001: /* ===========================================================
002: * JFreeChart : a free chart library for the Java(tm) platform
003: * ===========================================================
004: *
005: * (C) Copyright 2000-2005, 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, by Object Refinery Limited.
031: *
032: * Original Author: David Gilbert (for Object Refinery Limited);
033: * Contributor(s): -;
034: *
035: * $Id: PiePlotState.java,v 1.3.2.1 2005/10/25 20:52:08 mungady Exp $
036: *
037: * Changes
038: * -------
039: * 06-Mar-2004 : Version 1 (DG);
040: *
041: */
042:
043: package org.jfree.chart.plot;
044:
045: import java.awt.geom.Rectangle2D;
046:
047: import org.jfree.chart.renderer.RendererState;
048:
049: /**
050: * A renderer state.
051: */
052: public class PiePlotState extends RendererState {
053:
054: /** The number of passes required by the renderer. */
055: private int passesRequired;
056:
057: /** The total of the values in the dataset. */
058: private double total;
059:
060: /** The latest angle. */
061: private double latestAngle;
062:
063: /** The exploded pie area. */
064: private Rectangle2D explodedPieArea;
065:
066: /** The pie area. */
067: private Rectangle2D pieArea;
068:
069: /** The center of the pie in Java 2D coordinates. */
070: private double pieCenterX;
071:
072: /** The center of the pie in Java 2D coordinates. */
073: private double pieCenterY;
074:
075: /** The vertical pie radius. */
076: private double pieHRadius;
077:
078: /** The horizontal pie radius. */
079: private double pieWRadius;
080:
081: /** The link area. */
082: private Rectangle2D linkArea;
083:
084: /**
085: * Creates a new object for recording temporary state information for a
086: * renderer.
087: *
088: * @param info the plot rendering info.
089: */
090: public PiePlotState(PlotRenderingInfo info) {
091: super (info);
092: this .passesRequired = 1;
093: this .total = 0.0;
094: }
095:
096: /**
097: * Returns the number of passes required by the renderer.
098: *
099: * @return The number of passes.
100: */
101: public int getPassesRequired() {
102: return this .passesRequired;
103: }
104:
105: /**
106: * Sets the number of passes required by the renderer.
107: *
108: * @param passes the passes.
109: */
110: public void setPassesRequired(int passes) {
111: this .passesRequired = passes;
112: }
113:
114: /**
115: * Returns the total of the values in the dataset.
116: *
117: * @return The total.
118: */
119: public double getTotal() {
120: return this .total;
121: }
122:
123: /**
124: * Sets the total.
125: *
126: * @param total the total.
127: */
128: public void setTotal(double total) {
129: this .total = total;
130: }
131:
132: /**
133: * Returns the latest angle.
134: *
135: * @return The latest angle.
136: */
137: public double getLatestAngle() {
138: return this .latestAngle;
139: }
140:
141: /**
142: * Sets the latest angle.
143: *
144: * @param angle the angle.
145: */
146: public void setLatestAngle(double angle) {
147: this .latestAngle = angle;
148: }
149:
150: /**
151: * Returns the pie area.
152: *
153: * @return The pie area.
154: */
155: public Rectangle2D getPieArea() {
156: return this .pieArea;
157: }
158:
159: /**
160: * Sets the pie area.
161: *
162: * @param area the area.
163: */
164: public void setPieArea(Rectangle2D area) {
165: this .pieArea = area;
166: }
167:
168: /**
169: * Returns the exploded pie area.
170: *
171: * @return The exploded pie area.
172: */
173: public Rectangle2D getExplodedPieArea() {
174: return this .explodedPieArea;
175: }
176:
177: /**
178: * Sets the exploded pie area.
179: *
180: * @param area the area.
181: */
182: public void setExplodedPieArea(Rectangle2D area) {
183: this .explodedPieArea = area;
184: }
185:
186: /**
187: * Returns the x-coordinate of the center of the pie chart.
188: *
189: * @return The x-coordinate (in Java2D space).
190: */
191: public double getPieCenterX() {
192: return this .pieCenterX;
193: }
194:
195: /**
196: * Sets the x-coordinate of the center of the pie chart.
197: *
198: * @param x the x-coordinate (in Java2D space).
199: */
200: public void setPieCenterX(double x) {
201: this .pieCenterX = x;
202: }
203:
204: /**
205: * Returns the y-coordinate (in Java2D space) of the center of the pie
206: * chart. For the {@link PiePlot3D} class, we derive this from the top of
207: * the pie.
208: *
209: * @return The y-coordinate (in Java2D space).
210: */
211: public double getPieCenterY() {
212: return this .pieCenterY;
213: }
214:
215: /**
216: * Sets the y-coordinate of the center of the pie chart. This method is
217: * used by the plot and typically is not called directly by applications.
218: *
219: * @param y the y-coordinate (in Java2D space).
220: */
221: public void setPieCenterY(double y) {
222: this .pieCenterY = y;
223: }
224:
225: /**
226: * Returns the link area. This defines the "dog-leg" point for the label
227: * linking lines.
228: *
229: * @return The link area.
230: */
231: public Rectangle2D getLinkArea() {
232: return this .linkArea;
233: }
234:
235: /**
236: * Sets the label link area. This defines the "dog-leg" point for the
237: * label linking lines.
238: *
239: * @param area the area.
240: */
241: public void setLinkArea(Rectangle2D area) {
242: this .linkArea = area;
243: }
244:
245: /**
246: * Returns the vertical pie radius.
247: *
248: * @return The radius.
249: */
250: public double getPieHRadius() {
251: return this .pieHRadius;
252: }
253:
254: /**
255: * Sets the vertical pie radius.
256: *
257: * @param radius the radius.
258: */
259: public void setPieHRadius(double radius) {
260: this .pieHRadius = radius;
261: }
262:
263: /**
264: * Returns the horizontal pie radius.
265: *
266: * @return The radius.
267: */
268: public double getPieWRadius() {
269: return this .pieWRadius;
270: }
271:
272: /**
273: * Sets the horizontal pie radius.
274: *
275: * @param radius the radius.
276: */
277: public void setPieWRadius(double radius) {
278: this.pieWRadius = radius;
279: }
280:
281: }
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