graphics.h File Reference

Classes
class	wxGraphicsPath
	A wxGraphicsPath is a native representation of a geometric path. More...
class	wxGraphicsObject
	This class is the superclass of native graphics objects like pens etc. More...
class	wxGraphicsBitmap
	Represents a bitmap. More...
class	wxGraphicsContext
	A wxGraphicsContext instance is the object that is drawn upon. More...
class	wxGraphicsGradientStop
	Represents a single gradient stop in a collection of gradient stops as represented by wxGraphicsGradientStops. More...
class	wxGraphicsGradientStops
	Represents a collection of wxGraphicGradientStop values for use with CreateLinearGradientBrush and CreateRadialGradientBrush. More...
class	wxGraphicsRenderer
	A wxGraphicsRenderer is the instance corresponding to the rendering engine used. More...
class	wxGraphicsBrush
	A wxGraphicsBrush is a native representation of a brush. More...
class	wxGraphicsFont
	A wxGraphicsFont is a native representation of a font. More...
class	wxGraphicsPen
	A wxGraphicsPen is a native representation of a pen. More...
class	wxGraphicsMatrix
	A wxGraphicsMatrix is a native representation of an affine matrix. More...

Enumerations
enum	wxAntialiasMode {   wxANTIALIAS_NONE,   wxANTIALIAS_DEFAULT }
	Anti-aliasing modes used by wxGraphicsContext::SetAntialiasMode(). More...
enum	wxInterpolationQuality {   wxINTERPOLATION_DEFAULT,   wxINTERPOLATION_NONE,   wxINTERPOLATION_FAST,   wxINTERPOLATION_GOOD,   wxINTERPOLATION_BEST }
	Interpolation quality used by wxGraphicsContext::SetInterpolationQuality(). More...
enum	wxCompositionMode {   wxCOMPOSITION_INVALID = -1,   wxCOMPOSITION_CLEAR,   wxCOMPOSITION_SOURCE,   wxCOMPOSITION_OVER,   wxCOMPOSITION_IN,   wxCOMPOSITION_OUT,   wxCOMPOSITION_ATOP,   wxCOMPOSITION_DEST,   wxCOMPOSITION_DEST_OVER,   wxCOMPOSITION_DEST_IN,   wxCOMPOSITION_DEST_OUT,   wxCOMPOSITION_DEST_ATOP,   wxCOMPOSITION_XOR,   wxCOMPOSITION_ADD }
	Compositing is done using Porter-Duff compositions (see http://keithp.com/~keithp/porterduff/p253-porter.pdf) with wxGraphicsContext::SetCompositionMode(). More...

Variables
const wxGraphicsPen	wxNullGraphicsPen
const wxGraphicsBrush	wxNullGraphicsBrush
const wxGraphicsFont	wxNullGraphicsFont
const wxGraphicsBitmap	wxNullGraphicsBitmap
const wxGraphicsMatrix	wxNullGraphicsMatrix
const wxGraphicsPath	wxNullGraphicsPath

Enumeration Type Documentation

enum wxAntialiasMode

Anti-aliasing modes used by wxGraphicsContext::SetAntialiasMode().

Enumerator:

wxANTIALIAS_NONE	No anti-aliasing.
wxANTIALIAS_DEFAULT	The default anti-aliasing.

enum wxCompositionMode

Compositing is done using Porter-Duff compositions (see http://keithp.com/~keithp/porterduff/p253-porter.pdf) with wxGraphicsContext::SetCompositionMode().

The description give a short equation on how the values of a resulting pixel are calculated. R = Result, S = Source, D = Destination, colors premultiplied with alpha Ra, Sa, Da their alpha components

Enumerator:

wxCOMPOSITION_INVALID	Indicates invalid or unsupported composition mode. This value can't be passed to wxGraphicsContext::SetCompositionMode(). Since 2.9.2
wxCOMPOSITION_CLEAR	R = 0
wxCOMPOSITION_SOURCE	R = S
wxCOMPOSITION_OVER	R = S + D*(1 - Sa)
wxCOMPOSITION_IN	R = S*Da
wxCOMPOSITION_OUT	R = S*(1 - Da)
wxCOMPOSITION_ATOP	R = S*Da + D*(1 - Sa)
wxCOMPOSITION_DEST	R = D, essentially a noop
wxCOMPOSITION_DEST_OVER	R = S*(1 - Da) + D
wxCOMPOSITION_DEST_IN	R = D*Sa
wxCOMPOSITION_DEST_OUT	R = D*(1 - Sa)
wxCOMPOSITION_DEST_ATOP	R = S*(1 - Da) + D*Sa
wxCOMPOSITION_XOR	R = S*(1 - Da) + D*(1 - Sa)
wxCOMPOSITION_ADD	R = S + D

enum wxInterpolationQuality

Interpolation quality used by wxGraphicsContext::SetInterpolationQuality().

Enumerator:

wxINTERPOLATION_DEFAULT	default interpolation, based on type of context, in general medium quality
wxINTERPOLATION_NONE	no interpolation
wxINTERPOLATION_FAST	fast interpolation, suited for interactivity
wxINTERPOLATION_GOOD	better quality
wxINTERPOLATION_BEST	best quality, not suited for interactivity

Variable Documentation

const wxGraphicsBitmap wxNullGraphicsBitmap

const wxGraphicsBrush wxNullGraphicsBrush

const wxGraphicsFont wxNullGraphicsFont

const wxGraphicsMatrix wxNullGraphicsMatrix

const wxGraphicsPath wxNullGraphicsPath

const wxGraphicsPen wxNullGraphicsPen