a2dBlindDrawer2D Class Reference

class draws nothing, still can be used as a drawing context. More...

#include <drawer2d.h>

Inheritance diagram for a2dBlindDrawer2D:

Collaboration diagram for a2dBlindDrawer2D:

List of all members.

Public Member Functions

a2dBlindDrawer2D (int w=100, int h=100)

Drawer having a buffer of w pixel wide and h pixels heigh.

a2dBlindDrawer2D (const wxSize &size)

Drawer having a buffer of w pixel wide and h pixels height given by size.

void SetBufferSize (int w, int h)

set buffer size to w pixel wide and h pixels heigh

wxBitmap GetBuffer () const

Return the buffer as a bitmap.

wxBitmap GetSubBitmap (wxRect sub_rect) const

get part of the buffer given a rect

virtual ~a2dBlindDrawer2D ()

destructor

a2dBlindDrawer2D (const a2dBlindDrawer2D &other)

copy constructor

a2dBlindDrawer2D (const a2dDrawer2D &other)

virtual void BlitBuffer (wxRect rect, const wxPoint &bufferpos=wxPoint(0, 0))

blit given rect contents within buffer to device

virtual void BlitBuffer (wxDC *dc, wxRect rect, const wxPoint &bufferpos=wxPoint(0, 0))

used for blitting to a wxDC.

void ResetStyle ()

set a pre-defined style reseting cashed values.

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)

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

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 DrawPolygon (a2dVertexArray *points, bool spline=false, wxPolygonFillMode fillStyle=wxODDEVEN_RULE)

Draw polygon in world coordinates using pointarray.

void DrawPolygon (const a2dVertexList *list, bool spline=false, wxPolygonFillMode fillStyle=wxODDEVEN_RULE)

Draw polygon in world coordinates using pointlist.

void DrawLines (a2dVertexArray *points, bool spline=false)

Draw polyline in world coordinates using pointarray.

void DrawLines (const a2dVertexList *list, bool spline=false)

Draw polyline in world coordinates using pointlist.

void DrawLine (double x1, double y1, double x2, double y2)

Draw line in world coordinates.

void DrawArc (double x1, double y1, double x2, double y2, double xc, double yc, bool chord)

Draw Arc in world coordinates.

void DrawEllipticArc (double xc, double yc, double width, double height, double sa, double ea, bool chord)

Draw Elliptic Arc in world coordinates.

void DrawRoundedRectangle (double x, double y, double width, double height, double radius, bool pixelsize=false)

Draw RoundedRectangle in world coordinates.

void DrawCenterRoundedRectangle (double xc, double yc, double width, double height, double radius, bool pixelsize=false)

Draw CenterRoundedRectangle in world coordinates.

void DrawCircle (double x, double y, double radius)

Draw Circle in world coordinates.

void DrawEllipse (double x, double y, double width, double height)

Draw Ellipse in world coordinates.

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

Draw wxImage in world coordinates.

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

void DrawVpath (const a2dVpath *path)

Draw vector path in world coordinates.

void DrawPoint (double xc, double yc)

draw a single point

void DeviceDrawAnnotation (const wxString &text, wxCoord x, wxCoord y, const wxFont &font)

text drawn in device coordinates

Protected Member Functions

virtual void DoSetDrawStyle (a2dDrawStyle drawstyle)

void DoSetActiveStroke ()

per drawer implementation

void DoSetActiveFill ()

per drawer implementation

Detailed Description

class draws nothing, still can be used as a drawing context.

In cases where a drawing context is not really needed to draw, but one still wants to follow the same matrix multiplication as if drawn, this class can be used. It can simplifies the code a lot if there is a dummy drawer instead of non at all, which would require testing for that. A dummy drawer can be used in all cases where normally a real drawer is used.

Definition at line 1218 of file drawer2d.h.

Member Function Documentation

void a2dBlindDrawer2D::SetBufferSize	(	int	w,
		int	h
	)			`[virtual]`

set buffer size to w pixel wide and h pixels heigh

Remarks:: SetMappingDeviceRect() is NOT reset.

Implements a2dDrawer2D.

Definition at line 3034 of file drawer2d.cpp.

void a2dBlindDrawer2D::ResetStyle ( ) [virtual]

set a pre-defined style reseting cashed values.

setting a style ( stroke fill ) for a a2dDrawer2D, takes into account the style that is currently set for it. If the style being set is equal to the current style, internal nothing is done for the underlying device. Of course this only works if everyone obeys the rules. Routines not using a2dDrawer2D as an entry to device, may fool this trick. Therefore to be sure to start with a proper a2dDrawer2D, first call this function. It will make the a2dDrawer2D style the actual style used on the device.

Reimplemented from a2dDrawer2D.

Definition at line 3067 of file drawer2d.cpp.

void a2dBlindDrawer2D::ExtendAndPushClippingRegion	(	a2dVertexList *	points,
		bool	spline = `false`,
		wxPolygonFillMode	fillStyle = `wxODDEVEN_RULE`,
		a2dBooleanClip	clipoperation = `a2dCLIP_AND`
	)			`[virtual]`

push on stack the current clipping region and extend clipping region

The clipping region will be extended with a polygon to which everything drawn will be clipped.

