直接上代碼
package com.kedong.hmi.pictureeditor.core.gdiclient.business.fx;
/**
* @Auther: mazhongjia
* @Date: 2020/4/20 18:12
* @Version: 1.0
*/
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.property.StringProperty;
public class Person {
private StringProperty firstName;
private StringProperty lastName;
public Person(String firstName, String lastName) {
setFirstName(firstName);
setLastName(lastName);
}
public final void setFirstName(String value) { firstNameProperty().set(value); }
public final void setLastName(String value) { lastNameProperty().set(value); }
public String getFirstName() { return firstNameProperty().get(); }
public String getLastName() { return lastNameProperty().get(); }
public StringProperty firstNameProperty() {
if (firstName == null) firstName = new SimpleStringProperty(this, "firstName");
return firstName;
}
public StringProperty lastNameProperty() {
if (lastName == null) lastName = new SimpleStringProperty(this, "lastName");
return lastName;
}
}
package com.kedong.hmi.pictureeditor.core.gdiclient.business.fx;
/**
* @Auther: mazhongjia
* @Date: 2020/4/20 18:12
* @Version: 1.0
*/
/////////////////////////////////////////////////////////////////////
import javafx.application.Application;
import javafx.beans.property.*;
import javafx.beans.value.ObservableValue;
import javafx.collections.FXCollections;
import javafx.event.*;
import javafx.geometry.*;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.scene.image.Image;
import javafx.scene.input.MouseEvent;
import javafx.scene.layout.*;
import javafx.stage.*;
import javafx.util.Callback;
public class TableViewWithAddButtonExample extends Application {
static int val = 0;
public static void main(String[] args) {
launch(args);
}
@Override
public void start(final Stage stage) {
stage.setTitle("People");
// stage.getIcons().add(new Image("http://icons.iconarchive.com/icons/icons-land/vista-people/72/Historical-Viking-Female-icon.png")); // icon license: Linkware (Backlink to http://www.icons-land.com required)
// create a table.
final TableView<Person> table = new TableView<>(
FXCollections.observableArrayList(
new Person("Jacob", "Smith"),
new Person("Isabella", "Johnson"),
new Person("Ethan", "Williams"),
new Person("Emma", "Jones"),
new Person("Michael", "Brown")
)
);
// define the table columns.
TableColumn<Person, String> firstNameCol = new TableColumn<>("First Name");
firstNameCol.setCellValueFactory(new PropertyValueFactory("firstName"));
TableColumn<Person, String> lastNameCol = new TableColumn<>("Last Name");
lastNameCol.setCellValueFactory(new PropertyValueFactory("lastName"));
TableColumn<Person, Object> actionCol = new TableColumn<>("Action");
actionCol.setSortable(false);
// define a simple boolean cell value for the action column so that the column will only be shown for non-empty rows.
actionCol.setCellValueFactory(new Callback<TableColumn.CellDataFeatures<Person, Object>, ObservableValue<Object>>() {
@Override
public ObservableValue<Object> call(TableColumn.CellDataFeatures<Person, Object> features) {
return new SimpleObjectProperty<Object>(val++);
}
});
// create a cell value factory with an add button for each row in the table.
actionCol.setCellFactory(new Callback<TableColumn<Person, Object>, TableCell<Person, Object>>() {
@Override
public TableCell<Person, Object> call(TableColumn<Person, Object> personBooleanTableColumn) {
return new AddPersonCell(stage, table);
}
});
table.getColumns().setAll(firstNameCol, lastNameCol, actionCol);
table.setColumnResizePolicy(TableView.CONSTRAINED_RESIZE_POLICY);
stage.setScene(new Scene(table));
stage.show();
}
/**
* A table cell containing a button for adding a new person.
*/
private class AddPersonCell extends TableCell<Person, Object> {
// a button for adding a new person.
final Button addButton = new Button("Add");
final Button deleteButton = new Button("Delete");
final Label label = new Label("label123");
// pads and centers the add button in the cell.
final StackPane paddedButton = new StackPane();
// records the y pos of the last button press so that the add person dialog can be shown next to the cell.
final DoubleProperty buttonY = new SimpleDoubleProperty();
/**
* AddPersonCell constructor
*
* @param stage the stage in which the table is placed.
