Insert small icon (Emotion) in text message like Facebook chat message [duplicate] - javafx

I am trying to add an emoji to my chat program when my client types :)
I am trying to add this in the FXML controller. I have captured when the user types :) using the following code snippet :
if(chat.contains(":)")) {
...
}
My chat is printed into a textarea named taChat
taChat.appendText(chat + '\n');
Any help is appreciated!

A better approach would be to use TextFlow instead of using TextArea.
Advantages :
Individual Text are treated as children to the TextFlow. They can be added and accessed individually.
ImageView can be added directly to the TextFlow as a child.
A simple chat window with support for smiley :)
import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.TextField;
import javafx.scene.image.ImageView;
import javafx.scene.input.KeyCode;
import javafx.scene.layout.HBox;
import javafx.scene.layout.Priority;
import javafx.scene.layout.VBox;
import javafx.scene.text.Text;
import javafx.scene.text.TextFlow;
import javafx.stage.Stage;
public class ChatWindowWithSmiley extends Application {
public void start(Stage primaryStage) {
TextFlow textFlow = new TextFlow();
textFlow.setPadding(new Insets(10));
textFlow.setLineSpacing(10);
TextField textField = new TextField();
Button button = new Button("Send");
button.setPrefWidth(70);
VBox container = new VBox();
container.getChildren().addAll(textFlow, new HBox(textField, button));
VBox.setVgrow(textFlow, Priority.ALWAYS);
// Textfield re-sizes according to VBox
textField.prefWidthProperty().bind(container.widthProperty().subtract(button.prefWidthProperty()));
// On Enter press
textField.setOnKeyPressed(e -> {
if(e.getCode() == KeyCode.ENTER) {
button.fire();
}
});
button.setOnAction(e -> {
Text text;
if(textFlow.getChildren().size()==0){
text = new Text(textField.getText());
} else {
// Add new line if not the first child
text = new Text("\n" + textField.getText());
}
if(textField.getText().contains(":)")) {
ImageView imageView = new ImageView("http://files.softicons.com/download/web-icons/network-and-security-icons-by-artistsvalley/png/16x16/Regular/Friend%20Smiley.png");
// Remove :) from text
text.setText(text.getText().replace(":)"," "));
textFlow.getChildren().addAll(text, imageView);
} else {
textFlow.getChildren().add(text);
}
textField.clear();
textField.requestFocus();
});
Scene scene = new Scene(container, 300, 400);
primaryStage.setScene(scene);
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}
}
Output
For unicode Emoji support, please visit How to support Emojis

