1 files changed, 52 insertions, 0 deletions
diff --git a/libs/cassowary/ClStrength.cc b/libs/cassowary/ClStrength.cc
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+++ b/libs/cassowary/ClStrength.cc
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+// $Id$
+//
+// Cassowary Incremental Constraint Solver
+// Original Smalltalk Implementation by Alan Borning
+// This C++ Implementation by Greg J. Badros, <gjb@cs.washington.edu>
+// http://www.cs.washington.edu/homes/gjb
+// (C) 1998, 1999 Greg J. Badros and Alan Borning
+// See ../LICENSE for legal details regarding this software
+//
+// ClStrength.cc
+
+#include <cassowary/ClStrength.h>
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#define CONFIG_H_INCLUDED
+#endif
+
+// Use the singleton pattern for the strength objects
+const ClStrength &ClsRequired()
+{
+  // required is distinct by equality to this static object,
+  // but I still use an especially high symbolic weight, just in case
+  // FIXGJB: hack?
+  static ClStrength required_strength("<Required>", 1000, 1000, 1000);
+  return required_strength;
+}
+
+const ClStrength &ClsStrong()
+{
+  static ClStrength strong_strength("strong", 1.0, 0.0, 0.0);
+  return strong_strength;
+}
+
+const ClStrength &ClsMedium()
+{
+  static ClStrength medium_strength("medium", 0.0, 1.0, 0.0);
+  return medium_strength;
+}
+
+
+const ClStrength &ClsWeak()
+{
+  static ClStrength weak_strength("weak", 0.0, 0.0, 1.0);
+  return weak_strength;
+}
+
+// special case for when nLevels = 3, should assert nLevels() == 3
+ClStrength::ClStrength(const string &Name, double w1, double w2, double w3) :
+  _name(Name), _symbolicWeight(w1, w2, w3)
+{ 
+}