I am trying to disable certain dates from a datepicker in javafx (v10) however I keep getting the issue whereby the valid dates seem to change css when moving forwards a month and back. Is this a known bug or can anyone spot a fault with the code?
private void getDayCellFactory(DatePicker datePicker1) {
Callback<DatePicker, DateCell> dayCellFactory = (final DatePicker datePicker) -> new DateCell() {
#Override
public void updateItem(LocalDate item, boolean empty) {
super.updateItem(item, empty);
if (item.isAfter(LocalDate.now().plusDays(9))) {
setDisable(true);
}
if (item.isBefore(ChronoLocalDate.from(LocalDate.now()))) {
setDisable(true);
}
}
};
datePicker1.setDayCellFactory(dayCellFactory);
}
Related
I have tried searching both google and stackoverflow for answer to my question but I could not find any.
I have a program that adds/reads data from a database and to a tableview. I want to be able to edit the previously entered data from the tableview by adding two buttons (Save and abort) to the current row being edited.
I am having some troubles understanding the routines like Callback etc. But I have managed to get a column with two buttons to appear when I start the edit. But I get buttons on every column I just want the buttons on the currently
selected row. Also I don't really understand how to get the current object from the save-button to be able to save it.
And also how the abort-button should work to cancel all changes.
public void setUpTableView() {
columnAnkomstdatum.setCellValueFactory(new PropertyValueFactory<>("arrivalDate"));
columnSupplier.setCellValueFactory(new PropertyValueFactory<>("supplier"));
columnRadiopharmaceutical.setCellValueFactory(new PropertyValueFactory<>("radiopharmaceutical"));
columnActivity.setCellValueFactory(new PropertyValueFactory<>("startActivity"));
columnCalibrationdate.setCellValueFactory(new PropertyValueFactory<>("startDate"));
columnBatchNumber.setCellValueFactory(new PropertyValueFactory<>("batchNumber"));
columnContaminationControl.setCellValueFactory(new PropertyValueFactory<>("contaminationControll"));
columnRoom.setCellValueFactory(new PropertyValueFactory<>("room"));
columnUser.setCellValueFactory(new PropertyValueFactory<>("user"));
tableview.setEditable(true);
columnSupplier.setEditable(true);
columnSupplier.setCellFactory(ComboBoxTableCell.forTableColumn(supplierList));
columnSupplier.setOnEditCommit(t -> {
ArrayList<Radiopharmaceutical> radioListfromSupplier = new RadiopharmaceuticalDao().getRadiopharmaceuticalsBySupplierName(t.getNewValue().getSupplierName());
radioList = FXCollections.observableArrayList(radioListfromSupplier);
t.getRowValue().setSupplier(t.getNewValue());
columnRadiopharmaceutical.setCellFactory(ComboBoxTableCell.forTableColumn(radioList));
if(tableview.getColumns().size() <= 9) {
addButtonsToTable();
}
});
}
private void addButtonsToTable() {
TableColumn<RegRadio, Void> editRow = new TableColumn<>("Edit");
tableview.getColumns().add(editRow);
Callback<TableColumn<RegRadio, Void>, TableCell<RegRadio, Void>> cellFactory = new Callback<TableColumn<RegRadio,Void>, TableCell<RegRadio,Void>>() {
#Override
public TableCell<RegRadio, Void> call(final TableColumn<RegRadio, Void> param) {
final TableCell<RegRadio, Void> cell = new TableCell<RegRadio, Void>() {
private final Button btnSave = new Button("Save");
private final Button btnAbort = new Button("Avbryt");
{
btnSave.setOnAction((ActionEvent event) -> {
RegRadio rr = getTableView().getItems().get(getIndex());
System.out.println("Saved");
});
}
{
btnAbort.setOnAction((ActionEvent event) -> {
System.out.println("Abort");
});
}
#Override
public void updateItem(Void item, boolean empty) {
super.updateItem(item, empty);
if (empty) {
setGraphic(null);
} else {
HBox pane = new HBox(btnSave, btnAbort);
setGraphic(pane);
}
}
};
return cell;
}
};
editRow.setCellFactory(cellFactory);
tableview.getColumns().add(editRow);
}
In your updateItem callback you can check if the cell is in the selected row in order to decide if you should show the buttons or not. Additionally you also need a flag to check if the user is editing. Something like this:
#Override
public void updateItem(Void item, boolean empty) {
super.updateItem(item, empty);
var selectedCells = tableview.getSelectionModel().getSelectedCells();
if (empty || !isEditing || selectedCells.isEmpty || getTableRow().getIndex() != selectedCells.get(0).getRow()) {
setGraphic(null);
} else {
HBox pane = new HBox(btnSave, btnAbort);
setGraphic(pane);
}
}
Another approach would be to change the visibility of the buttons depending on whether the cell is in the selected row:
#Override
public void updateItem(Void item, boolean empty) {
super.updateItem(item, empty);
if (empty) {
setGraphic(null);
} else {
HBox pane = new HBox(btnSave, btnAbort);
var selectedCells = tableview.getSelectionModel().getSelectedCells();
pane.setVisible(!selectedCells.isEmpty() && getTableRow().getIndex() == selectedCells.get(0).getRow())
setGraphic(pane);
}
}
(I haven't compiled and tested these code samples)
I am able to change the color of a JFXDatePicker from the JFoenix library for certain dates via the code below.
