playlist: move sorting dialog related functions to separate file
This commit is contained in:
Andrzej Rybczak
211
src/sort_playlist.cpp
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211
src/sort_playlist.cpp
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/***************************************************************************
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* Copyright (C) 2008-2012 by Andrzej Rybczak *
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* electricityispower@gmail.com *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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***************************************************************************/
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#include "display.h"
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#include "global.h"
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#include "playlist.h"
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#include "settings.h"
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#include "sort_playlist.h"
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#include "statusbar.h"
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#include "utility/comparators.h"
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using Global::MainHeight;
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using Global::MainStartY;
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SortPlaylistDialog *mySortPlaylistDialog = new SortPlaylistDialog;
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void SortPlaylistDialog::init()
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{
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setDimensions();
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w = new NC::Menu< std::pair<std::string, MPD::Song::GetFunction> >((COLS-m_width)/2, (MainHeight-m_height)/2+MainStartY, m_width, m_height, "Sort songs by...", Config.main_color, Config.window_border);
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w->cyclicScrolling(Config.use_cyclic_scrolling);
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w->centeredCursor(Config.centered_cursor);
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w->setItemDisplayer(Display::Pair<std::string, MPD::Song::GetFunction>);
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w->addItem(std::make_pair("Artist", &MPD::Song::getArtist));
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w->addItem(std::make_pair("Album", &MPD::Song::getAlbum));
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w->addItem(std::make_pair("Disc", &MPD::Song::getDisc));
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w->addItem(std::make_pair("Track", &MPD::Song::getTrack));
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w->addItem(std::make_pair("Genre", &MPD::Song::getGenre));
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w->addItem(std::make_pair("Date", &MPD::Song::getDate));
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w->addItem(std::make_pair("Composer", &MPD::Song::getComposer));
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w->addItem(std::make_pair("Performer", &MPD::Song::getPerformer));
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w->addItem(std::make_pair("Title", &MPD::Song::getTitle));
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w->addItem(std::make_pair("Filename", &MPD::Song::getURI));
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m_sort_options = w->size();
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m_sort_entry = std::make_pair("Sort", static_cast<MPD::Song::GetFunction>(0));
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m_cancel_entry = std::make_pair("Cancel", static_cast<MPD::Song::GetFunction>(0));
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w->addSeparator();
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w->addItem(m_sort_entry);
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w->addItem(m_cancel_entry);
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isInitialized = true;
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}
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void SortPlaylistDialog::switchTo()
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{
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using Global::myScreen;
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using Global::myOldScreen;
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using Global::myLockedScreen;
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using Global::myInactiveScreen;
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assert(myScreen != this);
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if (!isInitialized)
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init();
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if (hasToBeResized)
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resize();
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myOldScreen = myScreen;
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myScreen = this;
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w->reset();
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refresh();
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}
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void SortPlaylistDialog::resize()
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{
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setDimensions();
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w->resize(m_width, m_height);
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w->moveTo((COLS-m_width)/2, (MainHeight-m_height)/2+MainStartY);
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hasToBeResized = false;
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}
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std::wstring SortPlaylistDialog::title()
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{
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return Global::myOldScreen->title();
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}
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void SortPlaylistDialog::enterPressed()
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{
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auto option = w->currentVI();
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if (*option == m_sort_entry)
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{
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auto begin = myPlaylist->main()->begin(), end = myPlaylist->main()->end();
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// if songs are selected, sort range from first selected to last selected
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if (myPlaylist->main()->hasSelected())
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{
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while (!begin->isSelected())
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++begin;
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while (!(end-1)->isSelected())
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--end;
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}
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size_t start_pos = begin - myPlaylist->main()->begin();
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MPD::SongList playlist;
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playlist.reserve(end - begin);
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for (; begin != end; ++begin)
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playlist.push_back(begin->value());
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LocaleStringComparison cmp(std::locale(), Config.ignore_leading_the);
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std::function<void(MPD::SongList::iterator, MPD::SongList::iterator)> iter_swap, quick_sort;
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auto song_cmp = [this, &cmp](const MPD::Song &a, const MPD::Song &b) -> bool {
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for (size_t i = 0; i < m_sort_options; ++i)
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{
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int res = cmp(a.getTags((*w)[i].value().second, Config.tags_separator),
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b.getTags((*w)[i].value().second, Config.tags_separator));
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if (res != 0)
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return res < 0;
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}
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return a.getPosition() < b.getPosition();
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};
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iter_swap = [&playlist, &start_pos](MPD::SongList::iterator a, MPD::SongList::iterator b) {
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std::iter_swap(a, b);
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Mpd.Swap(start_pos+a-playlist.begin(), start_pos+b-playlist.begin());
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};
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quick_sort = [this, &song_cmp, &quick_sort, &iter_swap](MPD::SongList::iterator first, MPD::SongList::iterator last) {
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if (last-first > 1)
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{
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MPD::SongList::iterator pivot = first+rand()%(last-first);
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iter_swap(pivot, last-1);
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pivot = last-1;
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MPD::SongList::iterator tmp = first;
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for (MPD::SongList::iterator i = first; i != pivot; ++i)
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if (song_cmp(*i, *pivot))
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iter_swap(i, tmp++);
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iter_swap(tmp, pivot);
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quick_sort(first, tmp);
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quick_sort(tmp+1, last);
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}
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};
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Statusbar::msg("Sorting...");
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Mpd.StartCommandsList();
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quick_sort(playlist.begin(), playlist.end());
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if (Mpd.CommitCommandsList())
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Statusbar::msg("Playlist sorted");
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Global::myOldScreen->switchTo();
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}
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else if (*option == m_cancel_entry)
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{
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Global::myOldScreen->switchTo();
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}
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else
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Statusbar::msg("Move tag types up and down to adjust sort order");
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}
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void SortPlaylistDialog::mouseButtonPressed(MEVENT me)
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{
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if (w->hasCoords(me.x, me.y))
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{
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if (me.bstate & (BUTTON1_PRESSED | BUTTON3_PRESSED))
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{
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w->Goto(me.y);
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if (me.bstate & BUTTON3_PRESSED)
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enterPressed();
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}
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else
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Screen<ScreenType>::mouseButtonPressed(me);
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}
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}
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void SortPlaylistDialog::moveSortOrderDown()
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{
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size_t pos = w->choice();
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if (pos < m_sort_options-1)
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{
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w->Swap(pos, pos+1);
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w->scroll(NC::wDown);
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}
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}
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void SortPlaylistDialog::moveSortOrderUp()
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{
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size_t pos = w->choice();
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if (pos > 0 && pos < m_sort_options)
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{
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w->Swap(pos, pos-1);
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w->scroll(NC::wUp);
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}
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}
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void SortPlaylistDialog::setDimensions()
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{
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m_height = std::min(size_t(17), MainHeight);
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m_width = 30;
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}
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