diff options
Diffstat (limited to 'src/main/java/com/lowagie/text/pdf/AcroFields.java')
| -rw-r--r-- | src/main/java/com/lowagie/text/pdf/AcroFields.java | 1883 |
1 files changed, 1883 insertions, 0 deletions
diff --git a/src/main/java/com/lowagie/text/pdf/AcroFields.java b/src/main/java/com/lowagie/text/pdf/AcroFields.java new file mode 100644 index 0000000..30e33ca --- /dev/null +++ b/src/main/java/com/lowagie/text/pdf/AcroFields.java @@ -0,0 +1,1883 @@ +/*
+ * Copyright 2003-2005 by Paulo Soares.
+ *
+ * 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.HashMap;
+import java.util.Map;
+import java.util.Iterator;
+import java.util.Comparator;
+import java.util.Collections;
+import com.lowagie.text.Rectangle;
+import com.lowagie.text.Element;
+import com.lowagie.text.ExceptionConverter;
+import com.lowagie.text.DocumentException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.awt.Color;
+
+/** Query and change fields in existing documents either by method
+ * calls or by FDF merging.
+ * @author Paulo Soares (psoares@consiste.pt)
+ */
+public class AcroFields {
+
+ PdfReader reader;
+ PdfWriter writer;
+ HashMap fields;
+ private int topFirst;
+ private HashMap sigNames;
+ private boolean append;
+ static private final int DA_FONT = 0;
+ static private final int DA_SIZE = 1;
+ static private final int DA_COLOR = 2;
+ private HashMap extensionFonts = new HashMap();
+ /**
+ * A field type invalid or not found.
+ */
+ public static final int FIELD_TYPE_NONE = 0;
+ /**
+ * A field type.
+ */
+ public static final int FIELD_TYPE_PUSHBUTTON = 1;
+ /**
+ * A field type.
+ */
+ public static final int FIELD_TYPE_CHECKBOX = 2;
+ /**
+ * A field type.
+ */
+ public static final int FIELD_TYPE_RADIOBUTTON = 3;
+ /**
+ * A field type.
+ */
+ public static final int FIELD_TYPE_TEXT = 4;
+ /**
+ * A field type.
+ */
+ public static final int FIELD_TYPE_LIST = 5;
+ /**
+ * A field type.
+ */
+ public static final int FIELD_TYPE_COMBO = 6;
+ /**
+ * A field type.
+ */
+ public static final int FIELD_TYPE_SIGNATURE = 7;
+
+ private boolean lastWasString;
+
+ /** Holds value of property generateAppearances. */
+ private boolean generateAppearances = true;
+
+ private HashMap localFonts = new HashMap();
+
+ private float extraMarginLeft;
+ private float extraMarginTop;
+ private ArrayList substitutionFonts;
+
+ AcroFields(PdfReader reader, PdfWriter writer) {
+ this.reader = reader;
+ this.writer = writer;
+ if (writer instanceof PdfStamperImp) {
+ append = ((PdfStamperImp)writer).isAppend();
+ }
+ fill();
+ }
+
+ void fill() {
+ fields = new HashMap();
+ PdfDictionary top = (PdfDictionary)PdfReader.getPdfObjectRelease(reader.getCatalog().get(PdfName.ACROFORM));
+ if (top == null)
+ return;
+ PdfArray arrfds = (PdfArray)PdfReader.getPdfObjectRelease(top.get(PdfName.FIELDS));
+ if (arrfds == null || arrfds.size() == 0)
+ return;
+ arrfds = null;
+ for (int k = 1; k <= reader.getNumberOfPages(); ++k) {
+ if ((k % 100) == 0)
+ System.out.println(k);
+ PdfDictionary page = reader.getPageNRelease(k);
+ PdfArray annots = (PdfArray)PdfReader.getPdfObjectRelease(page.get(PdfName.ANNOTS), page);
+ if (annots == null)
+ continue;
+ ArrayList arr = annots.getArrayList();
+ for (int j = 0; j < arr.size(); ++j) {
+ PdfObject annoto = PdfReader.getPdfObject((PdfObject)arr.get(j), annots);
+ if ((annoto instanceof PdfIndirectReference) && !annoto.isIndirect()) {
+ PdfReader.releaseLastXrefPartial((PdfObject)arr.get(j));
+ continue;
+ }
+ PdfDictionary annot = (PdfDictionary)annoto;
+ if (!PdfName.WIDGET.equals(annot.get(PdfName.SUBTYPE))) {
+ PdfReader.releaseLastXrefPartial((PdfObject)arr.get(j));
+ continue;
+ }
+ PdfDictionary widget = annot;
+ PdfDictionary dic = new PdfDictionary();
+ dic.putAll(annot);
+ String name = "";
+ PdfDictionary value = null;
+ PdfObject lastV = null;
+ while (annot != null) {
+ dic.mergeDifferent(annot);
+ PdfString t = (PdfString)PdfReader.getPdfObject(annot.get(PdfName.T));
+ if (t != null)
+ name = t.toUnicodeString() + "." + name;
+ if (lastV == null && annot.get(PdfName.V) != null)
+ lastV = PdfReader.getPdfObjectRelease(annot.get(PdfName.V));
+ if (value == null && t != null) {
+ value = annot;
+ if (annot.get(PdfName.V) == null && lastV != null)
+ value.put(PdfName.V, lastV);
+ }
+ annot = (PdfDictionary)PdfReader.getPdfObject(annot.get(PdfName.PARENT), annot);
+ }
+ if (name.length() > 0)
+ name = name.substring(0, name.length() - 1);
+ Item item = (Item)fields.get(name);
+ if (item == null) {
+ item = new Item();
+ fields.put(name, item);
+ }
+ if (value == null)
+ item.values.add(widget);
+ else
+ item.values.add(value);
+ item.widgets.add(widget);
+ item.widget_refs.add(arr.get(j)); // must be a reference
+ if (top != null)
+ dic.mergeDifferent(top);
+ item.merged.add(dic);
+ item.page.add(new Integer(k));
+ item.tabOrder.add(new Integer(j));
+ }
+ }
+ }
+
+ /** Gets the list of appearance names. Use it to get the names allowed
+ * with radio and checkbox fields. If the /Opt key exists the values will
+ * also be included. The name 'Off' may also be valid
+ * even if not returned in the list.
+ * @param fieldName the fully qualified field name
+ * @return the list of names or <CODE>null</CODE> if the field does not exist
+ */
+ public String[] getAppearanceStates(String fieldName) {
+ Item fd = (Item)fields.get(fieldName);
+ if (fd == null)
+ return null;
+ HashMap names = new HashMap();
+ PdfDictionary vals = (PdfDictionary)fd.values.get(0);
+ PdfObject opts = PdfReader.getPdfObject(vals.get(PdfName.OPT));
+ if (opts != null) {
+ if (opts.isString())
+ names.put(((PdfString)opts).toUnicodeString(), null);
+ else if (opts.isArray()) {
+ ArrayList list = ((PdfArray)opts).getArrayList();
+ for (int k = 0; k < list.size(); ++k) {
+ PdfObject v = PdfReader.getPdfObject((PdfObject)list.get(k));
+ if (v != null && v.isString())
+ names.put(((PdfString)v).toUnicodeString(), null);
+ }
+ }
+ }
+ ArrayList wd = fd.widgets;
+ for (int k = 0; k < wd.size(); ++k) {
+ PdfDictionary dic = (PdfDictionary)wd.get(k);
+ dic = (PdfDictionary)PdfReader.getPdfObject(dic.get(PdfName.AP));
+ if (dic == null)
+ continue;
+ PdfObject ob = PdfReader.getPdfObject(dic.get(PdfName.N));
+ if (ob == null || !ob.isDictionary())
+ continue;
+ dic = (PdfDictionary)ob;
+ for (Iterator it = dic.getKeys().iterator(); it.hasNext();) {
+ String name = PdfName.decodeName(((PdfName)it.next()).toString());
+ names.put(name, null);
+ }
+ }
+ String out[] = new String[names.size()];
+ return (String[])names.keySet().toArray(out);
+ }
+
+ private String[] getListOption(String fieldName, int idx) {
+ Item fd = (Item)fields.get(fieldName);
+ if (fd == null)
+ return null;
+ PdfObject obj = PdfReader.getPdfObject(((PdfDictionary)fd.merged.get(0)).get(PdfName.OPT));
+ if (obj == null || !obj.isArray())
+ return null;
+ PdfArray ar = (PdfArray)obj;
+ String[] ret = new String[ar.size()];
+ ArrayList a = ar.getArrayList();
+ for (int k = 0; k < a.size(); ++k) {
+ obj = PdfReader.getPdfObject((PdfObject)a.get(k));
+ try {
+ if (obj.isArray()) {
+ obj = (PdfObject)((PdfArray)obj).getArrayList().get(idx);
+ }
+ if (obj.isString())
+ ret[k] = ((PdfString)obj).toUnicodeString();
+ else
+ ret[k] = obj.toString();
+ }
+ catch (Exception e) {
+ ret[k] = "";
+ }
+ }
+ return ret;
+ }
+
+ /**
+ * Gets the list of export option values from fields of type list or combo.
+ * If the field doesn't exist or the field type is not list or combo it will return
+ * <CODE>null</CODE>.
+ * @param fieldName the field name
+ * @return the list of export option values from fields of type list or combo
+ */
+ public String[] getListOptionExport(String fieldName) {
+ return getListOption(fieldName, 0);
+ }
+
+ /**
+ * Gets the list of display option values from fields of type list or combo.
+ * If the field doesn't exist or the field type is not list or combo it will return
+ * <CODE>null</CODE>.
