added functions/requests for changing icon

src/lib.rs

@@ -98,6 +98,8 @@ fn native_display() -> &'static Mutex<native::NativeDisplayData> {
 /// Window and associated to window rendering context related functions.
 /// in macroquad <= 0.3, it was ctx.screen_size(). Now it is window::screen_size()
 pub mod window {
+    use conf::Icon;
+
     use super::*;
 
     /// The same as
@@ -251,6 +253,13 @@ pub mod window {
             .unwrap();
     }
 
+    pub fn set_window_icon(new_icon: Icon) {
+        let d = native_display().lock().unwrap();
+        d.native_requests
+            .send(native::Request::SetWindowIcon { new_icon })
+            .unwrap();
+    }
+
     /// Get the position of the window.
     /// TODO: implement for other platforms
     #[cfg(any(target_os = "windows", target_os = "linux"))]

src/native.rs

@@ -69,6 +69,7 @@ pub(crate) enum Request {
     SetMouseCursor(crate::CursorIcon),
     SetWindowSize { new_width: u32, new_height: u32 },
     SetWindowPosition { new_x: u32, new_y: u32 },
+    SetWindowIcon {new_icon: Icon},
     SetFullscreen(bool),
     ShowKeyboard(bool),
 }
@@ -118,4 +119,6 @@ pub mod gl;
 #[cfg(target_arch = "wasm32")]
 pub use wasm::webgl as gl;
 
+use crate::conf::Icon;
+
 pub mod query_stab;

src/native/linux_x11.rs

@@ -271,6 +271,7 @@
         (self.libx11.XMoveWindow)(self.display, window, new_x, new_y);
     }
 
+
     fn show_mouse(&mut self, shown: bool) {
         unsafe {
             if shown {
@@ -358,6 +359,9 @@
                 SetWindowPosition { new_x, new_y } => {
                     self.set_window_position(self.window, new_x as _, new_y as _)
                 }
+                SetWindowIcon { new_icon } => {
+                    eprintln!("Not implemented for X11") 
+                }
                 SetFullscreen(fullscreen) => self.set_fullscreen(self.window, fullscreen),
                 ShowKeyboard(..) => {
                     eprintln!("Not implemented for X11")

src/native/macos.rs

@@ -204,6 +204,7 @@ impl MacosDisplay {
             SetWindowPosition { .. } => {
                 eprintln!("Not implemented for macos");
             }
+            SetWindowIcon {new_icon} => unsafe { set_icon(self.window, &new_icon) },
             _ => {}
         }
     }

src/native/windows.rs

@@ -160,7 +160,7 @@
         unsafe {
             #[cfg(target_arch = "x86_64")]
             SetWindowLongPtrA(self.wnd, GWL_STYLE, win_style as _);
             #[cfg(target_arch = "i686")]
             SetWindowLong(self.wnd, GWL_STYLE, win_style as _);
 
             if self.fullscreen {
@@ -837,8 +837,9 @@
                     new_height,
                 } => self.set_window_size(new_width as _, new_height as _),
                 SetWindowPosition { new_x, new_y } => self.set_window_position(new_x, new_y),
+                SetWindowIcon { new_icon } => set_icon(self.wnd, &new_icon),
                 SetFullscreen(fullscreen) => self.set_fullscreen(fullscreen),
                 ShowKeyboard(show) => {
                     eprintln!("Not implemented for windows")
                 }
             }
@@ -917,7 +918,7 @@
 
         #[cfg(target_arch = "x86_64")]
         SetWindowLongPtrA(wnd, GWLP_USERDATA, &mut display as *mut _ as isize);
         #[cfg(target_arch = "i686")]
         SetWindowLong(wnd, GWLP_USERDATA, &mut display as *mut _ as isize);
 
         let mut done = false;