Qt Code: 
  1. #ifndef PAWNBOX_SAFETY_DECLARATION
  2. #define PAWNBOX_SAFETY_DECLARATION
  4. class QPixmap;
  5. #include <QWidget>
  6. #include <QRectF>
  7. #include <QColor>
  8. #include <QMap>
  9.  
  10. namespace MTRUTIL {
  11. const int AMOUNT_OF_PAWNS = 7;
  12. }
  13.  
  14. namespace MTR {
  15. class PawnBox : public QWidget {
  16. 	Q_OBJECT
  17. public:
  18. 	PawnBox(QWidget *parent = 0);
  19. protected:
  20. 	void paintEvent(QPaintEvent *event);
  21. 	void mousePressEvent(QMouseEvent *event);
  22. 	void mouseMoveEvent(QMouseEvent *event);
  23. 	void dragMoveEvent(QDragMoveEvent *event);
  24. private:
  25. 	void startDrag();
  26. 	QPoint startPos;
  27. 	bool insidePawn;
  28. 	//klasa pionka
  29. 	class Pawn {
  30. 	public:
  31. 		Pawn();
  32. 		Pawn(QColor &color, QRectF &rec);
  33. 		~Pawn();
  34. 		const QColor &color() const { return color_; }
  35. 		const QRectF &rectF() const { return rectF_; }
  36. 	private:
  37. 		QColor color_;
  38. 		QRectF rectF_;
  39. 		QPixmap *dragPicture;
  40. 	};
  41. 	//
  42. 	Pawn *draggedPawn;
  43. 	QMap<int, Pawn> pawnCollection;
  44. };
  45. }
  46. #endif
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Qt Code: 
  1. PawnBox::Pawn::Pawn() {
  2. 	color_ = QColor(0,0,0);
  3. 	rectF_ = QRectF(5,5,20,20);
  4. 	dragPicture = new QPixmap(20,20);
  5. }
  6. PawnBox::Pawn::Pawn(QColor &color, QRectF &rec) {
  7. 	color_ = color;
  8. 	rectF_ = rec;
  9. 	dragPicture = new QPixmap(20,20);
  10. }
  11. PawnBox::Pawn::~Pawn() {
  12. 	delete dragPicture;
  13. }
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SIGSEV

Any hint?