40 lines
1.0 KiB
Rust
40 lines
1.0 KiB
Rust
use super::*;
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/// The top-level layout node.
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#[derive(Debug, Clone, PartialEq)]
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pub struct Document {
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/// The runs of pages with same properties.
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pub runs: Vec<Pages>,
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}
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impl Document {
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/// Layout the document.
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pub fn layout(&self, ctx: &mut LayoutContext) -> Vec<BoxLayout> {
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let mut layouts = vec![];
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for run in &self.runs {
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layouts.extend(run.layout(ctx));
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}
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layouts
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}
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}
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/// A variable-length run of pages that all have the same properties.
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#[derive(Debug, Clone, PartialEq)]
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pub struct Pages {
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/// The size of the pages.
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pub size: Size,
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/// The layout node that produces the actual pages (typically a [stack]).
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///
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/// [stack]: struct.Stack.html
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pub child: LayoutNode,
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}
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impl Pages {
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/// Layout the page run.
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pub fn layout(&self, ctx: &mut LayoutContext) -> Vec<BoxLayout> {
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let areas = Areas::repeat(self.size);
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let layouted = self.child.layout(ctx, &areas);
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layouted.into_iter().filter_map(Layouted::into_boxed).collect()
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}
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}
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