71898056f3
there are a few gzip-compressed ttf as for now, looks like variable fonts aren't parsed properly by cosmic_text. Not sure why. Also, we probably need to have a fallback for CJK characters in the future, or just fallback to the built-in ones in the OS.
48 lines
1006 B
Rust
48 lines
1006 B
Rust
use std::rc::Rc;
|
|
|
|
use crate::{
|
|
any::AnyTrait,
|
|
event::{CallbackDataCommon, EventListenerID},
|
|
};
|
|
|
|
pub mod button;
|
|
pub mod checkbox;
|
|
pub mod slider;
|
|
pub mod tooltip;
|
|
|
|
pub struct InitData<'a> {
|
|
pub common: &'a mut CallbackDataCommon<'a>,
|
|
}
|
|
|
|
// common component data
|
|
#[derive(Default)]
|
|
pub struct ComponentBase {
|
|
#[allow(dead_code)]
|
|
lhandles: Vec<EventListenerID>,
|
|
}
|
|
|
|
pub trait ComponentTrait: AnyTrait {
|
|
fn base(&mut self) -> &mut ComponentBase;
|
|
fn init(&self, data: &mut InitData);
|
|
}
|
|
|
|
#[derive(Clone)]
|
|
pub struct Component(pub Rc<dyn ComponentTrait>);
|
|
|
|
pub type ComponentWeak = std::rc::Weak<dyn ComponentTrait>;
|
|
|
|
impl Component {
|
|
pub fn weak(&self) -> ComponentWeak {
|
|
Rc::downgrade(&self.0)
|
|
}
|
|
|
|
pub fn try_cast<T: 'static>(&self) -> anyhow::Result<Rc<T>> {
|
|
if !(*self.0).as_any().is::<T>() {
|
|
anyhow::bail!("try_cast: type not matching");
|
|
}
|
|
|
|
// safety: we already checked it above, should be safe to directly cast it
|
|
unsafe { Ok(Rc::from_raw(Rc::into_raw(self.0.clone()).cast())) }
|
|
}
|
|
}
|