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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::DrawContext;
use glib::{
prelude::*,
signal::{connect_raw, SignalHandlerId},
translate::*,
};
use std::{boxed::Box as Box_, fmt, mem::transmute};
glib::wrapper! {
/// [`VulkanContext`][crate::VulkanContext] is an object representing the platform-specific
/// Vulkan draw context.
///
/// [`VulkanContext`][crate::VulkanContext]s are created for a surface using
/// [`SurfaceExt::create_vulkan_context()`][crate::prelude::SurfaceExt::create_vulkan_context()], and the context will match
/// the characteristics of the surface.
///
/// Support for [`VulkanContext`][crate::VulkanContext] is platform-specific and context creation
/// can fail, returning [`None`] context.
///
/// This is an Abstract Base Class, you cannot instantiate it.
///
/// ## Signals
///
///
/// #### `images-updated`
/// Emitted when the images managed by this context have changed.
///
/// Usually this means that the swapchain had to be recreated,
/// for example in response to a change of the surface size.
///
///
///
/// # Implements
///
/// [`DrawContextExt`][trait@crate::prelude::DrawContextExt], [`trait@gio::prelude::InitableExt`], [`DrawContextExtManual`][trait@crate::prelude::DrawContextExtManual]
#[doc(alias = "GdkVulkanContext")]
pub struct VulkanContext(Object<ffi::GdkVulkanContext>) @extends DrawContext, @implements gio::Initable;
match fn {
type_ => || ffi::gdk_vulkan_context_get_type(),
}
}
impl VulkanContext {
/// Emitted when the images managed by this context have changed.
///
/// Usually this means that the swapchain had to be recreated,
/// for example in response to a change of the surface size.
#[doc(alias = "images-updated")]
pub fn connect_images_updated<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
unsafe extern "C" fn images_updated_trampoline<F: Fn(&VulkanContext) + 'static>(
this: *mut ffi::GdkVulkanContext,
f: glib::ffi::gpointer,
) {
let f: &F = &*(f as *const F);
f(&from_glib_borrow(this))
}
unsafe {
let f: Box_<F> = Box_::new(f);
connect_raw(
self.as_ptr() as *mut _,
b"images-updated\0".as_ptr() as *const _,
Some(transmute::<_, unsafe extern "C" fn()>(
images_updated_trampoline::<F> as *const (),
)),
Box_::into_raw(f),
)
}
}
}
impl fmt::Display for VulkanContext {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.write_str("VulkanContext")
}
}