carbide_core 0.70.1

An easy-to-use, 100% Rust, extensible 2D GUI library.
Documentation 
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use crate::prelude::*;
use crate::render::primitive_kind::PrimitiveKind;
use crate::layout::layout::SingleChildLayout;

/// A basic, non-interactive rectangle shape widget.
#[derive(Debug, Clone, Widget)]
pub struct Border<GS> where GS: GlobalState {
    id: Uuid,
    child: Box<dyn Widget<GS>>,
    position: Point,
    dimension: Dimensions,
    color: Color,
    border_width: u32
}

impl<GS: GlobalState> WidgetExt<GS> for Border<GS> {}

impl<S: GlobalState> SingleChildLayout for Border<S> {
    fn flexibility(&self) -> u32 {
        self.child.flexibility()
    }
}

impl<S: GlobalState> CommonWidget<S> for Border<S> {
    fn get_id(&self) -> Uuid {
        self.id
    }

    fn get_flag(&self) -> Flags {
        Flags::EMPTY
    }

    fn get_children(&self) -> WidgetIter<S> {
        if self.child.get_flag() == Flags::PROXY {
            self.child.get_children()
        } else {
            WidgetIter::single(&self.child)
        }
    }

    fn get_children_mut(&mut self) -> WidgetIterMut<S> {
        if self.child.get_flag() == Flags::PROXY {
            self.child.get_children_mut()
        } else {
            WidgetIterMut::single(&mut self.child)
        }
    }

    fn get_proxied_children(&mut self) -> WidgetIterMut<S> {
        WidgetIterMut::single(&mut self.child)
    }

    fn get_position(&self) -> Point {
        self.position
    }

    fn set_position(&mut self, position: Dimensions) {
        self.position = position;
    }

    fn get_dimension(&self) -> Dimensions {
        self.dimension
    }

    fn set_dimension(&mut self, dimensions: Dimensions) {
        self.dimension = dimensions
    }
}

impl<S: GlobalState> Render<S> for Border<S> {

    fn get_primitives(&mut self, fonts: &text::font::Map) -> Vec<Primitive> {
        let rect = Rect::new(self.position, self.dimension);
        let (l, r, b, t) = rect.l_r_b_t();

        let width = self.border_width as f64;

        let left_border = Rect::new([l,b], [width, rect.h()]);
        let right_border = Rect::new([r-width,b], [width, rect.h()]);
        let top_border = Rect::new([l+width,b], [rect.w()-width*2.0, width]);
        let bottom_border = Rect::new([l+width,t-width], [rect.w()-width*2.0, width]);

        let border_color = self.color;
        let mut prims = vec![
            Primitive {
                kind: PrimitiveKind::Rectangle { color: border_color.clone()},
                rect: left_border
            },
            Primitive {
                kind: PrimitiveKind::Rectangle { color: border_color.clone()},
                rect: right_border
            },
            Primitive {
                kind: PrimitiveKind::Rectangle { color: border_color.clone()},
                rect: top_border
            },
            Primitive {
                kind: PrimitiveKind::Rectangle { color: border_color.clone()},
                rect: bottom_border
            },
        ];

        let children: Vec<Primitive> = self.get_children_mut().flat_map(|f| f.get_primitives(fonts)).collect();
        prims.extend(children);

        return prims;
    }
}

impl<S: GlobalState> Border<S> {

    pub fn color(mut self, color: Color) -> Box<Self> {
        self.color = color;
        Box::new(self)
    }

    pub fn border_width(mut self, width: u32) -> Box<Self> {
        self.border_width = width;
        Box::new(self)
    }

    pub fn initialize(child: Box<dyn Widget<S>>) -> Box<Self> {
        Box::new(Border {
            id: Uuid::new_v4(),
            child,
            position: [0.0,0.0],
            dimension: [100.0,100.0],
            color: Color::random(),
            border_width: 2
        })
    }
}