init JavaFX Dialog Positioning - Java JavaFX

Java examples for JavaFX:Dialog

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Description

init JavaFX Dialog Positioning

Demo Code


import javafx.application.Platform;
import javafx.scene.control.Dialog;
import javafx.stage.Window;

public class Main{
    private static Window applicationWindow = null;
    public static void initDialogPositioning(Dialog dialog) {

   final double windowX = applicationWindow == null ? 0.0 : applicationWindow.getX();
   final double windowY = applicationWindow == null ? 0.0 : applicationWindow.getY();

   // initially position the dialog on the window
   dialog.setX(windowX);/*from   ww w  .  ja  va 2 s.c o m*/
   dialog.setY(windowY);

   // after the dialog is visible we can move it to the middle of the window.
   dialog.setOnShown(e -> Platform.runLater(() -> {

      final double windowWidth = applicationWindow == null ? 1000 : applicationWindow.getWidth();
      final double windowHeight = applicationWindow == null ? 500 : applicationWindow.getHeight();

      final double dialogWidth = dialog.getWidth();
      final double dialogHeight = dialog.getHeight();

      final double offsetX = (windowWidth - dialogWidth) / 2;
      final double offsetY = (windowHeight - dialogHeight) / 2;

      final double dialogX = windowX + offsetX;
      final double dialogY = windowY + offsetY;

      dialog.setX(dialogX);
      dialog.setY(dialogY);
   }));
}
}

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