FXML Layout Editing Without SceneBuilder | Together Java | Page 1

calm ravineBOT Aug 5, 2024, 9:24 AM

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@hoary burrow has a question:

masem_drocsid

How do you guys edit favafx layout without scenebuilder? I try to do anything at all and it doesnt work

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<@&987246399047479336> please have a look, thanks.

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Here is an AI assisted attempt to answer your question 🤖. Maybe it helps! In any case, a human is on the way 👍. To continue talking to the AI, you can use </chatgpt:1108714622413963314>.

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TJ-Bot

How do you guys edit favafx layout without scenebuilder? I try to do anything at all and it doesnt work

If you're having trouble editing FXML layouts without SceneBuilder, there are a few alternative approaches you can try.

One option is to directly edit the FXML file using a text editor like Visual Studio Code or IntelliJ IDEA. This allows you to manually make changes to the layout structure and properties in the XML code.

Another approach is to use JavaFX's built-in tools, such as the Scene, Pane, and Control classes, to programmatically create and modify your layout. By dynamically adding and configuring nodes in your Java code, you can customize the layout without relying on an external tool like SceneBuilder.

Additionally, you can leverage CSS styling to customize the appearance of your JavaFX application. By defining stylesheets and applying them to your FXML elements, you can achieve a visually appealing design without using SceneBuilder.

Overall, while SceneBuilder can be a helpful tool for visualizing and designing JavaFX layouts, it's not essential for creating or editing FXML files. With some practice and experimentation, you can successfully manipulate FXML layouts directly or programmatically in your Java code.

fathom snow Aug 5, 2024, 9:25 AM

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can u share details of ur process?

calm ravineBOT Aug 5, 2024, 9:25 AM

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Changed the category to JavaFX|Swing.

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<@&987246487241105418> please have a look, thanks.

hoary burrow Aug 5, 2024, 9:25 AM

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Sure 1 sec

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<right>
    <ListView fx:id="song_list">
    </ListView>
</right>

<bottom>
    <HBox fx:id="hbox_bottom">
        <Button fx:id="bb1"/>
        <Button fx:id="bb2"/>
        <Button fx:id="bb3"/>
        <Button fx:id="bb4"/>
        <Button fx:id="bb5"/>
        <Button fx:id="bb6"/>
        <Button fx:id="bb7"/>
    </HBox>
</bottom>

</BorderPane>

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a simple borderpane with a hbox at the bottom

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I do this to give it a height of 30% and nothing happens:
#hbox_bottom{
/*-fx-background-color: linear-gradient(from 0% 0% to 100% 100%, #FFFFFF, #101010);
*/
-fx-background-color: #ff7f00;
-fx-pref-height: 30%;
}

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it just sticks to whatever the height of the buttons in the hbox are

grizzled grotto Aug 5, 2024, 9:28 AM

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You should probably be making those particular changes in a stylesheet.

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You CAN do it in the FXML. But using a stylesheet is better.

hoary burrow Aug 5, 2024, 9:28 AM

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yeah thats in style.css file

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the #hbox_bottom code i sent

grizzled grotto Aug 5, 2024, 9:29 AM

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Oh then why do you have that # right there?

hoary burrow Aug 5, 2024, 9:29 AM

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the # represents the uniqe id of the hbox

grizzled grotto Aug 5, 2024, 9:29 AM

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Oh, referencing that specific id.

hoary burrow Aug 5, 2024, 9:29 AM

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yeah

grizzled grotto Aug 5, 2024, 9:32 AM

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Hmm.. I've never really done CSS changes for single IDed objects like that before.. Usually I'll make a change for every type of that object.. Maybe try using a separate style sheet for that one as well?.. One sec. I'm gonna read over your FXML again rq.

