src/statusbar.h

   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 #ifndef NCMPCPP_STATUSBAR_H
  22 #define NCMPCPP_STATUSBAR_H
  23
  24 #include <boost/format.hpp>
  25 #include "settings.h"
  26 #include "gcc.h"
  27 #include "interfaces.h"
  28 #include "window.h"
  29
  30 namespace Progressbar {
  31
  32 struct ScopedLock
  33 {
  34         ScopedLock() noexcept;
  35         ~ScopedLock() noexcept;
  36 };
  37
  38 /// @return true if progressbar is unlocked
  39 bool isUnlocked();
  40
  41 /// draws progressbar
  42 void draw(unsigned elapsed, unsigned time);
  43
  44 }
  45
  46 namespace Statusbar {
  47
  48 struct ScopedLock
  49 {
  50         ScopedLock() noexcept;
  51         ~ScopedLock() noexcept;
  52 };
  53
  54 /// @return true if statusbar is unlocked
  55 bool isUnlocked();
  56
  57 /// tries to clear current message put there using Statusbar::printf if there is any
  58 void tryRedraw();
  59
  60 /// clears statusbar and move cursor to beginning of line
  61 /// @return window object that represents statusbar
  62 NC::Window &put();
  63
  64 namespace Helpers {
  65
  66 /// called when statusbar window detects incoming idle notification
  67 void mpd();
  68
  69 /// called each time user types another character while inside Window::getString
  70 bool mainHook(const char *);
  71
  72 /// prompt and return one of the strings specified in the vector
  73 std::string promptReturnOneOf(std::vector<std::string> values);
  74
  75 struct ImmediatelyReturnOneOf
  76 {
  77         ImmediatelyReturnOneOf(std::vector<std::string> arg)
  78         : m_values(std::move(arg))
  79         { }
  80
  81         bool operator()(const char *s) const;
  82
  83         template <typename StringT>
  84         bool isOneOf(StringT &&s) const {
  85                 return std::find(m_values.begin(), m_values.end(), std::forward<StringT>(s)) != m_values.end();
  86         }
  87
  88 private:
  89         std::vector<std::string> m_values;
  90 };
  91
  92 struct FindImmediately
  93 {
  94         FindImmediately(Searchable *w, SearchDirection direction)
  95         : m_w(w), m_direction(direction), m_found(true)
  96         { }
  97
  98         bool operator()(const char *s);
  99
 100 private:
 101         Searchable *m_w;
 102         const SearchDirection m_direction;
 103         std::string m_s;
 104         bool m_found;
 105 };
 106
 107 struct TryExecuteImmediateCommand
 108 {
 109         bool operator()(const char *s);
 110
 111 private:
 112         std::string m_s;
 113 };
 114
 115 }
 116
 117 /// displays message in statusbar for a given period of time
 118 void print(int delay, const std::string& message);
 119
 120 /// displays message in statusbar for period of time set in configuration file
 121 inline void print(const std::string &message)
 122 {
 123         print(Config.message_delay_time, message);
 124 }
 125
 126 /// displays formatted message in statusbar for period of time set in configuration file
 127 template <typename FormatT>
 128 void printf(FormatT &&fmt)
 129 {
 130         print(Config.message_delay_time, boost::format(std::forward<FormatT>(fmt)).str());
 131 }
 132 template <typename FormatT, typename ArgT, typename... Args>
 133 void printf(FormatT &&fmt, ArgT &&arg, Args&&... args)
 134 {
 135         printf(boost::format(std::forward<FormatT>(fmt)) % std::forward<ArgT>(arg),
 136                 std::forward<Args>(args)...
 137         );
 138 }
 139
 140 /// displays formatted message in statusbar for a given period of time
 141 template <typename FormatT>
 142 void printf(int delay, FormatT &&fmt)
 143 {
 144         print(delay, boost::format(std::forward<FormatT>(fmt)).str());
 145 }
 146 template <typename FormatT, typename ArgT, typename... Args>
 147 void printf(int delay, FormatT &&fmt, ArgT &&arg, Args&&... args)
 148 {
 149         printf(delay, boost::format(std::forward<FormatT>(fmt)) % std::forward<ArgT>(arg),
 150                 std::forward<Args>(args)...
 151         );
 152 }
 153
 154 }
 155
 156 #endif // NCMPCPP_STATUSBAR_H