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Classes | Enumerations | Variables
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