scanresult.h

/*
    SPDX-FileCopyrightText: 2022 Volker Krause <[email protected]>
    SPDX-License-Identifier: MIT
*/
 
#ifndef PRISON_SCANRESULT_H
#define PRISON_SCANRESULT_H
 
#include "format.h"
#include "prisonscanner_export.h"
 
#include <QExplicitlySharedDataPointer>
#include <QMetaType>
#include <QRect>
#include <QVariant>
 
namespace Prison
{
 
class ScanResultPrivate;
 
/** Result of a barcode scan attempt.
 *
 *  A scan result consists of the barcode content (which can be text or
 *  binary data), the barcode format and the position in the video frame
 *  the barcode was detected.
 *
 *  @since 5.94
 */
class PRISONSCANNER_EXPORT ScanResult
{
    Q_GADGET
    Q_PROPERTY(bool hasContent READ hasContent)
    Q_PROPERTY(QVariant content READ content)
 
    Q_PROPERTY(bool hasText READ hasText)
    Q_PROPERTY(QString text READ text)
 
    Q_PROPERTY(bool hasBinaryData READ hasBinaryData)
    Q_PROPERTY(QByteArray binaryData READ binaryData)
 
    Q_PROPERTY(Prison::Format::BarcodeFormat format READ format)
    Q_PROPERTY(QRect boundingRect READ boundingRect)
 
public:
    explicit ScanResult();
    ScanResult(const ScanResult &);
    ~ScanResult();
    ScanResult &operator=(const ScanResult &);
 
    bool operator==(const ScanResult &other) const;
 
    /** Returns @c true if a barcode has been found. */
    bool hasContent() const;
    /** The barcode content, either a QString or a QByteArray. */
    QVariant content() const;
 
    /** Returns @c true if the found barcode contained a textual payload. */
    bool hasText() const;
    /**
     * Returns the textual barcode content, if the content was text rather than binary data,
     * otherwise returns an empty string.
     */
    QString text() const;
 
    /** Returns @c true if the found barcode contained a binary data payload. */
    bool hasBinaryData() const;
    /**
     * Returns the binary data content, if the content was binary data rather than text,
     * otherwise returns an empty QByteArray.
     */
    QByteArray binaryData() const;
 
    /** The format of the detected barcode. */
    Format::BarcodeFormat format() const;
 
    /** The bounding rectangle of the detected barcode in source coordinates.
     *  @note When using this to display an overlay in a view finder, this needs
     *  to be mapped to item coordinates.
     */
    QRect boundingRect() const;
 
private:
    friend class ScanResultPrivate;
    QExplicitlySharedDataPointer<ScanResultPrivate> d;
};
 
}
 
Q_DECLARE_METATYPE(Prison::ScanResult)
 
#endif // PRISON_SCANRESULT_H