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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::GLContext;
use glib::{
    prelude::*,
    signal::{connect_raw, SignalHandlerId},
    translate::*,
};
use std::{boxed::Box as Box_, mem::transmute};

glib::wrapper! {
    /// [`GLBaseFilter`][crate::GLBaseFilter] handles the nitty gritty details of retrieving an OpenGL
    /// context. It also provided some wrappers around [`gst_base::BaseTransform`][crate::gst_base::BaseTransform]'s
    /// ``start()``, ``stop()`` and ``set_caps()`` virtual methods that ensure an OpenGL
    /// context is available and current in the calling thread.
    ///
    /// ## Properties
    ///
    ///
    /// #### `context`
    ///  Readable
    /// <details><summary><h4>BaseTransform</h4></summary>
    ///
    ///
    /// #### `qos`
    ///  Readable | Writeable
    /// </details>
    /// <details><summary><h4>Object</h4></summary>
    ///
    ///
    /// #### `name`
    ///  Readable | Writeable | Construct
    ///
    ///
    /// #### `parent`
    ///  The parent of the object. Please note, that when changing the 'parent'
    /// property, we don't emit [`notify`][struct@crate::glib::Object#notify] and [`deep-notify`][struct@crate::gst::Object#deep-notify]
    /// signals due to locking issues. In some cases one can use
    /// `GstBin::element-added` or `GstBin::element-removed` signals on the parent to
    /// achieve a similar effect.
    ///
    /// Readable | Writeable
    /// </details>
    ///
    /// # Implements
    ///
    /// [`GLBaseFilterExt`][trait@crate::prelude::GLBaseFilterExt], [`trait@gst_base::prelude::BaseTransformExt`], [`trait@gst::prelude::ElementExt`], [`trait@gst::prelude::ObjectExt`], [`trait@glib::ObjectExt`]
    #[doc(alias = "GstGLBaseFilter")]
    pub struct GLBaseFilter(Object<ffi::GstGLBaseFilter, ffi::GstGLBaseFilterClass>) @extends gst_base::BaseTransform, gst::Element, gst::Object;

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

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

unsafe impl Send for GLBaseFilter {}
unsafe impl Sync for GLBaseFilter {}

/// Trait containing all [`struct@GLBaseFilter`] methods.
///
/// # Implementors
///
/// [`GLBaseFilter`][struct@crate::GLBaseFilter], [`GLFilter`][struct@crate::GLFilter]
pub trait GLBaseFilterExt: 'static {
    ///
    /// # Returns
    ///
    /// Whether an OpenGL context could be retrieved or created successfully
    #[cfg(any(feature = "v1_16", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v1_16")))]
    #[doc(alias = "gst_gl_base_filter_find_gl_context")]
    fn find_gl_context(&self) -> bool;

    ///
    /// # Returns
    ///
    /// the [`GLContext`][crate::GLContext] found by `self`
    #[cfg(any(feature = "v1_18", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v1_18")))]
    #[doc(alias = "gst_gl_base_filter_get_gl_context")]
    #[doc(alias = "get_gl_context")]
    fn gl_context(&self) -> Option<GLContext>;

    fn context(&self) -> Option<GLContext>;

    #[doc(alias = "context")]
    fn connect_context_notify<F: Fn(&Self) + Send + Sync + 'static>(&self, f: F)
        -> SignalHandlerId;
}

impl<O: IsA<GLBaseFilter>> GLBaseFilterExt for O {
    #[cfg(any(feature = "v1_16", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v1_16")))]
    fn find_gl_context(&self) -> bool {
        unsafe {
            from_glib(ffi::gst_gl_base_filter_find_gl_context(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    #[cfg(any(feature = "v1_18", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v1_18")))]
    fn gl_context(&self) -> Option<GLContext> {
        unsafe {
            from_glib_full(ffi::gst_gl_base_filter_get_gl_context(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn context(&self) -> Option<GLContext> {
        glib::ObjectExt::property(self.as_ref(), "context")
    }

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