the antigrain based drawing context derived from a2dDrawer2D More...

#include <aggdrawer.h>

Inheritance diagram for a2dAggDrawerRgba:

Collaboration diagram for a2dAggDrawerRgba:

Public Member Functions
	a2dAggDrawerRgba (int width=0, int height=0)
	Drawer having a buffer of w pixel wide and h pixels heigh.

	a2dAggDrawerRgba (const wxSize &size)
	Drawer having a buffer of w pixel wide and h pixels height given by size.

	a2dAggDrawerRgba (const wxBitmap &bitmap)

	a2dAggDrawerRgba (const a2dAggDrawerRgba &other)
	copy constructor

wxBitmap	GetBuffer () const
	get buffer as bitmap pointer

wxImage	GetImageBuffer () const
	return wxImage which is used as buffer here

void	SetBufferSize (int w, int h)
	set buffer size to w pixel wide and h pixels heigh

wxBitmap	GetSubBitmap (wxRect sub_rect) const
	get part of the buffer given a rect

void	CopyIntoBuffer (const wxBitmap &bitm)

void	BlitBuffer (wxDC *dc, wxRect rect, const wxPoint &bufferpos=wxPoint(0, 0))
	used for blitting to a wxDC.

void	ShiftBuffer (int dxy, bool yshift)
	quick scroll over small distance

void	DrawImage (const wxImage &image, double x, double y, double width, double height, wxUint8 Opacity=255)
	Draw wxImage in world coordinates. More...

void	DrawImage (const a2dImageRGBA &image, double x, double y, double width, double height, wxUint8 Opacity=255)

Public Member Functions inherited from a2dAggDrawerBase
	a2dAggDrawerBase (int width=0, int height=0)

	a2dAggDrawerBase (const wxSize &size)
	Drawer having a buffer of w pixel wide and h pixels height given by size.

	a2dAggDrawerBase (const wxBitmap &bitmap)

	a2dAggDrawerBase (const a2dAggDrawerBase &other)
	copy constructor

bool	HasAlpha ()
	does a derived drawer have alpha support or not

void	SetPreStroke (bool preStroke)

bool	GetPreStroke ()

void	ResetStyle ()
	set a pre-defined style reseting cashed values. More...

void	SetClippingRegion (a2dVertexList *points, bool spline=false, wxPolygonFillMode fillStyle=wxODDEVEN_RULE)
	set clipping region from polygon to which everything drawn will be clipped.

virtual void	ExtendClippingRegion (a2dVertexList *points, bool spline=false, wxPolygonFillMode fillStyle=wxODDEVEN_RULE, a2dBooleanClip clipoperation=a2dCLIP_AND)
	extend clipping region with a polygon to which everything drawn will be clipped.

virtual void	ExtendAndPushClippingRegion (a2dVertexList *points, bool spline=false, wxPolygonFillMode fillStyle=wxODDEVEN_RULE, a2dBooleanClip clipoperation=a2dCLIP_AND)
	push on stack the current clipping region and extend clipping region More...

void	PopClippingRegion ()
	pop a previously pushed clipping region

void	SetClippingRegionDev (wxCoord minx, wxCoord miny, wxCoord width, wxCoord height)
	set clipping region using x y values in device coordinates

void	SetClippingRegion (double minx, double miny, double maxx, double maxy)
	set clipping region using x y values in world coordinates

void	DestroyClippingRegion ()
	set clipping region off

void	BlitBuffer (wxRect rect, const wxPoint &bufferpos=wxPoint(0, 0))
	blit given rect contents within buffer to device

virtual void	DrawCircle (double x, double y, double radius)
	Draw Circle in world coordinates. More...

void	DrawPoint (double xc, double yc)
	draw a single point

virtual void	BeginDraw ()
	start to draw on this context (used to initialize a specific drawer)

virtual void	EndDraw ()
	end drawing on this context (used to reset a specific drawer)

wxDC *	GetDeviceDC () const
	get the DC that is used for rendering

virtual void	DrawRoundedRectangle (double x, double y, double width, double height, double radius, bool pixelsize=false)
	Draw RoundedRectangle in world coordinates.

virtual void	DrawEllipse (double x, double y, double width, double height)
	Draw Ellipse in world coordinates. More...

virtual void	DrawPolygon (a2dVertexArray *points, bool spline=false, wxPolygonFillMode fillStyle=wxODDEVEN_RULE)
	Draw polygon in world coordinates using pointarray.

virtual void	DrawPolygon (const a2dVertexList *list, bool spline=false, wxPolygonFillMode fillStyle=wxODDEVEN_RULE)
	Draw polygon in world coordinates using pointlist.

virtual void	DrawPolyPolygon (a2dListOfa2dVertexList polylist, wxPolygonFillMode fillStyle=wxODDEVEN_RULE)
	draw a list of polygons ( contour clockwise becomes hole )

virtual void	DrawLines (a2dVertexArray *points, bool spline=false)
	Draw polyline in world coordinates using pointarray.

virtual void	DrawLines (const a2dVertexList *list, bool spline=false)
	Draw polyline in world coordinates using pointlist.

