From 17fb6add26291b31f7020e3551a7c8487130a747 Mon Sep 17 00:00:00 2001
From: "F.O." <scrotadamus@insiberia.net>
Date: Sun, 16 Feb 2025 17:56:08 +0100
Subject: genesi

---
 go-poppler/document.go | 161 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 161 insertions(+)
 create mode 100644 go-poppler/document.go

(limited to 'go-poppler/document.go')

diff --git a/go-poppler/document.go b/go-poppler/document.go
new file mode 100644
index 0000000..58365ca
--- /dev/null
+++ b/go-poppler/document.go
@@ -0,0 +1,161 @@
+package poppler
+
+// #cgo pkg-config: poppler-glib
+// #include <poppler.h>
+// #include <stdlib.h>
+// #include <glib.h>
+// #include <unistd.h>
+import "C"
+
+import (
+	"errors"
+	"unsafe"
+	"path/filepath"
+)
+
+type Document struct {
+	doc			poppDoc
+	openedPages		[]*Page
+}
+
+type DocumentInfo struct {
+	PdfVersion		string		`json:"pdf_version,omitempty"`
+	Title			string		`json:"title,omitempty"`
+	Author			string		`json:"author,omitempty"`
+	Subject			string		`json:"subject,omitempty"`
+	KeyWords		string		`json:"keywords,omitempty"`
+	Creator			string		`json:"creator,omitempty"`
+	Producer		string		`json:"producer,omitempty"`
+	Metadata		string		`json:"metadata,omitempty"`
+	CreationDate		int		`json:"creation_date,omitempty"`
+	ModificationDate	int		`json:"modification_date,omitempty"`
+	Pages			int		`json:"pages_number,omitempty"`
+	IsLinearized		bool		`json:"is_linearized,omitempty"`
+}
+
+func (d *Document) Info() DocumentInfo {
+	return DocumentInfo{
+		PdfVersion:       toString(C.poppler_document_get_pdf_version_string(d.doc)),
+		Title:            toString(C.poppler_document_get_title(d.doc)),
+		Author:           toString(C.poppler_document_get_author(d.doc)),
+		Subject:          toString(C.poppler_document_get_subject(d.doc)),
+		KeyWords:         toString(C.poppler_document_get_keywords(d.doc)),
+		Creator:          toString(C.poppler_document_get_creator(d.doc)),
+		Producer:         toString(C.poppler_document_get_producer(d.doc)),
+		Metadata:         toString(C.poppler_document_get_metadata(d.doc)),
+		CreationDate:     int(C.poppler_document_get_creation_date(d.doc)),
+		ModificationDate: int(C.poppler_document_get_modification_date(d.doc)),
+		Pages:            int(C.poppler_document_get_n_pages(d.doc)),
+		IsLinearized:     toBool(C.poppler_document_is_linearized(d.doc)),
+	}
+}
+
+func (d *Document) GetNPages() int {
+	return int(C.poppler_document_get_n_pages(d.doc))
+}
+
+func (d *Document) GetPage(i int) (page *Page) {
+	p := C.poppler_document_get_page(d.doc, C.int(i))
+
+	page = &Page{
+		p:              p,
+		openedAnnots:	nil,
+	}
+	d.openedPages = append(d.openedPages, page)
+
+	return page
+}
+
+func (d *Document) HasAttachments() bool {
+	return toBool(C.poppler_document_has_attachments(d.doc))
+}
+
+func (d *Document) GetNAttachments() int {
+	return int(C.poppler_document_get_n_attachments(d.doc))
+}
+
+func (d *Document) Close() {
+
+	for i := 0; i < len(d.openedPages); i++ {
+		d.openedPages[i].Close()
+	}
+	d.openedPages = []*Page{}
+
+	C.g_object_unref(C.gpointer(d.doc))
+}
+
+
+func (d *Document) NewAnnot(t AnnotType, r Rectangle, q []Quad) (Annot, error) {
+	am := C.poppler_annot_mapping_new();
+
+	annot := Annot {
+		am: am,
+	}
+
+	pRect := rectangleToPopplerRectangle(r)
+
+	pQuad := quadsToGArray(q)
+	defer C.g_array_free(pQuad, 1)
+
+
+	switch (t){
+	case AnnotHighlight:
+		am.annot = C.poppler_annot_text_markup_new_highlight(d.doc, &pRect, pQuad)
+	case AnnotUnderline:
+		am.annot = C.poppler_annot_text_markup_new_underline(d.doc, &pRect, pQuad)
+	case AnnotSquiggly:
+		am.annot = C.poppler_annot_text_markup_new_squiggly(d.doc, &pRect, pQuad)
+	case AnnotStrikeOut:
+		am.annot = C.poppler_annot_text_markup_new_strikeout(d.doc, &pRect, pQuad)
+	default:
+		C.poppler_annot_mapping_free(am)
+		return annot, errors.New("invalid type for new annotation")
+	}
+
+
+	if am.annot == nil {
+		C.poppler_annot_mapping_free(am)
+		return annot, errors.New("failed to create annotation")
+	}
+
+	/* Can't get real annot mapping area as done in
+	 * poppler_page_get_annot_mapping() since page is
+	 * needed for page->page->getCropBox() and
+	 * page->page->getRotate()
+	 *
+	 * as a placeholder we just use the annot rect
+	 */
+	annot.am.area = pRect
+
+	return annot, nil
+}
+
+func (d *Document) Save(filename string) (saved bool, err error) {
+	filename, err = filepath.Abs(filename)
+	if err != nil {
+		return false, err
+	}
+
+	var e *C.GError
+	cFilename := (*C.gchar)(C.CString(filename))
+	defer C.free(unsafe.Pointer(cFilename))
+
+	cUri := C.g_filename_to_uri(cFilename, nil, nil)
+	cBool := C.poppler_document_save (d.doc, cUri, &e);
+	if e != nil {
+		err = errors.New(C.GoString((*C.char)(e.message)))
+		return false, err
+	}
+
+	if cBool == C.TRUE {
+		return true, nil
+	}
+
+	return false, nil
+}
+
+/*
+func (d *Document) GetAttachments() []Attachment {
+	return
+}
+*/
-- 
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