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fix(terminal): pass physical pixels to ghostty_surface_set_size on HiDPI #100

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fix(terminal): pass physical pixels to ghostty_surface_set_size on HiDPI #100

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12 changes: 8 additions & 4 deletions rust/limux-host-linux/src/terminal.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -414,12 +414,16 @@ fn request_terminal_focus(gl_area: &gtk::GLArea, had_focus: &Cell<bool>) {

fn refresh_surface_display(surface: ghostty_surface_t, gl_area: &gtk::GLArea) {
let alloc = gl_area.allocation();
let w = alloc.width() as u32;
let h = alloc.height() as u32;
let scale = gl_area.scale_factor();
// ghostty_surface_set_size expects PHYSICAL pixels (the GL framebuffer size).
// gl_area.allocation() returns LOGICAL CSS pixels; multiply by the integer
// scale factor to get the physical pixel dimensions that match the GL viewport.
let w = (alloc.width() * scale) as u32;
let h = (alloc.height() * scale) as u32;
if w > 0 && h > 0 {
let scale = gl_area.scale_factor() as f64;
let scale_f64 = scale as f64;
unsafe {
ghostty_surface_set_content_scale(surface, scale, scale);
ghostty_surface_set_content_scale(surface, scale_f64, scale_f64);
ghostty_surface_set_size(surface, w, h);
}
}
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