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1 package digilib.pdf;
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2
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3 import java.io.File;
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4 import java.io.IOException;
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5 import java.net.MalformedURLException;
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6 import java.net.URL;
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7
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8 import org.apache.log4j.Logger;
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9
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10 import com.itextpdf.text.Anchor;
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11 import com.itextpdf.text.BadElementException;
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12 import com.itextpdf.text.Chunk;
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13 import com.itextpdf.text.Element;
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14 import com.itextpdf.text.FontFactory;
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15 import com.itextpdf.text.Image;
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16 import com.itextpdf.text.Paragraph;
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17
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18 import digilib.io.FileOpException;
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19 import digilib.servlet.PDFCache;
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20 import digilib.servlet.PDFRequest;
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21
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22 /** A class for the generation of title pages for the generated pdf documents.
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23 *
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24 *
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25 */
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26 public class PDFTitlePage {
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27
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28 private PDFRequest job_info = null;
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29 private DigilibInfoReader info_reader= null;
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30 protected static Logger logger = Logger.getLogger("digilib.servlet");
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31
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32
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33 /**
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34 * Initialize a TitlePage
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35 * @param pdfji
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36 */
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37 public PDFTitlePage(PDFRequest pdfji){
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38 job_info = pdfji;
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39
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40 // use MPIWG-style info.xml
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41 info_reader = getInfoXmlReader(pdfji);
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42 }
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43
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44 /**
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45 * @param pdfji
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46 * @return
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47 */
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48 protected DigilibInfoReader getInfoXmlReader(PDFRequest pdfji) {
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49 try {
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50 // try to load ../presentation/info.xml
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51 File imgDir = pdfji.getImageJobInformation().getFileDirectory().getDir();
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52 File docDir = imgDir.getParentFile();
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53 File infoFn = new File(new File(docDir, "presentation"), "info.xml");
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54 return new DigilibInfoReader(infoFn.getAbsolutePath());
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55 } catch (FileOpException e) {
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56 logger.warn("info.xml not found");
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57 }
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58 return null;
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59 }
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60
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61 /**
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62 * generate iText-PDF-Contents for the title page
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63 *
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64 * @return
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65 */
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66 public Element getPageContents(){
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67 Paragraph content = new Paragraph();
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68 content.setAlignment(Element.ALIGN_CENTER);
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69
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70 // add vertical whitespace
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71 for(int i=0; i<8; i++){
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72 content.add(Chunk.NEWLINE);
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73 }
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74
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75 // add logo
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76 content.add(getLogo());
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77 content.add(Chunk.NEWLINE);
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78 content.add(Chunk.NEWLINE);
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79
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80 // add title
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81 Anchor title = new Anchor(new Paragraph(getTitle(),FontFactory.getFont(FontFactory.HELVETICA,16)));
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82 String burl = job_info.getImageJobInformation().getAsString("base.url");
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83
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84 title.setReference(burl+"digilib.jsp?fn="+job_info.getImageJobInformation().getAsString("fn"));
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85 content.add(title);
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86 content.add(Chunk.NEWLINE);
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87
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88 // add author
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89 if(getDate()!=" ")
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90 content.add(new Paragraph(getAuthor()+" ("+getDate()+")",FontFactory.getFont(FontFactory.HELVETICA,14)));
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91 else
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92 content.add(new Paragraph(getAuthor(),FontFactory.getFont(FontFactory.HELVETICA,14)));
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93
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94 content.add(Chunk.NEWLINE);
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95
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96 // add page numbers
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97 content.add(new Paragraph(getPages(), FontFactory.getFont(FontFactory.HELVETICA, 12)));
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98
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99
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100 content.add(Chunk.NEWLINE);
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101 content.add(Chunk.NEWLINE);
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102 content.add(Chunk.NEWLINE);
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103
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104 // add digilib version
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105 content.add(new Paragraph(getDigilibVersion(),FontFactory.getFont(FontFactory.HELVETICA,10)));
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106
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107 for(int i=0; i<8; i++){
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108 content.add(Chunk.NEWLINE);
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109 }
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110 Anchor address = new Anchor(
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111 new Paragraph(burl+"digilib.jsp?fn="+job_info.getImageJobInformation().getAsString("fn"), FontFactory.getFont(FontFactory.COURIER, 9))
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112 );
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113 address.setReference(burl+"digilib.jsp?fn="+job_info.getImageJobInformation().getAsString("fn"));
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114
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115 content.add(address);
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116
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117
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118 return content;
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119 }
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120
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121 /*
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122 * Methods for the different attributes.
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123 *
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124 */
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125
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126 private Image getLogo(){
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127 try {
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128 URL url = new URL(job_info.getDlConfig().getAsString("pdf-logo"));
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129 if(url!=null && !url.equals("")){
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130 Image logo = Image.getInstance(url);
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131 logo.setAlignment(Element.ALIGN_CENTER);
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132 return logo;
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133 }
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134 } catch (BadElementException e) {
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135 logger.error(e.getMessage());
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136 } catch (MalformedURLException e) {
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137 logger.error(e.getMessage());
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138 } catch (IOException e) {
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139 logger.error(e.getMessage());
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140 }
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141 return null;
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142 }
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143
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144 private String getTitle(){
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145 if(info_reader.hasInfo())
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146 return info_reader.getAsString("title");
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147 else
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148 return job_info.getImageJobInformation().getAsString("fn");
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149 }
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150
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151 private String getAuthor(){
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152 if(info_reader.hasInfo())
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153 return info_reader.getAsString("author");
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154 else
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155 return " ";
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156 }
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157
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158 private String getDate(){
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159 if(info_reader.hasInfo())
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160 return info_reader.getAsString("date");
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161 else
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162 return " ";
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163 }
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164
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165 private String getPages(){
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166 return "Pages "+job_info.getAsString("pgs") + " (scan page numbers)";
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167 }
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168
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169 private String getDigilibVersion(){
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557
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170 return "Digilib PDFMaker v."+PDFCache.version;
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171 }
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172
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173 }
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