001/*
002 * $Id: PdfAnnotation.java 4784 2011-03-15 08:33:00Z blowagie $
003 *
004 * This file is part of the iText (R) project.
005 * Copyright (c) 1998-2011 1T3XT BVBA
006 * Authors: Bruno Lowagie, Paulo Soares, et al.
007 *
008 * This program is free software; you can redistribute it and/or modify
009 * it under the terms of the GNU Affero General Public License version 3
010 * as published by the Free Software Foundation with the addition of the
011 * following permission added to Section 15 as permitted in Section 7(a):
012 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY 1T3XT,
013 * 1T3XT DISCLAIMS THE WARRANTY OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
014 *
015 * This program is distributed in the hope that it will be useful, but
016 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
017 * or FITNESS FOR A PARTICULAR PURPOSE.
018 * See the GNU Affero General Public License for more details.
019 * You should have received a copy of the GNU Affero General Public License
020 * along with this program; if not, see http://www.gnu.org/licenses or write to
021 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
022 * Boston, MA, 02110-1301 USA, or download the license from the following URL:
023 * http://itextpdf.com/terms-of-use/
024 *
025 * The interactive user interfaces in modified source and object code versions
026 * of this program must display Appropriate Legal Notices, as required under
027 * Section 5 of the GNU Affero General Public License.
028 *
029 * In accordance with Section 7(b) of the GNU Affero General Public License,
030 * a covered work must retain the producer line in every PDF that is created
031 * or manipulated using iText.
032 *
033 * You can be released from the requirements of the license by purchasing
034 * a commercial license. Buying such a license is mandatory as soon as you
035 * develop commercial activities involving the iText software without
036 * disclosing the source code of your own applications.
037 * These activities include: offering paid services to customers as an ASP,
038 * serving PDFs on the fly in a web application, shipping iText with a closed
039 * source product.
040 *
041 * For more information, please contact iText Software Corp. at this
042 * address: sales@itextpdf.com
043 */
044package com.itextpdf.text.pdf;
045
046import java.io.IOException;
047import java.util.HashMap;
048import java.util.HashSet;
049
050import com.itextpdf.text.BaseColor;
051import com.itextpdf.text.Rectangle;
052import com.itextpdf.text.error_messages.MessageLocalization;
053/**
054 * A <CODE>PdfAnnotation</CODE> is a note that is associated with a page.
055 *
056 * @see         PdfDictionary
057 */
058
059public class PdfAnnotation extends PdfDictionary {
060    /** highlight attributename */
061    public static final PdfName HIGHLIGHT_NONE = PdfName.N;
062    /** highlight attributename */
063    public static final PdfName HIGHLIGHT_INVERT = PdfName.I;
064    /** highlight attributename */
065    public static final PdfName HIGHLIGHT_OUTLINE = PdfName.O;
066    /** highlight attributename */
067    public static final PdfName HIGHLIGHT_PUSH = PdfName.P;
068    /** highlight attributename */
069    public static final PdfName HIGHLIGHT_TOGGLE = PdfName.T;
070    /** flagvalue */
071    public static final int FLAGS_INVISIBLE = 1;
072    /** flagvalue */
073    public static final int FLAGS_HIDDEN = 2;
074    /** flagvalue */
075    public static final int FLAGS_PRINT = 4;
076    /** flagvalue */
077    public static final int FLAGS_NOZOOM = 8;
078    /** flagvalue */
079    public static final int FLAGS_NOROTATE = 16;
080    /** flagvalue */
081    public static final int FLAGS_NOVIEW = 32;
082    /** flagvalue */
083    public static final int FLAGS_READONLY = 64;
084    /** flagvalue */
085    public static final int FLAGS_LOCKED = 128;
086    /** flagvalue */
087    public static final int FLAGS_TOGGLENOVIEW = 256;
088    /** appearance attributename */
089    public static final PdfName APPEARANCE_NORMAL = PdfName.N;
090    /** appearance attributename */
091    public static final PdfName APPEARANCE_ROLLOVER = PdfName.R;
092    /** appearance attributename */
093    public static final PdfName APPEARANCE_DOWN = PdfName.D;
094    /** attributevalue */
095    public static final PdfName AA_ENTER = PdfName.E;
096    /** attributevalue */
097    public static final PdfName AA_EXIT = PdfName.X;
098    /** attributevalue */
099    public static final PdfName AA_DOWN = PdfName.D;
100    /** attributevalue */
101    public static final PdfName AA_UP = PdfName.U;
102    /** attributevalue */
103    public static final PdfName AA_FOCUS = PdfName.FO;
104    /** attributevalue */
105    public static final PdfName AA_BLUR = PdfName.BL;
106    /** attributevalue */
107    public static final PdfName AA_JS_KEY = PdfName.K;
108    /** attributevalue */
109    public static final PdfName AA_JS_FORMAT = PdfName.F;
110    /** attributevalue */
111    public static final PdfName AA_JS_CHANGE = PdfName.V;
112    /** attributevalue */
113    public static final PdfName AA_JS_OTHER_CHANGE = PdfName.C;
114    /** attributevalue */
115    public static final int MARKUP_HIGHLIGHT = 0;
116    /** attributevalue */
117    public static final int MARKUP_UNDERLINE = 1;
118    /** attributevalue */
119    public static final int MARKUP_STRIKEOUT = 2;
120    /**
121     * attributevalue
122     * @since 2.1.3
123     */
124    public static final int MARKUP_SQUIGGLY = 3;
125
126    protected PdfWriter writer;
127    /**
128     * Reference to this annotation.
