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Copy pathlib.rs
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323 lines (286 loc) · 9.99 KB
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#[cfg(target_os = "android")]
extern crate sapp_android as sapp;
#[cfg(target_os = "macos")]
extern crate sapp_darwin as sapp;
#[cfg(not(any(
target_os = "linux",
target_os = "macos",
target_os = "android",
target_arch = "wasm32",
windows
)))]
extern crate sapp_dummy as sapp;
#[cfg(target_os = "linux")]
extern crate sapp_linux as sapp;
#[cfg(target_arch = "wasm32")]
extern crate sapp_wasm as sapp;
#[cfg(windows)]
extern crate sapp_windows as sapp;
pub mod clipboard;
pub mod conf;
mod event;
pub mod fs;
pub mod graphics;
#[cfg(feature = "log-impl")]
pub mod log;
pub use event::*;
pub use graphics::*;
use std::ffi::CString;
pub use sapp::{rand, RAND_MAX};
pub mod date {
#[cfg(not(target_arch = "wasm32"))]
pub fn now() -> f64 {
use std::time::SystemTime;
let time = SystemTime::now()
.duration_since(SystemTime::UNIX_EPOCH)
.unwrap_or_else(|e| panic!(e));
time.as_secs_f64()
}
#[cfg(target_arch = "wasm32")]
pub fn now() -> f64 {
unsafe { sapp::time() }
}
}
impl Context {
/// This function simply quits the application without
/// giving the user a chance to intervene. Usually this might
/// be called when the user clicks the 'Ok' button in a 'Really Quit?'
/// dialog box
pub fn quit(&self) {
// its not possible to quit wasm anyway
#[cfg(not(target_arch = "wasm32"))]
unsafe {
sapp::sapp_quit();
}
}
/// Calling request_quit() will trigger "quit_requested_event" event , giving
/// the user code a chance to intervene and cancel the pending quit process
/// (for instance to show a 'Really Quit?' dialog box).
/// If the event handler callback does nothing, the application will be quit as usual.
/// To prevent this, call the function "cancel_quit()"" from inside the event handler.
pub fn request_quit(&self) {
// its not possible to quit wasm anyway
#[cfg(not(target_arch = "wasm32"))]
unsafe {
sapp::sapp_request_quit();
}
}
/// Cancels a pending quit request, either initiated
/// by the user clicking the window close button, or programmatically
/// by calling "request_quit()". The only place where calling this
/// function makes sense is from inside the event handler callback when
/// the "quit_requested_event" event has been received
pub fn cancel_quit(&self) {
// its not possible to quit wasm anyway
#[cfg(not(target_arch = "wasm32"))]
unsafe {
sapp::sapp_cancel_quit();
}
}
/// Capture mouse cursor to the current window
/// On WASM this will automatically hide cursor
/// On desktop this will bound cursor to windows border
/// NOTICE: on desktop cursor will not be automatically released after window lost focus
/// so set_cursor_grab(false) on window's focus lost is recommended.
/// TODO: implement window focus events
pub fn set_cursor_grab(&self, grab: bool) {
unsafe {
sapp::sapp_set_cursor_grab(grab);
}
}
/// Show or hide the mouse cursor
pub fn show_mouse(&self, shown: bool) {
unsafe {
sapp::sapp_show_mouse(shown);
}
}
}
pub enum UserData {
Owning((Box<dyn EventHandler>, Context)),
Free(Box<dyn EventHandlerFree>),
}
impl UserData {
pub fn owning(event_handler: impl EventHandler + 'static, ctx: Context) -> UserData {
UserData::Owning((Box::new(event_handler), ctx))
}
pub fn free(event_handler: impl EventHandlerFree + 'static) -> UserData {
UserData::Free(Box::new(event_handler))
}
}
/// call appropriate event handler function - with or without Context reference
macro_rules! event_call {
( $event_handler:expr, $fn:ident $(, $args:expr)*) => {{
match $event_handler {
UserData::Owning((ref mut event_handler, ref mut context)) => {
event_handler.$fn(context, $($args,)*);
}
UserData::Free(ref mut event_handler) => {
event_handler.$fn($($args,)*);
}
}
}};
}
enum UserDataState {
Uninitialized(Box<dyn 'static + FnOnce(Context) -> UserData>),
Intialized(UserData),
Empty,
}
extern "C" fn init(user_data: *mut ::std::os::raw::c_void) {
let data: &mut UserDataState = unsafe { &mut *(user_data as *mut UserDataState) };
let empty = UserDataState::Empty;
let f = std::mem::replace(data, empty);
let f = if let UserDataState::Uninitialized(f) = f {
f
} else {
panic!();
};
let context = graphics::Context::new();
let user_data = f(context);
std::mem::replace(data, UserDataState::Intialized(user_data));
