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82 lines
2.7 KiB
82 lines
2.7 KiB
/*************************************************************** |
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* Name: CurveShape.h |
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* Purpose: Defines curve shape class |
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* Author: Michal Bližňák (michal.bliznak@tiscali.cz) |
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* Created: 2007-07-22 |
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* Copyright: Michal Bližňák |
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* License: wxWidgets license (www.wxwidgets.org) |
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* Notes: |
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**************************************************************/ |
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#ifndef _WXSFCURVESHAPE_H |
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#define _WXSFCURVESHAPE_H |
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#include <wx/wxsf/LineShape.h> |
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/*! |
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* \brief Interpolation line shape. The class extends wxSFLineShape class and allows |
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* user to create curved connection line. |
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*/ |
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class WXDLLIMPEXP_SF wxSFCurveShape : public wxSFLineShape |
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{ |
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public: |
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XS_DECLARE_CLONABLE_CLASS(wxSFCurveShape); |
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/*! \brief Default constructor. */ |
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wxSFCurveShape(); |
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/*! |
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* \brief User constructor. |
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* \param src ID of the source shape |
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* \param trg ID of the target shape |
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* \param path Array of line's control points |
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* \param manager Parent parent diagram manager |
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*/ |
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wxSFCurveShape(long src, long trg, const wxXS::RealPointList& path, wxSFDiagramManager* manager); |
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/*! |
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* \brief Copy constructor. |
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* \param obj Reference to the source object |
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*/ |
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wxSFCurveShape(const wxSFCurveShape& obj); |
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/*! \brief Destructor. */ |
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virtual ~wxSFCurveShape(); |
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// public virtual function |
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/*! |
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* \brief Get line's bounding box. The function can be overrided if neccessary. |
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* \return Bounding rectangle |
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*/ |
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virtual wxRect GetBoundingBox(); |
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// public functions |
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/*! |
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* \brief Get a line point laying on the given line segment and shifted |
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* from the beggining of the segment by given offset. |
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* \param segment Zero-based index of the line segment |
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* \param offset Real value in the range from 0 to 1 which determines |
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* the linepoint offset inside the line segment |
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* \return Line point |
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*/ |
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wxRealPoint GetPoint(size_t segment, double offset); |
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protected: |
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// protected virtual functions |
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/*! |
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* \brief Internal function used for drawing of completed line shape. |
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* \param dc Refernce of the device context where the shape will be darwn to |
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*/ |
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virtual void DrawCompleteLine(wxDC& dc); |
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private: |
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// private functions |
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/*! \brief Auxiliary drawing function. */ |
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void GetSegmentQuaternion(size_t segment, wxRealPoint& A, wxRealPoint& B, wxRealPoint& C, wxRealPoint& D); |
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/*! \brief Auxiliary drawing function. */ |
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void Catmul_Rom_Kubika(const wxRealPoint& A, const wxRealPoint& B, const wxRealPoint& C, const wxRealPoint& D, wxDC& dc); |
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/*! \brief Auxiliary drawing function. */ |
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wxRealPoint Coord_Catmul_Rom_Kubika(const wxRealPoint& p1, const wxRealPoint& p2, const wxRealPoint& p3, const wxRealPoint& p4, double t); |
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}; |
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#endif //_WXSFCURVESHAPE_H
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