2 * Copyright (C) 2001, 2002 The Mir-coders group
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4 * This file is part of Mir.
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6 * Mir is free software; you can redistribute it and/or modify
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7 * it under the terms of the GNU General Public License as published by
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8 * the Free Software Foundation; either version 2 of the License, or
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9 * (at your option) any later version.
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11 * Mir is distributed in the hope that it will be useful,
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 * GNU General Public License for more details.
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16 * You should have received a copy of the GNU General Public License
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17 * along with Mir; if not, write to the Free Software
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18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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20 * In addition, as a special exception, The Mir-coders gives permission to link
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21 * the code of this program with any library licensed under the Apache Software License,
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22 * The Sun (tm) Java Advanced Imaging library (JAI), The Sun JIMI library
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23 * (or with modified versions of the above that use the same license as the above),
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24 * and distribute linked combinations including the two. You must obey the
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25 * GNU General Public License in all respects for all of the code used other than
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26 * the above mentioned libraries. If you modify this file, you may extend this
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27 * exception to your version of the file, but you are not obligated to do so.
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28 * If you do not wish to do so, delete this exception statement from your version.
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31 package mircoders.producer;
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33 import java.io.PrintWriter;
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34 import java.util.ArrayList;
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35 import java.util.HashMap;
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38 import mir.entity.*;
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39 import mir.entity.EntityList;
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40 import mir.entity.adapter.EntityAdapter;
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41 import mir.log.LoggerToWriterAdapter;
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42 import mir.log.LoggerWrapper;
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43 import mir.misc.StringUtil;
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44 import mir.producer.ProducerFailure;
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45 import mir.producer.ProducerNode;
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46 import mir.util.CachingRewindableIterator;
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47 import mir.util.HTMLRoutines;
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48 import mir.util.ParameterExpander;
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49 import mircoders.entity.EntityContent;
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50 import mircoders.entity.EntityImages;
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51 import mircoders.storage.*;
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54 public class PDFPreFormattingProducerNode implements ProducerNode {
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55 private String contentKey;
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56 private int numLinesBetweenImages;
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57 private float contentAreaWidthCM;
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58 private float characterWidthCM;
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59 private float pixelWidthCM;
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60 private float lineHeightCM;
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62 public PDFPreFormattingProducerNode(String aContentKey,String someNumLinesBetweenImages,String aContentAreaWidthCM,String aCharacterWidthCM,String aPixelWidthCM,String aLineHeightCM) {
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63 contentKey = aContentKey;
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64 numLinesBetweenImages=(new Integer(someNumLinesBetweenImages)).intValue();
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65 contentAreaWidthCM=(new Float(aContentAreaWidthCM)).floatValue();
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66 characterWidthCM=(new Float(aCharacterWidthCM)).floatValue();
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67 pixelWidthCM=(new Float(aPixelWidthCM)).floatValue();
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68 lineHeightCM=(new Float(aLineHeightCM)).floatValue();
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70 // float characterWidthCM = 0.17F;
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71 //float contentAreaWidthCM = 16;
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72 //float pixelWidthCM = .03F;
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73 //float lineHeightCM = .5F;
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76 public void produce(Map aValueMap, String aVerb, LoggerWrapper aLogger) throws ProducerFailure {
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81 data = ParameterExpander.findValueForKey( aValueMap, contentKey );
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83 if (! (data instanceof EntityAdapter)) {
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84 throw new ProducerFailure("PDFPreFormattingProducerNode: value of '"+contentKey+"' is not an EntityAdapter, but an " + data.getClass().getName(), null);
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87 entity = ((EntityAdapter) data).getEntity();
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88 if (! (entity instanceof EntityContent)) {
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89 throw new ProducerFailure("PDFPreFormattingProducerNode: value of '"+contentKey+"' is not a content EntityAdapter, but a " + entity.getClass().getName() + " adapter", null);
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92 int currentPosition = 0;
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94 //int numLinesBetweenImages=3;
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99 int numCharsInAnImagelessRow = (new Float(numLinesBetweenImages * (contentAreaWidthCM/characterWidthCM))).intValue();
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101 boolean outOfText = false;
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103 ArrayList brokenUpContent = new ArrayList();
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105 Iterator images = new EntityBrowser(
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106 DatabaseImages.getInstance(),
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107 "exists (select * from content_x_media where content_id=" + entity.getId() + " and media_id=id)",
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108 "id desc", 30, -1, 0);
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110 String theContent = ((EntityContent) entity).getValue("content_data");
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111 //remove pesky characters
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112 theContent = HTMLRoutines.encodeXML(theContent);
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113 //put in the <BR> tags so we can turn them to empty blocks
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114 theContent = StringUtil.convertNewline2Break(theContent);
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116 if (images == null){
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117 Map row = new HashMap();
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118 row.put("text",theContent);
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119 row.put("hasImage","0");
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120 brokenUpContent.add(row);
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122 if (images != null){
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123 //need to add checks for out of content!