final Callback<DatePicker, DateCell> dayCellFactory = new Callback<DatePicker, DateCell>() {
#Override
public DateCell call(final DatePicker datePicker) {
return new DateCell() {
#Override
public void updateItem(LocalDate item, boolean empty) {
super.updateItem(item, empty);
if(!empty) {
if(listRegisteredTOTDays.contains(item)) {
setStyle("-fx-background-color: #99e699;");
}
}
}
};
}
};
The problem occurs when I have hovered over the item with a changed background. It changes the background colour to the default one after hovering and not the set one via de code above.
I do not want to disable the cell as the user still must be able to click on it!
The exercise is to inform the user which dates already has data. So nothing can be disabled.
How to overcome this? I just want after hovering it gets back the color set as above.
Before hovering:
and after hovering
While JFXDatePicker looks beautiful, it takes some liberties that make DateCells hard to customize. Instead of using CSS to style the cells it sets the background from code which has a higher precedence than any CSS, even inline CSS styles.
You can see this in the createDayCells() method of com.jfoenix.skins.JFXDatePickerContent.
This means without modifying the skins your only chance of fixing this is to add your own event handler and use Platform.runLater to ensure it runs after the event handler added in createDayCells():
final Background markedBackground = new Background(new BackgroundFill(Color.rgb(0x99, 0xE6, 0x99),
CornerRadii.EMPTY,
Insets.EMPTY));
picker.setDayCellFactory(dp -> new DateCell() {
{
addEventHandler(MouseEvent.MOUSE_EXITED, evt -> {
if (listRegisteredTOTDays.contains(getItem())) {
// override background property of marked cells after
// JFXDatePicker modifies it
Platform.runLater(() -> {
setBackground(markedBackground);
});
}
});
}
#Override
public void updateItem(LocalDate item, boolean empty) {
super.updateItem(item, empty);
if (!empty && listRegisteredTOTDays.contains(item)) {
setBackground(markedBackground);
}
}
});
I am trying to change the color of the table rows when I set a boolean.
So I have this code:
boolean searchmode = false;
....
columns.forEach(c -> c.setCellFactory(column -> {
return new TableCell<ShowableInWarenkorb, String>() {
#Override
protected void updateItem(String item, boolean empty) {
super.updateItem(item, empty);
setText(empty ? null : item);
if (searchmode) {
getStyleClass().add("searchmode");
} else{
getStyleClass().remove("searchmode");
}
}
};
}));
This CSS:
.searchmode {
-fx-background-color: rgba(153,153,153,0.3);
})
And then I switch searchmode eventually in my code before I am updating the table contents.
But the color does not change immediatley, sometimes I have to click a little bit around before it changes, how can I trigger it manually?
From your code, it looks like you want to apply this to all cells in the table. You can do this without a cell factory at all (though you may need one for other purposes).
Do
PseudoClass searchmodePseudoClass = PseudoClass.getPseudoClass("searchmode");
and then when you change the value of searchmode, do
table.pseudoClassStateChanged(searchmode);
In your css, do
.table-view:searchmode .table-cell {
-fx-background-color: rgba(153,153,153,0.3);
}
If you want to "automate" the update to the pseudoclass state, use a boolean property and add a listener:
private final BooleanProperty searchmode = new SimpleBooleanProperty(false);
public final boolean isSearchmode() {
return searchmodeProperty().get();
}
public final void setSearchmode(boolean searchmode) {
searchmodeProperty().set(searchmode);
}
public BooleanProperty searchmodeProperty() {
return searchmode ;
}
Then if you add the listener
searchmode.addListener((obs, wasSearchmode, isNowSearchmode) ->
table.pseudoClassStateChanged(searchmodePseudoClass, isNowSearchmode));
everything will be wired automatically so the table changes whenever you call setSearchmode(...).
