Display the ToolTip on the list of colors

Is it possible to display a ToolTip to display the name of the color?

http://S10.postimg.org/94rd93scp/Z034.PNG

Here is my code for the ComboBox color rendering

import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.scene.Scene;
import javafx.scene.control.ComboBox;
import javafx.scene.control.ContentDisplay;
import javafx.scene.control.ListCell;
import javafx.scene.control.ListView;
import javafx.scene.layout.StackPane;
import javafx.scene.paint.Color;
import javafx.scene.shape.Rectangle;
import javafx.stage.Stage;
import javafx.util.Callback;


public class ProvaComboRendering extends Application {
   
    @Override
    public void start(Stage primaryStage) {
       
       
        StackPane root = new StackPane();
        ComboBox<String> cb = new ComboBox<String>();
       
        cb.setPrefSize(150, 20);
        root.getChildren().add(cb);
       
       
        Scene scene = new Scene(root, 300, 250);
       
        primaryStage.setScene(scene);
        primaryStage.show();

    ObservableList<String> data = FXCollections.observableArrayList(
            "chocolate", "salmon", "gold", "coral", "darkorchid",
            "darkgoldenrod", "lightsalmon", "black", "rosybrown", "blue",
            "blueviolet", "brown");
     
      cb.setItems(data);
     
      Callback<ListView<String>, ListCell<String>> factory = new Callback<ListView<String>, ListCell<String>>(){
          @Override
          public ListCell<String> call(ListView<String> list){
              return new ColorRectCell();
          }
      };
     
      cb.setCellFactory(factory);
      cb.setButtonCell(factory.call(null));
     
    }
      static class ColorRectCell extends ListCell<String>{
          @Override
          public void updateItem(String item, boolean empty){
              super.updateItem(item, empty);
              Rectangle rect = new Rectangle(120,13);
              rect.setStroke(Color.BLACK);
              if(item != null){
                  rect.setFill(Color.web(item));
                  setGraphic(rect);
          }
        }
      }  

    public static void main(String[] args) {
        launch(args);
    }        
}

Just add

setTooltip (new Tooltip (item));

in your updateItem method (...).

Tags: Java

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