129     * @since   2.1.6; was removed in 2.1.5, but restored in 2.1.6
130     */
131    protected PdfIndirectReference reference;
132    protected HashSet<PdfTemplate> templates;
133    protected boolean form = false;
134    protected boolean annotation = true;
135
136    /** Holds value of property used. */
137    protected boolean used = false;
138
139    /** Holds value of property placeInPage. */
140    private int placeInPage = -1;
141
142    // constructors
143    public PdfAnnotation(PdfWriter writer, Rectangle rect) {
144        this.writer = writer;
145        if (rect != null)
146            put(PdfName.RECT, new PdfRectangle(rect));
147    }
148
149/**
150 * Constructs a new <CODE>PdfAnnotation</CODE> of subtype text.
151 * @param writer
152 * @param llx
153 * @param lly
154 * @param urx
155 * @param ury
156 * @param title
157 * @param content
158 */
159
160    public PdfAnnotation(PdfWriter writer, float llx, float lly, float urx, float ury, PdfString title, PdfString content) {
161        this.writer = writer;
162        put(PdfName.SUBTYPE, PdfName.TEXT);
163        put(PdfName.T, title);
164        put(PdfName.RECT, new PdfRectangle(llx, lly, urx, ury));
165        put(PdfName.CONTENTS, content);
166    }
167
168/**
169 * Constructs a new <CODE>PdfAnnotation</CODE> of subtype link (Action).
170 * @param writer
171 * @param llx
172 * @param lly
173 * @param urx
174 * @param ury
175 * @param action
176 */
177
178    public PdfAnnotation(PdfWriter writer, float llx, float lly, float urx, float ury, PdfAction action) {
179        this.writer = writer;
180        put(PdfName.SUBTYPE, PdfName.LINK);
181        put(PdfName.RECT, new PdfRectangle(llx, lly, urx, ury));
182        put(PdfName.A, action);
183        put(PdfName.BORDER, new PdfBorderArray(0, 0, 0));
184        put(PdfName.C, new PdfColor(0x00, 0x00, 0xFF));
185    }
186
187    /**
188     * Creates a screen PdfAnnotation
189     * @param writer
190     * @param rect
191     * @param clipTitle
192     * @param fs
193     * @param mimeType
194     * @param playOnDisplay
195     * @return a screen PdfAnnotation
196     * @throws IOException
197     */
198    public static PdfAnnotation createScreen(PdfWriter writer, Rectangle rect, String clipTitle, PdfFileSpecification fs,
199                                             String mimeType, boolean playOnDisplay) throws IOException {
200        PdfAnnotation ann = new PdfAnnotation(writer, rect);
201        ann.put(PdfName.SUBTYPE, PdfName.SCREEN);
202        ann.put (PdfName.F, new PdfNumber(FLAGS_PRINT));
203        ann.put(PdfName.TYPE, PdfName.ANNOT);
204        ann.setPage();
205        PdfIndirectReference ref = ann.getIndirectReference();
206        PdfAction action = PdfAction.rendition(clipTitle,fs,mimeType, ref);
207        PdfIndirectReference actionRef = writer.addToBody(action).getIndirectReference();
208        // for play on display add trigger event
209        if (playOnDisplay)
210        {
211            PdfDictionary aa = new PdfDictionary();
212            aa.put(new PdfName("PV"), actionRef);
213            ann.put(PdfName.AA, aa);
214        }
215        ann.put(PdfName.A, actionRef);
216        return ann;
217    }
218
219    /**
220     * Returns an indirect reference to the annotation
221     * @return the indirect reference
222     */
223    public PdfIndirectReference getIndirectReference() {
224        if (reference == null) {
225                reference = writer.getPdfIndirectReference();
226        }
227        return reference;
228    }
229
230    /**
231     * @param writer
232     * @param rect
233     * @param title
234     * @param contents
235     * @param open
236     * @param icon
237     * @return a PdfAnnotation
238     */
239    public static PdfAnnotation createText(PdfWriter writer, Rectangle rect, String title, String contents, boolean open, String icon) {
240        PdfAnnotation annot = new PdfAnnotation(writer, rect);
241        annot.put(PdfName.SUBTYPE, PdfName.TEXT);
242        if (title != null)
243            annot.put(PdfName.T, new PdfString(title, PdfObject.TEXT_UNICODE));
244        if (contents != null)
245            annot.put(PdfName.CONTENTS, new PdfString(contents, PdfObject.TEXT_UNICODE));
246        if (open)
247            annot.put(PdfName.OPEN, PdfBoolean.PDFTRUE);
248        if (icon != null) {
249            annot.put(PdfName.NAME, new PdfName(icon));
250        }
251        return annot;
252    }
253
254    /**
255     * Creates a link.
