gdk4/auto/vulkan_context.rs
1// This file was generated by gir (https://github.com/gtk-rs/gir)
2// from gir-files (https://github.com/gtk-rs/gir-files)
3// DO NOT EDIT
4
5use crate::{ffi, DrawContext};
6use glib::{
7 object::ObjectType as _,
8 prelude::*,
9 signal::{connect_raw, SignalHandlerId},
10 translate::*,
11};
12use std::boxed::Box as Box_;
13
14glib::wrapper! {
15 /// GTK does not expose any Vulkan internals. This
16 /// struct is a leftover that was accidentally exposed.
17 /// [`VulkanContext`][crate::VulkanContext] is an object representing the platform-specific
18 /// Vulkan draw context.
19 ///
20 /// [`VulkanContext`][crate::VulkanContext]s are created for a surface using
21 /// [`SurfaceExt::create_vulkan_context()`][crate::prelude::SurfaceExt::create_vulkan_context()], and the context will match
22 /// the characteristics of the surface.
23 ///
24 /// Support for [`VulkanContext`][crate::VulkanContext] is platform-specific and context creation
25 /// can fail, returning [`None`] context.
26 ///
27 /// This is an Abstract Base Class, you cannot instantiate it.
28 ///
29 /// ## Signals
30 ///
31 ///
32 /// #### `images-updated`
33 /// Emitted when the images managed by this context have changed.
34 ///
35 /// Usually this means that the swapchain had to be recreated,
36 /// for example in response to a change of the surface size.
37 ///
38 ///
39 ///
40 /// # Implements
41 ///
42 /// [`DrawContextExt`][trait@crate::prelude::DrawContextExt], [`trait@gio::prelude::InitableExt`], [`DrawContextExtManual`][trait@crate::prelude::DrawContextExtManual]
43 #[doc(alias = "GdkVulkanContext")]
44 pub struct VulkanContext(Object<ffi::GdkVulkanContext>) @extends DrawContext, @implements gio::Initable;
45
46 match fn {
47 type_ => || ffi::gdk_vulkan_context_get_type(),
48 }
49}
50
51impl VulkanContext {
52 /// Emitted when the images managed by this context have changed.
53 ///
54 /// Usually this means that the swapchain had to be recreated,
55 /// for example in response to a change of the surface size.
56 #[doc(alias = "images-updated")]
57 pub fn connect_images_updated<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
58 unsafe extern "C" fn images_updated_trampoline<F: Fn(&VulkanContext) + 'static>(
59 this: *mut ffi::GdkVulkanContext,
60 f: glib::ffi::gpointer,
61 ) {
62 let f: &F = &*(f as *const F);
63 f(&from_glib_borrow(this))
64 }
65 unsafe {
66 let f: Box_<F> = Box_::new(f);
67 connect_raw(
68 self.as_ptr() as *mut _,
69 b"images-updated\0".as_ptr() as *const _,
70 Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
71 images_updated_trampoline::<F> as *const (),
72 )),
73 Box_::into_raw(f),
74 )
75 }
76 }
77}