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/*
* $Id: PdfAcroForm.java 3912 2009-04-26 08:38:15Z blowagie $
*
* Copyright 2002 Bruno Lowagie
*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (the "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the License.
*
* The Original Code is 'iText, a free JAVA-PDF library'.
*
* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
* the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
* All Rights Reserved.
* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
* are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
*
* Contributor(s): all the names of the contributors are added in the source code
* where applicable.
*
* Alternatively, the contents of this file may be used under the terms of the
* LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
* provisions of LGPL are applicable instead of those above. If you wish to
* allow use of your version of this file only under the terms of the LGPL
* License and not to allow others to use your version of this file under
* the MPL, indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by the LGPL.
* If you do not delete the provisions above, a recipient may use your version
* of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the MPL as stated above or under the terms of the GNU
* Library General Public License as published by the Free Software Foundation;
* either version 2 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
* details.
*
* If you didn't download this code from the following link, you should check if
* you aren't using an obsolete version:
* http://www.lowagie.com/iText/
*/
package com.aowagie.text.pdf;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedHashMap;
import com.aowagie.text.ExceptionConverter;
import com.aowagie.text.Rectangle;
/**
* Each PDF document can contain maximum 1 AcroForm.
*/
public class PdfAcroForm extends PdfDictionary {
private final PdfWriter writer;
/** This is a map containing FieldTemplates. */
private final HashMap fieldTemplates = new LinkedHashMap();
/** This is an array containing DocumentFields. */
private final PdfArray documentFields = new PdfArray();
/** This is an array containing the calculationorder of the fields. */
private final PdfArray calculationOrder = new PdfArray();
/** Contains the signature flags. */
private int sigFlags = 0;
/** Creates new PdfAcroForm
* @param writer Writer to create
*/
public PdfAcroForm(final PdfWriter writer) {
super();
this.writer = writer;
}
public void setNeedAppearances(final boolean value) {
put(PdfName.NEEDAPPEARANCES, new PdfBoolean(value));
}
/**
* Adds fieldTemplates.
* @param ft Map to set
*/
public void addFieldTemplates(final HashMap ft) {
this.fieldTemplates.putAll(ft);
}
/**
* Adds documentFields.
* @param ref Reference to set
*/
public void addDocumentField(final PdfIndirectReference ref) {
this.documentFields.add(ref);
}
/**
* Checks if the Acroform is valid
* @return true if the Acroform is valid
*/
public boolean isValid() {
if (this.documentFields.size() == 0) {
return false;
}
put(PdfName.FIELDS, this.documentFields);
if (this.sigFlags != 0) {
put(PdfName.SIGFLAGS, new PdfNumber(this.sigFlags));
}
if (this.calculationOrder.size() > 0) {
put(PdfName.CO, this.calculationOrder);
}
if (this.fieldTemplates.isEmpty()) {
return true;
}
final PdfDictionary dic = new PdfDictionary();
for (final Iterator it = this.fieldTemplates.keySet().iterator(); it.hasNext();) {
final PdfTemplate template = (PdfTemplate)it.next();
PdfFormField.mergeResources(dic, (PdfDictionary)template.getResources());
}
put(PdfName.DR, dic);
put(PdfName.DA, new PdfString("/Helv 0 Tf 0 g "));
final PdfDictionary fonts = (PdfDictionary)dic.get(PdfName.FONT);
if (fonts != null) {
this.writer.eliminateFontSubset(fonts);
}
return true;
}
/**
* Adds an object to the calculationOrder.
* @param formField FormField to set
*/
public void addCalculationOrder(final PdfFormField formField) {
this.calculationOrder.add(formField.getIndirectReference());
}
/**
* Sets the signature flags.
* @param f Flags to set
*/
public void setSigFlags(final int f) {
this.sigFlags |= f;
}
/**
* Adds a formfield to the AcroForm.