Related

Updating the Width of TextField and VBox when Full screened JavaFX

whenever I try to full screen my application, it doesn't scale. I've made multiple copies of this application trying different methods but none seem to work right.
First attempt: Application was a Parent, it would scale the background but the elements inside wouldn't scale to screen size.
As an update: here is the actual Parent that was made. The layout is the original one I wrote and has no issues when it's windowed. It has a preset WIDTH and HEIGHT but when full screened, The first example picture is what it looks like where the WIDTH of the the TextField doesn't update (since it's preset and not updating to the highest WIDTH of the screen it's running on). There are two parts to this that CAN be fixed when only one is fixed. The displayed Text has a set wrapping length of the console, though it is set by using WIDTH.
Here's what the console looks like when it's windowed:
If I could find a way to change the WIDTH, I'm thinking this can be fixed for both the TextField and the setWrappingWidth().
package application.console;
import application.areas.startingArea.SA;
import application.areas.vanguardForest.VFCmds;
import application.areas.vanguardForest.VFNavi;
import application.areas.vanguardForest.VFPkups;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.scene.Parent;
import javafx.scene.control.ScrollPane;
import javafx.scene.control.ScrollPane.ScrollBarPolicy;
import javafx.scene.control.TextField;
import javafx.scene.layout.Background;
import javafx.scene.layout.BackgroundFill;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.HBox;
import javafx.scene.layout.Pane;
import javafx.scene.layout.Region;
import javafx.scene.layout.VBox;
import javafx.scene.paint.Color;
import javafx.scene.text.Font;
import javafx.scene.text.Text;
public class Ce extends Region {
public static boolean fullscreen = false;
public static double WIDTH = 990;
// 990;
// Screen.getPrimary().getBounds().getMaxX();
public static double HEIGHT = 525;
// 525;
// Screen.getPrimary().getBounds().getMaxY();
public static Font Cinzel = (Font.loadFont("file:fonts/static/Cinzel-Medium.ttf", 16));
public static VBox console = new VBox(2);
public static TextField input = new TextField();
public static ScrollPane scroll = new ScrollPane();
public static BorderPane root = new BorderPane();
public static String s;
public static Parent Window() {
root.setMinSize(WIDTH, (HEIGHT - input.getHeight()));
root.setStyle("-fx-background-color: #232323;");
scroll.setContent(console);
root.setCenter(scroll);
scroll.setStyle("-fx-background: #232323;"
+ "-fx-background-color: transparent;"
+ "-fx-border-color: #232323;"
+ "-fx-focus-color: #232323;"
);
scroll.setHbarPolicy(ScrollBarPolicy.NEVER);
scroll.setVbarPolicy(ScrollBarPolicy.NEVER);
scroll.setBackground(new Background(new BackgroundFill(Color.TRANSPARENT, null, null)));
console.setStyle("-fx-background-color: #232323;"
+ "-fx-focus-color: #232323;");
console.heightProperty().addListener(new ChangeListener<Object>() {
#Override
public void changed(ObservableValue<?> observable, Object oldValue, Object newValue) {
scroll.setVvalue((Double)newValue);
}
});
HBox hbox = new HBox();
hbox.setPrefSize(WIDTH, 16);
root.setBottom(hbox);
Text carrot = new Text(" >");
carrot.setFont(Font.loadFont("file:fonts/static/Cinzel-Medium.ttf", 26));
carrot.setFill(Color.WHITE);
input.setStyle("-fx-background-color: transparent;"
+ "-fx-text-fill: #FFFFFF;"
+ "-fx-highlight-fill: #FFFFFF;"
+ "-fx-highlight-text-fill: #232323;"
// + "-fx-border-color: #FFFFFF;"
// + "-fx-border-width: .5;"
);
input.setFont(Cinzel);
input.setMinWidth(console.getWidth());
input.setOnAction(e -> {
String s = (input.getText()).stripTrailing();
input.clear();
});
Pane pane = new Pane();
root.getChildren().add(pane);
hbox.getChildren().addAll(carrot, input);
return root;
}
This isn't the main issue as I've stated, once getting the scaled width for the TextField the process of for setWrappingWidth() for displaying the text should be the if a solution is found, here's how it goes:
#SuppressWarnings("static-access")
public void print(String s, Color c) {
Ce Ce = new Ce();
HBox text1 = new HBox();
text1.setMinWidth(Ce.WIDTH);
text1.setMaxWidth(Ce.WIDTH);
Text tCarrot = new Text(" > ");
tCarrot.setFont(Ce.Cinzel);
tCarrot.setFill(c);
Text text2 = new Text();
final IntegerProperty i = new SimpleIntegerProperty(0);
Timeline tl = new Timeline();
KeyFrame kf = new KeyFrame(
Duration.seconds(textSpeed(fastText)),
e1 -> {
if(i.get() > s.length()) {
tl.stop();
} else {
text2.setText(s.substring(0, i.get()));
i.set(i.get() + 1);
}
});
tl.getKeyFrames().add(kf);
tl.setCycleCount(Animation.INDEFINITE);
tl.play();
text2.setFill(c);
text2.setFont(Ce.Cinzel);
text2.setWrappingWidth(Ce.WIDTH - 40);
text1.getChildren().addAll(tCarrot, text2);
Ce.console.getChildren().add(text1);
Ce.console.setMargin(text1, new Insets(5, 0, 0, 3));
}
Lastly, the HEIGHT of the VBox for the displayed Text works just as intended, it's just the setting/updating the WIDTH to set it to the size of the window whether Windowed of Full screened that is the main issue here.
Try this app. It will not be exactly what you want but may provide some useful help for you if you study it, if not just ignore it, tears can keep you blind, and sometimes, that is ok.
The implementation follows the suggestions you have received in the comments on your questions which together explain what is being done and why, so I won't provide much commentary on the solution here.