256     * @param writer
257     * @param rect
258     * @param highlight
259     * @return A PdfAnnotation
260     */
261    protected static PdfAnnotation createLink(PdfWriter writer, Rectangle rect, PdfName highlight) {
262        PdfAnnotation annot = new PdfAnnotation(writer, rect);
263        annot.put(PdfName.SUBTYPE, PdfName.LINK);
264        if (!highlight.equals(HIGHLIGHT_INVERT))
265            annot.put(PdfName.H, highlight);
266        return annot;
267    }
268
269    /**
270     * Creates an Annotation with an Action.
271     * @param writer
272     * @param rect
273     * @param highlight
274     * @param action
275     * @return A PdfAnnotation
276     */
277    public static PdfAnnotation createLink(PdfWriter writer, Rectangle rect, PdfName highlight, PdfAction action) {
278        PdfAnnotation annot = createLink(writer, rect, highlight);
279        annot.putEx(PdfName.A, action);
280        return annot;
281    }
282
283    /**
284     * Creates an Annotation with an local destination.
285     * @param writer
286     * @param rect
287     * @param highlight
288     * @param namedDestination
289     * @return A PdfAnnotation
290     */
291    public static PdfAnnotation createLink(PdfWriter writer, Rectangle rect, PdfName highlight, String namedDestination) {
292        PdfAnnotation annot = createLink(writer, rect, highlight);
293        annot.put(PdfName.DEST, new PdfString(namedDestination));
294        return annot;
295    }
296
297    /**
298     * Creates an Annotation with a PdfDestination.
299     * @param writer
300     * @param rect
301     * @param highlight
302     * @param page
303     * @param dest
304     * @return A PdfAnnotation
305     */
306    public static PdfAnnotation createLink(PdfWriter writer, Rectangle rect, PdfName highlight, int page, PdfDestination dest) {
307        PdfAnnotation annot = createLink(writer, rect, highlight);
308        PdfIndirectReference ref = writer.getPageReference(page);
309        dest.addPage(ref);
310        annot.put(PdfName.DEST, dest);
311        return annot;
312    }
313
314    /**
315     * Add some free text to the document.
316     * @param writer
317     * @param rect
318     * @param contents
319     * @param defaultAppearance
320     * @return A PdfAnnotation
321     */
322    public static PdfAnnotation createFreeText(PdfWriter writer, Rectangle rect, String contents, PdfContentByte defaultAppearance) {
323        PdfAnnotation annot = new PdfAnnotation(writer, rect);
324        annot.put(PdfName.SUBTYPE, PdfName.FREETEXT);
325        annot.put(PdfName.CONTENTS, new PdfString(contents, PdfObject.TEXT_UNICODE));
326        annot.setDefaultAppearanceString(defaultAppearance);
327        return annot;
328    }
329
330    /**
331     * Adds a line to the document. Move over the line and a tooltip is shown.
332     * @param writer
333     * @param rect
334     * @param contents
335     * @param x1
336     * @param y1
337     * @param x2
338     * @param y2
339     * @return A PdfAnnotation
340     */
341    public static PdfAnnotation createLine(PdfWriter writer, Rectangle rect, String contents, float x1, float y1, float x2, float y2) {
342        PdfAnnotation annot = new PdfAnnotation(writer, rect);
343        annot.put(PdfName.SUBTYPE, PdfName.LINE);
344        annot.put(PdfName.CONTENTS, new PdfString(contents, PdfObject.TEXT_UNICODE));
345        PdfArray array = new PdfArray(new PdfNumber(x1));
346        array.add(new PdfNumber(y1));
347        array.add(new PdfNumber(x2));
348        array.add(new PdfNumber(y2));
349        annot.put(PdfName.L, array);
350        return annot;
351    }
352
353    /**
354     * Adds a circle or a square that shows a tooltip when you pass over it.
