new feature: toggle replay gain mode (requires >=mpd-0.16)

doc/keys

@@ -84,6 +84,8 @@
 #
 #key_toggle_consume = 'R'
 #
+#key_toggle_replay_gain_mode = 'Y'
+#
 #key_shuffle = 'Z'
 #
 #key_toggle_crossfade = 'x'

src/help.cpp

@@ -177,6 +177,8 @@ void Help::GetKeybindings()
 	*w << DisplayKeys(Key.ToggleRandom)		<< "Toggle random mode\n";
 	*w << DisplayKeys(Key.ToggleSingle)		<< "Toggle single mode\n";
 	*w << DisplayKeys(Key.ToggleConsume)		<< "Toggle consume mode\n";
+	if (Mpd.Version() >= 16)
+		*w << DisplayKeys(Key.ToggleReplayGainMode)	<< "Toggle replay gain mode\n";
 	*w << DisplayKeys(Key.Shuffle)			<< "Shuffle playlist\n";
 	*w << DisplayKeys(Key.ToggleCrossfade)		<< "Toggle crossfade mode\n";
 	*w << DisplayKeys(Key.SetCrossfade)		<< "Set crossfade\n";

src/mpdpp.cpp

@@ -22,6 +22,7 @@
 #include <algorithm>
 
 #include "charset.h"
+#include "error.h"
 #include "mpdpp.h"
 
 using namespace MPD;
@@ -417,6 +418,47 @@ void Connection::SetVolume(unsigned vol)
 		UpdateStatus();
 }
 
+std::string Connection::GetReplayGainMode() const
+{
+	if (!itsConnection || !mpd_send_command(itsConnection, "replay_gain_status", NULL))
+		return "Unknown";
+	std::string result;
+	if (mpd_pair *pair = mpd_recv_pair_named(itsConnection, "replay_gain_mode"))
+	{
+		result = pair->value;
+		if (!result.empty())
+			result[0] = toupper(result[0]);
+		mpd_return_pair(itsConnection, pair);
+	}
+	mpd_response_finish(itsConnection);
+	return result;
+}
+
+void Connection::SetReplayGainMode(ReplayGainMode mode) const
+{
+	if (!itsConnection)
+		return;
+	const char *rg_mode;
+	switch (mode)
+	{
+		case rgmOff:
+			rg_mode = "off";
+			break;
+		case rgmTrack:
+			rg_mode = "track";
+			break;
+		case rgmAlbum:
+			rg_mode = "album";
+			break;
+		default:
+			FatalError("undefined value of ReplayGainMode!");
+	}
+	if (!mpd_send_command(itsConnection, "replay_gain_mode", rg_mode, NULL))
+		return;
+	if (!isCommandsListEnabled)
+		mpd_response_finish(itsConnection);
+}
+
 void Connection::SetCrossfade(unsigned crossfade) const
 {
 	if (!itsConnection)

src/mpdpp.h

@@ -37,7 +37,8 @@ namespace MPD
 	
 	enum ItemType { itDirectory, itSong, itPlaylist };
 	enum PlayerState { psUnknown, psStop, psPlay, psPause };
-
+	enum ReplayGainMode { rgmOff, rgmTrack, rgmAlbum };
+	
 	struct Item
 	{
 		Item() : song(0) { }
@@ -161,6 +162,9 @@ namespace MPD
 			void SetCrossfade(unsigned) const;
 			void SetVolume(unsigned);
 			
+			std::string GetReplayGainMode() const;
+			void SetReplayGainMode(ReplayGainMode) const;
+			
 			int AddSong(const std::string &, int = -1); // returns id of added song
 			int AddSong(const Song &, int = -1); // returns id of added song
 			bool AddRandomSongs(size_t);

src/ncmpcpp.cpp

@@ -1782,6 +1782,22 @@ int main(int argc, char *argv[])
 			Config.wrapped_search = !Config.wrapped_search;
 			ShowMessage("Search mode: %s", Config.wrapped_search ? "Wrapped" : "Normal");
 		}
+		else if (Keypressed(input, Key.ToggleReplayGainMode) && Mpd.Version() >= 16)
+		{
+			LockStatusbar();
+			Statusbar() << "Replay gain mode ? [" << fmtBold << 'o' << fmtBoldEnd << "ff/" << fmtBold << 't' << fmtBoldEnd << "rack/" << fmtBold << 'a' << fmtBoldEnd << "lbum]";
+			wFooter->Refresh();
+			input = 0;
+			do
+			{
+				TraceMpdStatus();
+				wFooter->ReadKey(input);
+			}
+			while (input != 'o' && input != 't' && input != 'a');
+			UnlockStatusbar();
+			Mpd.SetReplayGainMode(input == 't' ? rgmTrack : (input == 'a' ? rgmAlbum : rgmOff));
+			ShowMessage("Replay gain mode: %s", Mpd.GetReplayGainMode().c_str());
+		}
 		else if (Keypressed(input, Key.ToggleSpaceMode))
 		{
 			Config.space_selects = !Config.space_selects;

src/settings.cpp

@@ -134,6 +134,7 @@ void DefaultKeys(ncmpcpp_keys &keys)
 	keys.ToggleRandom[0] = 'z';
 	keys.ToggleSingle[0] = 'y';
 	keys.ToggleConsume[0] = 'R';
+	keys.ToggleReplayGainMode[0] = 'Y';
 	keys.ToggleSpaceMode[0] = 't';
 	keys.ToggleAddMode[0] = 'T';
 	keys.ToggleMouse[0] = '|';
@@ -206,6 +207,7 @@ void DefaultKeys(ncmpcpp_keys &keys)
 	keys.ToggleRandom[1] = null_key;
 	keys.ToggleSingle[1] = null_key;
 	keys.ToggleConsume[1] = null_key;
+	keys.ToggleReplayGainMode[1] = null_key;
 	keys.ToggleSpaceMode[1] = null_key;
 	keys.ToggleAddMode[1] = null_key;
 	keys.ToggleMouse[1] = null_key;
@@ -412,6 +414,8 @@ void ReadKeys(ncmpcpp_keys &keys)
 				GetKeys(key, keys.ToggleSingle);
 			else if (key.find("key_toggle_consume ") != std::string::npos)
 				GetKeys(key, keys.ToggleConsume);
+			else if (key.find("key_toggle_replay_gain_mode ") != std::string::npos)
+				GetKeys(key, keys.ToggleReplayGainMode);
 			else if (key.find("key_toggle_space_mode ") != std::string::npos)
 				GetKeys(key, keys.ToggleSpaceMode);
 			else if (key.find("key_toggle_add_mode ") != std::string::npos)

src/settings.h

@@ -85,6 +85,7 @@ struct ncmpcpp_keys
 	int ToggleRandom[2];
 	int ToggleSingle[2];
 	int ToggleConsume[2];
+	int ToggleReplayGainMode[2];
 	int ToggleSpaceMode[2];
 	int ToggleAddMode[2];
 	int ToggleMouse[2];