Public Member Functions inherited from a2dDrawer2D
	a2dDrawer2D (int width=0, int height=0)
	constructor More...

	a2dDrawer2D (const wxSize &size)
	constructor More...

	a2dDrawer2D (const a2dDrawer2D &other)
	copy constructor

virtual	~a2dDrawer2D ()
	destructor

void	SetDisplay (wxWindow *window)
	the display

void	SetPrimitiveThreshold (wxUint16 pixels, bool asrect=true)
	set at what size to stop drawing

wxUint16	GetPrimitiveThreshold () const
	get drawing threshold More...

bool	GetThresholdDrawRectangle () const
	underneath the threshold draw a rectangle instead of the real object.

void	SetPolygonFillThreshold (wxUint16 pixels)
	set threshold at which polygon is drawn filled or only outline

wxUint16	GetPolygonFillThreshold () const
	get threshold at which polygon is drawn filled or only outline

virtual wxDC *	GetRenderDC () const
	get the DC that is used for rendering

void	SetDisplayAberration (double aber)
	Set the display aberration of curved shapes. More...

double	GetDisplayAberration () const
	Returns the display aberration of curved shapes. More...

void	BlitBuffer ()
	blit whole buffer to device

void	BlitBuffer (int x, int y, int width, int height, int xbuf=0, int ybuf=0)
	blit given rect contents within buffer to device

bool	GetYaxis () const
	get y axis orientation

virtual void	SetYaxis (bool up)
	set if the Yaxis goes up or down

void	SetMappingDeviceRect (int mapx, int mapy, int mapWidth, int mapHeight, bool remap=false)
	to change the default mapping (to the complete buffer). More...

virtual void	SetMappingWidthHeight (double vx1, double vy1, double width, double height)
	Give the virtual size to be displayed, the mapping matrix will be calculated. More...

void	SetMappingWidthHeight (const a2dBoundingBox &box)
	Give the virtual size to be displayed, the mapping matrix will be calculated. More...

void	SetMappingUpp (double vx1, double vy1, double xpp, double ypp)
	Give the virtual size to be displayed, the mapping matrix will be calculated. More...

double	GetUppX () const
	return xpp Number of user units per pixel in x

double	GetUppY () const
	return ypp Number of user units per pixel in y

void	SetMinX (double x)
	Set Minimal X of the visible part in world coordinates.

void	SetMinY (double y)
	Set Minimal Y of the visible part in world coordinates.

void	SetUppX (double x)
	set world units per pixel in X

void	SetUppY (double y)
	set world units per pixel in Y

bool	GetVirtualAreaSet () const
	if the virtual area has been set already return true else false. More...

void	StartRefreshDisplayDisable ()
	when called a mapping change will result not result in a refresh of the m_display. More...

void	EndRefreshDisplayDisable ()
	see StartRefreshDisplayDisable()

bool	GetRefreshDisplayDisable () const
	see StartRefreshDisplayDisable()

int	GetWidth () const
	get buffer/device width

int	GetHeight () const
	get buffer/device height

int	GetMapWidth () const
	get mapping to device width

int	GetMapHeight () const
	get mapping to device height

int	GetMapX () const
	X mapping position in device coordinates.

int	GetMapY () const
	Y mapping position in device coordinates.

double	GetVisibleMinX () const
	get Minimal X of the visible part in world coordinates

double	GetVisibleMinY () const
	get Minimal X of the visible part in world coordinates

virtual double	GetVisibleMaxX () const
	get Maximum X of the visible part in world coordinates

virtual double	GetVisibleMaxY () const
	get Maximum Y of the visible part in world coordinates

virtual double	GetVisibleWidth () const
	get Width of visible part in world coordinates

virtual double	GetVisibleHeight () const
	get Height of visible part in world coordinates

a2dBoundingBox	GetVisibleBbox () const
	get visible area as a boundingbox in world coordinates

wxRect	ToDevice (const a2dBoundingBox &bbox)
	convert the bounding box in world coordinates to device coordinates and return that rectangle.

