info.monitorenter.gui.chart.traces.painters

Class TracePainterFill

java.lang.Object

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

info.monitorenter.gui.chart.traces.painters.TracePainterPolyline

info.monitorenter.gui.chart.traces.painters.TracePainterFill

All Implemented Interfaces:

IPointPainter<ATracePainter>, ITracePainter<ATracePainter>, Serializable, Comparable<ATracePainter>

public class TracePainterFill
extends TracePainterPolyline

A trace painter that fills the area between trace to render and the x axis baseline with it's color.

Additionally it increases performance by summing up all points to render for a paint iteration (submitted by paintPoint(int, int, int, int, Graphics, ITracePoint2D) between TracePainterPolyline.startPaintIteration(Graphics) and endPaintIteration(Graphics)) and only invoking only one polygon paint for a paint call of the corresponding Chart2D.

Version:

$Revision: 1.21 $

Author:

Achim Westermann

See Also:

Serialized Form

Field Summary

Fields inherited from class info.monitorenter.gui.chart.traces.painters.TracePainterPolyline

m_xPoints, m_yPoints

Constructor Summary

Constructors

Constructor and Description
TracePainterFill(Chart2D chart) Constructor with the corresponding chart.

Method Summary

Modifier and Type	Method and Description
void	discontinue(Graphics g2d) Invoked to inform the painter that a discontinue in the trace to # paint has occured.
protected void	doDrawOperation(Graphics g2d, int[] x, int[] y, int length) This implementation calls the draw operation Graphics.fillPolygon(int[], int[], int).
void	endPaintIteration(Graphics g2d) FIXME: Check design if it is possible to reuse the code of superclass TracePainterPolyline.endPaintIteration(Graphics) here to avoid code duplication.
boolean	equals(Object obj)
int	hashCode()
void	paintPoint(int absoluteX, int absoluteY, int nextX, int nextY, Graphics g, ITracePoint2D original) Paint the point given by absolute coordinates on the given graphic context.

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

calculateMaxX, calculateMaxY, calculateMinX, calculateMinY, isAdditionalSpaceRequiredX, isAdditionalSpaceRequiredY, isPixelTransformationNeededX, isPixelTransformationNeededY, startPaintIteration

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

compareTo, getPreviousPoint, getPreviousX, getPreviousY

Methods inherited from class java.lang.Object

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

Constructor Detail

TracePainterFill

public TracePainterFill(Chart2D chart)

Constructor with the corresponding chart.

Parameters:

chart - needed to get the start pixel coordinates of traces.

Method Detail

discontinue

public void discontinue(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>

Overrides:

discontinue in class ATracePainter

Parameters:

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

See Also:

ITracePainter.discontinue(java.awt.Graphics)

endPaintIteration

public void endPaintIteration(Graphics g2d)

FIXME: Check design if it is possible to reuse the code of superclass TracePainterPolyline.endPaintIteration(Graphics) here to avoid code duplication.

Specified by:

endPaintIteration in interface IPointPainter<ATracePainter>

Overrides:

endPaintIteration in class TracePainterPolyline

Parameters:

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

See Also:

IPointPainter.endPaintIteration(java.awt.Graphics)

doDrawOperation

protected void doDrawOperation(Graphics g2d,
                               int[] x,
                               int[] y,
                               int length)

This implementation calls the draw operation Graphics.fillPolygon(int[], int[], int).

Overrides:

doDrawOperation in class TracePainterPolyline

See Also:

TracePainterPolyline.doDrawOperation(java.awt.Graphics, int[], int[], int)

equals

public boolean equals(Object obj)

Overrides:

equals in class TracePainterPolyline

See Also:

Object.equals(java.lang.Object)

hashCode

public int hashCode()

Overrides:

hashCode in class TracePainterPolyline

See Also:

Object.hashCode()

paintPoint

public void paintPoint(int absoluteX,
                       int absoluteY,
                       int nextX,
                       int nextY,
                       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>

Overrides:

paintPoint in class TracePainterPolyline

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.Graphics, info.monitorenter.gui.chart.ITracePoint2D)