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

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

All Implemented Interfaces:

IPointPainter<ATracePainter>, ITracePainter<ATracePainter>, java.io.Serializable, java.lang.Comparable<ATracePainter>

Direct Known Subclasses:

TracePainterConfigurable, TracePainterDisc, TracePainterFill, TracePainterLine, TracePainterPolyline, TracePainterVerticalBar

public abstract class ATracePainter
extends java.lang.Object
implements ITracePainter<ATracePainter>

A trace painter that adds the service of knowing the previous point that had to be painted.

Version:

$Revision: 1.27 $

Author:

Achim Westermann

See Also:

Serialized Form

Constructor Summary

ATracePainter()

Method Summary

int	compareTo(ATracePainter o)
void	discontinue(java.awt.Graphics g2d) Invoked to inform the painter that a discontinue in the trace to # paint has occured.
void	endPaintIteration(java.awt.Graphics g2d) Invoked to inform implementations that a paint iteration ends for the corresponding ITrace2D.
boolean	equals(java.lang.Object obj)
protected ITracePoint2D	getPreviousPoint() Returns the previous trace point that had to be painted by paintPoint(int, int, int, int, Graphics, ITracePoint2D).
int	getPreviousX() Returns the previous X value that had to be painted by paintPoint(int, int, int, int, Graphics, ITracePoint2D).
int	getPreviousY() Returns the previous Y value that had to be painted by paintPoint(int, int, int, int, Graphics, ITracePoint2D).
int	hashCode()
void	paintPoint(int absoluteX, int absoluteY, int nextX, int nextY, java.awt.Graphics g, ITracePoint2D original) Paint the point given by absolute coordinates on the given graphic context.
void	startPaintIteration(java.awt.Graphics g2d) Invoked to inform implementations that a paint iteration starts for the corresponding ITrace2D.

Methods inherited from class java.lang.Object

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

Constructor Detail

ATracePainter

public ATracePainter()

Method Detail

compareTo

public int compareTo(ATracePainter o)

Specified by:

compareTo in interface java.lang.Comparable<ATracePainter>

discontinue

public void discontinue(java.awt.Graphics g2d)

Description copied from interface: ITracePainter

Invoked to inform the painter that a discontinue in the trace to # paint has occured.

This only has to be implemented by painters that collect several points of IPointPainter.paintPoint(int, int, int, int, Graphics, ITracePoint2D) to draw them as polygons (e.g.: Graphics.drawPolyline(int[], int[], int)).

Specified by:

discontinue in interface ITracePainter<ATracePainter>

Parameters:

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

See Also:

ITracePainter.discontinue(java.awt.Graphics)

endPaintIteration

public void endPaintIteration(java.awt.Graphics g2d)

Description copied from interface: IPointPainter

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

Specified by:

endPaintIteration in interface IPointPainter<ATracePainter>

Parameters:

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

See Also:

IPointPainter.endPaintIteration(java.awt.Graphics)

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

See Also:

Object.equals(java.lang.Object)

getPreviousPoint

protected ITracePoint2D getPreviousPoint()

Returns the previous trace point that had to be painted by paintPoint(int, int, int, int, Graphics, ITracePoint2D).

This value will be null if no previous point had to be painted.

Returns:

the previous trace point that had to be painted by paintPoint(int, int, int, int, Graphics, ITracePoint2D).

getPreviousX

public int getPreviousX()

Returns the previous X value that had to be painted by paintPoint(int, int, int, int, Graphics, ITracePoint2D).

This value will be Integer.MIN_VALUE if no previous point had to be painted.

Returns:

the previous X value that had to be painted by paintPoint(int, int, int, int, Graphics, ITracePoint2D).

getPreviousY

public int getPreviousY()

Returns the previous Y value that had to be painted by paintPoint(int, int, int, int, Graphics, ITracePoint2D).

This value will be Integer.MIN_VALUE if no previous point had to be painted.

Returns:

the previous Y value that had to be painted by paintPoint(int, int, int, int, Graphics, ITracePoint2D).

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

See Also:

Object.hashCode()

paintPoint

public void paintPoint(int absoluteX,
                       int absoluteY,
                       int nextX,
                       int nextY,
                       java.awt.Graphics g,
                       ITracePoint2D 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.

Specified by:

paintPoint in interface IPointPainter<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:

IPointPainter.paintPoint(int, int, int, int, java.awt.Graphics, info.monitorenter.gui.chart.ITracePoint2D)

startPaintIteration

public void startPaintIteration(java.awt.Graphics g2d)

Description copied from interface: IPointPainter

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

Specified by:

startPaintIteration in interface IPointPainter<ATracePainter>

Parameters:

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

See Also:

IPointPainter.startPaintIteration(java.awt.Graphics)