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| package test.table.radio;
import javafx.application.Application;
import javafx.application.Platform;
import javafx.beans.Observable;
import javafx.beans.binding.Bindings;
import javafx.beans.binding.StringBinding;
import javafx.beans.value.ChangeListener;
import javafx.collections.FXCollections;
import javafx.collections.ListChangeListener;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.scene.control.cell.CheckBoxTableCell;
import javafx.stage.Stage;
import javafx.util.Pair;
import java.util.Objects;
import java.util.stream.Collectors;
import java.util.stream.IntStream;
public final class Main extends Application {
public static void main(String... args) {
launch(args);
}
private boolean defaultRiskAdjusting = false;
@Override
public void start(final Stage stage) throws Exception {
final int maxRisks = 50;
final var risks = IntStream.range(0, maxRisks)
.mapToObj(index -> new Risk(String.format("risk %d", index + 1), 10 * Math.random(), false))
.collect(Collectors.toUnmodifiableList());
///////////
final var nameColumn = new TableColumn<Risk, String>("Name");
nameColumn.setCellValueFactory(feature -> feature.getValue().nameProperty());
final var riskValueColumn = new TableColumn<Risk, Double>("Risk Value");
riskValueColumn.setCellValueFactory(feature -> feature.getValue().riskValueProperty());
final var defaultRiskColumn = new TableColumn<Risk, Boolean>("Default Risk");
defaultRiskColumn.setEditable(true);
defaultRiskColumn.setCellValueFactory(feature -> feature.getValue().defaultRiskProperty());
defaultRiskColumn.setCellFactory(CheckBoxTableCell.forTableColumn(defaultRiskColumn));
final var tableView = new TableView<Risk>();
tableView.setEditable(true);
tableView.setColumnResizePolicy(TableView.CONSTRAINED_RESIZE_POLICY);
tableView.getColumns().setAll(nameColumn, riskValueColumn, defaultRiskColumn);
tableView.getItems().setAll(risks);
final var listenersToRemoveLater = risks.stream()
.map(risk -> {
final ChangeListener<Boolean> changeListener = (observable, oldValue, newValue) -> {
System.out.printf("%s %b -> %b%n", risk.nameProperty().get(), oldValue, newValue);
if (!defaultRiskAdjusting && newValue) {
defaultRiskAdjusting = true;
try {
risks.stream()
.filter(r -> r != risk)
.forEach(r -> r.defaultRiskProperty().set(false));
} finally {
defaultRiskAdjusting = false;
}
}
};
risk.defaultRiskProperty().addListener(changeListener);
return new Pair<>(risk, changeListener);
})
.collect(Collectors.toUnmodifiableList());
///////////
final var listView = new ListView<Risk>();
listView.getItems().setAll(risks);
listView.setCellFactory(lv -> new ListCell<>() {
@Override
protected void updateItem(final Risk item, final boolean empty) {
super.updateItem(item, empty);
if (!empty && Objects.nonNull(item)) {
textProperty().bind(Bindings.format("%s - %b", item.nameProperty(), item.defaultRiskProperty()));
styleProperty().bind(new StringBinding() {
{
bind(item.defaultRiskProperty());
}
@Override
public void dispose() {
super.dispose();
unbind(item.defaultRiskProperty());
}
@Override
protected String computeValue() {
return (item.defaultRiskProperty().get()) ? "-fx-font-weight: bold;" : null;
}
});
} else {
textProperty().unbind();
setText(null);
styleProperty().unbind();
setStyle(null);
}
}
});
///////////
final var textArea = new TextArea();
FXCollections.observableList(risks, risk -> new Observable[]{risk.defaultRiskProperty()})
.addListener((ListChangeListener<Risk>) change -> {
while (change.next()) {
String changeLabel = "?"; // NOI18N.
if (change.wasReplaced()) {
changeLabel = "replaced"; // NOI18N.
} else if (change.wasAdded()) {
changeLabel = "added"; // NOI18N.
} else if (change.wasRemoved()) {
changeLabel = "removed"; // NOI18N.
} else if (change.wasPermutated()) {
changeLabel = "permutated"; // NOI18N.
} else if (change.wasUpdated()) {
changeLabel = "updated"; // NOI18N.
}
final var pattern = String.format("Element %s was %s%n", "%d", changeLabel); // NOI18N.
final var builder = new StringBuilder(textArea.getText());
if (change.wasAdded() || change.wasReplaced() || change.wasUpdated()) {
for (int index = change.getFrom(); index < change.getTo(); index++) {
builder.append(String.format(pattern, index));
}
} else {
for (int index = change.getFrom(); index <= change.getTo(); index++) {
builder.append(String.format(pattern, index));
}
}
final String text = builder.toString();
textArea.setText(text);
}
});
///////////
final var root = new SplitPane(tableView, listView, textArea);
final var scene = new Scene(root);
stage.setWidth(800);
stage.setHeight(600);
stage.setTitle("Test");
stage.setScene(scene);
stage.show();
Platform.runLater(() -> root.setDividerPositions(0.33d, 0.66d));
}
} |