+ * @param fieldName the field name
+ * @return the list of export option values from fields of type list or combo
+ */
+ public String[] getListOptionDisplay(String fieldName) {
+ return getListOption(fieldName, 1);
+ }
+
+ /**
+ * Sets the option list for fields of type list or combo. One of <CODE>exportValues</CODE>
+ * or <CODE>displayValues</CODE> may be <CODE>null</CODE> but not both. This method will only
+ * set the list but will not set the value or appearance. For that, calling <CODE>setField()</CODE>
+ * is required.
+ * <p>
+ * An example:
+ * <p>
+ * <PRE>
+ * PdfReader pdf = new PdfReader("input.pdf");
+ * PdfStamper stp = new PdfStamper(pdf, new FileOutputStream("output.pdf"));
+ * AcroFields af = stp.getAcroFields();
+ * af.setListOption("ComboBox", new String[]{"a", "b", "c"}, new String[]{"first", "second", "third"});
+ * af.setField("ComboBox", "b");
+ * stp.close();
+ * </PRE>
+ * @param fieldName the field name
+ * @param exportValues the export values
+ * @param displayValues the display values
+ * @return <CODE>true</CODE> if the operation succeeded, <CODE>false</CODE> otherwise
+ */
+ public boolean setListOption(String fieldName, String[] exportValues, String[] displayValues) {
+ if (exportValues == null && displayValues == null)
+ return false;
+ if (exportValues != null && displayValues != null && exportValues.length != displayValues.length)
+ throw new IllegalArgumentException("The export and the display array must have the same size.");
+ int ftype = getFieldType(fieldName);
+ if (ftype != FIELD_TYPE_COMBO && ftype != FIELD_TYPE_LIST)
+ return false;
+ Item fd = (Item)fields.get(fieldName);
+ String[] sing = null;
+ if (exportValues == null && displayValues != null)
+ sing = displayValues;
+ else if (exportValues != null && displayValues == null)
+ sing = exportValues;
+ PdfArray opt = new PdfArray();
+ if (sing != null) {
+ for (int k = 0; k < sing.length; ++k)
+ opt.add(new PdfString(sing[k], PdfObject.TEXT_UNICODE));
+ }
+ else {
+ for (int k = 0; k < exportValues.length; ++k) {
+ PdfArray a = new PdfArray();
+ a.add(new PdfString(exportValues[k], PdfObject.TEXT_UNICODE));
+ a.add(new PdfString(displayValues[k], PdfObject.TEXT_UNICODE));
+ opt.add(a);
+ }
+ }
+ ((PdfDictionary)fd.values.get(0)).put(PdfName.OPT, opt);
+ for (int j = 0; j < fd.merged.size(); ++j)
+ ((PdfDictionary)fd.merged.get(j)).put(PdfName.OPT, opt);
+ return true;
+ }
+
+ /**
+ * Gets the field type. The type can be one of: <CODE>FIELD_TYPE_PUSHBUTTON</CODE>,
+ * <CODE>FIELD_TYPE_CHECKBOX</CODE>, <CODE>FIELD_TYPE_RADIOBUTTON</CODE>,
+ * <CODE>FIELD_TYPE_TEXT</CODE>, <CODE>FIELD_TYPE_LIST</CODE>,
+ * <CODE>FIELD_TYPE_COMBO</CODE> or <CODE>FIELD_TYPE_SIGNATURE</CODE>.
+ * <p>
+ * If the field does not exist or is invalid it returns
+ * <CODE>FIELD_TYPE_NONE</CODE>.
+ * @param fieldName the field name
+ * @return the field type
+ */
+ public int getFieldType(String fieldName) {
+ Item fd = (Item)fields.get(fieldName);
+ if (fd == null)
+ return FIELD_TYPE_NONE;
+ PdfObject type = PdfReader.getPdfObject(((PdfDictionary)fd.merged.get(0)).get(PdfName.FT));
+ if (type == null)
+ return FIELD_TYPE_NONE;
+ int ff = 0;
+ PdfObject ffo = PdfReader.getPdfObject(((PdfDictionary)fd.merged.get(0)).get(PdfName.FF));
+ if (ffo != null && ffo.type() == PdfObject.NUMBER)
+ ff = ((PdfNumber)ffo).intValue();
+ if (PdfName.BTN.equals(type)) {
+ if ((ff & PdfFormField.FF_PUSHBUTTON) != 0)
+ return FIELD_TYPE_PUSHBUTTON;
+ if ((ff & PdfFormField.FF_RADIO) != 0)
+ return FIELD_TYPE_RADIOBUTTON;
+ else
+ return FIELD_TYPE_CHECKBOX;
+ }
+ else if (PdfName.TX.equals(type)) {
+ return FIELD_TYPE_TEXT;
+ }
+ else if (PdfName.CH.equals(type)) {
+ if ((ff & PdfFormField.FF_COMBO) != 0)
+ return FIELD_TYPE_COMBO;
+ else
+ return FIELD_TYPE_LIST;
+ }
+ else if (PdfName.SIG.equals(type)) {
+ return FIELD_TYPE_SIGNATURE;
+ }
+ return FIELD_TYPE_NONE;
+ }
+
+ /**
+ * Export the fields as a FDF.
+ * @param writer the FDF writer
+ */
+ public void exportAsFdf(FdfWriter writer) {
+ for (Iterator it = fields.entrySet().iterator(); it.hasNext();) {
+ Map.Entry entry = (Map.Entry)it.next();
+ Item item = (Item)entry.getValue();
+ String name = (String)entry.getKey();
+ PdfObject v = PdfReader.getPdfObject(((PdfDictionary)item.merged.get(0)).get(PdfName.V));
+ if (v == null)
+ continue;
+ String value = getField(name);
+ if (lastWasString)
+ writer.setFieldAsString(name, value);
+ else
+ writer.setFieldAsName(name, value);
+ }
+ }
+
+ /**
+ * Renames a field. Only the last part of the name can be renamed. For example,
+ * if the original field is "ab.cd.ef" only the "ef" part can be renamed.
+ * @param oldName the old field name
+ * @param newName the new field name
+ * @return <CODE>true</CODE> if the renaming was successful, <CODE>false</CODE>
+ * otherwise
+ */
+ public boolean renameField(String oldName, String newName) {
+ int idx1 = oldName.lastIndexOf('.') + 1;
+ int idx2 = newName.lastIndexOf('.') + 1;
+ if (idx1 != idx2)
+ return false;
+ if (!oldName.substring(0, idx1).equals(newName.substring(0, idx2)))
+ return false;
+ if (fields.containsKey(newName))
+ return false;
+ Item item = (Item)fields.get(oldName);
+ if (item == null)
+ return false;
+ newName = newName.substring(idx2);
+ PdfString ss = new PdfString(newName, PdfObject.TEXT_UNICODE);
+ for (int k = 0; k < item.merged.size(); ++k) {
+ PdfDictionary dic = (PdfDictionary)item.values.get(k);
+ dic.put(PdfName.T, ss);
+ markUsed(dic);
+ dic = (PdfDictionary)item.merged.get(k);
+ dic.put(PdfName.T, ss);
+ }
+ fields.remove(oldName);
+ fields.put(newName, item);
+ return true;
+ }
+
+ static private Object[] splitDAelements(String da) {
+ try {
+ PRTokeniser tk = new PRTokeniser(PdfEncodings.convertToBytes(da, null));
+ ArrayList stack = new ArrayList();
+ Object ret[] = new Object[3];
+ while (tk.nextToken()) {
+ if (tk.getTokenType() == PRTokeniser.TK_COMMENT)
+ continue;
+ if (tk.getTokenType() == PRTokeniser.TK_OTHER) {
+ String operator = tk.getStringValue();
+ if (operator.equals("Tf")) {
+ if (stack.size() >= 2) {
+ ret[DA_FONT] = stack.get(stack.size() - 2);
+ ret[DA_SIZE] = new Float((String)stack.get(stack.size() - 1));
+ }
+ }
+ else if (operator.equals("g")) {
+ if (stack.size() >= 1) {
+ float gray = new Float((String)stack.get(stack.size() - 1)).floatValue();
+ if (gray != 0)
+ ret[DA_COLOR] = new GrayColor(gray);
+ }
+ }
+ else if (operator.equals("rg")) {
+ if (stack.size() >= 3) {
+ float red = new Float((String)stack.get(stack.size() - 3)).floatValue();
+ float green = new Float((String)stack.get(stack.size() - 2)).floatValue();
+ float blue = new Float((String)stack.get(stack.size() - 1)).floatValue();
+ ret[DA_COLOR] = new Color(red, green, blue);
+ }
+ }
+ else if (operator.equals("k")) {
+ if (stack.size() >= 4) {
+ float cyan = new Float((String)stack.get(stack.size() - 4)).floatValue();
+ float magenta = new Float((String)stack.get(stack.size() - 3)).floatValue();
+ float yellow = new Float((String)stack.get(stack.size() - 2)).floatValue();
+ float black = new Float((String)stack.get(stack.size() - 1)).floatValue();
+ ret[DA_COLOR] = new CMYKColor(cyan, magenta, yellow, black);
+ }
+ }
+ stack.clear();
+ }
+ else
+ stack.add(tk.getStringValue());
+ }
+ return ret;
+ }
+ catch (IOException ioe) {
+ throw new ExceptionConverter(ioe);
