Files
ncmpcpp/src/playlist_editor.cpp
2014-09-03 22:00:25 +02:00

601 lines
15 KiB
C++

/***************************************************************************
* Copyright (C) 2008-2014 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 <boost/bind.hpp>
#include <boost/date_time/posix_time/posix_time.hpp>
#include <cassert>
#include "charset.h"
#include "display.h"
#include "global.h"
#include "helpers.h"
#include "playlist.h"
#include "playlist_editor.h"
#include "mpdpp.h"
#include "regex_filter.h"
#include "status.h"
#include "statusbar.h"
#include "tag_editor.h"
#include "utility/comparators.h"
#include "title.h"
#include "screen_switcher.h"
using Global::MainHeight;
using Global::MainStartY;
PlaylistEditor *myPlaylistEditor;
namespace {
const int pe_timeout = 250;
const auto fetch_delay = boost::posix_time::milliseconds(pe_timeout);
size_t LeftColumnStartX;
size_t LeftColumnWidth;
size_t RightColumnStartX;
size_t RightColumnWidth;
std::string SongToString(const MPD::Song &s);
bool PlaylistEntryMatcher(const boost::regex &rx, const std::string &playlist);
bool SongEntryMatcher(const boost::regex &rx, const MPD::Song &s);
}
PlaylistEditor::PlaylistEditor()
: m_timer(boost::posix_time::from_time_t(0))
{
LeftColumnWidth = COLS/3-1;
RightColumnStartX = LeftColumnWidth+1;
RightColumnWidth = COLS-LeftColumnWidth-1;
Playlists = NC::Menu<std::string>(0, MainStartY, LeftColumnWidth, MainHeight, Config.titles_visibility ? "Playlists" : "", Config.main_color, NC::Border::None);
Playlists.setHighlightColor(Config.active_column_color);
Playlists.cyclicScrolling(Config.use_cyclic_scrolling);
Playlists.centeredCursor(Config.centered_cursor);
Playlists.setSelectedPrefix(Config.selected_item_prefix);
Playlists.setSelectedSuffix(Config.selected_item_suffix);
Playlists.setItemDisplayer([](NC::Menu<std::string> &menu) {
menu << Charset::utf8ToLocale(menu.drawn()->value());
});
Content = NC::Menu<MPD::Song>(RightColumnStartX, MainStartY, RightColumnWidth, MainHeight, Config.titles_visibility ? "Playlist content" : "", Config.main_color, NC::Border::None);
Content.setHighlightColor(Config.main_highlight_color);
Content.cyclicScrolling(Config.use_cyclic_scrolling);
Content.centeredCursor(Config.centered_cursor);
Content.setSelectedPrefix(Config.selected_item_prefix);
Content.setSelectedSuffix(Config.selected_item_suffix);
switch (Config.playlist_editor_display_mode)
{
case DisplayMode::Classic:
Content.setItemDisplayer(boost::bind(Display::Songs, _1, contentProxyList(), Config.song_list_format));
break;
case DisplayMode::Columns:
Content.setItemDisplayer(boost::bind(Display::SongsInColumns, _1, contentProxyList()));
break;
}
w = &Playlists;
}
void PlaylistEditor::resize()
{
size_t x_offset, width;
getWindowResizeParams(x_offset, width);
LeftColumnStartX = x_offset;
LeftColumnWidth = width/3-1;
RightColumnStartX = LeftColumnStartX+LeftColumnWidth+1;
RightColumnWidth = width-LeftColumnWidth-1;
Playlists.resize(LeftColumnWidth, MainHeight);
Content.resize(RightColumnWidth, MainHeight);
Playlists.moveTo(LeftColumnStartX, MainStartY);
Content.moveTo(RightColumnStartX, MainStartY);
hasToBeResized = 0;
}
std::wstring PlaylistEditor::title()
{
return L"Playlist editor";
}
void PlaylistEditor::refresh()
{
Playlists.display();
drawSeparator(RightColumnStartX-1);
Content.display();
}
void PlaylistEditor::switchTo()
{
SwitchTo::execute(this);
markSongsInPlaylist(contentProxyList());
drawHeader();
refresh();
}
void PlaylistEditor::update()
{
if (Playlists.reallyEmpty() || m_playlists_update_requested)
{
m_playlists_update_requested = false;
Playlists.clearSearchResults();
withUnfilteredMenuReapplyFilter(Playlists, [this]() {
size_t idx = 0;
Mpd.GetPlaylists([this, &idx](std::string playlist) {
if (idx < Playlists.size())
Playlists[idx].value() = playlist;
else
Playlists.addItem(playlist);
++idx;
});
if (idx < Playlists.size())
Playlists.resizeList(idx);
std::sort(Playlists.beginV(), Playlists.endV(),
LocaleBasedSorting(std::locale(), Config.ignore_leading_the));
});
Playlists.refresh();
}
if (!Playlists.empty()
&& ((Content.reallyEmpty() && Global::Timer - m_timer > fetch_delay) || m_content_update_requested)
)
{
m_content_update_requested = false;
Content.clearSearchResults();
withUnfilteredMenuReapplyFilter(Content, [this]() {
size_t idx = 0;
Mpd.GetPlaylistContent(Playlists.current().value(), [this, &idx](MPD::Song s) {
