下面列出了javafx.scene.control.Alert.AlertType#ERROR 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
private boolean validateDistanceData() {
boolean isValid = validateDistanceField(shooterDistance);
isValid = validateDistanceField(targetDistance) && isValid;
isValid = validateDistanceField(cameraDistance) && isValid;
isValid = validateDistanceField(targetWidth) && isValid;
isValid = validateDistanceField(targetHeight) && isValid;
if (!isValid) return isValid;
if ("0".equals(targetDistance.getText())) {
final Alert invalidDataAlert = new Alert(AlertType.ERROR);
final String message = "Target Distance cannot be 0, please set a value greater than 0.";
invalidDataAlert.setTitle("Invalid Target Distance");
invalidDataAlert.setHeaderText("Target Distance Cannot Be Zero");
invalidDataAlert.setResizable(true);
invalidDataAlert.setContentText(message);
invalidDataAlert.initOwner(getScene().getWindow());
invalidDataAlert.showAndWait();
isValid = false;
}
return isValid;
}
private void save()
{
DiagramTab diagramTab = getSelectedDiagramTab();
Optional<File> file = diagramTab.getFile();
if(!file.isPresent())
{
saveAs();
return;
}
try
{
PersistenceService.save(diagramTab.getDiagram(), file.get());
diagramTab.diagramSaved();
}
catch(IOException exception)
{
Alert alert = new Alert(AlertType.ERROR, RESOURCES.getString("error.save_file"), ButtonType.OK);
alert.initOwner(aMainStage);
alert.showAndWait();
}
}
public static void showErrorMessage(Exception ex, String title, String content) {
Alert alert = new Alert(AlertType.ERROR);
alert.setTitle("Error occured");
alert.setHeaderText(title);
alert.setContentText(content);
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
ex.printStackTrace(pw);
String exceptionText = sw.toString();
Label label = new Label("The exception stacktrace was:");
TextArea textArea = new TextArea(exceptionText);
textArea.setEditable(false);
textArea.setWrapText(true);
textArea.setMaxWidth(Double.MAX_VALUE);
textArea.setMaxHeight(Double.MAX_VALUE);
GridPane.setVgrow(textArea, Priority.ALWAYS);
GridPane.setHgrow(textArea, Priority.ALWAYS);
GridPane expContent = new GridPane();
expContent.setMaxWidth(Double.MAX_VALUE);
expContent.add(label, 0, 0);
expContent.add(textArea, 0, 1);
alert.getDialogPane().setExpandableContent(expContent);
alert.showAndWait();
}
@FXML
public void showPreferences() {
try {
FXMLLoader fxmlLoader = new FXMLLoader(
HomeScreenController.class.getResource( "Preferences.fxml" ),
null,
builderFactory,
(clazz) -> injector.getInstance(clazz));
Parent prefsScreen = fxmlLoader.load();
Scene scene = new Scene(prefsScreen, 1024, 768 );
Stage stage = new Stage();
stage.setScene( scene );
stage.setTitle( "Preferences" );
stage.show();
} catch(Exception exc) {
logger.error( "error showing preferences", exc);
Alert alert = new Alert(AlertType.ERROR);
alert.setTitle("Preferences");
alert.setHeaderText("Error showing Preferences");
alert.setContentText(exc.getMessage());
alert.showAndWait();
}
}
@Test
public void testDecorateDialogWithIcon() {
Alert dlg = new Alert(AlertType.ERROR);
assertFalse(alertHasIcons(dlg));
DialogUtils.decorateDialogWithIcon(dlg);
assertTrue(alertHasIcons(dlg));
}
private void showError(String title, String message) {
Alert alert = new Alert(AlertType.ERROR);
alert.setTitle(title);
alert.setHeaderText(null);
alert.setContentText(message);
alert.showAndWait();
}
/**
* Renames a node through the service and its underlying data provider.
* If there is a problem in the call to the remote JMasar service,
* the user is shown a suitable error dialog and the name of the node is restored.
