Create a new crate to expose the C++

api/sixtyfps-cpp/lib.rs

@@ -0,0 +1,50 @@
+/* LICENSE BEGIN
+    This file is part of the SixtyFPS Project -- https://sixtyfps.io
+    Copyright (c) 2020 Olivier Goffart <olivier.goffart@sixtyfps.io>
+    Copyright (c) 2020 Simon Hausmann <simon.hausmann@sixtyfps.io>
+
+    SPDX-License-Identifier: GPL-3.0-only
+    This file is also available under commercial licensing terms.
+    Please contact info@sixtyfps.io for more information.
+LICENSE END */
+/*! This scrates just expose the function used by the C++ integration */
+
+#[doc(hidden)]
+#[cold]
+pub fn use_modules() {
+    sixtyfps_rendering_backend_default::use_modules();
+}
+
+use sixtyfps_rendering_backend_default::backend;
+
+#[cfg(not(target_arch = "wasm32"))]
+use sixtyfps_corelib::window::ffi::ComponentWindowOpaque;
+use sixtyfps_corelib::window::ComponentWindow;
+
+#[no_mangle]
+pub unsafe extern "C" fn sixtyfps_component_window_init(out: *mut ComponentWindowOpaque) {
+    assert_eq!(
+        core::mem::size_of::<ComponentWindow>(),
+        core::mem::size_of::<ComponentWindowOpaque>()
+    );
+    core::ptr::write(out as *mut ComponentWindow, crate::backend().create_window());
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn sixtyfps_run_event_loop() {
+    crate::backend().run_event_loop();
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn sixtyfps_register_font_from_path(
+    path: &sixtyfps_corelib::SharedString,
+    error_str: *mut sixtyfps_corelib::SharedString,
+) {
+    core::ptr::write(
+        error_str,
+        match crate::backend().register_font_from_path(std::path::Path::new(path.as_str())) {
+            Ok(()) => Default::default(),
+            Err(err) => err.to_string().into(),
+        },
+    )
+}