info.monitorenter.gui.chart.traces.painters
Class TracePainterDisc

java.lang.Object
  info.monitorenter.gui.chart.traces.painters.ATracePainter
      info.monitorenter.gui.chart.traces.painters.TracePainterDisc

All Implemented Interfaces:

IPointPainter, ITracePainter, Serializable, Comparable

public class TracePainterDisc
extends ATracePainter

Renders traces by painting a disc (hollow circle) with choosable diameter for each TracePoint2D to show.

Version:

$Revision: 1.8 $

Author:

Achim Westermann

See Also:

Serialized Form

Constructor Summary

TracePainterDisc()
Creates an instance with a default disc size of 4.

TracePainterDisc(int discSize)
Creates an instance with the given disc size.

Method Summary

void	endPaintIteration(Graphics2D g2d) Invoked to inform implementations that a paint iteration ends for the corresponding ITrace2D.
int	getDiscSize() Returns the diameter of the discs to paint in pixel.
void	paintPoint(int absoluteX, int absoluteY, int nextX, int nextY, Graphics2D g, TracePoint2D original) Paint the point given by absolute coordinates on the given graphic context.
void	setDiscSize(int discSize) Sets the diameter of the discs to paint in pixel.

Methods inherited from class info.monitorenter.gui.chart.traces.painters.ATracePainter

compareTo, discontinue, equals, getPreviousPoint, getPreviousX, getPreviousY, hashCode, startPaintIteration

Methods inherited from class java.lang.Object

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

Constructor Detail

TracePainterDisc

public TracePainterDisc()

Creates an instance with a default disc size of 4.

TracePainterDisc

public TracePainterDisc(int discSize)

Creates an instance with the given disc size.

Parameters:

discSize - the disc size in pixel to use.

Method Detail

endPaintIteration

public void endPaintIteration(Graphics2D g2d)

Description copied from interface: ITracePainter

Invoked to inform implementations that a paint iteration ends for the corresponding ITrace2D.

Specified by:

endPaintIteration in interface ITracePainter

Overrides:

endPaintIteration in class ATracePainter

Parameters:

g2d - provided in case pending paint operations have to be performed.

See Also:

ITracePainter.endPaintIteration(java.awt.Graphics2D)

getDiscSize

public int getDiscSize()

Returns the diameter of the discs to paint in pixel.

Returns:

the diameter of the discs to paint in pixel.

paintPoint

public void paintPoint(int absoluteX,
                       int absoluteY,
                       int nextX,
                       int nextY,
                       Graphics2D g,
                       TracePoint2D original)

Description copied from interface: IPointPainter

Paint the point given by absolute coordinates on the given graphic context.

The next coordinates are also provided to allow to check how much distance is available for the graphic representation of the current point.

Note that by contract the TracePoint2D argument is only guaranteed to be non-null in case the instance is used as a painter for ITracePainter subtypes. If you plan to use your implementation also for a subcomponent of an IErrorBarPainter (e.g. IErrorBarPainter.setConnectionPainter(IPointPainter)) then you have to implement "null - safe" for that argument.

Specified by:

paintPoint in interface IPointPainter

Overrides:

paintPoint in class ATracePainter

Parameters:

absoluteX - the ready to use x value for the point to paint.

absoluteY - the ready to use y value for the point to paint.

nextX - the ready to use next x value for the point to paint.

nextY - the ready to use next y value for the point to paint.

g - the graphic context to paint on.

original - just for information, for painting this should be irrelevant and it should not be changed too!

See Also:

ATracePainter.paintPoint(int, int, int, int, java.awt.Graphics2D, info.monitorenter.gui.chart.TracePoint2D)

setDiscSize

public void setDiscSize(int discSize)

Sets the diameter of the discs to paint in pixel.

Parameters:

discSize - the diameter of the discs to paint in pixel.