#include </home/zeitlin/src/wx/github/interface/wx/graphics.h>

Inheritance diagram for wxGraphicsContext:

Detailed Description

A wxGraphicsContext instance is the object that is drawn upon.

It is created by a renderer using wxGraphicsRenderer::CreateContext(). This can be either directly using a renderer instance, or indirectly using the static convenience Create() functions of wxGraphicsContext that always delegate the task to the default renderer.

    void MyCanvas::OnPaint(wxPaintEvent &event)
    {
        // Create paint DC
        wxPaintDC dc(this);

        // Create graphics context from it
        wxGraphicsContext *gc = wxGraphicsContext::Create( dc );

        if (gc)
        {
            // make a path that contains a circle and some lines
            gc->SetPen( *wxRED_PEN );
            wxGraphicsPath path = gc->CreatePath();
            path.AddCircle( 50.0, 50.0, 50.0 );
            path.MoveToPoint(0.0, 50.0);
            path.AddLineToPoint(100.0, 50.0);
            path.MoveToPoint(50.0, 0.0);
            path.AddLineToPoint(50.0, 100.0 );
            path.CloseSubpath();
            path.AddRectangle(25.0, 25.0, 50.0, 50.0);

            gc->StrokePath(path);

            delete gc;
        }
    }

Library: wxCore

Category: Graphics Device Interface (GDI), Device Contexts

参照:: wxGraphicsRenderer::CreateContext(), wxGCDC, wxDC

Public Member Functions
virtual void	Clip (const wxRegion &region)=0
	Clips drawings to the specified region.
virtual void	Clip (wxDouble x, wxDouble y, wxDouble w, wxDouble h)=0
	Clips drawings to the specified rectangle.
virtual void	ConcatTransform (const wxGraphicsMatrix &matrix)=0
	Concatenates the passed in transform with the current transform of this context.
virtual wxGraphicsBitmap	CreateBitmap (const wxBitmap &bitmap)=0
	Creates wxGraphicsBitmap from an existing wxBitmap.
virtual wxGraphicsBitmap	CreateBitmapFromImage (const wxImage &image)
	Creates wxGraphicsBitmap from an existing wxImage.
virtual wxGraphicsBitmap	CreateSubBitmap (const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h)=0
	Extracts a sub-bitmap from an existing bitmap.
virtual wxGraphicsBrush	CreateBrush (const wxBrush &brush) const
	Creates a native brush from a wxBrush.
virtual wxGraphicsFont	CreateFont (const wxFont &font, const wxColour &col=*wxBLACK) const
	Creates a native graphics font from a wxFont and a text colour.
virtual wxGraphicsFont	CreateFont (double sizeInPixels, const wxString &facename, int flags=wxFONTFLAG_DEFAULT, const wxColour &col=*wxBLACK) const
	Creates a font object with the specified attributes.
virtual wxGraphicsMatrix	CreateMatrix (wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0, wxDouble tx=0.0, wxDouble ty=0.0) const
	Creates a native affine transformation matrix from the passed in values.
wxGraphicsMatrix	CreateMatrix (const wxAffineMatrix2DBase &mat) const
	Creates a native affine transformation matrix from the passed generic one.
wxGraphicsPath	CreatePath () const
	Creates a native graphics path which is initially empty.
virtual wxGraphicsPen	CreatePen (const wxPen &pen) const
	Creates a native pen from a wxPen.
virtual void	DrawEllipse (wxDouble x, wxDouble y, wxDouble w, wxDouble h)
	Draws an ellipse.
virtual void	DrawIcon (const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h)=0
	Draws the icon.
virtual void	DrawLines (size_t n, const wxPoint2DDouble *points, wxPolygonFillMode fillStyle=wxODDEVEN_RULE)
	Draws a polygon.
virtual void	DrawPath (const wxGraphicsPath &path, wxPolygonFillMode fillStyle=wxODDEVEN_RULE)
	Draws the path by first filling and then stroking.
virtual void	DrawRectangle (wxDouble x, wxDouble y, wxDouble w, wxDouble h)
	Draws a rectangle.
virtual void	DrawRoundedRectangle (wxDouble x, wxDouble y, wxDouble w, wxDouble h, wxDouble radius)
	Draws a rounded rectangle.
void	DrawText (const wxString &str, wxDouble x, wxDouble y)
	Draws text at the defined position.
