Add GTK handles

src/gtk.rs

@@ -0,0 +1,100 @@
+//! Handles to GTK windows and displays.
+
+use core::ffi::c_void;
+use core::ptr;
+
+/// Raw display handle for the GTK Tool Kit version 3.
+///
+/// ## Construction
+///
+/// ```
+/// # use raw_window_handle::Gtk3DisplayHandle;
+/// let display_handle = Gtk3DisplayHandle::empty();
+/// /* set fields */
+/// ```
+#[non_exhaustive]
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+pub struct Gtk3DisplayHandle {
+    /// A pointer to a `GtkApplication`.
+    pub application: *mut c_void,
+}
+
+/// Raw window handle for the GTK Tool Kit version 3.
+///
+/// ## Construction
+///
+/// ```
+/// # use raw_window_handle::Gtk3WindowHandle;
+/// let window_handle = Gtk3WindowHandle::empty();
+/// /* set fields */
+/// ```
+#[non_exhaustive]
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+pub struct Gtk3WindowHandle {
+    /// A pointer to a `GtkWidget`.
+    pub window: *mut c_void,
+}
+
+/// Raw display handle for the GTK Tool Kit version 4.
+///
+/// ## Construction
+///
+/// ```
+/// # use raw_window_handle::Gtk4DisplayHandle;
+/// let display_handle = Gtk4DisplayHandle::empty();
+/// /* set fields */
+/// ```
+#[non_exhaustive]
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+pub struct Gtk4DisplayHandle {
+    /// A pointer to a `GtkApplication`.
+    pub application: *mut c_void,
+}
+
+/// Raw window handle for the GTK Tool Kit version 4.
+///
+/// ## Construction
+///
+/// ```
+/// # use raw_window_handle::Gtk4WindowHandle;
+/// let window_handle = Gtk4WindowHandle::empty();
+/// /* set fields */
+/// ```
+#[non_exhaustive]
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+pub struct Gtk4WindowHandle {
+    /// A pointer to a `GtkWidget`.
+    pub window: *mut c_void,
+}
+
+impl Gtk3DisplayHandle {
+    pub fn empty() -> Self {
+        Self {
+            application: ptr::null_mut(),
+        }
+    }
+}
+
+impl Gtk3WindowHandle {
+    pub fn empty() -> Self {
+        Self {
+            window: ptr::null_mut(),
+        }
+    }
+}
+
+impl Gtk4DisplayHandle {
+    pub fn empty() -> Self {
+        Self {
+            application: ptr::null_mut(),
+        }
+    }
+}
+
+impl Gtk4WindowHandle {
+    pub fn empty() -> Self {
+        Self {
+            window: ptr::null_mut(),
+        }
+    }
+}

src/lib.rs

@@ -24,6 +24,7 @@ extern crate alloc;
 
 mod android;
 mod appkit;
+mod gtk;
 mod haiku;
 mod redox;
 mod uikit;
@@ -33,6 +34,7 @@ mod windows;
 
 pub use android::{AndroidDisplayHandle, AndroidNdkWindowHandle};
 pub use appkit::{AppKitDisplayHandle, AppKitWindowHandle};
+pub use gtk::{Gtk3DisplayHandle, Gtk3WindowHandle, Gtk4DisplayHandle, Gtk4WindowHandle};
 pub use haiku::{HaikuDisplayHandle, HaikuWindowHandle};
 pub use redox::{OrbitalDisplayHandle, OrbitalWindowHandle};
 pub use uikit::{UiKitDisplayHandle, UiKitWindowHandle};
@@ -174,6 +176,18 @@ pub enum RawWindowHandle {
     /// ## Availability Hints
     /// This variant is used on HaikuOS.
     Haiku(HaikuWindowHandle),
+    /// A raw window handle for GTK4.
+    ///
+    /// ## Availability Hints
+    ///
+    /// This variant is used on any system that supports the GTK toolkit.
+    Gtk4(Gtk4WindowHandle),
+    /// A raw window handle for GTK3.
+    ///
+    /// ## Availability Hints
+    ///
+    /// This variant is used on any system that supports the GTK toolkit.
+    Gtk3(Gtk3WindowHandle),
 }
 
 /// Display that wraps around a raw display handle.
@@ -304,4 +318,16 @@ pub enum RawDisplayHandle {
     /// ## Availability Hints
     /// This variant is used on HaikuOS.
     Haiku(HaikuDisplayHandle),
+    /// A raw display handle for GTK4.
+    ///
+    /// ## Availability Hints
+    ///
+    /// This variant is used on any system that supports the GTK toolkit.
+    Gtk4(Gtk4DisplayHandle),
+    /// A raw display handle for GTK3.
+    ///
+    /// ## Availability Hints
+    ///
+    /// This variant is used on any system that supports the GTK toolkit.
+    Gtk3(Gtk3DisplayHandle),
 }