javafx.event.EventHandler Java Examples

public WizardStageDialog(@Nullable Stage primaryStage, @Nullable String title, boolean hasHelp, @NotNull WizardStep... wizardSteps) {
	super(primaryStage, new StackPane(), title, true, true, hasHelp);


	wizardStepsReadOnly = new ReadOnlyList<>(wizardSteps);

	btnPrevious = new Button(Lang.ApplicationBundle().getString("Wizards.previous"));
	btnPrevious.setOnAction(new EventHandler<ActionEvent>() {
		@Override
		public void handle(ActionEvent event) {
			goBackwardStep();
		}
	});

	btnPrevious.setPrefWidth(GenericResponseFooter.PREFFERED_BUTTON_OK_WIDTH);
	footer.getRightContainer().getChildren().add(1, btnPrevious);
	footer.btnOk.setText(Lang.ApplicationBundle().getString("Wizards.next"));

	Collections.addAll(this.wizardSteps, wizardSteps);

	for (WizardStep step : wizardSteps) {
		addWizardStep(step);
	}
	btnPrevious.setDisable(true);
}
 

public static EventHandler<KeyEvent> keyPressedHandler(
		final PainteraGateway gateway,
		final Node target,
		Consumer<Exception> exceptionHandler,
		Predicate<KeyEvent> check,
		final String menuText,
		final PainteraBaseView viewer,
		final Supplier<String> projectDirectory,
		final DoubleSupplier x,
		final DoubleSupplier y)
{

	return event -> {
		if (check.test(event))
		{
			event.consume();
			OpenDialogMenu m = gateway.openDialogMenu();
			Optional<ContextMenu> cm = m.getContextMenu(menuText, viewer, projectDirectory, exceptionHandler);
			Bounds bounds = target.localToScreen(target.getBoundsInLocal());
			cm.ifPresent(menu -> menu.show(target, x.getAsDouble() + bounds.getMinX(), y.getAsDouble() + bounds.getMinY()));
		}
	};

}
 

private void init(Stage primaryStage) {
    Group root = new Group();
    primaryStage.setScene(new Scene(root));
    root.getChildren().add(createChart());
    // create timeline to add new data every 60th of second
    animation = new Timeline();
    animation.getKeyFrames().add(new KeyFrame(Duration.millis(1000/60), new EventHandler<ActionEvent>() {
        @Override public void handle(ActionEvent actionEvent) {
            // 6 minutes data per frame
            for(int count=0; count < 6; count++) {
                nextTime();
                plotTime();
            }
        }
    }));
    animation.setCycleCount(Animation.INDEFINITE);
}
 

private void handleCronEvent(JobExecutionContext context) {
	ResolutionService service = new ResolutionService();

	service.setOnFailed(new EventHandler<WorkerStateEvent>() {
		@Override
		public void handle(WorkerStateEvent event) {
			Throwable t = event.getSource().getException();

			if (t != null) {
				// connection failed
				AppUtils.showErrorDialog(t.getMessage());
			}
		}
	});

	// run on application thread
	service.start();
}
 

private void initPicker(WebView webView) {
  // attach a handler for an alert function call which will set the DatePicker's date property.
  webView.getEngine().setOnAlert(new EventHandler<WebEvent<String>>() {
    @Override public void handle(WebEvent<String> event) {
      try { date.set(jQueryUiDateFormat.parse(event.getData())); } catch (ParseException e) { /* no action required */ }
    }
  });

  // place the webView holding the jQuery date picker inside this node.
  this.getChildren().add(webView);

  // monitor the date for changes and update the formatted date string to keep it in sync.
  date.addListener(new ChangeListener<Date>() {
    @Override public void changed(ObservableValue<? extends Date> observableValue, Date oldDate, Date newDate) {
      dateString.set(dateFormat.format(newDate));
    }
  });

  // workaround as I don't know how to size the stack to the size of the enclosed WebPane's html content.
  this.setMaxSize(330, 280);//307, 241);
}
 

public EditorTreeViewEditContextMenu(@NotNull EditorComponentTreeView<? extends UINodeTreeItemData> treeView,
									 @NotNull FolderTreeItemEntry entryClicked) {
	ResourceBundle bundle = Lang.ApplicationBundle();

