pdf: minimal PDF writer for generated documents

1 files changed, 27 insertions, 0 deletions

diff --git a/src/pdf.h b/src/pdf.h
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+++ b/src/pdf.h
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+#ifndef BOKF_PDF_H
+#define BOKF_PDF_H
+
+#include <stddef.h>
+
+struct pdf;
+
+/* One-page A4 (595x842 pt) PDF 1.4 writer. Coordinates are in points with a
+   top-left origin; pdf_text's baseline is measured from the top. Colours are
+   "#rrggbb". Fonts are the base-14 Helvetica ("H") and Helvetica-Bold ("HB")
+   with WinAnsiEncoding; UTF-8 input is converted to WinAnsi. */
+
+struct pdf *pdf_new(void);
+int pdf_page(struct pdf *p);
+void pdf_fill_rect(struct pdf *p, double x, double y, double w, double h,
+                   const char *rgb);
+void pdf_line(struct pdf *p, double x1, double y1, double x2, double y2,
+              double width, const char *rgb);
+void pdf_text(struct pdf *p, double x, double baseline, const char *font,
+              double size, const char *rgb, const char *utf8);
+double pdf_text_width(const char *font, double size, const char *utf8);
+double pdf_font_ascent(const char *font, double size);
+void pdf_path(struct pdf *p, const char *path, double x, double y,
+              const char *rgb);
+unsigned char *pdf_finish(struct pdf *p, size_t *len);
+
+#endif