Dynamic release of variable size of dispatch class method array on FPGA

Similar Questions

• Table of variable size in a FlowPane

  If I have an array of variable size (for example, an array of cards).
  
  How I build something to show the items (in a FlowPane for example) and each of them having its own controller (fxml + controller for each card), so that the container (stream stream), items (cards) can have its interlaced, deleted, or added new elements?
  
  Controller:

  public class HandController extends FlowPane implements Initializable{
      @Override public void initialize(URL arg0, ResourceBundle arg1){
      }
      public void setHand(ArrayList<Cards> Hand){
          //this would work if the hand were static
          for(int i = 0; i < Hand.size(); ++i){
              FXMLLoader fxmlLoader = new FXMLLoader(getClass().getResource("CardView.fxml"));
              CardController controller = new CardController();
              fxmlLoader.setController(controller);
              fxmlLoader.setRoot(controller);
              Parent card = (Parent)fxmlLoader.load();
              fxmlLoader.setRoot(card);
              this.getChildren().add(card);
              controller.setCard(Hand.get(i));
          }
      }
  }

  Fxml:

  <fx:root type="FlowPane" xmlns:fx="http://javafx.com/fxml"
           stylesheets="view/Style.css">
      <children>
          <!--should i put something here?-->
      </children>
  </fx:root>

  Well, I'm bored...

  This 'game' has a hand of five cards. You can dial from a bridge by hand and then play (or throw) a map by double-clicking on it.

  The model includes a map of class, a class of bridge and a GameModel class. The last of them following hand and bridge and the relationship between them. Card and bridge have been written from my memory to read an example of Enums by Josh Bloch.

  Card.Java

  package cardgame;
  
  public class Card {
  
       public enum Rank {
            Ace, Two, Three, Four, Five, Six, Seven, Eight, Nine, Ten, Jack, Queen, King
       };
  
       public enum Suit {
            Clubs, Diamonds, Hearts, Spades
       };
  
       private final Rank rank;
       private final Suit suit;
  
       public Card(Rank rank, Suit suit) {
            this.rank = rank;
            this.suit = suit;
       }
  
       public Rank getRank() {
            return rank;
       }
  
       public Suit getSuit() {
            return suit;
       }
  
       @Override
       public String toString() {
            return String.format("%s of %s", rank, suit);
       }
  
       @Override
       public int hashCode() {
            final int prime = 31;
            int result = 1;
            result = prime * result + ((rank == null) ? 0 : rank.hashCode());
            result = prime * result + ((suit == null) ? 0 : suit.hashCode());
            return result;
       }
  
       @Override
       public boolean equals(Object obj) {
            if (this == obj)
                 return true;
            if (obj == null)
                 return false;
            if (getClass() != obj.getClass())
                 return false;
            Card other = (Card) obj;
            if (rank != other.rank)
                 return false;
            if (suit != other.suit)
                 return false;
            return true;
       }
  
  }
  

  Deck.Java

  package cardgame;
  
  import java.util.ArrayList;
  import java.util.LinkedList;
  import java.util.List;
  import java.util.Random;
  
  import cardgame.Card.Rank;
  import cardgame.Card.Suit;
  
  public class Deck {
  
       private final List cards;
  
       private Deck() {
            cards = new LinkedList();
            for (Suit suit : Suit.values())
                 for (Rank rank : Rank.values())
                      cards.add(new Card(rank, suit));
       }
  
       public static Deck newDeck() {
            return new Deck();
       }
  
       public static Deck shuffledDeck() {
            return newDeck().shuffle();
       }
  
       public Deck shuffle() {
            final List copy = new ArrayList(cards.size());
            Random rng = new Random();
            while (cards.size() > 0) {
                 int index = rng.nextInt(cards.size());
                 copy.add(cards.remove(index));
            }
            cards.clear();
            cards.addAll(copy);
            return this;
       }
  
       public Card deal() {
            return cards.remove(0);
       }
  
       public int size() {
            return cards.size();
       }
  
  }
  

  GameModel.java

  package cardgame;
  
  import javafx.beans.binding.BooleanBinding;
  import javafx.beans.property.BooleanProperty;
  import javafx.beans.property.ReadOnlyBooleanProperty;
  import javafx.beans.property.SimpleBooleanProperty;
  import javafx.collections.FXCollections;
  import javafx.collections.ObservableList;
  
  public class GameModel {
       private ObservableList hand;
       private Deck deck;
       private BooleanProperty canDeal;
  
       public GameModel() {
            this.hand = FXCollections.observableArrayList();
            this.deck = Deck.newDeck().shuffle();
            this.canDeal = new SimpleBooleanProperty(this, "canDeal");
            canDeal.bind(new BooleanBinding() {
                 {
                      super.bind(hand);
                 }
  
                 @Override
                 protected boolean computeValue() {
                      return deck.size() > 0 && hand.size() < 5;
                 }
            });
       }
  
       public ObservableList getHand() {
            return hand;
       }
  
       public ReadOnlyBooleanProperty canDealProperty() {
            return canDeal;
       }
  
       public boolean canDeal() {
            return canDeal.get();
       }
  
       public void deal() throws IllegalStateException {
            if (deck.size() <= 0) {
                 throw new IllegalStateException("No cards left to deal");
            }
            if (hand.size() >= 5) {
                 throw new IllegalStateException("Hand is full");
            }
            hand.add(deck.deal());
       }
  
       public void playCard(Card card) throws IllegalStateException {
            if (hand.contains(card)) {
                 hand.remove(card);
            } else {
                 throw new IllegalStateException("Hand does not contain " + card);
            }
       }
  }
  

  The CardController is the controller for a CardView. It takes a reference to a map and its initialize method initializes the view to view (the view is just a simple label).

