I have the last version of java(8_40) and javaFX.
I have a checkbox with 10 items.
I compile and run the program.
If i move the program window to the bottom of the monitor screen, the dropdown list go out from the monitor screen. It is impossible to click the items out the screen.
Instead, if I try to do the same layout with scenes builder 2.0, click on preview, the dropdown is moved automatically up for not exit the screen.
Why with scenes builder is properly displayed, instead with "compile and run" not?
The problem is the same that if I do graphics via code is that if I use the files fxml.
I put below a small program example that gives me this error:
Component CustomControl.java
public class CustomControl extends VBox {
public CustomControl() {
ComboBox<String> asd = new ComboBox<String>();
ObservableList<String> data = FXCollections.observableArrayList();
asd.setItems(data);
data.add("1");
data.add("2");
data.add("3");
data.add("4");
data.add("5");
data.add("6");
data.add("7");
data.add("8");
data.add("9");
data.add("10");
getChildren().add(asd);
}
}
Main.java
public class CustomControlExample extends Application {
public static void main(String[] args) {
launch(args);
}
String address = " ";
#Override public void start(Stage stage) {
stage.setTitle("ComboBoxSample");
Scene scene = new Scene(new CustomControl());
stage.setScene(scene);
stage.show();
}
}
EDIT:
Screen-shot on the left the pop-up go out of the screen border (eclipse)
While, on the right the pop-up is automatically moved (Scene builder)
See this image:
It is easy to solve, just change the visible row count.
Related
my problem is the following:
I have a JavaFX application with a Button called "bindB";
Button bindB = new Button("None");
bindB.setOnAction(event -> {
bindB.setText("...");
BindKey.bindKey(scene, bindB);
});
with the text "None". Is this button pressed, his text first changes to "..."
and by then calling the method "BindKey.bindKey();", the text will change to the
name of the key, the user is pressing on his keyboard.
This is the code of the method "BindKey.bindKey();":
public static void bindKey(Scene scene, Button bindB){
scene.setOnKeyPressed(event -> {
bindB.setText(String.valueOf(event.getCode()));
});
}
As you can see, in the args of the method we give the button "bindB", so that the method knows
what button to change the name of, aswell as the current scene.
This code does work, but the problem is, that even after the button was
pressed, and its text has already be changed, the text still changes to the name of different
keys if you press them afterwards WITHOUT having to press the button a second time.
I thought that you had to end the "setOnAction" event by calling
event.consume();
but that didnt work...
So how do I make the buttons text only change, if the button has actually been pressed a second or third time?
Otherwise, the task which the button performs is toggled by EVERY key because technically
every key is the toggle key as the task reads the name of the button to know what key is for toggling.
Full code example:
Main class:
public class Main {
// Initialize GUI
public static void main(String[] args) {
GUI gui = new GUI();
gui.run();
}
}
GUI class:
public class GUI extends Application {
public void run() {
launch();
}
#Override
public void start(Stage window) throws Exception {
// When closing Window
window.setOnCloseRequest(event -> {
exitApplication(window);
});
// GridPane
GridPane grid = new GridPane();
grid.setPadding(new Insets(10, 10, 10,10));
grid.setVgap(15);
grid.setHgap(30);
// Scene
Scene scene = new Scene(grid, 200, 200);
window.setScene(scene);
// Bind Button
Button bindB = new Button("None");
GridPane.setConstraints(bindB, 1, 1);
bindB.setOnAction(event -> {
bindB.setText("...");
BindKey.bindKey(scene, bindB);
});
// Add to Grid
grid.getChildren().addAll(bindB);
// Show Window
window.show();
}
// Provide a clean exit
private void exitApplication(Stage window){
window.close();
Platform.exit();
System.exit(0);
}
}
BindKey class:
public class BindKey {
// Changes Buttons text
public static void bindKey(Scene scene, Button bindB){
scene.setOnKeyPressed(event -> {
bindB.setText(String.valueOf(event.getCode()));
});
}
}
I am not to 100% sure if this is the problem, but I think the only thing you have to do is the following:
scene.setOnKeyPressed(event -> {
bindB.setText(String.valueOf(event.getCode()));
scene.setOnKeyPressed(null);
});
}
You just have to remove the Key-Listener from the scene after you set the text. Because otherwise it will listen for keys the entire time.
I am completly lost atm. I have been working with scenebuilder and javaFX in the past but I am stuck like 5 hours now and I didnt get a step further. Let me explain:
I have a working java Eclipse Project, using maven dependencies
The Main is where I want to use JavaFX or load a fxml into
The programm takes many many VCC Files and extracts the data to put it all together in an excel
The programm works but I cant load a FXML file into the main or even show a pane in there
Now does my Java Main class has to extend Application? I tried both ways - doenst work.
Some example code:
public void start(Stage primaryStage) {
try {
bpmain = new BorderPane(FXMLLoader.load(new File("src\\fxml\\UserInterface.fxml").toURI().toURL()));
primaryStage.setScene(new Scene(bpmain));
primaryStage.show();
} catch (Exception e) {
e.printStackTrace();
}
}
or this (from original Docs)
public void start(Stage stage) {
Circle circ = new Circle(40, 40, 30);
Group root = new Group(circ);
Scene scene = new Scene(root, 400, 300);
stage.setTitle("My JavaFX Application");
stage.setScene(scene);
stage.show();
}
but this start method is just not getting called... where do I put that?
What my Programm should look like is pretty simple actually. I want a small UI Windows that lets you pick a Folder where the VCC data lives in and a OK Button that basically should run the Main method.