Type text in the input bar, press enter and it will appear in the listview for the console log. Use the Toggle full-screen button to toggle full-screen mode on or off.
Console.java
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.geometry.Pos;
import javafx.scene.control.*;
import javafx.scene.layout.*;
import javafx.scene.text.Text;
import javafx.stage.Stage;
public class Console extends VBox {
private final ObservableList<String> consoleLog = FXCollections.observableArrayList();
private final ListView<String> logView = new ListView<>(consoleLog);
public Console(Stage stage) {
VBox.setVgrow(logView, Priority.ALWAYS);
HBox ribbon = createRibbon(
createFullScreenToggle(stage)
);
ribbon.setMinHeight(HBox.USE_PREF_SIZE);
getChildren().addAll(
ribbon,
logView
);
}
private ToggleButton createFullScreenToggle(Stage stage) {
ToggleButton fullScreenToggle = new ToggleButton("Toggle full screen");
fullScreenToggle.setOnAction(e ->
stage.setFullScreen(
fullScreenToggle.isSelected()
)
);
return fullScreenToggle;
}
private HBox createRibbon(ToggleButton fullscreenToggle) {
Text prompt = new Text(">");
TextField input = new TextField();
input.setOnAction(e -> {
consoleLog.add(0, input.getText());
logView.scrollTo(0);
input.clear();
});
HBox.setHgrow(input, Priority.ALWAYS);
HBox ribbon = new HBox(10,
prompt,
input,
fullscreenToggle
);
ribbon.setAlignment(Pos.BASELINE_LEFT);
return ribbon;
}
public ObservableList<String> getConsoleLog() {
return consoleLog;
}
}
ConsoleApplication.java
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.stage.Stage;
public class ConsoleApplication extends Application {
#Override
public void start(Stage stage) {
Console console = new Console(stage);
console.getConsoleLog().addAll(
TEXT.lines().toList()
);
stage.setScene(
new Scene(
console
)
);
stage.show();
}
public static void main(String[] args) {
launch(args);
}
private static final String TEXT = """
W. Shakespeare - Sonnet 148
O me, what eyes hath Love put in my head,
Which have no correspondence with true sight!
Or, if the have, where is my judgement fled,
That censures falsely what they see aright?
If that be fair whereon my false eyes dote,
What means the world to say it is not so?
If it be not, then love doth well denote
Love’s eye is not so true as all men’s ‘No.’
How can it? O, how can Love’s eye be true,
That is so vex’d with watching and with tears?
No marvel then, though I mistake my view;
The sun itself sees not till heaven clears.
O cunning Love! with tears thou keep’st me blind.
Lest eyes well-seeing thy foul faults should find.
""";
}
If you want to increase the nodes height/width according to the viewport, then this's not the best practice, because every user will have the same font size at the end. What you can do is to make the font resizable by either GUI buttons or keyboard/mouse keys.
Here is a modification on your code, that will allow users to use ctrl + mouse wheel to increase/decrease the font (like any browser or terminal):
import javafx.application.Application;
import javafx.beans.binding.Bindings;
import javafx.beans.binding.ObjectBinding;
import javafx.beans.property.SimpleDoubleProperty;
import javafx.event.EventHandler;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.ScrollPane;
import javafx.scene.control.TextField;
import javafx.scene.input.ScrollEvent;
import javafx.scene.layout.*;
import javafx.scene.paint.Color;
import javafx.scene.text.Font;
import javafx.scene.text.Text;
import javafx.stage.Stage;
public class ConsoleTest extends Application {
#Override
public void start(Stage stage) {
Scene scene = new Scene(new GameWindow().Console(), 600, 600);
stage.setTitle("Console");
stage.setScene(scene);
stage.show();
}
public static void main(String[] args) {
launch();
}
}
class GameWindow {
public static Console c = new Console();
public Parent Console() {
for (int i = 0; i < 100; i++) c.addText(new Text("Test" + i));
return c;
}
}
class Console extends BorderPane {
private final SimpleDoubleProperty fontSize = new SimpleDoubleProperty(20);
private final ObjectBinding<Font> fontBinding = Bindings.createObjectBinding(() -> Font.font(fontSize.get()), fontSize);
private final VBox console;
public Console() {
console = new VBox();
console.setBackground(new Background(new BackgroundFill(Color.BLACK, CornerRadii.EMPTY, Insets.EMPTY)));
ScrollPane scroll = new ScrollPane(console);
scroll.setHbarPolicy(ScrollPane.ScrollBarPolicy.NEVER);
scroll.setVbarPolicy(ScrollPane.ScrollBarPolicy.NEVER);
scroll.setFitToHeight(true);
scroll.setFitToWidth(true);
scroll.setPadding(Insets.EMPTY);
Text caret = new Text(" >");
caret.fontProperty().bind(fontBinding);
caret.setFill(Color.WHITE);
TextField input = new TextField();
input.setStyle("-fx-background-color: transparent;" + "-fx-text-fill: #FFFFFF;" + "-fx-highlight-fill: #FFFFFF;" + "-fx-highlight-text-fill: #232323;");
input.fontProperty().bind(fontBinding);
HBox inputBar = new HBox(2, caret, input);
inputBar.setStyle("-fx-background-color: #232323;");
inputBar.setAlignment(Pos.CENTER_LEFT);
setCenter(scroll);
setBottom(inputBar);
EventHandler<ScrollEvent> scrollEvent = e -> {
if (e.isControlDown()) {
if (e.getDeltaY() > 0) {
fontSize.set(fontSize.doubleValue() + 2);
} else {
double old;
fontSize.set((old = fontSize.doubleValue()) < 10 ? old : old - 2);
}
e.consume();
}
};
inputBar.setOnScroll(scrollEvent);
console.setOnScroll(scrollEvent);
}
public void addText(Text text) {
text.fontProperty().bind(fontBinding);
text.setFill(Color.WHITE);
console.getChildren().add(text);
}
}