a2dBoundingBox	ToWorld (const wxRect &rect)
	convert the rect in device coordinates to a bounding box in world coordinates and return that boundingbox.

double	DeviceToWorldX (double x) const
	convert x from device to world coordinates

double	DeviceToWorldY (double y) const
	convert y from device to world coordinates

double	DeviceToWorldXRel (double x) const
	convert x relative from device to world coordinates More...

double	DeviceToWorldYRel (double y) const
	convert y relative from device to world coordinates More...

int	WorldToDeviceX (double x) const
	convert x from world to device coordinates

int	WorldToDeviceY (double y) const
	convert y from world to device coordinates

int	WorldToDeviceXRel (double x) const
	convert x relative from world to device coordinates More...

int	WorldToDeviceYRel (double y) const
	convert y relative from world to device coordinates More...

double	WorldToDeviceXRelNoRnd (double x) const
	convert x relative from world to device coordinates (result not rounded to integer) More...

double	WorldToDeviceYRelNoRnd (double y) const
	convert y relative from world to device coordinates (result not rounded to integer) More...

const a2dAffineMatrix &	GetMappingMatrix ()
	get the world-to-device (aka mapping) matrix

void	SetMappingMatrix (const a2dAffineMatrix &mapping)

virtual void	SetTransform (const a2dAffineMatrix &userToWorld)
	set user-to-world transform matrix. More...

const a2dAffineMatrix &	GetTransform () const
	get the user-to-world transform matrix. More...

const a2dAffineMatrix &	GetUserToDeviceTransform () const
	get matrix which transforms directly from user coordinates to device

virtual void	PushTransform ()
	Save the current user-to-world transform on the affine stack.

virtual void	PushIdentityTransform ()
	push no transform, to draw directly in device coordinates

virtual void	PushTransform (const a2dAffineMatrix &affine)
	Save the current transform on the affine stack and then multiply it by the given affine. More...

virtual void	PopTransform (void)
	Recall the previously saved user-to-world transform off the matrix stack.

void	SetSplineAberration (double aber)
	Set the detail level for spline drawing. More...

void	SetDrawerStroke (const a2dStroke &stroke)
	Used to set the current stroke. More...

a2dStroke	GetDrawerStroke () const
	get the current stroke

void	SetDrawerFill (const a2dFill &fill)
	Used to set the current fill. More...

a2dFill	GetDrawerFill () const
	get the current fill

void	SetFont (const a2dFont &font)
	set font to use for drawing text

a2dFont	GetFont () const
	get font used for drawing text

void	SetNormalizedFont (bool forceNormalizedFont)
	Use a fixed device height for drawing text.

bool	GetNormalizedFont ()
	Get setting for a fixed device height for drawing text.

void	SetSmallTextThreshold (wxUint16 pixels)

wxUint16	GetSmallTextThreshold () const
	See SetSmallTextThreshold.

virtual void	DrawVpath (const a2dVpath *path)
	Draw vector path in world coordinates.

virtual void	DrawLine (double x1, double y1, double x2, double y2)
	Draw line in world coordinates.

virtual void	DrawArc (double x1, double y1, double x2, double y2, double xc, double yc, bool chord)
	Draw Arc in world coordinates.

virtual void	DrawEllipticArc (double xc, double yc, double width, double height, double sa, double ea, bool chord)
	Draw Elliptic Arc in world coordinates.

virtual void	DrawCenterRoundedRectangle (double xc, double yc, double width, double height, double radius, bool pixelsize=false)
	Draw CenterRoundedRectangle in world coordinates. More...

void	DrawImage (const wxImage &image, double x=0, double y=0, wxUint8 Opacity=255)
	Draw wxImage in world coordinates. More...

void	SetRealScale (bool realScale)
	If true use real scale else different scale by x and y.

virtual void	DrawText (const wxString &text, double x, double y, int alignment=wxMINX\|wxMINY, bool Background=true)
	Draw text in user coordinates. More...

virtual void	DeviceDrawAnnotation (const wxString &text, wxCoord x, wxCoord y, const wxFont &font)
	text drawn in device coordinates

void	SetDrawStyle (a2dDrawStyle drawstyle)
	set drawstyle to use for drawing, More...

a2dDrawStyle	GetDrawStyle () const
	get drawstyle used for drawing.

