Small addition; the 3520 button moved the top left of the Window to the
middle of the right screen, but the window as a whole was not centered.
--John
On 09/04/2025 13:22, John Hendrikx wrote:
>
> Hi Thiago,
>
> I ran this on Windows. My monitor setup is:
>
> Left: 3840x2160 (150%) -- top left coordinate (-2560, 0) (-2560
> because of scaling)
> Middle: 3840x2160 (150%) -- this one has a top left coordinate of (0, 0)
> Right: 1920x1200 (100%) -- this one has a top left coordinate of (2560, 0)
>
> When started, the program appeared perfectly centered on the middle
> screen.
>
> Your program showed buttons: 4480 and 3520
>
> The 4480 button moved the Window far too the right, off screen and I
> had to stop the program
>
> The 3520 button moved the Window to the Right monitor, but it was not
> centered nicely.
>
> I added a `peek(System.out::println)` on the screens stream. These
> are my screens:
>
> Rectangle2D [minX=0.0, minY=0.0, maxX=2560.0, maxY=1440.0,
> width=2560.0, height=1440.0]
>
> Rectangle2D [minX=2560.0, minY=-194.0, maxX=4480.0, maxY=1006.0,
> width=1920.0, height=1200.0]
>
> Rectangle2D [minX=-2560.0, minY=6.0, maxX=0.0, maxY=1446.0,
> width=2560.0, height=1440.0]
>
> --John
>
> On 09/04/2025 12:55, Thiago Milczarek Sayão wrote:
>> Hi,
>>
>> Could anyone with a multi-screen setup on Mac and/or Windows please
>> share the results of the two buttons on this sample app? Your
>> feedback would be greatly appreciated!
>>
>> On Ubuntu 24.04 the first button moves the Stage to the end of the
>> first screen (bit weird).
>> The second work as expected, it gets moved to the start of the center
>> of the last screen.
>>
>> Thanks!
>>
>> import javafx.application.Application;
>> import javafx.geometry.Pos;
>> import javafx.geometry.Rectangle2D;
>> import javafx.scene.control.Button;
>> import javafx.scene.layout.VBox;
>> import javafx.stage.Screen;
>> import javafx.stage.StageStyle;
>> import javafx.application.Platform;
>> import javafx.scene.Scene;
>> import javafx.scene.layout.StackPane;
>> import javafx.scene.paint.Color;
>> import javafx.stage.Stage;
>>
>> import java.util.Comparator;
>>
>> public class TestScreenBounds extends Application {
>>
>> @Override
>> public void start(Stage stage) {
>> stage.setTitle("Move Outside Bounds");
>> Rectangle2D bounds = Screen.getScreens().stream()
>> .map(Screen::getBounds)
>>
>> .sorted(Comparator.comparingDouble(Rectangle2D::getMaxX).reversed())
>> .findFirst()
>> .orElseThrow();
>>
>> Button btn = new Button("Move To " + bounds.getMaxX());
>> btn.setOnAction(event -> stage.setX(bounds.getMaxX()));
>>
>> double middleLastScreen = bounds.getMinX() + bounds.getWidth() / 2;
>>
>> Button btn2 = new Button("Move To " + middleLastScreen);
>> btn2.setOnAction(event -> stage.setX(middleLastScreen));
>>
>> VBox root = new VBox(btn, btn2);
>> root.setFillWidth(true);
>> root.setAlignment(Pos.CENTER);
>> Scene scene = new Scene(root, 300, 300);
>> stage.setScene(scene);
>> stage.show();
>> }
>>
>> public static void main(String[] args) {
>> launch(TestScreenBounds.class, args);
>> }
>> }
>>