	MenuItem miRename = new MenuItem(bundle.getString("ContextMenu.DefaultComponent.rename"));
	miRename.setOnAction(new EventHandler<ActionEvent>() {
		@Override
		public void handle(ActionEvent event) {
			NameInputFieldDialog<StringChecker, String> dialog = new NameInputFieldDialog<>(
					miRename.getText(), miRename.getText(),
					new StringChecker()
			);
			dialog.getInputField().getValueObserver().updateValue(entryClicked.getText());
			dialog.getInputField().selectAll();
			dialog.show();
			String value = dialog.getInputField().getValue();
			if (dialog.wasCancelled() || value == null) {
				return;
			}
			entryClicked.setText(value);
		}
	});
	getItems().add(miRename);

	addCommon(treeView, entryClicked, bundle);
}
 

private Node createArrow(final boolean left) {
	// shape
	final Polygon arrow = new Polygon();
	arrow.getPoints().addAll(left ? LEFT_ARROW_POINTS : RIGHT_ARROW_POINTS);
	// style
	arrow.setStrokeWidth(ARROW_STROKE_WIDTH);
	arrow.setStroke(ARROW_STROKE);
	arrow.setFill(ARROW_FILL);
	// effect
	effectOnHover(arrow, new DropShadow(DROP_SHADOW_RADIUS, getHighlightColor()));
	// action
	arrow.setOnMouseClicked(new EventHandler<MouseEvent>() {
		@Override
		public void handle(MouseEvent event) {
			traverse(left);
		}
	});
	return arrow;
}
 

private void initialize() {
	getStyleClass().setAll(DEFAULT_STYLE_CLASS);
	setAccessibleRole(AccessibleRole.TOGGLE_BUTTON);
	// alignment is styleable through css. Calling setAlignment
	// makes it look to css like the user set the value and css will not
	// override. Initializing alignment by calling set on the
	// CssMetaData ensures that css will be able to override the value.
	((StyleableProperty<Pos>) (WritableValue<Pos>) alignmentProperty()).applyStyle(null, Pos.CENTER);

	this.addEventHandler(MouseEvent.MOUSE_CLICKED, new EventHandler<MouseEvent>() {

		@Override
		public void handle(MouseEvent event) {
			doSelected();
		}
	});
}
 

private void iniEvent() {
    topBox.setOnMouseClicked(new EventHandler<MouseEvent>() {
        @Override
        public void handle(MouseEvent event) {
        	if(event.getButton()==MouseButton.PRIMARY) {
        		if (isShow) {
                    isShow = false;
                    imageView.setImage(closed);
                    ListNodePanel.this.getChildren().remove(box);
                } else {
                    isShow = true;
                    imageView.setImage(open);
                    ListNodePanel.this.getChildren().add(box);
                }
        	}
        }
    });
}
 

public final ObjectProperty<EventHandler<InternalWindowEvent>> onDetachingProperty() {
    if (onDetaching == null) {
        onDetaching = new ObjectPropertyBase<EventHandler<InternalWindowEvent>>() {
            @Override
            protected void invalidated() {
                setEventHandler(InternalWindowEvent.WINDOW_DETACHING, get());
            }

            @Override
            public Object getBean() {
                return InternalWindow.this;
            }

            @Override
            public String getName() {
                return "onDetaching";
            }
        };
    }
    return onDetaching;
}
 

/**
 * Creates an {@link EventHandler} for hover {@link MouseEvent}s. The
 * handler will search for a target part within the given {@link IViewer}
 * and notify all hover policies of that target part about hover changes.
 * <p>
 * If no target part can be identified, then the root part of the given
 * {@link IViewer} is used as the target part.
 *
 * @return The {@link EventHandler} that handles hover changes for the given
 *         {@link IViewer}.
 */
protected EventHandler<MouseEvent> createHoverFilter() {
	return new EventHandler<MouseEvent>() {
		@Override
		public void handle(MouseEvent event) {
			updateHoverIntentPosition(event);
			if (!isHoverEvent(event)) {
				return;
			}
			EventTarget eventTarget = event.getTarget();
			if (eventTarget instanceof Node) {
				IViewer viewer = PartUtils.retrieveViewer(getDomain(),
						(Node) eventTarget);
				if (viewer != null) {
					notifyHover(viewer, event, (Node) eventTarget);
				}
				updateHoverIntent(event, (Node) eventTarget);
			}
		}
	};
}
 

/**
 * 初始化中间工具按钮
 */
private void initMiddleToolBar() {
	// 字体设置按钮
	Image normalImage = ImageBox.getImageClassPath("/resources/chat/images/middletoolbar/aio_quickbar_font.png");
	Image hoverImage = ImageBox.getImageClassPath("/resources/chat/images/middletoolbar/aio_quickbar_font_hover.png");
	Image pressedImage = ImageBox.getImageClassPath("/resources/chat/images/middletoolbar/aio_quickbar_font_hover.png");

