javafx.scene.control.Alert#show ( )源码实例Demo

/** Real window creator */
private static void getNotification(String title, String body, Alert.AlertType type){
    Alert alertBox = new Alert(type);
    alertBox.setTitle(title);
    alertBox.setHeaderText(null);
    alertBox.setContentText(body);
    alertBox.getDialogPane().setMinWidth(Region.USE_PREF_SIZE);
    alertBox.getDialogPane().setMinHeight(Region.USE_PREF_SIZE);
    alertBox.setResizable(true);        // Java bug workaround for JDR11/OpenJFX. TODO: nothing. really.
    alertBox.getDialogPane().getStylesheets().add(AppPreferences.getInstance().getTheme());

    Stage dialogStage = (Stage) alertBox.getDialogPane().getScene().getWindow();
    dialogStage.setAlwaysOnTop(true);
    dialogStage.getIcons().addAll(
            new Image("/res/warn_ico32x32.png"),
            new Image("/res/warn_ico48x48.png"),
            new Image("/res/warn_ico64x64.png"),
            new Image("/res/warn_ico128x128.png")
    );
    alertBox.show();
    dialogStage.toFront();
}
 

public void show()
{
	final Hyperlink hyperlink = new Hyperlink("Google Cloud SDK");
	hyperlink.setOnAction(e -> Paintera.getApplication().getHostServices().showDocument(googleCloudSdkLink));

	final TextArea area = new TextArea(googleCloudAuthCmd);
	area.setFont(Font.font("monospace"));
	area.setEditable(false);
	area.setMaxHeight(24);

	final TextFlow textFlow = new TextFlow(
			new Text("Please install "),
			hyperlink,
			new Text(" and then run this command to initialize the credentials:"),
			new Text(System.lineSeparator() + System.lineSeparator()),
			area);

	final Alert alert = PainteraAlerts.alert(Alert.AlertType.INFORMATION);
	alert.setHeaderText("Could not find Google Cloud credentials.");
	alert.getDialogPane().contentProperty().set(textFlow);
	alert.show();
}
 

private void addFeaturePanel(String filePath) {
    try {
        DataStore ds = DataStores.open(filePath);
        setContent(new FeatureTable(ds, 18));
        root.getChildren().addAll(temp);
        temp.clear();
    } catch (DataStoreException e) {
        final Alert alert = new Alert(Alert.AlertType.ERROR);
        alert.setTitle("An error has occurred");
        Label lab = new Label(e.getMessage());
        lab.setWrapText(true);
        lab.setMaxWidth(650);
        VBox vb = new VBox();
        vb.getChildren().add(lab);
        alert.getDialogPane().setContent(vb);
        alert.show();
    }
}
 

/**
 * When ROOT node is completely empty, create a new folder with the current timestamp.
 */
private void checkRootNode() {
    Node rootNode = saveAndRestoreService.getRootNode();

    if (saveAndRestoreService.getChildNodes(rootNode).isEmpty()) {
        Node newFolderBuild = Node.builder()
                .nodeType(NodeType.FOLDER)
                .name(savesetTimeFormat.format(Instant.now()) + " (Auto-created)")
                .build();

        try {
            saveAndRestoreService.createNode(rootNode.getUniqueId(), newFolderBuild);
        } catch (Exception e) {
            String alertMessage = "Cannot create a new folder under root node: " + rootNode.getName() + "(" + rootNode.getUniqueId() + ")";
            Alert alert = new Alert(Alert.AlertType.ERROR);
            alert.setContentText(alertMessage);
            alert.show();

            LOGGER.severe(alertMessage);

            e.printStackTrace();
        }
    }
}
 

/**
 * Display a dialog containing all Rule objects registered with the Quality
 * Control View and which matched for a given identifier.
 *
 * @param owner The owner Node
 * @param identifier The identifier of the graph node being displayed.
 * @param rules The list of rules measured against this graph node.
 */
private static void showRuleDialog(final Node owner, final String identifier, final List<Pair<Integer, String>> rules) {
    final ScrollPane sp = new ScrollPane();
    sp.setPrefHeight(512);
    sp.setPrefWidth(512);
    sp.setFitToWidth(true);
    sp.setVbarPolicy(ScrollPane.ScrollBarPolicy.ALWAYS);
    sp.setHbarPolicy(ScrollPane.ScrollBarPolicy.NEVER);

    final VBox vbox = new VBox();
    vbox.prefWidthProperty().bind(sp.widthProperty());
    vbox.setPadding(Insets.EMPTY);
    for (final Pair<Integer, String> rule : rules) {
        final String[] t = rule.getValue().split("§");

        final String quality = rule.getKey() == 0 ? Bundle.MSG_NotApplicable() : "" + rule.getKey();
        final String title = String.format("%s - %s", quality, t[0]);

        final Text content = new Text(t[1]);
        content.wrappingWidthProperty().bind(sp.widthProperty().subtract(16)); // Subtract a random number to avoid the vertical scrollbar.

