ironpress 1.4.4

Pure Rust HTML/CSS/Markdown to PDF converter with layout engine, LaTeX math, tables, images, custom fonts, and streaming output. No browser, no system dependencies.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47

use crate::layout::elements::{FlexRow, LayoutVisitor, TextBlock};
use crate::layout::engine::visit_layout_tree;

use super::support::layout_pages;

#[derive(Default)]
struct AtomicBoxCount {
    embedded: usize,
    independent_cells: usize,
}

impl LayoutVisitor for AtomicBoxCount {
    fn visit_text_block(&mut self, block: &TextBlock) {
        self.embedded += block
            .lines
            .iter()
            .flat_map(|line| &line.runs)
            .filter(|run| run.inline_box.is_some())
            .count();
    }

    fn visit_flex_row(&mut self, row: &FlexRow) {
        self.independent_cells += row.content.cells.len();
    }
}

#[test]
fn inline_block_embedded_between_text_is_not_laid_out_twice() {
    let pages = layout_pages(
        r#"<style>
            .line { width: 280px; padding: 8px; border: 2px solid; font-size: 18px; }
            .box { display: inline-block; width: 28px; height: 28px; }
        </style>
        <div class="line">Ax<span class="box"></span>yQ</div>"#,
    );

    let mut count = AtomicBoxCount::default();
    for page in &pages {
        for (_, element) in &page.elements {
            visit_layout_tree(element.as_ref(), &mut count);
        }
    }

    assert_eq!(pages.len(), 1);
    assert_eq!(count.embedded, 1);
    assert_eq!(count.independent_cells, 0);
}