Hello,

I am using Graph::Easy to render a link graph as boxart. Works very well, except when I am using the boxart in a browser and the nodes are containing html markup.

The problem arises as Graph::Easy usually handles only textual node labels. Now adding, as I do, HTML and smuggling in a href, the result is a discrepancy in length between the textual representation and the length of the label string (which Graph::Easy uses to compute the node-box dimensions.

The dirty hack I use to get around this is supplying Graph::Easy with two different strings, depending on the state of its layout processing - by overriding Graph::Easy::Node::dimensions: 
# compensate discrepancy between textual length and rendered-html leng
+th
sub Graph::Easy::Node::dimensions
  {
  # Returns the minimum dimensions of the node/cell derived from the
  # label or name, in characters.
  my $self = shift;

  use HTML::Strip;
  my $hs = HTML::Strip->new();

  my $align = $self->attribute('align');
  my ($lines,$aligns) = $self->_aligned_label($align);

  my $w = 0; my $h = scalar @$lines;
  foreach my $line (@$lines){
        $line = $hs->parse($line);
#       $line =~ s/\s+/ /g;
        $w = length($line); # if length($line) > $w;
  }

  ($w,$h);
}

[download]


The problem now is that Graph::Easy still thinks the label is wider and leaves the box open, as this: 
┌─────────────────────────┐  aaaaa bbbbbb ccccccc   ┌──────────────────────┐
│ xxxxxxxxxxxxxxxxxxxxxxx │ ──────────────────────> │ xxxxxxxxxxxxxxxxxxx
└─────────────────────────┘                         └──────────────────────┘

Anyone inclined to look into Graph::Easy for me as I am incapable of figuring it out any better.

In reply to Help with HTML-izing Graph::Easy by isync

Title:
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