+ }
+ }
+
+ PdfAppearance getAppearance(PdfDictionary merged, String text, String fieldName) throws IOException, DocumentException {
+ topFirst = 0;
+ int flags = 0;
+ TextField tx = null;
+ if (fieldCache == null || !fieldCache.containsKey(fieldName)) {
+ tx = new TextField(writer, null, null);
+ tx.setExtraMargin(extraMarginLeft, extraMarginTop);
+ tx.setBorderWidth(0);
+ tx.setSubstitutionFonts(substitutionFonts);
+ // the text size and color
+ PdfString da = (PdfString)PdfReader.getPdfObject(merged.get(PdfName.DA));
+ if (da != null) {
+ Object dab[] = splitDAelements(da.toUnicodeString());
+ if (dab[DA_SIZE] != null)
+ tx.setFontSize(((Float)dab[DA_SIZE]).floatValue());
+ if (dab[DA_COLOR] != null)
+ tx.setTextColor((Color)dab[DA_COLOR]);
+ if (dab[DA_FONT] != null) {
+ PdfDictionary font = (PdfDictionary)PdfReader.getPdfObject(merged.get(PdfName.DR));
+ if (font != null) {
+ font = (PdfDictionary)PdfReader.getPdfObject(font.get(PdfName.FONT));
+ if (font != null) {
+ PdfObject po = font.get(new PdfName((String)dab[DA_FONT]));
+ if (po != null && po.type() == PdfObject.INDIRECT) {
+ PRIndirectReference por = (PRIndirectReference)po;
+ BaseFont bp = new DocumentFont((PRIndirectReference)po);
+ tx.setFont(bp);
+ Integer porkey = new Integer(por.getNumber());
+ BaseFont porf = (BaseFont)extensionFonts.get(porkey);
+ if (porf == null) {
+ if (!extensionFonts.containsKey(porkey)) {
+ PdfDictionary fo = (PdfDictionary)PdfReader.getPdfObject(po);
+ PdfDictionary fd = (PdfDictionary)PdfReader.getPdfObject(fo.get(PdfName.FONTDESCRIPTOR));
+ if (fd != null) {
+ PRStream prs = (PRStream)PdfReader.getPdfObject(fd.get(PdfName.FONTFILE2));
+ if (prs == null)
+ prs = (PRStream)PdfReader.getPdfObject(fd.get(PdfName.FONTFILE3));
+ if (prs == null) {
+ extensionFonts.put(porkey, null);
+ }
+ else {
+ try {
+ porf = BaseFont.createFont("font.ttf", BaseFont.IDENTITY_H, true, false, PdfReader.getStreamBytes(prs), null);
+ }
+ catch (Exception e) {
+ porf = null;
+ }
+ extensionFonts.put(porkey, porf);
+ }
+ }
+ }
+ }
+ tx.setExtensionFont(porf);
+ }
+ else {
+ BaseFont bf = (BaseFont)localFonts.get(dab[DA_FONT]);
+ if (bf == null) {
+ String fn[] = (String[])stdFieldFontNames.get(dab[DA_FONT]);
+ if (fn != null) {
+ try {
+ String enc = "winansi";
+ if (fn.length > 1)
+ enc = fn[1];
+ bf = BaseFont.createFont(fn[0], enc, false);
+ tx.setFont(bf);
+ }
+ catch (Exception e) {
+ // empty
+ }
+ }
+ }
+ else
+ tx.setFont(bf);
+ }
+ }
+ }
+ }
+ }
+ //rotation, border and backgound color
+ PdfDictionary mk = (PdfDictionary)PdfReader.getPdfObject(merged.get(PdfName.MK));
+ if (mk != null) {
+ PdfArray ar = (PdfArray)PdfReader.getPdfObject(mk.get(PdfName.BC));
+ Color border = getMKColor(ar);
+ tx.setBorderColor(border);
+ if (border != null)
+ tx.setBorderWidth(1);
+ ar = (PdfArray)PdfReader.getPdfObject(mk.get(PdfName.BG));
+ tx.setBackgroundColor(getMKColor(ar));
+ PdfNumber rotation = (PdfNumber)PdfReader.getPdfObject(mk.get(PdfName.R));
+ if (rotation != null)
+ tx.setRotation(rotation.intValue());
+ }
+ //multiline
+ PdfNumber nfl = (PdfNumber)PdfReader.getPdfObject(merged.get(PdfName.FF));
+ if (nfl != null)
+ flags = nfl.intValue();
+ tx.setOptions(((flags & PdfFormField.FF_MULTILINE) == 0 ? 0 : TextField.MULTILINE) | ((flags & PdfFormField.FF_COMB) == 0 ? 0 : TextField.COMB));
+ if ((flags & PdfFormField.FF_COMB) != 0) {
+ PdfNumber maxLen = (PdfNumber)PdfReader.getPdfObject(merged.get(PdfName.MAXLEN));
+ int len = 0;
+ if (maxLen != null)
+ len = maxLen.intValue();
+ tx.setMaxCharacterLength(len);
+ }
+ //alignment
+ nfl = (PdfNumber)PdfReader.getPdfObject(merged.get(PdfName.Q));
+ if (nfl != null) {
+ if (nfl.intValue() == PdfFormField.Q_CENTER)
+ tx.setAlignment(Element.ALIGN_CENTER);
+ else if (nfl.intValue() == PdfFormField.Q_RIGHT)
+ tx.setAlignment(Element.ALIGN_RIGHT);
+ }
+ //border styles
+ PdfDictionary bs = (PdfDictionary)PdfReader.getPdfObject(merged.get(PdfName.BS));
+ if (bs != null) {
+ PdfNumber w = (PdfNumber)PdfReader.getPdfObject(bs.get(PdfName.W));
+ if (w != null)
+ tx.setBorderWidth(w.floatValue());
+ PdfName s = (PdfName)PdfReader.getPdfObject(bs.get(PdfName.S));
+ if (PdfName.D.equals(s))
+ tx.setBorderStyle(PdfBorderDictionary.STYLE_DASHED);
+ else if (PdfName.B.equals(s))
+ tx.setBorderStyle(PdfBorderDictionary.STYLE_BEVELED);
+ else if (PdfName.I.equals(s))
+ tx.setBorderStyle(PdfBorderDictionary.STYLE_INSET);
+ else if (PdfName.U.equals(s))
+ tx.setBorderStyle(PdfBorderDictionary.STYLE_UNDERLINE);
+ }
+ else {
+ PdfArray bd = (PdfArray)PdfReader.getPdfObject(merged.get(PdfName.BORDER));
+ if (bd != null) {
+ ArrayList ar = bd.getArrayList();
+ if (ar.size() >= 3)
+ tx.setBorderWidth(((PdfNumber)ar.get(2)).floatValue());
+ if (ar.size() >= 4)
+ tx.setBorderStyle(PdfBorderDictionary.STYLE_DASHED);
+ }
+ }
+ //rect
+ PdfArray rect = (PdfArray)PdfReader.getPdfObject(merged.get(PdfName.RECT));
+ Rectangle box = PdfReader.getNormalizedRectangle(rect);
+ if (tx.getRotation() == 90 || tx.getRotation() == 270)
+ box = box.rotate();
+ tx.setBox(box);
+ if (fieldCache != null)
+ fieldCache.put(fieldName, tx);
+ }
+ else {
+ tx = (TextField)fieldCache.get(fieldName);
+ tx.setWriter(writer);
+ }
+ PdfName fieldType = (PdfName)PdfReader.getPdfObject(merged.get(PdfName.FT));
+ if (PdfName.TX.equals(fieldType)) {
+ tx.setText(text);
+ return tx.getAppearance();
+ }
+ if (!PdfName.CH.equals(fieldType))
+ throw new DocumentException("An appearance was requested without a variable text field.");
+ PdfArray opt = (PdfArray)PdfReader.getPdfObject(merged.get(PdfName.OPT));
+ if ((flags & PdfFormField.FF_COMBO) != 0 && opt == null) {
+ tx.setText(text);
+ return tx.getAppearance();
+ }
+ if (opt != null) {
+ ArrayList op = opt.getArrayList();
+ String choices[] = new String[op.size()];
+ String choicesExp[] = new String[op.size()];
+ for (int k = 0; k < op.size(); ++k) {
+ PdfObject obj = (PdfObject)op.get(k);
+ if (obj.isString()) {
+ choices[k] = choicesExp[k] = ((PdfString)obj).toUnicodeString();
+ }
+ else {
+ ArrayList opar = ((PdfArray)obj).getArrayList();
+ choicesExp[k] = ((PdfString)opar.get(0)).toUnicodeString();
+ choices[k] = ((PdfString)opar.get(1)).toUnicodeString();
+ }
+ }
+ if ((flags & PdfFormField.FF_COMBO) != 0) {
+ for (int k = 0; k < choices.length; ++k) {
+ if (text.equals(choicesExp[k])) {
+ text = choices[k];
+ break;
+ }
+ }
+ tx.setText(text);
+ return tx.getAppearance();
+ }
+ int idx = 0;
+ for (int k = 0; k < choicesExp.length; ++k) {
+ if (text.equals(choicesExp[k])) {
+ idx = k;
+ break;
+ }
+ }
+ tx.setChoices(choices);
+ tx.setChoiceExports(choicesExp);
+ tx.setChoiceSelection(idx);
+ }
+ PdfAppearance app = tx.getListAppearance();
+ topFirst = tx.getTopFirst();
+ return app;
+ }
+
+ Color getMKColor(PdfArray ar) {
+ if (ar == null)
+ return null;
+ ArrayList cc = ar.getArrayList();
+ switch (cc.size()) {
+ case 1:
+ return new GrayColor(((PdfNumber)cc.get(0)).floatValue());
+ case 3:
+ return new Color(((PdfNumber)cc.get(0)).floatValue(), ((PdfNumber)cc.get(1)).floatValue(), ((PdfNumber)cc.get(2)).floatValue());
+ case 4:
+ return new CMYKColor(((PdfNumber)cc.get(0)).floatValue(), ((PdfNumber)cc.get(1)).floatValue(), ((PdfNumber)cc.get(2)).floatValue(), ((PdfNumber)cc.get(3)).floatValue());
+ default:
+ return null;
+ }
+ }
+
+ /** Gets the field value.
