ajapreviewwidget.h

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/* SPDX-License-Identifier: MIT */
#ifndef AJAPREVIEW_WIDGET_H
#define AJAPREVIEW_WIDGET_H
 
#include <QBasicTimer>
#include <QtCore>
#if (QT_VERSION >= QT_VERSION_CHECK(5, 0, 0))
    #include <QtWidgets>
#else
    #include <QtGui>
#endif
#include <QThread>
#include <QList>
#include <QRectF>
#include "ajatypes.h"
#if defined (INCLUDE_AJACC)
    #include "ajacc/includes/ntv2caption608types.h"
#endif  //  defined (INCLUDE_AJACC)
 
class AJAPreviewWidget;
 
#define AJAPREVIEW_WIDGET_X (960)
#define AJAPREVIEW_WIDGET_Y (540)
 
typedef struct 
{
    bool    display;
    QRectF  roiRect;  
    QColor  roiRectColor;
 
} ROIStruct;
 
typedef QList<ROIStruct> ROIRectList;
 
 
class AJAPreviewWidget : public QFrame
{
    Q_OBJECT
 
    public:
        AJAPreviewWidget (QWidget * parent = AJA_NULL);
 
    signals:
        void droppedFile (QString fileName);
 
    public slots:
        void updateFrame (const QImage &image, bool clear);
        void updateFrameWithStatus (const QImage &image, const QString &statusString, bool clear);
        void updateFrameWithROI (const QImage &image, ROIRectList roiList, bool clear);
        void updateROI (ROIRectList roiList);
        void updateStatusString (const QString statusString);
    #if defined (INCLUDE_AJACC)
        void updateCaptionScreen (const ushort * inScreen);
    #endif  //  defined (INCLUDE_AJACC)
 
    private slots:
        void renderFrame ();
 
    protected:
        void paintEvent (QPaintEvent * event);
 
        void dragEnterEvent (QDragEnterEvent *event);
        void dropEvent (QDropEvent *event);
 
    private:
        QImage              _image;
        bool                _clear;
        bool                _render;
        QPixmap             _pixmap;
        QString             _statusString;
        int                 _step;
        ROIRectList         _roiList;
        QSize               _unscaledImageSize;
    #if defined (INCLUDE_AJACC)
        QString             _captionStrings [15];
    #endif  //  defined (INCLUDE_AJACC)
 
};  //  AJAPreviewWidget
 
#endif  //  AJAPREVIEW_WIDGET_H