1 files changed, 57 insertions, 0 deletions
diff --git a/go-poppler/tags.go b/go-poppler/tags.go
new file mode 100644
index 0000000..fd24f70
--- /dev/null
+++ b/go-poppler/tags.go
@@ -0,0 +1,57 @@
+package poppler
+
+// #cgo pkg-config: poppler-glib
+// #include <poppler.h>
+// #include <stdlib.h>
+// #include <glib.h>
+// #include <unistd.h>
+import "C"
+import "strings"
+
+
+
+var zeroRect = Rectangle{X1: 0, X2: 0, Y1: 0, Y2: 0}
+
+func (d *Document) Tag(text string){
+	am := C.poppler_annot_mapping_new();
+
+	pRect := rectangleToPopplerRectangle(zeroRect)
+
+	annot := Annot {
+		am: am,
+	}
+	defer annot.Close()
+
+	am.annot = C.poppler_annot_text_new(d.doc, &pRect)
+	annot.SetContents(text)
+	annot.SetFlags(AnnotFlagHidden | AnnotFlagInvisible)
+
+	zeroPage := d.GetPage(0)
+	zeroPage.AddAnnot(annot)
+	defer zeroPage.Close()
+}
+
+
+func (d *Document) GetTags(filter string) []*Annot {
+	page := d.GetPage(0)
+	//defer page.Close()
+
+	annots := page.GetAnnots()
+	var tags []*Annot
+	for _, a := range(annots) {
+		if a.Type() == AnnotText &&
+		  rectEq(a.Rect(), zeroRect) &&
+		  a.Flags() & AnnotFlagHidden != 0 &&
+		  a.Flags() & AnnotFlagInvisible != 0 &&
+		  strings.HasPrefix(a.Contents(), filter){
+			tags = append(tags, a)
+		}
+	}
+
+	return tags
+}
+
+func (d *Document) RemoveTags(filter string){
+//	d.GetPage(0).AddAnnot(annot)
+	// TODO 
+}