gamepad.h

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/* Copyright 2013 - 2016 Matvey Bryksin, Yurii Litvinov and CyberTech Labs Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License. */

#pragma once

#include <QtCore/QScopedPointer>
#include <QtCore/QThread>
#include <QtCore/QHash>
#include <QtCore/QSet>
#include <QtCore/QTimer>

#include <trikKernel/configurer.h>
#include <trikHal/hardwareAbstractionInterface.h>

#include "deviceInterface.h"
#include "fifo.h"
#include "gamepadInterface.h"

namespace trikControl {

class Gamepad : public GamepadInterface, public DeviceInterface
{
    Q_OBJECT

public:
    Gamepad(const trikKernel::Configurer &configurer
            , const trikHal::HardwareAbstractionInterface &hardwareAbstraction);

    ~Gamepad() override = default;

    Status status() const override;

public slots:
    void reset() override;

    bool buttonWasPressed(int buttonNumber) override;

    bool buttonIsPressed(int buttonNumber) override;

    bool isPadPressed(int pad) const override;

    int padX(int pad) const override;

    int padY(int pad) const override;

    int wheel() const override;

    bool isConnected() const override;

    bool disconnect() override;

private slots:
    void onNewData(const QString &data);

    void onButtonStateClearTimerTimeout();

private:
    Q_DISABLE_COPY(Gamepad)

    struct PadStatus {
        int x;
        int y;
        bool isPressed;
    };

    void handlePadUp(int padId);

    void handleWheel(int percent);

    void handlePad(int padId, int x, int y);

    void handleButton(int button, int pressed);

    void handleKeepalive(int waitForMs);

    void handleCustom(const QString &message);

    Fifo mUnderlyingFifo;

    QSet<int> mButtonWasPressed;
    QHash<int, bool> mButtonState;

    QHash<int, QTimer*> mButtonStateClearTimers;

    QHash<int, PadStatus> mPads;
    int mWheelPercent { -101 };

    QTimer mKeepaliveTimer;
    QString mLastCustomMessage;

    bool mConnected { false };
};

}