001 /* ===========================================================
002 * JFreeChart : a free chart library for the Java(tm) platform
003 * ===========================================================
004 *
005 * (C) Copyright 2000-2008, by Object Refinery Limited and Contributors.
006 *
007 * Project Info: http://www.jfree.org/jfreechart/index.html
008 *
009 * This library is free software; you can redistribute it and/or modify it
010 * under the terms of the GNU Lesser General Public License as published by
011 * the Free Software Foundation; either version 2.1 of the License, or
012 * (at your option) any later version.
013 *
014 * This library is distributed in the hope that it will be useful, but
015 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
016 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
017 * License for more details.
018 *
019 * You should have received a copy of the GNU Lesser General Public
020 * License along with this library; if not, write to the Free Software
021 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
022 * USA.
023 *
024 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
025 * in the United States and other countries.]
026 *
027 * -----------------
028 * PiePlotState.java
029 * -----------------
030 * (C) Copyright 2004-2008, by Object Refinery Limited.
031 *
032 * Original Author: David Gilbert (for Object Refinery Limited);
033 * Contributor(s): -;
034 *
035 * Changes
036 * -------
037 * 06-Mar-2004 : Version 1 (DG);
038 *
039 */
040
041 package org.jfree.chart.plot;
042
043 import java.awt.geom.Rectangle2D;
044
045 import org.jfree.chart.renderer.RendererState;
046
047 /**
048 * A renderer state.
049 */
050 public class PiePlotState extends RendererState {
051
052 /** The number of passes required by the renderer. */
053 private int passesRequired;
054
055 /** The total of the values in the dataset. */
056 private double total;
057
058 /** The latest angle. */
059 private double latestAngle;
060
061 /** The exploded pie area. */
062 private Rectangle2D explodedPieArea;
063
064 /** The pie area. */
065 private Rectangle2D pieArea;
066
067 /** The center of the pie in Java 2D coordinates. */
068 private double pieCenterX;
069
070 /** The center of the pie in Java 2D coordinates. */
071 private double pieCenterY;
072
073 /** The vertical pie radius. */
074 private double pieHRadius;
075
076 /** The horizontal pie radius. */
077 private double pieWRadius;
078
079 /** The link area. */
080 private Rectangle2D linkArea;
081
082 /**
083 * Creates a new object for recording temporary state information for a
084 * renderer.
085 *
086 * @param info the plot rendering info.
087 */
088 public PiePlotState(PlotRenderingInfo info) {
089 super(info);
090 this.passesRequired = 1;
091 this.total = 0.0;
092 }
093
094 /**
095 * Returns the number of passes required by the renderer.
096 *
097 * @return The number of passes.
098 */
099 public int getPassesRequired() {
100 return this.passesRequired;
101 }
102
103 /**
104 * Sets the number of passes required by the renderer.
105 *
106 * @param passes the passes.
107 */
108 public void setPassesRequired(int passes) {
109 this.passesRequired = passes;
110 }
111
112 /**
113 * Returns the total of the values in the dataset.
114 *
115 * @return The total.
116 */
117 public double getTotal() {
118 return this.total;
119 }
120
121 /**
122 * Sets the total.
123 *
124 * @param total the total.
125 */
126 public void setTotal(double total) {
127 this.total = total;
128 }
129
130 /**
131 * Returns the latest angle.
132 *
133 * @return The latest angle.
134 */
135 public double getLatestAngle() {
136 return this.latestAngle;
137 }
138
139 /**
140 * Sets the latest angle.
141 *
142 * @param angle the angle.
143 */
144 public void setLatestAngle(double angle) {
145 this.latestAngle = angle;
146 }
147
148 /**
149 * Returns the pie area.
150 *
151 * @return The pie area.
152 */
153 public Rectangle2D getPieArea() {
154 return this.pieArea;
155 }
156
157 /**
158 * Sets the pie area.
159 *
160 * @param area the area.
161 */
162 public void setPieArea(Rectangle2D area) {
163 this.pieArea = area;
164 }
165
166 /**
167 * Returns the exploded pie area.
168 *
169 * @return The exploded pie area.
170 */
171 public Rectangle2D getExplodedPieArea() {
172 return this.explodedPieArea;
173 }
174
175 /**
176 * Sets the exploded pie area.
177 *
178 * @param area the area.
179 */
180 public void setExplodedPieArea(Rectangle2D area) {
181 this.explodedPieArea = area;
182 }
183
184 /**
185 * Returns the x-coordinate of the center of the pie chart.
186 *
187 * @return The x-coordinate (in Java2D space).
188 */
189 public double getPieCenterX() {
190 return this.pieCenterX;
191 }
192
193 /**
194 * Sets the x-coordinate of the center of the pie chart.
195 *
196 * @param x the x-coordinate (in Java2D space).
197 */
198 public void setPieCenterX(double x) {
199 this.pieCenterX = x;
200 }
201
202 /**
203 * Returns the y-coordinate (in Java2D space) of the center of the pie
204 * chart. For the {@link PiePlot3D} class, we derive this from the top of
205 * the pie.
206 *
207 * @return The y-coordinate (in Java2D space).
208 */
209 public double getPieCenterY() {
210 return this.pieCenterY;
211 }
212
213 /**
214 * Sets the y-coordinate of the center of the pie chart. This method is
215 * used by the plot and typically is not called directly by applications.
216 *
217 * @param y the y-coordinate (in Java2D space).
218 */
219 public void setPieCenterY(double y) {
220 this.pieCenterY = y;
221 }
222
223 /**
224 * Returns the link area. This defines the "dog-leg" point for the label
225 * linking lines.
226 *
227 * @return The link area.
228 */
229 public Rectangle2D getLinkArea() {
230 return this.linkArea;
231 }
232
233 /**
234 * Sets the label link area. This defines the "dog-leg" point for the
235 * label linking lines.
236 *
237 * @param area the area.
238 */
239 public void setLinkArea(Rectangle2D area) {
240 this.linkArea = area;
241 }
242
243 /**
244 * Returns the vertical pie radius.
245 *
246 * @return The radius.
247 */
248 public double getPieHRadius() {
249 return this.pieHRadius;
250 }
251
252 /**
253 * Sets the vertical pie radius.
254 *
255 * @param radius the radius.
256 */
257 public void setPieHRadius(double radius) {
258 this.pieHRadius = radius;
259 }
260
261 /**
262 * Returns the horizontal pie radius.
263 *
264 * @return The radius.
265 */
266 public double getPieWRadius() {
267 return this.pieWRadius;
268 }
269
270 /**
271 * Sets the horizontal pie radius.
272 *
273 * @param radius the radius.
274 */
275 public void setPieWRadius(double radius) {
276 this.pieWRadius = radius;
277 }
278
279 }