mirror of
https://github.com/slint-ui/slint.git
synced 2025-10-01 06:11:16 +00:00
87 lines
3.1 KiB
Rust
87 lines
3.1 KiB
Rust
/* 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 */
|
|
/*!
|
|
The purpose of this crate is to select the default backend for [SixtyFPS](https://sixtyfps.io)
|
|
|
|
The backend can either be a runtime or a build time decision. The runtime decision is decided
|
|
by the `SIXTYFPS_BACKEND` environment variable. The built time default depends on the platform.
|
|
In order for the crate to be available at runtime, they need to be added as feature
|
|
*/
|
|
|
|
use sixtyfps_corelib::window::ComponentWindow;
|
|
|
|
cfg_if::cfg_if! {
|
|
if #[cfg(any(target_os="windows", target_os="macos", target_os = "linux", target_os = "dragonfly", target_os = "freebsd", target_os = "openbsd", target_os = "netbsd"))] {
|
|
use sixtyfps_rendering_backend_qt as default_backend;
|
|
} else {
|
|
use sixtyfps_rendering_backend_gl as default_backend;
|
|
}
|
|
}
|
|
|
|
pub fn create_window() -> ComponentWindow {
|
|
#[cfg(any(
|
|
feature = "sixtyfps-rendering-backend-qt",
|
|
feature = "sixtyfps-rendering-backend-gl"
|
|
))]
|
|
let backend_config = std::env::var("SIXTYFPS_BACKEND").unwrap_or_default();
|
|
|
|
#[cfg(feature = "sixtyfps-rendering-backend-qt")]
|
|
if backend_config == "Qt" {
|
|
return sixtyfps_rendering_backend_qt::create_window();
|
|
}
|
|
#[cfg(feature = "sixtyfps-rendering-backend-gl")]
|
|
if backend_config == "GL" {
|
|
return sixtyfps_rendering_backend_gl::create_window();
|
|
}
|
|
|
|
#[cfg(any(
|
|
feature = "sixtyfps-rendering-backend-qt",
|
|
feature = "sixtyfps-rendering-backend-gl"
|
|
))]
|
|
if !backend_config.is_empty() {
|
|
eprintln!("Could not load rendering backend {}, fallback to default", backend_config)
|
|
}
|
|
|
|
#[cfg(feature = "sixtyfps-rendering-backend-gl")]
|
|
if !default_backend::IS_AVAILABLE {
|
|
// If Qt is not available always fallback to Gl
|
|
return sixtyfps_rendering_backend_gl::create_window();
|
|
}
|
|
default_backend::create_window()
|
|
}
|
|
|
|
pub use default_backend::{
|
|
native_widgets, register_application_font_from_memory, NativeGlobals, NativeWidgets,
|
|
HAS_NATIVE_STYLE,
|
|
};
|
|
|
|
#[doc(hidden)]
|
|
#[cold]
|
|
pub fn use_modules() {
|
|
default_backend::use_modules();
|
|
#[cfg(feature = "sixtyfps-rendering-backend-qt")]
|
|
sixtyfps_rendering_backend_qt::use_modules();
|
|
#[cfg(feature = "sixtyfps-rendering-backend-gl")]
|
|
sixtyfps_rendering_backend_gl::use_modules();
|
|
}
|
|
|
|
pub mod ffi {
|
|
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::create_window());
|
|
}
|
|
}
|