Mercurial > hg > digilib-old

annotate servlet/src/digilib/image/ImageJobDescription.java @ 774:4568e539abd2 stream

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merge from jquery branch 19754e80cc9fb019a073b61891415233b4ef591a
author robcast
date Fri, 11 Feb 2011 10:12:41 +0100
parents 5d3f74f378dd 4b686a0d44f7
children a23c4c15a6a8
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1 package digilib.image;
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2
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3 import java.awt.geom.AffineTransform;
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4 import java.awt.geom.Rectangle2D;
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5 import java.io.IOException;
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6
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7 import org.apache.log4j.Logger;
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8
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9 import digilib.io.DocuDirCache;
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10 import digilib.io.DocuDirectory;
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11 import digilib.io.FileOpException;
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12 import digilib.io.FileOps;
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13 import digilib.io.FileOps.FileClass;
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14 import digilib.io.ImageInput;
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15 import digilib.io.ImageSet;
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16 import digilib.servlet.DigilibConfiguration;
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17 import digilib.util.ImageSize;
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18 import digilib.util.OptionsSet;
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19 import digilib.util.Parameter;
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20 import digilib.util.ParameterMap;
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21
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22 /**
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23 * A class for storing the set of parameters necessary for scaling images
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24 * with an ImageWorker.
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25 *
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26 * This contains the functionality formerly found in Scaler.processRequest(),
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27 * only factorized.
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28 *
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29 * @author cmielack, casties
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30 *
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31 */
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32
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33 public class ImageJobDescription extends ParameterMap {
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34
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35 DigilibConfiguration dlConfig = null;
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36 protected static Logger logger = Logger.getLogger("digilib.servlet");
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37
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38 ImageInput input = null;
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39 ImageSet imageSet = null;
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40 DocuDirectory fileDir = null;
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41 String filePath = null;
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42 ImageSize expectedSourceSize = null;
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43 Float scaleXY = null;
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44 Rectangle2D userImgArea = null;
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45 Rectangle2D outerUserImgArea = null;
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46 Boolean imageSendable = null;
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47 String mimeType = null;
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48 Integer paramDW = null;
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49 Integer paramDH = null;
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50
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51 /** create empty ImageJobDescription.
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52 * @param dlcfg
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53 */
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54 public ImageJobDescription(DigilibConfiguration dlcfg) {
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55 super(30);
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56 dlConfig = dlcfg;
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57 }
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58
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59
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60 /** set up Parameters
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61 * @see digilib.util.ParameterMap#initParams()
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62 */
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63 @Override
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64 protected void initParams() {
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65 // url of the page/document (second part)
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66 newParameter("fn", "", null, 's');
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67 // page number
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68 newParameter("pn", new Integer(1), null, 's');
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69 // width of client in pixels
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70 newParameter("dw", new Integer(0), null, 's');
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71 // height of client in pixels
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72 newParameter("dh", new Integer(0), null, 's');
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73 // left edge of image (float from 0 to 1)
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74 newParameter("wx", new Float(0), null, 's');
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75 // top edge in image (float from 0 to 1)
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76 newParameter("wy", new Float(0), null, 's');
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77 // width of image (float from 0 to 1)
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78 newParameter("ww", new Float(1), null, 's');
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79 // height of image (float from 0 to 1)
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80 newParameter("wh", new Float(1), null, 's');
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81 // scale factor
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82 newParameter("ws", new Float(1), null, 's');
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83 // special options like 'fit' for gifs
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84 newParameter("mo", this.options, null, 's');
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85 // rotation angle (degree)
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86 newParameter("rot", new Float(0), null, 's');
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87 // contrast enhancement factor
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88 newParameter("cont", new Float(0), null, 's');
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89 // brightness enhancement factor
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90 newParameter("brgt", new Float(0), null, 's');
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91 // color multiplicative factors
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92 newParameter("rgbm", "0/0/0", null, 's');
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93 // color additive factors
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94 newParameter("rgba", "0/0/0", null, 's');
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95 // display dpi resolution (total)
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96 newParameter("ddpi", new Float(0), null, 's');
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97 // display dpi X resolution
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98 newParameter("ddpix", new Float(0), null, 's');
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99 // display dpi Y resolution
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100 newParameter("ddpiy", new Float(0), null, 's');
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101 // scale factor for mo=ascale
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102 newParameter("scale", new Float(1), null, 's');
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103 }
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104
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105
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106 /* (non-Javadoc)
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107 * @see digilib.servlet.ParameterMap#initOptions()
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108 */
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109 @Override
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110 protected void initOptions() {
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111 String s = this.getAsString("mo");
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112 options = new OptionsSet(s);
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113 }
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114
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115
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116 /** Creates new ImageJobDescription by merging Parameters from another ParameterMap.