	IconPane iconButton = new IconPane(normalImage, hoverImage, pressedImage);
	iconButton.setOnMouseClicked(new EventHandler<MouseEvent>() {

		@Override
		public void handle(MouseEvent event) {
			showFontBox = !showFontBox;
			showFontBox(showFontBox);
		}
	});
	this.addMiddleTool(iconButton);
}
 

@SuppressWarnings("rawtypes")
public void fireSectionEvent(final SectionEvent EVENT) {
       final EventHandler<SectionEvent> HANDLER;
       final EventType                  TYPE = EVENT.getEventType();
       if (SectionEvent.TILES_FX_SECTION_ENTERED == TYPE) {
           HANDLER = getOnSectionEntered();
       } else if (SectionEvent.TILES_FX_SECTION_LEFT == TYPE) {
           HANDLER = getOnSectionLeft();
       } else if (SectionEvent.TILES_FX_SECTION_UPDATE == TYPE) {
           HANDLER = getOnSectionUpdate();
       } else {
           HANDLER = null;
       }

       if (null == HANDLER) return;

       HANDLER.handle(EVENT);
   }
 

@Override
public void start(Stage primaryStage) {
    Button btn = new Button();
    btn.setText("Say 'Hello World'");
    btn.setOnAction(new EventHandler<ActionEvent>() {
        
        @Override
        public void handle(ActionEvent event) {
            System.out.println("Hello World!");
        }
    });
    
    StackPane root = new StackPane();
    root.getChildren().add(btn);
    
    Scene scene = new Scene(root, 300, 250);
    
    primaryStage.setTitle("Hello World!");
    primaryStage.setScene(scene);
    primaryStage.show();
}
 

public void addMenuItem(final String iconPath,
    final EventHandler<MouseEvent> eventHandler) {

final RadialGradient backGradient = new RadialGradient(0, 0, 0, 0,
	radius.get(), false, CycleMethod.NO_CYCLE, new Stop(0,
		BACK_GRADIENT_COLOR), new Stop(1, Color.TRANSPARENT));

final RadialGradient backSelectGradient = new RadialGradient(0, 0, 0,
	0, radius.get(), false, CycleMethod.NO_CYCLE, new Stop(0,
		BACK_SELECT_GRADIENT_COLOR), new Stop(1,
		Color.TRANSPARENT));

final RadialMenuItem item = RadialMenuItemBuilder.create()
	.length(length).graphic(new Group(getImageView(iconPath)))
	.backgroundFill(backGradient)
	.backgroundMouseOnFill(backSelectGradient)
	.innerRadius(innerRadius).radius(radius).offset(offset)
	.clockwise(true).backgroundVisible(true).strokeVisible(false)
	.build();

item.setOnMouseClicked(eventHandler);

items.add(item);
itemsContainer.getChildren().addAll(item);
   }
 

private EventHandler<MouseEvent> buildMouseEvent(Group panel) {
    return event -> {
        Figure3T rect = (Figure3T) event.getTarget();
        if (this.checkState()) {
            if (event.getButton() == MouseButton.PRIMARY) {
                rect.take(true);
                panel.getChildren().add(
                        this.buildMarkX(rect.getX(), rect.getY(), 50)
                );
            } else {
                rect.take(false);
                panel.getChildren().add(
                        this.buildMarkO(rect.getX(), rect.getY(), 50)
                );
            }
            this.checkWinner();
            this.checkState();
        }
    };
}
 

/**
 * Creates a pop over with a label as the content node.
 */
public PopOver() {
    super();

    getStyleClass().add(DEFAULT_STYLE_CLASS);

    setAnchorLocation(AnchorLocation.WINDOW_TOP_LEFT);
    setOnHiding(new EventHandler<WindowEvent>() {
        @Override
        public void handle(WindowEvent evt) {
            setDetached(false);
        }
    });

    /*
     * Create some initial content.
     */
    Label label = new Label("<No Content>"); //$NON-NLS-1$
    label.setPrefSize(200, 200);
    label.setPadding(new Insets(4));
    setContentNode(label);

    ChangeListener<Object> repositionListener = new ChangeListener<Object>() {
        @Override
        public void changed(ObservableValue<? extends Object> value,
                            Object oldObject, Object newObject) {
            if (isShowing() && !isDetached()) {
                show(getOwnerNode(), targetX, targetY);
                adjustWindowLocation();
            }
        }
    };

    arrowSize.addListener(repositionListener);
    cornerRadius.addListener(repositionListener);
    arrowLocation.addListener(repositionListener);
    arrowIndent.addListener(repositionListener);
}
 

public static void addListenerDeeply(Node node, EventHandler<MouseEvent> listener) {
    node.addEventHandler(MouseEvent.MOUSE_MOVED, listener);
    node.addEventHandler(MouseEvent.MOUSE_PRESSED, listener);
    node.addEventHandler(MouseEvent.MOUSE_DRAGGED, listener);
    if (node instanceof Parent) {
        Parent parent = (Parent) node;
        ObservableList<Node> children = parent.getChildrenUnmodifiable();
        for (Node child : children) {
            addListenerDeeply(child, listener);
        }
    }
}
 

