Add doc::write/read_frame_tag()

src/doc/CMakeLists.txt

@@ -25,6 +25,7 @@ add_library(doc-lib
   file/col_file.cpp
   file/gpl_file.cpp
   frame_tag.cpp
+  frame_tag_io.cpp
   frame_tags.cpp
   image.cpp
   image_io.cpp

src/doc/frame_tag_io.cpp

@@ -0,0 +1,51 @@
+// Aseprite Document Library
+// Copyright (c) 2001-2015 David Capello
+//
+// This file is released under the terms of the MIT license.
+// Read LICENSE.txt for more information.
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "doc/frame_tag_io.h"
+
+#include "base/serialization.h"
+#include "base/unique_ptr.h"
+#include "doc/frame_tag.h"
+#include "doc/string_io.h"
+
+#include <iostream>
+
+namespace doc {
+
+using namespace base::serialization;
+using namespace base::serialization::little_endian;
+
+void write_frame_tag(std::ostream& os, FrameTag* tag)
+{
+  std::string name = tag->name();
+
+  write32(os, tag->id());
+  write32(os, tag->fromFrame());
+  write32(os, tag->toFrame());
+  write32(os, tag->color());
+  write_string(os, tag->name());
+}
+
+FrameTag* read_frame_tag(std::istream& is)
+{
+  ObjectId id = read32(is);
+  frame_t from = read32(is);
+  frame_t to = read32(is);
+  color_t color = read32(is);
+  std::string name = read_string(is);
+
+  base::UniquePtr<FrameTag> tag(new FrameTag(from, to));
+  tag->setColor(color);
+  tag->setName(name);
+  tag->setId(id);
+  return tag.release();
+}
+
+}

src/doc/frame_tag_io.h

@@ -0,0 +1,22 @@
+// Aseprite Document Library
+// Copyright (c) 2001-2015 David Capello
+//
+// This file is released under the terms of the MIT license.
+// Read LICENSE.txt for more information.
+
+#ifndef DOC_FRAME_TAG_IO_H_INCLUDED
+#define DOC_FRAME_TAG_IO_H_INCLUDED
+#pragma once
+
+#include <iosfwd>
+
+namespace doc {
+
+  class FrameTag;
+
+  void write_frame_tag(std::ostream& os, FrameTag* tag);
+  FrameTag* read_frame_tag(std::istream& is);
+
+} // namespace doc
+
+#endif