wpilibc/shared/include/SmartDashboard/SendableChooser.h

/*----------------------------------------------------------------------------*/
/* Copyright (c) FIRST 2011-2016. All Rights Reserved.                        */
/* Open Source Software - may be modified and shared by FRC teams. The code   */
/* must be accompanied by the FIRST BSD license file in the root directory of */
/* the project.                                                               */
/*----------------------------------------------------------------------------*/

#ifndef __SENDABLE_CHOOSER_H__
#define __SENDABLE_CHOOSER_H__

#include "SmartDashboard/Sendable.h"
#include "tables/ITable.h"
#include <map>
#include <memory>
#include <string>

/**
 * The {@link SendableChooser} class is a useful tool for presenting a selection
 * of options
 * to the {@link SmartDashboard}.
 *
 * <p>For instance, you may wish to be able to select between multiple
 * autonomous modes.
 * You can do this by putting every possible {@link Command} you want to run as
 * an autonomous into
 * a {@link SendableChooser} and then put it into the {@link SmartDashboard} to
 * have a list of options
 * appear on the laptop.  Once autonomous starts, simply ask the {@link
 * SendableChooser} what the selected
 * value is.</p>
 *
 * @see SmartDashboard
 */
class SendableChooser : public Sendable {
 public:
  virtual ~SendableChooser() = default;

  void AddObject(const std::string &name, void *object);
  void AddDefault(const std::string &name, void *object);
  void *GetSelected();

  virtual void InitTable(std::shared_ptr<ITable> subtable);
  virtual std::shared_ptr<ITable> GetTable() const;
  virtual std::string GetSmartDashboardType() const;

 private:
  std::string m_defaultChoice;
  std::map<std::string, void *> m_choices;
  std::shared_ptr<ITable> m_table;
};

#endif