void	DrawText (const wxString &str, wxDouble x, wxDouble y, wxDouble angle)
	Draws text at the defined position.
void	DrawText (const wxString &str, wxDouble x, wxDouble y, const wxGraphicsBrush &backgroundBrush)
	Draws text at the defined position.
void	DrawText (const wxString &str, wxDouble x, wxDouble y, wxDouble angle, const wxGraphicsBrush &backgroundBrush)
	Draws text at the defined position.
virtual void	FillPath (const wxGraphicsPath &path, wxPolygonFillMode fillStyle=wxODDEVEN_RULE)=0
	Fills the path with the current brush.
virtual void *	GetNativeContext ()=0
	Returns the native context (CGContextRef for Core Graphics, Graphics pointer for GDIPlus and cairo_t pointer for cairo).
virtual void	GetPartialTextExtents (const wxString &text, wxArrayDouble &widths) const =0
	Fills the widths array with the widths from the beginning of text to the corresponding character of text.
virtual void	GetTextExtent (const wxString &text, wxDouble width, wxDouble height, wxDouble descent, wxDouble externalLeading) const =0
	Gets the dimensions of the string using the currently selected font.
virtual wxGraphicsMatrix	GetTransform () const =0
	Gets the current transformation matrix of this context.
virtual void	ResetClip ()=0
	Resets the clipping to original shape.
virtual void	Rotate (wxDouble angle)=0
	Rotates the current transformation matrix (in radians).
virtual void	Scale (wxDouble xScale, wxDouble yScale)=0
	Scales the current transformation matrix.
void	SetBrush (const wxBrush &brush)
	Sets the brush for filling paths.
virtual void	SetBrush (const wxGraphicsBrush &brush)
	Sets the brush for filling paths.
void	SetFont (const wxFont &font, const wxColour &colour)
	Sets the font for drawing text.
virtual void	SetFont (const wxGraphicsFont &font)
	Sets the font for drawing text.
void	SetPen (const wxPen &pen)
	Sets the pen used for stroking.
virtual void	SetPen (const wxGraphicsPen &pen)
	Sets the pen used for stroking.
virtual void	SetTransform (const wxGraphicsMatrix &matrix)=0
	Sets the current transformation matrix of this context.
virtual void	StrokeLine (wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2)
	Strokes a single line.
virtual void	StrokeLines (size_t n, const wxPoint2DDouble beginPoints, const wxPoint2DDouble endPoints)
	Stroke disconnected lines from begin to end points, fastest method available for this purpose.
virtual void	StrokeLines (size_t n, const wxPoint2DDouble *points)
	Stroke lines connecting all the points.
virtual void	StrokePath (const wxGraphicsPath &path)=0
	Strokes along a path with the current pen.
virtual void	Translate (wxDouble dx, wxDouble dy)=0
	Translates the current transformation matrix.
virtual void	BeginLayer (wxDouble opacity)=0
	Redirects all rendering is done into a fully transparent temporary context.
virtual void	EndLayer ()=0
	Composites back the drawings into the context with the opacity given at the BeginLayer call.
virtual bool	SetAntialiasMode (wxAntialiasMode antialias)=0
	Sets the antialiasing mode, returns true if it supported.
virtual wxAntialiasMode	GetAntialiasMode () const
	Returns the current shape antialiasing mode.
virtual bool	SetInterpolationQuality (wxInterpolationQuality interpolation)=0
	Sets the interpolation quality, returns true if it is supported.
virtual wxInterpolationQuality	GetInterpolationQuality () const
	Returns the current interpolation quality.
virtual bool	SetCompositionMode (wxCompositionMode op)=0
	Sets the compositing operator, returns true if it supported.
virtual wxCompositionMode	GetCompositionMode () const
	Returns the current compositing operator.
virtual void	PushState ()=0
	Push the current state of the context's transformation matrix on a stack.
virtual void	PopState ()=0
	Pops a stored state from the stack and sets the current transformation matrix to that state.
virtual void	EnableOffset (bool enable=true)
void	DisableOffset ()
bool	OffsetEnabled ()

