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 * CombinedDomainXYPlot.java
029 * -------------------------
030 * (C) Copyright 2001-2008, by Bill Kelemen and Contributors.
031 *
032 * Original Author: Bill Kelemen;
033 * Contributor(s): David Gilbert (for Object Refinery Limited);
034 * Anthony Boulestreau;
035 * David Basten;
036 * Kevin Frechette (for ISTI);
037 * Nicolas Brodu;
038 * Petr Kubanek (bug 1606205);
039 *
040 * Changes:
041 * --------
042 * 06-Dec-2001 : Version 1 (BK);
043 * 12-Dec-2001 : Removed unnecessary 'throws' clause from constructor (DG);
044 * 18-Dec-2001 : Added plotArea attribute and get/set methods (BK);
045 * 22-Dec-2001 : Fixed bug in chartChanged with multiple combinations of
046 * CombinedPlots (BK);
047 * 08-Jan-2002 : Moved to new package com.jrefinery.chart.combination (DG);
048 * 25-Feb-2002 : Updated import statements (DG);
049 * 28-Feb-2002 : Readded "this.plotArea = plotArea" that was deleted from
050 * draw() method (BK);
051 * 26-Mar-2002 : Added an empty zoom method (this method needs to be written so
052 * that combined plots will support zooming (DG);
053 * 29-Mar-2002 : Changed the method createCombinedAxis adding the creation of
054 * OverlaidSymbolicAxis and CombinedSymbolicAxis(AB);
055 * 23-Apr-2002 : Renamed CombinedPlot-->MultiXYPlot, and simplified the
056 * structure (DG);
057 * 23-May-2002 : Renamed (again) MultiXYPlot-->CombinedXYPlot (DG);
058 * 19-Jun-2002 : Added get/setGap() methods suggested by David Basten (DG);
059 * 25-Jun-2002 : Removed redundant imports (DG);
060 * 16-Jul-2002 : Draws shared axis after subplots (to fix missing gridlines),
061 * added overrides of 'setSeriesPaint()' and 'setXYItemRenderer()'
062 * that pass changes down to subplots (KF);
063 * 09-Oct-2002 : Added add(XYPlot) method (DG);
064 * 26-Mar-2003 : Implemented Serializable (DG);
065 * 16-May-2003 : Renamed CombinedXYPlot --> CombinedDomainXYPlot (DG);
066 * 04-Aug-2003 : Removed leftover code that was causing domain axis drawing
067 * problem (DG);
068 * 08-Aug-2003 : Adjusted totalWeight in remove() method (DG);
069 * 21-Aug-2003 : Implemented Cloneable (DG);
070 * 11-Sep-2003 : Fix cloning support (subplots) (NB);
071 * 15-Sep-2003 : Fixed error in cloning (DG);
072 * 16-Sep-2003 : Changed ChartRenderingInfo --> PlotRenderingInfo (DG);
073 * 17-Sep-2003 : Updated handling of 'clicks' (DG);
074 * 12-Nov-2004 : Implemented the new Zoomable interface (DG);
075 * 25-Nov-2004 : Small update to clone() implementation (DG);
076 * 21-Feb-2005 : The getLegendItems() method now returns the fixed legend
077 * items if set (DG);
078 * 05-May-2005 : Removed unused draw() method (DG);
079 * ------------- JFREECHART 1.0.x ---------------------------------------------
080 * 23-Aug-2006 : Override setFixedRangeAxisSpace() to update subplots (DG);
081 * 06-Feb-2007 : Fixed bug 1606205, draw shared axis after subplots (DG);
082 * 23-Mar-2007 : Reverted previous patch (bug fix 1606205) (DG);
083 * 17-Apr-2007 : Added null argument checks to findSubplot() (DG);
084 * 27-Nov-2007 : Modified setFixedRangeAxisSpaceForSubplots() so as not to
085 * trigger change event in subplots (DG);
086 * 28-Jan-2008 : Reset fixed range axis space in subplots for each call to
087 * draw() (DG);
088 * 27-Mar-2008 : Add documentation for getDataRange() method (DG);
089 * 31-Mar-2008 : Updated getSubplots() to return EMPTY_LIST for null
090 * subplots, as suggested by Richard West (DG);
091 * 28-Apr-2008 : Fixed zooming problem (see bug 1950037) (DG);
092 * 11-Aug-2008 : Don't store totalWeight of subplots, calculate it as
093 * required (DG);
094 *
095 */
096
097 package org.jfree.chart.plot;
