gstreamer-video 0.25.2

Rust bindings for GStreamer Video library
Documentation 
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// This file was generated by gir (https://github.com/gtk-rs/gir)
// from gir-files (https://github.com/gtk-rs/gir-files)
// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
// DO NOT EDIT

use crate::ffi;
use glib::{
    object::ObjectType as _,
    prelude::*,
    signal::{SignalHandlerId, connect_raw},
    translate::*,
};
use std::boxed::Box as Box_;

glib::wrapper! {
    #[doc(alias = "GstColorBalanceChannel")]
    pub struct ColorBalanceChannel(Object<ffi::GstColorBalanceChannel, ffi::GstColorBalanceChannelClass>);

    match fn {
        type_ => || ffi::gst_color_balance_channel_get_type(),
    }
}

impl ColorBalanceChannel {
    pub const NONE: Option<&'static ColorBalanceChannel> = None;
}

unsafe impl Send for ColorBalanceChannel {}
unsafe impl Sync for ColorBalanceChannel {}

pub trait ColorBalanceChannelExt: IsA<ColorBalanceChannel> + 'static {
    #[doc(alias = "value-changed")]
    fn connect_value_changed<F: Fn(&Self, i32) + Send + Sync + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn value_changed_trampoline<
            P: IsA<ColorBalanceChannel>,
            F: Fn(&P, i32) + Send + Sync + 'static,
        >(
            this: *mut ffi::GstColorBalanceChannel,
            value: std::ffi::c_int,
            f: glib::ffi::gpointer,
        ) {
            unsafe {
                let f: &F = &*(f as *const F);
                f(
                    ColorBalanceChannel::from_glib_borrow(this).unsafe_cast_ref(),
                    value,
                )
            }
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"value-changed".as_ptr(),
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    value_changed_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}

impl<O: IsA<ColorBalanceChannel>> ColorBalanceChannelExt for O {}