355     * @param writer
356     * @param rect
357     * @param contents The tooltip
358     * @param square true if you want a square, false if you want a circle
359     * @return A PdfAnnotation
360     */
361    public static PdfAnnotation createSquareCircle(PdfWriter writer, Rectangle rect, String contents, boolean square) {
362        PdfAnnotation annot = new PdfAnnotation(writer, rect);
363        if (square)
364            annot.put(PdfName.SUBTYPE, PdfName.SQUARE);
365        else
366            annot.put(PdfName.SUBTYPE, PdfName.CIRCLE);
367        annot.put(PdfName.CONTENTS, new PdfString(contents, PdfObject.TEXT_UNICODE));
368        return annot;
369    }
370
371    public static PdfAnnotation createMarkup(PdfWriter writer, Rectangle rect, String contents, int type, float quadPoints[]) {
372        PdfAnnotation annot = new PdfAnnotation(writer, rect);
373        PdfName name = PdfName.HIGHLIGHT;
374        switch (type) {
375            case MARKUP_UNDERLINE:
376                name = PdfName.UNDERLINE;
377                break;
378            case MARKUP_STRIKEOUT:
379                name = PdfName.STRIKEOUT;
380                break;
381            case MARKUP_SQUIGGLY:
382                name = PdfName.SQUIGGLY;
383                break;
384        }
385        annot.put(PdfName.SUBTYPE, name);
386        annot.put(PdfName.CONTENTS, new PdfString(contents, PdfObject.TEXT_UNICODE));
387        PdfArray array = new PdfArray();
388        for (int k = 0; k < quadPoints.length; ++k)
389                array.add(new PdfNumber(quadPoints[k]));
390        annot.put(PdfName.QUADPOINTS, array);
391        return annot;
392    }
393
394    /**
395     * Adds a Stamp to your document. Move over the stamp and a tooltip is shown
396     * @param writer
397     * @param rect
398     * @param contents
399     * @param name
400     * @return A PdfAnnotation
401     */
402    public static PdfAnnotation createStamp(PdfWriter writer, Rectangle rect, String contents, String name) {
403        PdfAnnotation annot = new PdfAnnotation(writer, rect);
404        annot.put(PdfName.SUBTYPE, PdfName.STAMP);
405        annot.put(PdfName.CONTENTS, new PdfString(contents, PdfObject.TEXT_UNICODE));
406        annot.put(PdfName.NAME, new PdfName(name));
407        return annot;
408    }
409
410    public static PdfAnnotation createInk(PdfWriter writer, Rectangle rect, String contents, float inkList[][]) {
411        PdfAnnotation annot = new PdfAnnotation(writer, rect);
412        annot.put(PdfName.SUBTYPE, PdfName.INK);
413        annot.put(PdfName.CONTENTS, new PdfString(contents, PdfObject.TEXT_UNICODE));
414        PdfArray outer = new PdfArray();
415        for (int k = 0; k < inkList.length; ++k) {
416            PdfArray inner = new PdfArray();
417            float deep[] = inkList[k];
418            for (int j = 0; j < deep.length; ++j)
419                inner.add(new PdfNumber(deep[j]));
420            outer.add(inner);
421        }
422        annot.put(PdfName.INKLIST, outer);
423        return annot;
424    }
425
426    /** Creates a file attachment annotation.
427     * @param writer the <CODE>PdfWriter</CODE>
428     * @param rect the dimensions in the page of the annotation
429     * @param contents the file description
430     * @param fileStore an array with the file. If it's <CODE>null</CODE>
431     * the file will be read from the disk
432     * @param file the path to the file. It will only be used if
433     * <CODE>fileStore</CODE> is not <CODE>null</CODE>
434     * @param fileDisplay the actual file name stored in the pdf
435     * @throws IOException on error
436     * @return the annotation
437     */
438    public static PdfAnnotation createFileAttachment(PdfWriter writer, Rectangle rect, String contents, byte fileStore[], String file, String fileDisplay) throws IOException {
439        return createFileAttachment(writer, rect, contents, PdfFileSpecification.fileEmbedded(writer, file, fileDisplay, fileStore));
440    }
441
442    /** Creates a file attachment annotation
443     * @param writer
444     * @param rect
445     * @param contents
446     * @param fs
447     * @return the annotation
448     * @throws IOException
449     */
450    public static PdfAnnotation createFileAttachment(PdfWriter writer, Rectangle rect, String contents, PdfFileSpecification fs) throws IOException {
451        PdfAnnotation annot = new PdfAnnotation(writer, rect);
452        annot.put(PdfName.SUBTYPE, PdfName.FILEATTACHMENT);
453        if (contents != null)
454            annot.put(PdfName.CONTENTS, new PdfString(contents, PdfObject.TEXT_UNICODE));
455        annot.put(PdfName.FS, fs.getReference());
456        return annot;
457    }
458
459    /**
460     * Adds a popup to your document.
