Add simple window autosave function (darwin only)

Author: masche842

ui-sys/src/lib.rs

@@ -88,6 +88,7 @@ extern {
     pub fn uiWindowSetChild(w: *mut uiWindow, child: *mut uiControl);
     pub fn uiWindowMargined(w: *mut uiWindow) -> c_int;
     pub fn uiWindowSetMargined(w: *mut uiWindow, margined: c_int);
+    pub fn uiWindowSetAutosave(w: *mut uiWindow, name: *const c_char);
     pub fn uiNewWindow(title: *const c_char, width: c_int, height: c_int, hasMenubar: c_int)
                        -> *mut uiWindow;
 }

ui/examples/image.rs

@@ -25,6 +25,7 @@ impl AreaHandler for ImageAreaHandler {
 fn run() {
     let mainwin = Window::new("ui Control Gallery", 640, 480, true);
     mainwin.set_margined(true);
+    mainwin.set_autosave("libui-rs_image-example_main-window");
     mainwin.on_closing(Box::new(|_| {
         ui::quit();
         false

ui/src/windows.rs

@@ -84,6 +84,14 @@ impl Window {
         }
     }
 
+    pub fn set_autosave(&self, name: &str) {
+        ffi_utils::ensure_initialized();
+        unsafe {
+            let c_string = CString::new(name.as_bytes().to_vec()).unwrap();
+            ui_sys::uiWindowSetAutosave(self.ui_window, c_string.as_ptr())
+        }
+    }
+
     #[inline]
     pub fn new(title: &str, width: c_int, height: c_int, has_menubar: bool) -> Window {
         ffi_utils::ensure_initialized();