How to eliminate the gray background of the tableview edit-cell - javafx

Question

Problem
When you edit a table cell the row height usually becomes higher, which is unwanted behavior:
I managed to elimininate the height change with this css:
.text-field-table-cell {
-fx-padding: 0;
-fx-background-insets: 0.0;
}
.text-field-table-cell .text-field {
-fx-padding: 0;
-fx-background-insets: 0.0;
-fx-background-color:yellow;
-fx-border-width: 0;
}
But the cell is still not filled fully with the TextField. There's a gray background visible:
Question
Does anyone know how to eliminate the gray background of the edit-cell? Either by colorizing it or by removing it.
Code
Here's the full code if someone wants to test it:
InlineEditingTableViewCSS.java
public class InlineEditingTableViewCSS extends Application {
private final ObservableList<Data> data =
FXCollections.observableArrayList(
new Data(1.,5.),
new Data(2.,6.),
new Data(3.,7.),
new Data(4.,8.)
);
private TableView<Data> table;
#Override
public void start(Stage stage) {
// create edtiable table
table = new TableView<Data>();
table.setEditable(true);
// column 1 contains numbers
TableColumn<Data, Number> number1Col = new TableColumn<>("Number 1");
number1Col.setMinWidth(100);
number1Col.setCellValueFactory( cellData -> cellData.getValue().number1Property());
number1Col.setCellFactory( createNumberCellFactory());
// column 2 contains numbers
TableColumn<Data, Number> number2Col = new TableColumn<>("Number 2");
number2Col.setMinWidth(100);
number2Col.setCellValueFactory( cellData -> cellData.getValue().number2Property());
number2Col.setCellFactory( createNumberCellFactory());
// add columns & data to table
table.setItems(data);
table.getColumns().addAll( number1Col, number2Col);
// switch to edit mode on keypress
// this must be KeyEvent.KEY_PRESSED so that the key gets forwarded to the editing cell; it wouldn't be forwarded on KEY_RELEASED
table.addEventFilter(KeyEvent.KEY_PRESSED, new EventHandler<KeyEvent>() {
#Override
public void handle(KeyEvent event) {
if( event.getCode() == KeyCode.ENTER) {
// event.consume(); // don't consume the event or else the values won't be updated;
return;
}
// switch to edit mode on keypress, but only if we aren't already in edit mode
if( table.getEditingCell() == null) {
if( event.getCode().isLetterKey() || event.getCode().isDigitKey()) {
TablePosition focusedCellPosition = table.getFocusModel().getFocusedCell();
table.edit(focusedCellPosition.getRow(), focusedCellPosition.getTableColumn());
}
}
}
});
table.addEventFilter(KeyEvent.KEY_RELEASED, new EventHandler<KeyEvent>() {
#Override
public void handle(KeyEvent event) {
if( event.getCode() == KeyCode.ENTER) {
table.getSelectionModel().selectBelowCell();
}
}
});
// single cell selection mode
table.getSelectionModel().setCellSelectionEnabled(true);
table.getSelectionModel().selectFirst();
// add nodes to stage
BorderPane root = new BorderPane();
root.setCenter(table);
Scene scene = new Scene( root, 800,600);
scene.getStylesheets().add(getClass().getResource("application.css").toExternalForm());
stage.setScene(scene);
stage.show();
}
/**
* Number cell factory which converts strings to numbers and vice versa.
* #return
*/
private Callback<TableColumn<Data, Number>, TableCell<Data, Number>> createNumberCellFactory() {
Callback<TableColumn<Data, Number>, TableCell<Data, Number>> factory = TextFieldTableCell.forTableColumn( new StringConverter<Number>() {
#Override
public Number fromString(String string) {
return Double.parseDouble(string);
}
#Override
public String toString(Number object) {
return object.toString();
}
});
return factory;
}
/**
* Table data container
*/
public static class Data {
private final SimpleDoubleProperty number1;
private final SimpleDoubleProperty number2;
private Data( Double number1, Double number2) {
this.number1 = new SimpleDoubleProperty(number1);
this.number2 = new SimpleDoubleProperty(number2);
}
public final DoubleProperty number1Property() {
return this.number1;
}
public final double getNumber1() {
return this.number1Property().get();
}
public final void setNumber1(final double number1) {
this.number1Property().set(number1);
}
public final DoubleProperty number2Property() {
return this.number2;
}
public final double getNumber2() {
return this.number2Property().get();
}
public final void setNumber2(final double number2) {
this.number2Property().set(number2);
}
}
public static void main(String[] args) {
launch(args);
}
}
application.css
.text-field-table-cell {
-fx-padding: 0;
-fx-background-insets: 0.0;
}
.text-field-table-cell .text-field {
-fx-padding: 0;
-fx-background-insets: 0.0;
-fx-background-color:yellow;
-fx-border-width: 0;
}
Or is there a good mechanism to find out which CSS is currently being used by a node?
Thank you very much!

Answer 1

Does anyone know how to eliminate the gray background of the
edit-cell?
Set padding values for textfield:
.text-field-table-cell {
-fx-padding: 0;
-fx-background-insets: 0.0;
}
.text-field-table-cell .text-field {
-fx-padding: 3 0 3 0;
-fx-background-insets: 0.0;
-fx-background-color:yellow;
-fx-border-width: 0;
}