How to pass file path from a FileChooser button to another button?

I'm trying to make a program with some filters of image by using JavaFx, so I need two button at least, one is a file chooser to open an image, and another one will be a choice box that allows to choose a filter.
My problem is how could a choice box get the path name or a file object from the file chooser.
here is my program unfinished :
import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.scene.control.Button;
import javafx.scene.control.ChoiceBox;
import javafx.scene.layout.*;
import javafx.stage.FileChooser;
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
public class Filter extends Application{
public void start(final Stage stage) {
stage.setTitle("FilterShop");
final FileChooser fileChooser = new FileChooser();
final Button openButton = new Button("Select a photo");
ChoiceBox<String> choiceBox = new ChoiceBox<>();
choiceBox.getItems().add("Choose a Filter");
choiceBox.getItems().addAll("Remove watermark", "Brightness", "Grey", "Mosaic");
choiceBox.getSelectionModel().selectFirst();
final Pane stac = new Pane();
openButton.setOnAction(e -> {
File file = fileChooser.showOpenDialog(stage);
if (file != null) {
Image image = new Image(file.toURI().toString());
ImageView imageView = new ImageView(image);
imageView.setX(50);
imageView.setY(50);
imageView.setFitWidth(300);
imageView.setFitHeight(470);
imageView.setPreserveRatio(true);
stac.getChildren().add(imageView);
}
});
choiceBox.setOnAction(event1 -> {
if (choiceBox.getValue() == "Mosaic") {
try {
BufferedImage imagen = ImageIO.read(/* A file object is needed here. */ );
new Mosaic().mosaico(imagen, 80, 80);
} catch (IOException ie) {
System.err.println("I/O Error");
ie.printStackTrace(System.err);
}
}
});
openButton.setLayoutX(300);
openButton.setLayoutY(350);
choiceBox.setLayoutX(430);
choiceBox.setLayoutY(350);
stac.getChildren().addAll(openButton, choiceBox);
stage.setScene(new Scene(stac, 800, 400));
stage.show();
}
public static void main(String[] args) {
Application.launch(args);
}
}
I am not sure what is the exact issue you are facing. Firstly FileChooser is not a Button. It is a helper class to interact with ToolKit to open the OS specific file chooser and return the results. And obvisously, it will no keep record of the returned results.
It is your duty to keep a reference of the retrieved file. This can be done in "N" number of ways. As you question focuses on get getting the value from the open button, I would suggest the below approach.
openButton.setOnAction(e -> {
File file = fileChooser.showOpenDialog(stage);
openButton.getProperties().put("FILE_LOCATION", file.getAbsolutePath());
...
});
choiceBox.setOnAction(event1 -> {
if (choiceBox.getValue() == "Mosaic") {
File file = new File(openButton.getProperties().get("FILE_LOCATION").toString());
}
});