* @param formField
*/
private void addFormField(final PdfFormField formField) {
this.writer.addAnnotation(formField);
}
/**
* @param button
* @param characteristics
* @param name
* @param value
*/
private void setButtonParams(final PdfFormField button, final int characteristics, final String name, final String value) {
button.setButton(characteristics);
button.setFlags(PdfAnnotation.FLAGS_PRINT);
button.setPage();
button.setFieldName(name);
if (value != null) {
button.setValueAsString(value);
}
}
/**
* @param button
* @param caption
* @param font
* @param fontSize
* @param llx
* @param lly
* @param urx
* @param ury
*/
private void drawButton(final PdfFormField button, final String caption, final BaseFont font, final float fontSize, final float llx, final float lly, final float urx, final float ury) {
final PdfAppearance pa = PdfAppearance.createAppearance(this.writer, urx - llx, ury - lly);
pa.drawButton(0f, 0f, urx - llx, ury - lly, caption, font, fontSize);
button.setAppearance(PdfAnnotation.APPEARANCE_NORMAL, pa);
}
/**
* @param field
* @param text
* @param name
* @param llx
* @param lly
* @param urx
* @param ury
*/
private void setTextFieldParams(final PdfFormField field, final String text, final String name, final float llx, final float lly, final float urx, final float ury) {
field.setWidget(new Rectangle(llx, lly, urx, ury), PdfAnnotation.HIGHLIGHT_INVERT);
field.setValueAsString(text);
field.setDefaultValueAsString(text);
field.setFieldName(name);
field.setFlags(PdfAnnotation.FLAGS_PRINT);
field.setPage();
}
/**
* @param field
* @param text
* @param font
* @param fontSize
* @param llx
* @param lly
* @param urx
* @param ury
*/
private void drawSingleLineOfText(final PdfFormField field, final String text, final BaseFont font, final float fontSize, final float llx, final float lly, final float urx, final float ury) {
final PdfAppearance tp = PdfAppearance.createAppearance(this.writer, urx - llx, ury - lly);
final PdfAppearance tp2 = (PdfAppearance)tp.getDuplicate();
tp2.setFontAndSize(font, fontSize);
tp2.resetRGBColorFill();
field.setDefaultAppearanceString(tp2);
tp.drawTextField(0f, 0f, urx - llx, ury - lly);
tp.beginVariableText();
tp.saveState();
tp.rectangle(3f, 3f, urx - llx - 6f, ury - lly - 6f);
tp.clip();
tp.newPath();
tp.beginText();
tp.setFontAndSize(font, fontSize);
tp.resetRGBColorFill();
tp.setTextMatrix(4, (ury - lly) / 2 - fontSize * 0.3f);
tp.showText(text);
tp.endText();
tp.restoreState();
tp.endVariableText();
field.setAppearance(PdfAnnotation.APPEARANCE_NORMAL, tp);
}
/**
* @param field
* @param text
* @param font
* @param fontSize
* @param llx
* @param lly
* @param urx
* @param ury
*/
private void drawMultiLineOfText(final PdfFormField field, final String text, final BaseFont font, final float fontSize, final float llx, final float lly, final float urx, final float ury) {
final PdfAppearance tp = PdfAppearance.createAppearance(this.writer, urx - llx, ury - lly);
final PdfAppearance tp2 = (PdfAppearance)tp.getDuplicate();
tp2.setFontAndSize(font, fontSize);
tp2.resetRGBColorFill();
field.setDefaultAppearanceString(tp2);
tp.drawTextField(0f, 0f, urx - llx, ury - lly);
tp.beginVariableText();
tp.saveState();
tp.rectangle(3f, 3f, urx - llx - 6f, ury - lly - 6f);
tp.clip();
tp.newPath();
tp.beginText();
tp.setFontAndSize(font, fontSize);
tp.resetRGBColorFill();
tp.setTextMatrix(4, 5);
final java.util.StringTokenizer tokenizer = new java.util.StringTokenizer(text, "\n");
float yPos = ury - lly;
while (tokenizer.hasMoreTokens()) {
yPos -= fontSize * 1.2f;
