1 files changed, 73 insertions, 0 deletions
diff --git a/src/collection.cc b/src/collection.cc
new file mode 100644
index 0000000..1482b42
--- /dev/null
+++ b/src/collection.cc
@@ -0,0 +1,73 @@
+/*
+    Copyright (C) 2026 Carl Hetherington <cth@carlh.net>
+
+    This file is part of libttf.
+
+    libttf is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    libttf is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with libttf.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+
+#include "collection.h"
+#include "util.h"
+#include <boost/filesystem.hpp>
+#include <boost/filesystem/fstream.hpp>
+#include <iostream>
+
+
+using namespace ttf;
+
+
+Collection::Collection(boost::filesystem::path const& ttf_file)
+{
+	boost::filesystem::ifstream str(ttf_file, std::ios::binary);
+	std::vector<uint8_t> data(boost::filesystem::file_size(ttf_file));
+	str.read(reinterpret_cast<char*>(data.data()), data.size());
+
+	Source source(data);
+	read_source(source);
+}
+
+
+Collection::Collection(uint8_t const* data, int size)
+{
+	Source source(data, size);
+	read_source(source);
+}
+
+
+void
+Collection::read_source(Source& source)
+{
+	auto const ttc_tag = source.get_uint32();
+	if (ttc_tag != 0x74746366) {
+		throw InvalidTTCTag(ttc_tag);
+	}
+
+	auto const major_version = source.get_uint16();
+	auto const minor_version = source.get_uint16();
+	auto const num_fonts = source.get_uint32();
+
+	if (num_fonts == 0) {
+		return;
+	}
+
+	uint32_t offset = source.get_uint32();
+	for (uint32_t i = 0; i < num_fonts; ++i) {
+		Source font_source(source, offset);
+		_fonts.push_back(Font(font_source));
+	}
+}
+
+