diff options
Diffstat (limited to 'lib/rdoc/diagram.rb')
| -rw-r--r-- | lib/rdoc/diagram.rb | 32 |
1 files changed, 17 insertions, 15 deletions
diff --git a/lib/rdoc/diagram.rb b/lib/rdoc/diagram.rb index e235e043dc..4aa2ec5656 100644 --- a/lib/rdoc/diagram.rb +++ b/lib/rdoc/diagram.rb @@ -311,28 +311,30 @@ module RDoc # inclusion on the page def wrap_in_image_map(src, dot) - res = %{<map id="map" name="map">\n} + res = "" dot_map = `dot -Tismap #{src}` - dot_map.split($/).each do |area| - unless area =~ /^rectangle \((\d+),(\d+)\) \((\d+),(\d+)\) ([\/\w.]+)\s*(.*)/ - $stderr.puts "Unexpected output from dot:\n#{area}" - return nil - end + + if(!dot_map.empty?) + res << %{<map id="map" name="map">\n} + dot_map.split($/).each do |area| + unless area =~ /^rectangle \((\d+),(\d+)\) \((\d+),(\d+)\) ([\/\w.]+)\s*(.*)/ + $stderr.puts "Unexpected output from dot:\n#{area}" + return nil + end - xs, ys = [$1.to_i, $3.to_i], [$2.to_i, $4.to_i] - url, area_name = $5, $6 + xs, ys = [$1.to_i, $3.to_i], [$2.to_i, $4.to_i] + url, area_name = $5, $6 - res << %{ <area shape="rect" coords="#{xs.min},#{ys.min},#{xs.max},#{ys.max}" } - res << %{ href="#{url}" alt="#{area_name}" />\n} + res << %{ <area shape="rect" coords="#{xs.min},#{ys.min},#{xs.max},#{ys.max}" } + res << %{ href="#{url}" alt="#{area_name}" />\n} + end + res << "</map>\n" end - res << "</map>\n" -# map_file = src.sub(/.dot/, '.map') -# system("dot -Timap #{src} -o #{map_file}") - res << %{<img src="#{dot}" usemap="#map" border="0" alt="#{dot}">} + + res << %{<img src="#{dot}" usemap="#map" alt="#{dot}" />} return res end end end - |