tp.showTextAligned(PdfContentByte.ALIGN_LEFT, tokenizer.nextToken(), 3, yPos, 0);
}
tp.endText();
tp.restoreState();
tp.endVariableText();
field.setAppearance(PdfAnnotation.APPEARANCE_NORMAL, tp);
}
/**
* @param field
* @param name
* @param value
* @param status
* @param llx
* @param lly
* @param urx
* @param ury
*/
private void setCheckBoxParams(final PdfFormField field, final String name, final String value, final boolean status, final float llx, final float lly, final float urx, final float ury) {
field.setWidget(new Rectangle(llx, lly, urx, ury), PdfAnnotation.HIGHLIGHT_TOGGLE);
field.setFieldName(name);
if (status) {
field.setValueAsName(value);
field.setAppearanceState(value);
}
else {
field.setValueAsName("Off");
field.setAppearanceState("Off");
}
field.setFlags(PdfAnnotation.FLAGS_PRINT);
field.setPage();
field.setBorderStyle(new PdfBorderDictionary(1, PdfBorderDictionary.STYLE_SOLID));
}
/**
* @param field
* @param value
* @param llx
* @param lly
* @param urx
* @param ury
*/
private void drawCheckBoxAppearences(final PdfFormField field, final String value, final float llx, final float lly, final float urx, final float ury) {
BaseFont font = null;
try {
font = BaseFont.createFont(BaseFont.ZAPFDINGBATS, BaseFont.WINANSI, BaseFont.NOT_EMBEDDED);
}
catch(final Exception e) {
throw new ExceptionConverter(e);
}
final float size = ury - lly;
final PdfAppearance tpOn = PdfAppearance.createAppearance(this.writer, urx - llx, ury - lly);
final PdfAppearance tp2 = (PdfAppearance)tpOn.getDuplicate();
tp2.setFontAndSize(font, size);
tp2.resetRGBColorFill();
field.setDefaultAppearanceString(tp2);
tpOn.drawTextField(0f, 0f, urx - llx, ury - lly);
tpOn.saveState();
tpOn.resetRGBColorFill();
tpOn.beginText();
tpOn.setFontAndSize(font, size);
tpOn.showTextAligned(PdfContentByte.ALIGN_CENTER, "4", (urx - llx) / 2, (ury - lly) / 2 - size * 0.3f, 0);
tpOn.endText();
tpOn.restoreState();
field.setAppearance(PdfAnnotation.APPEARANCE_NORMAL, value, tpOn);
final PdfAppearance tpOff = PdfAppearance.createAppearance(this.writer, urx - llx, ury - lly);
tpOff.drawTextField(0f, 0f, urx - llx, ury - lly);
field.setAppearance(PdfAnnotation.APPEARANCE_NORMAL, "Off", tpOff);
}
/**
* @param field
* @param value
* @param llx
* @param lly
* @param urx
* @param ury
*/
private void drawRadioAppearences(final PdfFormField field, final String value, final float llx, final float lly, final float urx, final float ury) {
final PdfAppearance tpOn = PdfAppearance.createAppearance(this.writer, urx - llx, ury - lly);
tpOn.drawRadioField(0f, 0f, urx - llx, ury - lly, true);
field.setAppearance(PdfAnnotation.APPEARANCE_NORMAL, value, tpOn);
final PdfAppearance tpOff = PdfAppearance.createAppearance(this.writer, urx - llx, ury - lly);
tpOff.drawRadioField(0f, 0f, urx - llx, ury - lly, false);
field.setAppearance(PdfAnnotation.APPEARANCE_NORMAL, "Off", tpOff);
}
/**
* @param field
* @param name
* @param defaultValue
* @param llx
* @param lly
* @param urx
* @param ury
*/
private void setChoiceParams(final PdfFormField field, final String name, final String defaultValue, final float llx, final float lly, final float urx, final float ury) {
field.setWidget(new Rectangle(llx, lly, urx, ury), PdfAnnotation.HIGHLIGHT_INVERT);
if (defaultValue != null) {
field.setValueAsString(defaultValue);
field.setDefaultValueAsString(defaultValue);
}
field.setFieldName(name);
field.setFlags(PdfAnnotation.FLAGS_PRINT);
field.setPage();
field.setBorderStyle(new PdfBorderDictionary(2, PdfBorderDictionary.STYLE_SOLID));
}
}
