Add support for graphviz_filter module

Don't forget to check http://drupal.org/project/graphviz_styles too.

Darn .... it's not 7.x ready #762262: Plans for drupal 7 port?

This relates to #1217610: Add drush support to generate a dot file

By providing a views display mode to export only the dot file we can call the graphviz render function.

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This relates to #1344242: Graphviz output from a view?

As graphviz module has no D7 version we now just dump the dot formatted graphviz as a digraph.

The themer can override views-graphapi-style-graphviz-filter.tpl.php by calling the appropriate graphviz command.

I put this on fixed and hope graphviz_filter will #1389454: Integrate with graphapi module (D7)

@s.Daniel: thanks for you effort :)

I wish it was that simple. What we need to have is more of

function graphviz_graphapi_node_properties() {
  return array(
    'background-color' => 'Background Color',
    'shape' => 'Shape',
    'rank' => 'Rank',
  );
}

function graphviz_graphapi_link_properties() {
  return array(
    'title' => 'Title',
    'color' => 'Color',
  );
}

Next

function graphviz_to_dot($graph) {

must understand all those properties.

We want color right?

What do you think?

This now belongs to Graphviz module