098
099 import java.awt.Graphics2D;
100 import java.awt.geom.Point2D;
101 import java.awt.geom.Rectangle2D;
102 import java.util.Collections;
103 import java.util.Iterator;
104 import java.util.List;
105
106 import org.jfree.chart.LegendItemCollection;
107 import org.jfree.chart.axis.AxisSpace;
108 import org.jfree.chart.axis.AxisState;
109 import org.jfree.chart.axis.NumberAxis;
110 import org.jfree.chart.axis.ValueAxis;
111 import org.jfree.chart.event.PlotChangeEvent;
112 import org.jfree.chart.event.PlotChangeListener;
113 import org.jfree.chart.renderer.xy.XYItemRenderer;
114 import org.jfree.data.Range;
115 import org.jfree.ui.RectangleEdge;
116 import org.jfree.ui.RectangleInsets;
117 import org.jfree.util.ObjectUtilities;
118
119 /**
120 * An extension of {@link XYPlot} that contains multiple subplots that share a
121 * common domain axis.
122 */
123 public class CombinedDomainXYPlot extends XYPlot
124 implements PlotChangeListener {
125
126 /** For serialization. */
127 private static final long serialVersionUID = -7765545541261907383L;
128
129 /** Storage for the subplot references. */
130 private List subplots;
131
132 /** The gap between subplots. */
133 private double gap = 5.0;
134
135 /** Temporary storage for the subplot areas. */
136 private transient Rectangle2D[] subplotAreas;
137 // TODO: the subplot areas needs to be moved out of the plot into the plot
138 // state
139
140 /**
141 * Default constructor.
142 */
143 public CombinedDomainXYPlot() {
144 this(new NumberAxis());
145 }
146
147 /**
148 * Creates a new combined plot that shares a domain axis among multiple
149 * subplots.
150 *
151 * @param domainAxis the shared axis.
152 */
153 public CombinedDomainXYPlot(ValueAxis domainAxis) {
154
155 super(
156 null, // no data in the parent plot
157 domainAxis,
158 null, // no range axis
159 null // no rendereer
160 );
161
162 this.subplots = new java.util.ArrayList();
163
164 }
165
166 /**
167 * Returns a string describing the type of plot.
168 *
169 * @return The type of plot.
170 */
171 public String getPlotType() {
172 return "Combined_Domain_XYPlot";
173 }
174
175 /**
176 * Sets the orientation for the plot (also changes the orientation for all
177 * the subplots to match).
178 *
179 * @param orientation the orientation (<code>null</code> not allowed).
180 */
181 public void setOrientation(PlotOrientation orientation) {
182
183 super.setOrientation(orientation);
184 Iterator iterator = this.subplots.iterator();
185 while (iterator.hasNext()) {
186 XYPlot plot = (XYPlot) iterator.next();
187 plot.setOrientation(orientation);
188 }
189
190 }
191
192 /**
193 * Returns a range representing the extent of the data values in this plot
194 * (obtained from the subplots) that will be rendered against the specified
195 * axis. NOTE: This method is intended for internal JFreeChart use, and
196 * is public only so that code in the axis classes can call it. Since
197 * only the domain axis is shared between subplots, the JFreeChart code
198 * will only call this method for the domain values (although this is not
199 * checked/enforced).
200 *
201 * @param axis the axis.
202 *
203 * @return The range (possibly <code>null</code>).
204 */
205 public Range getDataRange(ValueAxis axis) {
206 Range result = null;
207 if (this.subplots != null) {
208 Iterator iterator = this.subplots.iterator();
209 while (iterator.hasNext()) {
210 XYPlot subplot = (XYPlot) iterator.next();
211 result = Range.combine(result, subplot.getDataRange(axis));
212 }
213 }
214 return result;
215 }
216
217 /**
218 * Returns the gap between subplots, measured in Java2D units.
219 *
220 * @return The gap (in Java2D units).