wxGraphicsBrush	CreateLinearGradientBrush (wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2, const wxColour &c1, const wxColour &c2) const
	Creates a native brush with a linear gradient.
wxGraphicsBrush	CreateLinearGradientBrush (wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2, const wxGraphicsGradientStops &stops) const
	Creates a native brush with a linear gradient.

virtual wxGraphicsBrush	CreateRadialGradientBrush (wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius, const wxColour &oColor, const wxColour &cColor) const
	Creates a native brush with a radial gradient.
virtual wxGraphicsBrush	CreateRadialGradientBrush (wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius, const wxGraphicsGradientStops &stops)=0
	Creates a native brush with a radial gradient.

virtual void	DrawBitmap (const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h)=0
	Draws the bitmap.
virtual void	DrawBitmap (const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h)=0
	Draws the bitmap.
Static Public Member Functions
static wxGraphicsContext *	Create (wxWindow *window)
	Creates a wxGraphicsContext from a wxWindow.
static wxGraphicsContext *	Create (const wxWindowDC &windowDC)
	Creates a wxGraphicsContext from a wxWindowDC.
static wxGraphicsContext *	Create (const wxMemoryDC &memoryDC)
	Creates a wxGraphicsContext from a wxMemoryDC.
static wxGraphicsContext *	Create (const wxPrinterDC &printerDC)
	Creates a wxGraphicsContext from a wxPrinterDC.
static wxGraphicsContext *	Create (const wxEnhMetaFileDC &metaFileDC)
	Creates a wxGraphicsContext from a wxEnhMetaFileDC.
static wxGraphicsContext *	Create (wxImage &image)
	Creates a wxGraphicsContext associated with a wxImage.
static wxGraphicsContext *	CreateFromNative (void *context)
	Creates a wxGraphicsContext from a native context.
static wxGraphicsContext *	CreateFromNativeWindow (void *window)
	Creates a wxGraphicsContext from a native window.

List of all members.

Member Function Documentation

virtual void wxGraphicsContext::BeginLayer ( wxDouble opacity ) [pure virtual]

Redirects all rendering is done into a fully transparent temporary context.

virtual void wxGraphicsContext::Clip	(	wxDouble	x,
		wxDouble	y,
		wxDouble	w,
		wxDouble	h
	)		`[pure virtual]`

Clips drawings to the specified rectangle.

virtual void wxGraphicsContext::Clip ( const wxRegion & region ) [pure virtual]

Clips drawings to the specified region.

virtual void wxGraphicsContext::ConcatTransform ( const wxGraphicsMatrix & matrix ) [pure virtual]

Concatenates the passed in transform with the current transform of this context.

static wxGraphicsContext* wxGraphicsContext::Create ( const wxPrinterDC & printerDC ) [static]

Creates a wxGraphicsContext from a wxPrinterDC.

Under GTK+, this will only work when using the GtkPrint printing backend which is available since GTK+ 2.10.

参照:: wxGraphicsRenderer::CreateContext(), Printing Under Unix (GTK+)

static wxGraphicsContext* wxGraphicsContext::Create ( const wxWindowDC & windowDC ) [static]

Creates a wxGraphicsContext from a wxWindowDC.

参照:: wxGraphicsRenderer::CreateContext()

static wxGraphicsContext* wxGraphicsContext::Create ( const wxEnhMetaFileDC & metaFileDC ) [static]

Creates a wxGraphicsContext from a wxEnhMetaFileDC.

