libsmartcols/samples/title.c

   1 /*
   2  * Copyright (C) 2010-2014 Karel Zak <kzak@redhat.com>
   3  *
   4  * This file may be redistributed under the terms of the
   5  * GNU Lesser General Public License.
   6  */
   7 #include <stdlib.h>
   8 #include <unistd.h>
   9 #include <string.h>
  10 #include <errno.h>
  11 #include <sys/types.h>
  12 #include <sys/stat.h>
  13 #include <dirent.h>
  14 #include <getopt.h>
  15
  16 #include "c.h"
  17 #include "nls.h"
  18 #include "strutils.h"
  19 #include "xalloc.h"
  20
  21 #include "libsmartcols.h"
  22
  23
  24 enum { COL_NAME, COL_DATA };
  25
  26 /* add columns to the @tb */
  27 static void setup_columns(struct libscols_table *tb)
  28 {
  29         if (!scols_table_new_column(tb, "NAME", 0, 0))
  30                 goto fail;
  31         if (!scols_table_new_column(tb, "DATA", 0, 0))
  32                 goto fail;
  33         return;
  34 fail:
  35         scols_unref_table(tb);
  36         err(EXIT_FAILURE, "faild to create output columns");
  37 }
  38
  39 static void add_line(struct libscols_table *tb, const char *name, const char *data)
  40 {
  41         struct libscols_line *ln = scols_table_new_line(tb, NULL);
  42         if (!ln)
  43                 err(EXIT_FAILURE, "failed to create output line");
  44
  45         if (scols_line_set_data(ln, COL_NAME, name))
  46                 goto fail;
  47         if (scols_line_set_data(ln, COL_DATA, data))
  48                 goto fail;
  49         return;
  50 fail:
  51         scols_unref_table(tb);
  52         err(EXIT_FAILURE, "faild to create output line");
  53 }
  54
  55 int main(int argc, char *argv[])
  56 {
  57         struct libscols_table *tb;
  58         struct libscols_symbols *sy;
  59         struct libscols_cell *title;
  60
  61         setlocale(LC_ALL, "");  /* just to have enable UTF8 chars */
  62
  63         scols_init_debug(0);
  64
  65         tb = scols_new_table();
  66         if (!tb)
  67                 err(EXIT_FAILURE, "faild to create output table");
  68
  69         scols_table_enable_colors(tb, 1);
  70         setup_columns(tb);
  71         add_line(tb, "foo", "bla bla bla");
  72         add_line(tb, "bar", "alb alb alb");
  73
  74         title = scols_table_get_title(tb);
  75
  76         /* right */
  77         scols_cell_set_data(title, "This is right title");
  78         scols_cell_set_color(title, "red");
  79         scols_cell_set_flags(title, SCOLS_CELL_FL_RIGHT);
  80         scols_print_table(tb);
  81
  82         /* center */
  83         sy = scols_new_symbols();
  84         if (!sy)
  85                 err_oom();
  86         scols_table_set_symbols(tb, sy);
  87
  88         scols_symbols_set_title_padding(sy, "=");
  89         scols_cell_set_data(title, "This is center title (with padding)");
  90         scols_cell_set_color(title, "green");
  91         scols_cell_set_flags(title, SCOLS_CELL_FL_CENTER);
  92         scols_print_table(tb);
  93
  94         /* left */
  95         scols_symbols_set_title_padding(sy, "-");
  96         scols_cell_set_data(title, "This is left title (with padding)");
  97         scols_cell_set_color(title, "blue");
  98         scols_cell_set_flags(title, SCOLS_CELL_FL_LEFT);
  99         scols_print_table(tb);
 100
 101         scols_unref_table(tb);
 102         return EXIT_SUCCESS;
 103 }