221 */
222 public double getGap() {
223 return this.gap;
224 }
225
226 /**
227 * Sets the amount of space between subplots and sends a
228 * {@link PlotChangeEvent} to all registered listeners.
229 *
230 * @param gap the gap between subplots (in Java2D units).
231 */
232 public void setGap(double gap) {
233 this.gap = gap;
234 fireChangeEvent();
235 }
236
237 /**
238 * Adds a subplot (with a default 'weight' of 1) and sends a
239 * {@link PlotChangeEvent} to all registered listeners.
240 * <P>
241 * The domain axis for the subplot will be set to <code>null</code>. You
242 * must ensure that the subplot has a non-null range axis.
243 *
244 * @param subplot the subplot (<code>null</code> not permitted).
245 */
246 public void add(XYPlot subplot) {
247 // defer argument checking
248 add(subplot, 1);
249 }
250
251 /**
252 * Adds a subplot with the specified weight and sends a
253 * {@link PlotChangeEvent} to all registered listeners. The weight
254 * determines how much space is allocated to the subplot relative to all
255 * the other subplots.
256 * <P>
257 * The domain axis for the subplot will be set to <code>null</code>. You
258 * must ensure that the subplot has a non-null range axis.
259 *
260 * @param subplot the subplot (<code>null</code> not permitted).
261 * @param weight the weight (must be >= 1).
262 */
263 public void add(XYPlot subplot, int weight) {
264
265 if (subplot == null) {
266 throw new IllegalArgumentException("Null 'subplot' argument.");
267 }
268 if (weight <= 0) {
269 throw new IllegalArgumentException("Require weight >= 1.");
270 }
271
272 // store the plot and its weight
273 subplot.setParent(this);
274 subplot.setWeight(weight);
275 subplot.setInsets(new RectangleInsets(0.0, 0.0, 0.0, 0.0), false);
276 subplot.setDomainAxis(null);
277 subplot.addChangeListener(this);
278 this.subplots.add(subplot);
279
280 ValueAxis axis = getDomainAxis();
281 if (axis != null) {
282 axis.configure();
283 }
284 fireChangeEvent();
285 }
286
287 /**
288 * Removes a subplot from the combined chart and sends a
289 * {@link PlotChangeEvent} to all registered listeners.
290 *
291 * @param subplot the subplot (<code>null</code> not permitted).
292 */
293 public void remove(XYPlot subplot) {
294 if (subplot == null) {
295 throw new IllegalArgumentException(" Null 'subplot' argument.");
296 }
297 int position = -1;
298 int size = this.subplots.size();
299 int i = 0;
300 while (position == -1 && i < size) {
301 if (this.subplots.get(i) == subplot) {
302 position = i;
303 }
304 i++;
305 }
306 if (position != -1) {
307 this.subplots.remove(position);
308 subplot.setParent(null);
309 subplot.removeChangeListener(this);
310 ValueAxis domain = getDomainAxis();
311 if (domain != null) {
312 domain.configure();
313 }
314 fireChangeEvent();
315 }
316 }
317
318 /**
319 * Returns the list of subplots. The returned list may be empty, but is
320 * never <code>null</code>.
321 *
322 * @return An unmodifiable list of subplots.
323 */
324 public List getSubplots() {
325 if (this.subplots != null) {
326 return Collections.unmodifiableList(this.subplots);
327 }
328 else {
329 return Collections.EMPTY_LIST;
330 }
331 }
332
333 /**
334 * Calculates the axis space required.
335 *
336 * @param g2 the graphics device.
337 * @param plotArea the plot area.
338 *
339 * @return The space.
340 */
341 protected AxisSpace calculateAxisSpace(Graphics2D g2,
342 Rectangle2D plotArea) {
343
344 AxisSpace space = new AxisSpace();
345 PlotOrientation orientation = getOrientation();
346
347 // work out the space required by the domain axis...