This function, as wxEnhMetaFileDC class itself, is only available only under MSW.

参照:: wxGraphicsRenderer::CreateContext()

static wxGraphicsContext* wxGraphicsContext::Create ( wxImage & image ) [static]

Creates a wxGraphicsContext associated with a wxImage.

The image specifies the size of the context as well as whether alpha is supported (if wxImage::HasAlpha()) or not and the initial contents of the context. The image object must have a life time greater than that of the new context as the context copies its contents back to the image when it is destroyed.

Since:: 2.9.3

static wxGraphicsContext* wxGraphicsContext::Create ( wxWindow * window ) [static]

Creates a wxGraphicsContext from a wxWindow.

参照:: wxGraphicsRenderer::CreateContext()

static wxGraphicsContext* wxGraphicsContext::Create ( const wxMemoryDC & memoryDC ) [static]

Creates a wxGraphicsContext from a wxMemoryDC.

参照:: wxGraphicsRenderer::CreateContext()

virtual wxGraphicsBitmap wxGraphicsContext::CreateBitmap ( const wxBitmap & bitmap ) [pure virtual]

Creates wxGraphicsBitmap from an existing wxBitmap.

Returns an invalid wxNullGraphicsBitmap on failure.

virtual wxGraphicsBitmap wxGraphicsContext::CreateBitmapFromImage ( const wxImage & image ) [virtual]

Creates wxGraphicsBitmap from an existing wxImage.

This method is more efficient than converting wxImage to wxBitmap first and then calling CreateBitmap() but otherwise has the same effect.

Returns an invalid wxNullGraphicsBitmap on failure.

Since:: 2.9.3

virtual wxGraphicsBrush wxGraphicsContext::CreateBrush ( const wxBrush & brush ) const [virtual]

Creates a native brush from a wxBrush.

virtual wxGraphicsFont wxGraphicsContext::CreateFont	(	const wxFont &	font,
		const wxColour &	col = `*wxBLACK`
	)		const `[virtual]`

Creates a native graphics font from a wxFont and a text colour.

virtual wxGraphicsFont wxGraphicsContext::CreateFont	(	double	sizeInPixels,
		const wxString &	facename,
		int	flags = `wxFONTFLAG_DEFAULT`,
		const wxColour &	col = `*wxBLACK`
	)		const `[virtual]`

Creates a font object with the specified attributes.

The use of overload taking wxFont is preferred, see wxGraphicsRenderer::CreateFont() for more details.

Since:: 2.9.3

static wxGraphicsContext* wxGraphicsContext::CreateFromNative ( void * context ) [static]

Creates a wxGraphicsContext from a native context.

This native context must be a CGContextRef for Core Graphics, a Graphics pointer for GDIPlus, or a cairo_t pointer for cairo.

参照:: wxGraphicsRenderer::CreateContextFromNativeContext()

static wxGraphicsContext* wxGraphicsContext::CreateFromNativeWindow ( void * window ) [static]

Creates a wxGraphicsContext from a native window.

参照:: wxGraphicsRenderer::CreateContextFromNativeWindow()

wxGraphicsBrush wxGraphicsContext::CreateLinearGradientBrush	(	wxDouble	x1,
		wxDouble	y1,
		wxDouble	x2,
		wxDouble	y2,
		const wxColour &	c1,
		const wxColour &	c2
	)		const

Creates a native brush with a linear gradient.

The brush starts at (x1, y1) and ends at (x2, y2). Either just the start and end gradient colours (c1 and c2) or full set of gradient stops can be specified.

The version taking wxGraphicsGradientStops is new in wxWidgets 2.9.1.

wxGraphicsBrush wxGraphicsContext::CreateLinearGradientBrush	(	wxDouble	x1,
		wxDouble	y1,
		wxDouble	x2,
		wxDouble	y2,
		const wxGraphicsGradientStops &	stops
	)		const

Creates a native brush with a linear gradient.

