✨ 🚀 Add hair color, go to bed

resources/fxml/MainWindow.fxml

@@ -26,7 +26,13 @@
             </HBox>
             <HBox>
                 <Label text="first name: "/>
-                <TextField fx:id="firstnameTF"/>
+                <TextField fx:id="firstnameTF"
+                           disable="${promLV.selectionModel.selectedIndex == minus1}"/>
+            </HBox>
+            <HBox>
+                <Label text="hair color: "/>
+                <ColorPicker fx:id="hairColorPicker"
+                             disable="${promLV.selectionModel.selectedIndex == minus1}"/>
             </HBox>
         </VBox>
     </right>

resources/fxml/StudentCreationWindow.fxml

@@ -6,6 +6,7 @@
 <?import javafx.scene.layout.HBox?>
 <?import javafx.scene.layout.VBox?>
 <?import javafx.scene.control.Label?>
+<?import javafx.scene.control.ColorPicker?>
 <AnchorPane xmlns="http://javafx.com/javafx"
             xmlns:fx="http://javafx.com/fxml">
     <VBox>
@@ -17,6 +18,10 @@
             <Label text="first name"/>
             <TextField fx:id="firstnameTF"/>
         </HBox>
+        <HBox>
+            <Label text="hair color"/>
+            <ColorPicker fx:id="hairColorPicker"/>
+        </HBox>
         <HBox>
             <Button text="OK" onAction="#clickCreate" disable="${lastnameTF.text.empty || firstnameTF.text.empty}"/>
             <Button text="Cancel" onAction="#clickCancel"/>

src/data/Loader.java

@@ -1,6 +1,5 @@
 package data;
 
-import model.Promotion;
 import viewmodel.PromotionVM;
 
 import java.io.FileInputStream;

src/data/Stub.java

@@ -1,5 +1,6 @@
 package data;
 
+import javafx.scene.paint.Color;
 import viewmodel.PromotionVM;
 import viewmodel.StudentVM;
 
@@ -9,10 +10,10 @@ public class Stub implements Loadable {
     public PromotionVM load(){
         PromotionVM VM = new PromotionVM();
 
-        VM.addStudentVM(new StudentVM("ONE", "Alan"));
+        VM.addStudentVM(new StudentVM("ONE", "Alan", Color.BLACK));
-        VM.addStudentVM(new StudentVM("TWO", "Allan"));
+        VM.addStudentVM(new StudentVM("TWO", "Allan", Color.AQUAMARINE));
-        VM.addStudentVM(new StudentVM("THREE", "Alllan"));
+        VM.addStudentVM(new StudentVM("THREE", "Alllan", Color.ORANGERED));
-        VM.addStudentVM(new StudentVM("FOUR", "Allllan"));
+        VM.addStudentVM(new StudentVM("FOUR", "Allllan", Color.WHITESMOKE));
 
         return VM;
     }

src/model/Student.java

@@ -1,5 +1,7 @@
 package model;
 
+import utils.HairColor;
+
 import java.beans.PropertyChangeListener;
 import java.beans.PropertyChangeSupport;
 import java.io.Serializable;
@@ -7,14 +9,18 @@ import java.io.Serializable;
 public class Student implements Serializable {
 
     public static final String PROP_STUDENT_FIRSTNAME = "model.Student.firstname";
+    private static final String PROP_STUDENT_HAIR_COLOR = "model.Student.hairColor";
 
     private final String lastname;
 
     private String firstname;
 
-    public Student(String lastname, String firstName) {
+    private HairColor hairColor;
+
+    public Student(String lastname, String firstName, HairColor hairColor) {
         this.lastname = !lastname.isEmpty() ? lastname : "_";
         this.firstname = !firstName.isEmpty() ? firstName : "_";
+        this.hairColor = hairColor != null ? hairColor : new HairColor(0.0, 0.0, 0.0);
     }
 
     public String getLastname() {
@@ -25,6 +31,19 @@ public class Student implements Serializable {
         return firstname;
     }
 
