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How can I customize the appearance of a JavaFX ProgressBar using CSS?

Barbara Streisand
Barbara StreisandOriginal
2024-11-11 08:32:02484browse

How can I customize the appearance of a JavaFX ProgressBar using CSS?

Customizing the JavaFX ProgressBar Component with CSS

Styling the ProgressBar component in JavaFX requires knowledge of its CSS classes and the specific CSS properties that affect its appearance. This guide will provide you with the necessary information to customize the color, background, and add custom text nodes to your ProgressBar.

1. Colorizing the Progress Bar
This can be done through the .bar class:

.progress-bar .bar {
  -fx-background-color: #yourColor;
}

2. Setting the Background Color
Style the .track class:

.progress-bar .track {
  -fx-background-color: #yourBackground;
}

3. Adding a Custom Text Node
Create a custom JavaFX Node that represents the text you want to display on the ProgressBar. Then, in your CSS, use the .knob class to position it:

.knob {
  -fx-text-fill: white;
  -fx-background-color: black;
  -fx-alignment: center;
}

4. Changing the Progress Bar's Height
Use the .bar class to set the padding:

.progress-bar .bar {
  -fx-padding: 1px; 
  -fx-background-insets: 0; 
}

5. Referencing the Default CSS
Review the default JavaFX style sheets to understand the existing CSS classes and properties:

  • Modena.css (Java 8)
  • Caspian.css (Java 7)

Additional Customization Options

  • For dynamic colorization based on progress: Refer to "JavaFX ProgressBar: how to change bar color?".
  • For a barbershop pole gradient: Check "ProgressBar Animated Javafx".
  • For placing a string on the ProgressBar: See "Draw a String onto a ProgressBar, like JProgressBar?".

Remember, the syntax and options may vary depending on the JavaFX version you are using (e.g., Java 7 vs Java 8).

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