src/statusbar.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2008-2014 by Andrzej Rybczak                            *
   3  *   electricityispower@gmail.com                                          *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.              *
  19  ***************************************************************************/
  20
  21 #include "global.h"
  22 #include "settings.h"
  23 #include "status.h"
  24 #include "statusbar.h"
  25 #include "bindings.h"
  26 #include "playlist.h"
  27 #include "utility/wide_string.h"
  28
  29 using Global::wFooter;
  30
  31 namespace {//
  32
  33 boost::posix_time::ptime statusbarLockTime;
  34 boost::posix_time::seconds statusbarLockDelay(-1);
  35
  36 bool statusbarBlockUpdate = false;
  37 bool progressbarBlockUpdate = false;
  38 bool statusbarAllowUnlock = true;
  39
  40 }
  41
  42 void Progressbar::lock()
  43 {
  44         progressbarBlockUpdate = true;
  45 }
  46
  47 void Progressbar::unlock()
  48 {
  49         progressbarBlockUpdate = false;
  50 }
  51
  52 bool Progressbar::isUnlocked()
  53 {
  54         return !progressbarBlockUpdate;
  55 }
  56
  57 void Progressbar::draw(unsigned int elapsed, unsigned int time)
  58 {
  59         unsigned pb_width = wFooter->getWidth();
  60         unsigned howlong = time ? pb_width*elapsed/time : 0;
  61         if (Config.progressbar_boldness)
  62                 *wFooter << NC::Format::Bold;
  63         *wFooter << Config.progressbar_color;
  64         if (Config.progressbar[2] != '\0')
  65         {
  66                 wFooter->goToXY(0, 0);
  67                 for (unsigned i = 0; i < pb_width; ++i)
  68                         *wFooter << Config.progressbar[2];
  69                 wFooter->goToXY(0, 0);
  70         }
  71         else
  72                 mvwhline(wFooter->raw(), 0, 0, 0, pb_width);
  73         if (time)
  74         {
  75                 *wFooter << Config.progressbar_elapsed_color;
  76                 pb_width = std::min(size_t(howlong), wFooter->getWidth());
  77                 for (unsigned i = 0; i < pb_width; ++i)
  78                         *wFooter << Config.progressbar[0];
  79                 if (howlong < wFooter->getWidth())
  80                         *wFooter << Config.progressbar[1];
  81                 *wFooter << NC::Color::End;
  82         }
  83         *wFooter << NC::Color::End;
  84         if (Config.progressbar_boldness)
  85                 *wFooter << NC::Format::NoBold;
  86 }
  87
  88 void Statusbar::lock()
  89 {
  90         if (Config.statusbar_visibility)
  91                 statusbarBlockUpdate = true;
  92         else
  93                 progressbarBlockUpdate = true;
  94         statusbarAllowUnlock = false;
  95 }
  96
  97 void Statusbar::unlock()
  98 {
  99         statusbarAllowUnlock = true;
 100         if (statusbarLockDelay.is_negative())
 101         {
 102                 if (Config.statusbar_visibility)
 103                         statusbarBlockUpdate = false;
 104                 else
 105                         progressbarBlockUpdate = false;
 106         }
 107         if (Status::State::player() == MPD::psStop)
 108         {
 109                 switch (Config.design)
 110                 {
 111                         case Design::Classic:
 112                                 put() << wclrtoeol;
 113                                 break;
 114                         case Design::Alternative:
 115                                 Progressbar::draw(Status::State::elapsedTime(), Status::State::totalTime());
 116                                 break;
 117                 }
 118                 wFooter->refresh();
 119         }
 120 }
 121
 122 bool Statusbar::isUnlocked()
 123 {
 124         return !statusbarBlockUpdate;
 125 }
 126
 127 void Statusbar::tryRedraw()
 128 {
 129         using Global::Timer;
 130         if (statusbarLockDelay > boost::posix_time::seconds(0)
 131         &&  Timer - statusbarLockTime > statusbarLockDelay)
 132         {
 133                 statusbarLockDelay = boost::posix_time::seconds(-1);
 134
 135                 if (Config.statusbar_visibility)
 136                         statusbarBlockUpdate = !statusbarAllowUnlock;
 137                 else
 138                         progressbarBlockUpdate = !statusbarAllowUnlock;
 139
 140                 if (Status::State::player() != MPD::psStop && !statusbarBlockUpdate && !progressbarBlockUpdate)
 141                 {
 142                         switch (Config.design)
 143                         {
 144                                 case Design::Classic:
 145                                         Status::Changes::elapsedTime(false);
 146                                         break;
 147                                 case Design::Alternative:
 148                                         Progressbar::draw(Status::State::elapsedTime(), Status::State::totalTime());
 149                                         break;
 150                         }
 151                         wFooter->refresh();
 152                 }
 153         }
 154 }
 155
 156 NC::Window &Statusbar::put()
 157 {
 158         *wFooter << NC::XY(0, Config.statusbar_visibility ? 1 : 0) << wclrtoeol;
 159         return *wFooter;
 160 }
 161
 162 void Statusbar::print(int delay, const std::string &message)
 163 {
 164         if (statusbarAllowUnlock)
 165         {
 166                 statusbarLockTime = Global::Timer;
 167                 statusbarLockDelay = boost::posix_time::seconds(delay);
 168                 if (Config.statusbar_visibility)
 169                         statusbarBlockUpdate = true;
 170                 else
 171                         progressbarBlockUpdate = true;
 172                 wFooter->goToXY(0, Config.statusbar_visibility);
 173                 *wFooter << message << wclrtoeol;
 174                 wFooter->refresh();
 175         }
 176 }
 177
 178 void Statusbar::Helpers::mpd()
 179 {
 180         Status::update(Mpd.noidle());
 181 }
 182
 183 bool Statusbar::Helpers::getString(const char *)
 184 {
 185         Status::trace();
 186         return true;
 187 }
 188
 189 bool Statusbar::Helpers::ApplyFilterImmediately::operator()(const char *s)
 190 {
 191         using Global::myScreen;
 192         // if input queue is not empty, we don't want to update filter since next
 193         // character will be taken from queue immediately, trigering this function
 194         // again and thus making it inefficient, so let's apply filter only if
 195         // "real" user input arrived. however, we want to apply filter if ENTER
 196         // is next in queue, so its effects will be seen.
 197         if (wFooter->inputQueue().empty() || wFooter->inputQueue().front() == KEY_ENTER)
 198         {
 199                 if (m_s != s)
 200                 {
 201                         m_s = s;
 202                         m_f->applyFilter(m_s);
 203                         myScreen->refreshWindow();
 204                 }
 205                 Status::trace();
 206         }
 207         return true;
 208 }
 209
 210 bool Statusbar::Helpers::TryExecuteImmediateCommand::operator()(const char *s)
 211 {
 212         bool continue_ = true;
 213         if (m_s != s)
 214         {
 215                 m_s = s;
 216                 auto cmd = Bindings.findCommand(m_s);
 217                 if (cmd && cmd->immediate())
 218                         continue_ = false;
 219         }
 220         Status::trace();
 221         return continue_;
 222 }