--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/m-toolbox/classes/@history/dotview.m	Wed Nov 23 19:22:13 2011 +0100
@@ -0,0 +1,95 @@
+% DOTVIEW view history of an object via the DOT interpreter.
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% DESCRIPTION: DOTVIEW view history of an object via the DOT interpreter. 
+% 
+% The history is converted to a dot file (www.graphviz.org) then: 
+% 1) rendered to the format specified inside the user's LTPDA Toolbox Preferences
+% (accessible via the dedicated GUI or typing "LTPDAprefs" on the Matlb terminal) 
+% 2) opened with the chosen viewer. 
+% 3) The graphic file is kept.
+%
+% CALL:        dotview(h, pl);
+%              dotview(h, 'my_filename');
+%              dotview(h);                % Displays only the diagram
+%
+% INPUTS:      h   - history object
+%              pl  - plist of options
+%
+%
+% VERSION:     $Id: dotview.m,v 1.17 2010/09/17 14:08:51 ingo Exp $
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+function varargout = dotview(varargin)
+
+  % get global variables
+  prefs = getappdata(0, 'LTPDApreferences');
+  DOT    = char(prefs.getExternalPrefs.getDotBinaryPath);
+  FEXT   = char(prefs.getExternalPrefs.getDotOutputFormat);
+
+  %%% Set inputs
+  objs = utils.helper.collect_objects(varargin(:), 'history');
+  pl   = utils.helper.collect_objects(varargin(:), 'plist');
+  fn   = utils.helper.collect_objects(varargin(:), 'char');
+
+  pl = combine(pl, getDefaultPlist);
+
+  view        = find(pl, 'view');
+  iformat     = find(pl, 'format');
+  if ~isempty(fn)
+    filename = fn;
+  else
+    filename = find(pl, 'filename');
+  end
+  
+  % Create tempoary filename 
+  if isempty(filename)
+    filename = fullfile(tempdir, 'ltpda_dotview.pdf');
+  end
+  if ~isempty(iformat)
+    FEXT = iformat;
+  end
+  
+  for jj=1:numel(objs)
+    
+    [path, name, ext] = fileparts(filename);
+
+    % Convert ssm to a tmp dot file
+    tname   = tempname;
+    dotfile = [tname '.dot'];
+    outfile = fullfile(path, [name '.' FEXT]);
+
+    % Make DOT file
+    hist2dot(objs(jj), dotfile, pl);
+
+    % Write to graphics file
+    cmd = sprintf('%s -T%s -o %s %s', DOT, FEXT, outfile, dotfile);
+    system(cmd);
+
+    % View graphics file
+    if view
+      if any(strcmpi(FEXT, {'gif', 'ico', 'jpg', 'jpeg', 'jpe', 'png', 'tiff'}))
+        image(imread(outfile));
+      else
+        open(outfile);
+      end
+    end
+    
+    % Delete tmp dotfile
+    delete(dotfile);
+  end  
+ 
+end
+
+
+%--------------------------------------------------------------------------
+% Get Default Plist
+%--------------------------------------------------------------------------
+function plo = getDefaultPlist()
+  
+  % Use the "factory" plist
+  plo = plist.DOTVIEW_PLIST;
+  
+end
+