Files
iris/src/widget/trait_fns.rs

149 lines
4.2 KiB
Rust

use super::*;
use crate::prelude::*;
// these methods should "not require any context" (require unit) because they're in core
widget_trait! {
pub trait CoreWidget<Rsc: UiRsc + 'static>;
fn pad(self, padding: impl Into<Padding>) -> impl WidgetFn<Rsc, Pad> {
|state| Pad {
padding: padding.into(),
inner: self.add_strong(state),
}
}
fn align(self, align: impl Into<Align>) -> impl WidgetFn<Rsc, Aligned> {
move |state| Aligned {
inner: self.add_strong(state),
align: align.into(),
}
}
fn center(self) -> impl WidgetFn<Rsc, Aligned> {
self.align(Align::CENTER)
}
fn label(self, label: impl Into<String>) -> impl WidgetIdFn<Rsc, WL::Widget> {
|state| {
let id = self.add(state);
state.ui_mut().widgets.set_label(id, label.into());
id
}
}
fn sized(self, size: impl Into<Size>) -> impl WidgetFn<Rsc, Sized> {
let size = size.into();
move |state| Sized {
inner: self.add_strong(state),
x: Some(size.x),
y: Some(size.y),
}
}
fn max_width(self, len: impl Into<Len>) -> impl WidgetFn<Rsc, MaxSize> {
let len = len.into();
move |state| MaxSize {
inner: self.add_strong(state),
x: Some(len),
y: None,
}
}
fn max_height(self, len: impl Into<Len>) -> impl WidgetFn<Rsc, MaxSize> {
let len = len.into();
move |state| MaxSize {
inner: self.add_strong(state),
x: None,
y: Some(len),
}
}
fn width(self, len: impl Into<Len>) -> impl WidgetFn<Rsc, Sized> {
let len = len.into();
move |state| Sized {
inner: self.add_strong(state),
x: Some(len),
y: None,
}
}
fn height(self, len: impl Into<Len>) -> impl WidgetFn<Rsc, Sized> {
let len = len.into();
move |state| Sized {
inner: self.add_strong(state),
x: None,
y: Some(len),
}
}
fn offset(self, amt: impl Into<UiVec2>) -> impl WidgetFn<Rsc, Offset> {
move |state| Offset {
inner: self.add_strong(state),
amt: amt.into(),
}
}
fn scrollable(self) -> impl WidgetIdFn<Rsc, Scroll> where Rsc: HasEvents {
move |state| {
Scroll::new(self.add_strong(state), Axis::Y)
.on(CursorSense::Scroll, |ctx, rsc| {
let delta = ctx.data.scroll_delta.y * 50.0;
ctx.widget(rsc).scroll(delta);
})
.add(state)
}
}
fn masked(self) -> impl WidgetFn<Rsc, Masked> {
move |state| Masked {
inner: self.add_strong(state),
}
}
fn background<T>(self, w: impl WidgetLike<Rsc, T>) -> impl WidgetFn<Rsc, Stack> {
move |state| Stack {
children: vec![w.add_strong(state), self.add_strong(state)],
size: StackSize::Child(1),
}
}
fn foreground<T>(self, w: impl WidgetLike<Rsc, T>) -> impl WidgetFn<Rsc, Stack> {
move |state| Stack {
children: vec![self.add_strong(state), w.add_strong(state)],
size: StackSize::Child(0),
}
}
fn layer_offset(self, offset: usize) -> impl WidgetFn<Rsc, LayerOffset> {
move |state| LayerOffset {
inner: self.add_strong(state),
offset,
}
}
fn to_any(self) -> impl WidgetIdFn<Rsc> {
|state| self.add(state)
}
fn set_ptr(self, ptr: WeakWidget<WidgetPtr>, state: &mut Rsc) {
let id = self.add_strong(state);
state.ui_mut().widgets[ptr].inner = Some(id);
}
}
pub trait CoreWidgetArr<Rsc, const LEN: usize, Wa: WidgetArrLike<Rsc, LEN, Tag>, Tag> {
fn span(self, dir: Dir) -> SpanBuilder<Rsc, LEN, Wa, Tag>;
fn stack(self) -> StackBuilder<Rsc, LEN, Wa, Tag>;
}
impl<State, const LEN: usize, Wa: WidgetArrLike<State, LEN, Tag>, Tag>
CoreWidgetArr<State, LEN, Wa, Tag> for Wa
{
fn span(self, dir: Dir) -> SpanBuilder<State, LEN, Wa, Tag> {
SpanBuilder::new(self, dir)
}
fn stack(self) -> StackBuilder<State, LEN, Wa, Tag> {
StackBuilder::new(self)
}
}