Add a useful package (from Source forge) for octave

[CreaPhase.git] / octave_packages / geometry-1.5.0 / io / @svg / subsref.m

diff --git a/octave_packages/geometry-1.5.0/io/@svg/subsref.m b/octave_packages/geometry-1.5.0/io/@svg/subsref.m
new file mode 100644 (file)
index 0000000..81bbc13
--- /dev/null
+++ b/octave_packages/geometry-1.5.0/io/@svg/subsref.m
@@ -0,0 +1,84 @@
+## Copyright (C) 2011 Carnë Draug <carandraug+dev@gmail.com>
+## Copyright (c) 2011 Juan Pablo Carbajal <carbajal@ifi.uzh.ch>
+## Improvement based on John W. Eaton's idea.
+##
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 3 of the License, or
+## (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, see <http://www.gnu.org/licenses/>.
+
+## -*- texinfo -*-
+## @deftypefn {Function File} {} function_name ()
+## @end deftypefn
+
+function varargout = subsref (obj, idx)
+
+  persistent __method__ method4field typeNotImplemented
+  if isempty(__method__)
+
+    __method__ = struct();
+
+    __method__.plot = @(o,varargin) plot (o, varargin{:});
+    __method__.getpath = @(o,varargin) getpath (o, varargin{:});
+    __method__.pathid = @(o,varargin) pathid(o,varargin{:});
+    __method__.path2polygon = @(o,varargin) path2polygon (o, varargin{:});
+    __method__.normalize = @(o,varargin) normalize (o, varargin{:});
+    __method__.height = @(o,varargin) height(o, varargin{:});
+    __method__.width = @(o,varargin) width(o,varargin{:});
+
+    # Error strings
+    method4field = "Class %s has no field %s. Use %s() for the method.";
+    typeNotImplemented = "%s no implemented for class %s.";
+
+  end
+
+  if ( !strcmp (class (obj), 'svg') )
+    error ("Object must be of the svg class but '%s' was used", class (obj) );
+  elseif ( idx(1).type != '.' )
+    error ("Invalid index for class %s", class (obj) );
+  endif
+
+  method = idx(1).subs;
+  if ~isfield(__method__, method)
+    error('Unknown method %s.',method);
+  else
+    fhandle = __method__.(method);
+  end
+
+  if strcmp(method,'normalize')
+    warning("svg:Devel",["Not returning second output argument of %s" ...
+                         " use method(obj) API to get it"],method);
+  end
+
+  if numel (idx) == 1 % can't access properties, only methods
+
+    error (method4field, class (obj), method, method);
+
+  end
+
+  if strcmp (idx(2).type, '()')
+
+    args = idx(2).subs;
+    if isempty(args)
+     out = fhandle (obj);
+    else
+      out = fhandle (obj, args{:});
+    end
+
+    varargout{1} = out;
+
+  else
+
+    error (typeNotImplemented,[method idx(2).type], class (obj));
+
+  end
+
+endfunction