        final TitledPane tp = new TitledPane(title, content);
        tp.prefWidthProperty().bind(vbox.widthProperty());
        tp.setExpanded(false);
        tp.setWrapText(true);

        vbox.getChildren().add(tp);
    }
    sp.setContent(vbox);

    final Alert alert = new Alert(Alert.AlertType.INFORMATION);
    alert.setHeaderText(String.format(Bundle.MSG_QualtyControlRules(), identifier));
    alert.getDialogPane().setContent(sp);
    alert.setResizable(true);
    alert.show();
}
 

/**
 * shows a message dialog just for a few given milliseconds
 *
 * @param parent
 * @param title
 * @param message
 * @param time
 */
public static void showMessageDialogForTime(String title, String message, long time) {
  Alert alert = new Alert(AlertType.INFORMATION, message);
  alert.setTitle(title);
  alert.show();
  Timeline idleTimer = new Timeline(new KeyFrame(Duration.millis(time), e -> alert.hide()));
  idleTimer.setCycleCount(1);
  idleTimer.play();
}
 

public static void renderAdvertisement(){
	if(MainWindow.mainScreen.hasDocument(false)){
		if(!MainWindow.mainScreen.document.pdfPagesRender.advertisement){ // not already sended
			MainWindow.mainScreen.document.pdfPagesRender.advertisement = true;

			Alert alert = Builders.getAlert(Alert.AlertType.WARNING, TR.tr("Erreur de rendu"));
			alert.setHeaderText(TR.tr("Des erreurs sont apparues lors du rendu du document PDF."));
			alert.setContentText(TR.tr("Certains caractères spéciaux (espaces insécables, signes spéciaux ou tabulations) risquent de ne pas s'afficher correctement."));
			alert.show();
		}
	}
}
 

/**
 * Display an alert to the user with the specified information.
 * @param title alert title
 * @param description alert content description
 * @param type alert type
 */
private void showMessage(String title, String description, Alert.AlertType type) {

  Alert alert = new Alert(type);
  alert.setTitle(title);
  alert.setContentText(description);
  alert.show();
}
 

private void updateFromDirectoryChooser(final File initialDirectory, final Window ownerWindow) {

		final DirectoryChooser directoryChooser = new DirectoryChooser();
		directoryChooser.setInitialDirectory(initialDirectory);
		final File updatedRoot = directoryChooser.showDialog(ownerWindow);

		LOG.debug("Updating root to {} (was {})", updatedRoot, container.get());

		try {
			if (updatedRoot != null && !isN5Container(updatedRoot.getAbsolutePath())) {
				final Alert alert = PainteraAlerts.alert(Alert.AlertType.INFORMATION);
				alert.setHeaderText("Selected directory is not a valid N5 container.");
				final TextArea ta = new TextArea("The selected directory \n\n" + updatedRoot.getAbsolutePath() + "\n\n" +
						"A valid N5 container is a directory that contains a file attributes.json with a key \"n5\".");
				ta.setEditable(false);
				ta.setWrapText(true);
				alert.getDialogPane().setContent(ta);
				alert.show();
			}
		}
		catch (final IOException e) {
			LOG.error("Failed to notify about invalid N5 container: {}", updatedRoot.getAbsolutePath(), e);
		}

		if (updatedRoot != null && updatedRoot.exists() && updatedRoot.isDirectory()) {
			// set null first to make sure that container will be invalidated even if directory is the same
			container.set(null);
			container.set(updatedRoot.getAbsolutePath());
		}

	}
 

public static void showDialog(Window owner, String title, Message message) {
	alert = new Alert(AlertType.NONE);
	alert.initOwner(owner);
	alert.setTitle(title);
	ObservableMap<String, String> messages = message.getMessages();
	StringBuilder msg = new StringBuilder();
	messages.forEach((key, value) -> msg.append(String.format("%s\t: %s%n", key, value)));
	alert.getDialogPane().setMinHeight(messages.size() * 30d);
	alert.setContentText(msg.toString());