* @param node The node being renamed
*/
private void renameNode(TreeItem<Node> node){
List<String> existingSiblingNodes =
node.getParent().getChildren().stream()
.filter(item -> item.getValue().getNodeType().equals(node.getValue().getNodeType()))
.map(item -> item.getValue().getName())
.collect(Collectors.toList());
TextInputDialog dialog = new TextInputDialog();
dialog.setTitle(Messages.promptRenameNodeTitle);
dialog.setContentText(Messages.promptRenameNodeContent);
dialog.setHeaderText(null);
dialog.getDialogPane().lookupButton(ButtonType.OK).setDisable(true);
dialog.getEditor().textProperty().setValue(node.getValue().getName());
dialog.getEditor().textProperty().addListener((observable, oldValue, newValue) -> {
String value = newValue.trim();
dialog.getDialogPane().lookupButton(ButtonType.OK)
.setDisable(existingSiblingNodes.contains(value) || value.isEmpty());
});
Optional<String> result = dialog.showAndWait();
if (result.isPresent()) {
node.getValue().setName(result.get());
try {
saveAndRestoreService.updateNode(node.getValue());
} catch (Exception e) {
Alert alert = new Alert(AlertType.ERROR);
alert.setTitle(Messages.errorActionFailed);
alert.setHeaderText(e.getMessage());
alert.showAndWait();
}
}
}
private void displayErrorMessage(String header, String message) {
Alert alert = new Alert(AlertType.ERROR);
alert.setTitle("Error");
alert.setHeaderText(header);
alert.setContentText(message);
alert.showAndWait();
}
private void createNewFolder(TreeItem<Node> parentTreeItem) {
List<String> existingFolderNames =
parentTreeItem.getChildren().stream()
.filter(item -> item.getValue().getNodeType().equals(NodeType.FOLDER))
.map(item -> item.getValue().getName())
.collect(Collectors.toList());
TextInputDialog dialog = new TextInputDialog();
dialog.setTitle(Messages.contextMenuNewFolder);
dialog.setContentText(Messages.promptNewFolder);
dialog.setHeaderText(null);
dialog.getDialogPane().lookupButton(ButtonType.OK).setDisable(true);
dialog.getEditor().textProperty().addListener((observable, oldValue, newValue) -> {
String value = newValue.trim();
dialog.getDialogPane().lookupButton(ButtonType.OK)
.setDisable(existingFolderNames.contains(value) || value.isEmpty());
});
Optional<String> result = dialog.showAndWait();
if (result.isPresent()) {
Node newFolderNode = Node.builder()
.name(result.get())
.build();
try {
Node newTreeNode = saveAndRestoreService
.createNode(parentTreeItem.getValue().getUniqueId(), newFolderNode);
parentTreeItem.getChildren().add(createNode(newTreeNode));
parentTreeItem.getChildren().sort((a, b) -> a.getValue().getName().compareTo(b.getValue().getName()));
parentTreeItem.setExpanded(true);
} catch (Exception e) {
Alert alert = new Alert(AlertType.ERROR);
alert.setTitle("Action failed");
alert.setHeaderText(e.getMessage());
alert.showAndWait();
}
}
}
/**
* Renames a node through the service and its underlying data provider.
* If there is a problem in the call to the remote JMasar service,
* the user is shown a suitable error dialog and the name of the node is restored.