Add text under buttons in Dialog

I was wondering if there is a way to display some text (like a info) under the buttons of a Dialog ? I've looked in many places, but even to align the buttons seems messy (from this post).
This is what I got for now. I just want the "Set my choice ..." text under the 2 buttons.
I looked for a function in the documentation that could help me display the way I want (like "getButtonBar()" or something like that) with no chance. Also creating a new ButtonBar seems a bit complicated for what I want to achieve.
I also tried to create a stage that could look like a dialog, but I needed the result incoming from clicking "Yes / No" in the same way the Dialogs do.
Is there any way to achieve want I want ? Or do I have to build it completely myself ? Thanks !
Just override the createButtonBar() method of DialogPane:
DialogPane pane = new DialogPane() {
#Override
public Node createButtonBar() {
VBox vbox = new VBox(5);
vbox.setAlignment(Pos.BOTTOM_RIGHT);
vbox.setPadding(new Insets(5));
vbox.getChildren().add(super.createButtonBar());
vbox.getChildren().add(new Label("Additional text"));
return vbox ;
}
};
Here's a SSCCE:
import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Node;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.ButtonType;
import javafx.scene.control.CheckBox;
import javafx.scene.control.Dialog;
import javafx.scene.control.DialogPane;
import javafx.scene.control.Label;
import javafx.scene.layout.StackPane;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
public class CustomDialogPaneTest extends Application {
#Override
public void start(Stage primaryStage) {
Button button = new Button("Show Dialog");
button.setOnAction(e -> {
DialogPane pane = new DialogPane() {
#Override
public Node createButtonBar() {
VBox vbox = new VBox(5);
vbox.setAlignment(Pos.BOTTOM_RIGHT);
vbox.setPadding(new Insets(5));
vbox.getChildren().add(super.createButtonBar());
vbox.getChildren().add(new Label("Additional text"));
return vbox ;
}
};
CheckBox checkBox = new CheckBox("A check box");
pane.setContent(checkBox);
pane.setHeaderText("The header");
pane.getButtonTypes().addAll(ButtonType.YES, ButtonType.NO);
Dialog<ButtonType> dialog = new Dialog<>();
dialog.setDialogPane(pane);
dialog.showAndWait().ifPresent(System.out::println);
});
StackPane root = new StackPane(button);
root.setPadding(new Insets(20));
primaryStage.setScene(new Scene(root));
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}
}

How can a dynamically generated JavaFX scene be changed in a single stage?