348 AxisSpace fixed = getFixedDomainAxisSpace();
349 if (fixed != null) {
350 if (orientation == PlotOrientation.HORIZONTAL) {
351 space.setLeft(fixed.getLeft());
352 space.setRight(fixed.getRight());
353 }
354 else if (orientation == PlotOrientation.VERTICAL) {
355 space.setTop(fixed.getTop());
356 space.setBottom(fixed.getBottom());
357 }
358 }
359 else {
360 ValueAxis xAxis = getDomainAxis();
361 RectangleEdge xEdge = Plot.resolveDomainAxisLocation(
362 getDomainAxisLocation(), orientation);
363 if (xAxis != null) {
364 space = xAxis.reserveSpace(g2, this, plotArea, xEdge, space);
365 }
366 }
367
368 Rectangle2D adjustedPlotArea = space.shrink(plotArea, null);
369
370 // work out the maximum height or width of the non-shared axes...
371 int n = this.subplots.size();
372 int totalWeight = 0;
373 for (int i = 0; i < n; i++) {
374 XYPlot sub = (XYPlot) this.subplots.get(i);
375 totalWeight += sub.getWeight();
376 }
377 this.subplotAreas = new Rectangle2D[n];
378 double x = adjustedPlotArea.getX();
379 double y = adjustedPlotArea.getY();
380 double usableSize = 0.0;
381 if (orientation == PlotOrientation.HORIZONTAL) {
382 usableSize = adjustedPlotArea.getWidth() - this.gap * (n - 1);
383 }
384 else if (orientation == PlotOrientation.VERTICAL) {
385 usableSize = adjustedPlotArea.getHeight() - this.gap * (n - 1);
386 }
387
388 for (int i = 0; i < n; i++) {
389 XYPlot plot = (XYPlot) this.subplots.get(i);
390
391 // calculate sub-plot area
392 if (orientation == PlotOrientation.HORIZONTAL) {
393 double w = usableSize * plot.getWeight() / totalWeight;
394 this.subplotAreas[i] = new Rectangle2D.Double(x, y, w,
395 adjustedPlotArea.getHeight());
396 x = x + w + this.gap;
397 }
398 else if (orientation == PlotOrientation.VERTICAL) {
399 double h = usableSize * plot.getWeight() / totalWeight;
400 this.subplotAreas[i] = new Rectangle2D.Double(x, y,
401 adjustedPlotArea.getWidth(), h);
402 y = y + h + this.gap;
403 }
404
405 AxisSpace subSpace = plot.calculateRangeAxisSpace(g2,
406 this.subplotAreas[i], null);
407 space.ensureAtLeast(subSpace);
408
409 }
410
411 return space;
412 }
413
414 /**
415 * Draws the plot within the specified area on a graphics device.
416 *
417 * @param g2 the graphics device.
418 * @param area the plot area (in Java2D space).
419 * @param anchor an anchor point in Java2D space (<code>null</code>
420 * permitted).
421 * @param parentState the state from the parent plot, if there is one
422 * (<code>null</code> permitted).
423 * @param info collects chart drawing information (<code>null</code>
424 * permitted).
425 */
426 public void draw(Graphics2D g2,
427 Rectangle2D area,
428 Point2D anchor,
429 PlotState parentState,
430 PlotRenderingInfo info) {
431
432 // set up info collection...
433 if (info != null) {
434 info.setPlotArea(area);
435 }
436
437 // adjust the drawing area for plot insets (if any)...
438 RectangleInsets insets = getInsets();
439 insets.trim(area);
440
441 setFixedRangeAxisSpaceForSubplots(null);
442 AxisSpace space = calculateAxisSpace(g2, area);
443 Rectangle2D dataArea = space.shrink(area, null);
444
445 // set the width and height of non-shared axis of all sub-plots
446 setFixedRangeAxisSpaceForSubplots(space);
447
448 // draw the shared axis
449 ValueAxis axis = getDomainAxis();
450 RectangleEdge edge = getDomainAxisEdge();
451 double cursor = RectangleEdge.coordinate(dataArea, edge);
452 AxisState axisState = axis.draw(g2, cursor, area, dataArea, edge, info);
453 if (parentState == null) {
454 parentState = new PlotState();
455 }
456 parentState.getSharedAxisStates().put(axis, axisState);
457
458 // draw all the subplots
459 for (int i = 0; i < this.subplots.size(); i++) {
460 XYPlot plot = (XYPlot) this.subplots.get(i);
461 PlotRenderingInfo subplotInfo = null;
462 if (info != null) {
463 subplotInfo = new PlotRenderingInfo(info.getOwner());
464 info.addSubplotInfo(subplotInfo);
465 }
466 plot.draw(g2, this.subplotAreas[i], anchor, parentState,
467 subplotInfo);
468 }
469
470 if (info != null) {
471 info.setDataArea(dataArea);
472 }
473
474 }
475
476 /**
477 * Returns a collection of legend items for the plot.
