NAME¶

EllipseComp, EllipseView, PSEllipse - ellipse component subject, view, and PostScript external representation

SYNOPSIS¶

#include <Unidraw/Components/ellipse.h>

DESCRIPTION¶

EllipseComp is a GraphicComp that defines an ellipse. It uses an Ellipse graphic to store its graphical attributes. EllipseView is a GraphicView for displaying the ellipse. PSEllipse is a PostScriptView that externalizes the subject's information in PostScript form.

ELLIPSECOMP PUBLIC OPERATIONS¶

EllipseComp(SF_Ellipse* = nil)

The constructor takes an optional stroked-filled ellipse that defines the attributes of the ellipse.

SF_Ellipse* GetEllipse()

Return the SF_Ellipse graphic that defines the ellipse's attributes. GetEllipse is simply a more specific form of the GetGraphic operation.

ELLIPSEVIEW PUBLIC OPERATIONS¶

EllipseView(EllipseComp* = nil)

Create an EllipseView, optionally supplying the subject.

virtual void Interpret(Command*)

EllipseView interprets AlignToGridCmd to align its center to the grid.

virtual Manipulator* CreateManipulator(

Viewer*, Event&, Transformer*, Tool*

)

virtual void InterpretManipulator(Manipulator*)

EllipseView redefines its response to manipulation with a GraphicCompTool. The user clicks to specify the center of the ellipse and then drags to vary its axes. The center and the axes will be constrained by gravity, if any.

EllipseComp* GetEllipseComp()

Return the subject.

PSELLIPSE PUBLIC OPERATIONS¶

PSEllipse(EllipseComp* = nil)

Construct a PostScript external representation of the given subject, if any.

SEE ALSO¶

GraphicComp(3U), GraphicCompTool(3U), GraphicView(3U), Grid(3U), PostScriptView(3U), align(3U), ellipses(3U)