Package edu.cnu.mdi.graphics.rubberband

Class AClickRubberband

java.lang.Object

edu.cnu.mdi.graphics.rubberband.ARubberband

edu.cnu.mdi.graphics.rubberband.AClickRubberband

All Implemented Interfaces:

MouseListener, MouseMotionListener, EventListener

Direct Known Subclasses:

ALineClickRubberband, APolyClickRubberband, RubberRadArc

public abstract class AClickRubberband
extends ARubberband

Minimal base for click-collected gestures. No policy switches; subclasses decide how to accumulate/end.

Nested Class Summary

Nested classes/interfaces inherited from class edu.cnu.mdi.graphics.rubberband.ARubberband

ARubberband.Policy

Field Summary

Fields inherited from class edu.cnu.mdi.graphics.rubberband.ARubberband

active, backgroundImage, component, currentPt, fillColor, highlightColor1, highlightColor2, image, policy, poly, rubberbanded, started, startPt, tempPoly

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AClickRubberband(Component component, IRubberbanded rubberbanded, ARubberband.Policy policy)

Method Summary

Modifier and Type	Method	Description
protected final boolean	ensureStarted(Point p)	Ensure the gesture has started and tempPoly exists, seeded with the start point.
final boolean	isClickBased()	True if this rubberband collects points on click rather than drag.
void	mouseMoved(MouseEvent e)

Methods inherited from class edu.cnu.mdi.graphics.rubberband.ARubberband

addPoint, begin, cancel, computeVertices, draw, endRubberbanding, getCurrent, getRubberbandBounds, getRubberbandVertices, getStart, isActive, isGestureValid, modifyCurrentPoint, mouseClicked, mouseDragged, mouseEntered, mouseExited, mousePressed, mouseReleased, setActive, setCurrent, setFillColor, setHighlightColor1, setHighlightColor2, startRubberbanding

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

AClickRubberband

protected AClickRubberband(Component component,
 IRubberbanded rubberbanded,
 ARubberband.Policy policy)

Method Details

isClickBased

public final boolean isClickBased()

Description copied from class: ARubberband

True if this rubberband collects points on click rather than drag. Used by toolbars to determine when to call isGestureValid() and getRubberbandVertices().

Overrides:

isClickBased in class ARubberband

Returns:

true if this rubberband collects points on click rather than drag, false if it is drag-based.

ensureStarted

protected final boolean ensureStarted(Point p)

Ensure the gesture has started and tempPoly exists, seeded with the start point.

A no-op (returning true immediately) if tempPoly is already non-null. Otherwise delegates to ARubberband.startRubberbanding(Point), which always sets started = true for a non-null point (it has no rejection path), so this method currently always returns true. The boolean return is kept as a defensive contract in case a future startRubberbanding override introduces a genuine rejection path.

Parameters:

p - the point to seed the gesture with; must not be null

Returns:

true once the gesture has started and tempPoly is non-null

mouseMoved

public void mouseMoved(MouseEvent e)

Specified by:

mouseMoved in interface MouseMotionListener

Overrides:

mouseMoved in class ARubberband