Allow backendType to be changed via config file

src/main/kotlin/org/bm00/DataAccessor/Config.kt

@@ -1,6 +1,7 @@
 package org.bm00.DataAccessor
 
 import dev.dirs.ProjectDirectories
+import jexer.TApplication
 import java.io.File
 import java.io.FileInputStream
 import java.io.FileOutputStream
@@ -8,6 +9,7 @@ import java.io.OutputStream
 import java.nio.file.Files
 import java.nio.file.Paths
 import java.util.*
+import kotlin.jvm.Throws
 
 val prop = Properties()
 
@@ -31,6 +33,7 @@ class Config {
             FileInputStream(confFile).use {
                 prop.load(it)
                 prop.setProperty("configVersion", "1")
+                prop.setProperty("backendType", "SWING")
             }
             val out: OutputStream = FileOutputStream(confFile)
             prop.store(out, "Org Secure Data Accessor - OSDA Config file")
@@ -39,4 +42,19 @@ class Config {
     //Convert values from the config file to in-code variables,
     // so we can use them later, also make them public because I said so.
     val configVersion: Int = (prop.getProperty("configVersion")).toInt()
+
+    // Possible answers: SWING, XTERM, ECMA48
+    val backendType =
+        if (prop.getProperty("backendType") == "SWING") {
+            TApplication.BackendType.SWING
+        }
+        else if (prop.getProperty("backendType") == "XTERM") {
+            TApplication.BackendType.XTERM
+        }
+        else if (prop.getProperty("backendType") == "ECMA48") {
+            TApplication.BackendType.ECMA48
+        }
+        else {
+            throw Exception("Improper Backend set! Please use `SWING, XTERM, ECMA48`!")
+        }
 }

src/main/kotlin/org/bm00/DataAccessor/main.kt

@@ -4,13 +4,15 @@ import jexer.TApplication
 import org.bm00.DataAccessor.windows.WelcomeWindow
 import java.util.*
 
-// This creates a Jexer application (and calls the "backend type" which is how its rendered)
-class Application : TApplication(BackendType.SWING) {
+val backendType = Config().backendType
+
+class Application : TApplication(backendType, 80, 40, 18) {
     init {
         WelcomeWindow(this)
     }
 }
 
+// This creates a Jexer application (and calls the "backend type" which is how its rendered)
 @Throws(Exception::class)
 fun main(args: Array<String>) {
     Runtime.getRuntime().exec("echo Hello-World")
@@ -18,3 +20,4 @@ fun main(args: Array<String>) {
     val app = Application()
     app.run()
 }
+