Initial commit of OpenSPARC T2 design and verification files.

[OpenSPARC-T2-DV] / tools / perl-5.8.0 / lib / site_perl / 5.8.0 / sun4-solaris / Tk / demos / widget_lib / vscale.pl

# vscale.pl

use subs qw/vscale_height/;
use vars qw/$TOP/;

sub vscale {

   # Create a top-level window that displays a vertical scale.

   my($demo) = @_;
   $TOP = $MW->WidgetDemo(
       -name     => $demo,
       -text     => 'An arrow and a vertical scale are displayed below.  If you click or drag mouse button 1 in the scale, you can change the size of the arrow.',
       -title    => 'Vertical Scale Demonstration',
       -iconname => 'vscale',
   );

   my $frame = $TOP->Frame(-borderwidth => 10)->pack;

   my $canvas = $frame->Canvas(
       qw/-width 50 -height 50 -borderwidth 0 -highlightthickness 0/);
   $canvas->create(qw/polygon 0 0 1 1 2 2 -fill SeaGreen3 -tags poly/);
   $canvas->create(qw/line 0 0 1 1 2 2 0 0 -fill black -tags line/);

   my $scale = $frame->Scale(qw/-orient vertical -length 284 -from 0 
       -to 250 -tickinterval 50 -command/ => [\&vscale_height, $canvas]);
   $scale->set(75);

   $scale->pack(qw/-side left -anchor ne/);
   $canvas->pack(qw/-side left -anchor nw -fill y/)

} # end vscale

sub vscale_height {

   my($w, $height) = @_;

   $height += 21;
   my $y2 = $height - 30;
   $y2 = 21 if $y2 < 21;
   $w->coords('poly', 15, 20, 35, 20, 35, $y2, 45, $y2, 25, $height, 5, $y2,
              15, $y2, 15, 20);
   $w->coords('line', 15, 20, 35, 20, 35, $y2, 45, $y2, 25, $height, 5, $y2,
              15, $y2, 15, 20);

} # end vscale_height

1;