+ * @param name the fully qualified field name
+ * @return the field value
+ */
+ public String getField(String name) {
+ Item item = (Item)fields.get(name);
+ if (item == null)
+ return null;
+ lastWasString = false;
+ PdfObject v = PdfReader.getPdfObject(((PdfDictionary)item.merged.get(0)).get(PdfName.V));
+ if (v == null)
+ return "";
+ PdfName type = (PdfName)PdfReader.getPdfObject(((PdfDictionary)item.merged.get(0)).get(PdfName.FT));
+ if (PdfName.BTN.equals(type)) {
+ PdfNumber ff = (PdfNumber)PdfReader.getPdfObject(((PdfDictionary)item.merged.get(0)).get(PdfName.FF));
+ int flags = 0;
+ if (ff != null)
+ flags = ff.intValue();
+ if ((flags & PdfFormField.FF_PUSHBUTTON) != 0)
+ return "";
+ String value = "";
+ if (v.isName())
+ value = PdfName.decodeName(v.toString());
+ else if (v.isString())
+ value = ((PdfString)v).toUnicodeString();
+ PdfObject opts = PdfReader.getPdfObject(((PdfDictionary)item.values.get(0)).get(PdfName.OPT));
+ if (opts != null && opts.isArray()) {
+ ArrayList list = ((PdfArray)opts).getArrayList();
+ int idx = 0;
+ try {
+ idx = Integer.parseInt(value);
+ PdfString ps = (PdfString)list.get(idx);
+ value = ps.toUnicodeString();
+ lastWasString = true;
+ }
+ catch (Exception e) {
+ }
+ }
+ return value;
+ }
+ if (v.isString()) {
+ lastWasString = true;
+ return ((PdfString)v).toUnicodeString();
+ }
+ return PdfName.decodeName(v.toString());
+ }
+
+ /**
+ * Sets a field property. Valid property names are:
+ * <p>
+ * <ul>
+ * <li>textfont - sets the text font. The value for this entry is a <CODE>BaseFont</CODE>.<br>
+ * <li>textcolor - sets the text color. The value for this entry is a <CODE>java.awt.Color</CODE>.<br>
+ * <li>textsize - sets the text size. The value for this entry is a <CODE>Float</CODE>.
+ * <li>bgcolor - sets the background color. The value for this entry is a <CODE>java.awt.Color</CODE>.
+ * If <code>null</code> removes the background.<br>
+ * <li>bordercolor - sets the border color. The value for this entry is a <CODE>java.awt.Color</CODE>.
+ * If <code>null</code> removes the border.<br>
+ * </ul>
+ * @param field the field name
+ * @param name the property name
+ * @param value the property value
+ * @param inst an array of <CODE>int</CODE> indexing into <CODE>AcroField.Item.merged</CODE> elements to process.
+ * Set to <CODE>null</CODE> to process all
+ * @return <CODE>true</CODE> if the property exists, <CODE>false</CODE> otherwise
+ */
+ public boolean setFieldProperty(String field, String name, Object value, int inst[]) {
+ if (writer == null)
+ throw new RuntimeException("This AcroFields instance is read-only.");
+ try {
+ Item item = (Item)fields.get(field);
+ if (item == null)
+ return false;
+ InstHit hit = new InstHit(inst);
+ if (name.equalsIgnoreCase("textfont")) {
+ for (int k = 0; k < item.merged.size(); ++k) {
+ if (hit.isHit(k)) {
+ PdfString da = (PdfString)PdfReader.getPdfObject(((PdfDictionary)item.merged.get(k)).get(PdfName.DA));
+ PdfDictionary dr = (PdfDictionary)PdfReader.getPdfObject(((PdfDictionary)item.merged.get(k)).get(PdfName.DR));
+ if (da != null && dr != null) {
+ Object dao[] = splitDAelements(da.toUnicodeString());
+ PdfAppearance cb = new PdfAppearance();
+ if (dao[DA_FONT] != null) {
+ BaseFont bf = (BaseFont)value;
+ PdfName psn = (PdfName)PdfAppearance.stdFieldFontNames.get(bf.getPostscriptFontName());
+ if (psn == null) {
+ psn = new PdfName(bf.getPostscriptFontName());
+ }
+ PdfDictionary fonts = (PdfDictionary)PdfReader.getPdfObject(dr.get(PdfName.FONT));
+ if (fonts == null) {
+ fonts = new PdfDictionary();
+ dr.put(PdfName.FONT, fonts);
+ }
+ PdfIndirectReference fref = (PdfIndirectReference)fonts.get(psn);
+ PdfDictionary top = (PdfDictionary)PdfReader.getPdfObject(reader.getCatalog().get(PdfName.ACROFORM));
+ markUsed(top);
+ dr = (PdfDictionary)PdfReader.getPdfObject(top.get(PdfName.DR));
+ if (dr == null) {
+ dr = new PdfDictionary();
+ top.put(PdfName.DR, dr);
+ }
+ markUsed(dr);
+ PdfDictionary fontsTop = (PdfDictionary)PdfReader.getPdfObject(dr.get(PdfName.FONT));
+ if (fontsTop == null) {
+ fontsTop = new PdfDictionary();
+ dr.put(PdfName.FONT, fontsTop);
+ }
+ markUsed(fontsTop);
+ PdfIndirectReference frefTop = (PdfIndirectReference)fontsTop.get(psn);
+ if (frefTop != null) {
+ if (fref == null)
+ fonts.put(psn, frefTop);
+ }
+ else if (fref == null) {
+ FontDetails fd;
+ if (bf.getFontType() == BaseFont.FONT_TYPE_DOCUMENT) {
+ fd = new FontDetails(null, ((DocumentFont)bf).getIndirectReference(), bf);
+ }
+ else {
+ bf.setSubset(false);
+ fd = writer.addSimple(bf);
+ localFonts.put(psn.toString().substring(1), bf);
+ }
+ fontsTop.put(psn, fd.getIndirectReference());
+ fonts.put(psn, fd.getIndirectReference());
+ }
+ ByteBuffer buf = cb.getInternalBuffer();
+ buf.append(psn.getBytes()).append(' ').append(((Float)dao[DA_SIZE]).floatValue()).append(" Tf ");
+ if (dao[DA_COLOR] != null)
+ cb.setColorFill((Color)dao[DA_COLOR]);
+ PdfString s = new PdfString(cb.toString());
+ ((PdfDictionary)item.merged.get(k)).put(PdfName.DA, s);
+ ((PdfDictionary)item.widgets.get(k)).put(PdfName.DA, s);
+ markUsed((PdfDictionary)item.widgets.get(k));
+ }
+ }
+ }
+ }
+ }
+ else if (name.equalsIgnoreCase("textcolor")) {
+ for (int k = 0; k < item.merged.size(); ++k) {
+ if (hit.isHit(k)) {
+ PdfString da = (PdfString)PdfReader.getPdfObject(((PdfDictionary)item.merged.get(k)).get(PdfName.DA));
+ if (da != null) {
+ Object dao[] = splitDAelements(da.toUnicodeString());
+ PdfAppearance cb = new PdfAppearance();
+ if (dao[DA_FONT] != null) {
+ ByteBuffer buf = cb.getInternalBuffer();
+ buf.append(new PdfName((String)dao[DA_FONT]).getBytes()).append(' ').append(((Float)dao[DA_SIZE]).floatValue()).append(" Tf ");
+ cb.setColorFill((Color)value);
+ PdfString s = new PdfString(cb.toString());
+ ((PdfDictionary)item.merged.get(k)).put(PdfName.DA, s);
+ ((PdfDictionary)item.widgets.get(k)).put(PdfName.DA, s);
+ markUsed((PdfDictionary)item.widgets.get(k));
+ }
+ }
+ }
+ }
+ }
+ else if (name.equalsIgnoreCase("textsize")) {
+ for (int k = 0; k < item.merged.size(); ++k) {
+ if (hit.isHit(k)) {
+ PdfString da = (PdfString)PdfReader.getPdfObject(((PdfDictionary)item.merged.get(k)).get(PdfName.DA));
+ if (da != null) {
+ Object dao[] = splitDAelements(da.toUnicodeString());
+ PdfAppearance cb = new PdfAppearance();
+ if (dao[DA_FONT] != null) {
+ ByteBuffer buf = cb.getInternalBuffer();
+ buf.append(new PdfName((String)dao[DA_FONT]).getBytes()).append(' ').append(((Float)value).floatValue()).append(" Tf ");
+ if (dao[DA_COLOR] != null)
+ cb.setColorFill((Color)dao[DA_COLOR]);
+ PdfString s = new PdfString(cb.toString());
+ ((PdfDictionary)item.merged.get(k)).put(PdfName.DA, s);
+ ((PdfDictionary)item.widgets.get(k)).put(PdfName.DA, s);
+ markUsed((PdfDictionary)item.widgets.get(k));
+ }
+ }
+ }
+ }
+ }
+ else if (name.equalsIgnoreCase("bgcolor") || name.equalsIgnoreCase("bordercolor")) {
+ PdfName dname = (name.equalsIgnoreCase("bgcolor") ? PdfName.BG : PdfName.BC);
+ for (int k = 0; k < item.merged.size(); ++k) {
+ if (hit.isHit(k)) {
+ PdfObject obj = PdfReader.getPdfObject(((PdfDictionary)item.merged.get(k)).get(PdfName.MK));
+ markUsed(obj);
+ PdfDictionary mk = (PdfDictionary)obj;
+ if (mk == null) {
+ if (value == null)
+ return true;
+ mk = new PdfDictionary();
+ ((PdfDictionary)item.merged.get(k)).put(PdfName.MK, mk);
+ ((PdfDictionary)item.widgets.get(k)).put(PdfName.MK, mk);
+ markUsed((PdfDictionary)item.widgets.get(k));
+ }
+ if (value == null)
+ mk.remove(dname);
+ else
+ mk.put(dname, PdfFormField.getMKColor((Color)value));
+ }
+ }
+ }
+ else
+ return false;
+ return true;
+ }
+ catch (Exception e) {
+ throw new ExceptionConverter(e);
+ }
+ }
+
+ /**
+ * Sets a field property. Valid property names are:
+ * <p>
+ * <ul>
+ * <li>flags - a set of flags specifying various characteristics of the field’s widget annotation.