478 *
479 * @return The legend items.
480 */
481 public LegendItemCollection getLegendItems() {
482 LegendItemCollection result = getFixedLegendItems();
483 if (result == null) {
484 result = new LegendItemCollection();
485 if (this.subplots != null) {
486 Iterator iterator = this.subplots.iterator();
487 while (iterator.hasNext()) {
488 XYPlot plot = (XYPlot) iterator.next();
489 LegendItemCollection more = plot.getLegendItems();
490 result.addAll(more);
491 }
492 }
493 }
494 return result;
495 }
496
497 /**
498 * Multiplies the range on the range axis/axes by the specified factor.
499 *
500 * @param factor the zoom factor.
501 * @param info the plot rendering info (<code>null</code> not permitted).
502 * @param source the source point (<code>null</code> not permitted).
503 */
504 public void zoomRangeAxes(double factor, PlotRenderingInfo info,
505 Point2D source) {
506 zoomRangeAxes(factor, info, source, false);
507 }
508
509 /**
510 * Multiplies the range on the range axis/axes by the specified factor.
511 *
512 * @param factor the zoom factor.
513 * @param state the plot state.
514 * @param source the source point (in Java2D coordinates).
515 * @param useAnchor use source point as zoom anchor?
516 */
517 public void zoomRangeAxes(double factor, PlotRenderingInfo state,
518 Point2D source, boolean useAnchor) {
519 // delegate 'state' and 'source' argument checks...
520 XYPlot subplot = findSubplot(state, source);
521 if (subplot != null) {
522 subplot.zoomRangeAxes(factor, state, source, useAnchor);
523 }
524 else {
525 // if the source point doesn't fall within a subplot, we do the
526 // zoom on all subplots...
527 Iterator iterator = getSubplots().iterator();
528 while (iterator.hasNext()) {
529 subplot = (XYPlot) iterator.next();
530 subplot.zoomRangeAxes(factor, state, source, useAnchor);
531 }
532 }
533 }
534
535 /**
536 * Zooms in on the range axes.
537 *
538 * @param lowerPercent the lower bound.
539 * @param upperPercent the upper bound.
540 * @param info the plot rendering info (<code>null</code> not permitted).
541 * @param source the source point (<code>null</code> not permitted).
542 */
543 public void zoomRangeAxes(double lowerPercent, double upperPercent,
544 PlotRenderingInfo info, Point2D source) {
545 // delegate 'info' and 'source' argument checks...
546 XYPlot subplot = findSubplot(info, source);
547 if (subplot != null) {
548 subplot.zoomRangeAxes(lowerPercent, upperPercent, info, source);
549 }
550 else {
551 // if the source point doesn't fall within a subplot, we do the
552 // zoom on all subplots...
553 Iterator iterator = getSubplots().iterator();
554 while (iterator.hasNext()) {
555 subplot = (XYPlot) iterator.next();
556 subplot.zoomRangeAxes(lowerPercent, upperPercent, info, source);
557 }
558 }
559 }
560
561 /**
562 * Returns the subplot (if any) that contains the (x, y) point (specified
563 * in Java2D space).
564 *
565 * @param info the chart rendering info (<code>null</code> not permitted).
566 * @param source the source point (<code>null</code> not permitted).
567 *
568 * @return A subplot (possibly <code>null</code>).
569 */
570 public XYPlot findSubplot(PlotRenderingInfo info, Point2D source) {
571 if (info == null) {
572 throw new IllegalArgumentException("Null 'info' argument.");
573 }
574 if (source == null) {
575 throw new IllegalArgumentException("Null 'source' argument.");
576 }
577 XYPlot result = null;
578 int subplotIndex = info.getSubplotIndex(source);
579 if (subplotIndex >= 0) {
580 result = (XYPlot) this.subplots.get(subplotIndex);
581 }
582 return result;
583 }
584
585 /**
586 * Sets the item renderer FOR ALL SUBPLOTS. Registered listeners are
587 * notified that the plot has been modified.