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124 Map row0 = new HashMap();
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125 if (numCharsInAnImagelessRow>(theContent).length()){
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126 row0.put("text",theContent);
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130 //break on words so we don't split html entities
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131 int lastSpaceAt = theContent.lastIndexOf(" ",numCharsInAnImagelessRow);
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132 row0.put("text",theContent.substring(0,lastSpaceAt));
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133 currentPosition=lastSpaceAt;
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135 row0.put("hasImage","0");
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136 brokenUpContent.add(row0);
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137 aLogger.debug("CP1 is "+ currentPosition);
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138 while(images.hasNext()){
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139 Map row1 = new HashMap();
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140 Map row2 = new HashMap();
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141 EntityImages currentImage=(EntityImages) images.next();
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142 float img_width=(new Float(currentImage.getValue("img_width"))).floatValue();
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143 float img_height=(new Float(currentImage.getValue("img_height"))).floatValue();
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145 //oversize images must be shrunk
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146 if (img_width>250){
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147 img_height=(new Float((new Float(img_height*(250.0F/img_width))).intValue())).floatValue();
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152 //calculate how much text goes in the column(use 8 pixels to pad the column)
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153 float text_widthCM = contentAreaWidthCM-((img_width+8)*pixelWidthCM);
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154 float number_of_lines = img_height*pixelWidthCM/lineHeightCM; //don't worry we will make it an int
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155 //add one line for image description
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156 int text_amount= (new Float((text_widthCM/characterWidthCM)*(number_of_lines+1))).intValue();
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158 row1.put("text_widthCM",Float.toString(text_widthCM));
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160 row1.put("img_title",currentImage.getValue("title"));
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162 row1.put("img_width",Float.toString(img_width));
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163 row1.put("img_height",Float.toString(img_height));
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165 aLogger.debug("img_width " +Float.toString(img_width));
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166 aLogger.debug("img_height "+Float.toString(img_height));
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168 row1.put("img_src",currentImage.getValue("publish_path"));
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169 row1.put("hasImage","1");
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172 int lastSpaceAt = theContent.lastIndexOf(" ",currentPosition+text_amount);
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173 row1.put("text",theContent.substring(currentPosition,lastSpaceAt));
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174 currentPosition=lastSpaceAt;
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176 catch (IndexOutOfBoundsException e){
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177 row1.put("text",theContent.substring(currentPosition));
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181 aLogger.debug("CP2 is "+ currentPosition);
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182 brokenUpContent.add(row1);
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186 int lastSpaceAt = theContent.lastIndexOf(" ",currentPosition+numCharsInAnImagelessRow);
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187 row2.put("text",theContent.substring(currentPosition,lastSpaceAt));
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188 currentPosition=lastSpaceAt;
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190 catch (IndexOutOfBoundsException e){
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191 row2.put("text",theContent.substring(currentPosition));
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195 row2.put("hasImage","0");
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196 brokenUpContent.add(row2);
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198 aLogger.debug("CP3 is "+ currentPosition);
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200 Map row3 = new HashMap();
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202 row3.put("text",theContent.substring(currentPosition));
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203 row3.put("hasImage","0");
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204 brokenUpContent.add(row3);
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213 ParameterExpander.setValueForKey(
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215 "data.formatted_content",
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216 new CachingRewindableIterator(brokenUpContent.iterator())
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221 catch (Throwable t) {
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222 aLogger.error("Error while formatting content for PDF: " + t.getMessage());
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223 t.printStackTrace(new PrintWriter(new LoggerToWriterAdapter(aLogger, LoggerWrapper.DEBUG_MESSAGE)));
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