akunit.h
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/* Webcamoid, webcam capture application.
* Copyright (C) 2019 Gonzalo Exequiel Pedone
*
* Webcamoid is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Webcamoid 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Webcamoid. If not, see <http://www.gnu.org/licenses/>.
*
* Web-Site: http://webcamoid.github.io/
*/
#ifndef AKUNIT_H
#define AKUNIT_H
#include <QObject>
#include <QVariant>
#include "akcommons.h"
class AkUnitPrivate;
class QWindow;
class QQuickItem;
class AKCOMMONS_EXPORT AkUnit: public QObject
{
Q_OBJECT
Q_PROPERTY(qreal value
READ value
WRITE setValue
RESET resetValue
NOTIFY valueChanged)
Q_PROPERTY(Unit unit
READ unit
WRITE setUnit
RESET resetUnit
NOTIFY unitChanged)
Q_PROPERTY(int pixels
READ pixels
NOTIFY pixelsChanged)
public:
enum Unit
{
// Absolute
cm,
mm,
in,
px,
pt,
pc,
dp,
// Relative
vw,
vh,
vmin,
vmax,
};
Q_ENUM(Unit)
AkUnit(qreal value=0.0, Unit unit=px);
AkUnit(qreal value, const QString &unit);
AkUnit(qreal value, Unit unit, QWindow *parent);
AkUnit(qreal value, const QString &unit, QWindow *parent);
AkUnit(qreal value, Unit unit, QQuickItem *parent);
AkUnit(qreal value, const QString &unit, QQuickItem *parent);
AkUnit(const AkUnit &other);
virtual ~AkUnit();
AkUnit &operator =(const AkUnit &other);
bool operator ==(const AkUnit &other) const;
bool operator !=(const AkUnit &other) const;
operator int() const;
operator QString() const;
Q_INVOKABLE static QObject *create(qreal value=0.0,
AkUnit::Unit unit=AkUnit::px);
Q_INVOKABLE static QObject *create(qreal value, const QString &unit);
Q_INVOKABLE static QObject *create(qreal value,
AkUnit::Unit unit,
QObject *parent);
Q_INVOKABLE static QObject *create(qreal value,
const QString &unit,
QObject *parent);
Q_INVOKABLE QVariant toVariant() const;
Q_INVOKABLE qreal value() const;
Q_INVOKABLE AkUnit::Unit unit() const;
Q_INVOKABLE int pixels() const;
Q_INVOKABLE AkUnit convert(AkUnit::Unit unit) const;
Q_INVOKABLE AkUnit convert(const QString &unit) const;
private:
AkUnitPrivate *d;
signals:
void valueChanged(qreal value);
void unitChanged(AkUnit::Unit unit);
void pixelsChanged(int pixels);
public slots:
void setValue(qreal value);
void setUnit(AkUnit::Unit unit);
void resetValue();
void resetUnit();
static void registerTypes();
};
AKCOMMONS_EXPORT QDebug operator <<(QDebug debug, const AkUnit &unit);
AKCOMMONS_EXPORT QDataStream &operator >>(QDataStream &istream, AkUnit &unit);
AKCOMMONS_EXPORT QDataStream &operator <<(QDataStream &ostream, const AkUnit &unit);
AKCOMMONS_EXPORT QDebug operator <<(QDebug debug, const AkUnit::Unit &unit);
Q_DECLARE_METATYPE(AkUnit)
Q_DECLARE_METATYPE(AkUnit::Unit)
#endif // AKUNIT_H