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/* ===========================================================
* Orson Charts : a 3D chart library for the Java(tm) platform
* ===========================================================
*
* (C)opyright 2013-2020, by Object Refinery Limited. All rights reserved.
*
* https://github.com/jfree/orson-charts
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*
* [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
* Other names may be trademarks of their respective owners.]
*
* If you do not wish to be bound by the terms of the GPL, an alternative
* commercial license can be purchased. For details, please see visit the
* Orson Charts home page:
*
* http://www.object-refinery.com/orsoncharts/index.html
*
*/
package org.jfree.chart3d.marker;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.geom.Line2D;
import java.awt.geom.Path2D;
import java.awt.geom.Point2D;
import java.io.Serializable;
import org.jfree.chart3d.data.Range;
import org.jfree.chart3d.graphics2d.Anchor2D;
import org.jfree.chart3d.internal.Args;
import org.jfree.chart3d.internal.ObjectUtils;
/**
* A marker that marks a range of values on an axis.
*
* For an example, please refer to the demo {@code RangeMarkerDemo1.java}.
*
* NOTE: This class is serializable, but the serialization format is subject
* to change in future releases and should not be relied upon for persisting
* instances of this class.
*
* @since 1.2
*/
@SuppressWarnings("serial")
public class RangeMarker extends AbstractMarker implements ValueMarker,
MarkerChangeListener, Serializable {
/** The start of the range. */
private NumberMarker start;
/** The end of the range. */
private NumberMarker end;
/** The label for the marker (optional). */
private String label;
/** The font for the label. */
private Font font;
/** The color for the label. */
private Color labelColor;
/** The anchor for the label. */
private Anchor2D labelAnchor;
/** The color used to fill the band representing the marker range. */
Color fillColor;
/**
* Creates a new range marker for the given bounds.
*
* @param lowerBound the lower bound.
* @param upperBound the upper bound.
*/
public RangeMarker(double lowerBound, double upperBound) {
this(lowerBound, upperBound, null);
}
/**
* Creates a new range marker for the given bounds.
*
* @param lowerBound the lower bound.
* @param upperBound the upper bound.
* @param label the label ({@code null} permitted).
*/
public RangeMarker(double lowerBound, double upperBound, String label) {
super();
this.start = new NumberMarker(lowerBound);
this.start.addChangeListener(this);
this.end = new NumberMarker(upperBound);
this.end.addChangeListener(this);
this.label = label;
this.font = DEFAULT_MARKER_FONT;
this.labelColor = DEFAULT_LABEL_COLOR;
this.labelAnchor = Anchor2D.CENTER;
this.fillColor = DEFAULT_FILL_COLOR;
}
/**
* Returns the starting point for the range marker.
*
* @return The starting point.
*/
public NumberMarker getStart() {
return this.start;
}
/**
* Returns the ending point for the range marker.
*
* @return The ending point.
*/
public NumberMarker getEnd() {
return this.end;
}
/**
* Returns the range of values for the marker.
*
* @return The range of values for the marker.
*/
@Override
public Range getRange() {
return new Range(this.start.getValue(), this.end.getValue());
}
/**
* Returns the label for the marker (if this is {@code null} then no
* label is displayed).
*
* @return The label (possibly {@code null}).
*/
public String getLabel() {
return this.label;
}
/**
* Sets the label and sends a change event to all registered listeners. If
* the label is set to {@code null} then no label is displayed for
* the marker.
*
* @param label the label ({@code null} permitted).
*/
public void setLabel(String label) {
this.label = label;
fireChangeEvent();
}
/**
* Returns the font for the label. The default value is
* {@link Marker#DEFAULT_MARKER_FONT}.
*
* @return The font (never {@code null}).
*/
public Font getFont() {
return this.font;
}
/**
* Sets the font for the marker label and sends a change event to all
* registered listeners.
*
* @param font the font ({@code null} not permitted).
*/
public void setFont(Font font) {
Args.nullNotPermitted(font, "font");
this.font = font;
fireChangeEvent();
}
/**
* Returns the label color. The default value is
* {@link Marker#DEFAULT_LABEL_COLOR}.
*
* @return The label color (never {@code null}).