The brush starts at (x1, y1) and ends at (x2, y2). Either just the start and end gradient colours (c1 and c2) or full set of gradient stops can be specified.

The version taking wxGraphicsGradientStops is new in wxWidgets 2.9.1.

virtual wxGraphicsMatrix wxGraphicsContext::CreateMatrix	(	wxDouble	a = `1.0`,
		wxDouble	b = `0.0`,
		wxDouble	c = `0.0`,
		wxDouble	d = `1.0`,
		wxDouble	tx = `0.0`,
		wxDouble	ty = `0.0`
	)		const `[virtual]`

Creates a native affine transformation matrix from the passed in values.

The default parameters result in an identity matrix.

wxGraphicsMatrix wxGraphicsContext::CreateMatrix ( const wxAffineMatrix2DBase & mat ) const

Creates a native affine transformation matrix from the passed generic one.

Since:: 2.9.4

wxGraphicsPath wxGraphicsContext::CreatePath ( ) const

Creates a native graphics path which is initially empty.

virtual wxGraphicsPen wxGraphicsContext::CreatePen ( const wxPen & pen ) const [virtual]

Creates a native pen from a wxPen.

virtual wxGraphicsBrush wxGraphicsContext::CreateRadialGradientBrush	(	wxDouble	xo,
		wxDouble	yo,
		wxDouble	xc,
		wxDouble	yc,
		wxDouble	radius,
		const wxColour &	oColor,
		const wxColour &	cColor
	)		const `[virtual]`

Creates a native brush with a radial gradient.

The brush originates at (xo, yc) and ends on a circle around (xc, yc) with the given radius.

The gradient may be specified either by its start and end colours oColor and cColor or by a full set of gradient stops.

The version taking wxGraphicsGradientStops is new in wxWidgets 2.9.1.

virtual wxGraphicsBrush wxGraphicsContext::CreateRadialGradientBrush	(	wxDouble	xo,
		wxDouble	yo,
		wxDouble	xc,
		wxDouble	yc,
		wxDouble	radius,
		const wxGraphicsGradientStops &	stops
	)		`[pure virtual]`

Creates a native brush with a radial gradient.

The brush originates at (xo, yc) and ends on a circle around (xc, yc) with the given radius.

The gradient may be specified either by its start and end colours oColor and cColor or by a full set of gradient stops.

The version taking wxGraphicsGradientStops is new in wxWidgets 2.9.1.

virtual wxGraphicsBitmap wxGraphicsContext::CreateSubBitmap	(	const wxGraphicsBitmap &	bitmap,
		wxDouble	x,
		wxDouble	y,
		wxDouble	w,
		wxDouble	h
	)		`[pure virtual]`

Extracts a sub-bitmap from an existing bitmap.

Currently this function is implemented in the native MSW and OS X versions but not when using Cairo.

void wxGraphicsContext::DisableOffset ( )

virtual void wxGraphicsContext::DrawBitmap	(	const wxGraphicsBitmap &	bmp,
		wxDouble	x,
		wxDouble	y,
		wxDouble	w,
		wxDouble	h
	)		`[pure virtual]`

Draws the bitmap.

In case of a mono bitmap, this is treated as a mask and the current brushed is used for filling.

virtual void wxGraphicsContext::DrawBitmap	(	const wxBitmap &	bmp,
		wxDouble	x,
		wxDouble	y,
		wxDouble	w,
		wxDouble	h
	)		`[pure virtual]`

Draws the bitmap.