* @param node The node being renamed
*/
private void renameNode(TreeItem<Node> node){
List<String> existingSiblingNodes =
node.getParent().getChildren().stream()
.filter(item -> item.getValue().getNodeType().equals(node.getValue().getNodeType()))
.map(item -> item.getValue().getName())
.collect(Collectors.toList());
TextInputDialog dialog = new TextInputDialog();
dialog.setTitle(Messages.promptRenameNodeTitle);
dialog.setContentText(Messages.promptRenameNodeContent);
dialog.setHeaderText(null);
dialog.getDialogPane().lookupButton(ButtonType.OK).setDisable(true);
dialog.getEditor().textProperty().setValue(node.getValue().getName());
dialog.getEditor().textProperty().addListener((observable, oldValue, newValue) -> {
String value = newValue.trim();
dialog.getDialogPane().lookupButton(ButtonType.OK)
.setDisable(existingSiblingNodes.contains(value) || value.isEmpty());
});
Optional<String> result = dialog.showAndWait();
if (result.isPresent()) {
node.getValue().setName(result.get());
try {
saveAndRestoreService.updateNode(node.getValue());
} catch (Exception e) {
Alert alert = new Alert(AlertType.ERROR);
alert.setTitle(Messages.errorActionFailed);
alert.setHeaderText(e.getMessage());
alert.showAndWait();
}
}
}
private void saveCircuitsInternal() {
try {
saveCircuits();
} catch(Exception exc) {
exc.printStackTrace();
Alert alert = new Alert(AlertType.ERROR);
alert.initOwner(stage);
alert.initModality(Modality.WINDOW_MODAL);
alert.setTitle("Error");
alert.setHeaderText("Error saving circuit.");
alert.setContentText("Error when saving the circuit: " + exc.getMessage());
alert.showAndWait();
}
}
public static void showErrorMessage(String title, String content) {
Alert alert = new Alert(AlertType.ERROR);
alert.setTitle("Error");
alert.setHeaderText(title);
alert.setContentText(content);
styleAlert(alert);
alert.showAndWait();
}
public ErrorDialogue(final I18nManager i18nManager, final I18nKey titleKey, final Throwable e, final String... messages) {
alert = new Alert(AlertType.ERROR);
alert.setTitle(i18nManager.text(titleKey));
alert.setHeaderText(headerText(messages));
TextArea textArea = new TextArea(exceptionText(e));
VBox expContent = new VBox();
DialogPane dialoguePane = alert.getDialogPane();
expContent.getChildren().setAll(new Label(i18nManager.text(ERROR_DETAILS)), textArea);
dialoguePane.setExpandableContent(expContent);
dialoguePane.expandedProperty().addListener(p -> Platform.runLater(this::resizeAlert));
dialoguePane.setId("errorDialogue");
}
public static void showErrorDialog(String message, Exception e) {
Alert alert = new Alert(AlertType.ERROR, message + " \n" + e.getMessage());
alert.showAndWait();
}
public Optional<Camera> registerIpCam(String cameraName, String cameraURL, Optional<String> username,
Optional<String> password) {
try {
final URL url = new URL(cameraURL);
final Camera cam = IpCamera.registerIpCamera(cameraName, url, username, password);
ipcams.put(cameraName, url);
if (username.isPresent() && password.isPresent()) {
ipcamCredentials.put(cameraName, username.get() + "|" + password.get());
}
return Optional.of(cam);
} catch (MalformedURLException | URISyntaxException ue) {
final Alert ipcamURLAlert = new Alert(AlertType.ERROR);
ipcamURLAlert.setTitle("Malformed URL");
ipcamURLAlert.setHeaderText("IPCam URL is Malformed!");
ipcamURLAlert.setResizable(true);
ipcamURLAlert.setContentText("IPCam URL is not valid: \n\n" + ue.getMessage());
ipcamURLAlert.showAndWait();
} catch (final UnknownHostException uhe) {
final Alert ipcamHostAlert = new Alert(AlertType.ERROR);
ipcamHostAlert.setTitle("Unknown Host");
ipcamHostAlert.setHeaderText("IPCam URL Unknown!");
