almet/jardiflore
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Place multiple labels per page

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Alexis Métaireau 2025-04-04 13:34:27 +02:00
parent 7dd93ab825
commit e0adb40880
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GPG key ID: 1C21B876828E5FF2
1 changed files with 10 additions and 5 deletions
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15
main.rs
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@ -18,7 +18,8 @@ const A4_HEIGHT: f32 = 297.0;
// Configuration for the label // Configuration for the label
const DPI: f32 = 300.0; const DPI: f32 = 300.0;
const MM_TO_PX: f32 = DPI / 25.4; const MM_TO_PX: f32 = DPI / 25.4;
const LABEL_WIDTH: f32 = 220.0 * MM_TO_PX; const PX_TO_PT: f32 = 0.75;
const LABEL_WIDTH: f32 = 210.0 * MM_TO_PX;
const LABEL_HEIGHT: f32 = 16.0 * MM_TO_PX; const LABEL_HEIGHT: f32 = 16.0 * MM_TO_PX;
// Elements positionning // Elements positionning
@ -181,7 +182,7 @@ fn combine_labels(
// Group labels by page // Group labels by page
for chunk in labels.chunks(labels_per_page) { for chunk in labels.chunks(labels_per_page) {
let mut page_contents = Vec::new(); let mut page_contents = Vec::new();
let mut y_position = A4_HEIGHT - LABEL_HEIGHT; let mut y_position = 0.0;
for label in chunk { for label in chunk {
let pixels = label.clone().into_raw(); let pixels = label.clone().into_raw();
@ -197,13 +198,17 @@ fn combine_labels(
page_contents.push(Op::UseXobject { page_contents.push(Op::UseXobject {
id: image_id, id: image_id,
transform: XObjectTransform { transform: XObjectTransform {
translate_y: Some(printpdf::Pt(y_position)), translate_x: None,
..Default::default() translate_y: Some(printpdf::Px(y_position as usize).into_pt(DPI)),
rotate: None,
scale_x: None,
scale_y: None,
dpi: None,
}, },
}); });
// Move y position up for next label // Move y position up for next label
y_position -= LABEL_HEIGHT; y_position += LABEL_HEIGHT;
} }
// Create page and add to pages list // Create page and add to pages list