ptolemy.vergil.unit
Class BasicEdgeHighlighter
java.lang.Object
diva.canvas.AbstractFigure
diva.canvas.AbstractFigureContainer
diva.canvas.FigureDecorator
ptolemy.vergil.unit.BasicEdgeHighlighter
- All Implemented Interfaces:
- CanvasComponent, Figure, FigureContainer, FigureSet, VisibleComponent, UserObjectContainer
public class BasicEdgeHighlighter
- extends FigureDecorator
A decorator figure that displays a highlight behind an edge. This capability
was planned for BasicHighlighter but there doesn't seem to be an easy way to
determine that an edge is being painted. This class is a stripped down
version of BasicHighlighter with the paint method modified so that it
assumes that an edge is being highlighted.
- Since:
- Ptolemy II 8.0
- Version:
- $Id: BasicEdgeHighlighter.java 57044 2010-01-27 22:41:05Z cxh $
- Author:
- Rowland R Johnson
- Accepted Rating:
- Proposed Rating:
Field Summary |
private float |
_halo
|
private java.awt.Paint |
_paint
|
private java.awt.Stroke |
_stroke
|
Constructor Summary |
BasicEdgeHighlighter()
Create a new highlighter with a default paint, "halo", and stroke. |
Methods inherited from class diva.canvas.FigureDecorator |
add, contains, figures, figuresFromBack, figuresFromFront, getBounds, getChild, getContainer, getDecoratedFigure, getFigureCount, getShape, remove, replaceChild, setChild, transform, translate |
Methods inherited from class diva.canvas.AbstractFigure |
contains, getInteractor, getLayer, getOrigin, getParent, getToolTipText, getTransformContext, getUserObject, intersects, isVisible, paint, setInteractor, setParent, setToolTipText, setUserObject, setVisible |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
_halo
private float _halo
_paint
private java.awt.Paint _paint
_stroke
private java.awt.Stroke _stroke
BasicEdgeHighlighter
public BasicEdgeHighlighter()
- Create a new highlighter with a default paint, "halo", and stroke.
hit
public boolean hit(java.awt.geom.Rectangle2D region)
- Return false. This method always returns false, as it
is meaningless (and dangerous!) to be able to hit a highlight.
- Specified by:
hit
in interface Figure
- Overrides:
hit
in class FigureDecorator
newInstance
public FigureDecorator newInstance(Figure f)
- Create a new instance of this highlighter.
- Specified by:
newInstance
in class FigureDecorator
paint
public void paint(java.awt.Graphics2D g)
- Paint the edge. This method first paints the highlight over
the contained edge by drawing a line width determined by halo. It
then paints the contained edge.
- Specified by:
paint
in interface VisibleComponent
- Overrides:
paint
in class FigureDecorator
repaint
public void repaint(DamageRegion d)
- Receive repaint notification. This method generates another
repaint() call, with a larger region, in order to ensure
that the highlight is repainted.
- Specified by:
repaint
in interface CanvasComponent
- Overrides:
repaint
in class AbstractFigureContainer
repaint
public void repaint()
- Request a repaint of the figure and highlight.
This method reads the bounding box of the highlighted
figure, and requests a repaint of that box stretched
in each direction by the halo.
- Specified by:
repaint
in interface CanvasComponent
- Overrides:
repaint
in class AbstractFigure