From 13d6dc3a6a5e8bd3c17997351a0e6f087eb301a2 Mon Sep 17 00:00:00 2001 From: tknall Date: Tue, 25 Nov 2008 12:04:30 +0000 Subject: Removing itext from source. git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@302 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c --- src/main/java/com/lowagie/text/pdf/AcroFields.java | 1883 -------------------- 1 file changed, 1883 deletions(-) delete mode 100644 src/main/java/com/lowagie/text/pdf/AcroFields.java (limited to 'src/main/java/com/lowagie/text/pdf/AcroFields.java') diff --git a/src/main/java/com/lowagie/text/pdf/AcroFields.java b/src/main/java/com/lowagie/text/pdf/AcroFields.java deleted file mode 100644 index 30e33ca..0000000 --- a/src/main/java/com/lowagie/text/pdf/AcroFields.java +++ /dev/null @@ -1,1883 +0,0 @@ -/* - * 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 null 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 - * null. - * @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 - * null. - * @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 exportValues - * or displayValues may be null but not both. This method will only - * set the list but will not set the value or appearance. For that, calling setField() - * is required. - *

- * An example: - *

- * 

-     * 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();
-     *
- * @param fieldName the field name - * @param exportValues the export values - * @param displayValues the display values - * @return true if the operation succeeded, false 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: FIELD_TYPE_PUSHBUTTON, - * FIELD_TYPE_CHECKBOX, FIELD_TYPE_RADIOBUTTON, - * FIELD_TYPE_TEXT, FIELD_TYPE_LIST, - * FIELD_TYPE_COMBO or FIELD_TYPE_SIGNATURE. - *

- * If the field does not exist or is invalid it returns - * FIELD_TYPE_NONE. - * @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 true if the renaming was successful, false - * 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: - *

- *

- * @param field the field name - * @param name the property name - * @param value the property value - * @param inst an array of int indexing into AcroField.Item.merged elements to process. - * Set to null to process all - * @return true if the property exists, false 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: - *

- *

- * @param field the field name - * @param name the property name - * @param value the property value - * @param inst an array of int indexing into AcroField.Item.merged elements to process. - * Set to null to process all - * @return true if the property exists, false 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 true if the field was found and changed, - * false 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 true if the field was found and changed, - * false 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 AcroFields.Item. - * @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 null 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 float - * 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 null 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 page. - * @param page the page to remove the fields from - * @return true if any field was removed, false otherwise - */ - 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 - * name 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 true if the field exists, false otherwise - */ - 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 true if the field exists, false otherwise - */ - 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 true. - * @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 PdfDictionary where the value tag /V - * is present. - */ - public ArrayList values = new ArrayList(); - /** An array of PdfDictionary with the widgets. - */ - public ArrayList widgets = new ArrayList(); - /** An array of PdfDictionary with the widget references. - */ - public ArrayList widget_refs = new ArrayList(); - /** An array of PdfDictionary with all the field - * and widget tags merged. - */ - public ArrayList merged = new ArrayList(); - /** An array of Integer with the page numbers where - * the widgets are displayed. - */ - public ArrayList page = new ArrayList(); - /** An array of Integer 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 null 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 true if the signature covers the entire document, - * false 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: - *

- * 

-     * 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]);
-     * }
-     *
- * @param name the signature field name - * @return a PdfPKCS7 class to continue the verification - */ - public PdfPKCS7 verifySignature(String name) { - return verifySignature(name, null); - } - - /** - * Verifies a signature. An example usage is: - *

- * 

-     * 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]);
-     * }
-     *
- * @param name the signature field name - * @param provider the provider or null for the default provider - * @return a PdfPKCS7 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 field 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 InputStream covering the revision. Returns null 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: - *

- * 

-     * 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();
-     * }
-     *
- * @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 BaseFont and can be null. 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 BaseFont and can also be null. 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; - } -} -- cgit v1.2.3