MultiLed.h

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/*****************************************************************************
 *
 * Copyright (C) 2009 - 2012  Florian Pose <fp@igh-essen.com>
 *
 * This file is part of the QtPdWidgets library.
 *
 * The QtPdWidgets library is free software: you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the License,
 * or (at your option) any later version.
 *
 * The QtPdWidgets library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
 * General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with the QtPdWidgets Library. If not, see
 * <http://www.gnu.org/licenses/>.
 *
 ****************************************************************************/

#ifndef PD_MULTILED_H
#define PD_MULTILED_H

#include <QHash>
#include <QFrame>

#include "Export.h"
#include <QtPdCom1/ScalarSubscriber.h>

namespace Pd {

/****************************************************************************/

class PD_PUBLIC MultiLed:
    public QWidget, public QtPdCom::ScalarSubscriber
{
    Q_OBJECT
    Q_PROPERTY(quint32 diameter
            READ getDiameter WRITE setDiameter RESET resetDiameter)

    public:
        MultiLed(QWidget *parent = 0);
        virtual ~MultiLed();

        bool hasData() const;
        void clearData(); // pure-virtual from ScalarSubscriber

        int getValue() const;
        void setValue(int);

        quint32 getDiameter() const;
        void setDiameter(quint32);
        void resetDiameter();


        struct Value {
            QColor color; 
            enum BlinkMode {
                Steady, 
                Blink 
            };
            BlinkMode blink;

            Value(
                    QColor c = Qt::green, 
                    BlinkMode b = Steady 
                    ):
                color(c), blink(b) {}
        };

        class Q_DECL_EXPORT Hash: public QHash<int, Value> {
            public:
                void insert(
                        int position,
                        QColor c = Qt::green,
                        Value::BlinkMode b = Value::Steady);
        };
        void setHash(const Hash *);

        virtual QSize sizeHint() const;

    protected:
        virtual void updateColor();
        void setCurrentValue(Value);

        static QColor disconnectColor;

        bool event(QEvent *) override;
        void paintEvent(QPaintEvent *) override;

    private slots:
        void blinkEvent();

    private:
        struct PD_PRIVATE Impl;
        std::unique_ptr<Impl> impl;

        PD_PRIVATE void newValues(std::chrono::nanoseconds) override;
        static QTimer blinkTimer; 
};

/****************************************************************************/

} // namespace

#endif