On Tue, 21 Oct 2025 23:54:55 GMT, Michael Strauß <[email protected]> wrote:
> Adds the `Dialog.headerBar` property, which allows developers to specify a > custom `HeaderBar` when the dialog uses the `EXTENDED` stage style. The > property is ignored for all other stage styles. More strange behaviour, this time using Labels and setting a min height, leads to different behaviours... <img width="619" height="633" alt="image" src="https://github.com/user-attachments/assets/9e767493-3f80-4ca9-b29c-cba9199b6dac"; /> public class DialogBugDemoTwo extends Application { @Override public void start(Stage stage) { Button infoBtn = new Button("Show Two Alerts"); infoBtn.setOnAction(e -> { showInfo(true, false, "with header, NO min height"); showInfo(false, true, "NO header, with min height"); showInfo(true, true, "with header, with min height"); showInfo(false, false, "NO header, NO min height"); }); stage.setScene(new Scene(new VBox(10, infoBtn), 400, 300)); stage.show(); } private void showInfo(boolean withHeaderBar, boolean setMinHeight, String desc) { Alert alert = new Alert(AlertType.INFORMATION); alert.setHeaderText(null); alert.initModality(Modality.NONE); // Set preferred width causing the issue to manifest, no issue without it alert.getDialogPane().setPrefWidth(600); // Comment out and bug goes away alert.getDialogPane().setContent(createVbox(desc)); if (setMinHeight) { alert.getDialogPane().setMinHeight(Region.USE_PREF_SIZE); } // Display issues only occur when HeaderBar is set if (withHeaderBar) { alert.setHeaderBar(new HeaderBar()); alert.initStyle(StageStyle.EXTENDED); } alert.show(); } private VBox createVbox(String desc) { final Label lbl1 = new Label(desc + ".... 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0; end of first Label."); lbl1.setWrapText(true); final Label lbl2 = new Label("1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0; end of second Label."); lbl2.setWrapText(true); return new VBox(lbl1, new VBox(lbl2)); } public static void main(String[] args) { launch(args); } } ------------- PR Comment: https://git.openjdk.org/jfx/pull/1943#issuecomment-3438861997
