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use std::fmt::{self, Debug, Formatter};
use std::rc::Rc;
use fontdock::{FallbackTree, FontVariant};
use super::*;
/// A consecutive, styled run of text.
#[derive(Clone, PartialEq)]
pub struct TextNode {
/// The text.
pub text: String,
/// The text direction.
pub dir: Dir,
/// How to align this text node in its parent.
pub aligns: LayoutAligns,
/// The families used for font fallback.
pub families: Rc<FallbackTree>,
/// The font variant,
pub variant: FontVariant,
/// The font size.
pub font_size: Length,
/// The top end of the text bounding box.
pub top_edge: VerticalFontMetric,
/// The bottom end of the text bounding box.
pub bottom_edge: VerticalFontMetric,
}
impl Layout for TextNode {
fn layout(&self, ctx: &mut LayoutContext, _: &Areas) -> Fragment {
Fragment::Frame(
shape(
&self.text,
self.dir,
&self.families,
self.variant,
self.font_size,
self.top_edge,
self.bottom_edge,
&mut ctx.env.fonts,
),
self.aligns,
)
}
}
impl Debug for TextNode {
fn fmt(&self, f: &mut Formatter) -> fmt::Result {
write!(f, "Text({})", self.text)
}
}
impl From<TextNode> for Node {
fn from(text: TextNode) -> Self {
Self::Text(text)
}
}
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