	// Run with small delay on each change
	messages.addListener((Change<? extends String, ? extends String> change) -> Platform.runLater(() -> {
		StringBuilder msgChange = new StringBuilder();
		messages.forEach((key, value) -> msgChange.append(String.format("%s\t: %s%n", key, value)));
		alert.setContentText(msgChange.toString());
		if (messages.values().stream().allMatch(val -> val.startsWith(Message.processed))) {
			stopDialog();
			message.clearMessages();
		}
	}));

	alert.initModality(Modality.APPLICATION_MODAL);
	alert.getDialogPane().getStylesheets()
			.add(LoadDialog.class.getResource("/css/application.css").toExternalForm());
	// Calculate the center position of the parent Stage
	double centerXPosition = owner.getX() + owner.getWidth() / 2d;
	double centerYPosition = owner.getY() + owner.getHeight() / 2d;

	alert.setOnShowing(e -> {
		alert.setX(centerXPosition - alert.getDialogPane().getWidth() / 2d);
		alert.setY(centerYPosition - alert.getDialogPane().getHeight() / 2d);
	});
	alert.show();
}
 

public static void showAlert(Alert.AlertType alertType, Window owner, String title, String message) {
    Alert alert = new Alert(alertType);
    alert.setTitle(title);
    alert.setHeaderText(null);
    alert.setContentText(message);
    alert.initOwner(owner);
    alert.show();
}
 

public static void showAlert(Alert.AlertType alertType, Window owner, String title, String message) {
    Alert alert = new Alert(alertType);
    alert.setTitle(title);
    alert.setHeaderText(null);
    alert.setContentText(message);
    alert.initOwner(owner);
    alert.show();
}
 

static void showThrowable(String sender, String className, String message, List<StackTraceElement> stacktrace) {
	if (!Main.getProperties().getBoolean("error-alerting", true)) return;

	Alert alert = new Alert(Alert.AlertType.ERROR);
	((Stage) alert.getDialogPane().getScene().getWindow()).getIcons().add(new Image(App.ICON_URL.toString()));

	alert.setTitle(Main.getString("error"));
	alert.initModality(Modality.WINDOW_MODAL);
	alert.setHeaderText(className + " " + Main.getString("caused-by") + " " + sender);
	alert.setContentText(message);
	StringBuilder exceptionText = new StringBuilder ();
	for (Object item : stacktrace)
		exceptionText.append((item != null ? item.toString() : "null") + "\n");

	TextArea textArea = new TextArea(exceptionText.toString());
	textArea.setEditable(false);
	textArea.setWrapText(true);
	textArea.setMaxWidth(Double.MAX_VALUE);
	textArea.setMaxHeight(Double.MAX_VALUE);

	CheckBox checkBox = new CheckBox(Main.getString("enable-error-alert"));
	checkBox.setSelected(Main.getProperties().getBoolean("error-alerting", true));
	checkBox.selectedProperty().addListener((obs, oldValue, newValue) -> {
		Main.getProperties().put("error-alerting", newValue);
	});

	BorderPane pane = new BorderPane();
	pane.setTop(checkBox);
	pane.setCenter(textArea);

	alert.getDialogPane().setExpandableContent(pane);
	alert.show();
}
 

/**
 * 信息提示框
 * 
 * @param message
 */
public static void showInfoAlert(String message) {
	Alert alert = new Alert(Alert.AlertType.INFORMATION);
	alert.setContentText(message);
	alert.show();
}
 

/**
 * 注意提示框
 * 
 * @param message
 */
public static void showWarnAlert(String message) {
	Alert alert = new Alert(Alert.AlertType.WARNING);
	alert.setContentText(message);
	alert.show();
}
 

/**
 * 异常提示框
 * 
 * @param message
 */
public static void showErrorAlert(String message) {
	Alert alert = new Alert(Alert.AlertType.ERROR);
	alert.setContentText(message);
	alert.show();
}
 

private void showMessage(String message) {
  Alert alert = new Alert(Alert.AlertType.ERROR);
  alert.initOwner(this.getOwner());
  alert.setContentText(message);
  alert.show();
}
 

/**
 * 信息提示框
 * 
 * @param message
 */
public static void showInfoAlert(String message) {
	Alert alert = new Alert(Alert.AlertType.INFORMATION);
	alert.setContentText(message);
	alert.show();
}
 

/**
 * 注意提示框
 * 
 * @param message
 */
public static void showWarnAlert(String message) {
	Alert alert = new Alert(Alert.AlertType.WARNING);
	alert.setContentText(message);
	alert.show();
}
 

/**
 * 异常提示框
 * 
 * @param message
 */
public static void showErrorAlert(String message) {
	Alert alert = new Alert(Alert.AlertType.ERROR);
	alert.setContentText(message);
	alert.show();
}