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Implement min/max_dimensions for x11 windows.

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Size hints are only being set for non-fullscreen windows, if
`max_dimensions` are set they'll override the normal `dimensions`
since X11 will not automatically resize the window after setting
the size hints.

`PSize` hint is currently set along with the `min/max` hints for
good measure.
This commit is contained in:
Ivo Wetzel 2016-03-06 20:47:10 +01:00
parent e843206c13
commit 7473d99c2f
1 changed files with 28 additions and 6 deletions
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34
src/api/x11/window.rs
View file

@ -310,11 +310,7 @@ impl Window {
pf_reqs: &PixelFormatRequirements, opengl: &GlAttributes<&Window>)
-> Result<Window, CreationError>
{
let dimensions = window_attrs.dimensions.unwrap_or((800, 600));
// not implemented
assert!(window_attrs.min_dimensions.is_none());
assert!(window_attrs.max_dimensions.is_none());
let dimensions = window_attrs.max_dimensions.unwrap_or(window_attrs.dimensions.unwrap_or((800, 600)));
let screen_id = match window_attrs.monitor {
Some(PlatformMonitorId::X(MonitorId(_, monitor))) => monitor as i32,
@ -339,7 +335,7 @@ impl Window {
let m = (0 .. mode_num).map(|i| {
let m: ffi::XF86VidModeModeInfo = ptr::read(*modes.offset(i as isize) as *const _); m
}).find(|m| m.hdisplay >= dimensions.0 as u16 && m.vdisplay >= dimensions.1 as u16);
match m {
Some(m) => Some(m),
None => return Err(OsError(format!("Could not find a suitable graphics mode")))
@ -589,6 +585,32 @@ impl Window {
(display.xf86vmode.XF86VidModeSetViewPort)(display.display, screen_id, 0, 0);
display.check_errors().expect("Failed to call XF86VidModeSetViewPort");
}
} else {
// set size hints
let mut size_hints: ffi::XSizeHints = unsafe { mem::zeroed() };
size_hints.flags = ffi::PSize;
size_hints.width = dimensions.0 as i32;
size_hints.height = dimensions.1 as i32;
if let Some(dimensions) = window_attrs.min_dimensions {
size_hints.flags |= ffi::PMinSize;
size_hints.min_width = dimensions.0 as i32;
size_hints.min_height = dimensions.1 as i32;
}
if let Some(dimensions) = window_attrs.max_dimensions {
size_hints.flags |= ffi::PMaxSize;
size_hints.max_width = dimensions.0 as i32;
size_hints.max_height = dimensions.1 as i32;
}
unsafe {
(display.xlib.XSetNormalHints)(display.display, window, &mut size_hints);
display.check_errors().expect("Failed to call XSetNormalHints");
}
}
// finish creating the OpenGL context