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window, image_view: Resize window based on image size

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Allows us to have a more appropriate size for the window
based on the content, instead of sticking with the small
default window size.
This commit is contained in:
Christopher Davis 2021-03-02 16:39:03 -08:00
parent f056c82ced
commit fef57b242d
2 changed files with 96 additions and 3 deletions
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53
src/widgets/image_view.rs
View file

@ -128,6 +128,26 @@ mod imp {
PROPERTIES.as_ref()
}
fn signals() -> &'static [glib::subclass::Signal] {
static SIGNALS: Lazy<Vec<glib::subclass::Signal>> = Lazy::new(|| {
vec![subclass::Signal::builder(
// Called when the dimensions of the image
// have been found.
"dimensions-loaded",
&[
// The width of the image
i32::static_type().into(),
// The height of the image
i32::static_type().into(),
],
glib::Type::UNIT.into(),
)
.build()]
});
SIGNALS.as_ref()
}
fn get_property(
&self,
_obj: &Self::Type,
@ -204,6 +224,21 @@ impl IvImageView {
let imp = imp::IvImageView::from_instance(&self);
imp.picture.set_file(Some(file));
if let Err(e) = self.load_dimensions_from_file(file) {
log::error!("Could not load image dimensions: {}", e);
};
}
fn load_dimensions_from_file(&self, file: &gio::File) -> anyhow::Result<()> {
let pb = file.get_path().context("No path for current file")?;
let (_, width, height) =
gdk_pixbuf::Pixbuf::get_file_info(&pb.as_path()).context("Could not get file info")?;
log::debug!("Image dimensions: {} x {}", width, height);
let _ = self.emit_by_name("dimensions-loaded", &[&width, &height]);
Ok(())
}
pub fn set_wallpaper(&self) -> anyhow::Result<()> {
@ -220,7 +255,7 @@ impl IvImageView {
let request = RequestProxy::new(&imp.connection, &request_handle)?;
request.on_response(|response: Response<Basic>| {
log::debug!("Response is OK: {}", response.is_ok());
log::debug!("Wallpaper set: {}", response.is_ok());
})?;
Ok(())
@ -281,4 +316,20 @@ impl IvImageView {
imp.popover.set_pointing_to(&rect);
imp.popover.popup();
}
pub fn connect_dimensions_loaded<F: Fn(&Self, i32, i32) + 'static>(
&self,
f: F,
) -> glib::SignalHandlerId {
self.connect_local("dimensions-loaded", true, move |values| {
let view = values[0].get::<Self>().unwrap().unwrap();
let width = values[1].get::<i32>().unwrap().unwrap();
let height = values[2].get::<i32>().unwrap().unwrap();
f(&view, width, height);
None
})
.unwrap()
}
}