461     * @param writer
462     * @param rect
463     * @param contents
464     * @param open
465     * @return A PdfAnnotation
466     */
467    public static PdfAnnotation createPopup(PdfWriter writer, Rectangle rect, String contents, boolean open) {
468        PdfAnnotation annot = new PdfAnnotation(writer, rect);
469        annot.put(PdfName.SUBTYPE, PdfName.POPUP);
470        if (contents != null)
471            annot.put(PdfName.CONTENTS, new PdfString(contents, PdfObject.TEXT_UNICODE));
472        if (open)
473            annot.put(PdfName.OPEN, PdfBoolean.PDFTRUE);
474        return annot;
475    }
476
477    /**
478     * Creates a polygon or -line annotation
479     * @param writer the PdfWriter
480     * @param rect the annotation position
481     * @param contents the textual content of the annotation
482     * @param polygon if true, the we're creating a polygon annotation, if false, a polyline
483     * @param vertices an array with the vertices of the polygon or -line
484     * @since 5.0.2
485     */
486    public static PdfAnnotation createPolygonPolyline(
487        PdfWriter writer, Rectangle rect, String contents, boolean polygon, PdfArray vertices) {
488        PdfAnnotation annot = new PdfAnnotation(writer, rect);
489        if (polygon)
490                annot.put(PdfName.SUBTYPE, PdfName.POLYGON);
491        else
492                annot.put(PdfName.SUBTYPE, PdfName.POLYLINE);
493        annot.put(PdfName.CONTENTS, new PdfString(contents, PdfObject.TEXT_UNICODE));
494        annot.put(PdfName.VERTICES, new PdfArray(vertices));
495        return annot;
496    }
497    
498    public void setDefaultAppearanceString(PdfContentByte cb) {
499        byte b[] = cb.getInternalBuffer().toByteArray();
500        int len = b.length;
501        for (int k = 0; k < len; ++k) {
502            if (b[k] == '\n')
503                b[k] = 32;
504        }
505        put(PdfName.DA, new PdfString(b));
506    }
507
508    public void setFlags(int flags) {
509        if (flags == 0)
510            remove(PdfName.F);
511        else
512            put(PdfName.F, new PdfNumber(flags));
513    }
514
515    public void setBorder(PdfBorderArray border) {
516        put(PdfName.BORDER, border);
517    }
518
519    public void setBorderStyle(PdfBorderDictionary border) {
520        put(PdfName.BS, border);
521    }
522
523    /**
524     * Sets the annotation's highlighting mode. The values can be
525     * <CODE>HIGHLIGHT_NONE</CODE>, <CODE>HIGHLIGHT_INVERT</CODE>,
526     * <CODE>HIGHLIGHT_OUTLINE</CODE> and <CODE>HIGHLIGHT_PUSH</CODE>;
527     * @param highlight the annotation's highlighting mode
528     */
529    public void setHighlighting(PdfName highlight) {
530        if (highlight.equals(HIGHLIGHT_INVERT))
531            remove(PdfName.H);
532        else
533            put(PdfName.H, highlight);
534    }
535
536    public void setAppearance(PdfName ap, PdfTemplate template) {
537        PdfDictionary dic = (PdfDictionary)get(PdfName.AP);
538        if (dic == null)
539            dic = new PdfDictionary();
540        dic.put(ap, template.getIndirectReference());
541        put(PdfName.AP, dic);
542        if (!form)
543            return;
544        if (templates == null)
545            templates = new HashSet<PdfTemplate>();
546        templates.add(template);
547    }
548
549    public void setAppearance(PdfName ap, String state, PdfTemplate template) {
550        PdfDictionary dicAp = (PdfDictionary)get(PdfName.AP);
551        if (dicAp == null)
552            dicAp = new PdfDictionary();
553
554        PdfDictionary dic;
555        PdfObject obj = dicAp.get(ap);
556        if (obj != null && obj.isDictionary())
557            dic = (PdfDictionary)obj;
558        else
559            dic = new PdfDictionary();
560        dic.put(new PdfName(state), template.getIndirectReference());
561        dicAp.put(ap, dic);
562        put(PdfName.AP, dicAp);
563        if (!form)
564            return;
565        if (templates == null)
566            templates = new HashSet<PdfTemplate>();
567        templates.add(template);
568    }
569
570    public void setAppearanceState(String state) {
571        if (state == null) {
572            remove(PdfName.AS);
573            return;
574        }
575        put(PdfName.AS, new PdfName(state));
576    }
577
578    public void setColor(BaseColor color) {
579        put(PdfName.C, new PdfColor(color));
580    }
581
582    public void setTitle(String title) {
583        if (title == null) {
584            remove(PdfName.T);
585            return;
586        }
587        put(PdfName.T, new PdfString(title, PdfObject.TEXT_UNICODE));
588    }
589
590    public void setPopup(PdfAnnotation popup) {
591        put(PdfName.POPUP, popup.getIndirectReference());
592        popup.put(PdfName.PARENT, getIndirectReference());
593    }
594
595    public void setAction(PdfAction action) {
596        put(PdfName.A, action);
597    }
598
599    public void setAdditionalActions(PdfName key, PdfAction action) {
600        PdfDictionary dic;
601        PdfObject obj = get(PdfName.AA);
602        if (obj != null && obj.isDictionary())
603            dic = (PdfDictionary)obj;
604        else
605            dic = new PdfDictionary();
606        dic.put(key, action);
607        put(PdfName.AA, dic);
608    }
609
610    /** Getter for property used.
