playlist editor: add support for columns display mode

doc/config

@@ -258,6 +258,8 @@
 #
 #search_engine_display_mode = "classic" (classic/columns)
 #
+#playlist_editor_display_mode = "classic" (classic/columns)
+#
 #discard_colors_if_item_is_selected = "yes"
 #
 #incremental_seeking = "yes"

doc/ncmpcpp.1

@@ -192,6 +192,9 @@ Default display mode for Browser.
 .B search_engine_display_mode = classic/columns
 Default display mode for Search engine.
 .TP 
+.B playlist_editor_display_mode = classic/columns
+Default display mode for Playlist editor.
+.TP 
 .B discard_colors_if_item_is_selected = yes/no
 Indicates whether custom colors of tags have to be discarded if item is selected or not.
 .TP 

src/ncmpcpp.cpp

@@ -1399,6 +1399,21 @@ int main(int argc, char *argv[])
 				if (mySearcher->Main()->Size() > SearchEngine::StaticOptions)
 					mySearcher->Main()->SetTitle(Config.columns_in_search_engine && Config.titles_visibility ? Display::Columns(mySearcher->Main()->GetWidth()) : "");
 			}
+			else if (myScreen->ActiveWindow() == myPlaylistEditor->Content)
+			{
+				Config.columns_in_playlist_editor = !Config.columns_in_playlist_editor;
+				ShowMessage("Playlist editor display mode: %s", Config.columns_in_playlist_editor ? "Columns" : "Classic");
+				if (Config.columns_in_playlist_editor)
+				{
+					myPlaylistEditor->Content->SetItemDisplayer(Display::SongsInColumns);
+					myPlaylistEditor->Content->SetGetStringFunction(Playlist::SongInColumnsToString);
+				}
+				else
+				{
+					myPlaylistEditor->Content->SetItemDisplayer(Display::Songs);
+					myPlaylistEditor->Content->SetGetStringFunction(Playlist::SongToString);
+				}
+			}
 		}
 		else if (Keypressed(input, Key.ToggleSeparatorsInPlaylist))
 		{

src/playlist_editor.cpp

@@ -60,9 +60,9 @@ void PlaylistEditor::Init()
 	Content->CenteredCursor(Config.centered_cursor);
 	Content->SetSelectPrefix(&Config.selected_item_prefix);
 	Content->SetSelectSuffix(&Config.selected_item_suffix);
-	Content->SetItemDisplayer(Display::Songs);
+	Content->SetItemDisplayer(Config.columns_in_playlist_editor ? Display::SongsInColumns : Display::Songs);
 	Content->SetItemDisplayerUserData(&sf);
-	Content->SetGetStringFunction(Playlist::SongToString);
+	Content->SetGetStringFunction(Config.columns_in_playlist_editor ? Playlist::SongInColumnsToString : Playlist::SongToString);
 	Content->SetGetStringFunctionUserData(&Config.song_list_format_dollar_free);
 	
 	w = Playlists;

src/settings.cpp

@@ -405,6 +405,7 @@ void NcmpcppConfig::SetDefaults()
 	columns_in_playlist = false;
 	columns_in_browser = false;
 	columns_in_search_engine = false;
+	columns_in_playlist_editor = false;
 	header_visibility = true;
 	header_text_scrolling = true;
 	statusbar_visibility = true;
@@ -932,6 +933,10 @@ void NcmpcppConfig::Read()
 			{
 				columns_in_search_engine = v == "columns";
 			}
+			else if (name == "playlist_editor_display_mode")
+			{
+				columns_in_playlist_editor = v == "columns";
+			}
 			else if (name == "header_visibility")
 			{
 				header_visibility = v == "yes";

src/settings.h

@@ -215,6 +215,7 @@ struct NcmpcppConfig
 	bool columns_in_playlist;
 	bool columns_in_browser;
 	bool columns_in_search_engine;
+	bool columns_in_playlist_editor;
 	bool set_window_title;
 	bool header_visibility;
 	bool header_text_scrolling;