588 * <P>
589 * Note: usually you will want to set the renderer independently for each
590 * subplot, which is NOT what this method does.
591 *
592 * @param renderer the new renderer.
593 */
594 public void setRenderer(XYItemRenderer renderer) {
595
596 super.setRenderer(renderer); // not strictly necessary, since the
597 // renderer set for the
598 // parent plot is not used
599
600 Iterator iterator = this.subplots.iterator();
601 while (iterator.hasNext()) {
602 XYPlot plot = (XYPlot) iterator.next();
603 plot.setRenderer(renderer);
604 }
605
606 }
607
608 /**
609 * Sets the fixed range axis space and sends a {@link PlotChangeEvent} to
610 * all registered listeners.
611 *
612 * @param space the space (<code>null</code> permitted).
613 */
614 public void setFixedRangeAxisSpace(AxisSpace space) {
615 super.setFixedRangeAxisSpace(space);
616 setFixedRangeAxisSpaceForSubplots(space);
617 fireChangeEvent();
618 }
619
620 /**
621 * Sets the size (width or height, depending on the orientation of the
622 * plot) for the domain axis of each subplot.
623 *
624 * @param space the space.
625 */
626 protected void setFixedRangeAxisSpaceForSubplots(AxisSpace space) {
627 Iterator iterator = this.subplots.iterator();
628 while (iterator.hasNext()) {
629 XYPlot plot = (XYPlot) iterator.next();
630 plot.setFixedRangeAxisSpace(space, false);
631 }
632 }
633
634 /**
635 * Handles a 'click' on the plot by updating the anchor values.
636 *
637 * @param x x-coordinate, where the click occured.
638 * @param y y-coordinate, where the click occured.
639 * @param info object containing information about the plot dimensions.
640 */
641 public void handleClick(int x, int y, PlotRenderingInfo info) {
642 Rectangle2D dataArea = info.getDataArea();
643 if (dataArea.contains(x, y)) {
644 for (int i = 0; i < this.subplots.size(); i++) {
645 XYPlot subplot = (XYPlot) this.subplots.get(i);
646 PlotRenderingInfo subplotInfo = info.getSubplotInfo(i);
647 subplot.handleClick(x, y, subplotInfo);
648 }
649 }
650 }
651
652 /**
653 * Receives a {@link PlotChangeEvent} and responds by notifying all
654 * listeners.
655 *
656 * @param event the event.
657 */
658 public void plotChanged(PlotChangeEvent event) {
659 notifyListeners(event);
660 }
661
662 /**
663 * Tests this plot for equality with another object.
664 *
665 * @param obj the other object.
666 *
667 * @return <code>true</code> or <code>false</code>.
668 */
669 public boolean equals(Object obj) {
670 if (obj == this) {
671 return true;
672 }
673 if (!(obj instanceof CombinedDomainXYPlot)) {
674 return false;
675 }
676 CombinedDomainXYPlot that = (CombinedDomainXYPlot) obj;
677 if (this.gap != that.gap) {
678 return false;
679 }
680 if (!ObjectUtilities.equal(this.subplots, that.subplots)) {
681 return false;
682 }
683 return super.equals(obj);
684 }
685
686 /**
687 * Returns a clone of the annotation.
688 *
689 * @return A clone.
690 *
691 * @throws CloneNotSupportedException this class will not throw this
692 * exception, but subclasses (if any) might.
693 */
694 public Object clone() throws CloneNotSupportedException {
695
696 CombinedDomainXYPlot result = (CombinedDomainXYPlot) super.clone();
697 result.subplots = (List) ObjectUtilities.deepClone(this.subplots);
698 for (Iterator it = result.subplots.iterator(); it.hasNext();) {
699 Plot child = (Plot) it.next();
700 child.setParent(result);
701 }
702
703 // after setting up all the subplots, the shared domain axis may need
704 // reconfiguring
705 ValueAxis domainAxis = result.getDomainAxis();
706 if (domainAxis != null) {
707 domainAxis.configure();
708 }
709
710 return result;
711
712 }
713
714 }