created new window

hellofx/app/build/resources/main/client/style.css

@@ -2,6 +2,10 @@ GridPane{
     -fx-background-color: #282C34;
 }
 
+Label{
+    -fx-text-fill: white;
+}
+
 .main-btn{
     -fx-background-color: #ffffff;
     -fx-text-fill: white;

hellofx/app/src/main/java/client/MainController.java

@@ -1,13 +1,20 @@
 package client;
 
 import javafx.fxml.FXML;
+import javafx.fxml.FXMLLoader;
+import javafx.scene.Scene;
 import javafx.scene.control.Label;
 import javafx.scene.layout.GridPane;
 import javafx.scene.layout.VBox;
 import javafx.scene.paint.Color;
+import javafx.stage.Modality;
+import javafx.stage.Stage;
 import res.Event;
 import res.DataController;
 
+import java.io.IOException;
+import java.util.Objects;
+
 public class MainController {
     @FXML
     private GridPane calendarGrid;
@@ -30,6 +37,21 @@ public class MainController {
 
     @FXML
     protected void onAddBtnClick(){
+        try{
+            FXMLLoader fxmlLoader = new FXMLLoader(MainApplication.class.getResource("create-event.fxml"));
+            Scene scene = new Scene(fxmlLoader.load(), 600, 400);
+            scene.getStylesheets().add(Objects.requireNonNull(MainApplication.class.getResource("create-event.css")).toExternalForm());
+            Stage stage = new Stage();
+            stage.setTitle("Termin erstellen");
+            stage.setScene(scene);
+            stage.initModality(Modality.APPLICATION_MODAL);
+            stage.showAndWait();
+        }
+        catch (IOException e){
+            e.printStackTrace();
+        }
+
+
         DataController dataController = new DataController();
         Event[] eventList = dataController.getAllEvents();
 

hellofx/app/src/main/resources/client/create-event.css

@@ -0,0 +1,3 @@
+GridPane{
+    -fx-background-color: #3E415F;
+}

hellofx/app/src/main/resources/client/create-event.fxml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<?import java.lang.*?>
+<?import java.util.*?>
+<?import javafx.scene.*?>
+<?import javafx.scene.control.*?>
+<?import javafx.scene.layout.*?>
+
+<GridPane>
+    <Label>Terminerstellen</Label>
+</GridPane>