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use super::Qt5WidgetGenerator;
use crate::{
DataProcessor,
EventListener,
Widget,
};
use std::{
ffi::c_void,
sync::{
Arc,
RwLock,
Weak,
},
};
extern "C" {
fn uniui_gui_application_create() -> *mut c_void;
fn uniui_gui_application_start(
native_app: *mut c_void,
cb: extern "C" fn(*mut std::ffi::c_void),
app: *mut c_void,
);
fn uniui_gui_widget_show(native_app: *mut c_void);
}
extern "C" fn callback(app: *mut std::ffi::c_void) {
let app: &mut Qt5Application = unsafe { &mut *(app as *mut Qt5Application) };
app.process_data();
app.on_draw();
}
pub struct Qt5Application {
native: *mut c_void,
main_widget: Option<Box<dyn Widget>>,
widget_generator: Qt5WidgetGenerator,
data_processor_list: Vec<Arc<RwLock<dyn DataProcessor>>>,
}
impl Qt5Application {
pub fn start(f: &dyn Fn(&mut Qt5Application)) -> Result<(), ()> {
let mut app = Qt5Application::new();
f(&mut app);
app.layout();
log::trace!("app started");
unsafe {
uniui_gui_application_start(
app.native,
callback,
&mut app as *mut _ as *mut std::ffi::c_void,
);
};
Ok(())
}
pub fn set_title(
&self,
_title: &str,
) {
log::error!("set_title is not implemented for Qt5. Yet.");
}
pub fn set_local_path(
&mut self,
_module_address: &str,
) -> Result<(), ()> {
log::error!("set_local_path is not implemented for Qt5. Yet.");
return Ok(());
}
pub fn link_from_base(
&self,
link: &str,
) -> String {
log::error!("link_from_base is not implemented for Qt5. Yet.");
return link.to_string();
}
pub fn set_main_widget<T: 'static + Widget>(
&mut self,
widget: T,
) {
self.main_widget = Some(Box::new(widget));
}
pub fn add_data_processor<T>(
&mut self,
processor: T,
) -> Weak<RwLock<T>>
where
T: 'static + DataProcessor,
{
let holder = Arc::new(RwLock::new(processor));
let result = Arc::downgrade(&holder);
self.data_processor_list.push(holder);
return result;
}
pub fn add_event_listener<T>(
&self,
_e: &dyn EventListener<T>,
) {
}
pub fn get_env_var(
&self,
_var_name: &str,
) -> Option<String> {
None
}
pub fn replace_local_ref(
&self,
_: &str,
) {
}
pub fn get_host(&self) -> String {
return String::new();
}
fn new() -> Qt5Application {
let native = unsafe { uniui_gui_application_create() };
return Qt5Application {
native,
main_widget: None,
widget_generator: Qt5WidgetGenerator {},
data_processor_list: Vec::new(),
};
}
fn layout(&mut self) {
match self.main_widget.as_mut() {
Some(widget) => {
match widget.to_native(&mut self.widget_generator) {
Ok(native_main_widget) => {
unsafe {
uniui_gui_widget_show(native_main_widget);
};
},
Err(_) => log::error!("to_native failed"),
}
},
None => log::error!("main widget not set"),
}
}
fn on_draw(&mut self) {
match &mut self.main_widget {
Some(l) => l.draw(),
None => log::error!("no layout"),
}
}
fn process_data(&mut self) {
let start = std::time::SystemTime::now();
let msec_since_app_epoch = start
.duration_since(std::time::UNIX_EPOCH)
.expect("Time went backwards")
.as_millis() as i64;
self.main_widget = match self.main_widget.take() {
Some(mut l) => {
l.process_data(msec_since_app_epoch, self);
Some(l)
},
None => None,
};
let mut data_processor_list = self.data_processor_list.clone();
data_processor_list.iter_mut().for_each(|holder| {
match holder.write() {
Ok(mut item) => item.process_data(msec_since_app_epoch, self),
Err(e) => log::error!("can't lock data processor e:{:?}", e),
}
});
}
}