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org.apache.batik.gvt
Class MarkerShapePainter  

java.lang.Object
  org.apache.batik.gvt.MarkerShapePainter

All Implemented Interfaces:

ShapePainter

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public class MarkerShapePainter

extends java.lang.Object

implements ShapePainter

A shape painter that can be used to paint markers on a shape.

Version:

$Id: MarkerShapePainter.java,v 1.17 2005/03/27 08:58:34 cam Exp $

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Field Summary
private  java.awt.geom.Rectangle2D	dGeometryBounds           Internal Cache: Geometry bounds
private  java.awt.geom.Rectangle2D	dPrimitiveBounds           Internal Cache: Primitive bounds
protected  Marker	endMarker           End Marker
private  ProxyGraphicsNode	endMarkerProxy           End marker proxy.
protected  org.apache.batik.ext.awt.geom.ExtendedShape	extShape           The Shape to be painted.
private  CompositeGraphicsNode	markerGroup           Contains the various marker proxies.
protected  Marker	middleMarker           Middle Marker
private  ProxyGraphicsNode[]	middleMarkerProxies           Middle marker proxy.
protected  Marker	startMarker           Start Marker
private  ProxyGraphicsNode	startMarkerProxy           Start marker proxy.

 

Constructor Summary

MarkerShapePainter(java.awt.Shape shape)           Constructs a new MarkerShapePainter that can be used to markers on top of a shape.

 

Method Summary
protected  ProxyGraphicsNode	buildEndMarkerProxy()           Builds a proxy GraphicsNode for the input Marker to be drawn at the end position.
protected  void	buildMarkerGroup()           Builds a new marker group with the current set of markers.
protected  ProxyGraphicsNode[]	buildMiddleMarkerProxies()           Builds a proxy GraphicsNode for the input Marker to be drawn at the middle positions
protected  ProxyGraphicsNode	buildStartMarkerProxy()           Builds a proxy GraphicsNode for the input Marker to be drawn at the start position
private  double[]	computeInSlope(double[] prev, int prevSegType, double[] curr, int currSegType)           Returns dx/dy for the in slope.
private  java.awt.geom.AffineTransform	computeMarkerTransform(Marker marker, java.awt.geom.Point2D markerPosition, double rotation)           Computes the transform for the input marker, so that it is positioned at the given position with the specified rotation
private  double[]	computeOutSlope(double[] curr, int currSegType, double[] next, int nextSegType)           Returns dx/dy for the out slope.
private  double	computeRotation(double[] prev, int prevSegType, double[] curr, int currSegType, double[] next, int nextSegType)           Returns the rotation according to the specified parameters.
private  ProxyGraphicsNode	createMiddleMarker(double[] prev, int prevSegType, double[] curr, int currSegType, double[] next, int nextSegType)           Creates a ProxyGraphicsNode for a middle marker.
Marker	getEndMarker()           Returns the marker that shall be drawn at the last vertex of the given shape.
org.apache.batik.ext.awt.geom.ExtendedShape	getExtShape()           Gets the Shape this shape painter is associated with as an Extended Shape.
Marker	getMiddleMarker()           Returns the marker that shall be drawn at every other vertex (not the first or the last one) of the given shape.
java.awt.Shape	getPaintedArea()           Returns the area painted by this shape painter.
java.awt.geom.Rectangle2D	getPaintedBounds2D()           Returns the bounds of the area painted by this shape painter
protected  java.awt.geom.Point2D	getSegmentTerminatingPoint(double[] coords, int segType)           Extracts the terminating point, depending on the segment type.
java.awt.Shape	getSensitiveArea()           Returns the area covered by this shape painter (even if not painted).
java.awt.geom.Rectangle2D	getSensitiveBounds2D()           Returns the bounds of the area covered by this shape painte (even if not painted).
java.awt.Shape	getShape()           Gets the Shape this shape painter is associated with.
Marker	getStartMarker()           Returns the marker that shall be drawn at the first vertex of the given shape.
boolean	inPaintedArea(java.awt.geom.Point2D pt)           Returns true if pt is in the area painted by this shape painter
boolean	inSensitiveArea(java.awt.geom.Point2D pt)           Returns true if pt is in the sensitive area.
double[]	normalize(double[] v)           Normalizes the input vector.
void	paint(java.awt.Graphics2D g2d)           Paints the specified shape using the specified Graphics2D.
void	setEndMarker(Marker endMarker)           Sets the marker that shall be drawn at the last vertex of the given shape.
void	setMiddleMarker(Marker middleMarker)           Sets the marker that shall be drawn at every other vertex (not the first or the last one) of the given shape.
void	setShape(java.awt.Shape shape)           Sets the Shape this shape painter is associated with.
void	setStartMarker(Marker startMarker)           Sets the marker that shall be drawn at the first vertex of the given shape.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

extShape

protected org.apache.batik.ext.awt.geom.ExtendedShape extShape

The Shape to be painted.

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startMarker

protected Marker startMarker

Start Marker

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middleMarker

protected Marker middleMarker

Middle Marker

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endMarker

protected Marker endMarker

End Marker

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startMarkerProxy

private ProxyGraphicsNode startMarkerProxy

Start marker proxy.

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middleMarkerProxies

private ProxyGraphicsNode[] middleMarkerProxies

Middle marker proxy.