@Override
public Scene createScene() {
	Scene scene = new Scene(new Group(new Rectangle(50, 50)), 400, 400);
	scene.addEventFilter(InputEvent.ANY, new EventHandler<InputEvent>() {
		@Override
		public void handle(InputEvent event) {
			System.out.println(event);
		}
	});
	return scene;
}
 

@SuppressWarnings({ "unchecked" }) private EventHandler<ActionEvent> forceExpandCollapse(final TreeItem<SVNode> node, @SuppressWarnings("rawtypes") final List filter, final Object data, final boolean remove, final boolean expandIfRemoved) {
    return e -> {
        if (remove) {
            filter.remove(data);
            // This is not completely correct but...
            scenicView.forceUpdate();
        } else {
            filter.add(data);
            scenicView.forceUpdate();
        }
    };
}
 

@Override
public Region createNode(T value, EventHandler<KeyEvent> keyEventsHandler, ChangeListener<Boolean> focusChangeListener) {
    textField = value == null ? new JFXTextField() : new JFXTextField(String.valueOf(value));
    textField.setOnKeyPressed(keyEventsHandler);
    textField.getValidators().addAll(validators);
    textField.focusedProperty().addListener(focusChangeListener);
    return textField;
}
 

public DataSelectionPanel() {
    this.setPadding( new Insets( 5 , 5 , 5 , 5 ) );

    GridPane pnlCenter = new GridPane();
    pnlCenter.setHgap( 5 );
    this.cboSelectData.setPrefWidth( 0 );
    pnlCenter.addRow( 0 , this.lblData , this.cboSelectData , this.cmdConfigure );

    ColumnConstraints allowResize = new ColumnConstraints();
    allowResize.setHgrow( Priority.ALWAYS );
    ColumnConstraints noResize = new ColumnConstraints();
    pnlCenter.getColumnConstraints().addAll( noResize , allowResize , noResize );

    this.setCenter( pnlCenter );

    //allow the combo box to stretch out and fill panel completely
    this.cboSelectData.setMaxSize( Double.MAX_VALUE , Double.MAX_VALUE );
    this.cboSelectData.setEditable( true );

    //watches for when the user selects a new data formula
    cboSelectData.valueProperty().addListener( new ChangeListener< String >() {

        @Override
        public void changed(ObservableValue<? extends String> observable, String oldValue, String newValue) {
            pnlGraph.setFormula(newValue);
        }

    });

    this.cmdConfigure.setOnAction( new EventHandler< ActionEvent >() {

        @Override
        public void handle(ActionEvent event) {
            openConfigurationPanel();
        }

    });
}
 

public StageSample() {
    //create a button for initializing our new stage
    Button button = new Button("Create a Stage");
    button.setStyle("-fx-font-size: 24;");
    button.setDefaultButton(true);
    button.setOnAction(new EventHandler<ActionEvent>() {
        @Override public void handle(ActionEvent t) {
            final Stage stage = new Stage();
            //create root node of scene, i.e. group
            Group rootGroup = new Group();
            //create scene with set width, height and color
            Scene scene = new Scene(rootGroup, 200, 200, Color.WHITESMOKE);
            //set scene to stage
            stage.setScene(scene);
            //center stage on screen
            stage.centerOnScreen();
            //show the stage
            stage.show();
            //add some node to scene
            Text text = new Text(20, 110, "JavaFX");
            text.setFill(Color.DODGERBLUE);
            text.setEffect(new Lighting());
            text.setFont(Font.font(Font.getDefault().getFamily(), 50));
            //add text to the main root group
            rootGroup.getChildren().add(text);
        }
    });
    getChildren().add(button);
}
 

public SimpleHSBColorPicker() {
    getChildren().addAll(hsbRect,lightRect);
    lightRect.setStroke(Color.GRAY);
    lightRect.setStrokeType(StrokeType.OUTSIDE);
    EventHandler<MouseEvent> ml = new EventHandler<MouseEvent>() {
        @Override public void handle(MouseEvent e) {
            double w = getWidth();
            double h = getHeight();
            double x = Math.min(w, Math.max(0, e.getX()));
            double y = Math.min(h, Math.max(0, e.getY()));
            double hue = (360/w)*x;
            double vert = (1/h)*y;
            double sat = 0;
            double bright = 0;
            if (vert<0.5) {
                bright = 1;
                sat = vert * 2;
            } else {
                bright = sat = 1- ((vert-0.5)*2);
            }
            // convert back to color
            Color c =  Color.hsb((int)hue,sat,bright);
            color.set(c);
            e.consume();
        }
    };
    lightRect.setOnMouseDragged(ml);
    lightRect.setOnMouseClicked(ml);
}
 