ipcamHostAlert.setResizable(true);
ipcamHostAlert.setContentText("The IPCam at " + cameraURL
+ " cannot be resolved. Ensure the URL is correct "
+ "and that you are either connected to the internet or on the same network as the camera.");
ipcamHostAlert.showAndWait();
} catch (final TimeoutException te) {
final Alert ipcamTimeoutAlert = new Alert(AlertType.ERROR);
ipcamTimeoutAlert.setTitle("IPCam Timeout");
ipcamTimeoutAlert.setHeaderText("Connection to IPCam Reached Timeout!");
ipcamTimeoutAlert.setResizable(true);
ipcamTimeoutAlert.setContentText("Could not communicate with the IP at " + cameraURL
+ ". Please check the following:\n\n" + "-The IPCam URL is correct\n"
+ "-You are connected to the Internet (for external cameras)\n"
+ "-You are connected to the same network as the camera (for local cameras)");
ipcamTimeoutAlert.showAndWait();
}
return Optional.empty();
}
@FXML
public void disconnect() {
if( !connected.get() ) {
if( logger.isWarnEnabled() ) {
logger.warn("client not connected; skipping disconnect");
}
return;
}
if( logger.isDebugEnabled() ) {
logger.debug("[DISCONNECT]");
}
Task<Void> task = new Task<Void>() {
@Override
protected Void call() throws Exception {
updateMessage("Disconnecting");
updateProgress(0.1d, 1.0d);
channel.close().sync();
updateMessage("Closing group");
updateProgress(0.5d, 1.0d);
group.shutdownGracefully().sync();
return null;
}
@Override
protected void succeeded() {
connected.set(false);
}
@Override
protected void failed() {
connected.set(false);
Throwable t = getException();
logger.error( "client disconnect error", t );
Alert alert = new Alert(AlertType.ERROR);
alert.setTitle("Client");
alert.setHeaderText( t.getClass().getName() );
alert.setContentText( t.getMessage() );
alert.showAndWait();
}
};
hboxStatus.visibleProperty().bind( task.runningProperty() );
lblStatus.textProperty().bind( task.messageProperty() );
piStatus.progressProperty().bind(task.progressProperty());
new Thread(task).start();
}
private void handleNewSaveSet(TreeItem<Node> parentTreeItem){
List<String> existingFolderNames =
parentTreeItem.getChildren().stream()
.filter(item -> item.getValue().getNodeType().equals(NodeType.CONFIGURATION))
.map(item -> item.getValue().getName())
.collect(Collectors.toList());
TextInputDialog dialog = new TextInputDialog();
dialog.setTitle(Messages.promptNewSaveSetTitle);
dialog.setContentText(Messages.promptNewSaveSetContent);
dialog.setHeaderText(null);
dialog.getDialogPane().lookupButton(ButtonType.OK).setDisable(true);
dialog.getEditor().textProperty().addListener((observable, oldValue, newValue) -> {
String value = newValue.trim();
dialog.getDialogPane().lookupButton(ButtonType.OK)
.setDisable(existingFolderNames.contains(value) || value.isEmpty());
});
Optional<String> result = dialog.showAndWait();
if (result.isPresent()) {
Node newSateSetNode = Node.builder()
.nodeType(NodeType.CONFIGURATION)
.name(result.get())
.build();
try {
Node newTreeNode = saveAndRestoreService
.createNode(treeView.getSelectionModel().getSelectedItem().getValue().getUniqueId(), newSateSetNode);
TreeItem<Node> newSaveSetNode = createNode(newTreeNode);
parentTreeItem.getChildren().add(newSaveSetNode);
parentTreeItem.getChildren().sort((a, b) -> a.getValue().getName().compareTo(b.getValue().getName()));
parentTreeItem.setExpanded(true);
nodeDoubleClicked(newSaveSetNode);
treeView.getSelectionModel().select(treeView.getRow(newSaveSetNode));
} catch (Exception e) {
Alert alert = new Alert(AlertType.ERROR);
alert.setTitle("Action failed");
alert.setHeaderText(e.getMessage());
alert.showAndWait();
}
}
}
private void handleNewSaveSet(TreeItem<Node> parentTreeItem){
