gdk4/auto/
vulkan_context.rs

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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    /// Represents the platform-specific Vulkan draw context.
18    ///
19    /// [`VulkanContext`][crate::VulkanContext]s are created for a surface using
20    /// [`SurfaceExt::create_vulkan_context()`][crate::prelude::SurfaceExt::create_vulkan_context()], and the context will match
21    /// the characteristics of the surface.
22    ///
23    /// Support for [`VulkanContext`][crate::VulkanContext] is platform-specific and context creation
24    /// can fail, returning [`None`] context.
25    ///
26    /// This is an Abstract Base Class, you cannot instantiate it.
27    ///
28    /// ## Signals
29    ///
30    ///
31    /// #### `images-updated`
32    ///  Emitted when the images managed by this context have changed.
33    ///
34    /// Usually this means that the swapchain had to be recreated,
35    /// for example in response to a change of the surface size.
36    ///
37    ///
38    ///
39    /// # Implements
40    ///
41    /// [`DrawContextExt`][trait@crate::prelude::DrawContextExt], [`trait@gio::prelude::InitableExt`], [`DrawContextExtManual`][trait@crate::prelude::DrawContextExtManual]
42    #[doc(alias = "GdkVulkanContext")]
43    pub struct VulkanContext(Object<ffi::GdkVulkanContext>) @extends DrawContext, @implements gio::Initable;
44
45    match fn {
46        type_ => || ffi::gdk_vulkan_context_get_type(),
47    }
48}
49
50impl VulkanContext {
51    /// Emitted when the images managed by this context have changed.
52    ///
53    /// Usually this means that the swapchain had to be recreated,
54    /// for example in response to a change of the surface size.
55    #[doc(alias = "images-updated")]
56    pub fn connect_images_updated<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
57        unsafe extern "C" fn images_updated_trampoline<F: Fn(&VulkanContext) + 'static>(
58            this: *mut ffi::GdkVulkanContext,
59            f: glib::ffi::gpointer,
60        ) {
61            let f: &F = &*(f as *const F);
62            f(&from_glib_borrow(this))
63        }
64        unsafe {
65            let f: Box_<F> = Box_::new(f);
66            connect_raw(
67                self.as_ptr() as *mut _,
68                c"images-updated".as_ptr() as *const _,
69                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
70                    images_updated_trampoline::<F> as *const (),
71                )),
72                Box_::into_raw(f),
73            )
74        }
75    }
76}
gdk4/auto/vulkan_context.rs

gdk4/auto/
vulkan_context.rs