*/
public Color getLabelColor() {
return this.labelColor;
}
/**
* Sets the label color and sends a change event to all registered
* listeners.
*
* @param color the color ({@code null} not permitted).
*/
public void setLabelColor(Color color) {
Args.nullNotPermitted(color, "color");
this.labelColor = color;
fireChangeEvent();
}
/**
* Returns the anchor for the label. The default value is
* {@link Anchor2D#CENTER}.
*
* @return The anchor for the label.
*/
public Anchor2D getLabelAnchor() {
return this.labelAnchor;
}
/**
* Sets the anchor for the label and sends a change event to all registered
* listeners.
*
* @param anchor the anchor ({@code null} not permitted).
*/
public void setLabelAnchor(Anchor2D anchor) {
Args.nullNotPermitted(anchor, "anchor");
this.labelAnchor = anchor;
fireChangeEvent();
}
/**
* Returns the color used to fill the band representing the range for
* the marker. The default value is {@link Marker#DEFAULT_FILL_COLOR}.
*
* @return The fill color (never {@code null}).
*/
public Color getFillColor() {
return this.fillColor;
}
/**
* Sets the color used to fill the band representing the range for the
* marker and sends a change event to all registered listeners.
*
* @param color the color ({@code null} not permitted).
*/
public void setFillColor(Color color) {
Args.nullNotPermitted(color, "color");
this.fillColor = color;
fireChangeEvent();
}
@Override
public void draw(Graphics2D g2, MarkerData markerData, boolean reverse) {
MarkerLine startLine = markerData.getStartLine();
Line2D l1 = new Line2D.Double(startLine.getStartPoint(),
startLine.getEndPoint());
MarkerLine endLine = markerData.getEndLine();
Line2D l2 = new Line2D.Double(endLine.getStartPoint(),
endLine.getEndPoint());
Path2D path = new Path2D.Double();
path.moveTo(l1.getX1(), l1.getY1());
path.lineTo(l1.getX2(), l1.getY2());
path.lineTo(l2.getX2(), l2.getY2());
path.lineTo(l2.getX1(), l2.getY1());
path.closePath();
g2.setPaint(this.fillColor);
g2.fill(path);
if (!startLine.isPegged()) {
g2.setPaint(this.start.getLineColor());
g2.setStroke(this.start.getLineStroke());
g2.draw(l1);
}
if (!endLine.isPegged()) {
g2.setPaint(this.end.getLineColor());
g2.setStroke(this.end.getLineStroke());
g2.draw(l2);
}
Point2D labelPoint = markerData.getLabelPoint();
if (labelPoint != null) {
g2.setFont(this.font);
g2.setColor(this.labelColor);
drawMarkerLabel(g2, this.label, labelPoint.getX(),
labelPoint.getY(), markerData.getLabelAnchor(), l1, l2,
reverse);
}
}
/**
* Receives notification of a change to the start or end marker for the
* range.
*
* @param event the event ({@code null} not permitted).
*/
@Override
public void markerChanged(MarkerChangeEvent event) {
fireChangeEvent();
}
@Override
public int hashCode() {
int hash = 7;
hash = 97 * hash + ObjectUtils.hashCode(this.start);
hash = 97 * hash + ObjectUtils.hashCode(this.end);
hash = 97 * hash + ObjectUtils.hashCode(this.label);
return hash;
}
/**
* Tests this marker for equality with an arbitrary object.
*
* @param obj the object to test against ({@code null} permitted).
*
* @return A boolean.
*/
@Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final RangeMarker other = (RangeMarker) obj;
if (!ObjectUtils.equals(this.start, other.start)) {
return false;
}
if (!ObjectUtils.equals(this.end, other.end)) {
return false;
}
if (!ObjectUtils.equals(this.label, other.label)) {
return false;
}
if (!ObjectUtils.equals(this.font, other.font)) {
return false;
}
if (!ObjectUtils.equals(this.labelColor, other.labelColor)) {
return false;
}
if (!ObjectUtils.equals(this.labelAnchor, other.labelAnchor)) {
return false;
}
if (!ObjectUtils.equals(this.fillColor, other.fillColor)) {
return false;
}
return true;
}
}
