text: 
  //
  // This source file is part of appleseed.
  // Visit https://appleseedhq.net/ for additional information and resources.
  //
  // This software is released under the MIT license.
  //
  // Copyright (c) 2010-2013 Francois Beaune, Jupiter Jazz Limited
  // Copyright (c) 2014-2018 Francois Beaune, The appleseedhq Organization
  //
  // Permission is hereby granted, free of charge, to any person obtaining a copy
  // of this software and associated documentation files (the "Software"), to deal
  // in the Software without restriction, including without limitation the rights
  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  // copies of the Software, and to permit persons to whom the Software is
  // furnished to do so, subject to the following conditions:
  //
  // The above copyright notice and this permission notice shall be included in
  // all copies or substantial portions of the Software.
  //
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  // THE SOFTWARE.
  //
  
  // Interface header.
  #include "testoutputitem.h"
  
  // appleseed.studio headers.
  #include "debug/tests/testoutputwidgetdecorator.h"
  
  // appleseed.foundation headers.
  #include "foundation/utility/string.h"
  
  // Qt headers.
  #include <QColor>
  #include <QString>
  
  // Standard headers.
  #include <string>
  
  using namespace foundation;
  
  namespace appleseed {
  namespace studio {
  
  //
  // TestOutputItem class implementation.
  //
  
  namespace
  {
      double get_time_helper(const QTreeWidgetItem& item)
      {
          return item.data(TestOutputItem::TimeColumnIndex, Qt::UserRole).value<double>();
      }
  }
  
  bool TestOutputItem::operator<(const QTreeWidgetItem& rhs) const
  {
      const int column = treeWidget()->sortColumn();
  
      if (column == TimeColumnIndex)
      {
          return get_time() < get_time_helper(rhs);
      }
      else
      {
          return text(column) < rhs.text(column);
      }
  }
  
  void TestOutputItem::set_passed(const bool passed)
  {
      setData(StatusColumnIndex, Qt::UserRole, passed);
  }
  
  bool TestOutputItem::get_passed() const
  {
      return data(StatusColumnIndex, Qt::UserRole).value<bool>();
  }
  
  void TestOutputItem::set_time(const double time)
  {
      setData(TimeColumnIndex, Qt::UserRole, time);
  }
  
  double TestOutputItem::get_time() const
  {
      return get_time_helper(*this);
  }
  
  namespace
  {
      QString time_to_qstring(const double time)
      {
          const std::string s = pretty_time(time);
          return QString::fromStdString(s);
      }
  
      void set_all_columns_text_color(QTreeWidgetItem* item, const QColor& color)
      {
          for (int i = 0; i < item->columnCount(); ++i)
              item->setForeground(i, color);
      }
  }
  
  void TestOutputItem::set(
      const char*     text,
      const bool      passed,
      const double    time)
  {
      setText(TextColumnIndex, text);
  
      setText(StatusColumnIndex, passed ? "Passed" : "Failed");
      set_passed(passed);
  
      setText(TimeColumnIndex, time_to_qstring(time));
      set_time(time);
  
      if (passed)
      {
          setForeground(StatusColumnIndex, QColor("green"));
      }
      else
      {
          set_all_columns_text_color(this, QColor("red"));
      }
  }
  
  }   // namespace studio
  }   // namespace appleseed
  