/*
- Copyright (C) 2006 Paul Davis
-
+ Copyright (C) 2006 Paul Davis
+ Author: David Robillard
+
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.
#ifndef __ardour_data_type_h__
#define __ardour_data_type_h__
-#include <jack/jack.h>
+#include <string>
+#include <stdint.h>
+#include <glib.h>
+
+#include "ardour/libardour_visibility.h"
namespace ARDOUR {
-class DataType
+/** A type of Data Ardour is capable of processing.
+ *
+ * The majority of this class is dedicated to conversion to and from various
+ * other type representations, simple comparison between then, etc. This code
+ * is deliberately 'ugly' so other code doesn't have to be.
+ */
+class LIBARDOUR_API DataType
{
public:
+ /** Numeric symbol for this DataType.
+ *
+ * Castable to int for use as an array index (e.g. by ChanCount).
+ * Note this means NIL is (ntypes-1) and guaranteed to change when
+ * types are added, so this number is NOT suitable for serialization,
+ * network, or binary anything.
+ *
+ * WARNING: The number of non-NIL entries here must match num_types.
+ */
enum Symbol {
- NIL = 0,
- AUDIO,
- MIDI
+ AUDIO = 0,
+ MIDI = 1,
+ NIL = 2,
};
+ /** Number of types (not including NIL).
+ * WARNING: make sure this matches Symbol!
+ */
+ static const uint32_t num_types = 2;
+
DataType(const Symbol& symbol)
: _symbol(symbol)
{}
- /** Construct from a string (Used for loading from XML) */
- DataType(const string& str) {
- if (str == "audio")
+ /** Construct from a string (Used for loading from XML and Ports)
+ * The string can be as in an XML file (eg "audio" or "midi"), or a
+ */
+ DataType(const std::string& str)
+ : _symbol(NIL) {
+ if (!g_ascii_strncasecmp(str.c_str(), "audio", str.length())) {
_symbol = AUDIO;
- //else if (str == "midi")
- // _symbol = MIDI;
- else
- _symbol = NIL;
- }
-
- bool operator==(const Symbol symbol) { return _symbol == symbol; }
- bool operator!=(const Symbol symbol) { return _symbol != symbol; }
-
- /** Get the Jack type this DataType corresponds to */
- const char* to_jack_type() {
- switch (_symbol) {
- case AUDIO: return JACK_DEFAULT_AUDIO_TYPE;
- //case MIDI: return JACK_DEFAULT_MIDI_TYPE;
- default: return "";
+ } else if (!g_ascii_strncasecmp(str.c_str(), "midi", str.length())) {
+ _symbol = MIDI;
}
}
-
+
/** Inverse of the from-string constructor */
- const char* to_string() {
+ const char* to_string() const {
switch (_symbol) {
- case AUDIO: return "audio";
- //case MIDI: return "midi";
- default: return "unknown"; // reeeally shouldn't ever happen
+ case AUDIO: return "audio";
+ case MIDI: return "midi";
+ default: return "unknown"; // reeeally shouldn't ever happen
}
}
+ const char* to_i18n_string () const;
+
+ inline operator uint32_t() const { return (uint32_t)_symbol; }
+
+ /** DataType iterator, for writing generic loops that iterate over all
+ * available types.
+ */
+ class iterator {
+ public:
+
+ iterator(uint32_t index) : _index(index) {}
+
+ DataType operator*() { return DataType((Symbol)_index); }
+ iterator& operator++() { ++_index; return *this; } // yes, prefix only
+ bool operator==(const iterator& other) { return (_index == other._index); }
+ bool operator!=(const iterator& other) { return (_index != other._index); }
+
+ private:
+ friend class DataType;
+
+ uint32_t _index;
+ };
+
+ static iterator begin() { return iterator(0); }
+ static iterator end() { return iterator(num_types); }
+
+ bool operator==(const Symbol symbol) { return (_symbol == symbol); }
+ bool operator!=(const Symbol symbol) { return (_symbol != symbol); }
+
+ bool operator==(const DataType other) { return (_symbol == other._symbol); }
+ bool operator!=(const DataType other) { return (_symbol != other._symbol); }
+
private:
- Symbol _symbol;
+ Symbol _symbol; // could be const if not for the string constructor
};
-
} // namespace ARDOUR
#endif // __ardour_data_type_h__
projects / ardour.git / blobdiff