ImageWidget.h

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#ifndef CNOID_BASE_IMAGE_WIDGET_H
#define CNOID_BASE_IMAGE_WIDGET_H
 
#include <QWidget>
#include <cnoid/Image>
#include <thread>
#include <mutex>
#include "exportdecl.h"
 
namespace cnoid {
 
class Image;
 
class CNOID_EXPORT ImageWidget : public QWidget
{
    Q_OBJECT
 
public:
    explicit ImageWidget(QWidget* parent = nullptr, Qt::WindowFlags f = Qt::WindowFlags());
 
//public Q_SLOTS:
    void setPixmap(const QPixmap& pixmap);
    void setImage(const Image& image);
    void setImage(const QImage& image);
 
    void setScalingEnabled(bool on);
    bool isScalingEnabled() const;
 
    void zoom(double scale);
    void translate(QPoint pos);
 
    bool getTransform(QTransform& transform);
    double getAngle();
    void setTransform(const QTransform& transform);
    void setAngle(double angle);
    void rotate(double angle);
    void reset();
    Image& getImage();
    void clear();
    std::mutex mtx;
 
  protected:
    virtual void paintEvent(QPaintEvent* event);
    virtual QSize sizeHint() const;
    virtual void resizeEvent(QResizeEvent *event);
        
private:
    QPixmap pixmap_;
    bool isScalingEnabled_;
    QTransform transform_;
    QTransform notScaledTransform_;
    QTransform initialTransform_;
    Image transformedImage;
 
    void fitCenter();
    void resize(const QSize& size);
    bool fitted;
    QSize oldSize;
    double oldScale;
    bool settedT;
 
};
 
}
 
#endif