30 |
} |
} |
31 |
close($ps); |
close($ps); |
32 |
|
|
33 |
|
$data .= "\n--EOF--"; |
34 |
|
|
35 |
my $scr; |
my $scr; |
36 |
|
|
37 |
# leave sane terminal if script dies |
# leave sane terminal if script dies |
42 |
|
|
43 |
my @lines = split(/\n/, $data); |
my @lines = split(/\n/, $data); |
44 |
|
|
45 |
my $o = 0; # offset in original text |
my $top_screen_line = 0; # offset in original text |
46 |
my $pos = 0; |
my $pos = 0; |
47 |
|
|
48 |
# default: select first line |
# default: select first line |
91 |
|
|
92 |
sub redraw { |
sub redraw { |
93 |
for my $l (0 .. $scr->rows - 3) { |
for my $l (0 .. $scr->rows - 3) { |
94 |
my $line = $lines[ $l + $o ]; |
my $line = $lines[ $l + $top_screen_line ]; |
|
next if (length($line) < 2); |
|
95 |
redraw_line( $l, $line ); |
redraw_line( $l, $line ); |
96 |
last if ($l == $#lines); |
last if ($l == $#lines); |
97 |
} |
} |
112 |
sub selected { |
sub selected { |
113 |
my $d = shift || 0; |
my $d = shift || 0; |
114 |
|
|
115 |
my $screen_line = $pos - $o; |
my $screen_line = $pos - $top_screen_line; |
116 |
|
|
117 |
redraw_line( $screen_line, $lines[$pos] ); |
redraw_line( $screen_line, $lines[$pos] ); |
118 |
|
|
120 |
|
|
121 |
if ( $d < 0 && $screen_line == 0 ) { |
if ( $d < 0 && $screen_line == 0 ) { |
122 |
if ( $pos > 0 ) { |
if ( $pos > 0 ) { |
123 |
$o--; |
$top_screen_line--; |
124 |
$pos--; |
$pos--; |
125 |
} else { |
} else { |
126 |
$error_text = "Already at Begin."; |
$error_text = "Already at Begin."; |
128 |
redraw; |
redraw; |
129 |
} elsif ( $d > 0 && $screen_line == $last_screen_line ) { |
} elsif ( $d > 0 && $screen_line == $last_screen_line ) { |
130 |
if ( $pos <= $#lines ) { |
if ( $pos <= $#lines ) { |
131 |
$o++; |
$top_screen_line++; |
132 |
$pos++; |
$pos++; |
133 |
} else { |
} else { |
134 |
$error_text = "Already at End."; |
$error_text = "Already at End."; |
140 |
|
|
141 |
my $line = $lines[$pos]; |
my $line = $lines[$pos]; |
142 |
if ( defined $selectable_line->{ $pos } ) { |
if ( defined $selectable_line->{ $pos } ) { |
143 |
$scr->at($pos - $o,0)->reverse->bold()->puts( full_line( chunk($line) ) )->normal(); |
$scr->at($pos - $top_screen_line,0)->reverse->bold()->puts( full_line( chunk($line) ) )->normal(); |
144 |
$sel_pos = $pos; |
$sel_pos = $pos; |
145 |
} else { |
} else { |
146 |
$scr->at($pos - $o,0)->reverse->puts( full_line( chunk($line) ) ); |
$scr->at($pos - $top_screen_line,0)->reverse->puts( full_line( chunk($line) ) ); |
147 |
$sel_pos = -1; |
$sel_pos = -1; |
148 |
} |
} |
149 |
status; |
status; |
158 |
|
|
159 |
$error_text = ""; |
$error_text = ""; |
160 |
|
|
161 |
|
my $lines_on_screen = $scr->rows - 3; |
162 |
|
|
163 |
if ($key eq 'ku') { |
if ($key eq 'ku') { |
164 |
selected( -1 ); |
selected( -1 ); |
165 |
} elsif ($key eq 'kd') { |
} elsif ($key eq 'kd') { |
166 |
selected( +1 ); |
selected( +1 ); |
167 |
|
} elsif ($key eq 'pgup' ) { |
168 |
|
# first line on screen? |
169 |
|
if ( $pos == $top_screen_line ) { |
170 |
|
$top_screen_line -= $lines_on_screen; |
171 |
|
$top_screen_line = 0; |
172 |
|
$pos = $top_screen_line; |
173 |
|
redraw; |
174 |
|
selected( $pos ); |
175 |
|
} else { |
176 |
|
selected( -( $pos - $top_screen_line ) ); |
177 |
|
} |
178 |
|
} elsif ($key eq 'pgdn' ) { |
179 |
|
# last line on screen? |
180 |
|
if ( $pos - $top_screen_line == $lines_on_screen ) { |
181 |
|
$top_screen_line += $lines_on_screen; |
182 |
|
$top_screen_line = $#lines - $lines_on_screen if $top_screen_line > $#lines - $lines_on_screen; |
183 |
|
$pos = $top_screen_line; |
184 |
|
redraw; |
185 |
|
selected( $pos ); |
186 |
|
} else { |
187 |
|
selected( $top_screen_line + $scr->rows - $pos - 3 ); |
188 |
|
} |
189 |
} |
} |
190 |
|
|
191 |
$status_text = sprintf("pos: %-3d sel_pos: %-3d top offset: %-3d", $pos, $sel_pos, $o ); |
$status_text = sprintf("pos: %-3d sel_pos: %-3d top_screen_line: %-3d", $pos, $sel_pos, $top_screen_line ); |
192 |
if ( length($key) > 1 ) { |
if ( length($key) > 1 ) { |
193 |
$status_text .= " key: $key"; |
$status_text .= " key: $key"; |
194 |
} else { |
} else { |