+    public HairColor getHairColor() {
+        return hairColor;
+    }
+
+    public void setHairColor(HairColor hairColor) {
+        if(hairColor != null) {
+            HairColor oldV = getHairColor();
+            this.hairColor = hairColor;
+            // fire
+            getSupport().firePropertyChange(PROP_STUDENT_HAIR_COLOR, oldV, getHairColor());
+        }
+    }
+
     public void setFirstname(String firstname) {
         if(firstname != null) {
             String oldV = getFirstname();

src/utils/ColorConverter.java

@@ -0,0 +1,27 @@
+package utils;
+
+import javafx.scene.paint.Color;
+
+public class ColorConverter {
+
+    public static HairColor toHairColor(Color JFXColor) {
+        if (JFXColor == null) {return new HairColor(0.0, 0.0, 0.0);}
+        return new HairColor(JFXColor.getRed(), JFXColor.getGreen(), JFXColor.getBlue());
+    }
+
+    public static Color toJFXColor(HairColor hairColor) {
+        if (hairColor == null) {return Color.BLACK;}
+        return new Color(hairColor.r(), hairColor.g(), hairColor.b(), 1.0);
+    }
+
+    /**
+     * ACCEPTABLE TYPES: HairColor
+     */
+    public static Color toJFXColor(Object o) {
+        if (o instanceof HairColor) {
+            return toJFXColor((HairColor) o);
+        } else {
+            throw new IllegalArgumentException("only acceptable param types");
+        }
+    }
+}

src/utils/HairColor.java

@@ -1,4 +1,5 @@
 package utils;
 
-public class HairColor {
+import java.io.Serializable;
-}
+
+public record HairColor(double r, double g, double b) implements Serializable {}

src/view/MainWindow.java

@@ -4,6 +4,7 @@ import javafx.fxml.FXML;
 import javafx.fxml.FXMLLoader;
 import javafx.scene.Scene;
 import javafx.scene.control.*;
+import javafx.scene.paint.Color;
 import javafx.stage.Modality;
 import javafx.stage.Stage;
 import viewmodel.PromotionVM;
@@ -18,21 +19,29 @@ public class MainWindow {
     private Label lastnameTF;
     @FXML
     private TextField firstnameTF;
+    @FXML
+    private ColorPicker hairColorPicker;
 
     @FXML
     private void clickAddStudent() {
-        prepareCreationWindow();
+        displayAddWindow();
     }
 
-    private void prepareCreationWindow() {
+    private void displayAddWindow() {
         Stage stage = new Stage();
         stage.initOwner(promLV.getScene().getWindow());
         stage.initModality(Modality.WINDOW_MODAL);
 
         StudentCreationWindow controller = initCreationWindow(stage);
 
-        if (controller.getLastname() != null && controller.getFirstname() != null) {
+        if
-            VM.addStudentVM(new StudentVM(controller.getLastname(), controller.getFirstname()));
+        (controller.getLastname() != null &&
+         controller.getFirstname() != null &&
+         controller.getHairColor() != null)
+        {
+            VM.addStudentVM(new StudentVM(controller.getLastname(),
+                                          controller.getFirstname(),
+                                          controller.getHairColor()));
         }
     }
 
@@ -45,7 +54,6 @@ public class MainWindow {
             stage.setScene(new Scene(loader.load()));
             stage.showAndWait();
         } catch (IOException ex) {
-            ex.printStackTrace();
             new Alert(Alert.AlertType.ERROR, ex.getMessage(), ButtonType.OK).showAndWait();
         }
         return controller;
@@ -56,6 +64,7 @@ public class MainWindow {
         VM.removeStudentVM(promLV.getSelectionModel().getSelectedItem());
         lastnameTF.setText("");
         firstnameTF.setText("");
+        hairColorPicker.setValue(Color.WHITE);
     }
 
     @FXML
@@ -73,7 +82,7 @@ public class MainWindow {
     private void initialize() {
         promLV.itemsProperty().bind(VM.studentsVMProperty());
         initPromLV();
-        promLV.setCellFactory(__ -> new StudentVMCell());
+        promLV.setCellFactory(__ -> new StudentCell());
     }
 
     private void initPromLV() {
@@ -81,10 +90,12 @@ public class MainWindow {
             if (oldV != null) {
                 lastnameTF.textProperty().unbind();
                 firstnameTF.textProperty().unbindBidirectional(oldV.firstnameProperty());
+                hairColorPicker.valueProperty().unbindBidirectional(oldV.hairColorProperty());
             }
             if (newV != null) {
                 lastnameTF.textProperty().bind(newV.lastnameProperty());
                 firstnameTF.textProperty().bindBidirectional(newV.firstnameProperty());
+                hairColorPicker.valueProperty().bindBidirectional(newV.hairColorProperty());
             }
         });
     }

src/view/StudentCell.java

@@ -3,9 +3,10 @@ package view;
 import javafx.scene.control.Label;
 import javafx.scene.control.ListCell;
 import javafx.scene.layout.BorderPane;
+import javafx.scene.shape.Rectangle;
 import viewmodel.StudentVM;
 
-public class StudentVMCell extends ListCell<StudentVM> {
+public class StudentCell extends ListCell<StudentVM> {
     @Override
     protected void updateItem(StudentVM item, boolean empty) {
         super.updateItem(item, empty);
@@ -13,12 +14,17 @@ public class StudentVMCell extends ListCell<StudentVM> {
 