+ * The value of this entry replaces that of the F entry in the form’s corresponding annotation dictionary.<br>
+ * <li>setflags - a set of flags to be set (turned on) in the F entry of the form’s corresponding
+ * widget annotation dictionary. Bits equal to 1 cause the corresponding bits in F to be set to 1.<br>
+ * <li>clrflags - a set of flags to be cleared (turned off) in the F entry of the form’s corresponding
+ * widget annotation dictionary. Bits equal to 1 cause the corresponding
+ * bits in F to be set to 0.<br>
+ * <li>fflags - a set of flags specifying various characteristics of the field. The value
+ * of this entry replaces that of the Ff entry in the form’s corresponding field dictionary.<br>
+ * <li>setfflags - a set of flags to be set (turned on) in the Ff entry of the form’s corresponding
+ * field dictionary. Bits equal to 1 cause the corresponding bits in Ff to be set to 1.<br>
+ * <li>clrfflags - a set of flags to be cleared (turned off) in the Ff entry of the form’s corresponding
+ * field dictionary. Bits equal to 1 cause the corresponding bits in Ff
+ * to be set to 0.<br>
+ * </ul>
+ * @param field the field name
+ * @param name the property name
+ * @param value the property value
+ * @param inst an array of <CODE>int</CODE> indexing into <CODE>AcroField.Item.merged</CODE> elements to process.
+ * Set to <CODE>null</CODE> to process all
+ * @return <CODE>true</CODE> if the property exists, <CODE>false</CODE> otherwise
+ */
+ public boolean setFieldProperty(String field, String name, int value, int inst[]) {
+ if (writer == null)
+ throw new RuntimeException("This AcroFields instance is read-only.");
+ Item item = (Item)fields.get(field);
+ if (item == null)
+ return false;
+ InstHit hit = new InstHit(inst);
+ if (name.equalsIgnoreCase("flags")) {
+ PdfNumber num = new PdfNumber(value);
+ for (int k = 0; k < item.merged.size(); ++k) {
+ if (hit.isHit(k)) {
+ ((PdfDictionary)item.merged.get(k)).put(PdfName.F, num);
+ ((PdfDictionary)item.widgets.get(k)).put(PdfName.F, num);
+ markUsed((PdfDictionary)item.widgets.get(k));
+ }
+ }
+ }
+ else if (name.equalsIgnoreCase("setflags")) {
+ for (int k = 0; k < item.merged.size(); ++k) {
+ if (hit.isHit(k)) {
+ PdfNumber num = (PdfNumber)PdfReader.getPdfObject(((PdfDictionary)item.widgets.get(k)).get(PdfName.F));
+ int val = 0;
+ if (num != null)
+ val = num.intValue();
+ num = new PdfNumber(val | value);
+ ((PdfDictionary)item.merged.get(k)).put(PdfName.F, num);
+ ((PdfDictionary)item.widgets.get(k)).put(PdfName.F, num);
+ markUsed((PdfDictionary)item.widgets.get(k));
+ }
+ }
+ }
+ else if (name.equalsIgnoreCase("clrflags")) {
+ for (int k = 0; k < item.merged.size(); ++k) {
+ if (hit.isHit(k)) {
+ PdfNumber num = (PdfNumber)PdfReader.getPdfObject(((PdfDictionary)item.widgets.get(k)).get(PdfName.F));
+ int val = 0;
+ if (num != null)
+ val = num.intValue();
+ num = new PdfNumber(val & (~value));
+ ((PdfDictionary)item.merged.get(k)).put(PdfName.F, num);
+ ((PdfDictionary)item.widgets.get(k)).put(PdfName.F, num);
+ markUsed((PdfDictionary)item.widgets.get(k));
+ }
+ }
+ }
+ else if (name.equalsIgnoreCase("fflags")) {
+ PdfNumber num = new PdfNumber(value);
+ for (int k = 0; k < item.merged.size(); ++k) {
+ if (hit.isHit(k)) {
+ ((PdfDictionary)item.merged.get(k)).put(PdfName.FF, num);
+ ((PdfDictionary)item.values.get(k)).put(PdfName.FF, num);
+ markUsed((PdfDictionary)item.values.get(k));
+ }
+ }
+ }
+ else if (name.equalsIgnoreCase("setfflags")) {
+ for (int k = 0; k < item.merged.size(); ++k) {
+ if (hit.isHit(k)) {
+ PdfNumber num = (PdfNumber)PdfReader.getPdfObject(((PdfDictionary)item.values.get(k)).get(PdfName.FF));
+ int val = 0;
+ if (num != null)
+ val = num.intValue();
+ num = new PdfNumber(val | value);
+ ((PdfDictionary)item.merged.get(k)).put(PdfName.FF, num);
+ ((PdfDictionary)item.values.get(k)).put(PdfName.FF, num);
+ markUsed((PdfDictionary)item.values.get(k));
+ }
+ }
+ }
+ else if (name.equalsIgnoreCase("clrfflags")) {
+ for (int k = 0; k < item.merged.size(); ++k) {
+ if (hit.isHit(k)) {
+ PdfNumber num = (PdfNumber)PdfReader.getPdfObject(((PdfDictionary)item.values.get(k)).get(PdfName.FF));
+ int val = 0;
+ if (num != null)
+ val = num.intValue();
+ num = new PdfNumber(val & (~value));
+ ((PdfDictionary)item.merged.get(k)).put(PdfName.FF, num);
+ ((PdfDictionary)item.values.get(k)).put(PdfName.FF, num);
+ markUsed((PdfDictionary)item.values.get(k));
+ }
+ }
+ }
+ else
+ return false;
+ return true;
+ }
+
+ /** Sets the fields by FDF merging.
+ * @param fdf the FDF form
+ * @throws IOException on error
+ * @throws DocumentException on error
+ */
+ public void setFields(FdfReader fdf) throws IOException, DocumentException {
+ HashMap fd = fdf.getFields();
+ for (Iterator i = fd.keySet().iterator(); i.hasNext();) {
+ String f = (String)i.next();
+ String v = fdf.getFieldValue(f);
+ if (v != null)
+ setField(f, v);
+ }
+ }
+
+ /** Sets the fields by XFDF merging.
+ * @param xfdf the XFDF form
+ * @throws IOException on error
+ * @throws DocumentException on error
+ */
+
+ public void setFields(XfdfReader xfdf) throws IOException, DocumentException {
+ HashMap fd = xfdf.getFields();
+ for (Iterator i = fd.keySet().iterator(); i.hasNext();) {
+ String f = (String)i.next();
+ String v = xfdf.getFieldValue(f);
+ if (v != null)
+ setField(f, v);
+ }
+ }
+
+ /** Sets the field value.
+ * @param name the fully qualified field name
+ * @param value the field value
+ * @throws IOException on error
+ * @throws DocumentException on error
+ * @return <CODE>true</CODE> if the field was found and changed,
+ * <CODE>false</CODE> otherwise
+ */
+ public boolean setField(String name, String value) throws IOException, DocumentException {
+ return setField(name, value, value);
+ }
+
+ /** Sets the field value and the display string. The display string
+ * is used to build the appearance in the cases where the value
+ * is modified by Acrobat with JavaScript and the algorithm is
+ * known.
