I have an internal jfxtra window. On clicking a button, I want to bring it forward.
The code that I have tried :
window w = new window("mdi win");
private Stage primaryStage;
private BorderPane rootLayout;
...
public void win() {
Parent bla = FXMLLoader.load(getClass().getResource("bla.fxml"));
w.getContentPane().getChildren().add(bla);
rootLayout.getChildren().add(w);
}
private void wfront(ActionEvent event) throws Exception {
w.isMoveToFront(); // is not?
}
How to make it possible?
So you made me curious and I went through the JFXtras docs. I came to know that Window in Jfxtras extends Control. So there is a method called toFront which can be fired on it. To show this I have created a sample for you.
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;
import jfxtras.scene.control.window.Window;
public class NewWindow extends Application {
#Override
public void start(Stage primaryStage) throws Exception {
StackPane stackPane = new StackPane();
Button button = new Button("Click Me to show Window !");
Window window = new Window("Cick Me to bring me to front");
button.setOnAction(new EventHandler<ActionEvent>() {
#Override
public void handle(ActionEvent event) {
window.toFront();
window.setTitle("I am on the Front");
}
});
window.setPrefSize(200, 200);
stackPane.getChildren().addAll(window, button);
Scene scene = new Scene(stackPane, 500, 500);
primaryStage.setScene(scene);
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}
}
Let me know, if you are looking for something else !
Related
I'm building a JavaFX application with multiple Scenes. I have a problem with scope of variable when changing scenes within setOnAction event. This is my code:
Stage myStage;
public Scene logInScene(){
... all the buttons / textFields
createAccountButton.setOnAction(new EventHandler<ActionEvent>(){
public void handle(ActionEvent t){
**this.getStage().allScene(createAccountPane1);**
}
}
}
public Stage getStage(){
return this.myStage;
}
public void allScene(Pane p){
this.myStage.setScene(p);
}
I'm getting an error within the setOnAction function. "Cannot Find Symbol" getStage(). I know this must be a scope problem and it doesn't recognize any variables / functions outside of that scope. How do I make it so that I can change within? I've tried passing through the variable but that will just make my code messy and I wish there was a simpler way. Thanks guys!
Your code works as long as you keep consistency:
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.TextField;
import javafx.scene.layout.AnchorPane;
import javafx.scene.layout.Pane;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
public class Test extends Application{
private Stage stage;
#Override
public void start(Stage primaryStage) throws Exception {
stage = primaryStage;
Scene scene = logInScene();
primaryStage.setScene(scene);
primaryStage.show();
}
public Scene logInScene(){
Pane root = new Pane();
Button createAccountButton = new Button("create account");
createAccountButton.setOnAction(new EventHandler<ActionEvent>(){
public void handle(ActionEvent t){
stage.setScene(CreateAccountScene());
}
});
root.getChildren().add(createAccountButton);
return new Scene(root);
}
protected Scene CreateAccountScene() {
VBox root = new VBox();
Label userLabel = new Label("Insert the username:");
final TextField userField = new TextField();
Button createAccountButton = new Button("create account");
createAccountButton.setOnAction(new EventHandler<ActionEvent>(){
public void handle(ActionEvent t){
System.out.println("Account for user " + userField.getText() + " was created succesfully");
}
});
root.getChildren().addAll(userLabel,userField,createAccountButton);
return new Scene(root);
}
public static void main(String[] args) {
launch(args);
}
}
This question has already been solved, but I think it's worth clarifying that your line fails because the this keyword refers to the anonymous EventHandler you are implementing. In Java, you reference the outer class instance with OuterClass.this. So OuterClass.this.getStage().allScene(createAccountPane1); will work.