So a TextField that when its picked a Path in the Main gets replaced (filepath) and just a simple OK Button that says: yeah run the main - because the main works perfectly it is just that I cant show that ui and I dont know how to really connect it to the Main.java
Any help is appreciated - Ty
Option 1
public class Launch extends Application {
public static Stage stage = null;
#Override
public void start(Stage stage) throws Exception {
Parent root = FXMLLoader.load(getClass().getResource("/fxml/Main.fxml"));
Scene scene = new Scene(root);
stage.setScene(scene);
this.stage = stage;
stage.show();
}
public static void main(String[] args) {
launch(args);
}
}
Option 2:
public class SidebarController implements Initializable {
#Override
public void initialize(URL url, ResourceBundle rb) {
}
#FXML
void btnHome_OnMouseClicked(MouseEvent event) throws IOException {
BorderPane borderPane = (BorderPane) ((Node) event.getSource()).getScene().getRoot();
Parent sidebar = FXMLLoader.load(getClass().getResource("/fxml/ContentArea.fxml"));
borderPane.setCenter(sidebar);
}
}
The issue I'm having is that the mxGraph object does not load correctly on startup. It requires me to click a cell inside of it for it to appear, and even then it does not reveal the entire graph, just the cell that was clicked. In order to reveal all of it I have to refresh the graph via another control or drag a cell around the entire graph area.
When I initially developed this I was working with Java 8 and this was not an issue. This has only occurred since updating to Java 11 (OpenJDK). Everything else was kept the same when upgrading to 11, only the updated dependencies changed.
I am wrapping the mxGraphComponent inside of a SwingNode in order to place it inside of a JavaFX node. I've had issues in the past with Swing nodes inside JavaFX but I am creating all of the Swing components using the SwingUtilities.invokeLater() method. I am using the 3.9.8.1 version of JGraphX from Maven, but I have also tried the updated 4.0.0 from GitHub with no success.
Here's my MCVE:
public final class Main {
public static void main(final String[] args) {
Application.launch(JGraphExample.class);
}
}
public final class JGraphExample extends Application {
private mxGraph graph;
#Override
public void start(final Stage primaryStage) {
final SwingNode value = new SwingNode();
final BorderPane root = new BorderPane();
root.setCenter(value);
root.setBottom(createRefreshButton());
SwingUtilities.invokeLater(() -> value.setContent(buildGraphComponent()));
primaryStage.setWidth(500);
primaryStage.setHeight(500);
primaryStage.setScene(new Scene(root));
primaryStage.show();
}
private mxGraphComponent buildGraphComponent() {
graph = buildGraph();
return new mxGraphComponent(graph);
}
private mxGraph buildGraph() {
final mxGraph graph = new mxGraph();
graph.insertVertex(graph.getDefaultParent(), "x", "Hello", 100, 100, 100, 100);
return graph;
}
private Button createRefreshButton() {
final Button refresh = new Button("Refresh");
refresh.setOnAction(actionEvent -> graph.refresh());
return refresh;
}
}
Until clicking the refresh button the graph will not render correctly. This was not the case with Java 8 as it worked as intended. It seems the update to 11 has teased this issue out.
Has anyone come across this before or have any ideas? Thanks in advance.
I have tried searching for this many times with no luck. I am writing a software where I want the user to input their resolution before moving on to the main UI, as the main UI will change size based on the resolution given. How would I open a popup window without a button event handler and then proceed to the main application?
You can just open the popup window in your start() method:
public class MyApp extends Application {
#Override
public void start(Stage primaryStage) {
// make sure application doesn't exit when we close the dialog window:
Platform.setImplicitExit(false);
Stage popup = new Stage();
TextField resolutionField = new TextField();
// ... populate popup, etc...
popup.setOnHidden(() -> {
int resolution = Integer.parseInt(resolutionField.getText());
// now create main UI...
primaryStage.show();
});
popup.show();
}
}
I have a Webview (JavaFX 8) that load an article from Wikipedia.
I put a refresh button to allow a refresh, basically, it does another call to the load method of the webEngine of the WebView with the same URL. But about 50% of the time the article is never rendered. In this case, I can right-click on the web view to manually refresh, then it will be rendered successfully.
I tried to look at the LoadWorker state, it always says "SUCCEED"...
Below is a short runnable Test class that demonstrates my point.
public class Test1 extends Application {
#Override
public void start(Stage primaryStage) throws Exception {
final WebView webView = new WebView();
webView.getEngine()
.load("http://fr.wikipedia.org/wiki/Sp%C3%A9cial:Page_au_hasard");
Tab tab = new Tab("webView", webView);
TabPane tabPane = new TabPane(tab);
BorderPane borderPane = new BorderPane(tabPane);
Button buttonRefresh = new Button("Refresh");
buttonRefresh.setOnAction(new EventHandler<ActionEvent>() {
public void handle(ActionEvent event) {
webView.getEngine()
.load("http://fr.wikipedia.org/wiki/Sp%C3%A9cial:Page_au_hasard");
}
});
borderPane.setBottom(buttonRefresh);
Scene scene = new Scene(borderPane);
primaryStage.setScene(scene);
primaryStage.show();
}
public static void main (String[] args) {
launch(args);
}
}
Am I doing something wrong? Does anyone know where this problem might come from?
EDIT
I added a few lines to bypass the problem, I check the header in the DOM when the state of the loadWorker becomes SUCCESS. If it is empty, I reload. Now it (looks) 100% ok, but still I am very curious why it didn't simply work all the time first.
Some thoughts that may be useful
The link http://fr.wikipedia.org/wiki/Sp%C3%A9cial:Page_au_hasard redirects to a random article (that's why my refresh button can't use webView.getEngine.reload()).
Putting a ChangeListener on the stateProperty of the workLoader to call the reload method of webEngine actually works. Each page is rendered successfully, but already rendered page will also be re-rendered, which is terrible.