<div dir="ltr">Thanks John!<div><br></div><div>I did not calculate the center, I just wanted to know the behaviour of setX() outside bounds and within</div><div>bounds of the last screen.</div><div><br></div><div>The GNOME window manager on Linux restricts programmatic movement of windows to prevent them </div><div>from being moved outside screen boundaries. However, it allows users to drag windows beyond these limits.<br>I find it odd that the maximum movement is restricted to the bounds of the first screen, while it would be more</div><div>intuitive for it to be based on the last screen.</div><div><br></div><div>The Windows behaviour also seems odd.</div><div><br></div><div>-- Thiago</div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">Em qua., 9 de abr. de 2025 às 08:28, John Hendrikx <<a href="mailto:john.hendrikx@gmail.com">john.hendrikx@gmail.com</a>> escreveu:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><u></u>
<div>
<p>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.</p>
<p>--John<br>
</p>
<div>On 09/04/2025 13:22, John Hendrikx
wrote:<br>
</div>
<blockquote type="cite">
<p>Hi Thiago,</p>
<p>I ran this on Windows. My monitor setup is:</p>
<p>Left: 3840x2160 (150%) -- top left coordinate (-2560, 0) (-2560
because of scaling)<br>
Middle: 3840x2160 (150%) -- this one has a top left coordinate
of (0, 0)<br>
Right: 1920x1200 (100%) -- this one has a top left coordinate of
(2560, 0)<br>
</p>
<p>When started, the program appeared perfectly centered on the
middle screen.</p>
<p>Your program showed buttons: 4480 and 3520</p>
<p>The 4480 button moved the Window far too the right, off screen
and I had to stop the program</p>
<p>The 3520 button moved the Window to the Right monitor, but it
was not centered nicely.</p>
<p>I added a `peek(System.out::println)` on the screens stream.
These are my screens:</p>
<div style="background-color:rgb(255,255,255);padding:0px 0px 0px 2px">
<div style="color:rgb(0,0,0);background-color:rgb(255,255,255);font-family:Consolas;font-size:11pt;white-space:pre-wrap"><p style="margin:0px"><span style="color:rgb(0,0,255)">Rectangle2D [minX=0.0, minY=0.0, maxX=2560.0, maxY=1440.0, width=2560.0, height=1440.0]</span></p><p style="margin:0px"><span style="color:rgb(0,0,255)">Rectangle2D [minX=2560.0, minY=-194.0, maxX=4480.0, maxY=1006.0, width=1920.0, height=1200.0]</span></p><p style="margin:0px"><span style="color:rgb(0,0,255)">Rectangle2D [minX=-2560.0, minY=6.0, maxX=0.0, maxY=1446.0, width=2560.0, height=1440.0]</span></p></div>
</div>
<p>--John<br>
</p>
<div>On 09/04/2025 12:55, Thiago Milczarek
Sayão wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Hi,
<div><br>
</div>
<div>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!</div>
<div>
<div>
<div>
<div>
<div>
<div>
<div><span></span></div>
</div>
</div>
</div>
</div>
</div>
<div><br>
</div>
<div>On Ubuntu 24.04 the first button moves the Stage to the
end of the first screen (bit weird). </div>
<div>The second work as expected, it gets moved to the start
of the center of the last screen.</div>
<div><br>
</div>
<div>Thanks!</div>
<div><br>
</div>
<div>
<div style="background-color:rgb(30,31,34);color:rgb(188,190,196)">
<pre style="font-family:"JetBrains Mono",monospace;font-size:9.8pt"><span style="color:rgb(207,142,109)">import </span>javafx.application.Application;
<span style="color:rgb(207,142,109)">import </span>javafx.geometry.Pos;
<span style="color:rgb(207,142,109)">import </span>javafx.geometry.Rectangle2D;
<span style="color:rgb(207,142,109)">import </span>javafx.scene.control.Button;
<span style="color:rgb(207,142,109)">import </span>javafx.scene.layout.VBox;
<span style="color:rgb(207,142,109)">import </span>javafx.stage.Screen;
<span style="color:rgb(207,142,109)">import </span>javafx.stage.StageStyle;
<span style="color:rgb(207,142,109)">import </span>javafx.application.Platform;
<span style="color:rgb(207,142,109)">import </span>javafx.scene.Scene;
<span style="color:rgb(207,142,109)">import </span>javafx.scene.layout.StackPane;
<span style="color:rgb(207,142,109)">import </span>javafx.scene.paint.Color;
<span style="color:rgb(207,142,109)">import </span>javafx.stage.Stage;
<span style="color:rgb(207,142,109)">import </span>java.util.Comparator;
<span style="color:rgb(207,142,109)">public class </span>TestScreenBounds <span style="color:rgb(207,142,109)">extends </span>Application {
@Override
<span style="color:rgb(207,142,109)">public void </span>start(Stage stage) {
stage.setTitle(<span style="color:rgb(106,171,115)">"Move Outside Bounds"</span>);
Rectangle2D bounds = Screen.getScreens().stream()
.map(Screen::getBounds)
.sorted(Comparator.comparingDouble(Rectangle2D::getMaxX).reversed())
.findFirst()
.orElseThrow();
Button btn = <span style="color:rgb(207,142,109)">new </span>Button(<span style="color:rgb(106,171,115)">"Move To " </span>+ bounds.getMaxX());
btn.setOnAction(event -> stage.setX(bounds.getMaxX()));
<span style="color:rgb(207,142,109)">double </span>middleLastScreen = bounds.getMinX() + bounds.getWidth() / <span style="color:rgb(42,172,184)">2</span>;
Button btn2 = <span style="color:rgb(207,142,109)">new </span>Button(<span style="color:rgb(106,171,115)">"Move To " </span>+ middleLastScreen);
btn2.setOnAction(event -> stage.setX(middleLastScreen));
VBox root = <span style="color:rgb(207,142,109)">new </span>VBox(btn, btn2);
root.setFillWidth(<span style="color:rgb(207,142,109)">true</span>);
root.setAlignment(Pos.CENTER);
Scene scene = <span style="color:rgb(207,142,109)">new </span>Scene(root, <span style="color:rgb(42,172,184)">300</span>, <span style="color:rgb(42,172,184)">300</span>);
stage.setScene(scene);
stage.show();
}
<span style="color:rgb(207,142,109)">public static void </span>main(String[] args) {
launch(TestScreenBounds.<span style="color:rgb(207,142,109)">class</span>, args);
}
}
</pre>
</div>
</div>
</div>
</div>
</blockquote>
</blockquote>
</div>
</blockquote></div>