wxGraphicsMatrix Class Reference
[Graphics Device Interface (GDI)]

#include </home/work/projects/wx/2.9/wx/interface/wx/graphics.h>

Inheritance diagram for wxGraphicsMatrix:

[legend]

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Detailed Description

A wxGraphicsMatrix is a native representation of an affine matrix.

The contents are specific and private to the respective renderer. Instances are ref counted and can therefore be assigned as usual. The only way to get a valid instance is via wxGraphicsContext::CreateMatrix() or wxGraphicsRenderer::CreateMatrix().

Library:  wxCore

Category:  Graphics Device Interface (GDI)

Public Member Functions
virtual void	Concat (const wxGraphicsMatrix *t)
	Concatenates the matrix passed with the current matrix.
void	Concat (const wxGraphicsMatrix &t)
	Concatenates the matrix passed with the current matrix.
virtual void	Get (wxDouble *a=NULL, wxDouble *b=NULL, wxDouble *c=NULL, wxDouble *d=NULL, wxDouble *tx=NULL, wxDouble *ty=NULL) const
	Returns the component values of the matrix via the argument pointers.
virtual void *	GetNativeMatrix () const
	Returns the native representation of the matrix.
virtual void	Invert ()
	Inverts the matrix.
virtual bool	IsEqual (const wxGraphicsMatrix *t) const
	Returns true if the elements of the transformation matrix are equal.
bool	IsEqual (const wxGraphicsMatrix &t) const
	Returns true if the elements of the transformation matrix are equal.
virtual bool	IsIdentity () const
	Return true if this is the identity matrix.
virtual void	Rotate (wxDouble angle)
	Rotates this matrix (in radians).
virtual void	Scale (wxDouble xScale, wxDouble yScale)
	Scales this matrix.
virtual void	Set (wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0, wxDouble tx=0.0, wxDouble ty=0.0)
	Sets the matrix to the respective values (default values are the identity matrix).
virtual void	TransformDistance (wxDouble *dx, wxDouble *dy) const
	Applies this matrix to a distance (ie.
virtual void	TransformPoint (wxDouble *x, wxDouble *y) const
	Applies this matrix to a point.
virtual void	Translate (wxDouble dx, wxDouble dy)
	Translates this matrix.

List of all members.

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Member Function Documentation

void wxGraphicsMatrix::Concat

(

const wxGraphicsMatrix &

t

)

Concatenates the matrix passed with the current matrix.

virtual void wxGraphicsMatrix::Concat

(

const wxGraphicsMatrix *

t

)

[virtual]

Concatenates the matrix passed with the current matrix.

virtual void wxGraphicsMatrix::Get	(	wxDouble *	a = NULL,
		wxDouble *	b = NULL,
		wxDouble *	c = NULL,
		wxDouble *	d = NULL,
		wxDouble *	tx = NULL,
		wxDouble *	ty = NULL
	)			const [virtual]

Returns the component values of the matrix via the argument pointers.

virtual void* wxGraphicsMatrix::GetNativeMatrix

(

)

const [virtual]

Returns the native representation of the matrix.

For CoreGraphics this is a CFAffineMatrix pointer, for GDIPlus a Matrix Pointer, and for Cairo a cairo_matrix_t pointer.

virtual void wxGraphicsMatrix::Invert

(

)

[virtual]

Inverts the matrix.

bool wxGraphicsMatrix::IsEqual

(

const wxGraphicsMatrix &

t

)

const

Returns true if the elements of the transformation matrix are equal.

virtual bool wxGraphicsMatrix::IsEqual

(

const wxGraphicsMatrix *

t

)

const [virtual]

Returns true if the elements of the transformation matrix are equal.

virtual bool wxGraphicsMatrix::IsIdentity

(

)

const [virtual]

Return true if this is the identity matrix.

virtual void wxGraphicsMatrix::Rotate

(

wxDouble

angle

)

[virtual]

Rotates this matrix (in radians).

virtual void wxGraphicsMatrix::Scale	(	wxDouble	xScale,
		wxDouble	yScale
	)			[virtual]

Scales this matrix.

virtual void wxGraphicsMatrix::Set	(	wxDouble	a = 1.0,
		wxDouble	b = 0.0,
		wxDouble	c = 0.0,
		wxDouble	d = 1.0,
		wxDouble	tx = 0.0,
		wxDouble	ty = 0.0
	)			[virtual]

Sets the matrix to the respective values (default values are the identity matrix).

virtual void wxGraphicsMatrix::TransformDistance	(	wxDouble *	dx,
		wxDouble *	dy
	)			const [virtual]

Applies this matrix to a distance (ie.

performs all transforms except translations).

virtual void wxGraphicsMatrix::TransformPoint	(	wxDouble *	x,
		wxDouble *	y
	)			const [virtual]

Applies this matrix to a point.

virtual void wxGraphicsMatrix::Translate	(	wxDouble	dx,
		wxDouble	dy
	)			[virtual]

Translates this matrix.