include/wx/affinematrix2d.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:         wx/affinematrix2d.h
   3 // Purpose:      wxAffineMatrix2D class.
   4 // Author:       Based on wxTransformMatrix by Chris Breeze, Julian Smart
   5 // Created:      2011-04-05
   6 // Copyright:    (c) wxWidgets team
   7 // Licence:      wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifndef _WX_AFFINEMATRIX2D_H_
  11 #define _WX_AFFINEMATRIX2D_H_
  12
  13 #include "wx/defs.h"
  14
  15 #if wxUSE_GEOMETRY
  16
  17 #include "wx/affinematrix2dbase.h"
  18
  19 // A simple implementation of wxAffineMatrix2DBase interface done entirely in
  20 // wxWidgets.
  21 class WXDLLIMPEXP_CORE wxAffineMatrix2D : public wxAffineMatrix2DBase
  22 {
  23 public:
  24     wxAffineMatrix2D() : m_11(1), m_12(0),
  25                          m_21(0), m_22(1),
  26                          m_tx(0), m_ty(0)
  27     {
  28     }
  29
  30     // Implement base class pure virtual methods.
  31     virtual void Set(const wxMatrix2D& mat2D, const wxPoint2DDouble& tr);
  32     virtual void Get(wxMatrix2D* mat2D, wxPoint2DDouble* tr) const;
  33     virtual void Concat(const wxAffineMatrix2DBase& t);
  34     virtual bool Invert();
  35     virtual bool IsIdentity() const;
  36     virtual bool IsEqual(const wxAffineMatrix2DBase& t) const;
  37     virtual void Translate(wxDouble dx, wxDouble dy);
  38     virtual void Scale(wxDouble xScale, wxDouble yScale);
  39     virtual void Rotate(wxDouble cRadians);
  40
  41 protected:
  42     virtual wxPoint2DDouble DoTransformPoint(const wxPoint2DDouble& p) const;
  43     virtual wxPoint2DDouble DoTransformDistance(const wxPoint2DDouble& p) const;
  44
  45 private:
  46     wxDouble m_11, m_12, m_21, m_22, m_tx, m_ty;
  47 };
  48
  49 #endif // wxUSE_GEOMETRY
  50
  51 #endif // _WX_AFFINEMATRIX2D_H_