Expose filepath in columns view (#530)

* Expose filepath in columns view

* update

doc/config

@@ -172,6 +172,7 @@
 ##
 ## %l - length
 ## %f - filename
+## %F - full filepath
 ## %D - directory
 ## %a - artist
 ## %A - album artist

doc/ncmpcpp.1

@@ -472,6 +472,7 @@ For song format you can use:
 
  %l - length
  %f - filename
+ %F - full filepath
  %D - directory
  %a - artist
  %A - album artist

src/display.cpp

@@ -47,6 +47,8 @@ const wchar_t *toColumnName(char c)
 			return L"Filename";
 		case 'D':
 			return L"Directory";
+		case 'F':
+			return L"Filepath";
 		case 'a':
 			return L"Artist";
 		case 'A':

src/utility/type_conversions.cpp

@@ -168,6 +168,8 @@ MPD::Song::GetFunction charToGetFunction(char c)
 			return &MPD::Song::getDirectory;
 		case 'f':
 			return &MPD::Song::getName;
+		case 'F':
+			return &MPD::Song::getURI;
 		case 'a':
 			return &MPD::Song::getArtist;
 		case 'A':