keys.h

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/* Copyright 2013 - 2015 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/QObject>
#include <QtCore/QThread>
#include <QtCore/QScopedPointer>
#include <QtCore/QHash>

#include "keysInterface.h"
#include "deviceState.h"

namespace trikKernel {
class Configurer;
}

namespace trikHal {
class HardwareAbstractionInterface;
}

namespace trikControl {

class KeysWorker;

class Keys : public KeysInterface
{
    Q_OBJECT

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

    ~Keys() override;

    Status status() const override;

public slots:
    void reset() override;

    bool wasPressed(int code) override;

    bool isPressed(int code) override;

    int buttonCode(bool wait = true) override;

private slots:
    void changeButtonState(int code, int value);

private:
    int pressedButton();

    DeviceState mState;

    QScopedPointer<KeysWorker> mKeysWorker;
    QThread mWorkerThread;
    QHash<int, int> mKeysPressed;
};

}