00001
00002
00003
00004
00005
00006
00007 #ifndef DIGITIZE_STATE_POINT_MATCH_H
00008 #define DIGITIZE_STATE_POINT_MATCH_H
00009
00010 #include "DigitizeStateAbstractBase.h"
00011 #include "PointMatchPixel.h"
00012 #include <QList>
00013 #include <QPoint>
00014
00015 class DocumentModelPointMatch;
00016 class QGraphicsEllipseItem;
00017 class QGraphicsPixmapItem;
00018 class QImage;
00019
00021 class DigitizeStatePointMatch : public DigitizeStateAbstractBase
00022 {
00023 public:
00025 DigitizeStatePointMatch(DigitizeStateContext &context);
00026 virtual ~DigitizeStatePointMatch();
00027
00028 virtual QString activeCurve () const;
00029 virtual void begin(CmdMediator *cmdMediator,
00030 DigitizeState previousState);
00031 virtual bool canPaste (const Transformation &transformation,
00032 const QSize &viewSize) const;
00033 virtual QCursor cursor (CmdMediator *cmdMediator) const;
00034 virtual void end();
00035 virtual void handleContextMenuEventAxis (CmdMediator *cmdMediator,
00036 const QString &pointIdentifier);
00037 virtual void handleContextMenuEventGraph (CmdMediator *cmdMediator,
00038 const QStringList &pointIdentifiers);
00039 virtual void handleCurveChange(CmdMediator *cmdMediator);
00040 virtual void handleKeyPress (CmdMediator *cmdMediator,
00041 Qt::Key key,
00042 bool atLeastOneSelectedItem);
00043 virtual void handleMouseMove (CmdMediator *cmdMediator,
00044 QPointF posScreen);
00045 virtual void handleMousePress (CmdMediator *cmdMediator,
00046 QPointF posScreen);
00047 virtual void handleMouseRelease (CmdMediator *cmdMediator,
00048 QPointF posScreen);
00049 virtual QString state() const;
00050 virtual void updateAfterPointAddition ();
00051 virtual void updateModelDigitizeCurve (CmdMediator *cmdMediator,
00052 const DocumentModelDigitizeCurve &modelDigitizeCurve);
00053 virtual void updateModelSegments(const DocumentModelSegments &modelSegments);
00054
00055 private:
00056 DigitizeStatePointMatch();
00057
00058 void createPermanentPoint (CmdMediator *cmdMediator,
00059 const QPointF &posScreen);
00060 void createTemporaryPoint (CmdMediator *cmdMediator,
00061 const QPoint &posScreen);
00062 QList<PointMatchPixel> extractSamplePointPixels (const QImage &img,
00063 const DocumentModelPointMatch &modelPointMatch,
00064 const QPointF &posScreen) const;
00065 void findPointsAndShowFirstCandidate (CmdMediator *cmdMediator,
00066 const QPointF &posScreen);
00067 bool pixelIsOnInImage (const QImage &img,
00068 int x,
00069 int y,
00070 int radiusLimit) const;
00071 void popCandidatePoint (CmdMediator *cmdMediator);
00072 void promoteCandidatePointToPermanentPoint(CmdMediator *cmdMediator);
00073
00074 QGraphicsEllipseItem *m_outline;
00075 QGraphicsPixmapItem *m_candidatePoint;
00076
00077
00078
00079 QList<QPoint> m_candidatePoints;
00080
00081 QPoint m_posCandidatePoint;
00082 };
00083
00084 #endif // DIGITIZE_STATE_POINT_MATCH_H