  CardController.java

  package cardgame;
  
  import javafx.fxml.FXML;
  import javafx.scene.control.Label;
  
  public class CardController {
       private final Card card;
  
       @FXML
       private Label label;
  
       public CardController(Card card) {
            this.card = card;
       }
  
       public void initialize() {
            label.setText(String.format("%s%nof%n%s", card.getRank(),
                      card.getSuit()));
       }
  
  }
  

  The HandController is the controller for the display of the hand. This is where most of the action happens. The trick here is that it requires a reference to a GameModel, which must be injected somewhere, we need a setModel method (...), or something similar. I didn't assume the order of events: that is, the model is injected before or after calling the initialize() method. To keep this flexibility, I used an ObjectProperty to encapsulate the model and listen to changes. When the model is updated, I register a listener with the hand (exposed by the model). This listener rebuilt in turn views of cards when the hand is changed. Also, there is a 'deal' button, the disabled state is managed by binding to a property in the model (using a tip of the link class to allow the value of the dynamic model).

  HandController.java

  package cardgame;
  
  import java.io.IOException;
  
  import javafx.beans.binding.Bindings;
  import javafx.beans.property.ObjectProperty;
  import javafx.beans.property.SimpleObjectProperty;
  import javafx.beans.value.ChangeListener;
  import javafx.beans.value.ObservableValue;
  import javafx.collections.ListChangeListener;
  import javafx.event.EventHandler;
  import javafx.fxml.FXML;
  import javafx.fxml.FXMLLoader;
  import javafx.scene.Node;
  import javafx.scene.control.Button;
  import javafx.scene.input.MouseEvent;
  import javafx.scene.layout.Pane;
  
  public class HandController {
  
       private ObjectProperty model;
       @FXML
       private Pane container;
       @FXML
       private Button dealButton;
  
       public HandController() {
            this.model = new SimpleObjectProperty(this, "model", null);
            final ListChangeListener handListener = new ListChangeListener() {
                 @Override
                 public void onChanged(Change change) {
                      container.getChildren().clear();
                      try {
                           for (Card card : model.get().getHand()) {
                                container.getChildren().add(loadCardView(card));
                           }
                      } catch (IOException e) {
                           e.printStackTrace();
                      }
                 }
            };
            model.addListener(new ChangeListener() {
  
                 @Override
                 public void changed(
                           ObservableValue observable,
                           GameModel oldValue, GameModel newValue) {
                      if (oldValue != null) {
                           oldValue.getHand().removeListener(handListener);
                      }
                      if (newValue != null) {
                           newValue.getHand().addListener(handListener);
                      }
                 }
  
            });
       }
  
       public void setModel(GameModel model) {
            this.model.set(model);
       }
  
       public void initialize() {
            dealButton.disableProperty().bind(
                      Bindings.selectBoolean(model, "canDeal").not());
       }
  
       private Node loadCardView(final Card card) throws IOException {
            FXMLLoader loader = new FXMLLoader(getClass().getResource(
                      "CardView.fxml"));
            CardController controller = new CardController(card);
            loader.setController(controller);
            Node cardView = (Node) loader.load();
            cardView.setOnMouseClicked(new EventHandler() {
                 @Override
                 public void handle(MouseEvent event) {
                      if (event.getClickCount() == 2) {
                           model.get().playCard(card);
                      }
                 }
            });
            return cardView;
       }
  
       public void dealCard() {
            model.get().deal();
       }
  
  }
  

  Here are the FXML files:

  CardView.fxml

  Hand.fxml

  Aggregate demand is managed by a Game.fxml:

  with a GameController:

  package cardgame;
  
  import javafx.fxml.FXML;
  
  public class GameController {
  
       @FXML private HandController handController ;
  
       private GameModel model ;
  
       public GameController() {
            model = new GameModel();
       }
  
       public void initialize() {
            handController.setModel(model);
       }
  }
  

  Game.Java is the main class:

  package cardgame;
  
  import java.io.IOException;
  
  import javafx.application.Application;
  import javafx.fxml.FXMLLoader;
  import javafx.scene.Parent;
  import javafx.scene.Scene;
  import javafx.scene.paint.Color;
  import javafx.stage.Stage;
  
  public class Game extends Application {
  
       @Override
       public void start(Stage primaryStage) throws IOException {
            Scene scene = new Scene(FXMLLoader.load(getClass().getResource("Game.fxml")), 600, 400, Color.DARKGREEN);
            scene.getStylesheets().add(getClass().getResource("style.css").toExternalForm());
            primaryStage.setScene(scene);
            primaryStage.show();
       }
  
       public static void main(String[] args) {
            launch(args);
       }
  }
  

  and then a style sheet

  style. CSS:

  @CHARSET "US-ASCII";
  
  .card {
       -fx-background-color: white ;
       -fx-border-color: black ;
       -fx-border-radius: 5 ;
       -fx-border-style: solid ;
       -fx-padding: 5 ;
  }
  
  .card .label {
       -fx-text-alignment: center ;
  }
  

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  Nevermind, I figured it.  I forgot to set them in my code.