Code Reorganization

- Changed the ::measure and ::render methods from pure virtual to
  virtual.
- Fixed bug where recur.indicator used the length of the indicator
  instead of the indicator.
- Implemented ColString.{h,cpp} to support generic Views based on
  strings, not tasks.
- Implemented newly virtual Column:: methods.

src/columns/ColString.cpp

@@ -0,0 +1,96 @@
+////////////////////////////////////////////////////////////////////////////////
+// taskwarrior - a command line task list manager.
+//
+// Copyright 2006 - 2011, Paul Beckingham, Federico Hernandez.
+// All rights reserved.
+//
+// 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 2 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, write to the
+//
+//     Free Software Foundation, Inc.,
+//     51 Franklin Street, Fifth Floor,
+//     Boston, MA
+//     02110-1301
+//     USA
+//
+////////////////////////////////////////////////////////////////////////////////
+
+#include <Context.h>
+#include <ColString.h>
+#include <text.h>
+
+extern Context context;
+
+////////////////////////////////////////////////////////////////////////////////
+ColumnString::ColumnString ()
+{
+  _type  = "string";
+  _style = "default";
+  _label = "";
+}
+
+////////////////////////////////////////////////////////////////////////////////
+ColumnString::~ColumnString ()
+{
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// ColumnString is unique - it copies the report name into the label.  This is
+// a kludgy reuse of an otherwise unused member.
+void ColumnString::setReport (const std::string& value)
+{
+  _report = _label = value;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Set the minimum and maximum widths for the value.
+void ColumnString::measure (const std::string& value, int& minimum, int& maximum)
+{
+  maximum = value.length ();
+
+  if (_style == "fixed")
+  {
+    minimum = maximum;
+  }
+  else if (_style == "default")
+  {
+    minimum = longestWord (value);
+  }
+  else
+    throw std::string ("Unrecognized column format '") + _type + "." + _style + "'";
+
+}
+
+////////////////////////////////////////////////////////////////////////////////
+void ColumnString::render (
+  std::vector <std::string>& lines,
+  const std::string& value,
+  int width,
+  Color& color)
+{
+  if (_style == "fixed")
+  {
+    lines.push_back (value);
+  }
+  else if (_style == "default")
+  {
+    std::vector <std::string> raw;
+    wrapText (raw, value, width);
+
+    std::vector <std::string>::iterator i;
+    for (i = raw.begin (); i != raw.end (); ++i)
+      lines.push_back (color.colorize (leftJustify (*i, width)));
+  }
+}
+
+////////////////////////////////////////////////////////////////////////////////