* @param table the table to which a new person can be added.
*/
AddPersonCell(final Stage stage, final TableView table) {
paddedButton.setPadding(new Insets(3));
paddedButton.getChildren().add(addButton);
addButton.setOnMousePressed(new EventHandler<MouseEvent>() {
@Override
public void handle(MouseEvent mouseEvent) {
buttonY.set(mouseEvent.getScreenY());
}
});
addButton.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent actionEvent) {
showAddPersonDialog(stage, table, buttonY.get());
table.getSelectionModel().select(getTableRow().getIndex());
//Person person = new Person();
//table.getSelectionModel().select(getIndex());
//person = table.getSelectionModel().getSelectedItem();
}
});
deleteButton.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent actionEvent) {
System.out.println("1234");
//Person person = new Person();
//table.getSelectionModel().select(getIndex());
//person = table.getSelectionModel().getSelectedItem();
}
});
}
/**
* places an add button in the row only if the row is not empty.
*/
@Override
protected void updateItem(Object item, boolean empty) {
super.updateItem(item, empty);
if (!empty) {
// setContentDisplay(ContentDisplay.GRAPHIC_ONLY);
System.out.println(item.getClass());
if (item.equals(new Integer(6))) {
setGraphic(deleteButton);
}else if (item.equals(new Integer(9))) {
setGraphic(addButton);
} else {
setGraphic(label);
// setGraphic(addButton);
}
} else {
setGraphic(null);
}
}
}
/**
* shows a dialog which displays a UI for adding a person to a table.
*
* @param parent a parent stage to which this dialog will be modal and placed next to.
* @param table the table to which a person is to be added.
* @param y the y position of the top left corner of the dialog.
*/
private void showAddPersonDialog(Stage parent, final TableView<Person> table, double y) {
// initialize the dialog.
final Stage dialog = new Stage();
dialog.setTitle("New Person");
dialog.initOwner(parent); //對話框永遠在前面
dialog.initModality(Modality.WINDOW_MODAL); //必須關閉對話框後才能操作其他的
dialog.initStyle(StageStyle.UTILITY); //對話框-只保留關閉按鈕
dialog.setX(parent.getX() + parent.getWidth());
dialog.setY(y);
// create a grid for the data entry.
GridPane grid = new GridPane();
final TextField firstNameField = new TextField();
final TextField lastNameField = new TextField();
grid.addRow(0, new Label("First Name"), firstNameField);
grid.addRow(1, new Label("Last Name"), lastNameField);
grid.setHgap(10);
grid.setVgap(10);
GridPane.setHgrow(firstNameField, Priority.ALWAYS);
GridPane.setHgrow(lastNameField, Priority.ALWAYS);
// create action buttons for the dialog.
Button ok = new Button("OK");
ok.setDefaultButton(true);
Button cancel = new Button("Cancel");
cancel.setCancelButton(true);
// only enable the ok button when there has been some text entered.
ok.disableProperty().bind(firstNameField.textProperty().isEqualTo("").or(lastNameField.textProperty().isEqualTo("")));
// add action handlers for the dialog buttons.
ok.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent actionEvent) {
int nextIndex = table.getSelectionModel().getSelectedIndex() + 1;
table.getItems().add(nextIndex, new Person(firstNameField.getText(), lastNameField.getText()));
table.getSelectionModel().select(nextIndex);
dialog.close();
}
});
cancel.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent actionEvent) {
dialog.close();
}
});
// layout the dialog.
HBox buttons = HBoxBuilder.create().spacing(10).children(ok, cancel).alignment(Pos.CENTER_RIGHT).build();
VBox layout = new VBox(10);
layout.getChildren().addAll(grid, buttons);
layout.setPadding(new Insets(5));
dialog.setScene(new Scene(layout));
dialog.show();
}
}