}
extern "C" fn frame(user_data: *mut ::std::os::raw::c_void) {
let data: &mut UserDataState = unsafe { &mut *(user_data as *mut UserDataState) };
let data = if let UserDataState::Intialized(ref mut data) = data {
data
} else {
panic!()
};
event_call!(data, update);
event_call!(data, draw);
}
extern "C" fn event(event: *const sapp::sapp_event, user_data: *mut ::std::os::raw::c_void) {
let data: &mut UserDataState = unsafe { &mut *(user_data as *mut UserDataState) };
let event = unsafe { &*event };
let data = if let UserDataState::Intialized(ref mut data) = data {
data
} else {
panic!()
};
match event.type_ {
sapp::sapp_event_type_SAPP_EVENTTYPE_MOUSE_MOVE => {
event_call!(data, mouse_motion_event, event.mouse_x, event.mouse_y);
}
sapp::sapp_event_type_SAPP_EVENTTYPE_MOUSE_SCROLL => {
event_call!(data, mouse_wheel_event, event.scroll_x, event.scroll_y);
}
sapp::sapp_event_type_SAPP_EVENTTYPE_MOUSE_DOWN => {
event_call!(
data,
mouse_button_down_event,
MouseButton::from(event.mouse_button),
event.mouse_x,
event.mouse_y
);
}
sapp::sapp_event_type_SAPP_EVENTTYPE_MOUSE_UP => {
event_call!(
data,
mouse_button_up_event,
MouseButton::from(event.mouse_button),
event.mouse_x,
event.mouse_y
);
}
sapp::sapp_event_type_SAPP_EVENTTYPE_CHAR => {
if let Some(character) = std::char::from_u32(event.char_code) {
let key_mods = KeyMods::from(event.modifiers);
event_call!(data, char_event, character, key_mods, event.key_repeat)
}
}
sapp::sapp_event_type_SAPP_EVENTTYPE_KEY_DOWN => {
let keycode = KeyCode::from(event.key_code);
let key_mods = KeyMods::from(event.modifiers);
event_call!(data, key_down_event, keycode, key_mods, false)
}
sapp::sapp_event_type_SAPP_EVENTTYPE_KEY_UP => {
let keycode = KeyCode::from(event.key_code);
let key_mods = KeyMods::from(event.modifiers);
event_call!(data, key_up_event, keycode, key_mods);
}
sapp::sapp_event_type_SAPP_EVENTTYPE_RESIZED => {
event_call!(
data,
resize_event,
event.window_width as f32,
event.window_height as f32
);
}
sapp::sapp_event_type_SAPP_EVENTTYPE_TOUCHES_BEGAN
| sapp::sapp_event_type_SAPP_EVENTTYPE_TOUCHES_ENDED
| sapp::sapp_event_type_SAPP_EVENTTYPE_TOUCHES_CANCELLED
| sapp::sapp_event_type_SAPP_EVENTTYPE_TOUCHES_MOVED => {
for i in 0..(event.num_touches as usize) {
if event.touches[i].changed {
event_call!(
data,
touch_event,
event.type_.into(),
event.touches[i].identifier as u64,
event.touches[i].pos_x,
event.touches[i].pos_y
);
}
}
}
sapp::sapp_event_type_SAPP_EVENTTYPE_QUIT_REQUESTED => {
event_call!(data, quit_requested_event);
}
sapp::sapp_event_type_SAPP_EVENTTYPE_RAW_DEVICE => {
event_call!(data, raw_mouse_motion, event.mouse_dx, event.mouse_dy);
}
_ => {}
}
}
/// Start miniquad.
/// Initialization callback will be called when miniquad's Context is ready.
/// User can take ownership on Context and store it in user Code. Or return it back
/// to miniquad and give miniquad ownership on Context.
///
/// Variant wth EventHandler:
/// ```no_run
/// # use miniquad::*;
/// struct Stage;
///
/// impl EventHandler for Stage {
/// fn update(&mut self, _ctx: &mut Context) {}
/// fn draw(&mut self, _ctx: &mut Context) {}
/// }
/// fn main() {
/// miniquad::start(conf::Conf::default(), |ctx| UserData::owning(Stage, ctx));
/// }
/// ```
///
/// Variant wth EventHandlerFree:
/// ```no_run
/// # use miniquad::*;
/// struct Stage {
/// ctx: Context,
/// }
/// impl EventHandlerFree for Stage {
/// fn update(&mut self) {}
/// fn draw(&mut self) {}
/// }
/// fn main() {
/// miniquad::start(conf::Conf::default(), |ctx| UserData::free(Stage { ctx }));
/// }
/// ```
pub fn start<F>(conf: conf::Conf, f: F)
where
F: 'static + FnOnce(Context) -> UserData,
{
let mut desc: sapp::sapp_desc = unsafe { std::mem::zeroed() };
let title = CString::new(conf.window_title.as_bytes()).unwrap_or_else(|e| panic!(e));
let mut user_data = Box::new(UserDataState::Uninitialized(Box::new(f)));
desc.sample_count = conf.sample_count;
desc.width = conf.window_width;
desc.height = conf.window_height;
desc.fullscreen = conf.fullscreen as _;
desc.high_dpi = conf.high_dpi as _;
desc.window_title = title.as_ptr();
desc.user_data = &mut *user_data as *mut _ as *mut _;
desc.init_userdata_cb = Some(init);
desc.frame_userdata_cb = Some(frame);
desc.event_userdata_cb = Some(event);
std::mem::forget(user_data);
unsafe { sapp::sapp_run(&desc as *const _) };
}