I'm currently working on a project requiring me to switch back and forward between scenes. I have already written some code for it but it isn't as elegant as I wanted to be, especially as there is few flickers when I switch between them and sometimes even the buttons that I have generated simply disappear only to appear once again when yet another scene has been generated. Moreover, the layout I'm using for my application isn't really fixed and I think that using FXML might be not suitable for what I'm doing.
Thank you.
This is what I'm using to change between scenes:
void changeScene(Stage stage,Scene scene){
stage.setScene(scene);
primaryStage.setFullScreen(true);
}
I assume by "switching between scenes" you mean that you want to change the entire content of the existing window.
There are two (very) slightly different ways you can do this. Either create a new Scene and pass it to the Stage's setScene(...) method. Or create the Parent that is the root of the new UI (either by FXML or otherwise), and pass it to the existing Scene's setRoot(...) method. There's no real advantage that I can see of one over the other.
Here's a minimal implementation of the second option. The UI is irrelevant to the question: the important parts are the event handlers for the "Login" button (which switches from the login scene to the main scene) and the "Logout" button (which switches back).
import java.util.stream.IntStream;
import javafx.application.Application;
import javafx.beans.binding.Bindings;
import javafx.beans.property.IntegerProperty;
import javafx.beans.property.SimpleIntegerProperty;
import javafx.geometry.HPos;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.ListView;
import javafx.scene.control.SplitPane;
import javafx.scene.control.TextField;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.ColumnConstraints;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.Priority;
import javafx.scene.text.Font;
import javafx.scene.text.FontWeight;
import javafx.stage.Stage;
public class MinimalSceneSwitchingExample extends Application {
#Override
public void start(Stage primaryStage) {
LoginView loginView = new LoginView();
Scene scene = new Scene(loginView.getView(), 400, 400);
primaryStage.setScene(scene);
primaryStage.show();
}
public static class LoginView {
private final IntegerProperty loginAttempts ;
private final GridPane view ;
public LoginView() {
view = new GridPane();
TextField usernameTF = new TextField("user");
TextField passwordTF = new TextField("pass");
// Login button switches to main view:
Button loginButton = new Button("Login");
loginButton.setOnAction(event -> {
if (usernameTF.getText().equalsIgnoreCase("user")
&& passwordTF.getText().equalsIgnoreCase("pass")) {
// *** Switch to main view: ***
Parent mainView = new MainView().getView();
view.getScene().setRoot(mainView);
} else {
loginAttempts.set(loginAttempts.get()+1);
}
});
// just set up login UI... irrelevant to this example:
loginAttempts = new SimpleIntegerProperty();
usernameTF.setPromptText("Hint: user");
passwordTF.setPromptText("Hint: pass");
view.addRow(0, new Label("Username:"), usernameTF);
view.addRow(1, new Label("Password:"), passwordTF);
Label loginErrorMessage = new Label();
loginErrorMessage.textProperty().bind(
Bindings.when(loginAttempts.isEqualTo(0))
.then("")
.otherwise(Bindings.format("Login incorrect (Attempts: %d)",
loginAttempts)));
view.add(loginErrorMessage, 0, 2, 2, 1);
view.add(loginButton, 0, 3, 2, 1);
ColumnConstraints leftCol = new ColumnConstraints();
leftCol.setHgrow(Priority.NEVER);
leftCol.setHalignment(HPos.RIGHT);
ColumnConstraints rightCol = new ColumnConstraints();
rightCol.setHgrow(Priority.ALWAYS);
rightCol.setHalignment(HPos.LEFT);
view.getColumnConstraints().addAll(leftCol, rightCol);
GridPane.setHalignment(loginErrorMessage, HPos.CENTER);
GridPane.setHalignment(loginButton, HPos.CENTER);
view.setHgap(10);
view.setVgap(16);
view.setAlignment(Pos.CENTER);
}
public Parent getView() {
return view ;
}
}
public static class MainView {
private BorderPane view ;
public MainView() {
view = new BorderPane();
// *** logout button switches back to a login view: ***
Button logoutButton = new Button("Log out");
logoutButton.setOnAction(event ->
view.getScene().setRoot(new LoginView().getView()));
// Arbitrary UI, irrelevant to this example:
SplitPane splitPane = new SplitPane();
ListView<String> listView = new ListView<>();
IntStream.rangeClosed(1, 10)
.mapToObj(Integer::toString)
.map("Item "::concat)
.forEach(listView.getItems()::add);
Label bigLabel = new Label();
bigLabel.textProperty().bind(
listView.getSelectionModel().selectedItemProperty());
bigLabel.setFont(Font.font("Verdana", FontWeight.BOLD, 18));
BorderPane.setAlignment(bigLabel, Pos.CENTER);
BorderPane.setMargin(bigLabel, new Insets(10));
Label details = new Label();
details.textProperty().bind(
Bindings.when(
listView.getSelectionModel().selectedItemProperty().isNull())
.then("")
.otherwise(Bindings.format("This is where you would display "
+ "all sorts of details about %1$s. "
+ "If %1$s were really a model object, you "
+ "might have a GridPane displaying all its "
+ "properties, for example.",
listView.getSelectionModel().selectedItemProperty())));
details.setWrapText(true);
BorderPane detailsPane = new BorderPane(details, bigLabel, null, null, null);
splitPane.getItems().addAll(listView, detailsPane);
view.setCenter(splitPane);
view.setBottom(logoutButton);
BorderPane.setAlignment(logoutButton, Pos.CENTER);
BorderPane.setMargin(logoutButton, new Insets(8));
BorderPane.setMargin(splitPane, new Insets(16));
}
public Parent getView() {
return view ;
}
}
public static void main(String[] args) {
launch(args);
}
}

