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:      wxWidgets licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifndef _WX_AFFINEMATRIX2D_H_
  11 #define _WX_AFFINEMATRIX2D_H_
  12
  13 #include "wx/affinematrix2dbase.h"
  14
  15 // A simple implementation of wxAffineMatrix2DBase interface done entirely in
  16 // wxWidgets.
  17 class WXDLLIMPEXP_CORE wxAffineMatrix2D : public wxAffineMatrix2DBase
  18 {
  19 public:
  20     wxAffineMatrix2D() : m_11(1), m_12(0),
  21                          m_21(0), m_22(1),
  22                          m_tx(0), m_ty(0)
  23     {
  24     }
  25
  26     // Implement base class pure virtual methods.
  27     virtual void Set(const wxMatrix2D& mat2D, const wxPoint2DDouble& tr);
  28     virtual void Get(wxMatrix2D* mat2D, wxPoint2DDouble* tr) const;
  29     virtual void Concat(const wxAffineMatrix2DBase& t);
  30     virtual bool Invert();
  31     virtual bool IsIdentity() const;
  32     virtual bool IsEqual(const wxAffineMatrix2DBase& t) const;
  33     virtual void Translate(wxDouble dx, wxDouble dy);
  34     virtual void Scale(wxDouble xScale, wxDouble yScale);
  35     virtual void Rotate(wxDouble ccRadians);
  36
  37 protected:
  38     virtual wxPoint2DDouble DoTransformPoint(const wxPoint2DDouble& p) const;
  39     virtual wxPoint2DDouble DoTransformDistance(const wxPoint2DDouble& p) const;
  40
  41 private:
  42     wxDouble m_11, m_12, m_21, m_22, m_tx, m_ty;
  43 };
  44
  45 #endif // _WX_AFFINEMATRIX2D_H_