Files
wayvr/wgui/src/components/button.rs
2025-06-28 17:39:53 +02:00

156 lines
3.6 KiB
Rust

use std::sync::Arc;
use taffy::{AlignItems, JustifyContent, prelude::length};
use crate::{
animation::{Animation, AnimationEasing},
components::Component,
drawing::{self, Color},
event::WidgetCallback,
layout::{Layout, WidgetID},
renderer_vk::text::{FontWeight, TextStyle},
widget::{
rectangle::{Rectangle, RectangleParams},
text::{TextLabel, TextParams},
util::WLength,
},
};
pub struct Params<'a> {
pub text: &'a str,
pub color: drawing::Color,
pub border_color: drawing::Color,
pub round: WLength,
pub style: taffy::Style,
pub text_style: TextStyle,
}
impl Default for Params<'_> {
fn default() -> Self {
Self {
text: "Text",
color: drawing::Color::new(1.0, 1.0, 1.0, 1.0),
border_color: drawing::Color::new(0.0, 0.0, 0.0, 1.0),
round: WLength::Units(4.0),
style: Default::default(),
text_style: TextStyle::default(),
}
}
}
pub struct Button {
pub color: drawing::Color,
pub body: WidgetID, // Rectangle
pub text_id: WidgetID, // Text
text_node: taffy::NodeId,
}
impl Component for Button {}
impl Button {
pub fn set_text<'a, C>(&self, callback_data: &mut C, text: &str)
where
C: WidgetCallback<'a>,
{
callback_data.call_on_widget(self.text_id, |label: &mut TextLabel| {
label.set_text(text);
});
callback_data.mark_redraw();
callback_data.mark_dirty(self.text_node);
}
}
fn anim_hover_in(button: Arc<Button>, widget_id: WidgetID) -> Animation {
Animation::new(
widget_id,
10,
AnimationEasing::OutQuad,
Box::new(move |data| {
let rect = data.obj.get_as_mut::<Rectangle>();
let brightness = data.pos * 0.5;
rect.params.color.r = button.color.r + brightness;
rect.params.color.g = button.color.g + brightness;
rect.params.color.b = button.color.b + brightness;
rect.params.border_color = Color::new(1.0, 1.0, 1.0, 1.0);
rect.params.border = 1.0 + data.pos;
data.needs_redraw = true;
}),
)
}
fn anim_hover_out(button: Arc<Button>, widget_id: WidgetID) -> Animation {
Animation::new(
widget_id,
15,
AnimationEasing::OutQuad,
Box::new(move |data| {
let rect = data.obj.get_as_mut::<Rectangle>();
let brightness = (1.0 - data.pos) * 0.5;
rect.params.color.r = button.color.r + brightness;
rect.params.color.g = button.color.g + brightness;
rect.params.color.b = button.color.b + brightness;
rect.params.border_color = Color::new(1.0, 1.0, 1.0, 1.0);
rect.params.border = 1.0 + (1.0 - data.pos) * 2.0;
data.needs_redraw = true;
}),
)
}
pub fn construct(
layout: &mut Layout,
parent: WidgetID,
params: Params,
) -> anyhow::Result<Arc<Button>> {
let mut style = params.style;
// force-override style
style.align_items = Some(AlignItems::Center);
style.justify_content = Some(JustifyContent::Center);
style.padding = length(1.0);
let (rect_id, _) = layout.add_child(
parent,
Rectangle::create(RectangleParams {
color: params.color,
round: params.round,
border_color: params.border_color,
border: 2.0,
..Default::default()
})?,
style,
)?;
let light_text = (params.color.r + params.color.g + params.color.b) < 1.5;
let (text_id, text_node) = layout.add_child(
rect_id,
TextLabel::create(TextParams {
content: String::from(params.text),
style: TextStyle {
weight: Some(FontWeight::Bold),
color: Some(if light_text {
Color::new(1.0, 1.0, 1.0, 1.0)
} else {
Color::new(0.0, 0.0, 0.0, 1.0)
}),
..params.text_style
},
})?,
taffy::Style {
..Default::default()
},
)?;
let button = Arc::new(Button {
body: rect_id,
color: params.color,
text_id,
text_node,
});
//TODO: Highlight background on mouse enter
//TODO: Bring back old color on mouse leave
Ok(button)
}