Files
ncmpcpp/src/playlist.cpp
2011-11-12 19:47:47 +01:00

520 lines
14 KiB
C++

/***************************************************************************
* Copyright (C) 2008-2011 by Andrzej Rybczak *
* electricityispower@gmail.com *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#include <algorithm>
#include "display.h"
#include "global.h"
#include "helpers.h"
#include "menu.h"
#include "playlist.h"
#include "song.h"
#include "status.h"
using Global::MainHeight;
using Global::MainStartY;
Playlist *myPlaylist = new Playlist;
bool Playlist::ReloadTotalLength = 0;
bool Playlist::ReloadRemaining = 0;
bool Playlist::BlockNowPlayingUpdate = 0;
bool Playlist::BlockUpdate = 0;
const size_t Playlist::SortOptions = 10;
const size_t Playlist::SortDialogWidth = 30;
size_t Playlist::SortDialogHeight;
Menu< std::pair<std::string, MPD::Song::GetFunction> > *Playlist::SortDialog = 0;
void Playlist::Init()
{
static Display::ScreenFormat sf = { this, &Config.song_list_format };
Items = new Menu<MPD::Song>(0, MainStartY, COLS, MainHeight, Config.columns_in_playlist && Config.titles_visibility ? Display::Columns(COLS) : "", Config.main_color, brNone);
Items->CyclicScrolling(Config.use_cyclic_scrolling);
Items->CenteredCursor(Config.centered_cursor);
Items->HighlightColor(Config.main_highlight_color);
Items->SetSelectPrefix(&Config.selected_item_prefix);
Items->SetSelectSuffix(&Config.selected_item_suffix);
Items->SetItemDisplayer(Config.columns_in_playlist ? Display::SongsInColumns : Display::Songs);
Items->SetItemDisplayerUserData(&sf);
Items->SetGetStringFunction(Config.columns_in_playlist ? SongInColumnsToString : SongToString);
Items->SetGetStringFunctionUserData(&Config.song_list_format_dollar_free);
if (!SortDialog)
{
SortDialogHeight = std::min(int(MainHeight), 18);
SortDialog = new Menu< std::pair<std::string, MPD::Song::GetFunction> >((COLS-SortDialogWidth)/2, (MainHeight-SortDialogHeight)/2+MainStartY, SortDialogWidth, SortDialogHeight, "Sort songs by...", Config.main_color, Config.window_border);
SortDialog->CyclicScrolling(Config.use_cyclic_scrolling);
SortDialog->CenteredCursor(Config.centered_cursor);
SortDialog->SetItemDisplayer(Display::Pairs);
SortDialog->AddOption(std::make_pair("Artist", &MPD::Song::GetArtist));
SortDialog->AddOption(std::make_pair("Album", &MPD::Song::GetAlbum));
SortDialog->AddOption(std::make_pair("Disc", &MPD::Song::GetDisc));
SortDialog->AddOption(std::make_pair("Track", &MPD::Song::GetTrack));
SortDialog->AddOption(std::make_pair("Genre", &MPD::Song::GetGenre));
SortDialog->AddOption(std::make_pair("Year", &MPD::Song::GetDate));
SortDialog->AddOption(std::make_pair("Composer", &MPD::Song::GetComposer));
SortDialog->AddOption(std::make_pair("Performer", &MPD::Song::GetPerformer));
SortDialog->AddOption(std::make_pair("Title", &MPD::Song::GetTitle));
SortDialog->AddOption(std::make_pair("Filename", &MPD::Song::GetFile));
SortDialog->AddSeparator();
SortDialog->AddOption(std::make_pair("Sort", static_cast<MPD::Song::GetFunction>(0)));
SortDialog->AddOption(std::make_pair("Reverse", static_cast<MPD::Song::GetFunction>(0)));
