org.jfree.chart.text.TextBox Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of jfreechart Show documentation
Show all versions of jfreechart Show documentation
JFreeChart is a class library, written in Java, for generating charts.
Utilising the Java2D API, it supports a wide range of chart types including
bar charts, pie charts, line charts, XY-plots, time series plots, Sankey charts
and more.
/* ===========================================================
* 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.]
*
*/
package org.jfree.chart.text;
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.Paint;
import java.awt.Stroke;
import java.awt.geom.Rectangle2D;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.util.Objects;
import org.jfree.chart.ui.RectangleAnchor;
import org.jfree.chart.ui.RectangleInsets;
import org.jfree.chart.ui.Size2D;
import org.jfree.chart.util.SerialUtils;
/**
* A box containing a text block.
*/
public class TextBox implements Serializable {
/** For serialization. */
private static final long serialVersionUID = 3360220213180203706L;
/** The outline paint. */
private transient Paint outlinePaint;
/** The outline stroke. */
private transient Stroke outlineStroke;
/** The interior space. */
private RectangleInsets interiorGap;
/** The background paint. */
private transient Paint backgroundPaint;
/** The shadow paint. */
private transient Paint shadowPaint;
/** The shadow x-offset. */
private double shadowXOffset = 2.0;
/** The shadow y-offset. */
private double shadowYOffset = 2.0;
/** The text block. */
private TextBlock textBlock;
/**
* Creates an empty text box.
*/
public TextBox() {
this((TextBlock) null);
}
/**
* Creates a text box.
*
* @param text the text.
*/
public TextBox(String text) {
this((TextBlock) null);
if (text != null) {
this.textBlock = new TextBlock();
this.textBlock.addLine(text, new Font("SansSerif", Font.PLAIN, 10),
Color.BLACK);
}
}
/**
* Creates a new text box.
*
* @param block the text block.
*/
public TextBox(TextBlock block) {
this.outlinePaint = Color.BLACK;
this.outlineStroke = new BasicStroke(1.0f);
this.interiorGap = new RectangleInsets(1.0, 3.0, 1.0, 3.0);
this.backgroundPaint = new Color(255, 255, 192);
this.shadowPaint = Color.GRAY;
this.shadowXOffset = 2.0;
this.shadowYOffset = 2.0;
this.textBlock = block;
}
/**
* Returns the outline paint.
*
* @return The outline paint.
*/
public Paint getOutlinePaint() {
return this.outlinePaint;
}
/**
* Sets the outline paint.
*
* @param paint the paint.
*/
public void setOutlinePaint(Paint paint) {
this.outlinePaint = paint;
}
/**
* Returns the outline stroke.
*
* @return The outline stroke.
*/
public Stroke getOutlineStroke() {
return this.outlineStroke;
}
/**
* Sets the outline stroke.
*
* @param stroke the stroke.
*/
public void setOutlineStroke(Stroke stroke) {
this.outlineStroke = stroke;
}
/**
* Returns the interior gap.
*
* @return The interior gap.
*/
public RectangleInsets getInteriorGap() {
return this.interiorGap;
}
/**
* Sets the interior gap.
*
* @param gap the gap.
*/
public void setInteriorGap(RectangleInsets gap) {
this.interiorGap = gap;
}
/**
* Returns the background paint.
*
* @return The background paint.
*/
public Paint getBackgroundPaint() {
return this.backgroundPaint;
}
/**
* Sets the background paint.
*
* @param paint the paint.
*/
public void setBackgroundPaint(Paint paint) {
this.backgroundPaint = paint;
}
/**
* Returns the shadow paint.
*
* @return The shadow paint.
*/
public Paint getShadowPaint() {
return this.shadowPaint;
}
/**
* Sets the shadow paint.
*
* @param paint the paint.
*/
public void setShadowPaint(Paint paint) {
this.shadowPaint = paint;
}
/**
* Returns the x-offset for the shadow effect.
*
* @return The offset.
*/
public double getShadowXOffset() {
return this.shadowXOffset;
}
/**
* Sets the x-offset for the shadow effect.
*
* @param offset the offset (in Java2D units).
*/
public void setShadowXOffset(double offset) {
this.shadowXOffset = offset;
}
/**
* Returns the y-offset for the shadow effect.
*
* @return The offset.
*/
public double getShadowYOffset() {
return this.shadowYOffset;
}
/**
* Sets the y-offset for the shadow effect.
*
* @param offset the offset (in Java2D units).
*/
public void setShadowYOffset(double offset) {
this.shadowYOffset = offset;
}
/**
* Returns the text block.
*
* @return The text block.
*/
public TextBlock getTextBlock() {
return this.textBlock;
}
/**
* Sets the text block.
*
* @param block the block.
*/
public void setTextBlock(TextBlock block) {
this.textBlock = block;
}
/**
* Draws the text box.
