File: PdfCell.java

package info (click to toggle)
libitext-java 1.4.5-3
  • links: PTS
  • area: main
  • in suites: lenny
  • size: 7,748 kB
  • ctags: 12,714
  • sloc: java: 88,264; xml: 305; makefile: 19
file content (890 lines) | stat: -rw-r--r-- 30,469 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
/*
 * $Id: PdfCell.java,v 1.99 2006/09/08 12:58:39 blowagie Exp $
 * $Name:  $
 *
 * Copyright 1999, 2000, 2001, 2002 Bruno Lowagie
 *
 * The contents of this file are subject to the Mozilla Public License Version 1.1
 * (the "License"); you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the License.
 *
 * The Original Code is 'iText, a free JAVA-PDF library'.
 *
 * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
 * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
 * All Rights Reserved.
 * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
 * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
 *
 * Contributor(s): all the names of the contributors are added in the source code
 * where applicable.
 *
 * Alternatively, the contents of this file may be used under the terms of the
 * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
 * provisions of LGPL are applicable instead of those above.  If you wish to
 * allow use of your version of this file only under the terms of the LGPL
 * License and not to allow others to use your version of this file under
 * the MPL, indicate your decision by deleting the provisions above and
 * replace them with the notice and other provisions required by the LGPL.
 * If you do not delete the provisions above, a recipient may use your version
 * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the MPL as stated above or under the terms of the GNU
 * Library General Public License as published by the Free Software Foundation;
 * either version 2 of the License, or 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 Library general Public License for more
 * details.
 *
 * If you didn't download this code from the following link, you should check if
 * you aren't using an obsolete version:
 * http://www.lowagie.com/iText/
 */

package com.lowagie.text.pdf;

import java.util.ArrayList;
import java.util.Iterator;

import com.lowagie.text.*;

/**
 * A <CODE>PdfCell</CODE> is the PDF translation of a <CODE>Cell</CODE>.
 * <P>
 * A <CODE>PdfCell</CODE> is an <CODE>ArrayList</CODE> of <CODE>PdfLine</CODE>s.
 * <P>
 * When using variable borders ({@link com.lowagie.text.Rectangle#isUseVariableBorders isUseVariableBorders()} == true),
 * the borders are drawn completely inside the cell Rectangle
 * so that adjacent cell borders will not overlap.
 * Otherwise, the borders are drawn on top of the edges of the
 * cell Rectangle and will overlap the borders of adjacent
 * cells.
 *
 * @see		com.lowagie.text.Rectangle
 * @see		com.lowagie.text.Cell
 * @see		PdfLine
 * @see		PdfTable
 */

public class PdfCell extends Rectangle {

    // membervariables
    
    /**
     * These are the PdfLines in the Cell.
     */
    private ArrayList lines;

    /**
     * These are the PdfLines in the Cell.
     */
    private PdfLine line;

    /**
     * These are the Images in the Cell.
     */
    private ArrayList images;

    /**
     * This is the leading of the lines.
     */
    private float leading;

    /**
     * This is the number of the row the cell is in.
     */
    private int rownumber;

    /**
     * This is the rowspan of the cell.
     */
    private int rowspan;

    /**
     * This is the cellspacing of the cell.
     */
    private float cellspacing;

    /**
     * This is the cellpadding of the cell.
     */
    private float cellpadding;

    /**
     * Indicates if this cell belongs to the header of a <CODE>PdfTable</CODE>
     */
    private boolean header = false;

    /**
     * This is the total height of the content of the cell.  Note that the actual cell
     * height may be larger due to another cell on the row *
     */
    private float contentHeight = 0.0f;

    /**
     * Indicates that the largest ascender height should be used to
     * determine the height of the first line. Setting this to true can help
     * with vertical alignment problems. */
    private boolean useAscender;

    /**
     * Indicates that the largest descender height should be added to the height of
     * the last line (so characters like y don't dip into the border). */
    private boolean useDescender;

    /**
     * Adjusts the cell contents to compensate for border widths.
     */
    private boolean useBorderPadding;

    private int verticalAlignment;

    private PdfLine firstLine;
    private PdfLine lastLine;

