www.pudn.com > snake_vc++.rar > QtCvWrapper.h

#pragma once 
 
// Qt includes 
#include  
 
// forwared declarations 
class MainProgram; 
class MainWindow; 
class Snake; 
class QImage; 
class QPoint; 
 
// OpenCV includes 
#ifdef _CH_ 
#pragma package  
#endif 
 
#ifndef _EiC 
#include "cv.h" 
#include "highgui.h" 
#endif 
 
//!  The QtCvWrapper implements a wrapper between Qt GUI and OpenCV framework 
/*! 
 * The QtCvWrapper implements some connections between the Qt GUI and the Intel OpenCV  
 * library. Also signal and slot connections from Qt to the non-Qt part are handeled  
 * here. Most of the functions from the Snake class are initiated from this wrapper 
 * when certain signals comming from the GUI. 
 * 
 * \param parent represents the connection to the Image-Processing part 
 * \param gui holds the pointer to the GUI 
 * 
 */ 
class QtCvWrapper : public QObject 
{ 
	Q_OBJECT; 
 
public: 
	//! constructs the wrapper between Qt and OpenCV 
	QtCvWrapper(MainProgram* parent, MainWindow* gui); 
	//! destructor 
	~QtCvWrapper(void); 
 
	//! indicates if the iteration is schown or not 
	inline bool iterate(){return m_iterate;}; 
	//! indicates if the iteration is schown or not 
	inline bool step(){return m_step;}; 
 
public slots: 
	//! slot is called when a new image is opened to synchronize the IplImage 
	void slotImageOpened(); 
	//! when the snake buttin is hit the algorithm should start 
	void slotSnakeButtonPressed(); 
	//! just does a small demo with a simple ellipse in the image 
	void slotTest(); 
	//! does initialisation of the initial snake 
	void slotInitCurve(); 
	//! iteration visualisation is turned on 
	void slotIterationOn(); 
	//! iteration visualisation is turned off 
	void slotIterationOff(); 
	//! iteration visualisation is turned on with user interaction 
	void slotIterationStep(); 
 
 
private: 
	//! a simple test image with an ellipse is created 
	void createTestImage(CvPoint center, CvSize axes, CvScalar color, CvScalar background); 
 
	//! converts an ipl image to a qimage (hopefully) 
	void convertImage(IplImage* src, QImage* dst); 
 
	//! creates an ellipse with the initialized upper left and lower right boundingbox vertices 
	CvPoint* createEllipse(QPoint ulPt, QPoint lrPt, int numSegments); 
 
	MainProgram* m_parent; //! parent that created the wrapper 
	MainWindow* m_gui;   //! pointer to the actual gui 
	Snake*    m_snake;   //! m_snake is used for applying the snake algorithm to m_iplImg 
	IplImage* m_iplImg;  //! the actual shown and processed image 
 
	bool m_iterate;      //! switches iterations on/off 
	bool m_step;         //! does stepwise iterations 
 
};