*
* @param g2 the graphics device.
* @param x the x-coordinate.
* @param y the y-coordinate.
* @param anchor the anchor point.
*/
public void draw(Graphics2D g2, float x, float y, RectangleAnchor anchor) {
final Size2D d1 = this.textBlock.calculateDimensions(g2);
final double w = this.interiorGap.extendWidth(d1.getWidth());
final double h = this.interiorGap.extendHeight(d1.getHeight());
final Size2D d2 = new Size2D(w, h);
final Rectangle2D bounds
= RectangleAnchor.createRectangle(d2, x, y, anchor);
double xx = bounds.getX();
double yy = bounds.getY();
if (this.shadowPaint != null) {
final Rectangle2D shadow = new Rectangle2D.Double(
xx + this.shadowXOffset, yy + this.shadowYOffset,
bounds.getWidth(), bounds.getHeight());
g2.setPaint(this.shadowPaint);
g2.fill(shadow);
}
if (this.backgroundPaint != null) {
g2.setPaint(this.backgroundPaint);
g2.fill(bounds);
}
if (this.outlinePaint != null && this.outlineStroke != null) {
g2.setPaint(this.outlinePaint);
g2.setStroke(this.outlineStroke);
g2.draw(bounds);
}
this.textBlock.draw(g2,
(float) (xx + this.interiorGap.calculateLeftInset(w)),
(float) (yy + this.interiorGap.calculateTopInset(h)),
TextBlockAnchor.TOP_LEFT);
}
/**
* Returns the height of the text box.
*
* @param g2 the graphics device.
*
* @return The height (in Java2D units).
*/
public double getHeight(Graphics2D g2) {
final Size2D d = this.textBlock.calculateDimensions(g2);
return this.interiorGap.extendHeight(d.getHeight());
}
/**
* Tests this object 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 == this) {
return true;
}
if (!(obj instanceof TextBox)) {
return false;
}
final TextBox that = (TextBox) obj;
if (!Objects.equals(this.outlinePaint, that.outlinePaint)) {
return false;
}
if (!Objects.equals(this.outlineStroke, that.outlineStroke)) {
return false;
}
if (!Objects.equals(this.interiorGap, that.interiorGap)) {
return false;
}
if (!Objects.equals(this.backgroundPaint, that.backgroundPaint)) {
return false;
}
if (!Objects.equals(this.shadowPaint, that.shadowPaint)) {
return false;
}
if (this.shadowXOffset != that.shadowXOffset) {
return false;
}
if (this.shadowYOffset != that.shadowYOffset) {
return false;
}
if (!Objects.equals(this.textBlock, that.textBlock)) {
return false;
}
return true;
}
/**
* Returns a hash code for this object.
*
* @return A hash code.
*/
@Override
public int hashCode() {
int result;
long temp;
result = (this.outlinePaint != null ? this.outlinePaint.hashCode() : 0);
result = 29 * result + (this.outlineStroke != null
? this.outlineStroke.hashCode() : 0);
result = 29 * result + (this.interiorGap != null
? this.interiorGap.hashCode() : 0);
result = 29 * result + (this.backgroundPaint != null
? this.backgroundPaint.hashCode() : 0);
result = 29 * result + (this.shadowPaint != null
? this.shadowPaint.hashCode() : 0);
temp = this.shadowXOffset != +0.0d
? Double.doubleToLongBits(this.shadowXOffset) : 0L;
result = 29 * result + (int) (temp ^ (temp >>> 32));
temp = this.shadowYOffset != +0.0d
? Double.doubleToLongBits(this.shadowYOffset) : 0L;
result = 29 * result + (int) (temp ^ (temp >>> 32));
result = 29 * result + (this.textBlock != null
? this.textBlock.hashCode() : 0);
return result;
}
/**
* Provides serialization support.
*
* @param stream the output stream.
*
* @throws IOException if there is an I/O error.
*/
private void writeObject(ObjectOutputStream stream) throws IOException {
stream.defaultWriteObject();
SerialUtils.writePaint(this.outlinePaint, stream);
SerialUtils.writeStroke(this.outlineStroke, stream);
SerialUtils.writePaint(this.backgroundPaint, stream);
SerialUtils.writePaint(this.shadowPaint, stream);
}
/**
* Provides serialization support.
*
* @param stream the input stream.
*
* @throws IOException if there is an I/O error.
* @throws ClassNotFoundException if there is a classpath problem.
*/
private void readObject(ObjectInputStream stream) throws IOException,
ClassNotFoundException {
stream.defaultReadObject();
this.outlinePaint = SerialUtils.readPaint(stream);
this.outlineStroke = SerialUtils.readStroke(stream);
this.backgroundPaint = SerialUtils.readPaint(stream);
this.shadowPaint = SerialUtils.readPaint(stream);
}
}