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PanelWindow: Fix gap between maximized window and wingpanel #745

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Merged
leolost2605 merged 1 commit into from
Oct 29, 2026
Merged

PanelWindow: Fix gap between maximized window and wingpanel #745

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8 changes: 7 additions & 1 deletion src/PanelWindow.vala
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Original file line number Diff line number Diff line change
Expand Up @@ -78,7 +78,13 @@ public class Wingpanel.PanelWindow : Gtk.Window {
}

private static void on_compute_size (Gdk.ToplevelSize top_level_size) {
top_level_size.set_shadow_width (0, 0, 0, BottomMargin.SIZE);
/* +1 to make sure that even with fractional scaling there are
no gaps between wingpanel and a maximized window. Currently with
certain scale factors and the current CSS we might end up with a gap
because we cover half a pixel. We can solve this properly in Gtk 4.24
with Gtk.Snapshot.set_snap (see https://blogs.gnome.org/gtk/2026/05/28/snapping/),
but for now lets work around it */
top_level_size.set_shadow_width (0, 0, 0, BottomMargin.SIZE + 1);
}

private void on_layout (Gdk.Surface surface, int width, int height) {
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