spark values for minimum and maximum

[barcat.git] / barcat

diff --git a/barcat b/barcat
index 15a2269c9829079d81e0b86368e9a398e3d566f4..c5b7e0af73580e4a1015feed224d281dcdb9ef84 100755 (executable)
--- a/barcat
+++ b/barcat
@@ -50,10 +50,24 @@ GetOptions(\%opt,
                $opt{'graph-format'} = substr $_[1], 0, 1;
        },
        'spark:s' => sub {
                $opt{'graph-format'} = substr $_[1], 0, 1;
        },
        'spark:s' => sub {

-               $opt{spark} = [split //, $_[1] || '▁▂▃▄▅▆▇█'];
+               $opt{spark} = [split //, $_[1] || ' ▁▂▃▄▅▆▇█'];

        },
        },

-       'palette:s' => sub {
-               $opt{palette} = [ split /\s/, $_[1] ];
+       'palette=s' => sub {
+               $opt{palette} = {
+                       fire   => [qw( 90 31 91 33 93 97 96 )],
+                       fire88 => [map {"38;5;$_"} qw(
+                               80  32 48 64  68 72 76  77 78 79  47
+                       )],
+                       fire256=> [map {"38;5;$_"} qw(
+                               235  52 88 124 160 196
+                               202 208 214 220 226  227 228 229 230 231  159
+                       )],
+                       ramp88 => [map {"38;5;$_"} qw(
+                               64 65 66 67 51 35 39 23 22 26 25 28
+                       )],
+                       whites => [qw( 1;30 0;37 1;37 )],
+                       greys  => [map {"38;5;$_"} 52, 235..255, 47],
+               }->{$_[1]} // [ split /[^0-9;]/, $_[1] ];

        },
        'stat|s!',
        'signal-stat=s',
        },
        'stat|s!',
        'signal-stat=s',


@@ -87,7 +101,7 @@ GetOptions(\%opt,
        },
 ) or exit 64;  # EX_USAGE
 
        },
 ) or exit 64;  # EX_USAGE
 

-$opt{width} ||= $ENV{COLUMNS} || 80;
+$opt{width} ||= $ENV{COLUMNS} || qx(tput cols) || 80;

 $opt{color} //= -t *STDOUT;  # enable on tty
 $opt{'graph-format'} //= '-';
 $opt{trim}   *= $opt{width} / 100 if $opt{trimpct};
 $opt{color} //= -t *STDOUT;  # enable on tty
 $opt{'graph-format'} //= '-';
 $opt{trim}   *= $opt{width} / 100 if $opt{trimpct};


@@ -224,8 +238,13 @@ while ($nr <= $#lines) {
        my $rel = length $val && ($val - $minval) / ($maxval - $minval);
 
        if ($opt{spark}) {
        my $rel = length $val && ($val - $minval) / ($maxval - $minval);
 
        if ($opt{spark}) {

-               print color($opt{palette}->[ $rel * $#{$opt{palette}} ]) if $opt{palette};
-               print $opt{spark}->[ $rel * $#{$opt{spark}} ];
+               print $opt{spark}->[
+                       !$val ? 0 : # blank
+                       $val == $order[0] ? -1 : # max
+                       $val == $order[-1] ? 1 : # min
+                       $#{$opt{spark}} < 3 ? 1 :
+                       $rel * ($#{$opt{spark}} - 3) + 2.5
+               ];

                next;
        }
 
                next;
        }
 


@@ -396,7 +415,7 @@ Bars extend from 0 or the minimum value if lower,
 to the largest value encountered.
 These options can be set to customize this range.
 
 to the largest value encountered.
 These options can be set to customize this range.
 

-=item --palette=<color>...
+=item --palette=(<preset> | <color>...)

 
 Override colors of parsed numbers.
 Can be any CSI escape, such as I<90> for default dark grey,
 
 Override colors of parsed numbers.
 Can be any CSI escape, such as I<90> for default dark grey,