Button.cpp

/*----------------------------------------------------------------------------*/
/* Copyright (c) FIRST 2011. 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 $(WIND_BASE)/WPILib.  */
/*----------------------------------------------------------------------------*/

#include "Buttons/Button.h"

#include "Buttons/HeldButtonScheduler.h"
#include "Buttons/PressedButtonScheduler.h"
#include "Buttons/ReleasedButtonScheduler.h"
#include "NetworkTables/NetworkTable.h"

Button::Button() {
        m_table = NULL;
}

bool Button::Grab()
{
        if (Get())
                return true;
        else if (m_table != NULL)
        {
                if (m_table->IsConnected())
                        return m_table->GetBoolean("pressed");
                else
                        return false;
        }
        else
                return false;
}

void Button::WhenPressed(Command *command)
{
        PressedButtonScheduler *pbs = new PressedButtonScheduler(Grab(), this, command);
        pbs->Start();
}

void Button::WhileHeld(Command *command)
{
        HeldButtonScheduler *hbs = new HeldButtonScheduler(Grab(), this, command);
        hbs->Start();
}

void Button::WhenReleased(Command *command)
{
        ReleasedButtonScheduler *rbs = new ReleasedButtonScheduler(Grab(), this, command);
        rbs->Start();
}

NetworkTable* Button::GetTable()
{
        if (m_table == NULL)
        {
                m_table = new NetworkTable();
                m_table->PutBoolean("pressed", Get());
        }
        return m_table;
}