Extract StreamFormatter.

1 files changed, 92 insertions, 0 deletions

diff --git a/src/stream_formatter.h b/src/stream_formatter.h
new file mode 100644
index 00000000..acdcbb4c
--- /dev/null
+++ b/src/stream_formatter.h
@@ -0,0 +1,92 @@
+/*
+    Copyright (C) 2025 Carl Hetherington <cth@carlh.net>
+
+    This file is part of DCP-o-matic.
+
+    DCP-o-matic 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.
+
+    DCP-o-matic 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 DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+
+#ifndef LIBDCP_STREAM_FORMATTER_H
+#define LIBDCP_STREAM_FORMATTER_H
+
+
+#include "file.h"
+#include "verify_report.h"
+
+
+namespace dcp {
+
+
+class StreamFormatter : public Formatter
+{
+public:
+	StreamFormatter(boost::filesystem::path file)
+		: _file(file, "w")
+	{}
+
+	class Wrap : public Formatter::Wrap
+	{
+	public:
+		Wrap() = default;
+
+		Wrap(StreamFormatter* formatter, std::string const& close)
+			: _formatter(formatter)
+			, _close(close)
+		{}
+
+		Wrap(StreamFormatter* formatter, std::string const& close, std::function<void ()> closer)
+			: _formatter(formatter)
+			, _close(close)
+			, _closer(closer)
+		{}
+
+		Wrap(Wrap&& other)
+		{
+			std::swap(_formatter, other._formatter);
+			std::swap(_close, other._close);
+			std::swap(_closer, other._closer);
+		}
+
+		~Wrap()
+		{
+			if (_formatter) {
+				_formatter->file().puts(_close.c_str());
+			}
+			if (_closer) {
+				_closer();
+			}
+		}
+
+	private:
+		StreamFormatter* _formatter = nullptr;
+		std::string _close;
+		std::function<void ()> _closer = nullptr;
+	};
+
+	dcp::File& file() {
+		return _file;
+	}
+
+protected:
+	dcp::File _file;
+};
+
+
+}
+
+
+#endif
+