Some Code Cleanup in UScreenSong

Add Procedure DeletePlaylist to TPlaylistManager
Add automatic Playlist Deleting if last Song is deleted
Fixed some Cover displaying Bugs when JumptoMenu is left

git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/trunk@242 b956fd51-792f-4845-bead-9b4dfca2ff2c

1 files changed, 68 insertions, 16 deletions

diff --git a/Game/Code/Classes/UPlaylist.pas b/Game/Code/Classes/UPlaylist.pas
index 67460ed7..55cf90ff 100644
--- a/Game/Code/Classes/UPlaylist.pas
+++ b/Game/Code/Classes/UPlaylist.pas
@@ -40,6 +40,7 @@ type
       Procedure   SetPlayList(Index: Cardinal);

 

       Function    AddPlaylist(Name: String): Cardinal;

+      Procedure   DelPlaylist(const Index: Cardinal);

 

       Procedure   AddItem(const SongID: Cardinal; const iPlaylist: Integer = -1);

       Procedure   DelItem(const iItem: Cardinal; const iPlaylist: Integer = -1);

@@ -197,27 +198,29 @@ begin
     //open File for Rewriting

     AssignFile(F, PlaylistPath + Playlists[Index].Filename);

     try

-      Rewrite(F);

+      try

+        Rewrite(F);

 

-      //Write Version (not nessecary but helpful)

-      WriteLn(F, '######################################');

-      WriteLn(F, '#Ultrastar Deluxe Playlist Format v1.0');

-      WriteLn(F, '#Playlist "' + Playlists[Index].Name + '" with ' + InttoStr(Length(Playlists[Index].Items)) + ' Songs.');

-      WriteLn(F, '######################################');

+        //Write Version (not nessecary but helpful)

+        WriteLn(F, '######################################');

+        WriteLn(F, '#Ultrastar Deluxe Playlist Format v1.0');

+        WriteLn(F, '#Playlist "' + Playlists[Index].Name + '" with ' + InttoStr(Length(Playlists[Index].Items)) + ' Songs.');

+        WriteLn(F, '######################################');

 

-      //Write Name Information

-      WriteLn(F, '#Name: ' + Playlists[Index].Name);

+        //Write Name Information

+        WriteLn(F, '#Name: ' + Playlists[Index].Name);

 

-      //Write Song Information

-      WriteLn(F, '#Songs:');

+        //Write Song Information

+        WriteLn(F, '#Songs:');

 

-      For I := 0 to high(Playlists[Index].Items) do

-      begin

-        WriteLn(F, Playlists[Index].Items[I].Artist + ' : ' + Playlists[Index].Items[I].Title);

+        For I := 0 to high(Playlists[Index].Items) do

+        begin

+          WriteLn(F, Playlists[Index].Items[I].Artist + ' : ' + Playlists[Index].Items[I].Title);

+        end;

+      except

+        log.LogError('Could not write Playlistfile "' + Playlists[Index].Name + '"');

       end;

-

     finally

-      log.LogError('Could not write Playlistfile "' + Playlists[Index].Name + '"');

       CloseFile(F);

     end;

   end;

@@ -247,6 +250,9 @@ begin
   CatSongs.CatNumShow := -3;

   Mode := 2;

 

+  //Set CurPlaylist

+  CurPlaylist := Index;

+

   //Show Cat in Topleft:

   ScreenSong.ShowCatTLCustom(Format(Theme.Playlist.CatText,[Playlists[Index].Name]));

 

@@ -287,6 +293,47 @@ begin
 end;

 

 //----------

+//DelPlaylist - Deletes a Playlist

+//----------

+Procedure   TPlayListManager.DelPlaylist(const Index: Cardinal);

+var

+  I: Integer;

+  Filename: String;

+begin

+  If Index > High(Playlists) then

+    Exit;

+

+  Filename := PlaylistPath + Playlists[Index].Filename;

+

+  //If not FileExists or File is not Writeable then exit

+  If (Not FileExists(Filename)) OR (FileisReadOnly(Filename)) then

+    Exit;

+

+

+  //Delete Playlist from FileSystem

+  if Not DeleteFile(Filename) then

+    Exit;

+

+  //Delete Playlist from Array

+  //move all PLs to the Hole

+  For I := Index to High(Playlists)-1 do

+    PlayLists[I] := PlayLists[I+1];

+

+  //Delete last Playlist

+  SetLength (Playlists, High(Playlists));

+

+  //If Playlist is Displayed atm

+  //-> Display Songs

+  if (CatSongs.CatNumShow = -3) and (Index = CurPlaylist) then

+  begin

+    ScreenSong.UnLoadDetailedCover;

+    CatSongs.SetFilter('', 0);

+    ScreenSong.Interaction := 0;

+    ScreenSong.FixSelected;

+  end;

+end;

+

+//----------

 //AddItem - Adds an Item to a specific Playlist

 //----------

 Procedure   TPlayListManager.AddItem(const SongID: Cardinal; const iPlaylist: Integer);

@@ -347,8 +394,13 @@ begin
     SavePlayList(P);

   end;

 

+  //Delete Playlist if Last Song is deleted

+  if (Length(PlayLists[P].Items) = 0) then

+  begin

+    DelPlaylist(P);

+  end

   //Correct Display when Editing current Playlist

-  if (CatSongs.CatNumShow = -3) and (P = CurPlaylist) then

+  else if (CatSongs.CatNumShow = -3) and (P = CurPlaylist) then

     SetPlaylist(P);

 end;