JavaFX 2.1 Change ScrollPane Scrollbar size


Question

I am trying to figure out how to change a scrollpanes scrollbar size to make it wider in javafx 2.1.

1
4
7/4/2012 5:52:20 PM

The ScrollBar width is based on the font size of the ScrollPane.

Set the font size of the ScrollPane to something big and (if needed) sent the font size of your the ScrollPane's content node back to something normal.

ScrollPane scrollPane = new ScrollPane();
scrollPane.setContent(content);
scrollPane.setStyle("-fx-font-size: 40px;");  // set the font size to something big.
content.setStyle("-fx-font-size: 11px;");     // reset the region's font size to the default.

Here is a complete executable example based on my answer to a previous forum question on the same topic.

import javafx.application.Application;
import javafx.collections.*;
import javafx.scene.*;
import javafx.stage.Stage;
import javafx.scene.chart.*;
import javafx.scene.control.ScrollPane;
import javafx.scene.layout.Region;

public class BigScrollBars extends Application {
  @Override public void start(Stage stage) {
    // create a chart.
    ObservableList<PieChart.Data> pieChartData =
      FXCollections.observableArrayList(
        new PieChart.Data("Grapefruit", 13),
        new PieChart.Data("Oranges", 25),
        new PieChart.Data("Plums", 10),
        new PieChart.Data("Pears", 22),
        new PieChart.Data("Apples", 30)
      );
    final PieChart chart = new PieChart(pieChartData);
    chart.setTitle("Imported Fruits");
    chart.setMinSize(Region.USE_PREF_SIZE, Region.USE_PREF_SIZE);
    chart.setPrefSize(800,600);

    // create a scrollpane.
    ScrollPane scrollPane = new ScrollPane();
    scrollPane.setContent(chart);
    scrollPane.setStyle("-fx-font-size: 40px;");  // set the font size to something big.
    chart.setStyle("-fx-font-size: 11px;");       // reset the region's font size to the default.

    // show the scene.
    stage.setScene(new Scene(scrollPane, 400, 300));
    stage.show();
  }

  public static void main(String[] args) { launch(args); }
}
3
7/5/2012 8:29:35 PM

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