nsISVGRendererPathBuilder Interface Reference
[Rendering Engine Interfaces]

import "nsISVGRendererPathBuilder.idl";

Inheritance diagram for nsISVGRendererPathBuilder:

[legend]List of all members.

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Detailed Description

One of a number of interfaces (all starting with nsISVGRenderer*) to be implemented by an SVG rendering engine. See nsISVGRenderer for more details.

This interface is used by an nsISVGRendererPathGeometry object in a call to nsISVGPathGeometrySource::constructPath() to obtain a native representation of the path described by nsISVGPathGeometrySource.

Definition at line 57 of file nsISVGRendererPathBuilder.idl.

Public Member Functions

• void moveto (in float x, in float y)
• void lineto (in float x, in float y)
• void curveto (in float x, in float y, in float x1, in float y1, in float x2, in float y2)
• void arcto (in float x, in float y, in float r1, in float r2, in float angle, in boolean largeArcFlag, in boolean sweepFlag)
• void closePath (out float newX, out float newY)
• void endPath ()

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Member Function Documentation

void nsISVGRendererPathBuilder::moveto (  in float  x, in float  y )

Move current position and start new sub-path. Parameters: x  X-coordinate (untransformed). y  Y-coordinate (untransformed).

void nsISVGRendererPathBuilder::lineto (  in float  x, in float  y )

Draw a straight line from the current position to (x,y). Advance current position to (x,y). Parameters: x  X-coordinate of end point (untransformed). y  Y-coordinate of end point (untransformed).

void nsISVGRendererPathBuilder::curveto (  in float  x, in float  y, in float  x1, in float  y1, in float  x2, in float  y2 )

Draw cubic Bezier curve from the current position to (x,y) using (x1,y1) as the control point at the beginning og the curve and (x2,y2) as the control point at the end of the curve. Advance current position to (x,y). Parameters: x  X-coordinate of end point (untransformed). y  Y-coordinate of end point (untransformed). x1  X-coordinate of first control point (untransformed). y1  Y-coordinate of first control point (untransformed). x2  X-coordinate of second control point (untransformed). y2  Y-coordinate of second control point (untransformed).

void nsISVGRendererPathBuilder::arcto (  in float  x, in float  y, in float  r1, in float  r2, in float  angle, in boolean  largeArcFlag, in boolean  sweepFlag )

Draw an elliptical arc from the current position to (x,y). Advance current position to (x,y). Parameters: x  X-coordinate of end point (untransformed). y  Y-coordinate of end point (untransformed). r1  Radius of ellipse in X direction (untransformed). r2  Radius of ellipse in Y direction (untransformed). angle  Rotation of ellipse as a whole (untransformed). largeArcFlag  PR_TRUE: choose the large arc (>=180 degrees), PR_FALSE: choose the smaller arc (<=180 degrees) sweepFlag  PR_TRUE: sweep in positive angle direction, PR_FALSE: sweep in negative angle direction

void nsISVGRendererPathBuilder::closePath (  out float  newX, out float  newY )

Close the current subpath. Move current position back to beginning of subpath. Parameters: newX  X-coordinate of new current position (untransformed). newY  Y-coordinate of new current position (untransformed).

void nsISVGRendererPathBuilder::endPath (   )

End the path description. Guaranteed to be the last function called.

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The documentation for this interface was generated from the following file:

• /layout/svg/renderer/public/nsISVGRendererPathBuilder.idl

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