+ * @param name the fully qualified field name
+ * @param value the field value
+ * @param display the string that is used for the appearance
+ * @return <CODE>true</CODE> if the field was found and changed,
+ * <CODE>false</CODE> otherwise
+ * @throws IOException on error
+ * @throws DocumentException on error
+ */
+ public boolean setField(String name, String value, String display) throws IOException, DocumentException {
+ if (writer == null)
+ throw new DocumentException("This AcroFields instance is read-only.");
+ Item item = (Item)fields.get(name);
+ if (item == null)
+ return false;
+ PdfName type = (PdfName)PdfReader.getPdfObject(((PdfDictionary)item.merged.get(0)).get(PdfName.FT));
+ if (PdfName.TX.equals(type)) {
+ PdfNumber maxLen = (PdfNumber)PdfReader.getPdfObject(((PdfDictionary)item.merged.get(0)).get(PdfName.MAXLEN));
+ int len = 0;
+ if (maxLen != null)
+ len = maxLen.intValue();
+ if (len > 0)
+ value = value.substring(0, Math.min(len, value.length()));
+ }
+ if (PdfName.TX.equals(type) || PdfName.CH.equals(type)) {
+ PdfString v = new PdfString(value, PdfObject.TEXT_UNICODE);
+ for (int idx = 0; idx < item.values.size(); ++idx) {
+ PdfDictionary valueDic = (PdfDictionary)item.values.get(idx);
+ valueDic.put(PdfName.V, v);
+ valueDic.remove(PdfName.I);
+ markUsed(valueDic);
+ PdfDictionary merged = (PdfDictionary)item.merged.get(idx);
+ merged.remove(PdfName.I);
+ merged.put(PdfName.V, v);
+ PdfDictionary widget = (PdfDictionary)item.widgets.get(idx);
+ if (generateAppearances) {
+ PdfAppearance app = getAppearance(merged, display, name);
+ if (PdfName.CH.equals(type)) {
+ PdfNumber n = new PdfNumber(topFirst);
+ widget.put(PdfName.TI, n);
+ merged.put(PdfName.TI, n);
+ }
+ PdfDictionary appDic = (PdfDictionary)PdfReader.getPdfObject(widget.get(PdfName.AP));
+ if (appDic == null) {
+ appDic = new PdfDictionary();
+ widget.put(PdfName.AP, appDic);
+ merged.put(PdfName.AP, appDic);
+ }
+ appDic.put(PdfName.N, app.getIndirectReference());
+ writer.releaseTemplate(app);
+ }
+ else {
+ widget.remove(PdfName.AP);
+ merged.remove(PdfName.AP);
+ }
+ markUsed(widget);
+ }
+ return true;
+ }
+ else if (PdfName.BTN.equals(type)) {
+ PdfNumber ff = (PdfNumber)PdfReader.getPdfObject(((PdfDictionary)item.merged.get(0)).get(PdfName.FF));
+ int flags = 0;
+ if (ff != null)
+ flags = ff.intValue();
+ if ((flags & PdfFormField.FF_PUSHBUTTON) != 0)
+ return true;
+ PdfName v = new PdfName(value);
+ if ((flags & PdfFormField.FF_RADIO) == 0) {
+ for (int idx = 0; idx < item.values.size(); ++idx) {
+ ((PdfDictionary)item.values.get(idx)).put(PdfName.V, v);
+ markUsed((PdfDictionary)item.values.get(idx));
+ PdfDictionary merged = (PdfDictionary)item.merged.get(idx);
+ merged.put(PdfName.V, v);
+ merged.put(PdfName.AS, v);
+ PdfDictionary widget = (PdfDictionary)item.widgets.get(idx);
+ if (isInAP(widget, v))
+ widget.put(PdfName.AS, v);
+ else
+ widget.put(PdfName.AS, PdfName.Off);
+ markUsed(widget);
+ }
+ }
+ else {
+ ArrayList lopt = new ArrayList();
+ PdfObject opts = PdfReader.getPdfObject(((PdfDictionary)item.values.get(0)).get(PdfName.OPT));
+ if (opts != null && opts.isArray()) {
+ ArrayList list = ((PdfArray)opts).getArrayList();
+ for (int k = 0; k < list.size(); ++k) {
+ PdfObject vv = PdfReader.getPdfObject((PdfObject)list.get(k));
+ if (vv != null && vv.isString())
+ lopt.add(((PdfString)vv).toUnicodeString());
+ else
+ lopt.add(null);
+ }
+ }
+ int vidx = lopt.indexOf(value);
+ PdfName valt = null;
+ PdfName vt;
+ if (vidx >= 0) {
+ vt = valt = new PdfName(String.valueOf(vidx));
+ }
+ else
+ vt = v;
+ for (int idx = 0; idx < item.values.size(); ++idx) {
+ PdfDictionary merged = (PdfDictionary)item.merged.get(idx);
+ PdfDictionary widget = (PdfDictionary)item.widgets.get(idx);
+ markUsed((PdfDictionary)item.values.get(idx));
+ if (valt != null) {
+ PdfString ps = new PdfString(value, PdfObject.TEXT_UNICODE);
+ ((PdfDictionary)item.values.get(idx)).put(PdfName.V, ps);
+ merged.put(PdfName.V, ps);
+ }
+ else {
+ ((PdfDictionary)item.values.get(idx)).put(PdfName.V, v);
+ merged.put(PdfName.V, v);
+ }
+ markUsed(widget);
+ if (isInAP(widget, vt)) {
+ merged.put(PdfName.AS, vt);
+ widget.put(PdfName.AS, vt);
+ }
+ else {
+ merged.put(PdfName.AS, PdfName.Off);
+ widget.put(PdfName.AS, PdfName.Off);
+ }
+ }
+ }
+ return true;
+ }
+ return false;
+ }
+
+ boolean isInAP(PdfDictionary dic, PdfName check) {
+ PdfDictionary appDic = (PdfDictionary)PdfReader.getPdfObject(dic.get(PdfName.AP));
+ if (appDic == null)
+ return false;
+ PdfDictionary NDic = (PdfDictionary)PdfReader.getPdfObject(appDic.get(PdfName.N));
+ return (NDic != null && NDic.get(check) != null);
+ }
+
+ /** Gets all the fields. The fields are keyed by the fully qualified field name and
+ * the value is an instance of <CODE>AcroFields.Item</CODE>.
+ * @return all the fields
+ */
+ public HashMap getFields() {
+ return fields;
+ }
+
+ /**
+ * Gets the field structure.
+ * @param name the name of the field
+ * @return the field structure or <CODE>null</CODE> if the field
+ * does not exist
+ */
+ public Item getFieldItem(String name) {
+ return (Item)fields.get(name);
+ }
+
+ /**
+ * Gets the field box positions in the document. The return is an array of <CODE>float</CODE>
+ * multiple of 5. For each of this groups the values are: [page, llx, lly, urx,
+ * ury].
+ * @param name the field name
+ * @return the positions or <CODE>null</CODE> if field does not exist
+ */
+ public float[] getFieldPositions(String name) {
+ Item item = (Item)fields.get(name);
+ if (item == null)
+ return null;
+ float ret[] = new float[item.page.size() * 5];
+ int ptr = 0;
+ for (int k = 0; k < item.page.size(); ++k) {
+ try {
+ PdfDictionary wd = (PdfDictionary)item.widgets.get(k);
+ PdfArray rect = (PdfArray)wd.get(PdfName.RECT);
+ if (rect == null)
+ continue;
+ Rectangle r = PdfReader.getNormalizedRectangle(rect);
+ ret[ptr] = ((Integer)item.page.get(k)).floatValue();
+ ++ptr;
+ ret[ptr++] = r.left();
+ ret[ptr++] = r.bottom();
+ ret[ptr++] = r.right();
+ ret[ptr++] = r.top();
+ }
+ catch (Exception e) {
+ // empty on purpose
+ }
+ }
+ if (ptr < ret.length) {
+ float ret2[] = new float[ptr];
+ System.arraycopy(ret, 0, ret2, 0, ptr);
+ return ret2;
+ }
+ return ret;
+ }
+
+ private int removeRefFromArray(PdfArray array, PdfObject refo) {
+ ArrayList ar = array.getArrayList();
+ if (refo == null || !refo.isIndirect())
+ return ar.size();
+ PdfIndirectReference ref = (PdfIndirectReference)refo;
+ for (int j = 0; j < ar.size(); ++j) {
+ PdfObject obj = (PdfObject)ar.get(j);
+ if (!obj.isIndirect())
+ continue;
+ if (((PdfIndirectReference)obj).getNumber() == ref.getNumber())
+ ar.remove(j--);
+ }
+ return ar.size();
+ }
+
+ /**
+ * Removes all the fields from <CODE>page</CODE>.
+ * @param page the page to remove the fields from
+ * @return <CODE>true</CODE> if any field was removed, <CODE>false otherwise</CODE>
+ */
+ public boolean removeFieldsFromPage(int page) {
+ if (page < 1)
+ return false;
+ String names[] = new String[fields.size()];
+ fields.keySet().toArray(names);
+ boolean found = false;
+ for (int k = 0; k < names.length; ++k) {
+ boolean fr = removeField(names[k], page);
+ found = (found || fr);
+ }
+ return found;
+ }
+
+ /**
+ * Removes a field from the document. If page equals -1 all the fields with this
+ * <CODE>name</CODE> are removed from the document otherwise only the fields in
+ * that particular page are removed.
+ * @param name the field name
+ * @param page the page to remove the field from or -1 to remove it from all the pages
+ * @return <CODE>true</CODE> if the field exists, <CODE>false otherwise</CODE>
+ */
+ public boolean removeField(String name, int page) {
+ Item item = (Item)fields.get(name);
+ if (item == null)
+ return false;
+ PdfDictionary acroForm = (PdfDictionary)PdfReader.getPdfObject(reader.getCatalog().get(PdfName.ACROFORM), reader.getCatalog());
+
+ if (acroForm == null)
+ return false;
+ PdfArray arrayf = (PdfArray)PdfReader.getPdfObject(acroForm.get(PdfName.FIELDS), acroForm);
+ if (arrayf == null)
+ return false;
+ for (int k = 0; k < item.widget_refs.size(); ++k) {
+ int pageV = ((Integer)item.page.get(k)).intValue();
+ if (page != -1 && page != pageV)
+ continue;
+ PdfIndirectReference ref = (PdfIndirectReference)item.widget_refs.get(k);
+ PdfDictionary wd = (PdfDictionary)PdfReader.getPdfObject(ref);
+ PdfDictionary pageDic = reader.getPageN(pageV);
+ PdfArray annots = (PdfArray)PdfReader.getPdfObject(pageDic.get(PdfName.ANNOTS), pageDic);
+ if (annots != null) {
+ if (removeRefFromArray(annots, ref) == 0) {
+ pageDic.remove(PdfName.ANNOTS);
+ markUsed(pageDic);
+ }
+ else
+ markUsed(annots);
+ }
+ PdfReader.killIndirect(ref);
+ PdfIndirectReference kid = ref;
+ while ((ref = (PdfIndirectReference)wd.get(PdfName.PARENT)) != null) {
+ wd = (PdfDictionary)PdfReader.getPdfObject(ref);
+ PdfArray kids = (PdfArray)PdfReader.getPdfObject(wd.get(PdfName.KIDS));
+ if (removeRefFromArray(kids, kid) != 0)
+ break;
+ kid = ref;
+ PdfReader.killIndirect(ref);
+ }
+ if (ref == null) {
+ removeRefFromArray(arrayf, kid);
+ markUsed(arrayf);
+ }
+ if (page != -1) {
+ item.merged.remove(k);
+ item.page.remove(k);
+ item.values.remove(k);
+ item.widget_refs.remove(k);
+ item.widgets.remove(k);
+ --k;
+ }
+ }
+ if (page == -1 || item.merged.size() == 0)
+ fields.remove(name);
+ return true;
+ }
+
+ /**
+ * Removes a field from the document.
+ * @param name the field name
+ * @return <CODE>true</CODE> if the field exists, <CODE>false otherwise</CODE>
+ */
+ public boolean removeField(String name) {
+ return removeField(name, -1);
+ }
+
+ /** Gets the property generateAppearances.
+ * @return the property generateAppearances
+ */
+ public boolean isGenerateAppearances() {
+ return this.generateAppearances;
+ }
+
+ /** Sets the option to generate appearances. Not generating apperances
+ * will speed-up form filling but the results can be
+ * unexpected in Acrobat. Don't use it unless your environment is well
+ * controlled. The default is <CODE>true</CODE>.