void	SetPrintMode (bool onOff)
	to modify drawing feature when used as context for printing

void	OverRuleFixedStyle ()
	id style is FIXED, saves current style and sets style to a2dFILLED

void	ResetFixedStyle ()
	only way to reset style after SetDrawStyle( a2dFIXED*** );

void	ReStoreFixedStyle ()
	when fixed drawing style is set, it can be overruled. More...

void	SetDisableDrawing (bool disableDrawing)
	when set, all drawing functions return immediately. More...

bool	GetDisableDrawing ()
	see SetDisableDrawing()

void	GetClippingBox (double &x, double &y, double &w, double &h) const
	what is the current clipping region in world coordinates

a2dBoundingBox &	GetClippingBox ()
	what is the current clipping region in world coordinates

void	GetClippingMinMax (double &xmin, double &ymin, double &xmax, double &ymax) const
	what is the current clipping region in world coordinates

wxRect &	GetClippingBoxDev ()
	what is the current clipping region in device coordinates

void	GetClippingBoxDev (int &x, int &y, int &w, int &h) const
	what is the current clipping region in device coordinates

void	Init ()
	Initialize a drawer.

void	SetOpacityFactor (wxUint8 OpacityFactor)
	when enabling m_useOpacityFactor, this is how transparent More...

wxUint8	GetOpacityFactor ()
	see SetOpacityFactor()

void	DrawCharStrokeCb (wxChar c)
	Wrapper for DrawCharStroke. More...

void	DrawCharFreetypeCb (wxChar c)
	Wrapper for DrawCharFreetype. More...

void	DrawCharDcCb (wxChar c)
	Wrapper for DrawCharDc. More...

Protected Member Functions
void	DeviceDrawPixel (int x1, int y1, unsigned char r, unsigned char g, unsigned char b, unsigned char a)
	draw a single, unstroked pixel in device coordinates with the given color

void	DoSetDrawStyle (a2dDrawStyle drawstyle)

void	Render (bool fillColor)

virtual void	RenderGradient (bool radial)

virtual void	RenderBitmapFill ()

virtual void	RenderSetClip ()

Protected Member Functions inherited from a2dAggDrawerBase
virtual void	DrawCharDc (wxChar c)
	Draw a dc character. More...

virtual void	DrawCharStroke (wxChar c)
	Draw a stroke character. More...

virtual void	DrawCharFreetype (wxChar c)
	Draw a freetype character. More...

void	ShiftBufferInternal (int dxy, bool yshift, int bytesPerPixel)

template<class PathT >
void	_ras_add_stroked_path_xform (PathT &path, const agg::trans_affine &mtx)

agg::trans_affine	_get_agg_user_to_device_transform () const

void	DoSetActiveStroke ()
	per drawer implementation

void	DoSetActiveFill ()
	per drawer implementation

int	ToAggPath (a2dVertexArray *points, bool transform)

int	ToAggPath (const a2dVertexList *list, bool transform)

Protected Member Functions inherited from a2dDrawer2D
virtual void	SetActiveStroke (const a2dStroke &stroke)
	sync with actual API graphical context More...

virtual void	SetActiveFill (const a2dFill &fill)
	sync with actual API graphical context More...

virtual void	DoSetActiveFont (const a2dFont &font)

wxPen	ConvertActiveToPen ()
	get active stroke as wxPen

wxBrush	ConvertActiveToBrush ()
	get active fill as wxBrush

bool	IsStrokeOnly ()
	wxART2D_USE_GRAPHICS_CONTEXT More...

bool	IsStroked ()

int	ToDeviceLines (a2dVertexArray *points, a2dBoundingBox &devbbox, bool &smallPoly, bool replaceByRectangle=false)
	convert vertex array containing line and arc segments in user coordinates to device coordinate lines.

int	ToDeviceLines (const a2dVertexList *list, a2dBoundingBox &devbbox, bool &smallPoly, bool replaceByRectangle=false)
	convert vertex list containing line and arc segments in user coordinates to device coordinate lines.

void	SetMappingUpp (double x, double y, double wx, double wy, double vx1, double vy1, double xpp, double ypp)
	Given the rectangle in world coordinate to be displayed, update the mappingmatrix. More...

unsigned int	ConvertSplinedPolygon2 (unsigned int n)
	converts internal device points array to spline. Returns new number of points.

unsigned int	ConvertSplinedPolyline2 (unsigned int n)
	converts internal device points array to spline. Returns new number of points.

bool	Clipping (double &x1, double &y1, double &x2, double &y2)
	clip lines

int	GetClipCode (double x, double y)
	clip code of a point

void	FillPolygon (int n, wxRealPoint points[])
	Used for filling with Gradient fill style.

