Unify loudness settings, prepare for custom user config

gtk2_ardour/loudness_settings.h

@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2021 Robin Gareus <robin@gareus.org>
+ *
+ * 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef _gtkardour_loudness_settings_h_
+#define _gtkardour_loudness_settings_h_
+
+class XMLNode;
+
+struct CLoudnessPreset
+{
+	enum {
+		LR_dBFS,
+		LR_dBTP,
+		LR_Integrated,
+		LR_Short,
+		LR_Momentary,
+		LR_LAST
+	};
+
+	std::string label;
+	bool        enable[LR_LAST];
+	float       level[LR_LAST];
+	float       LUFS_range[2];
+	bool        report;
+	bool        user;
+};
+
+struct ALoudnessPreset : public CLoudnessPreset
+{
+	ALoudnessPreset (XMLNode const&);
+	ALoudnessPreset (std::string const&, bool enable[LR_LAST], float level[LR_LAST]);
+	ALoudnessPreset (CLoudnessPreset const& c) : CLoudnessPreset (c) {}
+
+	XMLNode& state () const;
+	bool operator==(ALoudnessPreset const&) const;
+};
+
+class ALoudnessPresets
+{
+public:
+	ALoudnessPresets (bool built_in_only);
+	~ALoudnessPresets ();
+
+	std::vector<ALoudnessPreset> const& presets () const {
+		return _p;
+	}
+
+	bool push_back (CLoudnessPreset const&);
+	bool erase (CLoudnessPreset const&);
+	bool erase (size_t);
+
+	CLoudnessPreset const&
+	operator[] (size_t which) const {
+		if (which >= _p.size ()) {
+			throw std::out_of_range ("preset index is out of range");
+		}
+		return _p[which];
+	}
+
+	CLoudnessPreset&
+	operator[] (size_t which) {
+		if (which >= _p.size ()) {
+			throw std::out_of_range ("preset index is out of range");
+		}
+		return _p[which];
+	}
+
+	size_t n_presets () const {
+		return _p.size ();
+	}
+
+	bool find_preset (CLoudnessPreset&) const;
+
+private:
+	std::vector <ALoudnessPreset> _p;
+	bool _save;
+};
+
+#endif