Move things round a bit.

1 files changed, 215 insertions, 0 deletions

diff --git a/src/lib/exceptions.h b/src/lib/exceptions.h
new file mode 100644
index 000000000..b16275c20
--- /dev/null
+++ b/src/lib/exceptions.h
@@ -0,0 +1,215 @@
+/*
+    Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+
+    This program 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.
+
+    This program 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 this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+/** @file  src/exceptions.h
+ *  @brief Our exceptions.
+ */
+
+#include <stdexcept>
+#include <sstream>
+#include <cstring>
+
+/** @class StringError
+ *  @brief A parent class for exceptions using messages held in a std::string
+ */
+class StringError : public std::exception
+{
+public:
+	/** @param w Error message */
+	StringError (std::string w) {
+		_what = w;
+	}
+
+	virtual ~StringError () throw () {}
+
+	/** @return error message */
+	char const * what () const throw () {
+		return _what.c_str ();
+	}
+
+protected:
+	/** error message */
+	std::string _what;
+};
+
+/** @class DecodeError
+ *  @brief A low-level problem with the decoder (possibly due to the nature
+ *  of a source file).
+ */
+class DecodeError : public StringError
+{
+public:
+	DecodeError (std::string s)
+		: StringError (s)
+	{}
+};
+
+/** @class EncodeError
+ *  @brief A low-level problem with an encoder.
+ */
+class EncodeError : public StringError
+{
+public:
+	EncodeError (std::string s)
+		: StringError (s)
+	{}
+};
+
+/** @class FileError.
+ *  @brief Parent class for file-related errors.
+ */
+class FileError : public StringError
+{
+public:
+	FileError (std::string m, std::string f)
+		: StringError (m)
+		, _file (f)
+	{}
+
+	virtual ~FileError () throw () {}
+
+	std::string file () const {
+		return _file;
+	}
+
+private:
+	std::string _file;
+};
+	
+
+/** @class OpenFileError.
+ *  @brief Indicates that some error occurred when trying to open a file.
+ */
+class OpenFileError : public FileError
+{
+public:
+	/** @param f File that we were trying to open */
+	OpenFileError (std::string f)
+		: FileError ("could not open file " + f, f)
+	{}
+};
+
+/** @class CreateFileError.
+ *  @brief Indicates that some error occurred when trying to create a file.
+ */
+class CreateFileError : public FileError
+{
+public:
+	/** @param f File that we were trying to create */
+	CreateFileError (std::string f)
+		: FileError ("could not create file " + f, f)
+	{}
+};
+
+/** @class WriteFileError.
+ *  @brief Indicates that some error occurred when trying to write to a file
+ */
+class WriteFileError : public FileError
+{
+public:
+	/** @param f File that we were trying to write to.
+	 *  @param e errno value, or 0.
+	 */
+	WriteFileError (std::string f, int e)
+		: FileError ("", f)
+	{
+		std::stringstream s;
+		s << "could not write to file " << f;
+		if (e) {
+			s << " (" << strerror (e) << ")";
+		}
+		_what = s.str ();
+	}
+};
+
+/** @class SettingError.
+ *  @brief Indicates that something is wrong with a setting.
+ */
+class SettingError : public StringError
+{
+public:
+	/** @param s Name of setting that was required.
+	 *  @param m Message.
+	 */
+	SettingError (std::string s, std::string m)
+		: StringError (m)
+		, _setting (s)
+	{}
+
+	virtual ~SettingError () throw () {}
+
+	/** @return name of setting in question */
+	std::string setting () const {
+		return _setting;
+	}
+
+private:
+	std::string _setting;
+};
+
+/** @class MissingSettingError.
+ *  @brief Indicates that a Film is missing a setting that is required for some operation.
+ */
+class MissingSettingError : public SettingError
+{
+public:
+	/** @param s Name of setting that was required */
+	MissingSettingError (std::string s)
+		: SettingError (s, "missing required setting " + s)
+	{}
+};
+
+/** @class BadSettingError
+ *  @brief Indicates that a setting is bad in some way.
+ */
+class BadSettingError : public SettingError
+{
+public:
+	/** @param s Name of setting that is bad */
+	BadSettingError (std::string s, std::string m)
+		: SettingError (s, m)
+	{}
+};
+
+/** @class NetworkError.
+ *  @brief Indicates some problem with communication on the network.
+ */
+class NetworkError : public StringError
+{
+public:
+	NetworkError (std::string s)
+		: StringError (s)
+	{}
+};
+
+class PlayError : public StringError
+{
+public:
+	PlayError (std::string s)
+		: StringError (s)
+	{}
+};
+
+class DVDError : public StringError
+{
+public:
+	DVDError (std::string s)
+		: StringError (s)
+	{}
+};