if (idx < Content.size())
{
Content[idx].value() = s;
Content[idx].setBold(myPlaylist->checkForSong(s));
}
else
Content.addItem(s, myPlaylist->checkForSong(s));
++idx;
});
if (idx < Content.size())
Content.resizeList(idx);
std::string title;
if (Config.titles_visibility)
{
title = "Playlist content";
title += " (";
title += boost::lexical_cast<std::string>(Content.size());
title += " item";
if (Content.size() == 1)
title += ")";
else
title += "s)";
title.resize(Content.getWidth());
}
Content.setTitle(title);
});
Content.display();
}
if (isActiveWindow(Content) && Content.reallyEmpty())
{
Content.setHighlightColor(Config.main_highlight_color);
Playlists.setHighlightColor(Config.active_column_color);
w = &Playlists;
}
if (Playlists.empty() && Content.reallyEmpty())
{
Content.Window::clear();
Content.Window::display();
}
}
int PlaylistEditor::windowTimeout()
{
if (Content.reallyEmpty())
return pe_timeout;
else
return Screen<WindowType>::windowTimeout();
}
bool PlaylistEditor::isContentFiltered()
{
if (Content.isFiltered())
{
Statusbar::print("Function currently unavailable due to filtered playlist content");
return true;
}
return false;
}
ProxySongList PlaylistEditor::contentProxyList()
{
return ProxySongList(Content, [](NC::Menu<MPD::Song>::Item &item) {
return &item.value();
});
}
void PlaylistEditor::AddToPlaylist(bool add_n_play)
{
MPD::SongList list;
if (isActiveWindow(Playlists) && !Playlists.empty())
{
bool success;
withUnfilteredMenu(Content, [&]() {
success = addSongsToPlaylist(Content.beginV(), Content.endV(), add_n_play, -1);
});
Statusbar::printf("Playlist \"%1%\" loaded%2%",
Playlists.current().value(), withErrors(success)
);
}
else if (isActiveWindow(Content) && !Content.empty())
addSongToPlaylist(Content.current().value(), add_n_play);
if (!add_n_play)
w->scroll(NC::Scroll::Down);
}
void PlaylistEditor::enterPressed()
{
AddToPlaylist(true);
}
void PlaylistEditor::spacePressed()
{
if (Config.space_selects)
{
if (isActiveWindow(Playlists))
{
if (!Playlists.empty())
{
Playlists.current().setSelected(!Playlists.current().isSelected());
Playlists.scroll(NC::Scroll::Down);
}
}
else if (isActiveWindow(Content))
{
if (!Content.empty())
{
Content.current().setSelected(!Content.current().isSelected());
Content.scroll(NC::Scroll::Down);
}
}
}
else
AddToPlaylist(false);
}
void PlaylistEditor::mouseButtonPressed(MEVENT me)
{
if (!Playlists.empty() && Playlists.hasCoords(me.x, me.y))
{
if (!isActiveWindow(Playlists))
{
if (previousColumnAvailable())
previousColumn();
else
return;
}
if (size_t(me.y) < Playlists.size() && (me.bstate & (BUTTON1_PRESSED | BUTTON3_PRESSED)))
{
Playlists.Goto(me.y);
if (me.bstate & BUTTON3_PRESSED)
{
size_t pos = Playlists.choice();
spacePressed();
if (pos < Playlists.size()-1)
Playlists.scroll(NC::Scroll::Up);
}
}
else
Screen<WindowType>::mouseButtonPressed(me);
Content.clear();
}
else if (!Content.empty() && Content.hasCoords(me.x, me.y))
{
if (!isActiveWindow(Content))
{
if (nextColumnAvailable())
nextColumn();
else
return;
}
if (size_t(me.y) < Content.size() && (me.bstate & (BUTTON1_PRESSED | BUTTON3_PRESSED)))
{
Content.Goto(me.y);
if (me.bstate & BUTTON1_PRESSED)
{
size_t pos = Content.choice();
spacePressed();
if (pos < Content.size()-1)
Content.scroll(NC::Scroll::Up);
}
else
enterPressed();
}
else
Screen<WindowType>::mouseButtonPressed(me);
}
}
/***********************************************************************/
bool PlaylistEditor::allowsFiltering()
{
return true;
}
std::string PlaylistEditor::currentFilter()
{
std::string filter;
if (isActiveWindow(Playlists))
filter = RegexFilter<std::string>::currentFilter(Playlists);
else if (isActiveWindow(Content))
filter = RegexFilter<MPD::Song>::currentFilter(Content);
return filter;
}
void PlaylistEditor::applyFilter(const std::string &filter)
{
if (filter.empty())
{
if (isActiveWindow(Playlists))
{
Playlists.clearFilter();
Playlists.clearFilterResults();
}
else if (isActiveWindow(Content))
{
Content.clearFilter();
Content.clearFilterResults();
}
return;
}
try
{
if (isActiveWindow(Playlists))
{
Playlists.showAll();
auto rx = RegexFilter<std::string>(
boost::regex(filter, Config.regex_type), PlaylistEntryMatcher);
Playlists.filter(Playlists.begin(), Playlists.end(), rx);
}
else if (isActiveWindow(Content))
{
Content.showAll();
auto rx = RegexFilter<MPD::Song>(