    // constructors
    
    /**
     * Constructs a <CODE>PdfCell</CODE>-object.
     *
     * @param	cell		the original <CODE>Cell</CODE>
     * @param	rownumber	the number of the <CODE>Row</CODE> the <CODE>Cell</CODE> was in.
     * @param	left		the left border of the <CODE>PdfCell</CODE>
     * @param	right		the right border of the <CODE>PdfCell</CODE>
     * @param	top			the top border of the <CODE>PdfCell</CODE>
     * @param	cellspacing	the cellspacing of the <CODE>Table</CODE>
     * @param	cellpadding	the cellpadding	of the <CODE>Table</CODE>
     */

    public PdfCell(Cell cell, int rownumber, float left, float right, float top, float cellspacing, float cellpadding) {
        // constructs a Rectangle (the bottomvalue will be changed afterwards)
        super(left, top, right, top);
        // copying the other Rectangle attributes from class Cell
        cloneNonPositionParameters(cell);
        this.cellpadding = cellpadding;
        this.cellspacing = cellspacing;
        this.verticalAlignment = cell.verticalAlignment();
        this.useAscender = cell.isUseAscender();
        this.useDescender = cell.isUseDescender();
        this.useBorderPadding = cell.isUseBorderPadding();

        // initialisation of some parameters
        PdfChunk chunk;
        Element element;
        PdfChunk overflow;
        lines = new ArrayList();
        images = new ArrayList();
        leading = cell.leading();
        int alignment = cell.horizontalAlignment();
        left += cellspacing + cellpadding;
        right -= cellspacing + cellpadding;

        left += getBorderWidthInside(LEFT);
        right -= getBorderWidthInside(RIGHT);


        contentHeight = 0;

        rowspan = cell.rowspan();

        ArrayList allActions;
        int aCounter;
        // we loop over all the elements of the cell
        for (Iterator i = cell.getElements(); i.hasNext();) {
            element = (Element) i.next();
            switch (element.type()) {
                case Element.JPEG:
                case Element.IMGRAW:
                case Element.IMGTEMPLATE:
                    addImage((Image) element, left, right, 0.4f * leading, alignment); //
                    break;
                    // if the element is a list
                case Element.LIST:
                    if (line != null && line.size() > 0) {
                        line.resetAlignment();
                        addLine(line);
                    }
                    allActions = new ArrayList();
                    processActions(element, null, allActions);
                    aCounter = 0;
                    ListItem item;
                    // we loop over all the listitems
                    for (Iterator items = ((List) element).getItems().iterator(); items.hasNext();) {
                        item = (ListItem) items.next();
                        line = new PdfLine(left + item.indentationLeft(), right, alignment, item.leading());
                        line.setListItem(item);
                        for (Iterator j = item.getChunks().iterator(); j.hasNext();) {
                            chunk = new PdfChunk((Chunk) j.next(), (PdfAction) (allActions.get(aCounter++)));
                            while ((overflow = line.add(chunk)) != null) {
                                addLine(line);
                                line = new PdfLine(left + item.indentationLeft(), right, alignment, item.leading());
                                chunk = overflow;
                            }
                            line.resetAlignment();
                            addLine(line);
                            line = new PdfLine(left + item.indentationLeft(), right, alignment, leading);
                        }
                    }
                    line = new PdfLine(left, right, alignment, leading);
                    break;
                    // if the element is something else
                default:
                    allActions = new ArrayList();
                    processActions(element, null, allActions);
                    aCounter = 0;

