VBox theBox = new VBox();
Label theLabel = new Label ();
theBox.setAlignment(Pos.TOP_RIGHT);
VBox.getChildren().add(theLabel);
scene = new Scene(VBox, 1000, 1000);
stage.setScene(scene);
stage.show();
Having this in my class the vbox appears but the weird thing is it only centers vertically not in the x axis.
So if I do:
CENTER_RIGHT it will do the first but ignore the second. So unless I wrap my VBox in a HBox, I figured I cant achieve what I want.
Is there a reason why I cant position my VBox or what am I doing wrong?
I googled like crazy and couldnt find anything. I even went through the entire documentation.
Related
As the titles suggests. I'm quite new to JavaFX so it's a bit confusing but I'm trying to set the max width of a TextField. I tried the maxWidth() method but it does not seem to work. This is the relevant code.
TextField field = new TextField("Enter");
field.maxWidth(300);
StackPane root = new StackPane();
root.getChildren().add(field);
Scene scene = new Scene(root, 500, 250);
primaryStage.setScene(scene);
primaryStage.show();
Try
field.setMaxWidth(300);
For more info refer this.
I'm trying to increase the height of my HtmlEditior in a JavaFX application. If I change it with the preferedSize() Methode, the node rescales to the desired height but I can't enter text into the new space. Does anyone know where I've made a mistake?
Code:
VBox root = new VBox();
HTMLEditor editor = new HTMLEditor();
editor.setPrefHeight(1000);
root.getChildren().add(editor);
Scene scene = new Scene(root, 1200, 800);
primaryStage.setScene(scene);
primaryStage.show();
My current gui (external link to imgur)
In this picture, you can see a large white space. This is the area where I want to write text.
I'm trying to stop the users from being able to move an alert that pops up. I have found one option is to set the style to UNDECORATED to remove the border which they would click on to move the alert, but I personally think this looks very ugly.
Are there any other options?
I suggest going with StageStyle.UNDECORATED and adding any decoration you want inside.
Not having system decoration, in this case, is a benefit. Because people are used to standard controls (close button, moving by dragging title, etc) and by removing them you give a clear sign that you don't want this windows to be movable.
Small example:
Stage alert = new Stage(StageStyle.UNDECORATED);
alert.initModality(Modality.APPLICATION_MODAL);
VBox root = new VBox(30);
root.setStyle("-fx-background-color: antiquewhite");
root.setAlignment(Pos.CENTER);
root.setPadding(new Insets(25));
root.setBorder(new Border(new BorderStroke(Color.BLACK,
BorderStrokeStyle.SOLID, CornerRadii.EMPTY, BorderWidths.DEFAULT)));
Button btn = new Button("Got it!");
btn.setOnAction((e)-> {alert.close();});
Label label = new Label("Alert!");
label.setFont(Font.font("Verdana", 20));
root.getChildren().addAll(label, btn);
alert.setScene(new Scene(root, 200, 150));
which gives you next window:
I have a project that has a 2 text areas and few buttons. The root pane is a AnchorPane. when resizing the window to smaller window, all the elements start overlap. What methods can fix this? (IGNORE THE NAME OF MY anchorpane, i got lazy)
AnchorPane borderpane = new AnchorPane ();
TextArea user_list = new TextArea();
user_list.setPrefSize(150, 400);
TextArea messages = new TextArea();
messages.setPrefSize(350, 400);
TextField typebox = new TextField();
typebox.setPrefSize(425, 100);
// put a shape over a text, over a shape
StackPane send_container = new StackPane();
Rectangle send_box = new Rectangle(75, 25);
Label send_text = new Label("Send");
send_container.getChildren().add(send_box);
send_container.getChildren().add(send_text);
AnchorPane.setLeftAnchor(messages, 25.0);
AnchorPane.setTopAnchor(messages, 10.0);
AnchorPane.setRightAnchor(user_list, 25.0);
AnchorPane.setTopAnchor(user_list, 10.0);
AnchorPane.setBottomAnchor(typebox, 25.0);
AnchorPane.setLeftAnchor(typebox, 25.0);
AnchorPane.setBottomAnchor(send_container, 25.0);
AnchorPane.setRightAnchor(send_container, 25.0);
borderpane.getChildren().addAll(messages, user_list, typebox,send_container );
Scene scene = new Scene(borderpane, 600, 600);
primaryStage.setMaxHeight(600);
primaryStage.setMaxWidth(600);
primaryStage.setScene(scene);
primaryStage.setTitle("Welcome");
scene.getStylesheets().add(LoginWindow.class.getResource("Login.css").toExternalForm());
primaryStage.show();
You are hard-coding the locations and sizes of your controls. This means the controls cannot respond to changes in the size of their parent nodes.
Usually, you should not specify any heights or widths. Controls all have default preferred sizes, and all layouts respect those. Layouts also decide how child nodes will be resized in response to the user's resizing of a window.
