Source Code Cross Referenced for PDChoiceField.java in  » PDF » PDFBox-0.7.3 » org » pdfbox » pdmodel » interactive » form » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » PDF » PDFBox 0.7.3 » org.pdfbox.pdmodel.interactive.form 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /**
002:         * Copyright (c) 2003-2006, www.pdfbox.org
003:         * All rights reserved.
004:         *
005:         * Redistribution and use in source and binary forms, with or without
006:         * modification, are permitted provided that the following conditions are met:
007:         *
008:         * 1. Redistributions of source code must retain the above copyright notice,
009:         *    this list of conditions and the following disclaimer.
010:         * 2. Redistributions in binary form must reproduce the above copyright notice,
011:         *    this list of conditions and the following disclaimer in the documentation
012:         *    and/or other materials provided with the distribution.
013:         * 3. Neither the name of pdfbox; nor the names of its
014:         *    contributors may be used to endorse or promote products derived from this
015:         *    software without specific prior written permission.
016:         *
017:         * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
018:         * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
019:         * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
020:         * DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
021:         * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
022:         * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
023:         * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
024:         * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
025:         * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
026:         * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
027:         *
028:         * http://www.pdfbox.org
029:         *
030:         */package org.pdfbox.pdmodel.interactive.form;
031:
032:        import java.io.IOException;
033:
034:        import org.pdfbox.cos.COSArray;
035:        import org.pdfbox.cos.COSBase;
036:        import org.pdfbox.cos.COSDictionary;
037:        import org.pdfbox.cos.COSName;
038:        import org.pdfbox.cos.COSString;
039:        import org.pdfbox.cos.COSInteger;
040:
041:        /**
042:         * A class for handling the PDF field as a choicefield.
043:         *
044:         * @author sug
045:         * @version $Revision: 1.7 $
046:         */
047:        public class PDChoiceField extends PDVariableText {
048:
049:            /**
050:             * @see org.pdfbox.pdmodel.interactive.form.PDField#PDField(PDAcroForm,COSDictionary)
051:             *
052:             * @param theAcroForm The acroForm for this field.
053:             * @param field The field for this choice field.
054:             */
055:            public PDChoiceField(PDAcroForm theAcroForm, COSDictionary field) {
056:                super (theAcroForm, field);
057:            }
058:
059:            /**
060:             * @see org.pdfbox.pdmodel.interactive.form.PDField#setValue(java.lang.String)
061:             *
062:             * @param optionValue The new value for this text field.
063:             *
064:             * @throws IOException If there is an error calculating the appearance stream or the value in not one
065:             *   of the existing options.
066:             */
067:            public void setValue(String optionValue) throws IOException {
068:                int indexSelected = -1;
069:                COSArray options = (COSArray) getDictionary()
070:                        .getDictionaryObject("Opt");
071:                if (options.size() == 0) {
072:                    throw new IOException(
073:                            "Error: You cannot set a value for a choice field if there are no options.");
074:                } else {
075:                    COSBase option = options.getObject(0);
076:                    if (option instanceof  COSArray) {
077:                        for (int i = 0; i < options.size()
078:                                && indexSelected == -1; i++) {
079:                            COSArray keyValuePair = (COSArray) options.get(i);
080:                            COSString key = (COSString) keyValuePair
081:                                    .getObject(0);
082:                            COSString value = (COSString) keyValuePair
083:                                    .getObject(1);
084:                            if (optionValue.equals(key.getString())
085:                                    || optionValue.equals(value.getString())) {
086:                                //have the parent draw the appearance stream with the value
087:                                super .setValue(value.getString());
088:                                //but then use the key as the V entry
089:                                getDictionary().setItem(
090:                                        COSName.getPDFName("V"), key);
091:                                indexSelected = i;
092:                            }
093:                        }
094:                    } else {
095:                        for (int i = 0; i < options.size()
096:                                && indexSelected == -1; i++) {
097:                            COSString value = (COSString) options.get(i);
098:                            if (optionValue.equals(value.getString())) {
099:                                super .setValue(optionValue);
100:                                indexSelected = i;
101:                            }
102:                        }
103:                    }
104:                }
105:                if (indexSelected == -1) {
106:                    throw new IOException("Error: '" + optionValue
107:                            + "' was not an available option.");
108:                } else {
109:                    COSArray indexArray = (COSArray) getDictionary()
110:                            .getDictionaryObject("I");
111:                    if (indexArray != null) {
112:                        indexArray.clear();
113:                        indexArray.add(new COSInteger(indexSelected));
114:                    }
115:                }
116:            }
117:
118:        }
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