                    float currentLineLeading = leading;
                    float currentLeft = left;
                    float currentRight = right;
                    if (element instanceof Phrase) {
                        currentLineLeading = ((Phrase) element).leading();
                    }
                    if (element instanceof Paragraph) {
                        Paragraph p = (Paragraph) element;
                        currentLeft += p.indentationLeft();
                        currentRight -= p.indentationRight();
                    }
                    if (line == null) {
                        line = new PdfLine(currentLeft, currentRight, alignment, currentLineLeading);
                    }
                    // we loop over the chunks
                    ArrayList chunks = element.getChunks();
                    if (chunks.isEmpty()) {
                       addLine(line); // add empty line - all cells need some lines even if they are empty
                       line = new PdfLine(currentLeft, currentRight, alignment, currentLineLeading);
                    }
                    else {
                        for (Iterator j = chunks.iterator(); j.hasNext();) {
                            Chunk c = (Chunk) j.next();
                            chunk = new PdfChunk(c, (PdfAction) (allActions.get(aCounter++)));
                            while ((overflow = line.add(chunk)) != null) {
                                addLine(line);
                                line = new PdfLine(currentLeft, currentRight, alignment, currentLineLeading);
                                chunk = overflow;
                            }
                        }
                    }
                    // if the element is a paragraph, section or chapter, we reset the alignment and add the line
                    switch (element.type()) {
                        case Element.PARAGRAPH:
                        case Element.SECTION:
                        case Element.CHAPTER:
                            line.resetAlignment();
                            flushCurrentLine();
                    }
            }
        }
        flushCurrentLine();
        if (lines.size() > cell.getMaxLines()) {
            while (lines.size() > cell.getMaxLines()) {
                removeLine(lines.size() - 1);
            }
            if (cell.getMaxLines() > 0) {
                String more = cell.getShowTruncation();
                if (more != null && more.length() > 0) {
                    // Denote that the content has been truncated
                    lastLine = (PdfLine) lines.get(lines.size() - 1);
                    if (lastLine.size() >= 0) {
                        PdfChunk lastChunk = lastLine.getChunk(lastLine.size() - 1);
                        float moreWidth = new PdfChunk(more, lastChunk).width();
                        while (lastChunk.toString().length() > 0 && lastChunk.width() + moreWidth > right - left) {
                            // Remove characters to leave room for the 'more' indicator
                            lastChunk.setValue(lastChunk.toString().substring(0, lastChunk.length() - 1));
                        }
                        lastChunk.setValue(lastChunk.toString() + more);
                    } else {
                        lastLine.add(new PdfChunk(new Chunk(more), null));
                    }
                }
            }
        }
        // we set some additional parameters
        if (useDescender && lastLine != null) {
            contentHeight -= lastLine.getDescender();
        }

        // adjust first line height so that it touches the top
        if (lines.size() > 0) {
            firstLine = (PdfLine) lines.get(0);
            float firstLineRealHeight = firstLineRealHeight();
            contentHeight -= firstLine.height();
            firstLine.height = firstLineRealHeight;
            contentHeight += firstLineRealHeight;
        }

        float newBottom = top - contentHeight - (2f * cellpadding()) - (2f * cellspacing());
        newBottom -= getBorderWidthInside(TOP) + getBorderWidthInside(BOTTOM);
        setBottom(newBottom);

        this.rownumber = rownumber;
    }




    // overriding of the Rectangle methods


    /**
     * Sets the bottom of the Rectangle and determines the proper {link #verticalOffset}
     * to appropriately align the contents vertically.
     * @param value
     */
    public void setBottom(float value) {
        super.setBottom(value);
        float firstLineRealHeight = firstLineRealHeight();

        float totalHeight = ury - value; // can't use top (already compensates for cellspacing)
        float nonContentHeight = (cellpadding() * 2f) + (cellspacing() * 2f);
        nonContentHeight += getBorderWidthInside(TOP) + getBorderWidthInside(BOTTOM);

        float interiorHeight = totalHeight - nonContentHeight;
        float extraHeight = 0.0f;

        switch (verticalAlignment) {
            case Element.ALIGN_BOTTOM:
                extraHeight = interiorHeight - contentHeight;
                break;
            case Element.ALIGN_MIDDLE:
                extraHeight = (interiorHeight - contentHeight) / 2.0f;
                break;
            default:    // ALIGN_TOP
                extraHeight = 0f;
        }

        extraHeight += cellpadding() + cellspacing();
        extraHeight += getBorderWidthInside(TOP);
        if (firstLine != null) {
            firstLine.height = firstLineRealHeight + extraHeight;
        }
    }