SortDialog->AddOption(std::make_pair("Cancel", static_cast<MPD::Song::GetFunction>(0)));
}
w = Items;
isInitialized = 1;
}
void Playlist::SwitchTo()
{
using Global::myScreen;
using Global::myLockedScreen;
using Global::myInactiveScreen;
if (myScreen == this)
return;
if (!isInitialized)
Init();
itsScrollBegin = 0;
if (myLockedScreen)
UpdateInactiveScreen(this);
if (hasToBeResized || myLockedScreen)
Resize();
if (myScreen != this && myScreen->isTabbable())
Global::myPrevScreen = myScreen;
myScreen = this;
Items->Window::Clear();
EnableHighlighting();
if (w != Items) // even if sorting window is active, background has to be refreshed anyway
Items->Display();
Global::RedrawHeader = 1;
}
void Playlist::Resize()
{
size_t x_offset, width;
GetWindowResizeParams(x_offset, width);
Items->Resize(width, MainHeight);
Items->MoveTo(x_offset, MainStartY);
Items->SetTitle(Config.columns_in_playlist && Config.titles_visibility ? Display::Columns(Items->GetWidth()) : "");
if (w == SortDialog) // if sorting window is active, playlist needs refreshing
Items->Display();
SortDialogHeight = std::min(int(MainHeight), 18);
if (Items->GetWidth() >= SortDialogWidth && MainHeight >= 5)
{
SortDialog->Resize(SortDialogWidth, SortDialogHeight);
SortDialog->MoveTo(x_offset+(width-SortDialogWidth)/2, (MainHeight-SortDialogHeight)/2+MainStartY);
}
else // if screen is too low to display sorting window, fall back to items list
w = Items;
hasToBeResized = 0;
}
std::basic_string<my_char_t> Playlist::Title()
{
std::basic_string<my_char_t> result = U("Playlist ");
if (ReloadTotalLength || ReloadRemaining)
itsBufferedStats = TotalLength();
result += Scroller(TO_WSTRING(itsBufferedStats), itsScrollBegin, COLS-result.length()-(Config.new_design ? 2 : Global::VolumeState.length()));
return result;
}
void Playlist::EnterPressed()
{
if (w == Items)
{
if (!Items->Empty())
{
Mpd.PlayID(Items->Current().GetID());
Global::UpdateStatusImmediately = 1;
}
}
else if (w == SortDialog)
{
size_t pos = SortDialog->Choice();
size_t beginning = 0;
size_t end = Items->Size();
if (Items->hasSelected())
{
std::vector<size_t> list;
Items->GetSelected(list);
beginning = *list.begin();
end = *list.rbegin()+1;
}
if (pos > SortOptions)
{
if (pos == SortOptions+2) // reverse
{
BlockUpdate = 1;
ShowMessage("Reversing playlist order...");
Mpd.StartCommandsList();
for (size_t i = beginning, j = end-1; i < (beginning+end)/2; ++i, --j)
{
Mpd.Swap(i, j);
Items->Swap(i, j);
}
ShowMessage(Mpd.CommitCommandsList() ? "Playlist reversed!" : "Error while reversing playlist!");
w = Items;
return;
}
else if (pos == SortOptions+3) // cancel
{
w = Items;
return;
}
}
else
{
ShowMessage("Move tag types up and down to adjust sort order");
return;
}
ShowMessage("Sorting playlist...");
MPD::SongList playlist, cmp;
playlist.reserve(end-beginning);
for (size_t i = beginning; i < end; ++i)
{
(*Items)[i].SetPosition(i);
playlist.push_back(&(*Items)[i]);
}
cmp = playlist;
sort(playlist.begin(), playlist.end(), Playlist::Sorting);
if (playlist == cmp)
{
