Files
allwpilib/wpilibc/shared/include/Buttons/Trigger.h
Tyler Veness 05626cfafe Fixed cpplint.py warnings (#215)
* Fixed cpplint.py [build/include_order] and [build/include_what_you_use] warnings
* Fixed cpplint.py [readability/casting] warnings
* Updated .styleguide format
* Fixed cpplint.py [build/header_guard] warnings
2016-09-05 13:55:31 -07:00

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/*----------------------------------------------------------------------------*/
/* 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. */
/*----------------------------------------------------------------------------*/
#pragma once
#include <memory>
#include <string>
#include "SmartDashboard/Sendable.h"
class Command;
/**
* This class provides an easy way to link commands to inputs.
*
* It is very easy to link a polled input to a command. For instance, you could
* link the trigger button of a joystick to a "score" command or an encoder
* reaching
* a particular value.
*
* It is encouraged that teams write a subclass of Trigger if they want to have
* something unusual (for instance, if they want to react to the user holding
* a button while the robot is reading a certain sensor input). For this, they
* only have to write the {@link Trigger#Get()} method to get the full
* functionality
* of the Trigger class.
*/
class Trigger : public Sendable {
public:
Trigger() = default;
virtual ~Trigger() = default;
bool Grab();
virtual bool Get() = 0;
void WhenActive(Command* command);
void WhileActive(Command* command);
void WhenInactive(Command* command);
void CancelWhenActive(Command* command);
void ToggleWhenActive(Command* command);
void InitTable(std::shared_ptr<ITable> subtable) override;
std::shared_ptr<ITable> GetTable() const override;
std::string GetSmartDashboardType() const override;
protected:
std::shared_ptr<ITable> m_table;
};