611     * @return Value of property used.
612     */
613    public boolean isUsed() {
614        return used;
615    }
616
617    /** Setter for property used.
618     */
619    public void setUsed() {
620        used = true;
621    }
622
623    public HashSet<PdfTemplate> getTemplates() {
624        return templates;
625    }
626
627    /** Getter for property form.
628     * @return Value of property form.
629     */
630    public boolean isForm() {
631        return form;
632    }
633
634    /** Getter for property annotation.
635     * @return Value of property annotation.
636     */
637    public boolean isAnnotation() {
638        return annotation;
639    }
640
641    public void setPage(int page) {
642        put(PdfName.P, writer.getPageReference(page));
643    }
644
645    public void setPage() {
646        put(PdfName.P, writer.getCurrentPage());
647    }
648
649    /** Getter for property placeInPage.
650     * @return Value of property placeInPage.
651     */
652    public int getPlaceInPage() {
653        return placeInPage;
654    }
655
656    /** Places the annotation in a specified page that must be greater
657     * or equal to the current one. With <code>PdfStamper</code> the page
658     * can be any. The first page is 1.
659     * @param placeInPage New value of property placeInPage.
660     */
661    public void setPlaceInPage(int placeInPage) {
662        this.placeInPage = placeInPage;
663    }
664
665    public void setRotate(int v) {
666        put(PdfName.ROTATE, new PdfNumber(v));
667    }
668
669    PdfDictionary getMK() {
670        PdfDictionary mk = (PdfDictionary)get(PdfName.MK);
671        if (mk == null) {
672            mk = new PdfDictionary();
673            put(PdfName.MK, mk);
674        }
675        return mk;
676    }
677
678    public void setMKRotation(int rotation) {
679        getMK().put(PdfName.R, new PdfNumber(rotation));
680    }
681
682    public static PdfArray getMKColor(BaseColor color) {
683        PdfArray array = new PdfArray();
684        int type = ExtendedColor.getType(color);
685        switch (type) {
686            case ExtendedColor.TYPE_GRAY: {
687                array.add(new PdfNumber(((GrayColor)color).getGray()));
688                break;
689            }
690            case ExtendedColor.TYPE_CMYK: {
691                CMYKColor cmyk = (CMYKColor)color;
692                array.add(new PdfNumber(cmyk.getCyan()));
693                array.add(new PdfNumber(cmyk.getMagenta()));
694                array.add(new PdfNumber(cmyk.getYellow()));
695                array.add(new PdfNumber(cmyk.getBlack()));
696                break;
697            }
698            case ExtendedColor.TYPE_SEPARATION:
699            case ExtendedColor.TYPE_PATTERN:
700            case ExtendedColor.TYPE_SHADING:
701                throw new RuntimeException(MessageLocalization.getComposedMessage("separations.patterns.and.shadings.are.not.allowed.in.mk.dictionary"));
702            default:
703                array.add(new PdfNumber(color.getRed() / 255f));
704                array.add(new PdfNumber(color.getGreen() / 255f));
705                array.add(new PdfNumber(color.getBlue() / 255f));
706        }
707        return array;
708    }
709
710    public void setMKBorderColor(BaseColor color) {
711        if (color == null)
712            getMK().remove(PdfName.BC);
713        else
714            getMK().put(PdfName.BC, getMKColor(color));
715    }
716
717    public void setMKBackgroundColor(BaseColor color) {
718        if (color == null)
719            getMK().remove(PdfName.BG);
720        else
721            getMK().put(PdfName.BG, getMKColor(color));
722    }
723
724    public void setMKNormalCaption(String caption) {
725        getMK().put(PdfName.CA, new PdfString(caption, PdfObject.TEXT_UNICODE));
726    }
727
728    public void setMKRolloverCaption(String caption) {
729        getMK().put(PdfName.RC, new PdfString(caption, PdfObject.TEXT_UNICODE));
730    }
731
732    public void setMKAlternateCaption(String caption) {
733        getMK().put(PdfName.AC, new PdfString(caption, PdfObject.TEXT_UNICODE));
734    }
735
736    public void setMKNormalIcon(PdfTemplate template) {
737        getMK().put(PdfName.I, template.getIndirectReference());
738    }
739
740    public void setMKRolloverIcon(PdfTemplate template) {
741        getMK().put(PdfName.RI, template.getIndirectReference());
742    }
743
744    public void setMKAlternateIcon(PdfTemplate template) {
