src/Footer.cpp

   1 // Copyright (C) 2011-2015 Petr Pavlu <setup@dagobah.cz>
   2 //
   3 // This file is part of CenterIM.
   4 //
   5 // CenterIM 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 // CenterIM 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 CenterIM.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 #include "Footer.h"
  19
  20 #include <cppconsui/KeyConfig.h>
  21 #include <cstring>
  22 #include <string>
  23
  24 Footer *Footer::my_instance_ = nullptr;
  25
  26 Footer *Footer::instance()
  27 {
  28   return my_instance_;
  29 }
  30
  31 void Footer::onScreenResized()
  32 {
  33   moveResizeRect(CENTERIM->getScreenArea(CenterIM::FOOTER_AREA));
  34 }
  35
  36 void Footer::setText(const char *fmt, ...)
  37 {
  38   values_.clear();
  39
  40   if (fmt == nullptr) {
  41     updateText();
  42     return;
  43   }
  44
  45   values_.push_back(std::string(fmt));
  46
  47   va_list args;
  48   va_start(args, fmt);
  49   while (*fmt != '\0') {
  50     if (*fmt == '%') {
  51       if (*(fmt + 1) == '%')
  52         ++fmt;
  53       else if (*(fmt + 1) == 's') {
  54         const char *v = va_arg(args, const char *);
  55         values_.push_back(std::string(v));
  56         ++fmt;
  57       }
  58     }
  59     ++fmt;
  60   }
  61   va_end(args);
  62
  63   updateText();
  64 }
  65
  66 Footer::Footer() : Window(0, 24, 80, 1, TYPE_NON_FOCUSABLE, false)
  67 {
  68   setColorScheme(CenterIM::SCHEME_FOOTER);
  69
  70   label_ = new CppConsUI::Label;
  71   addWidget(*label_, 0, 0);
  72
  73   onScreenResized();
  74 }
  75
  76 void Footer::init()
  77 {
  78   g_assert(my_instance_ == nullptr);
  79
  80   my_instance_ = new Footer;
  81   my_instance_->show();
  82 }
  83
  84 void Footer::finalize()
  85 {
  86   g_assert(my_instance_ != nullptr);
  87
  88   delete my_instance_;
  89   my_instance_ = nullptr;
  90 }
  91
  92 void Footer::updateText()
  93 {
  94   if (values_.empty()) {
  95     label_->setText(nullptr);
  96     return;
  97   }
  98
  99   Values::iterator i = values_.begin();
 100   const char *fmt = i->c_str();
 101   ++i;
 102
 103   char out[1024];
 104   char *cur_out = out;
 105
 106   while (*fmt != '\0' && cur_out < out + sizeof(out) - 1) {
 107     if (*fmt == '%') {
 108       if (*(fmt + 1) == '%')
 109         ++fmt;
 110       else if (*(fmt + 1) == 's') {
 111         char *con = g_strdup(i->c_str());
 112         ++i;
 113         char *act = std::strstr(con, "|");
 114         g_assert(act);
 115         *act++ = '\0';
 116         const char *key = KEYCONFIG->getKeyBind(con, act);
 117         g_free(con);
 118
 119         std::strncpy(cur_out, key, out + sizeof(out) - 1 - cur_out);
 120         cur_out += std::strlen(key);
 121
 122         fmt += 2;
 123         continue;
 124       }
 125     }
 126     *cur_out++ = *fmt++;
 127   }
 128   *cur_out = '\0';
 129
 130   label_->setText(out);
 131 }
 132
 133 // vim: set tabstop=2 shiftwidth=2 textwidth=80 expandtab: