1 files changed, 118 insertions, 0 deletions
diff --git a/pdf/pdf_outline.c b/pdf/pdf_outline.c
new file mode 100644
index 00000000..b211060f
--- /dev/null
+++ b/pdf/pdf_outline.c
@@ -0,0 +1,118 @@
+#include "fitz.h"
+#include "mupdf.h"
+
+static pdf_outline *
+pdf_loadoutlineimp(pdf_xref *xref, fz_obj *dict)
+{
+	pdf_outline *node;
+	fz_obj *obj;
+
+	if (fz_isnull(dict))
+		return nil;
+
+	node = fz_malloc(sizeof(pdf_outline));
+	node->title = nil;
+	node->link = nil;
+	node->child = nil;
+	node->next = nil;
+	node->count = 0;
+
+	pdf_logpage("load outline {\n");
+
+	obj = fz_dictgets(dict, "Title");
+	if (obj)
+	{
+		node->title = pdf_toutf8(obj);
+		pdf_logpage("title %s\n", node->title);
+	}
+
+	obj = fz_dictgets(dict, "Count");
+	if (obj)
+	{
+		node->count = fz_toint(obj);
+	}
+
+	if (fz_dictgets(dict, "Dest") || fz_dictgets(dict, "A"))
+	{
+		node->link = pdf_loadlink(xref, dict);
+	}
+
+	obj = fz_dictgets(dict, "First");
+	if (obj)
+	{
+		node->child = pdf_loadoutlineimp(xref, obj);
+	}
+
+	pdf_logpage("}\n");
+
+	obj = fz_dictgets(dict, "Next");
+	if (obj)
+	{
+		node->next = pdf_loadoutlineimp(xref, obj);
+	}
+
+	return node;
+}
+
+pdf_outline *
+pdf_loadoutline(pdf_xref *xref)
+{
+	pdf_outline *node;
+	fz_obj *root, *obj, *first;
+
+	pdf_logpage("load outlines {\n");
+
+	node = nil;
+
+	root = fz_dictgets(xref->trailer, "Root");
+	obj = fz_dictgets(root, "Outlines");
+	if (obj)
+	{
+		first = fz_dictgets(obj, "First");
+		if (first)
+			node = pdf_loadoutlineimp(xref, first);
+	}
+
+	pdf_logpage("}\n");
+
+	return node;
+}
+
+void
+pdf_freeoutline(pdf_outline *outline)
+{
+	if (outline->child)
+		pdf_freeoutline(outline->child);
+	if (outline->next)
+		pdf_freeoutline(outline->next);
+	if (outline->link)
+		pdf_freelink(outline->link);
+	fz_free(outline->title);
+	fz_free(outline);
+}
+
+void
+pdf_debugoutline(pdf_outline *outline, int level)
+{
+	int i;
+	while (outline)
+	{
+		for (i = 0; i < level; i++)
+			putchar(' ');
+
+		if (outline->title)
+			printf("%s ", outline->title);
+		else
+			printf("<nil> ");
+
+		if (outline->link)
+			fz_debugobj(outline->link->dest);
+		else
+			printf("<nil>\n");
+
+		if (outline->child)
+			pdf_debugoutline(outline->child, level + 2);
+
+		outline = outline->next;
+	}
+}