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Member "fdupes-2.1.2/ncurses-status.c" (12 Aug 2020, 3706 Bytes) of package /linux/privat/fdupes-2.1.2.tar.gz:


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    1 /* FDUPES Copyright (c) 2018 Adrian Lopez
    2 
    3    Permission is hereby granted, free of charge, to any person
    4    obtaining a copy of this software and associated documentation files
    5    (the "Software"), to deal in the Software without restriction,
    6    including without limitation the rights to use, copy, modify, merge,
    7    publish, distribute, sublicense, and/or sell copies of the Software,
    8    and to permit persons to whom the Software is furnished to do so,
    9    subject to the following conditions:
   10 
   11    The above copyright notice and this permission notice shall be
   12    included in all copies or substantial portions of the Software.
   13 
   14    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 
   15    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 
   16    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
   17    IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 
   18    CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 
   19    TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 
   20    SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
   21 
   22 #include "config.h"
   23 #include <stdlib.h>
   24 #include "ncurses-print.h"
   25 #include "ncurses-status.h"
   26 
   27 struct status_text *status_text_alloc(struct status_text *status, size_t width)
   28 {
   29   struct status_text *result;
   30   wchar_t *newleft;
   31   wchar_t *newright;
   32 
   33   if (status == 0)
   34   {
   35     result = (struct status_text*) malloc(sizeof(struct status_text));
   36     if (result == 0)
   37       return 0;
   38 
   39     result->left = (wchar_t*) malloc((width+1) * sizeof(wchar_t));
   40     if (result->left == 0)
   41     {
   42       free(result);
   43       return 0;
   44     }
   45 
   46     result->right = (wchar_t*) malloc((width+1) * sizeof(wchar_t));
   47     if (result->right == 0)
   48     {
   49       free(result->left);
   50       free(result);
   51       return 0;
   52     }
   53 
   54     result->left[0] = '\0';
   55     result->right[0] = '\0';
   56 
   57     result->width = width;
   58   }
   59   else
   60   {
   61     if (status->width >= width)
   62       return status;
   63 
   64     newleft = (wchar_t*) realloc(status->left, (width+1) * sizeof(wchar_t));
   65     if (newleft == 0)
   66       return 0;
   67 
   68     newright = (wchar_t*) realloc(status->right, (width+1) * sizeof(wchar_t));
   69     if (newright == 0)
   70     {
   71       free(newleft);
   72       return 0;
   73     }
   74 
   75     result = status;
   76     result->left = newleft;
   77     result->right = newright;
   78     result->width = width;
   79   }
   80 
   81   return result;
   82 }
   83 
   84 void free_status_text(struct status_text *status)
   85 {
   86   free(status->left);
   87   free(status->right);
   88   free(status);
   89 }
   90 
   91 void format_status_left(struct status_text *status, wchar_t *format, ...)
   92 {
   93   va_list ap;
   94   va_list aq;
   95   int size;
   96 
   97   va_start(ap, format);
   98   va_copy(aq, ap);
   99 
  100   size = vwprintflength(format, aq);
  101 
  102   status_text_alloc(status, size);
  103 
  104   vswprintf(status->left, status->width + 1, format, ap);
  105 
  106   va_end(aq);
  107   va_end(ap);
  108 }
  109 
  110 void format_status_right(struct status_text *status, wchar_t *format, ...)
  111 {
  112   va_list ap;
  113   va_list aq;
  114   int size;
  115 
  116   va_start(ap, format);
  117   va_copy(aq, ap);
  118 
  119   size = vwprintflength(format, aq);
  120 
  121   status_text_alloc(status, size);
  122 
  123   vswprintf(status->right, status->width + 1, format, ap);
  124 
  125   va_end(aq);
  126   va_end(ap);
  127 }
  128 
  129 void print_status(WINDOW *statuswin, struct status_text *status)
  130 {
  131   wchar_t *text;
  132   size_t cols;
  133   size_t x;
  134   size_t l;
  135 
  136   cols = getmaxx(statuswin);
  137 
  138   text = (wchar_t*)malloc((cols + 1) * sizeof(wchar_t));
  139 
  140   l = wcslen(status->left);
  141   for (x = 0; x < l && x < cols; ++x)
  142     text[x] = status->left[x];
  143   for (x = l; x < cols; ++x)
  144     text[x] = L' ';
  145 
  146   l = wcslen(status->right);
  147   for (x = cols; x >= 1 && l >= 1; --x, --l)
  148     text[x - 1] = status->right[l - 1];
  149 
  150   text[cols] = L'\0';
  151 
  152   mvwaddnwstr(statuswin, 0, 0, text, wcslen(text));
  153 
  154   free(text);
  155 }