xlui 0.2.2

Rust GUI库
Documentation 
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use crate::render::WrcParam;
use crate::size::pos::Pos;
use crate::style::ClickStyle;

#[repr(C)]
#[derive(Debug, Copy, Clone, bytemuck::Pod, bytemuck::Zeroable)]
struct TriangleDrawParam {
    p0: [f32; 2],             //⬅️ 顶点位置1
    p1: [f32; 2],             //⬅️ 顶点位置2
    p2: [f32; 2],             //⬅️ 顶点位置3
    _pad0: [f32; 2],
    fill_color: [f32; 4],     //⬅️ 填充颜色
    border_thickness: f32,    //⬅️ 边框宽度
    _pad1: [f32; 3],
    border_color: [f32; 4],   //⬅️ 边框颜色
}

pub struct TriangleParam {
    pub p0: Pos,
    pub p1: Pos,
    pub p2: Pos,
    pub style: ClickStyle,
    draw: TriangleDrawParam,
}

impl TriangleParam {
    pub fn new(p0: Pos, p1: Pos, p2: Pos, style: ClickStyle) -> Self {
        let fill_color = style.dyn_fill(false, false).as_gamma_rgba();
        let border = style.dyn_border(false, false);
        let draw = TriangleDrawParam {
            p0: [p0.x, p0.y],
            p1: [p1.x, p1.y],
            p2: [p2.x, p2.y],
            _pad0: [0.0; 2],
            fill_color,
            border_thickness: border.width,
            _pad1: [0.0; 3],
            border_color: border.color.as_gamma_rgba(),
        };
        TriangleParam {
            p0,
            p1,
            p2,
            style,
            draw,
        }
    }

    // pub fn offset(&mut self, o: &Offset) {
    //     self.p0.x += o.x;
    //     self.p0.y += o.y;
    //     self.p1.x += o.x;
    //     self.p1.y += o.y;
    //     self.p2.x += o.x;
    //     self.p2.y += o.y;
    // }
}

impl WrcParam for TriangleParam {
    fn as_draw_param(&mut self, hovered: bool, mouse_down: bool) -> &[u8] {
        let fill_color = self.style.dyn_fill(mouse_down, hovered).as_gamma_rgba();
        let border = self.style.dyn_border(mouse_down, hovered);
        self.draw.p0 = [self.p0.x, self.p0.y];
        self.draw.p1 = [self.p1.x, self.p1.y];
        self.draw.p2 = [self.p2.x, self.p2.y];
        self.draw.border_thickness = border.width;
        self.draw.border_color = border.color.as_gamma_rgba();
        self.draw.fill_color = fill_color;
        bytemuck::bytes_of(&self.draw)
    }
}