Often, the layout of a window needs to be broken down into sub-layouts. In your case, you want one section that always resizes to fill the window (the user list and message section), with another section at the bottom (the typebox and Send button). A BorderPane is the ideal choice, since its center node always fills it. So the center of this main BorderPane would contain the user list and message area, while the bottom of this BorderPane would contain the typebox and the Send button.
You probably want the user to be able to horizontally resize both the user list and the messages, so I'd put them in a SplitPane, and make that SpiltPane the center of the main BorderPane.
You probably want the typebox and Send button to be in a separate child BorderPane, with the typebox as the center node, since you want the typebox to stretch and shrink, horizontally, when the user resizes the window.
So, to summarize:
user list and message area in a SplitPane
typebox and Send button in a BorderPane
parent BorderPane with user list/message section in the center, typebox/Send section on the bottom
The code for this is actually pretty short:
ListView user_list = new ListView();
TextArea messages = new TextArea();
messages.setPrefRowCount(12);
messages.setPrefColumnCount(30);
TextField typebox = new TextField();
typebox.setPrefColumnCount(30);
Button send_text = new Button("Send");
send_text.disableProperty().bind(
typebox.lengthProperty().lessThan(1));
SplitPane top = new SplitPane(user_list, messages);
top.setDividerPosition(0, 1/3.0);
BorderPane bottom = new BorderPane();
bottom.setCenter(typebox);
bottom.setRight(send_text);
BorderPane.setMargin(typebox, new Insets(0, 12, 0, 0));
BorderPane main = new BorderPane();
main.setCenter(top);
main.setBottom(bottom);
BorderPane.setMargin(bottom, new Insets(12));
Scene scene = new Scene(main);
primaryStage.setScene(scene);
primaryStage.setTitle("Welcome");
scene.getStylesheets().add(LoginWindow.class.getResource("Login.css").toExternalForm());
primaryStage.show();
Notice that there are no hard-coded dimensions or coordinates (except the margins defined by the Insets objects). Every control has a preferred size based on its properties, such as a TextField's preferred column count.
The workings of the various layouts are well documented. I suggest reading about them in the javafx.scene.layout package.
(I'm guessing the user list should be a ListView, not a TextArea, since typical chat programs allow selection of one or more users. And I suspect your black Rectangle and send_text Label were intended to represent a disabled Button.)
Use a pane other than a Anchor Pane. It's for absolute positioning. Try a stack pane or simple VBox.
I am using this format to place an image as a background picture.
final VBox mainroot = new VBox();
mainroot.getChildren().addAll(backbutton,heroship);
final StackPane mainstackPane = new StackPane();
mainstackPane.getChildren().addAll(iv2,mainroot);
final HBox hbox = new HBox(mainstackPane);
iv2 is my image iteself, created like this
final Image imagegame = new Image(bcolor,width,height, false, false);
ImageView iv2 = new ImageView();
iv2.setImage(imagegame);
iv2.setPreserveRatio(true);
iv2.setFitWidth(width);
iv2.setFitHeight(height);
As well, I am adding a set amount of Labels using an array and a for loop,
Label[] alienship = new Label[10];
for (int i=0;i<alienship.length;i++)
{
mainroot.getChildren().add(alienship[i]);
}
My problem is, every time I change the array of Labels size lets say from 10 to 20, the image itself shifts downwards and I would have to translate it back up to fit.
I have tried using both a VBox and an HBox but I am not able to see a difference in my result.
I have also tried to use .setFitWidth() and .setFitHeight() but nothing helped.
With Label[] alienship = new Label[10];
Result: http://puu.sh/eAihN/c5c7f38ef0.jpg
(In this case I would have used .setTranslate to allign it back up.
With Label[] alienship = new Label[20];
Result: http://puu.sh/eAiqz/3b4280b63b.jpg
What can I do to fix this issue and ensure it stays alligned no matter what size I set the array to?
Thanks.
Problem
The problem is not with the ImageView, but with the Layout/Container that you chose to add heroship and alienship.
VBox is a layout whose height depends on the no of children and height of each child. When the number of alienship increases the VBox height will increase to accommodate all the children.
Solution
You must consider a layout which can add any number of children, without any effect on the width and height of the container. Consider StackPane
Quick fix is to make the VBox as the parent of the StackPane. Add the Image and the space ships to the StackPane, then add the Button and the StackPane to your VBox. Finally adding the VBox to your HBox.
final StackPane mainstackPane = new StackPane();
mainstackPane.getChildren().addAll(iv2, heroship);
final VBox mainroot = new VBox();
mainroot.getChildren().addAll(backbutton, mainstackPane);
final HBox hbox = new HBox(mainroot);
Add all your alienships to the StackPane instead of adding them to the VBox
Label[] alienship = new Label[10];
for (int i=0;i<alienship.length;i++)
{
mainstackPane.getChildren().add(alienship[i]);
}