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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)
// DO NOT EDIT

use crate::OutputStream;
use crate::PollableOutputStream;
use crate::Seekable;
use glib::object::Cast;
use glib::object::IsA;
use glib::signal::connect_raw;
use glib::signal::SignalHandlerId;
use glib::translate::*;
use std::boxed::Box as Box_;
use std::fmt;
use std::mem::transmute;

glib::wrapper! {
    #[doc(alias = "GMemoryOutputStream")]
    pub struct MemoryOutputStream(Object<ffi::GMemoryOutputStream, ffi::GMemoryOutputStreamClass>) @extends OutputStream, @implements PollableOutputStream, Seekable;

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

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

    #[doc(alias = "g_memory_output_stream_new_resizable")]
    pub fn new_resizable() -> MemoryOutputStream {
        unsafe {
            OutputStream::from_glib_full(ffi::g_memory_output_stream_new_resizable()).unsafe_cast()
        }
    }
}

pub trait MemoryOutputStreamExt: 'static {
    #[doc(alias = "g_memory_output_stream_get_data_size")]
    #[doc(alias = "get_data_size")]
    fn data_size(&self) -> usize;

    #[doc(alias = "g_memory_output_stream_steal_as_bytes")]
    fn steal_as_bytes(&self) -> glib::Bytes;

    #[doc(alias = "data-size")]
    fn connect_data_size_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;
}

impl<O: IsA<MemoryOutputStream>> MemoryOutputStreamExt for O {
    fn data_size(&self) -> usize {
        unsafe { ffi::g_memory_output_stream_get_data_size(self.as_ref().to_glib_none().0) }
    }

    fn steal_as_bytes(&self) -> glib::Bytes {
        unsafe {
            from_glib_full(ffi::g_memory_output_stream_steal_as_bytes(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn connect_data_size_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_data_size_trampoline<
            P: IsA<MemoryOutputStream>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GMemoryOutputStream,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(MemoryOutputStream::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::data-size\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_data_size_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}

impl fmt::Display for MemoryOutputStream {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        f.write_str("MemoryOutputStream")
    }
}