Implements a2dDrawer2D.

Definition at line 3049 of file drawer2d.cpp.

void a2dBlindDrawer2D::DrawCenterRoundedRectangle	(	double	xc,
		double	yc,
		double	width,
		double	height,
		double	radius,
		bool	pixelsize = `false`
	)			`[virtual]`

Draw CenterRoundedRectangle in world coordinates.

Draws a rounded rectangle centered at the point (xc,yc) in world coordinates.

Reimplemented from a2dDrawer2D.

Definition at line 3117 of file drawer2d.cpp.

void a2dBlindDrawer2D::DrawCircle	(	double	x,
		double	y,
		double	radius
	)			`[virtual]`

Draw Circle in world coordinates.

Remarks:: circle gets rotates and scaled etc. in x and y when required.

Reimplemented from a2dDrawer2D.

Definition at line 3125 of file drawer2d.cpp.

void a2dBlindDrawer2D::DrawEllipse	(	double	x,
		double	y,
		double	width,
		double	height
	)			`[virtual]`

Draw Ellipse in world coordinates.

Remarks:: ellipse gets rotates and scaled etc. in x and y when required.

Reimplemented from a2dDrawer2D.

Definition at line 3129 of file drawer2d.cpp.

void a2dBlindDrawer2D::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 3081 of file drawer2d.cpp.

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


Public Member Functions
	a2dBlindDrawer2D (int w=100, int h=100)
	Drawer having a buffer of w pixel wide and h pixels heigh.
	a2dBlindDrawer2D (const wxSize &size)
	Drawer having a buffer of w pixel wide and h pixels height given by size.
void	SetBufferSize (int w, int h)
	set buffer size to w pixel wide and h pixels heigh
wxBitmap	GetBuffer () const
	Return the buffer as a bitmap.
wxBitmap	GetSubBitmap (wxRect sub_rect) const
	get part of the buffer given a rect
virtual	~a2dBlindDrawer2D ()
	destructor
	a2dBlindDrawer2D (const a2dBlindDrawer2D &other)
	copy constructor
	a2dBlindDrawer2D (const a2dDrawer2D &other)
virtual void	BlitBuffer (wxRect rect, const wxPoint &bufferpos=wxPoint(0, 0))
	blit given rect contents within buffer to device
virtual void	BlitBuffer (wxDC *dc, wxRect rect, const wxPoint &bufferpos=wxPoint(0, 0))
	used for blitting to a wxDC.
void	ResetStyle ()
	set a pre-defined style reseting cashed values.
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)
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
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	DrawPolygon (a2dVertexArray *points, bool spline=false, wxPolygonFillMode fillStyle=wxODDEVEN_RULE)
	Draw polygon in world coordinates using pointarray.
void	DrawPolygon (const a2dVertexList *list, bool spline=false, wxPolygonFillMode fillStyle=wxODDEVEN_RULE)
	Draw polygon in world coordinates using pointlist.
void	DrawLines (a2dVertexArray *points, bool spline=false)
	Draw polyline in world coordinates using pointarray.
void	DrawLines (const a2dVertexList *list, bool spline=false)
	Draw polyline in world coordinates using pointlist.
void	DrawLine (double x1, double y1, double x2, double y2)
	Draw line in world coordinates.
void	DrawArc (double x1, double y1, double x2, double y2, double xc, double yc, bool chord)
	Draw Arc in world coordinates.
void	DrawEllipticArc (double xc, double yc, double width, double height, double sa, double ea, bool chord)
	Draw Elliptic Arc in world coordinates.
void	DrawRoundedRectangle (double x, double y, double width, double height, double radius, bool pixelsize=false)
	Draw RoundedRectangle in world coordinates.
void	DrawCenterRoundedRectangle (double xc, double yc, double width, double height, double radius, bool pixelsize=false)
	Draw CenterRoundedRectangle in world coordinates.
void	DrawCircle (double x, double y, double radius)
	Draw Circle in world coordinates.
void	DrawEllipse (double x, double y, double width, double height)
	Draw Ellipse in world coordinates.
void	DrawImage (const wxImage &image, double x, double y, double width, double height, wxUint8 Opacity=255)
	Draw wxImage in world coordinates.
void	DrawImage (const a2dImageRGBA &image, double x, double y, double width, double height, wxUint8 Opacity=255)
void	DrawVpath (const a2dVpath *path)
	Draw vector path in world coordinates.
void	DrawPoint (double xc, double yc)
	draw a single point
void	DeviceDrawAnnotation (const wxString &text, wxCoord x, wxCoord y, const wxFont &font)
	text drawn in device coordinates
Protected Member Functions
virtual void	DoSetDrawStyle (a2dDrawStyle drawstyle)
void	DoSetActiveStroke ()
	per drawer implementation
void	DoSetActiveFill ()
	per drawer implementation