ShowMessage("Playlist is already sorted");
return;
}
BlockUpdate = 1;
Mpd.StartCommandsList();
do
{
for (size_t i = 0, j = beginning; i < playlist.size(); ++i, ++j)
{
if (playlist[i]->GetPosition() > j)
{
Mpd.Swap(playlist[i]->GetPosition(), j);
std::swap(cmp[playlist[i]->GetPosition()-beginning], cmp[i]);
Items->Swap(playlist[i]->GetPosition(), j);
}
cmp[i]->SetPosition(j);
}
}
while (playlist != cmp);
ShowMessage(Mpd.CommitCommandsList() ? "Playlist sorted!" : "Error while sorting playlist!");
w = Items;
}
}
void Playlist::SpacePressed()
{
if (w == Items && !Items->Empty())
{
Items->Select(Items->Choice(), !Items->isSelected());
Items->Scroll(wDown);
}
}
void Playlist::ReadKey(int &key)
{
w->ReadKey(key);
UpdateTimer();
}
void Playlist::MouseButtonPressed(MEVENT me)
{
if (w == Items && !Items->Empty() && Items->hasCoords(me.x, me.y))
{
if (size_t(me.y) < Items->Size() && (me.bstate & (BUTTON1_PRESSED | BUTTON3_PRESSED)))
{
Items->Goto(me.y);
if (me.bstate & BUTTON3_PRESSED)
EnterPressed();
}
else
Screen<Window>::MouseButtonPressed(me);
}
else if (w == SortDialog && SortDialog->hasCoords(me.x, me.y))
{
if (me.bstate & (BUTTON1_PRESSED | BUTTON3_PRESSED))
{
SortDialog->Goto(me.y);
if (me.bstate & BUTTON3_PRESSED)
EnterPressed();
}
else
Screen<Window>::MouseButtonPressed(me);
}
}
MPD::Song *Playlist::CurrentSong()
{
return w == Items && !Items->Empty() ? &Items->Current() : 0;
}
void Playlist::GetSelectedSongs(MPD::SongList &v)
{
if (myPlaylist->Items->Empty())
return;
std::vector<size_t> selected;
Items->GetSelected(selected);
if (selected.empty())
selected.push_back(Items->Choice());
for (std::vector<size_t>::const_iterator it = selected.begin(); it != selected.end(); ++it)
v.push_back(new MPD::Song(Items->at(*it)));
}
void Playlist::ApplyFilter(const std::string &s)
{
if (w == Items)
Items->ApplyFilter(s, 0, REG_ICASE | Config.regex_type);
}
void Playlist::Sort()
{
if (Items->GetWidth() < SortDialogWidth || MainHeight < 5)
ShowMessage("Screen is too small to display dialog window!");
else
{
SortDialog->Reset();
w = SortDialog;
}
}
void Playlist::AdjustSortOrder(int key)
{
if (Keypressed(key, Key.MvSongUp))
{
size_t pos = SortDialog->Choice();
if (pos > 0 && pos < SortOptions)
{
SortDialog->Swap(pos, pos-1);
SortDialog->Scroll(wUp);
}
}
else if (Keypressed(key, Key.MvSongDown))
{
size_t pos = SortDialog->Choice();
if (pos < SortOptions-1)
{
SortDialog->Swap(pos, pos+1);
SortDialog->Scroll(wDown);
}
}
}
void Playlist::FixPositions(size_t beginning)
{
bool was_filtered = Items->isFiltered();
Items->ShowAll();
for (size_t i = beginning; i < Items->Size(); ++i)
(*Items)[i].SetPosition(i);
if (was_filtered)
Items->ShowFiltered();
}
void Playlist::EnableHighlighting()
{
Items->Highlighting(1);
UpdateTimer();
}
bool Playlist::Sorting(MPD::Song *a, MPD::Song *b)
{
CaseInsensitiveStringComparison cmp;
for (size_t i = 0; i < SortOptions; ++i)
if (int ret = cmp(a->GetTags((*SortDialog)[i].second), b->GetTags((*SortDialog)[i].second)))
return ret < 0;
return a->GetPosition() < b->GetPosition();
}
std::string Playlist::TotalLength()
{