    /**
     * Returns the lower left x-coordinaat.
     *
     * @return		the lower left x-coordinaat
     */

    public float left() {
        return super.left(cellspacing);
    }

    /**
     * Returns the upper right x-coordinate.
     *
     * @return		the upper right x-coordinate
     */

    public float right() {
        return super.right(cellspacing);
    }

    /**
     * Returns the upper right y-coordinate.
     *
     * @return		the upper right y-coordinate
     */

    public float top() {
        return super.top(cellspacing);
    }

    /**
     * Returns the lower left y-coordinate.
     *
     * @return		the lower left y-coordinate
     */

    public float bottom() {
        return super.bottom(cellspacing);
    }
    
    // methods

    private void addLine(PdfLine line) {
        lines.add(line);
        contentHeight += line.height();
        lastLine = line;
        this.line = null;
    }

    private PdfLine removeLine(int index) {
        PdfLine oldLine = (PdfLine) lines.remove(index);
        contentHeight -= oldLine.height();
        if (index == 0) {
            if (lines.size() > 0) {
                firstLine = (PdfLine) lines.get(0);
                float firstLineRealHeight = firstLineRealHeight();
                contentHeight -= firstLine.height();
                firstLine.height = firstLineRealHeight;
                contentHeight += firstLineRealHeight;
            }
        }
        return oldLine;
    }

    private void flushCurrentLine() {
        if (line != null && line.size() > 0) {
            addLine(line);
        }
    }

    /**
     * Calculates what the height of the first line should be so that the content will be
     * flush with the top.  For text, this is the height of the ascender.  For an image,
     * it is the actual height of the image.
     * @return the real height of the first line
     */
    private float firstLineRealHeight() {
        float firstLineRealHeight = 0f;
        if (firstLine != null) {
            PdfChunk chunk = firstLine.getChunk(0);
            if (chunk != null) {
                Image image = chunk.getImage();
                if (image != null) {
                    firstLineRealHeight = firstLine.getChunk(0).getImage().scaledHeight();
                } else {
                    firstLineRealHeight = useAscender ? firstLine.getAscender() : leading;
                }
            }
        }
        return firstLineRealHeight;
    }

    /**
     * Gets the amount of the border for the specified side that is inside the Rectangle.
     * For non-variable width borders this is only 1/2 the border width on that side.  This
     * always returns 0 if {@link #useBorderPadding} is false;
     * @param side the side to check.  One of the side constants in {@link com.lowagie.text.Rectangle}
     * @return the borderwidth inside the cell
     */
    private float getBorderWidthInside(int side) {
        float width = 0f;
        if (useBorderPadding) {
            switch (side) {
                case Rectangle.LEFT:
                    width = getBorderWidthLeft();
                    break;

                case Rectangle.RIGHT:
                    width = getBorderWidthRight();
                    break;

                case Rectangle.TOP:
                    width = getBorderWidthTop();
                    break;

                default:    // default and BOTTOM
                    width = getBorderWidthBottom();
                    break;
            }
            // non-variable (original style) borders overlap the rectangle (only 1/2 counts)
            if (!isUseVariableBorders()) {
                width = width / 2f;
            }
        }
        return width;
    }


    /**
     * Adds an image to this Cell.
     *
     * @param i           the image to add
     * @param left        the left border
     * @param right       the right border
     * @param extraHeight extra height to add above image
     * @param alignment   horizontal alignment (constant from Element class)
     * @return the height of the image
     */

    private float addImage(Image i, float left, float right, float extraHeight, int alignment) {
        Image image = Image.getInstance(i);
        if (image.scaledWidth() > right - left) {
            image.scaleToFit(right - left, Float.MAX_VALUE);
        }
        flushCurrentLine();
        if (line == null) {
            line = new PdfLine(left, right, alignment, leading);
        }
        PdfLine imageLine = line;

        // left and right in chunk is relative to the start of the line
        right = right - left;
        left = 0f;

        if ((image.alignment() & Image.RIGHT) == Image.RIGHT) {
            left = right - image.scaledWidth();
        } else if ((image.alignment() & Image.MIDDLE) == Image.MIDDLE) {
            left = left + ((right - left - image.scaledWidth()) / 2f);
        }
        Chunk imageChunk = new Chunk(image, left, 0);
        imageLine.add(new PdfChunk(imageChunk, null));
        addLine(imageLine);
        return imageLine.height();
    }