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endMarkerProxy

private ProxyGraphicsNode endMarkerProxy

End marker proxy.

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markerGroup

private CompositeGraphicsNode markerGroup

Contains the various marker proxies.

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dPrimitiveBounds

private java.awt.geom.Rectangle2D dPrimitiveBounds

Internal Cache: Primitive bounds

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dGeometryBounds

private java.awt.geom.Rectangle2D dGeometryBounds

Internal Cache: Geometry bounds

Constructor Detail

MarkerShapePainter

public MarkerShapePainter(java.awt.Shape shape)

Constructs a new MarkerShapePainter that can be used to markers on top of a shape.

Method Detail

paint

public void paint(java.awt.Graphics2D g2d)

Paints the specified shape using the specified Graphics2D.

Specified by:

paint in interface ShapePainter

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getPaintedArea

public java.awt.Shape getPaintedArea()

Returns the area painted by this shape painter.

Specified by:

getPaintedArea in interface ShapePainter

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getPaintedBounds2D

public java.awt.geom.Rectangle2D getPaintedBounds2D()

Returns the bounds of the area painted by this shape painter

Specified by:

getPaintedBounds2D in interface ShapePainter

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inPaintedArea

public boolean inPaintedArea(java.awt.geom.Point2D pt)

Returns true if pt is in the area painted by this shape painter

Specified by:

inPaintedArea in interface ShapePainter

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getSensitiveArea

public java.awt.Shape getSensitiveArea()

Returns the area covered by this shape painter (even if not painted). This is always null for Markers.

Specified by:

getSensitiveArea in interface ShapePainter

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getSensitiveBounds2D

public java.awt.geom.Rectangle2D getSensitiveBounds2D()

Returns the bounds of the area covered by this shape painte (even if not painted). This is always null for Markers.

Specified by:

getSensitiveBounds2D in interface ShapePainter

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inSensitiveArea

public boolean inSensitiveArea(java.awt.geom.Point2D pt)

Returns true if pt is in the sensitive area. This is always false for Markers.

Specified by:

inSensitiveArea in interface ShapePainter

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setShape

public void setShape(java.awt.Shape shape)

Sets the Shape this shape painter is associated with.

Specified by:

setShape in interface ShapePainter

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getExtShape

public org.apache.batik.ext.awt.geom.ExtendedShape getExtShape()

Gets the Shape this shape painter is associated with as an Extended Shape.

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getShape

public java.awt.Shape getShape()

Gets the Shape this shape painter is associated with.

Specified by:

getShape in interface ShapePainter

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getStartMarker

public Marker getStartMarker()

Returns the marker that shall be drawn at the first vertex of the given shape.

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setStartMarker

public void setStartMarker(Marker startMarker)

Sets the marker that shall be drawn at the first vertex of the given shape.

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getMiddleMarker

public Marker getMiddleMarker()

Returns the marker that shall be drawn at every other vertex (not the first or the last one) of the given shape.

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setMiddleMarker

public void setMiddleMarker(Marker middleMarker)

Sets the marker that shall be drawn at every other vertex (not the first or the last one) of the given shape.

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getEndMarker

public Marker getEndMarker()

Returns the marker that shall be drawn at the last vertex of the given shape.

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setEndMarker

public void setEndMarker(Marker endMarker)

Sets the marker that shall be drawn at the last vertex of the given shape.

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buildMarkerGroup

protected void buildMarkerGroup()

Builds a new marker group with the current set of markers.

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buildStartMarkerProxy

protected ProxyGraphicsNode buildStartMarkerProxy()

Builds a proxy GraphicsNode for the input Marker to be drawn at the start position

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buildEndMarkerProxy

protected ProxyGraphicsNode buildEndMarkerProxy()

Builds a proxy GraphicsNode for the input Marker to be drawn at the end position.

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buildMiddleMarkerProxies

protected ProxyGraphicsNode[] buildMiddleMarkerProxies()

Builds a proxy GraphicsNode for the input Marker to be drawn at the middle positions

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createMiddleMarker

private ProxyGraphicsNode createMiddleMarker(double[] prev,
                                             int prevSegType,
                                             double[] curr,
                                             int currSegType,
                                             double[] next,
                                             int nextSegType)

Creates a ProxyGraphicsNode for a middle marker.

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computeRotation

private double computeRotation(double[] prev,
                               int prevSegType,
                               double[] curr,
                               int currSegType,
                               double[] next,
                               int nextSegType)

Returns the rotation according to the specified parameters.

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computeInSlope

private double[] computeInSlope(double[] prev,
                                int prevSegType,
                                double[] curr,
                                int currSegType)

Returns dx/dy for the in slope.

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computeOutSlope

private double[] computeOutSlope(double[] curr,
                                 int currSegType,
                                 double[] next,
                                 int nextSegType)

Returns dx/dy for the out slope.

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normalize

public double[] normalize(double[] v)

Normalizes the input vector. This assumes an non-zero length

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computeMarkerTransform

private java.awt.geom.AffineTransform computeMarkerTransform(Marker marker,
                                                             java.awt.geom.Point2D markerPosition,
                                                             double rotation)

Computes the transform for the input marker, so that it is positioned at the given position with the specified rotation

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getSegmentTerminatingPoint

protected java.awt.geom.Point2D getSegmentTerminatingPoint(double[] coords,
                                                           int segType)

Extracts the terminating point, depending on the segment type.

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