Java tutorial
/* * Copyright (c) 2012 Oracle and/or its affiliates. * All rights reserved. Use is subject to license terms. * * This file is available and licensed under the following license: * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the distribution. * - Neither the name of Oracle nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ import javafx.application.Application; import javafx.beans.binding.Bindings; import javafx.beans.property.BooleanProperty; import javafx.beans.property.SimpleBooleanProperty; import javafx.collections.FXCollections; import javafx.event.ActionEvent; import javafx.event.EventHandler; import javafx.geometry.Insets; import javafx.geometry.Pos; import javafx.scene.Group; import javafx.scene.Node; import javafx.scene.Scene; import javafx.scene.control.Button; import javafx.scene.control.CheckBox; import javafx.scene.control.ChoiceBox; import javafx.scene.control.Label; import javafx.scene.control.PasswordField; import javafx.scene.control.ProgressIndicator; import javafx.scene.control.RadioButton; import javafx.scene.control.Slider; import javafx.scene.control.TextField; import javafx.scene.control.ToggleGroup; import javafx.scene.control.Tooltip; import javafx.scene.input.MouseEvent; import javafx.scene.layout.BorderPane; import javafx.scene.layout.HBox; import javafx.scene.layout.Pane; import javafx.scene.layout.Region; import javafx.scene.layout.VBox; import javafx.stage.Stage; public class Main extends Application { private final BooleanProperty dragModeActiveProperty = new SimpleBooleanProperty(this, "dragModeActive", true); @Override public void start(final Stage stage) { final Node loginPanel = makeDraggable(createLoginPanel()); final Node confirmationPanel = makeDraggable(createConfirmationPanel()); final Node progressPanel = makeDraggable(createProgressPanel()); loginPanel.relocate(0, 0); confirmationPanel.relocate(0, 67); progressPanel.relocate(0, 106); final Pane panelsPane = new Pane(); panelsPane.getChildren().addAll(loginPanel, confirmationPanel, progressPanel); final BorderPane sceneRoot = new BorderPane(); BorderPane.setAlignment(panelsPane, Pos.TOP_LEFT); sceneRoot.setCenter(panelsPane); final CheckBox dragModeCheckbox = new CheckBox("Drag mode"); BorderPane.setMargin(dragModeCheckbox, new Insets(6)); sceneRoot.setBottom(dragModeCheckbox); dragModeActiveProperty.bind(dragModeCheckbox.selectedProperty()); final Scene scene = new Scene(sceneRoot, 400, 300); stage.setScene(scene); stage.setTitle("Draggable Panels Example"); stage.show(); } public static void main(final String[] args) { launch(args); } private Node makeDraggable(final Node node) { final DragContext dragContext = new DragContext(); final Group wrapGroup = new Group(node); wrapGroup.addEventFilter(MouseEvent.ANY, new EventHandler<MouseEvent>() { public void handle(final MouseEvent mouseEvent) { if (dragModeActiveProperty.get()) { // disable mouse events for all children mouseEvent.consume(); } } }); wrapGroup.addEventFilter(MouseEvent.MOUSE_PRESSED, new EventHandler<MouseEvent>() { public void handle(final MouseEvent mouseEvent) { if (dragModeActiveProperty.get()) { // remember initial mouse cursor coordinates // and node position dragContext.mouseAnchorX = mouseEvent.getX(); dragContext.mouseAnchorY = mouseEvent.getY(); dragContext.initialTranslateX = node.getTranslateX(); dragContext.initialTranslateY = node.getTranslateY(); } } }); wrapGroup.addEventFilter(MouseEvent.MOUSE_DRAGGED, new EventHandler<MouseEvent>() { public void handle(final MouseEvent mouseEvent) { if (dragModeActiveProperty.get()) { // shift node from its initial position by delta // calculated from mouse cursor movement node.setTranslateX( dragContext.initialTranslateX + mouseEvent.getX() - dragContext.mouseAnchorX); node.setTranslateY( dragContext.initialTranslateY + mouseEvent.getY() - dragContext.mouseAnchorY); } } }); return wrapGroup; } private static Node createLoginPanel() { final ToggleGroup toggleGroup = new ToggleGroup(); final TextField textField = new TextField(); textField.setPrefColumnCount(10); textField.setPromptText("Your name"); final PasswordField passwordField = new PasswordField(); passwordField.setPrefColumnCount(10); passwordField.setPromptText("Your password"); final ChoiceBox<String> choiceBox = new ChoiceBox<String>(FXCollections.observableArrayList("English", "\u0420\u0443\u0441\u0441\u043a\u0438\u0439", "Fran\u00E7ais")); choiceBox.setTooltip(new Tooltip("Your language")); choiceBox.getSelectionModel().select(0); final HBox panel = createHBox(6, createVBox(2, createRadioButton("High", toggleGroup, true), createRadioButton("Medium", toggleGroup, false), createRadioButton("Low", toggleGroup, false)), createVBox(2, textField, passwordField), choiceBox); panel.setAlignment(Pos.BOTTOM_LEFT); configureBorder(panel); return panel; } private static Node createConfirmationPanel() { final Label acceptanceLabel = new Label("Not Available"); final Button acceptButton = new Button("Accept"); acceptButton.setOnAction(new EventHandler<ActionEvent>() { public void handle(final ActionEvent event) { acceptanceLabel.setText("Accepted"); } }); final Button declineButton = new Button("Decline"); declineButton.setOnAction(new EventHandler<ActionEvent>() { public void handle(final ActionEvent event) { acceptanceLabel.setText("Declined"); } }); final HBox panel = createHBox(6, acceptButton, declineButton, acceptanceLabel); panel.setAlignment(Pos.CENTER_LEFT); configureBorder(panel); return panel; } private static Node createProgressPanel() { final Slider slider = new Slider(); final ProgressIndicator progressIndicator = new ProgressIndicator(0); progressIndicator.progressProperty().bind(Bindings.divide(slider.valueProperty(), slider.maxProperty())); final HBox panel = createHBox(6, new Label("Progress:"), slider, progressIndicator); configureBorder(panel); return panel; } private static void configureBorder(final Region region) { region.setStyle("-fx-background-color: white;" + "-fx-border-color: black;" + "-fx-border-width: 1;" + "-fx-border-radius: 6;" + "-fx-padding: 6;"); } private static RadioButton createRadioButton(final String text, final ToggleGroup toggleGroup, final boolean selected) { final RadioButton radioButton = new RadioButton(text); radioButton.setToggleGroup(toggleGroup); radioButton.setSelected(selected); return radioButton; } private static HBox createHBox(final double spacing, final Node... children) { final HBox hbox = new HBox(spacing); hbox.getChildren().addAll(children); return hbox; } private static VBox createVBox(final double spacing, final Node... children) { final VBox vbox = new VBox(spacing); vbox.getChildren().addAll(children); return vbox; } private static final class DragContext { public double mouseAnchorX; public double mouseAnchorY; public double initialTranslateX; public double initialTranslateY; } }