since there is no good way to handle it.
 
-                    BinaryPackage(image).write(io.second)
-                    when (val ipkg = Package.read(io.first)) {
-                        is JsonPackage -> {
-                            if (ipkg.content != JsonPrimitive(true)) {
-                                // Protokoll Assertion failed
-                                throw ConnectionUnexpectedPacketException()
+                        BinaryPackage(image).write(io.second)
+                        when (val ipkg = Package.read(io.first)) {
+                            is JsonPackage -> {
+                                if (ipkg.content != JsonPrimitive(true)) {
+                                    // Protokoll Assertion failed
+                                    throw ConnectionUnexpectedPacketException()
+                                }
                             }
+                            is BinaryPackage -> throw ConnectionUnexpectedPacketException()
+                            is ErrorPackage -> throw ConnectionErrorException(ipkg)
+                            else -> throw RuntimeException("Unreachable")
                         }
-                        is BinaryPackage -> throw ConnectionUnexpectedPacketException()
-                        is ErrorPackage -> throw ConnectionErrorException(ipkg)
-                        else -> throw RuntimeException("Unreachable")
                     }
-                } else {
-                    ErrorPackage(404, "Texture not found!").write(io.second)
-                    close() // gets re-opened on next request.
-                    throw IllegalArgumentException("Image Argument was needed.")
+                    else -> {
+                        ErrorPackage(404, "Texture not found!").write(io.second)
+                        close() // gets re-opened on next request.
+                        throw IllegalArgumentException("Image Argument was needed.")
+                    }
                 }
             }
             is BinaryPackage -> throw ConnectionUnexpectedPacketException()

client/src/main/kotlin/org/hso/texturesyncclient/view/importView/ImportView.kt

@@ -3,7 +3,6 @@ package org.hso.texturesyncclient.view.importView
 import com.jfoenix.controls.JFXButton
 import com.jfoenix.controls.JFXChipView
 import com.jfoenix.controls.JFXTextField
-import javafx.collections.ListChangeListener
 import javafx.geometry.Pos
 import javafx.scene.layout.Background
 import javafx.geometry.Insets
@@ -93,7 +92,7 @@ class ImportView : View() {
         tfFilePath.textProperty().addListener{ _, _, _ -> ivc.validateImport() }
         tfName.textProperty().addListener{ _, _, _ -> ivc.validateImport() }
 
-        cvTags.chips.addListener { change: ListChangeListener.Change<out String>? ->
+        cvTags.chips.onChange {
             ivc.validateImport()
         }
 

client/src/main/kotlin/org/hso/texturesyncclient/view/importView/ImportViewController.kt

@@ -1,6 +1,5 @@
 package org.hso.texturesyncclient.view.importView
 
-import javafx.stage.FileChooser.ExtensionFilter
 import org.hso.texturesyncclient.controller.RootController
 import tornadofx.Controller
 import javafx.stage.FileChooser

client/src/main/kotlin/org/hso/texturesyncclient/view/mainView/MainViewController.kt

@@ -26,7 +26,6 @@ class MainViewController : Controller() {
     }
 
     fun addAllElements(elementList: ArrayList<GUIModel>) {
-        elementList.get(0).data
         folderView.children.addAll(elementList)
     }
 

client/src/main/kotlin/org/hso/texturesyncclient/view/startupView/StartupViewController.kt

@@ -2,8 +2,6 @@ package org.hso.texturesyncclient.view.startupView
 
 import org.hso.texturesyncclient.controller.RootController
 import org.hso.texturesyncclient.controller.SettingsController
-import org.hso.texturesyncclient.view.mainView.MainView
-import tornadofx.ConfigProperties
 import tornadofx.Controller
 
 
@@ -42,7 +40,7 @@ class StartupViewController : Controller() {
     /**
      * show spinner and block textfied + button and set label
      */
-    fun startConnectionUI() {
+    private fun startConnectionUI() {
         sv.labelStatus.text = "Verbinden ..."
         sv.tfServerIP.isEditable = false
         sv.btnConnect.isDisable = true
@@ -52,7 +50,7 @@ class StartupViewController : Controller() {
     /**
      * remove spinner and unblock textfied + button and set label
      */
-    fun endConnectionUI() {
+    private fun endConnectionUI() {
         sv.spinnerStatus.isVisible = false
         sv.labelStatus.text = "Verbindung zum Server einrichten"
         sv.tfServerIP.isEditable = true