List<String> existingFolderNames =
parentTreeItem.getChildren().stream()
.filter(item -> item.getValue().getNodeType().equals(NodeType.CONFIGURATION))
.map(item -> item.getValue().getName())
.collect(Collectors.toList());
TextInputDialog dialog = new TextInputDialog();
dialog.setTitle(Messages.promptNewSaveSetTitle);
dialog.setContentText(Messages.promptNewSaveSetContent);
dialog.setHeaderText(null);
dialog.getDialogPane().lookupButton(ButtonType.OK).setDisable(true);
dialog.getEditor().textProperty().addListener((observable, oldValue, newValue) -> {
String value = newValue.trim();
dialog.getDialogPane().lookupButton(ButtonType.OK)
.setDisable(existingFolderNames.contains(value) || value.isEmpty());
});
Optional<String> result = dialog.showAndWait();
if (result.isPresent()) {
Node newSateSetNode = Node.builder()
.nodeType(NodeType.CONFIGURATION)
.name(result.get())
.build();
try {
Node newTreeNode = saveAndRestoreService
.createNode(treeView.getSelectionModel().getSelectedItem().getValue().getUniqueId(), newSateSetNode);
TreeItem<Node> newSaveSetNode = createNode(newTreeNode);
parentTreeItem.getChildren().add(newSaveSetNode);
parentTreeItem.getChildren().sort((a, b) -> a.getValue().getName().compareTo(b.getValue().getName()));
parentTreeItem.setExpanded(true);
nodeDoubleClicked(newSaveSetNode);
treeView.getSelectionModel().select(treeView.getRow(newSaveSetNode));
} catch (Exception e) {
Alert alert = new Alert(AlertType.ERROR);
alert.setTitle("Action failed");
alert.setHeaderText(e.getMessage());
alert.showAndWait();
}
}
}
@FXML
public void send() {
if( logger.isDebugEnabled() ) {
logger.debug("[SEND]");
}
if( !connected.get() ) {
if( logger.isWarnEnabled() ) {
logger.warn("client not connected; skipping write");
}
return;
}
final String toSend = tfSend.getText();
Task<Void> task = new Task<Void>() {
@Override
protected Void call() throws Exception {
ChannelFuture f = channel.writeAndFlush( Unpooled.copiedBuffer(toSend, CharsetUtil.UTF_8) );
f.sync();
return null;
}
@Override
protected void failed() {
Throwable exc = getException();
logger.error( "client send error", exc );
Alert alert = new Alert(AlertType.ERROR);
alert.setTitle("Client");
alert.setHeaderText( exc.getClass().getName() );
alert.setContentText( exc.getMessage() );
alert.showAndWait();
connected.set(false);
}
};
hboxStatus.visibleProperty().bind( task.runningProperty() );
lblStatus.textProperty().bind( task.messageProperty() );
piStatus.progressProperty().bind(task.progressProperty());
new Thread(task).start();
}
@FXML
public void disconnect() {
if( !connected.get() ) {
if( logger.isWarnEnabled() ) {
logger.warn("client not connected; skipping disconnect");
}
return;
}
if( logger.isDebugEnabled() ) {
logger.debug("[DISCONNECT]");
}
Task<Void> task = new Task<Void>() {
@Override
protected Void call() throws Exception {
updateMessage("Disconnecting");
updateProgress(0.1d, 1.0d);
channel.close().sync();
updateMessage("Closing group");
updateProgress(0.5d, 1.0d);
group.shutdownGracefully().sync();
return null;
}
@Override
protected void succeeded() {
connected.set(false);
}
@Override
protected void failed() {
connected.set(false);
Throwable t = getException();
logger.error( "client disconnect error", t );
Alert alert = new Alert(AlertType.ERROR);
alert.setTitle("Client");
alert.setHeaderText( t.getClass().getName() );
alert.setContentText( t.getMessage() );
alert.showAndWait();
}
};
hboxStatus.visibleProperty().bind( task.runningProperty() );
lblStatus.textProperty().bind( task.messageProperty() );
piStatus.progressProperty().bind(task.progressProperty());
new Thread(task).start();
}