+//---------------------------------------------------------------------------
+
+/*
+class wxGraphicsMatrix
+{
+public :
+ wxGraphicsMatrix() {}
+
+ virtual ~wxGraphicsMatrix() {}
+
+ wxGraphicsMatrix* Concat( const wxGraphicsMatrix *t ) const;
+
+ // returns the inverse matrix
+ wxGraphicsMatrix* Invert() const;
+
+ // returns true if the elements of the transformation matrix are equal ?
+ bool operator==(const wxGraphicsMatrix& t) const;
+
+ // return true if this is the identity matrix
+ bool IsIdentity();
+
+ //
+ // transformation
+ //
+
+ // translate
+ virtual void Translate( wxDouble dx , wxDouble dy ) = 0;
+
+ // scale
+ virtual void Scale( wxDouble xScale , wxDouble yScale ) = 0;
+
+ // rotate (radians)
+ virtual void Rotate( wxDouble angle ) = 0;
+} ;
+*/
+
+