Ellipse component subject, view, and postscript external representation
#include <Unidraw/Components/ellipse.h>
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(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(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(EllipseComp* = nil)
Construct a PostScript external representation of the given subject, if any.
GraphicComp(3U), GraphicCompTool(3U), GraphicView(3U), Grid(3U), PostScriptView(3U), align(3U), ellipses(3U)