How to change the value of a color picker?

Question

Hi *,
I am currently working on a small project and I would like to use the colorpicker. When I initialize the colorpicker the, the widget is updated and shows the correct color, but when I try to change the value at runtime, nothing happens. Did I miss something?
Many thanks
package javafx.tests.colorpicker;
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.ColorPicker;
import javafx.scene.layout.StackPane;
import javafx.scene.layout.VBox;
import javafx.scene.paint.Color;
import javafx.stage.Stage;
public class ColorPickerChangeColor extends Application {
     public static void main(String[] args) {
          Application.launch(args);
     @Override
     public void start(Stage stage) throws Exception {
          VBox vbox = new VBox();
          vbox.setPadding(new Insets(10));
          vbox.setSpacing(10);
          Button button = new Button("Press me.");
          final ColorPicker colorpicker = new ColorPicker(Color.BLUE);
          button.setOnAction(new EventHandler<ActionEvent>() {
               @Override
               public void handle(ActionEvent arg0) {
                    colorpicker.setValue(Color.YELLOW);
                    System.out.println("Set color of the picker to yellow.");
          vbox.getChildren().add(colorpicker);
          vbox.getChildren().add(button);
          StackPane root = new StackPane();
          root.getChildren().add(vbox);
          stage.setTitle("ColorPicker");
          Scene scene = new Scene(root, 200, 200);
          stage.setScene(scene);
          stage.show();
}Edited by: 963445 on Jan 3, 2013 12:23 PM

Answer 1

Yeah, it's a known bug:
http://javafx-jira.kenai.com/browse/RT-22538 "[ColorPicker] changing color using setValue() ... is not reflected by rectangle and text on control."
In fact, there are 34 known ColorPicker bugs:
http://javafx-jira.kenai.com/secure/IssueNavigator.jspa?reset=true&jqlQuery=%28summary+%7E+colorpicker+OR+description+%7E+colorpicker+OR+comment+%7E+colorpicker%29+AND+issuetype+%3D+Bug+AND+status+in+%28Open%2C+%22In+Progress%22%2C+New%29