bool	MoveUp (int n, wxRealPoint points[], double horline, int &index, int direction)
	Used for filling with Gradient fill style.

void	DetectCriticalPoints (int n, wxRealPoint points[])
	Used for filling with Gradient fill style.

void	DrawTextGeneric (const wxString &text, double x, double y, void(a2dDrawer2D::*drawchar)(wxChar))

virtual void	DrawCharUnknown (wxChar c)
	Draw a cross instead of a character.

virtual void	DrawTextUnknown (const wxString &text, double x, double y, bool words=false)
	Draw a cross, indicating an unsupported font type for this drawer. More...

virtual void	DrawTextStroke (const wxString &text, double x, double y)
	Draw text in user coordinates, based on a stroke font. More...

virtual void	DrawTextFreetype (const wxString &text, double x, double y)
	Draw text in world coordinates, based on a freetype font .

virtual void	DrawTextDc (const wxString &text, double x, double y)
	Draw text in user coordinates, based on a dc font .

wxPoint *	_convertToIntPointCache (int n, wxRealPoint *pts)
	Convert double points to integer coords in the point cache and return pointer.

virtual void	DeviceDrawPolygon (unsigned int n, bool spline, wxPolygonFillMode fillStyle)
	draw an internal polygon in device coordinates

virtual void	DeviceDrawLines (unsigned int n, bool spline)
	draw an internal polyline in device coordinates

virtual void	DeviceDrawLine (double x1, double y1, double x2, double y2)
	draw in pixels

virtual void	DeviceDrawHorizontalLine (int x1, int y1, int x2, bool use_stroke_color)
	Draw a pixel-width, unstroked horizontal line in device (pixel) coordinates. More...

virtual void	DeviceDrawVerticalLine (int x1, int y1, int y2, bool use_stroke_color)
	Draw a pixel-width, unstroked vertical line in device (pixel) coordinates. More...

Protected Attributes
a2dImageRGBA	m_buffer

bool	m_needbufferupdate

Protected Attributes inherited from a2dAggDrawerBase
bool	m_preStroke

wxRegion	m_clip

wxClientDC *	m_deviceDC

bool	m_ownsBuffer

RasterizerType	m_rasterizer

agg::comp_op_e	m_blendMode

double	m_strokewidth

double	m_strokewidthDev

a2dStrokeStyle	m_style

agg::line_join_e	m_join

agg::line_cap_e	m_cap

wxImage	m_pattern

agg::rendering_buffer	m_pattern_rbuf

agg::scanline_u8	m_sl

agg::path_storage	m_path

double	m_fillGradientD1

double	m_lineGradientD1

double	m_fillGradientD2

double	m_lineGradientD2

GradientArray	m_fillGradient

GradientArray	m_lineGradient

agg::trans_affine	m_fillGradientMatrix

agg::trans_affine	m_lineGradientMatrix

agg::span_interpolator_linear	m_fillGradientInterpolator

agg::span_interpolator_linear	m_lineGradientInterpolator

agg::gradient_x	m_linearGradientFunction

agg::gradient_circle	m_radialGradientFunction

unsigned char *	m_pdata

Protected Attributes inherited from a2dDrawer2D
bool	m_frozen
	buffer updating activity possible or not

bool	m_mouseevents
	enable/ disable mouse events handling by canvas

a2dStroke	m_currentstroke
	used while rendering

a2dFill	m_currentfill
	used while rendering

a2dStroke	m_activestroke
	used while rendering

a2dFill	m_activefill
	used while rendering

a2dFont	m_currentfont
	current font set

a2dDrawStyle	m_drawstyle
	drawstyle (like invert mode)

a2dStroke	m_fixStrokeRestore
	used to restore an overruled fix style

a2dFill	m_fixFillRestore
	used to restore an overruled fix style

a2dDrawStyle	m_fixDrawstyle
	used to restore an overruled fix style

bool	m_yaxis
	up or down

double	m_virt_minX
	virtual coordinates box its miminum X

double	m_virt_minY
	virtual coordinates box its miminum Y

double	m_xpp
	user units per pixel in x

double	m_ypp
	user units per pixel in y

bool	m_fixedStyledOverRuled
	keep track of this

bool	m_forceNormalizedFont
	up or down

wxUint16	m_smallTextThreshold

bool	m_pendingSig_changedZoom
	When display refresh is on hold, this triggers a delayed zoom signal, when released.