I have implemented a custom datePickerTableCell to show a date picker on cell edit. I am using the ExtFX DatePicker (https://bitbucket.org/sco0ter/extfx/overview). Everything works fine except when I enter the date manually instead of choosing it from picker, I get a NullPointerException on commitEdit().
datePicker.setOnKeyPressed(new EventHandler<KeyEvent>() {
#Override
public void handle(KeyEvent t) {
if (t.getCode() == KeyCode.ENTER) {
if(getItem() == null) {
commitEdit(null);
} else {
commitEdit(getItem());
}
} else if (t.getCode() == KeyCode.ESCAPE) {
cancelEdit();
}
}
});
I coudnt find whats going wrong here.
Maybe have a look at this example. It uses a color picker but works as well for a date picker:
public class ColorTableCell<T> extends TableCell<T, Color> {
private final ColorPicker colorPicker;
public ColorTableCell(TableColumn<T, Color> column) {
this.colorPicker = new ColorPicker();
this.colorPicker.editableProperty().bind(column.editableProperty());
this.colorPicker.disableProperty().bind(column.editableProperty().not());
this.colorPicker.setOnShowing(event -> {
final TableView<T> tableView = getTableView();
tableView.getSelectionModel().select(getTableRow().getIndex());
tableView.edit(tableView.getSelectionModel().getSelectedIndex(), column);
});
this.colorPicker.valueProperty().addListener((observable, oldValue, newValue) -> {
if(isEditing()) {
commitEdit(newValue);
}
});
setContentDisplay(ContentDisplay.GRAPHIC_ONLY);
}
#Override
protected void updateItem(Color item, boolean empty) {
super.updateItem(item, empty);
setText(null);
if(empty) {
setGraphic(null);
} else {
this.colorPicker.setValue(item);
this.setGraphic(this.colorPicker);
}
}
}
If you're on Java 7, replace the lambdas with anonymous inner classes, but it should work as well. Full blog post is here.
See if this example helps. It uses Java 8 and the DatePicker control from there.
This example may help too. It uses a DatePicker and TableView control with Java 8.
I faced a similar issue when using a TextArea as table cells. The issue turns out to be I was using startEdit in the TableCell implementation. Using TableView#edit instead of startEdit resolved the issue.
I have a table view and inside it, there is one column filled with TextField.
There is no problem when I have few data and my table do not have scroll bar, all TextFields appears.
The problem is, when I scroll down my table and then goes up again, some TextFields are missing.
Here is my code for the column filled with TextField:
purchaseQtyCol.setCellFactory(
new Callback<TableColumn< TransactionModel, TextField>, TableCell< TransactionModel, TextField>>() {
#Override
public TableCell< TransactionModel, TextField> call(final TableColumn< TransactionModel, TextField> p) {
TableCell<TransactionModel, TextField> cell = new TableCell<TransactionModel, TextField>() {
#Override
public void updateItem(TextField item, boolean empty) {
super.updateItem(item, empty);
if (item != null) {
/**
* for(CheckBox cbb : canceledCB) {
* if(item.equals(cbb))
* System.out.println("aa" +
* this.indexProperty().getValue() + " " +
* item.isSelected() ); }*
*/
this.setGraphic(item);
}
}
};
cell.setAlignment(Pos.CENTER);
return cell;
}
});
purchaseQtyCol.setCellValueFactory(new Callback<CellDataFeatures<TransactionModel, TextField>, ObservableValue<TextField>>() {
#Override
public ObservableValue<TextField> call(final CellDataFeatures<TransactionModel, TextField> p) {
System.out.println("new textfield");
final TextField qtyField = new TextField() {
#Override
public void replaceText(int start, int end, String text) {
if (text.matches("[0-9]") || text.equals("")) {
super.replaceText(start, end, text);
if (this.getText().isEmpty()) {
p.getValue().setPurchaseQty(0);
p.getValue().setTotalPrice(0);
} else {
p.getValue().setPurchaseQty(Integer.parseInt(this.getText()));
p.getValue().setTotalPrice(p.getValue().purchaseQtyProperty().intValue() * p.getValue().basePriceProperty().intValue());
}
recountTotals();
}
}
#Override
public void replaceSelection(String text) {
if (text.matches("[0-9]") || text.equals("")) {
super.replaceSelection(text);
if (this.getText().isEmpty()) {
p.getValue().setPurchaseQty(0);
p.getValue().setTotalPrice(0);
} else {
p.getValue().setPurchaseQty(Integer.parseInt(this.getText()));
p.getValue().setTotalPrice(p.getValue().purchaseQtyProperty().intValue() * p.getValue().basePriceProperty().intValue());
}
recountTotals();
}
}
};
qtyField.setText("" + p.getValue().purchaseQtyProperty().getValue());
qtyField.setAlignment(Pos.CENTER_RIGHT);
return new SimpleObjectProperty(qtyField);
}
});
I really appreciate helps from you guys.
