repeating_shape documentation.

This glyph is a generic superclass for drawing the same shape repeatedly. In addition to the common options, the following glyph-specific
options are recognized:

  Option      Description                  Default
  ------      -----------                  -------

  -width      Width of one tooth            10

  -interval   Interval between teeth        10

sub draw_component {

  my $self = shift;
  my $gd = shift;
  my $fg = $self->fgcolor;
  
  my $width = defined $self->option('width') ? $self->option('width') : $self->default_width;
  my $interval = defined $self->option('interval') ? $self->option('interval') : $self->default_interval;

  # find the center and vertices
  my ($x1,$y1,$x2,$y2) = $self->calculate_boundaries(@_);
  
  my $bWidth = $x2-$x1;
  
  if ($bWidth < $width)
  {
    $self->draw_repeating_shape($gd,$x1,$y1,$x2,$y2,$fg);
    return;
  }
  
  if ($bWidth < $width+2*$interval)
  {
    my $leftoverInterval = $bWidth - $width;
    my $halfInt = $leftoverInterval/2;
    $halfInt = 0 unless $interval;
    
    $gd->line($x1,$y2,$x1+$halfInt,$y2,$fg);
    $self->draw_repeating_shape($gd,$x1+$halfInt,$y1,$x2-$halfInt,$y2,$fg);
    $gd->line($x2-$halfInt,$y2,$x2,$y2,$fg);
    return;
  }
  
  my $count = int ($bWidth / ($width+$interval));
  my $leftoverInterval = $bWidth % ($width+$interval)+$interval;
  
  my $halfInt = $leftoverInterval/2;
  $halfInt = 0 unless $interval;
  $gd->line($x1,$y2,$x1+$halfInt,$y2,$fg);
  foreach (my $i=1; $i<=$count; $i++)
  {
    my $shapeStart = $x1 + $halfInt + ($i-1)*($width+$interval);
    $self->draw_repeating_shape($gd,$shapeStart,$y1,$shapeStart+$width,$y2,$fg);
    if ($i < $count)
    {
      $gd->line($shapeStart+$width,$y2,$shapeStart+$width+$interval,$y2,$fg);  
    }
  }
  $gd->line($x2-$halfInt,$y2,$x2,$y2,$fg);

}

default_width	No description	Code
default_interval	No description	Code
draw_component	No description	Code
draw_repeating_shape	No description	Code