I am creating an application where I'm combining FXML and regular javaFX to create an application. I'm, however, experiencing problems writing EventHandlers for a Stage-subclass called AddItemWindow that generates custom windows.
The application shows a list of items (keys and weapons) in an inventory. The user can add items, and needs to press a button to add the item of his choice (Add Key or Add Weapon).
A new window then pops up, where the user has to input the relevant data. It will generate a GridPane with the TextFields where the user can input the data. This will be a custom GridPane, depending on the ItemType. It will then load the FXML and add the GridPane.
With the below code, I am getting LoadExceptions for my SetOnAction-code for the buttons cancelling the window or confirming the new item.
Would any-one know where I'm making an error?
/* StartUp Class*/ package main;
//imports from javafx and java
import domain.DomainController;
import gui.OverviewWindow;
public class StartUpGUI extends Application {
@Override
public void start(Stage primaryStage) {
Parent root = new OverviewWindow(new DomainController());
Scene scene = new Scene(root);
primaryStage.setTitle("Weapons and Keys");
primaryStage.setScene(scene);
primaryStage.show();
}
public static void main(String... args) {
Application.launch(StartUpGUI.class, args);
}
}
/* OverviewWindow, subclass of BorderPane */ package gui;
//imports from javafx and java
import domain.DomainController;
import domain.ItemType;
public class OverviewWindow extends BorderPane{
@FXML
private Button btnAddWeapon;
@FXML
private Button btnAddKey;
@FXML
private TextArea txaOverview;
private DomainController dc;
this.dc = dc;
FXMLLoader loader = new FXMLLoader(getClass().getResource("OverviewWindow.fxml"));
loader.setRoot(this);
loader.setController(this);
try{
loader.load();
txaOverview.setText(dc.showOverview()); // showOverview returns a String containing a toString of all items in the inventory
}
catch (IOException ex){
throw new RuntimeException(ex);
}
}
@FXML
public void btnAddWeaponOnAction(ActionEvent event){
try{
add(ItemType.WEAPON); // ItemType is an Enum where all the properties of the items are defined; for Weapon: name, weight, level, power, used(boolean)
}
catch (Exception e){
throw e;
}
}
@FXML
public void btnAddKeyOnAction(ActionEvent event){
try{
add(ItemType.SLEUTEL); // ItemType is an Enum where all the properties of the items are defined; for Key: name, weight, level, door
}
catch (Exception e){
throw e;
}
}
private void add(ItemType itemType){
Stage stage = new Stage();
stage.setTitle(itemType== VoorwerpSoort.WEAPON ? "Add Weapon" : "Add Key");
AddItem addItem = new AddItem(dc,itemType,this);
addItem.setOnHiding(new EventHandler<WindowEvent>(){
@Override
public void handle(WindowEvent e){
txaOverview.setText(dc.showOverview()); // when we close the AddItemWindow, we will update the item overview by having the domain controller get this data from the repository
}
});
addItem.show();
}
}
/* AddItemWindow, a subclass of Stage*/ package gui;
// import relevant javafx and java classes
import domain.DomainController;
import domain.ItemType;
public class AddItemWindow extends Stage {
@FXML
private BorderPane addRoot;
@FXML
private Button btnOK;
@FXML
private Button btnCancel;
private DomainController dc;
private ItemType itemType;
private Parent parent;
private TextField[] txfAttributes;
public AddItemWindow(DomainController dc, ItemType itemType, OverviewWindow overviewWindow){
this.dc = dc;
this.itemType = itemType;
this.parent = overviewWindow;
this.setScene(buildGUI(dc,itemType,overviewWindow));
}
private Scene buildGUI(DomeinController dc, VoorwerpSoort vwps, OverzichtSchermController ovsController){
Parent root = new BorderPane();
GridPane properties = new GridPane();
properties.setPadding(new Insets(10));
properties.setHgap(10);
properties.setVgap(10);
ColumnConstraints col1 = new ColumnConstraints();
col1.setHalignment(HPos.RIGHT);
ColumnConstraints col2 = new ColumnConstraints();
properties.getColumnConstraints().addAll(col1, col2);
String[] attributes = itemType.attributeNames();
txfAttributes = new TextField[attributes.length];
for(int i = 0; i<attributes.length; i++){
properties.add(new Label(attributes[i]),0,i);
properties.add(txfAttributes[i] = new TextField(),1,i);
}
((BorderPane) root).setCenter(properties);
FXMLLoader loader = new FXMLLoader(getClass().getResource("AddItemWindow.fxml"));
loader.setRoot(root);
loader.setController(root);
try{
loader.load();
return new Scene(root);
}
catch(IOException e){
throw new RuntimeException(e);
}
}
// NOT WORKING
@FXML
public void btnOKOnAction(){
addItem();
}
// NOT WORKING
@FXML
public void btnCancelOnAction(ActionEvent event){
hide();
}
private void voorwerpToevoegen(){ // we're calling the domaincontroller to add the new item to the repository
switch (itemType)
{
// for the item, add an item by getting the value of each TextField, which are the
// parameters for a constructor of the new item
case WEAPON:
dc.addWeapon(txfAttributes[0].getText(),
Double.parseDouble(txfAttributes[1].getText()),
Integer.parseInt(txfAttributes[2].getText()),
Integer.parseInt(txfAttributes[3].getText()),
Boolean.parseBoolean(txfAttributes[4].getText()));
break;
case KEY:
dc.addKey(txfAttributes[0].getText(),
Double.parseDouble(txfAttributes[1].getText()),
Integer.parseInt(txfAttributes[2].getText()),
Integer.parseInt(txfAttributes[3].getText()));
break;
}
hide();
}
}
