update the gradle version and the kotlin version

build.gradle

@@ -1,8 +1,5 @@
-group 'ninja.javafx'
-version '1.0-SNAPSHOT'
-
 buildscript {
-    ext.kotlin_version = '1.0.4'
+    ext.kotlin_version = '1.3.72'
 
     repositories {
         mavenCentral()
@@ -12,17 +9,27 @@ buildscript {
     }
 }
 
-apply plugin: 'kotlin'
-apply plugin: 'application'
-
-mainClassName = 'ninja.javafx.smartcsv.fx.converter.ConverterKt'
+plugins {
+    id "org.jetbrains.kotlin.jvm" version "$kotlin_version" 
+    id 'application'
+    id 'org.openjfx.javafxplugin' version '0.0.8'
+}
 
 repositories {
     mavenCentral()
     jcenter()
 }
 
+javafx {
+    modules = [ 'javafx.controls', 'javafx.fxml' ]
+}
+
 dependencies {
     compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
     compile 'com.beust:klaxon:0.24'
+    compile 'no.tornado:tornadofx:1.5.6'
 }
+
+group 'ninja.javafx'
+version '1.1-SNAPSHOT'
+mainClassName = 'ninja.javafx.smartcsv.fx.converter.ConverterFX'

gradle/wrapper/gradle-wrapper.properties

@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.13-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.4.1-all.zip

src/main/kotlin/ninja/javafx/smartcsv/fx/converter/Converter.kt

@@ -85,11 +85,9 @@ class Converter(val name: String) {
 
     }
 
-    @Suppress("UNCHECKED_CAST")
     fun constraint(column : JsonObject, key : String, value: Any?) {
         if (value == null) return
-        val constraints = column["constraints"] as JsonObject? ?: JsonObject(HashMap<String, Any>())
-        column["constraints"] = constraints
+        val constraints = column.getOrPut("constraints") { JsonObject(mutableMapOf()) } as JsonObject
         constraints[key] = value
     }
 

src/main/kotlin/ninja/javafx/smartcsv/fx/converter/ConverterFX.kt

@@ -0,0 +1,120 @@
+/*
+   The MIT License (MIT)
+   -----------------------------------------------------------------------------
+   Copyright (c) 2016 javafx.ninja <info@javafx.ninja>
+   Permission is hereby granted, free of charge, to any person obtaining a copy
+   of this software and associated documentation files (the "Software"), to deal
+   in the Software without restriction, including without limitation the rights
+   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+   copies of the Software, and to permit persons to whom the Software is
+   furnished to do so, subject to the following conditions:
+   The above copyright notice and this permission notice shall be included in
+   all copies or substantial portions of the Software.
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+   IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+   AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+   LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+   THE SOFTWARE.
+*/
+package ninja.javafx.smartcsv.fx.converter
+
+import javafx.geometry.Insets
+import javafx.scene.control.Label
+import javafx.scene.layout.GridPane
+import javafx.scene.layout.Priority
+import javafx.stage.FileChooser
+import tornadofx.*
+
+class ConverterFX : App() {
+    override val primaryView = FileInputView::class
+
+
+}
+
+class FileInput {
+    var name by property<String>()
+    fun nameProperty() = getProperty(FileInput::name)
+}
+
+class FileInputView : View("SmartCSV.fx Converter") {
+    override val root = GridPane()
+    private val fileinput = FileInput()
+    private val fileChooser = FileChooser()
+    private val state = Label()
+
+    val controller: FileInputController by inject()
+
+
+    init {
+        primaryStage.width = 600.0
+        primaryStage.height = 120.0
+
+        fileChooser.title = "Open old config file"
+        fileChooser.extensionFilters.addAll(FileChooser.ExtensionFilter("JSON Files", "*.json"))
+
+        with(root) {
+
+            padding = Insets(8.0, 8.0, 8.0, 8.0)
+
+            root.vgap = 8.0
+            root.hgap = 8.0
+
+            textfield() {
+                isEditable = false
+                isDisable = false
+                isMouseTransparent = true
+                isFocusTraversable = false
+                useMaxWidth = true
+                bind(fileinput.nameProperty())
+                gridpaneConstraints {
+                    columnRowIndex(0, 0)
+                    hGrow = Priority.ALWAYS
+                }
+            }
+
+            button("Select File") {
+                gridpaneConstraints {
+                    columnRowIndex(1, 0)
+                }
+                setOnAction {
+                    state.text = null
+                    val selectedFile = fileChooser.showOpenDialog(primaryStage)
+                    if (selectedFile != null) {
+                        fileinput.name = selectedFile.absolutePath
+                    }
+                }
+
+            }
+
+            this += state
+            state.gridpaneConstraints {
+                columnRowIndex(0, 1)
+            }
+
+
+            button("Convert") {
+                gridpaneConstraints {
+                    columnRowIndex(1, 1)
+                }
+                setOnAction {
+                    controller.convert(fileinput.name)
+                    state.text = "converted ${fileinput.name}"
+                    fileinput.name = null
+                }
+                disableProperty().bind(fileinput.nameProperty().isNull)
+            }
+
+
+        }
+    }
+}
+
+class FileInputController : Controller() {
+
+    fun convert(inputValue: String) {
+        Converter(inputValue).convert()
+        println("Converted $inputValue!")
+    }
+}