+ * @param generateAppearances the option to generate appearances
+ */
+ public void setGenerateAppearances(boolean generateAppearances) {
+ this.generateAppearances = generateAppearances;
+ PdfDictionary top = (PdfDictionary)PdfReader.getPdfObject(reader.getCatalog().get(PdfName.ACROFORM));
+ if (generateAppearances)
+ top.remove(PdfName.NEEDAPPEARANCES);
+ else
+ top.put(PdfName.NEEDAPPEARANCES, PdfBoolean.PDFTRUE);
+ }
+
+ /** The field representations for retrieval and modification. */
+ public static class Item {
+ /** An array of <CODE>PdfDictionary</CODE> where the value tag /V
+ * is present.
+ */
+ public ArrayList values = new ArrayList();
+ /** An array of <CODE>PdfDictionary</CODE> with the widgets.
+ */
+ public ArrayList widgets = new ArrayList();
+ /** An array of <CODE>PdfDictionary</CODE> with the widget references.
+ */
+ public ArrayList widget_refs = new ArrayList();
+ /** An array of <CODE>PdfDictionary</CODE> with all the field
+ * and widget tags merged.
+ */
+ public ArrayList merged = new ArrayList();
+ /** An array of <CODE>Integer</CODE> with the page numbers where
+ * the widgets are displayed.
+ */
+ public ArrayList page = new ArrayList();
+ /** An array of <CODE>Integer</CODE> with the tab order of the field in the page.
+ */
+ public ArrayList tabOrder = new ArrayList();
+ }
+
+ private static class InstHit {
+ IntHashtable hits;
+ public InstHit(int inst[]) {
+ if (inst == null)
+ return;
+ hits = new IntHashtable();
+ for (int k = 0; k < inst.length; ++k)
+ hits.put(inst[k], 1);
+ }
+
+ public boolean isHit(int n) {
+ if (hits == null)
+ return true;
+ return hits.containsKey(n);
+ }
+ }
+
+ /**
+ * Gets the field names that have signatures and are signed.
+ * @return the field names that have signatures and are signed
+ */
+ public ArrayList getSignatureNames() {
+ if (sigNames != null)
+ return new ArrayList(sigNames.keySet());
+ sigNames = new HashMap();
+ ArrayList sorter = new ArrayList();
+ for (Iterator it = fields.entrySet().iterator(); it.hasNext();) {
+ Map.Entry entry = (Map.Entry)it.next();
+ Item item = (Item)entry.getValue();
+ PdfDictionary merged = (PdfDictionary)item.merged.get(0);
+ if (!PdfName.SIG.equals(merged.get(PdfName.FT)))
+ continue;
+ PdfObject vo = PdfReader.getPdfObject(merged.get(PdfName.V));
+ if (vo == null || vo.type() != PdfObject.DICTIONARY)
+ continue;
+ PdfDictionary v = (PdfDictionary)vo;
+ PdfObject contents = v.get(PdfName.CONTENTS);
+ if (contents == null || contents.type() != PdfObject.STRING)
+ continue;
+ PdfObject ro = v.get(PdfName.BYTERANGE);
+ if (ro == null || ro.type() != PdfObject.ARRAY)
+ continue;
+ ArrayList ra = ((PdfArray)ro).getArrayList();
+ if (ra.size() < 2)
+ continue;
+ int length = ((PdfNumber)ra.get(ra.size() - 1)).intValue() + ((PdfNumber)ra.get(ra.size() - 2)).intValue();
+ sorter.add(new Object[]{entry.getKey(), new int[]{length, 0}});
+ }
+ Collections.sort(sorter, new AcroFields.SorterComparator());
+ if (sorter.size() > 0) {
+ if (((int[])((Object[])sorter.get(sorter.size() - 1))[1])[0] == reader.getFileLength())
+ totalRevisions = sorter.size();
+ else
+ totalRevisions = sorter.size() + 1;
+ for (int k = 0; k < sorter.size(); ++k) {
+ Object objs[] = (Object[])sorter.get(k);
+ String name = (String)objs[0];
+ int p[] = (int[])objs[1];
+ p[1] = k + 1;
+ sigNames.put(name, p);
+ }
+ }
+ return new ArrayList(sigNames.keySet());
+ }
+
+ /**
+ * Gets the field names that have blank signatures.
+ * @return the field names that have blank signatures
+ */
+ public ArrayList getBlankSignatureNames() {
+ getSignatureNames();
+ ArrayList sigs = new ArrayList();
+ for (Iterator it = fields.entrySet().iterator(); it.hasNext();) {
+ Map.Entry entry = (Map.Entry)it.next();
+ Item item = (Item)entry.getValue();
+ PdfDictionary merged = (PdfDictionary)item.merged.get(0);
+ if (!PdfName.SIG.equals(merged.get(PdfName.FT)))
+ continue;
+ if (sigNames.containsKey(entry.getKey()))
+ continue;
+ sigs.add(entry.getKey());
+ }
+ return sigs;
+ }
+
+ /**
+ * Gets the signature dictionary, the one keyed by /V.
+ * @param name the field name
+ * @return the signature dictionary keyed by /V or <CODE>null</CODE> if the field is not
+ * a signature
+ */
+ public PdfDictionary getSignatureDictionary(String name) {
+ getSignatureNames();
+ if (!sigNames.containsKey(name))
+ return null;
+ Item item = (Item)fields.get(name);
+ PdfDictionary merged = (PdfDictionary)item.merged.get(0);
+ return (PdfDictionary)PdfReader.getPdfObject(merged.get(PdfName.V));
+ }
+
+ /**
+ * Checks is the signature covers the entire document or just part of it.
+ * @param name the signature field name
+ * @return <CODE>true</CODE> if the signature covers the entire document,
+ * <CODE>false</CODE> otherwise
+ */
+ public boolean signatureCoversWholeDocument(String name) {
+ getSignatureNames();
+ if (!sigNames.containsKey(name))
+ return false;
+ return ((int[])sigNames.get(name))[0] == reader.getFileLength();
+ }
+
+ /**
+ * Verifies a signature. An example usage is:
+ * <p>
+ * <pre>
+ * KeyStore kall = PdfPKCS7.loadCacertsKeyStore();
+ * PdfReader reader = new PdfReader("my_signed_doc.pdf");
+ * AcroFields af = reader.getAcroFields();
+ * ArrayList names = af.getSignatureNames();
+ * for (int k = 0; k < names.size(); ++k) {
+ * String name = (String)names.get(k);
+ * System.out.println("Signature name: " + name);
+ * System.out.println("Signature covers whole document: " + af.signatureCoversWholeDocument(name));
+ * PdfPKCS7 pk = af.verifySignature(name);
+ * Calendar cal = pk.getSignDate();
+ * Certificate pkc[] = pk.getCertificates();
+ * System.out.println("Subject: " + PdfPKCS7.getSubjectFields(pk.getSigningCertificate()));
+ * System.out.println("Document modified: " + !pk.verify());
+ * Object fails[] = PdfPKCS7.verifyCertificates(pkc, kall, null, cal);
+ * if (fails == null)
+ * System.out.println("Certificates verified against the KeyStore");
+ * else
+ * System.out.println("Certificate failed: " + fails[1]);
+ * }
+ * </pre>
+ * @param name the signature field name
+ * @return a <CODE>PdfPKCS7</CODE> class to continue the verification
+ */
+ public PdfPKCS7 verifySignature(String name) {
+ return verifySignature(name, null);
+ }
+
+ /**
+ * Verifies a signature. An example usage is:
+ * <p>
+ * <pre>
+ * KeyStore kall = PdfPKCS7.loadCacertsKeyStore();
+ * PdfReader reader = new PdfReader("my_signed_doc.pdf");
+ * AcroFields af = reader.getAcroFields();
+ * ArrayList names = af.getSignatureNames();
+ * for (int k = 0; k < names.size(); ++k) {
+ * String name = (String)names.get(k);
+ * System.out.println("Signature name: " + name);
+ * System.out.println("Signature covers whole document: " + af.signatureCoversWholeDocument(name));
+ * PdfPKCS7 pk = af.verifySignature(name);
+ * Calendar cal = pk.getSignDate();
+ * Certificate pkc[] = pk.getCertificates();
+ * System.out.println("Subject: " + PdfPKCS7.getSubjectFields(pk.getSigningCertificate()));
+ * System.out.println("Document modified: " + !pk.verify());
+ * Object fails[] = PdfPKCS7.verifyCertificates(pkc, kall, null, cal);
+ * if (fails == null)
+ * System.out.println("Certificates verified against the KeyStore");
+ * else
+ * System.out.println("Certificate failed: " + fails[1]);
+ * }
+ * </pre>
+ * @param name the signature field name
+ * @param provider the provider or <code>null</code> for the default provider
+ * @return a <CODE>PdfPKCS7</CODE> class to continue the verification
+ */
+ public PdfPKCS7 verifySignature(String name, String provider) {
+ PdfDictionary v = getSignatureDictionary(name);
+ if (v == null)
+ return null;
+ try {
+ PdfName sub = (PdfName)PdfReader.getPdfObject(v.get(PdfName.SUBFILTER));
+ PdfString contents = (PdfString)PdfReader.getPdfObject(v.get(PdfName.CONTENTS));
+ PdfPKCS7 pk = null;
+ if (sub.equals(PdfName.ADBE_X509_RSA_SHA1)) {
+ PdfString cert = (PdfString)PdfReader.getPdfObject(v.get(PdfName.CERT));
+ pk = new PdfPKCS7(contents.getOriginalBytes(), cert.getBytes(), provider);
+ }
+ else
+ pk = new PdfPKCS7(contents.getOriginalBytes(), provider);
+ updateByteRange(pk, v);
+ PdfString str = (PdfString)PdfReader.getPdfObject(v.get(PdfName.M));
+ if (str != null)
+ pk.setSignDate(PdfDate.decode(str.toString()));
+ str = (PdfString)PdfReader.getPdfObject(v.get(PdfName.NAME));
+ if (str != null)
+ pk.setSignName(str.toUnicodeString());
+ str = (PdfString)PdfReader.getPdfObject(v.get(PdfName.REASON));
+ if (str != null)
+ pk.setReason(str.toUnicodeString());
+ str = (PdfString)PdfReader.getPdfObject(v.get(PdfName.LOCATION));
+ if (str != null)
+ pk.setLocation(str.toUnicodeString());
+ return pk;
+ }
+ catch (Exception e) {
+ throw new ExceptionConverter(e);
+ }
+ }
+
+ private void updateByteRange(PdfPKCS7 pkcs7, PdfDictionary v) {
+ PdfArray b = (PdfArray)PdfReader.getPdfObject(v.get(PdfName.BYTERANGE));
+ RandomAccessFileOrArray rf = reader.getSafeFile();
+ try {
+ rf.reOpen();
+ byte buf[] = new byte[8192];
+ ArrayList ar = b.getArrayList();
+ for (int k = 0; k < ar.size(); ++k) {
+ int start = ((PdfNumber)ar.get(k)).intValue();
+ int length = ((PdfNumber)ar.get(++k)).intValue();
+ rf.seek(start);
+ while (length > 0) {
+ int rd = rf.read(buf, 0, Math.min(length, buf.length));
+ if (rd <= 0)
+ break;
+ length -= rd;
+ pkcs7.update(buf, 0, rd);
+ }
+ }
+ }
+ catch (Exception e) {
+ throw new ExceptionConverter(e);
+ }
+ finally {
+ try{rf.close();}catch(Exception e){}
+ }
+ }
+
+ private void markUsed(PdfObject obj) {
+ if (!append)
+ return;
+ ((PdfStamperImp)writer).markUsed(obj);
+ }
+
+ /**
+ * Gets the total number of revisions this document has.
