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script/__Lib/diffcalc-2.1/diffcalc/hkl/willmott/commands.py

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+###
+# Copyright 2008-2011 Diamond Light Source Ltd.
+# This file is part of Diffcalc.
+#
+# Diffcalc 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.
+#
+# Diffcalc 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 Diffcalc.  If not, see <http://www.gnu.org/licenses/>.
+###
+
+from diffcalc.hkl.common import getNameFromScannableOrString
+from diffcalc.util import command
+
+
+class WillmottHklCommands(object):
+
+    def __init__(self, hklcalc):
+        self._hklcalc = hklcalc
+        self.commands = [self.con,
+                         self.uncon,
+                         self.cons]
+
+    def __str__(self):
+        return self._hklcalc.__str__()
+
+    @command
+    def con(self, scn_or_string):
+        """con <constraint> -- constrains constraint
+        """
+        name = getNameFromScannableOrString(scn_or_string)
+        self._hklcalc.constraints.constrain(name)
+        print self._report_constraints()
+
+    @command
+    def uncon(self, scn_or_string):
+        """uncon <constraint> -- unconstrains constraint
+        """
+        name = getNameFromScannableOrString(scn_or_string)
+        self._hklcalc.constraints.unconstrain(name)
+        print self._report_constraints()
+
+    @command
+    def cons(self):
+        """cons -- list available constraints and values
+        """
+        print self._report_constraints()
+
+    def _report_constraints(self):
+        return (self._hklcalc.constraints.build_display_table_lines() + '\n\n' +
+               self._hklcalc.constraints._report_constraints())