winamp/Src/playlist/Playlist.cpp

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2024-09-24 12:54:57 +00:00
#include "main.h"
#include "Playlist.h"
#include <algorithm>
#include "../nu/AutoChar.h"
#include "../Winamp/strutil.h"
void Playlist::Clear()
{
for ( pl_entry *entry : entries )
delete entry;
entries.clear();
}
int Playlist::OnFile( const wchar_t *p_filename, const wchar_t *p_title, int p_lengthInMS, ifc_plentryinfo *p_info )
{
entries.push_back( new pl_entry( p_filename, p_title, p_lengthInMS, p_info ) );
return ifc_playlistloadercallback::LOAD_CONTINUE;
}
void Playlist::AppendWithInfo( const wchar_t *p_filename, const wchar_t *p_title, int p_lengthInMS )
{
entries.push_back( new pl_entry( p_filename, p_title, p_lengthInMS ) );
}
void Playlist::Insert( size_t p_index, const wchar_t *p_filename, const wchar_t *p_title, int p_lengthInMS )
{
entries.insert( entries.begin() + p_index, new pl_entry( p_filename, p_title, p_lengthInMS ) );
}
Playlist::~Playlist()
{
Clear();
}
size_t Playlist::GetNumItems()
{
return entries.size();
}
size_t Playlist::GetItem( size_t item, wchar_t *filename, size_t filenameCch )
{
if ( item >= entries.size() )
return 0;
return entries[ item ]->GetFilename( filename, filenameCch );
}
size_t Playlist::GetItemTitle( size_t item, wchar_t *title, size_t titleCch )
{
if ( item >= entries.size() )
return 0;
return entries[ item ]->GetTitle( title, titleCch );
}
const wchar_t *Playlist::ItemTitle( size_t item )
{
if ( item >= entries.size() )
return 0;
return entries[ item ]->filetitle;
}
const wchar_t *Playlist::ItemName( size_t item )
{
if ( item >= entries.size() )
return 0;
return entries[ item ]->filename;
}
int Playlist::GetItemLengthMilliseconds( size_t item )
{
if ( item >= entries.size() )
return -1;
return entries[ item ]->GetLengthInMilliseconds();
}
size_t Playlist::GetItemExtendedInfo( size_t item, const wchar_t *metadata, wchar_t *info, size_t infoCch )
{
if ( item >= entries.size() )
return 0;
return entries[ item ]->GetExtendedInfo( metadata, info, infoCch );
}
int Playlist::Reverse()
{
// TODO: keep a bool flag and just do size-item-1 every time a GetItem* function is called
std::reverse( entries.begin(), entries.end() );
return PLAYLIST_SUCCESS;
}
int Playlist::Swap( size_t item1, size_t item2 )
{
std::swap( entries[ item1 ], entries[ item2 ] );
return PLAYLIST_SUCCESS;
}
class RandMod
{
public:
RandMod( int ( *_generator )( ) ) : generator( _generator ) {}
int operator ()( int n ) { return generator() % n; }
int ( *generator )( );
};
int Playlist::Randomize( int ( *generator )( ) )
{
RandMod randMod( generator );
std::random_shuffle( entries.begin(), entries.end(), randMod );
return PLAYLIST_SUCCESS;
}
void Playlist::Remove( size_t item )
{
if ( entries.size() > item )
entries.erase( entries.begin() + item );
}
void Playlist::SetItemFilename( size_t item, const wchar_t *filename )
{
if ( item < entries.size() )
entries[ item ]->SetFilename( filename );
}
void Playlist::SetItemTitle( size_t item, const wchar_t *title )
{
if ( item < entries.size() )
entries[ item ]->SetTitle( title );
}
void Playlist::SetItemLengthMilliseconds( size_t item, int length )
{
if ( item < entries.size() )
entries[ item ]->SetLengthMilliseconds( length );
}
static bool PlayList_sortByTitle( pl_entry *&a, pl_entry *&b )
{
int comp = CompareStringW( LOCALE_USER_DEFAULT, NORM_IGNORECASE /*|NORM_IGNOREKANATYPE*/ | NORM_IGNOREWIDTH, a->filetitle, -1, b->filetitle, -1 );
return comp == CSTR_LESS_THAN;
// TODO: grab this function from winamp - return CompareStringLogical(a.strTitle, b.strTitle)<0;
}
static bool PlayList_sortByFile( pl_entry *&a, pl_entry *&b ) //const void *a, const void *b)
{
const wchar_t *file1 = PathFindFileNameW( a->filename );
const wchar_t *file2 = PathFindFileNameW( b->filename );
int comp = CompareStringW( LOCALE_USER_DEFAULT, NORM_IGNORECASE | /*NORM_IGNOREKANATYPE |*/ NORM_IGNOREWIDTH, file1, -1, file2, -1 );
return comp == CSTR_LESS_THAN;
// TODO: grab this function from winamp - return FileCompareLogical(file1, file2)<0;
}
static bool PlayList_sortByDirectory( pl_entry *&a, pl_entry *&b ) // by dir, then by p_title
{
const wchar_t *directory1 = a->filename;
const wchar_t *directory2 = b->filename;
const wchar_t *directoryEnd1 = scanstr_backcW( directory1, L"\\", 0 );
const wchar_t *directoryEnd2 = scanstr_backcW( directory2, L"\\", 0 );
int dirLen1 = (int)( directoryEnd1 - directory1 );
int dirLen2 = (int)( directoryEnd2 - directory2 );
if ( !dirLen1 && !dirLen2 ) // both in the current directory?
return PlayList_sortByFile( a, b ); // not optimized, because the function does another scanstr_back, but easy for now :)
if ( !dirLen1 ) // only the first dir is empty?
return true; // sort it first
if ( !dirLen2 ) // only the second dir empty?
return false; // empty dirs go first
#if 0 // TODO: grab this function from winamp
int comp = FileCompareLogicalN( directory1, dirLen1, directory2, dirLen2 );
if ( comp == 0 )
return PlayList_sortByFile( a, b );
else
return comp < 0;
#endif
int comp = CompareStringW( LOCALE_USER_DEFAULT, NORM_IGNORECASE | /*NORM_IGNOREKANATYPE | */NORM_IGNOREWIDTH, directory1, dirLen1, directory2, dirLen2 );
if ( comp == CSTR_EQUAL ) // same dir
return PlayList_sortByFile( a, b ); // do second sort
else // different dirs
return comp == CSTR_LESS_THAN;
}
int Playlist::SortByTitle()
{
std::sort( entries.begin(), entries.end(), PlayList_sortByTitle );
return 1;
}
int Playlist::SortByFilename()
{
std::sort( entries.begin(), entries.end(), PlayList_sortByFile );
return 1;
}
int Playlist::SortByDirectory()
{
std::sort( entries.begin(), entries.end(), PlayList_sortByDirectory );
return 1;
}
/*
int Playlist::Move(size_t itemSrc, size_t itemDest)
{
if (itemSrc < itemDest)
std::rotate(&entries[itemSrc], &entries[itemSrc], &entries[itemDest]);
else
if (itemSrc > itemDest)
std::rotate(&entries[itemDest], &entries[itemSrc], &entries[itemSrc]);
return 1;
}*/