info.monitorenter.gui.chart.traces.painters.TracePainterPolyline Maven / Gradle / Ivy
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/*
* TracePainterFill.java, .
* Copyright (c) 2004 - 2011 Achim Westermann, [email protected]
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* If you modify or optimize the code in a useful way please let me know.
* [email protected]
*/
package info.monitorenter.gui.chart.traces.painters;
import info.monitorenter.gui.chart.ITracePoint2D;
import java.awt.Graphics;
import java.util.LinkedList;
import java.util.List;
/**
* A trace painter that increases performance by summing up all points to render
* for a paint iteration (submitted by
* {@link #paintPoint(int, int, int, int, Graphics, ITracePoint2D)} invocations
* between {@link #startPaintIteration(Graphics)} and
* {@link #endPaintIteration(Graphics)}) and only invoking only one polyline
* paint for a paint call of the corresponding
* {@link info.monitorenter.gui.chart.Chart2D}.
*
*
* @author Achim Westermann
* @version $Revision: 1.22 $
*/
public class TracePainterPolyline extends ATracePainter {
/** Generated serialVersionUID. */
private static final long serialVersionUID = 142122979535173974L;
/** The list of x coordinates collected in one paint iteration. */
private List m_xPoints;
/** The list of y coordinates collected in one paint iteration. */
private List m_yPoints;
/**
* Default Constructor.
*
*/
public TracePainterPolyline() {
// nop
}
/**
* @see info.monitorenter.gui.chart.ITracePainter#endPaintIteration(java.awt.Graphics)
*/
@Override
public void endPaintIteration(final Graphics g2d) {
if (g2d != null) {
final int[] x = new int[this.m_xPoints.size() + 1];
int count = 0;
for (final Integer xpoint : this.m_xPoints) {
x[count] = xpoint.intValue();
count++;
}
x[count] = this.getPreviousX();
final int[] y = new int[this.m_yPoints.size() + 1];
count = 0;
for (final Integer ypoint : this.m_yPoints) {
y[count] = ypoint.intValue();
count++;
}
y[count] = this.getPreviousY();
g2d.drawPolyline(x, y, x.length);
}
}
/**
* @see java.lang.Object#equals(java.lang.Object)
*/
@Override
public boolean equals(final Object obj) {
if (this == obj) {
return true;
}
if (!super.equals(obj)) {
return false;
}
if (this.getClass() != obj.getClass()) {
return false;
}
final TracePainterPolyline other = (TracePainterPolyline) obj;
if (this.m_xPoints == null) {
if (other.m_xPoints != null) {
return false;
}
} else if (!this.m_xPoints.equals(other.m_xPoints)) {
return false;
}
if (this.m_yPoints == null) {
if (other.m_yPoints != null) {
return false;
}
} else if (!this.m_yPoints.equals(other.m_yPoints)) {
return false;
}
return true;
}
/**
* @see java.lang.Object#hashCode()
*/
@Override
public int hashCode() {
final int prime = 31;
int result = super.hashCode();
result = prime * result + ((this.m_xPoints == null) ? 0 : this.m_xPoints.hashCode());
result = prime * result + ((this.m_yPoints == null) ? 0 : this.m_yPoints.hashCode());
return result;
}
/**
* @see info.monitorenter.gui.chart.traces.painters.ATracePainter#paintPoint(int,
* int, int, int, java.awt.Graphics,
* info.monitorenter.gui.chart.ITracePoint2D)
*/
@Override
public void paintPoint(final int absoluteX, final int absoluteY, final int nextX,
final int nextY, final Graphics g, final ITracePoint2D original) {
super.paintPoint(absoluteX, absoluteY, nextX, nextY, g, original);
this.m_xPoints.add(new Integer(absoluteX));
this.m_yPoints.add(new Integer(absoluteY));
}
/**
* @see info.monitorenter.gui.chart.ITracePainter#startPaintIteration(java.awt.Graphics)
*/
@Override
public void startPaintIteration(final Graphics g2d) {
super.startPaintIteration(g2d);
if (this.m_xPoints == null) {
this.m_xPoints = new LinkedList();
} else {
this.m_xPoints.clear();
}
if (this.m_yPoints == null) {
this.m_yPoints = new LinkedList();
} else {
this.m_yPoints.clear();
}
}
}