text: /* ============================================================================
   * Copyright (c) 2009-2016 BlueQuartz Software, LLC
   *
   * Redistribution and use in source and binary forms, with or without modification,
   * are permitted provided that the following conditions are met:
   *
   * Redistributions of source code must retain the above copyright notice, this
   * list of conditions and the following disclaimer.
   *
   * Redistributions in binary form must reproduce the above copyright notice, this
   * list of conditions and the following disclaimer in the documentation and/or
   * other materials provided with the distribution.
   *
   * Neither the name of BlueQuartz Software, the US Air Force, nor the names of its
   * contributors may be used to endorse or promote products derived from this software
   * without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
   * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   * The code contained herein was partially funded by the followig contracts:
   *    United States Air Force Prime Contract FA8650-07-D-5800
   *    United States Air Force Prime Contract FA8650-10-D-5210
   *    United States Prime Contract Navy N00173-07-C-2068
   *
   * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
  
  #pragma once
  
  #include <QtCore/QMap>
  #include <QtCore/QString>
  
  #include "SVWidgetsLib/Core/IFilterWidgetFactory.h"
  #include "SVWidgetsLib/SVWidgetsLib.h"
  
  /**
   * @class FilterWidgetManager FilterWidgetManager.h FilterWidgets/FilterWidgetManager.h
   * @brief This class is a singleton based manager for creating Qt based widgets
   * that expose the various options for each filter.
   *
   * @date Jan 6, 2012
   * @version 1.0
   */
  class SVWidgetsLib_EXPORT FilterWidgetManager
  {
  public:
    // SIMPL_SHARED_POINTERS(FilterWidgetManager)
    /**
     * @brief Returns the name of the class for FilterWidgetManager
     */
    virtual QString getNameOfClass() const;
    /**
     * @brief Returns the name of the class for FilterWidgetManager
     */
    static QString ClassName();
  
    virtual ~FilterWidgetManager();
  
    typedef QMap<QString, IFilterWidgetFactory::Pointer> Collection;
  
    /**
     * @brief Static instance to retrieve the global instance of this class
     * @return
     */
    static FilterWidgetManager* Instance();
  
    /**
     * @brief Registers a PipelineFilterWidgetFactory instance for a give name
     * @param name The name of the filter
     * @param factory An instance of the factory
     */
    static void RegisterFilterWidgetFactory(const QString& name, IFilterWidgetFactory::Pointer factory);
  
    static void RegisterKnownFilterWidgets();
  
    /**
     * @brief Returns the mapping of names to Factory instances for all the
     * factories that are registered.
     * @return
     */
    Collection getFactories();
  
    /**
     * @brief Adds a Factory that creates PipelineFilterWidgets
     * @param name
     * @param factory
     */
    void addFilterWidgetFactory(const QString& widgetType, IFilterWidgetFactory::Pointer factory);
  
    /**
     * @brief createWidget
     * @param parameter
     * @param filter
     * @param parent
     * @return
     */
    QWidget* createWidget(FilterParameter* parameter, AbstractFilter* filter, QWidget* parent);
  
  protected:
    FilterWidgetManager();
  
  private:
    Collection m_Factories;
  
    static FilterWidgetManager* self;
  
  public:
    FilterWidgetManager(const FilterWidgetManager&) = delete;            // Copy Constructor Not Implemented
    FilterWidgetManager(FilterWidgetManager&&) = delete;                 // Move Constructor Not Implemented
    FilterWidgetManager& operator=(const FilterWidgetManager&) = delete; // Copy Assignment Not Implemented
    FilterWidgetManager& operator=(FilterWidgetManager&&) = delete;      // Move Assignment Not Implemented
  };
  