+ * @return the total number of revisions
+ */
+ public int getTotalRevisions() {
+ getSignatureNames();
+ return this.totalRevisions;
+ }
+
+ /**
+ * Gets this <CODE>field</CODE> revision.
+ * @param field the signature field name
+ * @return the revision or zero if it's not a signature field
+ */
+ public int getRevision(String field) {
+ getSignatureNames();
+ if (!sigNames.containsKey(field))
+ return 0;
+ return ((int[])sigNames.get(field))[1];
+ }
+
+ /**
+ * Extracts a revision from the document.
+ * @param field the signature field name
+ * @return an <CODE>InputStream</CODE> covering the revision. Returns <CODE>null</CODE> if
+ * it's not a signature field
+ * @throws IOException on error
+ */
+ public InputStream extractRevision(String field) throws IOException {
+ getSignatureNames();
+ int length = ((int[])sigNames.get(field))[0];
+ RandomAccessFileOrArray raf = reader.getSafeFile();
+ raf.reOpen();
+ raf.seek(0);
+ return new RevisionStream(raf, length);
+ }
+
+ /**
+ * Gets the appearances cache.
+ * @return the appearances cache
+ */
+ public HashMap getFieldCache() {
+ return this.fieldCache;
+ }
+
+ /**
+ * Sets a cache for field appearances. Parsing the existing PDF to
+ * create a new TextField is time expensive. For those tasks that repeatedly
+ * fill the same PDF with different field values the use of the cache has dramatic
+ * speed advantages. An example usage:
+ * <p>
+ * <pre>
+ * String pdfFile = ...;// the pdf file used as template
+ * ArrayList xfdfFiles = ...;// the xfdf file names
+ * ArrayList pdfOutFiles = ...;// the output file names, one for each element in xpdfFiles
+ * HashMap cache = new HashMap();// the appearances cache
+ * PdfReader originalReader = new PdfReader(pdfFile);
+ * for (int k = 0; k < xfdfFiles.size(); ++k) {
+ * PdfReader reader = new PdfReader(originalReader);
+ * XfdfReader xfdf = new XfdfReader((String)xfdfFiles.get(k));
+ * PdfStamper stp = new PdfStamper(reader, new FileOutputStream((String)pdfOutFiles.get(k)));
+ * AcroFields af = stp.getAcroFields();
+ * af.setFieldCache(cache);
+ * af.setFields(xfdf);
+ * stp.close();
+ * }
+ * </pre>
+ * @param fieldCache an HasMap that will carry the cached appearances
+ */
+ public void setFieldCache(HashMap fieldCache) {
+ this.fieldCache = fieldCache;
+ }
+
+ /**
+ * Sets extra margins in text fields to better mimic the Acrobat layout.
+ * @param extraMarginLeft the extra marging left
+ * @param extraMarginTop the extra margin top
+ */
+ public void setExtraMargin(float extraMarginLeft, float extraMarginTop) {
+ this.extraMarginLeft = extraMarginLeft;
+ this.extraMarginTop = extraMarginTop;
+ }
+
+ /**
+ * Adds a substitution font to the list. The fonts in this list will be used if the original
+ * font doesn't contain the needed glyphs.
+ * @param font the font
+ */
+ public void addSubstitutionFont(BaseFont font) {
+ if (substitutionFonts == null)
+ substitutionFonts = new ArrayList();
+ substitutionFonts.add(font);
+ }
+
+ private static final HashMap stdFieldFontNames = new HashMap();
+
+ /**
+ * Holds value of property totalRevisions.
+ */
+ private int totalRevisions;
+
+ /**
+ * Holds value of property fieldCache.
+ */
+ private HashMap fieldCache;
+
+ static {
+ stdFieldFontNames.put("CoBO", new String[]{"Courier-BoldOblique"});
+ stdFieldFontNames.put("CoBo", new String[]{"Courier-Bold"});
+ stdFieldFontNames.put("CoOb", new String[]{"Courier-Oblique"});
+ stdFieldFontNames.put("Cour", new String[]{"Courier"});
+ stdFieldFontNames.put("HeBO", new String[]{"Helvetica-BoldOblique"});
+ stdFieldFontNames.put("HeBo", new String[]{"Helvetica-Bold"});
+ stdFieldFontNames.put("HeOb", new String[]{"Helvetica-Oblique"});
+ stdFieldFontNames.put("Helv", new String[]{"Helvetica"});
+ stdFieldFontNames.put("Symb", new String[]{"Symbol"});
+ stdFieldFontNames.put("TiBI", new String[]{"Times-BoldItalic"});
+ stdFieldFontNames.put("TiBo", new String[]{"Times-Bold"});
+ stdFieldFontNames.put("TiIt", new String[]{"Times-Italic"});
+ stdFieldFontNames.put("TiRo", new String[]{"Times-Roman"});
+ stdFieldFontNames.put("ZaDb", new String[]{"ZapfDingbats"});
+ stdFieldFontNames.put("HySm", new String[]{"HYSMyeongJo-Medium", "UniKS-UCS2-H"});
+ stdFieldFontNames.put("HyGo", new String[]{"HYGoThic-Medium", "UniKS-UCS2-H"});
+ stdFieldFontNames.put("KaGo", new String[]{"HeiseiKakuGo-W5", "UniKS-UCS2-H"});
+ stdFieldFontNames.put("KaMi", new String[]{"HeiseiMin-W3", "UniJIS-UCS2-H"});
+ stdFieldFontNames.put("MHei", new String[]{"MHei-Medium", "UniCNS-UCS2-H"});
+ stdFieldFontNames.put("MSun", new String[]{"MSung-Light", "UniCNS-UCS2-H"});
+ stdFieldFontNames.put("STSo", new String[]{"STSong-Light", "UniGB-UCS2-H"});
+ }
+
+ private static class RevisionStream extends InputStream {
+ private byte b[] = new byte[1];
+ private RandomAccessFileOrArray raf;
+ private int length;
+ private int rangePosition = 0;
+ private boolean closed;
+
+ private RevisionStream(RandomAccessFileOrArray raf, int length) {
+ this.raf = raf;
+ this.length = length;
+ }
+
+ public int read() throws IOException {
+ int n = read(b);
+ if (n != 1)
+ return -1;
+ return b[0] & 0xff;
+ }
+
+ public int read(byte[] b, int off, int len) throws IOException {
+ if (b == null) {
+ throw new NullPointerException();
+ } else if ((off < 0) || (off > b.length) || (len < 0) ||
+ ((off + len) > b.length) || ((off + len) < 0)) {
+ throw new IndexOutOfBoundsException();
+ } else if (len == 0) {
+ return 0;
+ }
+ if (rangePosition >= length) {
+ close();
+ return -1;
+ }
+ int elen = Math.min(len, length - rangePosition);
+ raf.readFully(b, off, elen);
+ rangePosition += elen;
+ return elen;
+ }
+
+ public void close() throws IOException {
+ if (!closed) {
+ raf.close();
+ closed = true;
+ }
+ }
+ }
+
+ private static class SorterComparator implements Comparator {
+ public int compare(Object o1, Object o2) {
+ int n1 = ((int[])((Object[])o1)[1])[0];
+ int n2 = ((int[])((Object[])o2)[1])[0];
+ return n1 - n2;
+ }
+ }
+
+ /**
+ * Gets the list of substitution fonts. The list is composed of <CODE>BaseFont</CODE> and can be <CODE>null</CODE>. The fonts in this list will be used if the original
+ * font doesn't contain the needed glyphs.
+ * @return the list
+ */
+ public ArrayList getSubstitutionFonts() {
+ return substitutionFonts;
+ }
+
+ /**
+ * Sets a list of substitution fonts. The list is composed of <CODE>BaseFont</CODE> and can also be <CODE>null</CODE>. The fonts in this list will be used if the original
+ * font doesn't contain the needed glyphs.
+ * @param substitutionFonts the list
+ */
+ public void setSubstitutionFonts(ArrayList substitutionFonts) {
+ this.substitutionFonts = substitutionFonts;
+ }
+}
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