If you are looking for a prettier solution, some coders like to define a local variable that points to the outer class instance:
final OuterClass self = this;
createAccountButton.setOnAction(new EventHandler<ActionEvent>(){
public void handle(ActionEvent t){
self.getStage().allScene(createAccountPane1);
}
}
I'm building a JavaFX application with multiple Scenes. I have a problem with scope of variable when changing scenes within setOnAction event. This is my code:
Stage myStage;
public Scene logInScene(){
... all the buttons / textFields
createAccountButton.setOnAction(new EventHandler<ActionEvent>(){
public void handle(ActionEvent t){
**this.getStage().allScene(createAccountPane1);**
}
}
}
public Stage getStage(){
return this.myStage;
}
public void allScene(Pane p){
this.myStage.setScene(p);
}
I'm getting an error within the setOnAction function. "Cannot Find Symbol" getStage(). I know this must be a scope problem and it doesn't recognize any variables / functions outside of that scope. How do I make it so that I can change within? I've tried passing through the variable but that will just make my code messy and I wish there was a simpler way. Thanks guys!
Your code works as long as you keep consistency:
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.TextField;
import javafx.scene.layout.AnchorPane;
import javafx.scene.layout.Pane;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
public class Test extends Application{
private Stage stage;
#Override
public void start(Stage primaryStage) throws Exception {
stage = primaryStage;
Scene scene = logInScene();
primaryStage.setScene(scene);
primaryStage.show();
}
public Scene logInScene(){
Pane root = new Pane();
Button createAccountButton = new Button("create account");
createAccountButton.setOnAction(new EventHandler<ActionEvent>(){
public void handle(ActionEvent t){
stage.setScene(CreateAccountScene());
}
});
root.getChildren().add(createAccountButton);
return new Scene(root);
}
protected Scene CreateAccountScene() {
VBox root = new VBox();
Label userLabel = new Label("Insert the username:");
final TextField userField = new TextField();
Button createAccountButton = new Button("create account");
createAccountButton.setOnAction(new EventHandler<ActionEvent>(){
public void handle(ActionEvent t){
System.out.println("Account for user " + userField.getText() + " was created succesfully");
}
});
root.getChildren().addAll(userLabel,userField,createAccountButton);
return new Scene(root);
}
public static void main(String[] args) {
launch(args);
}
}
This question has already been solved, but I think it's worth clarifying that your line fails because the this keyword refers to the anonymous EventHandler you are implementing. In Java, you reference the outer class instance with OuterClass.this. So OuterClass.this.getStage().allScene(createAccountPane1); will work.
If you are looking for a prettier solution, some coders like to define a local variable that points to the outer class instance:
final OuterClass self = this;
createAccountButton.setOnAction(new EventHandler<ActionEvent>(){
public void handle(ActionEvent t){
self.getStage().allScene(createAccountPane1);
}
}
I have 2 screens in application. First screen(MainController class) which opens with running application from Eclipse.
And second screen(SecondController class) which opens on button located in first screen.
How can I make some kind of 'Back' button in second screen which will show back first screen?
I'm creating the visual part of the application in JavaFX Scene Builder if it matters.
Here is a small example, containing to screens, to show how you can achieve what you are looking for
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.VBox;
import javafx.scene.text.Text;
import javafx.stage.Stage;
public class TwoScreensWithInterchange extends Application {
#Override
public void start(Stage stage) throws Exception {
Scene scene = new Scene(loadScreenOne(), 200, 200);
stage.setScene(scene);
stage.show();
}
public static void main(String[] args) {
launch(args);
}
public VBox loadScreenOne()
{
VBox vBox = new VBox();
vBox.setAlignment(Pos.CENTER);
final Button button = new Button("Switch Screen");
button.setOnAction(new EventHandler<ActionEvent>() {
#Override
public void handle(ActionEvent arg0) {
button.getScene().setRoot(loadScreenTwo());
}
});
Text text = new Text("Screen One");
vBox.getChildren().addAll(text, button);
vBox.setStyle("-fx-background-color: #8fbc8f;");
return vBox;
}
public VBox loadScreenTwo()
{
VBox vBox = new VBox();
vBox.setAlignment(Pos.CENTER);
final Button button = new Button("Back");
button.setOnAction(new EventHandler<ActionEvent>() {
#Override
public void handle(ActionEvent arg0) {
button.getScene().setRoot(loadScreenOne());
}
});
Text text = new Text("Screen Two");
vBox.getChildren().addAll(text, button);
return vBox;
}
}
I did implement a popup window in a new stage and I'm now trying to close it, no matter where I click (excluding the popup itself). This works just fine. Although the popup windows disappears when I click on another element (e.g. a button) on the background, I'd still like to get the event for the button. Any suggestions on how to achieve this? I put together a short example of the situation.