745        getMK().put(PdfName.IX, template.getIndirectReference());
746    }
747
748    public void setMKIconFit(PdfName scale, PdfName scalingType, float leftoverLeft, float leftoverBottom, boolean fitInBounds) {
749        PdfDictionary dic = new PdfDictionary();
750        if (!scale.equals(PdfName.A))
751            dic.put(PdfName.SW, scale);
752        if (!scalingType.equals(PdfName.P))
753            dic.put(PdfName.S, scalingType);
754        if (leftoverLeft != 0.5f || leftoverBottom != 0.5f) {
755            PdfArray array = new PdfArray(new PdfNumber(leftoverLeft));
756            array.add(new PdfNumber(leftoverBottom));
757            dic.put(PdfName.A, array);
758        }
759        if (fitInBounds)
760            dic.put(PdfName.FB, PdfBoolean.PDFTRUE);
761        getMK().put(PdfName.IF, dic);
762    }
763
764    public void setMKTextPosition(int tp) {
765        getMK().put(PdfName.TP, new PdfNumber(tp));
766    }
767
768    /**
769     * Sets the layer this annotation belongs to.
770     * @param layer the layer this annotation belongs to
771     */
772    public void setLayer(PdfOCG layer) {
773        put(PdfName.OC, layer.getRef());
774    }
775
776    /**
777     * Sets the name of the annotation.
778     * With this name the annotation can be identified among
779     * all the annotations on a page (it has to be unique).
780     */
781    public void setName(String name) {
782        put(PdfName.NM, new PdfString(name));
783    }
784
785    /**
786     * This class processes links from imported pages so that they may be active. The following example code reads a group
787     * of files and places them all on the output PDF, four pages in a single page, keeping the links active.
788     * <pre>
789     * String[] files = new String[] {&quot;input1.pdf&quot;, &quot;input2.pdf&quot;};
790     * String outputFile = &quot;output.pdf&quot;;
791     * int firstPage=1;
792     * Document document = new Document();
793     * PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(outputFile));
794     * document.setPageSize(PageSize.A4);
795     * float W = PageSize.A4.getWidth() / 2;
796     * float H = PageSize.A4.getHeight() / 2;
797     * document.open();
798     * PdfContentByte cb = writer.getDirectContent();
799     * for (int i = 0; i &lt; files.length; i++) {
800     *    PdfReader currentReader = new PdfReader(files[i]);
801     *    currentReader.consolidateNamedDestinations();
802     *    for (int page = 1; page &lt;= currentReader.getNumberOfPages(); page++) {
803     *        PdfImportedPage importedPage = writer.getImportedPage(currentReader, page);
804     *        float a = 0.5f;
805     *        float e = (page % 2 == 0) ? W : 0;
806     *        float f = (page % 4 == 1 || page % 4 == 2) ? H : 0;
807     *        ArrayList links = currentReader.getLinks(page);
808     *        cb.addTemplate(importedPage, a, 0, 0, a, e, f);
809     *        for (int j = 0; j &lt; links.size(); j++) {
810     *            PdfAnnotation.PdfImportedLink link = (PdfAnnotation.PdfImportedLink)links.get(j);
811     *            if (link.isInternal()) {
812     *                int dPage = link.getDestinationPage();
813     *                int newDestPage = (dPage-1)/4 + firstPage;
814     *                float ee = (dPage % 2 == 0) ? W : 0;
815     *                float ff = (dPage % 4 == 1 || dPage % 4 == 2) ? H : 0;
816     *                link.setDestinationPage(newDestPage);
817     *                link.transformDestination(a, 0, 0, a, ee, ff);
818     *            }
819     *            link.transformRect(a, 0, 0, a, e, f);
820     *            writer.addAnnotation(link.createAnnotation(writer));
821     *        }
822     *        if (page % 4 == 0)
823     *        document.newPage();
824     *    }
825     *    if (i &lt; files.length - 1)
826     *    document.newPage();
827     *    firstPage += (currentReader.getNumberOfPages()+3)/4;
828     * }
829     * document.close();
830     * </pre>
831     */
832    public static class PdfImportedLink {
833        float llx, lly, urx, ury;
834        HashMap<PdfName, PdfObject> parameters = new HashMap<PdfName, PdfObject>();
835        PdfArray destination = null;
836        int newPage=0;
837
838        PdfImportedLink(PdfDictionary annotation) {
839                parameters.putAll(annotation.hashMap);
840                try {
841                        destination = (PdfArray) parameters.remove(PdfName.DEST);