    /**
     * Gets the lines of a cell that can be drawn between certain limits.
     * <P>
     * Remark: all the lines that can be drawn are removed from the object!
     *
     * @param	top		the top of the part of the table that can be drawn
     * @param	bottom	the bottom of the part of the table that can be drawn
     * @return	an <CODE>ArrayList</CODE> of <CODE>PdfLine</CODE>s
     */

    public ArrayList getLines(float top, float bottom) {
        float lineHeight;
        float currentPosition = Math.min(top(), top);
        setTop(currentPosition + cellspacing);
        ArrayList result = new ArrayList();

        // if the bottom of the page is higher than the top of the cell: do nothing
        if (top() < bottom) {
            return result;
        }
        
        // we loop over the lines
        int size = lines.size();
        boolean aboveBottom = true;
        for (int i = 0; i < size && aboveBottom; i++) {
            line = (PdfLine) lines.get(i);
            lineHeight = line.height();
            currentPosition -= lineHeight;
            // if the currentPosition is higher than the bottom, we add the line to the result
            if (currentPosition > (bottom + cellpadding + getBorderWidthInside(BOTTOM))) {
                result.add(line);
            } else {
                aboveBottom = false;
            }
        }
        // if the bottom of the cell is higher than the bottom of the page, the cell is written, so we can remove all lines
        float difference = 0f;
        if (!header) {
            if (aboveBottom) {
                lines = new ArrayList();
                contentHeight = 0f;
            } else {
                size = result.size();
                for (int i = 0; i < size; i++) {
                    line = removeLine(0);
                    difference += line.height();
                }
            }
        }
        if (difference > 0) {
            Image image;
            for (Iterator i = images.iterator(); i.hasNext();) {
                image = (Image) i.next();
                image.setAbsolutePosition(image.absoluteX(), image.absoluteY() - difference - leading);
            }
        }
        return result;
    }

    /**
     * Gets the images of a cell that can be drawn between certain limits.
     * <P>
     * Remark: all the lines that can be drawn are removed from the object!
     *
     * @param	top		the top of the part of the table that can be drawn
     * @param	bottom	the bottom of the part of the table that can be drawn
     * @return	an <CODE>ArrayList</CODE> of <CODE>Image</CODE>s
     */

    public ArrayList getImages(float top, float bottom) {

        // if the bottom of the page is higher than the top of the cell: do nothing
        if (top() < bottom) {
            return new ArrayList();
        }
        top = Math.min(top(), top);
        // initialisations
        Image image;
        float height;
        ArrayList result = new ArrayList();
        // we loop over the images
        for (Iterator i = images.iterator(); i.hasNext() && !header;) {
            image = (Image) i.next();
            height = image.absoluteY();
            // if the currentPosition is higher than the bottom, we add the line to the result
            if (top - height > (bottom + cellpadding)) {
                image.setAbsolutePosition(image.absoluteX(), top - height);
                result.add(image);
                i.remove();
            }
        }
        return result;
    }

    /**
     * Checks if this cell belongs to the header of a <CODE>PdfTable</CODE>.
     *
     * @return	<CODE>void</CODE>
     */

    boolean isHeader() {
        return header;
    }

    /**
     * Indicates that this cell belongs to the header of a <CODE>PdfTable</CODE>.
     */

    void setHeader() {
        header = true;
    }

    /**
     * Checks if the cell may be removed.
     * <P>
     * Headers may allways be removed, even if they are drawn only partially:
     * they will be repeated on each following page anyway!
     *
     * @return	<CODE>true</CODE> if all the lines are allready drawn; <CODE>false</CODE> otherwise.
     */

    boolean mayBeRemoved() {
        return (header || (lines.size() == 0 && images.size() == 0));
    }

    /**
     * Returns the number of lines in the cell.
     *
     * @return	a value
     */

    public int size() {
        return lines.size();
    }

    /**
     * Returns the number of lines in the cell that are not empty.
     *
     * @return	a value
     */

    public int remainingLines() {
        if (lines.size() == 0) return 0;
        int result = 0;
        int size = lines.size();
        PdfLine line;
        for (int i = 0; i < size; i++) {
            line = (PdfLine) lines.get(i);
            if (line.size() > 0) result++;
        }
        return result;
    }