In case of a mono bitmap, this is treated as a mask and the current brushed is used for filling.

virtual void wxGraphicsContext::DrawEllipse	(	wxDouble	x,
		wxDouble	y,
		wxDouble	w,
		wxDouble	h
	)		`[virtual]`

Draws an ellipse.

virtual void wxGraphicsContext::DrawIcon	(	const wxIcon &	icon,
		wxDouble	x,
		wxDouble	y,
		wxDouble	w,
		wxDouble	h
	)		`[pure virtual]`

Draws the icon.

virtual void wxGraphicsContext::DrawLines	(	size_t	n,
		const wxPoint2DDouble *	points,
		wxPolygonFillMode	fillStyle = `wxODDEVEN_RULE`
	)		`[virtual]`

Draws a polygon.

virtual void wxGraphicsContext::DrawPath	(	const wxGraphicsPath &	path,
		wxPolygonFillMode	fillStyle = `wxODDEVEN_RULE`
	)		`[virtual]`

Draws the path by first filling and then stroking.

virtual void wxGraphicsContext::DrawRectangle	(	wxDouble	x,
		wxDouble	y,
		wxDouble	w,
		wxDouble	h
	)		`[virtual]`

Draws a rectangle.

virtual void wxGraphicsContext::DrawRoundedRectangle	(	wxDouble	x,
		wxDouble	y,
		wxDouble	w,
		wxDouble	h,
		wxDouble	radius
	)		`[virtual]`

Draws a rounded rectangle.

void wxGraphicsContext::DrawText	(	const wxString &	str,
		wxDouble	x,
		wxDouble	y,
		wxDouble	angle
	)

Draws text at the defined position.

Parameters:

str	The text to draw.
x	The x coordinate position to draw the text at.
y	The y coordinate position to draw the text at.
angle	The angle relative to the (default) horizontal direction to draw the string.

void wxGraphicsContext::DrawText	(	const wxString &	str,
		wxDouble	x,
		wxDouble	y,
		const wxGraphicsBrush &	backgroundBrush
	)

Draws text at the defined position.

Parameters:

str	The text to draw.
x	The x coordinate position to draw the text at.
y	The y coordinate position to draw the text at.
backgroundBrush	Brush to fill the text with.

void wxGraphicsContext::DrawText	(	const wxString &	str,
		wxDouble	x,
		wxDouble	y,
		wxDouble	angle,
		const wxGraphicsBrush &	backgroundBrush
	)

Draws text at the defined position.

Parameters:

str	The text to draw.
x	The x coordinate position to draw the text at.
y	The y coordinate position to draw the text at.
angle	The angle relative to the (default) horizontal direction to draw the string.
backgroundBrush	Brush to fill the text with.

void wxGraphicsContext::DrawText	(	const wxString &	str,
		wxDouble	x,
		wxDouble	y
	)

Draws text at the defined position.

virtual void wxGraphicsContext::EnableOffset ( bool enable = true ) [virtual]

virtual void wxGraphicsContext::EndLayer ( ) [pure virtual]

Composites back the drawings into the context with the opacity given at the BeginLayer call.

virtual void wxGraphicsContext::FillPath	(	const wxGraphicsPath &	path,
		wxPolygonFillMode	fillStyle = `wxODDEVEN_RULE`
	)		`[pure virtual]`

Fills the path with the current brush.

virtual wxAntialiasMode wxGraphicsContext::GetAntialiasMode ( ) const [virtual]

Returns the current shape antialiasing mode.

virtual wxCompositionMode wxGraphicsContext::GetCompositionMode ( ) const [virtual]

Returns the current compositing operator.

virtual wxInterpolationQuality wxGraphicsContext::GetInterpolationQuality ( ) const [virtual]

Returns the current interpolation quality.

virtual void* wxGraphicsContext::GetNativeContext ( ) [pure virtual]

Returns the native context (CGContextRef for Core Graphics, Graphics pointer for GDIPlus and cairo_t pointer for cairo).

virtual void wxGraphicsContext::GetPartialTextExtents	(	const wxString &	text,
		wxArrayDouble &	widths
	)		const `[pure virtual]`

Fills the widths array with the widths from the beginning of text to the corresponding character of text.

virtual void wxGraphicsContext::GetTextExtent	(	const wxString &	text,
		wxDouble *	width,
		wxDouble *	height,
		wxDouble *	descent,
		wxDouble *	externalLeading
	)		const `[pure virtual]`

Gets the dimensions of the string using the currently selected font.