package application;
import javafx.application.Application;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.event.Event;
import javafx.event.EventHandler;
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.Pane;
public class Main extends Application {
#Override
public void start(Stage primaryStage) {
try {
BorderPane root = new BorderPane();
Scene scene = new Scene(root, 400, 400);
scene.getStylesheets().add(getClass().getResource("application.css").toExternalForm());
primaryStage.setScene(scene);
// the popup
Pane p = new Pane();
p.setPrefSize(100, 100);
p.setStyle("-fx-background-color: #660066");
final Stage popUp = new Stage();
Scene popUpScene = new Scene(p);
popUp.setScene(popUpScene);
Button btnShow = new Button("Show popUp");
root.setCenter(btnShow);
btnShow.setOnMouseClicked(new EventHandler<Event>() {
#Override
public void handle(Event event) {
ChangeListener stageFocusListener = new ChangeListener<Boolean>() {
#Override
public void changed(ObservableValue<? extends Boolean> arg0, Boolean oldPropertyValue, Boolean newPropertyValue) {
if (!newPropertyValue) {
popUp.hide();
}
}
};
popUp.focusedProperty().addListener(stageFocusListener);
popUp.show();
}
});
Button btnTest = new Button("test");
root.setRight(btnTest);
btnTest.setOnMouseClicked(new EventHandler<Event>() {
#Override
public void handle(Event event) {
System.out.println("Button test clicked");
}
});
primaryStage.show();
} catch (Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
launch(args);
}
}
You can put the hiding event to the queue without disturbing the event handling procedure of the button
if (!newPropertyValue) {
Platform.runLater(new Runnable() {
#Override
public void run() {
popUp.hide();
}
});
}
I am digging the documentation to see if there's a remove method, I just get this link whenever I google
http://www.coderanch.com/t/580998/JavaFX/java/remove-node
there's a simple remove option
Eg : .getChildren().remove(object)
It does not seem to work for me !
The code which you've provided works fine with me.
Add circle with ALT+Click, and remove them by simply clicking on them.
The reason I've used the ALT key for adding the circles is because in the below code, both the scene and the circles handle mouse clicks. Thus, the code has to know from where the event is coming from. This is just an example, of course.
import javafx.application.Application;
import javafx.event.EventHandler;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.input.MouseEvent;
import javafx.scene.paint.Color;
import javafx.scene.shape.Circle;
import javafx.stage.Stage;
public class ChangeListenerSample extends Application {
public static void main(final String[] args) {
launch(args);
}
#Override
public void start(final Stage primaryStage) throws Exception {
final Group root = new Group();
primaryStage.setResizable(false);
final Scene scene = new Scene(root, 400,80);
primaryStage.setScene(scene);
scene.addEventHandler(MouseEvent.MOUSE_CLICKED, new EventHandler<MouseEvent>() {
#Override public void handle(final MouseEvent event)
{
if (!event.isAltDown())
return;
final Circle circle = new Circle(event.getSceneX(), event.getSceneY(),30);
circle.setFill(Color.YELLOW);
root.getChildren().add(circle);
circle.addEventHandler(MouseEvent.MOUSE_CLICKED, new EventHandler<MouseEvent>() {
#Override public void handle(final MouseEvent arg0)
{
root.getChildren().remove(circle);
}
});
}
});
primaryStage.show();
}
}