@Override
public Scene createScene() {
	Scene scene = new Scene(new Group(), 400, 400);
	scene.addEventFilter(InputEvent.ANY, new EventHandler<InputEvent>() {
		@Override
		public void handle(InputEvent event) {
			System.out.println(event);
		}
	});
	return scene;
}
 

public AdvancedStockLineChartSample() {
    getChildren().add(createChart());
    // create timeline to add new data every 60th of second
    animation = new Timeline();
    animation.getKeyFrames().add(new KeyFrame(Duration.millis(1000/60), new EventHandler<ActionEvent>() {
        @Override public void handle(ActionEvent actionEvent) {
            // 6 minutes data per frame
            for(int count=0; count < 6; count++) {
                nextTime();
                plotTime();
            }
        }
    }));
    animation.setCycleCount(Animation.INDEFINITE);
}
 

@Override
public void start(Stage preloaderStage) throws Exception {
	this.preloaderStage = preloaderStage;
	preloaderStage.setOnCloseRequest(new EventHandler<WindowEvent>() {
		@Override
		public void handle(WindowEvent event) {
			System.exit(0);
		}
	});

	preloaderStage.setTitle(Lang.Application.APPLICATION_TITLE);
	preloaderStage.getIcons().add(ADCIcons.ICON_ADC);
	progressIndicator.setMaxWidth(48d);
	progressIndicator.setMaxHeight(progressIndicator.getMaxWidth());

	VBox vBox = new VBox(5, progressIndicator, lblProgressText);
	vBox.setAlignment(Pos.CENTER);
	VBox.setVgrow(progressIndicator, Priority.ALWAYS);

	Label lblBuild = new Label("Build: " + ArmaDialogCreator.getManifest().getMainAttributes().getValue("Build-Number"));
	Label lblVersion = new Label("Version: " + ArmaDialogCreator.getManifest().getMainAttributes().getValue("Specification-Version"));
	BorderPane borderPane = new BorderPane(vBox, null, null, new HBox(10, lblBuild, lblVersion), null);
	borderPane.setPadding(new Insets(5));

	StackPane.setMargin(borderPane, new Insets(248, 0, 0, 0));
	StackPane stackpane = new StackPane(new ImageView(ADCImagePaths.PRELOAD_SCREEN), borderPane);
	Scene scene = new Scene(stackpane);
	preloaderStage.initStyle(StageStyle.UNDECORATED);
	preloaderStage.setScene(scene);
	preloaderStage.sizeToScene();
	preloaderStage.show();
}
 

/**
 * Add menu item to table rightclickMenu
 *
 * @param action
 */
private void addMenuItem(StreamTableAction action) {
    MenuItem item = new MenuItem(action.getTitle());
    item.setOnAction(new EventHandler<ActionEvent>() {
        @Override
        public void handle(ActionEvent event) {
            handleStreamTableAction(action);
        }
    });
    rightClickMenu.getItems().add(item);
}
 

private void fireEvent(PreferencesFxEvent event) {
  List<EventHandler<? super PreferencesFxEvent>> list =
      this.eventHandlers.get(event.getEventType());
  if (list == null) {
    return;
  }
  for (EventHandler<? super PreferencesFxEvent> eventHandler : list) {
    if (!event.isConsumed()) {
      eventHandler.handle(event);
    }
  }
}
 

private static void addListenerDeeply(Node node, EventHandler<MouseEvent> listener) {
    node.addEventHandler(MouseEvent.MOUSE_MOVED, listener);
    node.addEventHandler(MouseEvent.MOUSE_PRESSED, listener);
    node.addEventHandler(MouseEvent.MOUSE_DRAGGED, listener);
    node.addEventHandler(MouseEvent.MOUSE_EXITED, listener);
    node.addEventHandler(MouseEvent.MOUSE_EXITED_TARGET, listener);
    if (node instanceof Parent) {
        Parent parent = (Parent) node;
        ObservableList<Node> children = parent.getChildrenUnmodifiable();
        for (Node child : children) {
            addListenerDeeply(child, listener);
        }
    }
}