78 lines
2.3 KiB
Rust
78 lines
2.3 KiB
Rust
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//! Glue code between gdk and x11, allowing some `gdk_x11_*` functions.
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//!
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//! This is not a complete binding, but just provides what we need in a
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//! reasonable way.
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use gdk;
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use gdk_sys::GdkDisplay;
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use glib::translate::*;
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use x11::xlib::{Display, Window};
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// https://developer.gnome.org/gdk3/stable/gdk3-X-Window-System-Interaction.html
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mod ffi {
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use gdk_sys::{GdkDisplay, GdkWindow};
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use x11::xlib::{Display, Window};
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extern "C" {
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pub fn gdk_x11_get_default_xdisplay() -> *mut Display;
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pub fn gdk_x11_get_default_root_xwindow() -> Window;
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pub fn gdk_x11_window_foreign_new_for_display(display: *mut GdkDisplay,
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window: Window) -> * mut GdkWindow;
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}
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}
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/// Gets the default GTK+ display.
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///
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/// # Returns
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///
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/// the Xlib Display* for the display specified in the `--display`
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/// command line option or the `DISPLAY` environment variable.
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pub fn gdk_x11_get_default_xdisplay() -> *mut Display {
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unsafe {
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return ffi::gdk_x11_get_default_xdisplay();
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}
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}
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/// Gets the root window of the default screen (see `gdk_x11_get_default_screen()`).
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///
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/// # Returns
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///
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/// an Xlib Window.
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pub fn gdk_x11_get_default_root_xwindow() -> Window {
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unsafe {
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return ffi::gdk_x11_get_default_root_xwindow();
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}
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}
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/// Wraps a native window in a GdkWindow. The function will try to look up the
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/// window using `gdk_x11_window_lookup_for_display()` first. If it does not find
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/// it there, it will create a new window.
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///
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/// This may fail if the window has been destroyed. If the window was already
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/// known to GDK, a new reference to the existing GdkWindow is returned.
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/// ## `display`
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/// the GdkDisplay where the window handle comes from.
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/// ## ` window`
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/// an Xlib Window
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///
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/// # Returns
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///
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/// a GdkWindow wrapper for the native window, or `None` if the window has been
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/// destroyed. The wrapper will be newly created, if one doesn’t exist already.
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pub fn gdk_x11_window_foreign_new_for_display(gdk_display: &mut gdk::Display,
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xwindow: Window)
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-> Option<gdk::Window> {
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unsafe {
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let display: *mut GdkDisplay =
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mut_override(gdk_display.to_glib_none().0);
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return from_glib_full(
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ffi::gdk_x11_window_foreign_new_for_display(display, xwindow));
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}
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}
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