a2dVertexList	m_tempPoints
	used internally in some methods to avoid constructor, new, ...

wxUint8	m_StrokeOpacityCol1
	active stroke alpha

wxUint8	m_StrokeOpacityCol2
	active stroke alpha

wxUint8	m_FillOpacityCol1
	active fill alpha

wxUint8	m_FillOpacityCol2
	active fill alpha

unsigned char	m_colour1redStroke
	active stroke colours

unsigned char	m_colour1greenStroke
	active stroke colours

unsigned char	m_colour1blueStroke
	active stroke colours

unsigned char	m_colour1redFill
	active fill colours

unsigned char	m_colour1greenFill
	active fill colours

unsigned char	m_colour1blueFill
	active fill colours

unsigned char	m_colour2redFill
	active fill colours

unsigned char	m_colour2greenFill
	active fill colours

unsigned char	m_colour2blueFill
	active fill colours

a2dAffineMatrix	m_worldtodevice
	world to device coordinate mapping

a2dAffineMatrix	m_usertoworld
	pointer to current user-to-world transform matrix

a2dAffineMatrix	m_usertodevice
	pointer to current user-to-device transform matrix ( so includes mapping matrix )

bool	m_virtualarea_set
	is the virtual area set already (used during startup)

int	m_refreshDisplay
	see SetRefreshDisplay()

int	m_width
	device size width

int	m_height
	device size height

int	m_mapX
	X mapping position in device coordinates.

int	m_mapY
	Y mapping position in device coordinates.

int	m_mapWidth
	width for mapping in device coordinates

int	m_mapHeight
	height for mapping in device coordinates

a2dCriticalPointList	m_CRlist
	critical point list for polygon

a2dAETList	m_AETlist
	scanline list of intersections with polygon

std::vector< wxPoint >	m_cpointsInt
	cached array for containing transformed device coordinates (integer)

std::vector< wxRealPoint >	m_cpointsDouble
	cached array for containing transformed device coordinates (double)

double	m_splineaberration
	accuracy of spline

a2dClipRegionList	m_clipregionlist
	pushed clipping regions

double	m_displayaberration
	accuracy of arc segment calculation etc. in device coordinates

wxUint16	m_drawingthreshold
	object smaller than this value will not be rendered

wxUint16	m_polygonFillThreshold
	polygon smaller than this value will be rendered non filled.

bool	m_asrectangle
	underneath the threshold draw rectangles if true else nothing

a2dBoundingBox	m_clipboxworld
	current clipping area in world coordinates

wxRect	m_clipboxdev
	current clipping area in device coordinates

int	m_beginDraw_endDraw
	counter for BeginDraw EndDraw calls

wxWindow *	m_display
	view its window.

bool	m_disableDrawing
	all drawing is disabled when this is true

wxUint8	m_OpacityFactor
	opacity will be the one set, derived by this

std::vector< a2dAffineMatrix >	m_affineStack
	Affine transform stack. More...

bool	m_realScale
	If true use real scale else different scale by x and y.

bool	m_printingMode
	can be used to modify drawing features when used as context for printing

Additional Inherited Members
Static Public Attributes inherited from a2dDrawer2D
static const a2dSignal	sig_changedZoom = wxNewId()

Detailed Description

the antigrain based drawing context derived from a2dDrawer2D

This drawing context does anti aliased and alpha drawing. And uses a a2dImageRGBA as a buffer. A strong feature is the ability to draw (rotated) wxImage's

Definition at line 674 of file aggdrawer.h.

Constructor & Destructor Documentation

a2dAggDrawerRgba::a2dAggDrawerRgba ( const wxBitmap & bitmap )

bitmap is converted to image on which you can draw. Use GetBuffer() to get a bitmap back.

Definition at line 1922 of file aggdrawer.cpp.

Member Function Documentation

void a2dAggDrawerRgba::DrawImage	(	const wxImage &	image,
		double	x,
		double	y,
		double	width,
		double	height,
		wxUint8	Opacity = `255`
	)

virtual

Draw wxImage in world coordinates.

Draw the wxImage to the screen in such a manner that the image is mapped into the rectangle defined by points (x-width/2,y-width/2) and (x+width/2,y+height/2) in world coordinates, with the center of the image at (x,y).

Parameters

image	image to draw
x	world x position of center of image
y	world y position of center of image
width	width in world coordinates to map width of image to
height	height in world coordinates to map height of image to

Implements a2dDrawer2D.

Definition at line 2004 of file aggdrawer.cpp.

The documentation for this class was generated from the following files:

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation