org.tigris.gef.presentation
Class ArrowHead

java.lang.Object
  org.tigris.gef.presentation.ArrowHead

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

ArrowHeadComposite, ArrowHeadDiamond, ArrowHeadGreater, ArrowHeadHalfTriangle, ArrowHeadNone, ArrowHeadQualifier, ArrowHeadTriangle

public abstract class ArrowHead
extends java.lang.Object
implements java.io.Serializable

Abstract class to draw arrow heads on the ends of FigEdges.

See Also:

Serialized Form

Field Summary

protected int	arrow_height
protected int	arrow_width
protected java.awt.Color	arrowFillColor
protected java.awt.Color	arrowLineColor

Constructor Summary

ArrowHead()

ArrowHead(java.awt.Color line, java.awt.Color fill)

Method Summary

double	dist(double dx, double dy)
double	dist(int x0, int y0, int x1, int y1)
java.awt.Color	getFillColor()
java.awt.Color	getLineColor()
int	getLineLength(java.awt.Point one, java.awt.Point two) return the approximate arc length of the path in pixel units
abstract void	paint(java.awt.Graphics g, java.awt.Point start, java.awt.Point end)
void	paintAtHead(java.awt.Graphics g, Fig path)
void	paintAtTail(java.awt.Graphics g, Fig path)
java.awt.Point	pointAlongLine(java.awt.Point one, java.awt.Point two, int dist) return a point that is dist pixels along the path
void	setFillColor(java.awt.Color newColor)
void	setLineColor(java.awt.Color newColor)

Methods inherited from class java.lang.Object

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

Field Detail

arrow_width

protected int arrow_width

arrow_height

protected int arrow_height

arrowLineColor

protected java.awt.Color arrowLineColor

arrowFillColor

protected java.awt.Color arrowFillColor

Constructor Detail

ArrowHead

public ArrowHead()

ArrowHead

public ArrowHead(java.awt.Color line,
                 java.awt.Color fill)

Method Detail

getLineColor

public java.awt.Color getLineColor()

setLineColor

public void setLineColor(java.awt.Color newColor)

getFillColor

public java.awt.Color getFillColor()

setFillColor

public void setFillColor(java.awt.Color newColor)

paint

public abstract void paint(java.awt.Graphics g,
                           java.awt.Point start,
                           java.awt.Point end)

paintAtHead

public void paintAtHead(java.awt.Graphics g,
                        Fig path)

paintAtTail

public void paintAtTail(java.awt.Graphics g,
                        Fig path)

getLineLength

public int getLineLength(java.awt.Point one,
                         java.awt.Point two)

return the approximate arc length of the path in pixel units

pointAlongLine

public java.awt.Point pointAlongLine(java.awt.Point one,
                                     java.awt.Point two,
                                     int dist)

return a point that is dist pixels along the path

dist

public double dist(int x0,
                   int y0,
                   int x1,
                   int y1)

dist

public double dist(double dx,
                   double dy)