JavaFX, text won't display in TextArea

I have the majority of the program done, the only problem is getting the numbers to display in the TextArea. Write a program that lets the user enter numbers from a graphical user interface and displays them in a text area. Use a LinkedList to store the numbers. Don't duplicate numbers. Add sort, shuffle, reverse to sort the list.
package storedInLinkedList;
import java.util.Collections;
import java.util.LinkedList;
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.geometry.Orientation;
import javafx.geometry.Pos;
import javafx.scene.layout.HBox;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
import javafx.scene.control.Label;
import javafx.scene.control.TextArea;
import javafx.scene.control.TextField;
import javafx.scene.layout.BorderPane;
import javafx.scene.control.ScrollPane;
public class StoredInLinkedList extends Application{
TextField txt = new TextField();
TextArea tArea = new TextArea();
Label message = new Label("Enter a Number: ");
Button sort = new Button("Sort");
Button shuffle = new Button("Shuffle");
Button reverse = new Button("Reverse");
private LinkedList<Integer> list = new LinkedList<>();
#Override
public void start(Stage primaryStage){
BorderPane bPane = new BorderPane();
txt.setAlignment(Pos.TOP_RIGHT);
bPane.setCenter(txt);
bPane.setBottom(tArea);
HBox hBox = new HBox(message, txt);
bPane.setTop(hBox);
HBox buttons = new HBox(10);
buttons.getChildren().addAll(sort, shuffle, reverse);
bPane.setBottom(buttons);
buttons.setAlignment(Pos.CENTER);
VBox vBox = new VBox();
vBox.getChildren().addAll(hBox, tArea, buttons);
bPane.setCenter(new ScrollPane(tArea));
Scene scene = new Scene(vBox, 300,250);
primaryStage.setTitle("20.2_DSemmes");
primaryStage.setScene(scene);
primaryStage.show();
txt.setOnAction(e -> {
if(! list.contains(new Integer(txt.getText()))){
tArea.appendText(txt.getText() + " ");
list.add(new Integer(txt.getText()));
}//end if
});//end action
sort.setOnAction(e -> {
Collections.sort(list);
display();
});//end action
shuffle.setOnAction(e -> {
Collections.shuffle(list);
display();
});//end action
reverse.setOnAction(e -> {
Collections.reverse(list);
display();
});//end action
}//end stage
private void display() {
for (Integer i: list){
tArea.setText(null);
tArea.appendText(i + " ");
}//end for
}//end display
public static void main(String[] args) {
// TODO Auto-generated method stub
launch(args);
}//end main
}//end class
Put the textarea clearing code outside of for loop. Otherwise you are clearing the previously appended text, so textarea having only the last element of list:
private void display() {
tArea.setText(""); // clear text area
for (Integer i: list){
tArea.appendText(i + " ");
}//end for
}/

Resources