Parameters:

text	The text string to measure.
width	Variable to store the total calculated width of the text.
height	Variable to store the total calculated height of the text.
descent	Variable to store the dimension from the baseline of the font to the bottom of the descender.
externalLeading	Any extra vertical space added to the font by the font designer (usually is zero).

virtual wxGraphicsMatrix wxGraphicsContext::GetTransform ( ) const [pure virtual]

Gets the current transformation matrix of this context.

bool wxGraphicsContext::OffsetEnabled ( )

virtual void wxGraphicsContext::PopState ( ) [pure virtual]

Pops a stored state from the stack and sets the current transformation matrix to that state.

参照:: wxGraphicsContext::PopState

virtual void wxGraphicsContext::PushState ( ) [pure virtual]

Push the current state of the context's transformation matrix on a stack.

参照:: wxGraphicsContext::PopState

virtual void wxGraphicsContext::ResetClip ( ) [pure virtual]

Resets the clipping to original shape.

virtual void wxGraphicsContext::Rotate ( wxDouble angle ) [pure virtual]

Rotates the current transformation matrix (in radians).

virtual void wxGraphicsContext::Scale	(	wxDouble	xScale,
		wxDouble	yScale
	)		`[pure virtual]`

Scales the current transformation matrix.

virtual bool wxGraphicsContext::SetAntialiasMode ( wxAntialiasMode antialias ) [pure virtual]

Sets the antialiasing mode, returns true if it supported.

void wxGraphicsContext::SetBrush ( const wxBrush & brush )

Sets the brush for filling paths.

virtual void wxGraphicsContext::SetBrush ( const wxGraphicsBrush & brush ) [virtual]

Sets the brush for filling paths.

virtual bool wxGraphicsContext::SetCompositionMode ( wxCompositionMode op ) [pure virtual]

Sets the compositing operator, returns true if it supported.

virtual void wxGraphicsContext::SetFont ( const wxGraphicsFont & font ) [virtual]

Sets the font for drawing text.

void wxGraphicsContext::SetFont	(	const wxFont &	font,
		const wxColour &	colour
	)

Sets the font for drawing text.

virtual bool wxGraphicsContext::SetInterpolationQuality ( wxInterpolationQuality interpolation ) [pure virtual]

Sets the interpolation quality, returns true if it is supported.

Not implemented in Cairo backend currently.

virtual void wxGraphicsContext::SetPen ( const wxGraphicsPen & pen ) [virtual]

Sets the pen used for stroking.

void wxGraphicsContext::SetPen ( const wxPen & pen )

Sets the pen used for stroking.

virtual void wxGraphicsContext::SetTransform ( const wxGraphicsMatrix & matrix ) [pure virtual]

Sets the current transformation matrix of this context.

virtual void wxGraphicsContext::StrokeLine	(	wxDouble	x1,
		wxDouble	y1,
		wxDouble	x2,
		wxDouble	y2
	)		`[virtual]`

Strokes a single line.

virtual void wxGraphicsContext::StrokeLines	(	size_t	n,
		const wxPoint2DDouble *	beginPoints,
		const wxPoint2DDouble *	endPoints
	)		`[virtual]`

Stroke disconnected lines from begin to end points, fastest method available for this purpose.

virtual void wxGraphicsContext::StrokeLines	(	size_t	n,
		const wxPoint2DDouble *	points
	)		`[virtual]`

Stroke lines connecting all the points.

Unlike the other overload of this function, this method draws a single polyline and not a number of disconnected lines.

virtual void wxGraphicsContext::StrokePath ( const wxGraphicsPath & path ) [pure virtual]

Strokes along a path with the current pen.

virtual void wxGraphicsContext::Translate	(	wxDouble	dx,
		wxDouble	dy
	)		`[pure virtual]`

Translates the current transformation matrix.

Detailed Description

Public Member Functions

Static Public Member Functions

Member Function Documentation