Java Code Examples for javafx.scene.control.Dialog#initOwner()

public static void closeDialog(Stage primaryStage) {
    Dialog<ButtonType> dialog = new Dialog<>();

    dialog.setTitle("关闭");

    dialog.setContentText("确认关闭吗？");

    dialog.initOwner(primaryStage);

    dialog.getDialogPane().getButtonTypes().add(ButtonType.APPLY);
    dialog.getDialogPane().getButtonTypes().add(ButtonType.CLOSE);

    dialog.getDialogPane().setPrefSize(350, 100);

    Optional<ButtonType> s = dialog.showAndWait();
    s.ifPresent(s1 -> {
        if (s1.equals(ButtonType.APPLY)) {
            primaryStage.close();
        } else if (s1.equals(ButtonType.CLOSE)) {
            dialog.close();
        }
    });
}
 

/**
 * Initialized a dialog with the given owner window, and String header and content
 * @param dialog dialog box to initialize
 * @param window owning window or null if there is none
 * @param header dialog header
 * @param content dialog content
 */
public static void initializeDialog(Dialog dialog, Window window, String header, String content){
    if (window != null)
        dialog.initOwner(window);
    dialog.setTitle("CPU Sim");
    dialog.setHeaderText(header);
    dialog.setContentText(content);

    // Allow dialogs to resize for Linux
    // https://bugs.openjdk.java.net/browse/JDK-8087981
    dialog.getDialogPane().setMinHeight(Region.USE_PREF_SIZE);

}
 

/** Position dialog relative to another widget
 *
 *  <p>By default, dialogs seem to pop up in the center of the first monitor.
 *  .. even if the "current" window is on a different monitor.
 *
 *  <p>This helper positions the dialog relative to the center
 *  of a node.
 *
 *  @param dialog Dialog to position
 *  @param node Node relative to which dialog should be positioned
 *  @param x_offset Offset relative to center of the node
 *  @param y_offset Offset relative to center of the node
 */
public static void positionDialog(final Dialog<?> dialog, final Node node, final int x_offset, final int y_offset)
{
    dialog.initOwner(node.getScene().getWindow());
    // Must runLater due to dialog Width/Height are initialized after dialog shows up
    Platform.runLater(new Runnable() {
        @Override
        public void run() {
            final Bounds pos = node.localToScreen(node.getBoundsInLocal());
            if (pos == null)
            {
                logger.log(Level.WARNING, "Cannot determine dialog position", new NullPointerException());
                return;
            }
            final double nodeX = pos.getMinX();
            final double nodeY = pos.getMinY();

            double newX = nodeX + pos.getWidth()/2 + x_offset;
            double newY = nodeY + pos.getHeight()/2 + y_offset;

            final double dw = dialog.getWidth();
            final double dh = dialog.getHeight();

            List<Screen> scr = Screen.getScreensForRectangle(nodeX, nodeY, pos.getWidth(), pos.getHeight());
            if (scr == null || scr.size() == 0)
            {
                logger.log(Level.WARNING, "Cannot determine dialog position (node out of screen)");
                return;
            }
            // Take the first available screen
            Rectangle2D sb = scr.get(0).getVisualBounds();

            newX = newX < sb.getMinX() ? sb.getMinX() : newX;
            newX = newX + dw > sb.getMaxX() ? sb.getMaxX() - dw : newX;

            newY = newY < sb.getMinY() ? sb.getMinY() : newY;
            newY = newY + dh > sb.getMaxY() ? sb.getMaxY() - dh : newY;

            dialog.setX(newX);
            dialog.setY(newY);

            // Force to front
            forceToFront(dialog);
        }
    });
}