I'm trying to style individual table cells in an JavaFX2 TableView (to indicate that a table cell value is changed, contains an error, etc). To achieve this, I have created a custom TableCell that sets the proper CSS class, based on it's content.
This works to some degree, but the problem is that I now lose all effects, the hover, the selection color gradient etc. (i.e. the pseudo classes).
How can I style a table cell using CSS, without requiring re-defining all the possible combinations of pseudo-classes?
I've read this answer but the solution does not work for me. If I set -fx-control-inner-background to the background color I want, I get hover and selection color like I want, but the initial color is transparent, which is obviously not what I want (I have commented out the attempts in the CSS below, you can uncomment and try for yourself). If you can explain why, and provide a solution, I'd be happy to accept that.
I've also seen this answer, but I really don't want to crate duplicate definitions for all the pseudo-classes (besides, it only seems to work with row selection).
Below is an SSCCE that demonstrates the issue.
Screen shot (this looks like what I want, except the hover and selection doesn't work):
TableViewSample.java (based on Table View tutorial code):
import javafx.application.Application;
import javafx.beans.property.SimpleStringProperty;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.geometry.Insets;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.control.SelectionMode;
import javafx.scene.control.TableCell;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.scene.layout.VBox;
import javafx.scene.text.Font;
import javafx.stage.Stage;
import javafx.util.Callback;
public class TableViewSample extends Application {
public static final String CSS_ORIGINAL = "cell-renderer-original";
public static final String CSS_CHANGED = "cell-renderer-changed";
public static final String CSS_ERROR = "cell-renderer-error";
public static final String CSS_ERROR_AND_CHANGED = "cell-renderer-error-and-changed";
private TableView<Person> table = new TableView<>();
private final ObservableList<Person> data =
FXCollections.observableArrayList(
new Person("Jacob", "Smith", "jacob.smith@example.com"),
new Person("Isabella", "Johnson", "isabella.johnson@example.com"),
new Person("Ethan", "Williams", "ethan.williams@example.com"),
new Person("Emma", "Jones", "emma.jones@example.com"),
new Person("Michael", "Brown", "michael.brown@example.com")
);
public static void main(String[] args) {
launch(args);
}
@Override
public void start(Stage stage) {
Scene scene = new Scene(new Group());
stage.setTitle("Table View Sample");
stage.setWidth(450);
stage.setHeight(500);
Label label = new Label("Address Book");
label.setFont(new Font("Arial", 20));
table.setEditable(true);
// Cell selection only (I need this)
table.getSelectionModel().setCellSelectionEnabled(true);
table.getSelectionModel().setSelectionMode(SelectionMode.MULTIPLE);
TableColumn<Person, String> firstNameCol = new TableColumn<>("First Name");
firstNameCol.setMinWidth(100);
firstNameCol.setCellValueFactory(new PropertyValueFactory<Person, String>("firstName"));
TableColumn<Person, String> lastNameCol = new TableColumn<>("Last Name");
lastNameCol.setMinWidth(100);
lastNameCol.setCellValueFactory(new PropertyValueFactory<Person, String>("lastName"));
TableColumn<Person, String> emailCol = new TableColumn<>("Email");
emailCol.setMinWidth(200);
emailCol.setCellValueFactory(new PropertyValueFactory<Person, String>("email"));
// Install custom cell renderer
emailCol.setCellFactory(new Callback<TableColumn<Person, String>, TableCell<Person, String>>() {
@Override public TableCell<Person, String> call(final TableColumn<Person, String> personStringTableColumn) {
return new BackgroundTableCell();
}
});
table.setItems(data);
table.getColumns().addAll(firstNameCol, lastNameCol, emailCol);
VBox vbox = new VBox();
vbox.setSpacing(5);
vbox.setPadding(new Insets(10, 0, 0, 10));
vbox.getChildren().addAll(label, table);
((Group) scene.getRoot()).getChildren().addAll(vbox);
scene.getStylesheets().add(getClass().getResource("/my.css").toExternalForm());
stage.setScene(scene);
stage.show();
}
public static class Person {
private final SimpleStringProperty firstName;
private final SimpleStringProperty lastName;
private final SimpleStringProperty email;
private Person(String fName, String lName, String email) {
this.firstName = new SimpleStringProperty(fName);
this.lastName = new SimpleStringProperty(lName);
this.email = new SimpleStringProperty(email);
}
public String getFirstName() {
return firstName.get();
}
public void setFirstName(String fName) {
firstName.set(fName);
}
public String getLastName() {
return lastName.get();
}
public void setLastName(String fName) {
lastName.set(fName);
}
public String getEmail() {
return email.get();
}
public void setEmail(String fName) {
email.set(fName);
}
}
// My custom background cell renderer
private static class BackgroundTableCell extends TableCell<Person, String> {
@Override protected void updateItem(final String item, final boolean empty) {
super.updateItem(item, empty);
setText(empty ? "" : item);
getStyleClass().removeAll(CSS_ORIGINAL, CSS_CHANGED, CSS_ERROR, CSS_ERROR_AND_CHANGED);
updateStyles(empty ? null : item);
}
private void updateStyles(String item) {
if (item == null) {
return;
}
if (item.startsWith("i") || item.startsWith("j")) {
getStyleClass().add(CSS_CHANGED);
}
else if (item.startsWith("e")) {
getStyleClass().add(CSS_ERROR);
}
else if (item.startsWith("m")) {
getStyleClass().add(CSS_ERROR_AND_CHANGED);
}
}
}
}
my.css:
.cell-renderer-changed {
-fx-background-color: rgba(255, 248, 33, .4);
/*-fx-control-inner-background: rgb(255, 248, 33);*/
-fx-accent: derive(-fx-control-inner-background, -40%);
-fx-cell-hover-color: #cce3f4;
-fx-cell-focus-inner-border: #85b9de;
}
.cell-renderer-error {
-fx-background-color: rgba(255, 159, 160, .4);
/*-fx-control-inner-background: rgb(255, 159, 160);*/
-fx-accent: derive(-fx-control-inner-background, -40%);
-fx-cell-hover-color: #cce3f4;
-fx-cell-focus-inner-border: #85b9de;
}
.cell-renderer-error-and-changed {
-fx-background-color: rgba(255, 205, 158, .4);
/*-fx-control-inner-background: rgb(255, 205, 158);*/
-fx-accent: derive(-fx-control-inner-background, -40%);
-fx-cell-hover-color: #cce3f4;
-fx-cell-focus-inner-border: #85b9de;
}
