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/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-present, by David Gilbert and Contributors.
*
* Project Info: http://www.jfree.org/jfreechart/index.html
*
* 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 Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
* [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
* Other names may be trademarks of their respective owners.]
*
* ----------------------
* ItemLabelPosition.java
* ----------------------
* (C) Copyright 2003-present, by David Gilbert and Contributors.
*
* Original Author: David Gilbert;
* Contributor(s): Yuri Blankenstein;
* Tracy Hiltbrand (equals/hashCode comply with EqualsVerifier);
*
*/
package org.jfree.chart.labels;
import java.io.Serializable;
import java.util.Objects;
import org.jfree.chart.ui.TextAnchor;
import org.jfree.chart.util.Args;
/**
* The attributes that control the position of the label for each data item on
* a chart. Instances of this class are immutable.
*/
public class ItemLabelPosition implements Serializable {
/** For serialization. */
private static final long serialVersionUID = 5845390630157034499L;
/** The item label anchor point. */
private ItemLabelAnchor itemLabelAnchor;
/** The text anchor. */
private TextAnchor textAnchor;
/** The rotation anchor. */
private TextAnchor rotationAnchor;
/** The rotation angle. */
private double angle;
/** The item label clip type. */
private ItemLabelClip itemLabelClip;
/**
* Creates a new position record with default settings.
*/
public ItemLabelPosition() {
this(ItemLabelAnchor.OUTSIDE12, TextAnchor.BOTTOM_CENTER,
TextAnchor.CENTER, 0.0);
}
/**
* Creates a new position record (with zero rotation).
*
* @param itemLabelAnchor the item label anchor ({@code null} not
* permitted).
* @param textAnchor the text anchor ({@code null} not permitted).
*/
public ItemLabelPosition(ItemLabelAnchor itemLabelAnchor,
TextAnchor textAnchor) {
this(itemLabelAnchor, textAnchor, TextAnchor.CENTER, 0.0);
}
/**
* Creates a new position record. The item label anchor is a point relative
* to the data item (dot, bar or other visual item) on a chart. The item
* label is aligned by aligning the text anchor with the item label anchor.
*
* @param itemLabelAnchor the item label anchor ({@code null} not
* permitted).
* @param textAnchor the text anchor ({@code null} not permitted).
* @param itemLabelClip The clip type for the label ({@code null} not
* permitted. Only used when
* {@link ItemLabelAnchor#isInternal()} returns
* {@code true}, if {@code false} {@code labelClip}
* is always considered to be
* {@link ItemLabelClip#NONE})
*/
public ItemLabelPosition(ItemLabelAnchor itemLabelAnchor,
TextAnchor textAnchor, ItemLabelClip itemLabelClip) {
this(itemLabelAnchor, textAnchor, TextAnchor.CENTER, 0.0,
itemLabelClip);
}
/**
* Creates a new position record. The item label anchor is a point
* relative to the data item (dot, bar or other visual item) on a chart.
* The item label is aligned by aligning the text anchor with the
* item label anchor.
*
* @param itemLabelAnchor the item label anchor ({@code null} not
* permitted).
* @param textAnchor the text anchor ({@code null} not permitted).
* @param rotationAnchor the rotation anchor ({@code null} not
* permitted).
* @param angle the rotation angle (in radians).
*/
public ItemLabelPosition(ItemLabelAnchor itemLabelAnchor,
TextAnchor textAnchor, TextAnchor rotationAnchor, double angle) {
this(itemLabelAnchor, textAnchor, rotationAnchor, angle,
ItemLabelClip.FIT);
}
/**
* Creates a new position record. The item label anchor is a point relative
* to the data item (dot, bar or other visual item) on a chart. The item
* label is aligned by aligning the text anchor with the item label anchor.
*
* @param itemLabelAnchor the item label anchor ({@code null} not
* permitted).
* @param textAnchor the text anchor ({@code null} not permitted).
* @param rotationAnchor the rotation anchor ({@code null} not permitted).
* @param angle the rotation angle (in radians).
* @param itemLabelClip The clip type for the label ({@code null} not
* permitted. Only used when
* {@link ItemLabelAnchor#isInternal()} returns
* {@code true}, if {@code false} {@code labelClip}
* is always considered to be
* {@link ItemLabelClip#NONE})
*/
public ItemLabelPosition(ItemLabelAnchor itemLabelAnchor,
TextAnchor textAnchor, TextAnchor rotationAnchor, double angle,
ItemLabelClip itemLabelClip) {
Args.nullNotPermitted(itemLabelAnchor, "itemLabelAnchor");
Args.nullNotPermitted(textAnchor, "textAnchor");
Args.nullNotPermitted(rotationAnchor, "rotationAnchor");
Args.nullNotPermitted(itemLabelClip, "labelClip");
this.itemLabelAnchor = itemLabelAnchor;
this.textAnchor = textAnchor;
this.rotationAnchor = rotationAnchor;
this.angle = angle;
this.itemLabelClip = itemLabelClip;
}
/**
* Returns the item label anchor.
*
* @return The item label anchor (never {@code null}).
*/
public ItemLabelAnchor getItemLabelAnchor() {
return this.itemLabelAnchor;
}
/**
* Returns the text anchor.
*
* @return The text anchor (never {@code null}).
*/
public TextAnchor getTextAnchor() {
return this.textAnchor;
}
/**
* Returns the rotation anchor point.
*
* @return The rotation anchor point (never {@code null}).
*/
public TextAnchor getRotationAnchor() {
return this.rotationAnchor;
}
/**
* Returns the angle of rotation for the label.
*
* @return The angle (in radians).
*/
public double getAngle() {
return this.angle;
}
/**
* Returns the clip type for the label.
*
* @return The clip type for the label.
*/
public ItemLabelClip getItemLabelClip() {
return this.itemLabelClip;
}
/**
* Tests this object for equality with an arbitrary object.
*
* @param obj the object ({@code null} permitted).
*
* @return A boolean.
*/
@Override
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (!(obj instanceof ItemLabelPosition)) {
return false;
}
ItemLabelPosition that = (ItemLabelPosition) obj;
if (!Objects.equals(this.itemLabelAnchor, that.itemLabelAnchor)) {
return false;
}
if (!Objects.equals(this.textAnchor, that.textAnchor)) {
return false;
}
if (!Objects.equals(this.rotationAnchor, that.rotationAnchor)) {
return false;
}
if (Double.doubleToLongBits(this.angle) != Double.doubleToLongBits(that.angle)) {
return false;
}
if (!Objects.equals(this.itemLabelClip, that.itemLabelClip)) {
return false;
}
return true;
}
@Override
public int hashCode() {
int hash = 5;
hash = 97 * hash + Objects.hashCode(this.itemLabelAnchor);
hash = 97 * hash + Objects.hashCode(this.textAnchor);
hash = 97 * hash + Objects.hashCode(this.rotationAnchor);
hash = 97 * hash + (int) (Double.doubleToLongBits(this.angle) ^ (Double.doubleToLongBits(this.angle) >>> 32));
hash = 97 * hash + Objects.hashCode(this.itemLabelClip);
return hash;
}
}
