GPortOutlineInfo Class Reference

#include <GPortOutlineInfo.h>

Inheritance diagram for GPortOutlineInfo:

Public Member Functions
	GPortOutlineInfo (IGraphicsPort *gPort)
	~GPortOutlineInfo ()
virtual void	BeginPath ()
virtual void	EndPath ()
virtual void	moveto (const PMReal &x, const PMReal &y)
virtual void	lineto (const PMReal &x, const PMReal &y)
virtual void	curveto (const PMReal &x1, const PMReal &y1, const PMReal &x2, const PMReal &y2, const PMReal &x3, const PMReal &y3)
virtual void	closepath ()

Detailed Description

Concrete implementation of IOutlineInfo. Intended to be used as a glue class for converting information from IPathGeometry and other interfaces that use IOutlineInfo into calls on an IGraphicsPort.

See Also

IOutlineInfo

IGraphicsPort

IPathGeometry

Constructor & Destructor Documentation

GPortOutlineInfo::GPortOutlineInfo

(

IGraphicsPort *

gPort

)

Constructs a GPortOutlineInfo on the specified IGraphicsPort.

Note: Calls AddRef on the IGraphicsPort

Parameters

gPort

IN The graphics port on which path operations are made

GPortOutlineInfo::~GPortOutlineInfo

(

)

Destructs this GPortOutlineInfo.

Note: Calls Release on its IGraphicsPort

Member Function Documentation

virtual void GPortOutlineInfo::BeginPath ( )

virtual

Begins a new path. Called before any of the other methods is called.

Implements IOutlineInfo.

virtual void GPortOutlineInfo::closepath ( )

virtual

Closes the current subpath. If the first point in the subpath (defined by a prior call to moveto) does not correspond to the current point, this call will implicitly add a line segment from the current point to the first point in the subpath.

The current point is undefined after a call to closepath. The caller must call moveto to start a new subpath and establish the current point before calling either lineto, curveto, or closepath.

Implements IOutlineInfo.

virtual void GPortOutlineInfo::curveto ( const PMReal &  x1, const PMReal &  y1, const PMReal &  x2, const PMReal &  y2, const PMReal &  x3, const PMReal &  y3  )

virtual

Adds a new bezier curve segment to the current subpath, using four control points. The current point in user space at the time the call is made is used as the starting point for the curve. (x1, y1) and (x2, y2) are used as control points defining the degree of curvature and magnitude of the curve, and (x3, y3) defines the end point. The current point is implicitly set to (x3, y3).

Parameters

x1	IN The x-component for the first control point of the new bezier segment
y1	IN The y-component for the first control point of the new bezier segment
x2	IN The x-component for the second control point of the new bezier segment
y2	IN The y-component for the second control point of the new bezier segment
x3	IN The x-component for the end point of the new bezier segment
y3	IN The y-component for the end point of the new bezier segment

Implements IOutlineInfo.

virtual void GPortOutlineInfo::EndPath ( )

virtual

Ends a path begun by BeginPath.

Implements IOutlineInfo.

virtual void GPortOutlineInfo::lineto ( const PMReal &  x, const PMReal &  y  )

virtual

Adds a line segment to the current subpath. The beginning of the segment is the current point in user space at the time the call is made. The end is (x, y). Implicitly sets the current point to (x, y).

Parameters

x	IN The x-component for the end point of the new line segment
y	IN The y-component for the end point of the new line segment

Implements IOutlineInfo.

virtual void GPortOutlineInfo::moveto ( const PMReal &  x, const PMReal &  y  )

virtual

Starts a new subpath. The current point in user space is set to (x, y).

Parameters

x	IN The x-component of the new current point
y	IN The y-component of the new current point

Implements IOutlineInfo.