Regards,
Chrisma Andhika
Chrisma! The problem you face is a famous issue for JavaFX about updating items in tableview. There is already some workaround about it, for example here. The solution was to trigger tableview's internal update mechanism by
tableview.getColumns().get(0).setVisible(false);
tableview.getColumns().get(0).setVisible(true);
But as far as I could understand this solution affected only changes of data, not the style of tableview's nodes.
I also used
#Override
public void updateItem(Object item, boolean empty)
with my implementation, but it was not enough, because when there were too many rows in a table and scroll bar appeared the updating of rows became an absolute mess.
What I needed is to make highlighted all visible rows satifying some criteria by using css. I achieved that in the following way:
Callback<TableView<Person>, TableRow<Person>> callBack =
new Callback<TableView<Person>, TableRow<Person>>() {
#Override
public TableRow<Person> call(TableView<Person> tableView) {
final TableRow<Person> row = new TableRow<Person>() {
#Override
public void updateItem(Person item, boolean empty) {
super.updateItem(item, empty);
if(!empty && item.getFirstName() == "John") {
getStyleClass().add("john");
}
}
};
row.visibleProperty().addListener(new ChangeListener() {
#Override
public void changed(ObservableValue observableValue, Object t, Object t1) {
Boolean oldValue = (Boolean)t;
Boolean newValue = (Boolean)t1;
if(oldValue && !newValue) {
row.getStyleClass().remove("john");
}
if(!oldValue && newValue) {
if(row.getItem().getFirstName() == "John")
row.getStyleClass().add("john");
}
}
});
return row;
}
};
tableview.setRowFactory(callBack);
The css file should contain the following lines:
.john {
-fx-background-color: forestgreen;
-fx-text-fill: white;
-fx-border-style: solid;
}
Of course you may choose different styling of rows.
The Person class should contain
public SimpleStringProperty firstNameProperty() {
return firstName;
}
As you can see I added the listener to the VisibleProperty of a row, where I control the css behavior of each row. Maybe this idea could help to solve data update in tableview in some cases, not just rows styling.
I should aslo add that I started receiving the NullPointerException in the public void changed method in the code above, although it doesn't affect the result of my programm.
I hope it will help you, Chrisma! And others as well!
I just had that problem with checkboxes. They randomly dissapeared when I scrolled my big table rapidly. I solved it just by deleting this line in my cellFactory:
#Override
public void updateItem(Boolean item, boolean empty) {
super.updateItem(item, empty);
if (empty) {
setText(null);
// setGraphic(null); (This line causes weird behaviour in scrolling, delete it)
} else {
checkBox.setSelected(item);
}
}
Well, I also had the same problem, apparently only draw the visible text field, when we use the scroll does not appear, because only drawing the scene but not the textinputcontrol , so my solution is to capture the scroll event and when you use it to resize the textfield and return it to its original size, thus forcing you to repaint the object, now appear with textinputcontrol.forcing repaint the object, now appear with textinputcontrol.
tableview.addEventFilter(ScrollEvent.ANY, new EventHandler<ScrollEvent>() {
#Override
public void handle(ScrollEvent scrollEvent) {
System.out.println("Scrolled.");
for(ObservableList<TextField> i:data)
{
for(TextField j: i)
{
j.setPrefSize(141, 31);
j.setPrefSize(140, 30);
}
}
}
});