842                } catch (ClassCastException ex) {
843                        throw new IllegalArgumentException(MessageLocalization.getComposedMessage("you.have.to.consolidate.the.named.destinations.of.your.reader"));
844                }
845                if (destination != null) {
846                        destination = new PdfArray(destination);
847                }
848                PdfArray rc = (PdfArray) parameters.remove(PdfName.RECT);
849                llx = rc.getAsNumber(0).floatValue();
850                lly = rc.getAsNumber(1).floatValue();
851                urx = rc.getAsNumber(2).floatValue();
852                ury = rc.getAsNumber(3).floatValue();
853        }
854
855        public boolean isInternal() {
856                return destination != null;
857        }
858
859        public int getDestinationPage() {
860                if (!isInternal()) return 0;
861
862                // here destination is something like
863                // [132 0 R, /XYZ, 29.3898, 731.864502, null]
864                PdfIndirectReference ref = destination.getAsIndirectObject(0);
865
866                PRIndirectReference pr = (PRIndirectReference) ref;
867                PdfReader r = pr.getReader();
868                for (int i = 1; i <= r.getNumberOfPages(); i++) {
869                        PRIndirectReference pp = r.getPageOrigRef(i);
870                        if (pp.getGeneration() == pr.getGeneration() && pp.getNumber() == pr.getNumber()) return i;
871                }
872                throw new IllegalArgumentException(MessageLocalization.getComposedMessage("page.not.found"));
873        }
874
875        public void setDestinationPage(int newPage) {
876                if (!isInternal()) throw new IllegalArgumentException(MessageLocalization.getComposedMessage("cannot.change.destination.of.external.link"));
877                this.newPage=newPage;
878        }
879
880        public void transformDestination(float a, float b, float c, float d, float e, float f) {
881                if (!isInternal()) throw new IllegalArgumentException(MessageLocalization.getComposedMessage("cannot.change.destination.of.external.link"));
882                if (destination.getAsName(1).equals(PdfName.XYZ)) {
883                        float x = destination.getAsNumber(2).floatValue();
884                        float y = destination.getAsNumber(3).floatValue();
885                        float xx = x * a + y * c + e;
886                        float yy = x * b + y * d + f;
887                        destination.set(2, new PdfNumber(xx));
888                        destination.set(3, new PdfNumber(yy));
889                }
890        }
891
892        public void transformRect(float a, float b, float c, float d, float e, float f) {
893                float x = llx * a + lly * c + e;
894                float y = llx * b + lly * d + f;
895                llx = x;
896                lly = y;
897                x = urx * a + ury * c + e;
898                y = urx * b + ury * d + f;
899                urx = x;
900                ury = y;
901        }
902
903        public PdfAnnotation createAnnotation(PdfWriter writer) {
904                PdfAnnotation annotation = new PdfAnnotation(writer, new Rectangle(llx, lly, urx, ury));
905                if (newPage != 0) {
906                PdfIndirectReference ref = writer.getPageReference(newPage);
907                destination.set(0, ref);
908                }
909                if (destination != null) annotation.put(PdfName.DEST, destination);
910                annotation.hashMap.putAll(parameters);
911                return annotation;
912        }
913
914        /**
915         * Returns a String representation of the link.
916         * @return      a String representation of the imported link
917         * @since       2.1.6
918         */
919        @Override
920        public String toString() {
921                StringBuffer buf = new StringBuffer("Imported link: location [");
922                buf.append(llx);
923                buf.append(' ');
924                buf.append(lly);
925                buf.append(' ');
926                buf.append(urx);
927                buf.append(' ');
928                buf.append(ury);
929                buf.append("] destination ");
930                buf.append(destination);
931                buf.append(" parameters ");
932                buf.append(parameters);
933                return buf.toString();
934        }
935    }
936}