Merge pull request #33 from IDATT2003-Gruppe-53/32-view-manager

Added a class for changing views/stages

millions/pom.xml

@@ -46,6 +46,9 @@
         <groupId>org.openjfx</groupId>
         <artifactId>javafx-maven-plugin</artifactId>
         <version>0.0.8</version>
+          <configuration>
+              <mainClass>no.ntnu.gruppe53.App</mainClass>
+          </configuration>
       </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>

millions/src/main/java/no/ntnu/gruppe53/App.java

@@ -1,10 +1,25 @@
 package no.ntnu.gruppe53;
 
-/**
- * Hello world!
- */
-public class App {
+import javafx.application.Application;
+import javafx.stage.Stage;
+import no.ntnu.gruppe53.controller.ViewController;
+import no.ntnu.gruppe53.views.StartView;
+
+
+public class App extends Application {
+    @Override
+    public void start(Stage stage) {
+        ViewController vm = new ViewController(stage);
+
+        vm.addView("start", new StartView(vm));
+
+        vm.switchView("start");
+
+        stage.setTitle("Millions - the Stock Game");
+        stage.show();
+    }
+
     public static void main(String[] args) {
-        System.out.println("Hello World!");
+        launch();
     }
 }

millions/src/main/java/no/ntnu/gruppe53/controller/ViewController.java

@@ -0,0 +1,61 @@
+package no.ntnu.gruppe53.controller;
+
+import javafx.scene.Parent;
+import javafx.scene.Scene;
+import javafx.stage.Stage;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Manages application views and handles switching between them.
+ * <p>
+ * Stores a mapping of view names to JavaFX {@link Parent} nodes and updates
+ * the current Scene by replacing its root node when switching views.
+ * </p>
+ */
+public class ViewController {
+    /** Primary application window used to display the Scene. */
+    private Stage stage;
+    /** Scene containing the currently active view. */
+    private Scene scene;
+    /** Map of view identifiers to their corresponding UI roots. */
+    private Map<String, Parent> views = new HashMap<>();
+
+    /**
+     * Constructs a ViewController and initializes a new Scene.
+     *
+     * @param stage the primary application stage where the scene will be set
+     */
+    public ViewController(Stage stage) {
+        this.stage = stage;
+        this.scene = new Scene(new javafx.scene.layout.StackPane(), 800, 600);
+        stage.setScene(scene);
+    }
+
+    /**
+     * Registers a view in the controller.
+     *
+     * @param name unique identifier used to reference the view later
+     * @param view the JavaFX root node representing the view
+     */
+    public void addView(String name, Parent view) {
+        views.put(name, view);
+    }
+
+    /**
+     * Switches the currently displayed view by replacing the Scene root.
+     *
+     * @param name the identifier of the view to display
+     * @throws IllegalArgumentException if no view is registered under the given name
+     */
+    public void switchView(String name) {
+        Parent view = views.get(name);
+
+        if (view == null) {
+            throw new IllegalArgumentException("No views found matching: " + name);
+        }
+
+        scene.setRoot(view);
+    }
+}

millions/src/main/java/no/ntnu/gruppe53/views/StartView.java

@@ -0,0 +1,11 @@
+package no.ntnu.gruppe53.views;
+
+import javafx.scene.layout.VBox;
+import no.ntnu.gruppe53.controller.ViewController;
+
+public class StartView extends VBox {
+
+    public StartView(ViewController vm) {
+
+    }
+}