             Label lastnameLbl = new Label();
             Label firstnameLbl = new Label();
+            Rectangle hairClrRect = new Rectangle();
             lastnameLbl.textProperty().bind(item.lastnameProperty());
             firstnameLbl.textProperty().bind(item.firstnameProperty());
+            hairClrRect.setHeight(10.0);
+            hairClrRect.setWidth(10.0);
+            hairClrRect.fillProperty().bind(item.hairColorProperty());
 
             BorderPane pane = new BorderPane();
             pane.setLeft(lastnameLbl);
             pane.setCenter(firstnameLbl);
+            pane.setRight(hairClrRect);
 
             setGraphic(pane);
         }

src/view/StudentCreationWindow.java

@@ -1,12 +1,15 @@
 package view;
 
 import javafx.fxml.FXML;
+import javafx.scene.control.ColorPicker;
 import javafx.scene.control.TextField;
+import javafx.scene.paint.Color;
 
 public class StudentCreationWindow {
 
     private String lastname;
     private String firstname;
+    private Color hairColor;
 
     public String getLastname() {
         return lastname;
@@ -16,15 +19,22 @@ public class StudentCreationWindow {
         return firstname;
     }
 
+    public Color getHairColor() {
+        return hairColor;
+    }
+
     @FXML
     private TextField firstnameTF;
     @FXML
     private TextField lastnameTF;
+    @FXML
+    private ColorPicker hairColorPicker;
 
     @FXML
     private void clickCreate() {
         lastname = lastnameTF.getText();
         firstname = firstnameTF.getText();
+        hairColor = hairColorPicker.getValue();
         close();
     }
 
@@ -32,6 +42,7 @@ public class StudentCreationWindow {
     private void clickCancel() {
         lastname = null;
         firstname = null;
+        hairColor = null;
         close();
     }
 

src/viewmodel/StudentVM.java

@@ -1,8 +1,12 @@
 package viewmodel;
 
+import javafx.beans.property.ObjectProperty;
+import javafx.beans.property.SimpleObjectProperty;
 import javafx.beans.property.SimpleStringProperty;
 import javafx.beans.property.StringProperty;
+import javafx.scene.paint.Color;
 import model.Student;
+import utils.ColorConverter;
 
 import java.beans.PropertyChangeEvent;
 import java.beans.PropertyChangeListener;
@@ -24,13 +28,18 @@ public class StudentVM implements PropertyChangeListener {
     public StringProperty firstnameProperty() {return firstname;}
     public void setFirstname(String firstname) {this.firstname.set(firstname);}
 
+    private final ObjectProperty<Color> hairColor = new SimpleObjectProperty<>();
+    public Color getHairColor() {return hairColor.get();}
+    public ObjectProperty<Color> hairColorProperty() {return hairColor;}
+    public void setHairColor(Color hairColor) {this.hairColor.set(hairColor);}
+
     public StudentVM(Object o) {
         Student model;
         if (o instanceof Student) {
             model = (Student) o;
         }
         else {
-            model = new Student("", "");
+            model = new Student("", "", null);
         }
 
         this.model = model;
@@ -38,30 +47,31 @@ public class StudentVM implements PropertyChangeListener {
         // load into self
         setFirstname(model.getFirstname());
         setLastname(model.getLastname());
+        setHairColor(ColorConverter.toJFXColor(model.getHairColor()));
 
         // subscribe
         model.addListener(this);
 
         // promise to update
         firstnameProperty().addListener((__, ___, newV) -> model.setFirstname(newV));
+        hairColorProperty().addListener((__, ___, newV) -> model.setHairColor(ColorConverter.toHairColor(newV)));
     }
 
-    public StudentVM(String lastname, String firstname) {
+    public StudentVM(String lastname, String firstname, Color JFXHairColor) {
-        this(new Student(lastname, firstname));
+        this(new Student(lastname, firstname, ColorConverter.toHairColor(JFXHairColor)));
     }
 
     public StudentVM(Student model) {
         this((Object) model);
     }
 
-    public StudentVM() {
-        this(null);
-    }
-
     @Override
     public void propertyChange(PropertyChangeEvent evt) {
         if (evt.getPropertyName().equals(Student.PROP_STUDENT_FIRSTNAME)) {
             setFirstname((String) evt.getNewValue());
         }
+        if (evt.getPropertyName().equals(Student.PROP_STUDENT_FIRSTNAME)) {
+            setHairColor(ColorConverter.toJFXColor(evt.getNewValue()));
+        }
     }
 }