1 files changed, 65 insertions, 0 deletions
diff --git a/source/fitz/link.c b/source/fitz/link.c
new file mode 100644
index 00000000..30dca222
--- /dev/null
+++ b/source/fitz/link.c
@@ -0,0 +1,65 @@
+#include "mupdf/fitz.h"
+
+void
+fz_free_link_dest(fz_context *ctx, fz_link_dest *dest)
+{
+	switch (dest->kind)
+	{
+	case FZ_LINK_NONE:
+	case FZ_LINK_GOTO:
+		break;
+	case FZ_LINK_URI:
+		fz_free(ctx, dest->ld.uri.uri);
+		break;
+	case FZ_LINK_LAUNCH:
+		fz_free(ctx, dest->ld.launch.file_spec);
+		break;
+	case FZ_LINK_NAMED:
+		fz_free(ctx, dest->ld.named.named);
+		break;
+	case FZ_LINK_GOTOR:
+		fz_free(ctx, dest->ld.gotor.file_spec);
+		break;
+	}
+}
+
+fz_link *
+fz_new_link(fz_context *ctx, const fz_rect *bbox, fz_link_dest dest)
+{
+	fz_link *link;
+
+	fz_try(ctx)
+	{
+		link = fz_malloc_struct(ctx, fz_link);
+		link->refs = 1;
+	}
+	fz_catch(ctx)
+	{
+		fz_free_link_dest(ctx, &dest);
+		fz_rethrow(ctx);
+	}
+	link->dest = dest;
+	link->rect = *bbox;
+	link->next = NULL;
+	return link;
+}
+
+fz_link *
+fz_keep_link(fz_context *ctx, fz_link *link)
+{
+	if (link)
+		link->refs++;
+	return link;
+}
+
+void
+fz_drop_link(fz_context *ctx, fz_link *link)
+{
+	while (link && --link->refs == 0)
+	{
+		fz_link *next = link->next;
+		fz_free_link_dest(ctx, &link->dest);
+		fz_free(ctx, link);
+		link = next;
+	}
+}