release 1.14pre0

[descalc.git] / 03_disp_slang.pm

diff --git a/04_disp_slang.pm b/03_disp_slang.pm
similarity index 52%
rename from 04_disp_slang.pm
rename to 03_disp_slang.pm
index 90dccf6340747c1f3d5dce4a47577a8133cefa89..6d8c62d8fe2acafbaaa10a2a7e7639b6e019749f 100644 (file)
--- a/04_disp_slang.pm
+++ b/03_disp_slang.pm
@@ -1,24 +1,31 @@
 # s-lang output for DCT, by Shiar
 
+# 1.13.0 200411042100 - menu i/o functions
+#                     - refresh hook renamed to showall
 # 1.12.0 200411032145 - define main loop
 #                     - use slang key reading functions
-# 1.11.0 200410291300 - 
+# 1.11.0 200410291300 - basic output using Term::Slang (ported from Curses)
 
 use strict;
 use warnings;
 
 use Term::Slang qw(:all);
 
+use vars qw(%falias $path);
+require $path."termcommon.pm";
+
 push @{$hook{init}}, sub {
        SLtt_get_terminfo and exit;
        SLang_init_tty(-1, 0, 1);
        SLsmg_init_smg;
+       SLtt_set_color(1, 0, 'black', 'lightgray');
        
        END { SLsmg_reset_smg; SLang_reset_tty; } # shutdown display system
 
        # where are $SLtt_Screen_Rows and $SLtt_Screen_Cols?
        ($set{height}, $set{width}) = SLtt_get_screen_size;
-       $set{height} -= 2;
+       $set{height} -= 3;
+       $set{menushow} = int($set{width}/(4+$set{width}/20))+1;  # menu items to show simultaneously
 }; # init
 
 push @{$hook{showerror}}, sub {
@@ -42,11 +49,46 @@ push @{$hook{showstack}}, sub {
        SLsmg_erase_eol;
 }; # showstack
 
-push @{$hook{refresh}}, sub {
+push @{$hook{showmenu}}, sub {
+       SLsmg_gotorc($set{height}+2, 1);
+       SLsmg_erase_eol;
+       my $nr = -1;
+       for (grep exists $menu[0][$_], $menu[0][0]+1..$menu[0][0]+$set{menushow}) {
+               $nr++;
+               next unless defined $menu[0][$_];
+               my $sub = (my $s = $menu[0][$_]) =~ s/>[\w ]+$//;
+               SLsmg_gotorc($set{height}+2, $set{width}/$set{menushow}*$nr);
+               SLsmg_write_string($_);
+               SLsmg_reverse_video; # reverse
+               SLsmg_write_string($s);
+               SLsmg_normal_video;
+               SLsmg_write_string('>') if $sub;  # indicate submenu
+       } # display menu txts
+}; # showmenu
+
+$action{more} = [-1, sub {
+       $menu[0][0] += $set{menushow};
+       $menu[0][0] = 0 if $menu[0][0] > @{$menu[0]};
+       $_->() for @{$hook{showmenu}};
+}]; # tab
+
+unshift @{$hook{precmd}}, sub {
+       exists $falias{$_} or return;  # handle function key
+       if ($falias{$_}==0) {
+               shift @menu if @menu>1;  # remove current submenu
+               redraw(menu=>1);
+               return 1;
+       } # escape (go to parent)
+       $_ = $menu[0][$falias{$_}] and return;  # execute found menu item instead
+       error("no such menu entry");
+       return 1;
+}; # precmd
+
+push @{$hook{showall}}, sub {
        SLsmg_cls;
        SLsmg_gotorc($set{height}+1, 0);
        SLsmg_write_string("> ");  # prompt
-}; # refresh
+}; # showall
 
 push @{$hook{showentry}}, sub {
        SLsmg_gotorc($set{height}+1, 2);
@@ -71,6 +113,6 @@ $hook{main} = sub {
 return {
        author  => "Shiar",
        title   => "slang output",
-       version => "1.12",
+       version => "1.13",
 };