std::ostringstream result;
if (ReloadTotalLength)
{
itsTotalLength = 0;
for (size_t i = 0; i < Items->Size(); ++i)
itsTotalLength += (*Items)[i].GetTotalLength();
ReloadTotalLength = 0;
}
if (Config.playlist_show_remaining_time && ReloadRemaining && !Items->isFiltered())
{
itsRemainingTime = 0;
for (size_t i = NowPlaying; i < Items->Size(); ++i)
itsRemainingTime += (*Items)[i].GetTotalLength();
ReloadRemaining = 0;
}
result << '(' << Items->Size() << (Items->Size() == 1 ? " item" : " items");
if (Items->isFiltered())
{
Items->ShowAll();
size_t real_size = Items->Size();
Items->ShowFiltered();
if (Items->Size() != real_size)
result << " (out of " << Mpd.GetPlaylistLength() << ")";
}
if (itsTotalLength)
{
result << ", length: ";
ShowTime(result, itsTotalLength, Config.playlist_shorten_total_times);
}
if (Config.playlist_show_remaining_time && itsRemainingTime && !Items->isFiltered() && Items->Size() > 1)
{
result << " :: remaining: ";
ShowTime(result, itsRemainingTime, Config.playlist_shorten_total_times);
}
result << ')';
return result.str();
}
const MPD::Song *Playlist::NowPlayingSong()
{
bool was_filtered = Items->isFiltered();
Items->ShowAll();
const MPD::Song *s = isPlaying() ? &Items->at(NowPlaying) : 0;
if (was_filtered)
Items->ShowFiltered();
return s;
}
std::string Playlist::SongToString(const MPD::Song &s, void *data)
{
return s.toString(*static_cast<std::string *>(data));
}
std::string Playlist::SongInColumnsToString(const MPD::Song &s, void *)
{
return s.toString(Config.song_in_columns_to_string_format);
}
bool Playlist::Add(const MPD::Song &s, bool in_playlist, bool play, int position)
{
Global::BlockItemListUpdate = 1;
if (Config.ncmpc_like_songs_adding && in_playlist)
{
unsigned hash = s.GetHash();
if (play)
{
for (size_t i = 0; i < Items->Size(); ++i)
{
if (Items->at(i).GetHash() == hash)
{
Mpd.Play(i);
break;
}
}
return true;
}
else
{
Playlist::BlockUpdate = 1;
Mpd.StartCommandsList();
for (size_t i = 0; i < Items->Size(); ++i)
{
if ((*Items)[i].GetHash() == hash)
{
Mpd.Delete(i);
Items->DeleteOption(i);
i--;
}
}
Mpd.CommitCommandsList();
Playlist::BlockUpdate = 0;
return false;
}
}
else
{
int id = Mpd.AddSong(s, position);
if (id >= 0)
{
ShowMessage("Added to playlist: %s", s.toString(Config.song_status_format_no_colors).c_str());
if (play)
Mpd.PlayID(id);
return true;
}
else
return false;
}
}
bool Playlist::Add(const MPD::SongList &l, bool play, int position)
{
if (l.empty())
return false;
size_t old_playlist_size = Items->Size();
Mpd.StartCommandsList();
MPD::SongList::const_iterator it = l.begin();
if (position < 0)
{
for (; it != l.end(); ++it)
if (Mpd.AddSong(**it) < 0)
break;
}
else
{
MPD::SongList::const_reverse_iterator j = l.rbegin();
for (; j != l.rend(); ++j)
if (Mpd.AddSong(**j, position) < 0)
break;
}
if (!Mpd.CommitCommandsList())
return false;
if (play && old_playlist_size < Items->Size())
Mpd.Play(old_playlist_size);
if (position < 0 && Items->Back().GetHash() != l.back()->GetHash())
{
if (it != l.begin())
ShowMessage("%s", MPD::Message::PartOfSongsAdded);
return false;
}
else
return true;
}