boost::regex(filter, Config.regex_type), SongEntryMatcher);
Content.filter(Content.begin(), Content.end(), rx);
}
}
catch (boost::bad_expression &) { }
}
/***********************************************************************/
bool PlaylistEditor::allowsSearching()
{
return true;
}
bool PlaylistEditor::search(const std::string &constraint)
{
if (constraint.empty())
{
if (isActiveWindow(Playlists))
Playlists.clearSearchResults();
else if (isActiveWindow(Content))
Content.clearSearchResults();
return false;
}
try
{
bool result = false;
if (isActiveWindow(Playlists))
{
auto rx = RegexFilter<std::string>(
boost::regex(constraint, Config.regex_type), PlaylistEntryMatcher);
result = Playlists.search(Playlists.begin(), Playlists.end(), rx);
}
else if (isActiveWindow(Content))
{
auto rx = RegexFilter<MPD::Song>(
boost::regex(constraint, Config.regex_type), SongEntryMatcher);
result = Content.search(Content.begin(), Content.end(), rx);
}
return result;
}
catch (boost::bad_expression &)
{
return false;
}
}
void PlaylistEditor::nextFound(bool wrap)
{
if (isActiveWindow(Playlists))
Playlists.nextFound(wrap);
else if (isActiveWindow(Content))
Content.nextFound(wrap);
}
void PlaylistEditor::prevFound(bool wrap)
{
if (isActiveWindow(Playlists))
Playlists.prevFound(wrap);
else if (isActiveWindow(Content))
Content.prevFound(wrap);
}
/***********************************************************************/
ProxySongList PlaylistEditor::proxySongList()
{
auto ptr = ProxySongList();
if (isActiveWindow(Content))
ptr = contentProxyList();
return ptr;
}
bool PlaylistEditor::allowsSelection()
{
return true;
}
void PlaylistEditor::reverseSelection()
{
if (isActiveWindow(Playlists))
reverseSelectionHelper(Playlists.begin(), Playlists.end());
else if (isActiveWindow(Content))
reverseSelectionHelper(Content.begin(), Content.end());
}
MPD::SongList PlaylistEditor::getSelectedSongs()
{
MPD::SongList result;
if (isActiveWindow(Playlists))
{
bool any_selected = false;
for (auto &e : Playlists)
{
if (e.isSelected())
{
any_selected = true;
Mpd.GetPlaylistContent(e.value(), vectorMoveInserter(result));
}
}
// if no item is selected, add songs from right column
if (!any_selected && !Content.empty())
{
withUnfilteredMenu(Content, [this, &result]() {
result.insert(result.end(), Content.beginV(), Content.endV());
});
}
}
else if (isActiveWindow(Content))
{
for (auto &e : Content)
if (e.isSelected())
result.push_back(e.value());
// if no item is selected, add current one
if (result.empty() && !Content.empty())
result.push_back(Content.current().value());
}
return result;
}
/***********************************************************************/
bool PlaylistEditor::previousColumnAvailable()
{
if (isActiveWindow(Content))
{
if (!Playlists.reallyEmpty())
return true;
}
return false;
}
void PlaylistEditor::previousColumn()
{
if (isActiveWindow(Content))
{
Content.setHighlightColor(Config.main_highlight_color);
w->refresh();
w = &Playlists;
Playlists.setHighlightColor(Config.active_column_color);
}
}
bool PlaylistEditor::nextColumnAvailable()
{
if (isActiveWindow(Playlists))
{
if (!Content.reallyEmpty())
return true;
}
return false;
}
void PlaylistEditor::nextColumn()
{
if (isActiveWindow(Playlists))
{
Playlists.setHighlightColor(Config.main_highlight_color);
w->refresh();
w = &Content;
Content.setHighlightColor(Config.active_column_color);
}
}
/***********************************************************************/
void PlaylistEditor::updateTimer()
{
m_timer = Global::Timer;
}
void PlaylistEditor::Locate(const std::string &name)
{
update();
for (size_t i = 0; i < Playlists.size(); ++i)
{
if (name == Playlists[i].value())
{
Playlists.highlight(i);
Content.clear();
break;
}
}
switchTo();
}
namespace {//
std::string SongToString(const MPD::Song &s)
{
std::string result;
switch (Config.playlist_display_mode)
{
case DisplayMode::Classic:
result = s.toString(Config.song_list_format_dollar_free, Config.tags_separator);
break;
case DisplayMode::Columns:
result = s.toString(Config.song_in_columns_to_string_format, Config.tags_separator);
break;
}
return result;
}
bool PlaylistEntryMatcher(const boost::regex &rx, const std::string &playlist)
{
return boost::regex_search(playlist, rx);
}
bool SongEntryMatcher(const boost::regex &rx, const MPD::Song &s)
{
return boost::regex_search(SongToString(s), rx);
}
}