ray
53 lines
1.6 KiB
Markdown
53 lines
1.6 KiB
Markdown
# PDF Generation Pagination
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Source: `src/lib/pdf.ts`
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## Page-break logic
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Each service calculates its height before rendering. Page break triggers when `y + serviceHeight > CONTENT_BOTTOM - FOOTER_HEIGHT`.
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Key constants:
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- `CONTENT_BOTTOM = PAGE_H - MARGIN` (772)
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- `FOOTER_HEIGHT = 35` (reserved for separator + footer text + page number)
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## Height calculation (must match rendering yPos increments)
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```
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svcH = 0
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if hasDecision: svcH += 5 // badge
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svcH += 6 // name + price
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if priority: svcH += 16 // priority label + reason
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if recommendation: svcH += 8
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if explanation: svcH += lines * 5 + 2
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if partsNotInStock: svcH += 8 + (deliveryTime ? 8 : 0)
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if aftermarket: svcH += 8 + (partsList ? 8 : 0)
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svcH += 6 // separator + spacing
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```
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## After page break
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- Call `doc.addPage()` then set `yPos = MARGIN`
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- **Redraw current section header** (SERVICES APPROVED / POSTPONED SERVICES) so new page has context
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- Summary box uses same FOOTER_HEIGHT check before rendering
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## Footer
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Drawn on EVERY page via post-render loop:
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```ts
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const totalPages = doc.getNumberOfPages();
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for (let i = 1; i <= totalPages; i++) {
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drawFooter(doc, i, totalPages, settings, shopChargeAmount);
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}
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```
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Footer includes: separator line, shop message, validity note, "Page N of M"
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## String rendering (jspdf 4.x)
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NEVER pass arrays to `doc.text()` — jspdf 4.x uses different internal line spacing than manual yPos tracking, causing cascading desync and text overlap. Always render `splitTextToSize()` results per-line:
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```ts
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doc.splitTextToSize(text, CW).forEach((line) => {
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doc.text(line, MARGIN, y);
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y += 5;
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});
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```
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