feat: the languages menu now displays the name in the target language, related to #1170 and #1172

Author: AlmasB

fxgl-core/src/main/kotlin/com/almasb/fxgl/localization/Language.kt

@@ -9,7 +9,18 @@ package com.almasb.fxgl.localization
 /**
  * @author Almas Baimagambetov (almaslvl@gmail.com)
  */
-class Language(name: String) {
+class Language
+@JvmOverloads constructor(
+
+        /**
+         * In English.
+         */
+        name: String,
+
+        /**
+         * In the target language.
+         */
+        val nativeName: String = name) {
 
     val name = name.uppercase()
 
@@ -30,12 +41,12 @@ class Language(name: String) {
         @JvmField val ESTONIAN = Language("ESTONIAN")
         @JvmField val FILIPINO = Language("FILIPINO")
         @JvmField val FINNISH = Language("FINNISH")
-        @JvmField val FRENCH = Language("FRENCH")
-        @JvmField val GERMAN = Language("GERMAN")
+        @JvmField val FRENCH = Language("FRENCH", "Français")
+        @JvmField val GERMAN = Language("GERMAN", "Deutsch")
         @JvmField val GREEK = Language("GREEK")
         @JvmField val HEBREW = Language("HEBREW")
         @JvmField val HINDI = Language("HINDI")
-        @JvmField val HUNGARIAN = Language("HUNGARIAN")
+        @JvmField val HUNGARIAN = Language("HUNGARIAN", "Magyar")
         @JvmField val INDONESIAN = Language("INDONESIAN")
         @JvmField val ITALIAN = Language("ITALIAN")
         @JvmField val JAPANESE = Language("JAPANESE")
@@ -44,7 +55,7 @@ class Language(name: String) {
         @JvmField val NORWEGIAN = Language("NORWEGIAN")
         @JvmField val PORTUGUESE = Language("PORTUGUESE")
         @JvmField val ROMANIAN = Language("ROMANIAN")
-        @JvmField val RUSSIAN = Language("RUSSIAN")
+        @JvmField val RUSSIAN = Language("RUSSIAN", "Русский")
         @JvmField val SLOVAK = Language("SLOVAK")
         @JvmField val SPANISH = Language("SPANISH")
         @JvmField val SWEDISH = Language("SWEDISH")

fxgl/src/main/kotlin/com/almasb/fxgl/app/scene/FXGLDefaultMenu.kt

@@ -21,6 +21,7 @@ import com.almasb.fxgl.input.InputModifier
 import com.almasb.fxgl.input.Trigger
 import com.almasb.fxgl.input.UserAction
 import com.almasb.fxgl.input.view.TriggerView
+import com.almasb.fxgl.localization.Language
 import com.almasb.fxgl.logging.Logger
 import com.almasb.fxgl.particle.ParticleEmitters
 import com.almasb.fxgl.particle.ParticleSystem
@@ -46,6 +47,7 @@ import javafx.scene.paint.*
 import javafx.scene.shape.Polygon
 import javafx.scene.shape.Rectangle
 import javafx.util.Duration
+import javafx.util.StringConverter
 import java.time.format.DateTimeFormatter
 import java.util.*
 import java.util.function.Consumer
@@ -661,6 +663,15 @@ open class FXGLDefaultMenu(type: MenuType) : FXGLMenu(type) {
 
         val languageBox = getUIFactoryService().newChoiceBox(FXCollections.observableArrayList(getSettings().supportedLanguages))
         languageBox.value = getSettings().language.value
+        languageBox.converter = object : StringConverter<Language>() {
+            override fun toString(`object`: Language): String {
+                return `object`.nativeName
+            }
+
+            override fun fromString(string: String): Language {
+                return getSettings().supportedLanguages.find { it.nativeName == string } ?: Language.NONE
+            }
+        }
 
         getSettings().language.bindBidirectional(languageBox.valueProperty())