    /**
     * Returns the height needed to draw the remaining text.
     *
     * @return a height
     */

    public float remainingHeight() {
        float result = 0f;
        for (Iterator i = images.iterator(); i.hasNext();) {
            Image image = (Image) i.next();
            result += image.scaledHeight();
        }
        return remainingLines() * leading + 2 * cellpadding + cellspacing + result + leading / 2.5f;
    }
    
    // methods to retrieve membervariables
    
    /**
     * Gets the leading of a cell.
     *
     * @return	the leading of the lines is the cell.
     */

    public float leading() {
        return leading;
    }

    /**
     * Gets the number of the row this cell is in..
     *
     * @return	a number
     */

    public int rownumber() {
        return rownumber;
    }

    /**
     * Gets the rowspan of a cell.
     *
     * @return	the rowspan of the cell
     */

    public int rowspan() {
        return rowspan;
    }

    /**
     * Gets the cellspacing of a cell.
     *
     * @return	a value
     */

    public float cellspacing() {
        return cellspacing;
    }

    /**
     * Gets the cellpadding of a cell..
     *
     * @return	a value
     */

    public float cellpadding() {
        return cellpadding;
    }

    /**
     * Processes all actions contained in the cell.
     * @param element	an element in the cell
     * @param action	an action that should be coupled to the cell
     * @param allActions
     */

    protected void processActions(Element element, PdfAction action, ArrayList allActions) {
        if (element.type() == Element.ANCHOR) {
            String url = ((Anchor) element).reference();
            if (url != null) {
                action = new PdfAction(url);
            }
        }
        Iterator i;
        switch (element.type()) {
            case Element.PHRASE:
            case Element.SECTION:
            case Element.ANCHOR:
            case Element.CHAPTER:
            case Element.LISTITEM:
            case Element.PARAGRAPH:
                for (i = ((ArrayList) element).iterator(); i.hasNext();) {
                    processActions((Element) i.next(), action, allActions);
                }
                break;
            case Element.CHUNK:
                allActions.add(action);
                break;
            case Element.LIST:
                for (i = ((List) element).getItems().iterator(); i.hasNext();) {
                    processActions((Element) i.next(), action, allActions);
                }
                break;
            default:
                int n = element.getChunks().size();
                while (n-- > 0)
                    allActions.add(action);
                break;
        }
    }

    /**
     * This is the number of the group the cell is in.
     */
    private int groupNumber;

    /**
     * Gets the number of the group this cell is in..
     *
     * @return	a number
     */

    public int getGroupNumber() {
        return groupNumber;
    }

    /**
     * Sets the group number.
     * @param number
     */

    void setGroupNumber(int number) {
        groupNumber = number;
    }

    /**
     * Gets a Rectangle that is altered to fit on the page.
     *
     * @param	top		the top position
     * @param	bottom	the bottom position
     * @return	a <CODE>Rectangle</CODE>
     */

    public Rectangle rectangle(float top, float bottom) {
        Rectangle tmp = new Rectangle(left(), bottom(), right(), top());
        tmp.cloneNonPositionParameters(this);
        if (top() > top) {
            tmp.setTop(top);
            tmp.setBorder(border - (border & TOP));
        }
        if (bottom() < bottom) {
            tmp.setBottom(bottom);
            tmp.setBorder(border - (border & BOTTOM));
        }
        return tmp;
    }

    /**
     * Sets the value of {@link #useAscender}.
     * @param use use ascender height if true
     */
    public void setUseAscender(boolean use) {
        useAscender = use;
    }

    /**
     * Gets the value of {@link #useAscender}
     * @return useAscender
     */
    public boolean isUseAscender() {
        return useAscender;
    }

    /**
     * Sets the value of {@link #useDescender}.
     * @param use use descender height if true
     */
    public void setUseDescender(boolean use) {
        useDescender = use;
    }

    /**
     * gets the value of {@link #useDescender }
     * @return useDescender
     */
    public boolean isUseDescender() {
        return useDescender;
    }

    /**
     * Sets the value of {@link #useBorderPadding}.
     * @param use adjust layour for borders if true
     */
    public void setUseBorderPadding(boolean use) {
        useBorderPadding = use;
    }

    /**
     * Gets the value of {@link #useBorderPadding}.
     * @return useBorderPadding
     */
    public boolean isUseBorderPadding() {
        return useBorderPadding;
    }

}