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It might have something to do with your BorderPane's constraints. I usually prefer AnchorPanes. They're very versatile.

hoary burrow Aug 5, 2024, 9:35 AM

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do you by chance have a anchor pane example where its seperated like this:

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how would you seperate into a top (with those 2 right/left) and bottom?

grizzled grotto Aug 5, 2024, 9:37 AM

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So in your case, you can actually use a 2x2 GridPane, which will allow you to define the individual row constraints to match those there.

hoary burrow Aug 5, 2024, 9:37 AM

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ok ill do that

grizzled grotto Aug 5, 2024, 9:37 AM

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For the bottom you just set that section/node to a columnSpan of 2.

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Yeah, check out GridPanes.

hoary burrow Aug 5, 2024, 9:38 AM

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tnx

grizzled grotto Aug 5, 2024, 9:38 AM

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Mhm.

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https://docs.oracle.com/javase/8/javafx/api/javafx/scene/layout/GridPane.html

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There's loads out there for the GridPanes. They're widely used.

calm ravineBOT Aug 5, 2024, 10:00 AM

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TJ-Bot

Why does adding padding to my buttons in hbox cause them to stretch the buttons instead of adding padding around them

When adding padding to buttons in an HBox in JavaFX, the padding is actually applied as part of the button's layout rather than as additional space around the button. This is because the default behavior of HBox is to stretch its children to fit the available space within the container.

To achieve the desired result of adding padding around the buttons without stretching them, you can use a combination of setting margins and insets on the buttons themselves. This can be done by creating a new Insets object with the desired padding values and then applying it to each button using setMargin() method.

Another approach is to wrap each button in a Region or Pane and set padding on those containers instead. This will allow you to control the spacing around each button while still maintaining their original size.

Overall, it's important to understand how layout containers like HBox work in JavaFX and how padding affects their children. By using insets, margins, or wrapping buttons in containers, you can achieve the desired padding effect without stretching the buttons themselves.

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TJ-Bot

How can i set a hbox to have center alignment (both x and y axis) (xfml css code please)

To center align an HBox in JavaFX using FXML and CSS, you can follow these steps:

In your FXML file, define the HBox element and set its alignment to center for both the x and y axes.

<HBox alignment="CENTER">
    <!-- Add your HBox content here -->
</HBox>

Create a CSS file for styling your JavaFX application. In the CSS file, add a style that centers the content of the HBox.

.hbox {
    -fx-alignment: center;
}

Link the CSS file to your FXML file by adding a stylesheet reference in the root element of your FXML file.

<?import javafx.scene.layout.HBox?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.text.Text?>

<HBox stylesheets="@yourStylesheet.css" xmlns:fx="http://javafx.com/fxml">
    <!-- Add your HBox content here -->
</HBox>

By following these steps, you should be able to center align an HBox both horizontally and vertically using FXML and CSS in JavaFX.

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TJ-Bot

How to add justify-center to hbox (fxml or css code)

To add justify-center to an HBox in JavaFX, you can achieve this by either using FXML or CSS code.

Using FXML:

<HBox alignment="CENTER">
    <!-- Add your content here -->
</HBox>

In this code snippet, setting the alignment attribute to CENTER will position the content of the HBox in the center horizontally.

Using CSS:

.hbox {
    -fx-alignment: center;
}

And then apply this CSS style to your HBox in your FXML file:

<HBox stylesheets="@yourStylesheet.css">
    <!-- Add your content here -->
</HBox>

Alternatively, you can apply the style directly to the HBox in your FXML file like this:

<HBox style="-fx-alignment: center;">
    <!-- Add your content here -->
</HBox>

These methods will help you center the content of an HBox either through FXML attributes or CSS styling. Feel free to choose the approach that suits your project best!

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TJ-Bot

What is the fxml version of justify-content: space-between

In JavaFX, the equivalent of justify-content: space-between in CSS is achieved using the HBox layout container along with setting the alignment property to Pos.BASELINE_LEFT.

