Creates a JavaFX Alert dialog of given alert type. - Java JavaFX

Java examples for JavaFX:Dialog

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Description

Creates a JavaFX Alert dialog of given alert type.

Demo Code


import java.util.Collection;
import javafx.scene.control.Alert;
import javafx.scene.control.Alert.AlertType;
import javafx.scene.control.Dialog;
import javafx.scene.image.Image;
import javafx.stage.Stage;
import javafx.stage.Window;

public class Main{
    /**/* w w  w.j  a v  a 2 s .  co  m*/
     * Creates an Alert dialog of given alert type.
     * In addition, the dialog is decorated and configured (icons, ...).
     *
     * @param type of the alert
     * @return alert dialog
     */
    public static Alert createAlert(AlertType type) {
        Alert dlg = new Alert(type);
        decorateDialogWithIcon(dlg);

        if (OsUtils.isLinux()) {
            /*
             * FIXME: Due to a bug in JavaFX and Java for linux (glass), the dialogs are not
             * represented correctly. The size does not increase with the text length and is
             * cut off if the text is too long (no wrapping).
             * see the following links:
             * - https://stackoverflow.com/questions/28937392/javafx-alerts-and-their-size
             * - https://javafx-jira.kenai.com/browse/RT-40230
             * Temporary solution: we make dialogs resizable and set a preferred size on Linux.
             */
            dlg.setResizable(true);
            dlg.getDialogPane().setPrefSize(420, 280);
        }

        return dlg;
    }
    /**
     * Decorates a dialog with window icons.
     * Note: this may not be required anymore with newer Java versions.
     *
     * @param dlg the dialog to decorate
     */
    public static void decorateDialogWithIcon(Dialog<?> dlg) {
        Window window = dlg.getDialogPane().getScene().getWindow();
        if (window instanceof Stage) {
            Stage stage = (Stage) dlg.getDialogPane().getScene()
                    .getWindow();
            Collection<Image> icons = IconUtils.createWindowIcons();
            stage.getIcons().addAll(icons);
        }
    }
}

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