public class AlertPromptDialog extends Stage {
private static final int WIDTH_DEFAULT = 400;
private static Label label;
private static AlertPromptDialog popup;
private static int result;
private static Image img;
public static final int NO = 0;
public static final int YES = 1;
private AlertPromptDialog() {
setResizable(false);
initModality(Modality.APPLICATION_MODAL);
initStyle(StageStyle.TRANSPARENT);
img = new Image(AlertPromptDialog.class.getResourceAsStream("/images/MYICON.png"));
addEventHandler(KeyEvent.KEY_PRESSED, new EventHandler() {
@Override
public void handle(KeyEvent ke) {
if (ke.getCode() == KeyCode.ESCAPE) {
AlertPromptDialog.this.close();
}
}
});
label = new Label();
label.setWrapText(true);
label.setGraphicTextGap(20);
Button ybutton = new Button("Yes");
ybutton.setOnAction(new EventHandler(){
@Override
public void handle(ActionEvent arg0) {
result = YES;
AlertPromptDialog.this.close();
}
});
Button nbutton = new Button("No");
nbutton.setOnAction(new EventHandler(){
@Override
public void handle(ActionEvent arg0) {
result = NO;
AlertPromptDialog.this.close();
}
});
BorderPane borderPane = new BorderPane();
BorderPane dropShadowPane = new BorderPane();
dropShadowPane.getStyleClass().add("content");
dropShadowPane.setTop(label);
HBox hbox = new HBox();
hbox.setSpacing(15);
hbox.setAlignment(Pos.CENTER);
hbox.getChildren().add(ybutton);
hbox.setAlignment(Pos.CENTER);
hbox.getChildren().add(nbutton);
dropShadowPane.setBottom(hbox);
borderPane.setCenter(dropShadowPane);
Scene scene = new Scene(borderPane);
scene.getStylesheets().add(getResource("alert.css").toExternalForm());
scene.setFill(Color.TRANSPARENT);
setScene(scene);
}
public static int show(Stage owner, String msg) {
if (popup == null) {
popup = new AlertPromptDialog();
}
label.setText(msg);
label.setGraphic(new ImageView(img));
// calculate width of string
final Text text = new Text(msg);
text.snapshot(null, null);
// + 40 because there is padding 10 left and right and there are 2 containers now
// + 20 because there is text gap between icon and messge
int width = (int) text.getLayoutBounds().getWidth() + 60;
if (width + img.getWidth() < WIDTH_DEFAULT)
width = WIDTH_DEFAULT;
int height = 120;
popup.setWidth(width);
popup.setHeight(height);
// make sure this stage is centered on top of its owner
popup.setX(owner.getX() + (owner.getWidth() / 2 - popup.getWidth() / 2));
popup.setY(owner.getY() + (owner.getHeight() / 2 - popup.getHeight() / 2));
popup.showAndWait();
return result;
}
}