Here's an example of how you can achieve this using FXML:

<HBox alignment="BASELINE_LEFT" spacing="10">
    <Button text="Button 1" />
    <Button text="Button 2" />
</HBox>

In this code snippet, we are using an HBox layout container to arrange two buttons horizontally with space between them. The spacing property is used to specify the gap between the buttons. By setting the alignment property to BASELINE_LEFT, the buttons will be aligned at their baseline and spaced evenly apart within the HBox.

This approach mimics the behavior of justify-content: space-between in CSS, where elements are evenly distributed along the main axis with space between them.

Using FXML allows you to describe your JavaFX UI layout in XML format, making it easier to manage and modify your UI components. By utilizing FXML along with layout containers like HBox, you can create responsive and visually appealing user interfaces in JavaFX.

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TJ-Bot

Please make the code in ypur previous message be dynamically spaced instead of spacing=10

In order to dynamically space the code in Java, you can use a loop to calculate the maximum length of each line and then adjust the spacing accordingly. Here's an example of how you can achieve this:

public class DynamicSpacing {
    public static void main(String[] args) {
        String[] lines = {
            "int x = 5;",
            "String name = \"John\";",
            "double pi = 3.14159;"
        };
        
        int maxLength = 0;
        for (String line : lines) {
            maxLength = Math.max(maxLength, line.length());
        }
        
        for (String line : lines) {
            int spacesToAdd = maxLength - line.length();
            System.out.print(line);
            
            for (int i = 0; i < spacesToAdd; i++) {
                System.out.print(" ");
            }
            
            System.out.println(";");
        }
    }
}

This code will calculate the maximum length of the lines provided in the lines array and then add the necessary number of spaces to dynamically space out each line. This way, regardless of the length of each line, they will all be aligned properly when printed.

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TJ-Bot

Please write me fxml hbox that has dynamically spaced alignment (so not spacing=10) same as flexbox's "justify-content: space-between"

In JavaFX, you can achieve a dynamically spaced alignment similar to flexbox's "justify-content: space-between" by using an HBox with custom spacing. Here's an example of how you can create an FXML file with an HBox that has dynamically spaced alignment:

<?import javafx.scene.layout.HBox?>
<?import javafx.scene.control.Button?>

<HBox xmlns:fx="http://javafx.com/fxml" spacing="${dynamicSpacing}">
    <Button text="Button 1"/>
    <Button text="Button 2"/>
    <Button text="Button 3"/>
</HBox>

In this example, we use the spacing attribute of the HBox to dynamically set the spacing between the buttons. To achieve "justify-content: space-between" behavior, you can set the dynamicSpacing value accordingly in your controller class.

Here's an example of how you can set the spacing dynamically in your controller class:

import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.layout.HBox;
import java.net.URL;
import java.util.ResourceBundle;

public class MyController implements Initializable {

    @FXML
    private HBox hbox;

    @Override
    public void initialize(URL location, ResourceBundle resources) {
        double dynamicSpacing = 10; // Set your desired spacing here
        hbox.setSpacing(dynamicSpacing);
    }
}

By setting the spacing property of the HBox dynamically in your controller class, you can achieve a layout similar to flexbox's "justify-content: space-between" in JavaFX.

hoary burrow Aug 5, 2024, 10:41 AM

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Lolz

grizzled grotto Aug 5, 2024, 3:05 PM

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No luck with the GridPane? @hoary burrow

hoary burrow Aug 5, 2024, 3:19 PM

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ohh i havent tryed it yet, i was going to but decided to first properly setup the bottom buttons because they will end up the same anyways. then got derailed by my fonts not loading and what not

grizzled grotto Aug 5, 2024, 3:21 PM

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Yeah I answered some of your other questions there, take a look.

hoary burrow Aug 5, 2024, 10:53 PM

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@grizzled grotto i got this, grid pane seems nice and conveniant, some parts are acting a bit funky though

#FXML Layout Editing Without SceneBuilder