layout.hpp

//This package is based on rqt_image_view package. (for copyright notes, please read the ReadMe.txt)
//     Author: Hafez Farazi <farazi@ais.uni-bonn.de>
#pragma once
#include <opencv2/opencv.hpp>
#include <rqt_vision_module/mouseevent.hpp>
#include <QLayout>
#include <QFrame>
#include <QLayoutItem>
#include <QSize>
#include <QMutex>
#include <QRect>
#include <QImage>
#include <QPainter>
#include <QMouseEvent>
#include <QDebug>


using namespace cv;

namespace rqt_vision_module
{

class RatioLayoutedFrame: public QFrame
{

Q_OBJECT

public:

    mutable QMutex output_mutex_;

    Point2d ClickedPoint;

    QList<QString> listText;

    RatioLayoutedFrame(QWidget* parent, Qt::WFlags flags = 0);

    virtual ~RatioLayoutedFrame();

    const QImage& getImage() const;

    QImage getImageCopy() const;

    void setImage(const QImage& image);

    QRect getAspectRatioCorrectPaintArea();

    void resizeToFitAspectRatio();

    void setInnerFrameMinimumSize(const QSize& size);

    void setInnerFrameMaximumSize(const QSize& size);

    void setInnerFrameFixedSize(const QSize& size);

    signals:

    void delayed_update();
    void mouseEvent(MouseEvent event, float x, float y);

protected:

    void setAspectRatio(unsigned short width, unsigned short height);
    
    virtual void mousePressEvent(QMouseEvent * event);
    virtual void mouseReleaseEvent(QMouseEvent * event);
    virtual void wheelEvent(QWheelEvent* event);

    virtual void paintEvent(QPaintEvent* event);
    virtual bool eventFilter(QObject *obj, QEvent *event);
    
private:
    static int greatestCommonDivisor(int a, int b);
    Point2f getMousePos(QMouseEvent *event);
    
private:
    QSize aspect_ratio_;

    mutable QMutex qimage_mutex_;
    QImage qimage_;
};

}