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117 * @param pm
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118 * @param dlcfg
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119 * @return
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120 */
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121 public static ImageJobDescription getInstance(ParameterMap pm, DigilibConfiguration dlcfg) {
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122 ImageJobDescription newMap = new ImageJobDescription(dlcfg);
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123 // add all params to this map
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124 newMap.params.putAll(pm.getParams());
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125 newMap.initOptions();
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126 return newMap;
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127 }
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128
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129
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130 /** Returns the mime-type (of the input).
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131 * @return
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132 * @throws IOException
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133 */
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134 public String getMimeType() throws IOException {
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135 if (mimeType == null) {
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136 input = getInput();
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137 mimeType = input.getMimetype();
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138 }
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139 return mimeType;
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140 }
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141
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142 /** Returns the ImageInput to use.
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143 * @return
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144 * @throws IOException
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145 */
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146 public ImageInput getInput() throws IOException {
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147 if(input == null){
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148 imageSet = getImageSet();
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149
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150 /* select a resolution */
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151 if (isHiresOnly()) {
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152 // get first element (= highest resolution)
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153 input = imageSet.getBiggest();
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154 } else if (isLoresOnly()) {
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155 // enforced lores uses next smaller resolution
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156 input = imageSet.getNextSmaller(getExpectedSourceSize());
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157 if (input == null) {
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158 // this is the smallest we have
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159 input = imageSet.getSmallest();
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160 }
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161 } else {
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162 // autores: use next higher resolution
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163 input = imageSet.getNextBigger(getExpectedSourceSize());
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164 if (input == null) {
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165 // this is the highest we have
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166 input = imageSet.getBiggest();
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167 }
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168 }
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169 logger.info("Planning to load: " + input);
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170 }
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171
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172 return input;
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173
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174 }
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175
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176 /** Returns the DocuDirectory for the input (file).
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177 * @return
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178 * @throws FileOpException
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179 */
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180 public DocuDirectory getFileDirectory() throws FileOpException {
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181 if(fileDir == null){
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182 DocuDirCache dirCache = (DocuDirCache) dlConfig.getValue("servlet.dir.cache");
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183 String fp = getFilePath();
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184 fileDir = dirCache.getDirectory(fp);
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185 if (fileDir == null) {
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186 throw new FileOpException("Directory " + getFilePath() + " not found.");
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187 }
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188 }
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189 return fileDir;
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190 }
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191
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192 /** Returns the ImageSet to load.
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193 * @return
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194 * @throws FileOpException
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195 */
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196 public ImageSet getImageSet() throws FileOpException {
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197 if(imageSet==null){
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198 DocuDirCache dirCache = (DocuDirCache) dlConfig.getValue("servlet.dir.cache");
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199
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200 imageSet = (ImageSet) dirCache.getFile(getFilePath(), getAsInt("pn"), FileClass.IMAGE);
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201 if (imageSet == null) {
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202 throw new FileOpException("File " + getFilePath() + "("
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203 + getAsInt("pn") + ") not found.");
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204 }
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205 }
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206 return imageSet;
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207 }
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208
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209 /** Returns the file path name from the request.
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210 * @return
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211 */
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212 public String getFilePath() {
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213 if(filePath == null){
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214 String s = this.getAsString("request.path");
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215 s += this.getAsString("fn");
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216 filePath = FileOps.normalName(s);
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217 }
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218 return filePath;
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219 }
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220
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221 public boolean isHiresOnly(){
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222 return hasOption("clip") || hasOption("hires");
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223 }
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224
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225 public boolean isLoresOnly(){
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226 return hasOption("lores");
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227 }
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228
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229 public boolean isScaleToFit() {
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230 return !(hasOption("clip") || hasOption("osize") || hasOption("ascale"));
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231 }
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232
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233 public boolean isAbsoluteScale(){
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234 return hasOption("osize") || hasOption("ascale");
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235 }
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236
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237
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238 /** Returns the minimum size the source image should have for scaling.
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239 * @return
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240 * @throws IOException
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241 */
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242 public ImageSize getExpectedSourceSize() throws IOException {
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243 if (expectedSourceSize == null){
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244 expectedSourceSize = new ImageSize();
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245 if (isScaleToFit()) {
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246 // scale to fit -- calculate minimum source size
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247 float scale = (1 / Math.min(getAsFloat("ww"), getAsFloat("wh"))) * getAsFloat("ws");
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248 expectedSourceSize.setSize((int) (getDw() * scale),
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249 (int) (getDh() * scale));
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250 } else if (isAbsoluteScale() && hasOption("ascale")) {
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251 // absolute scale -- apply scale to hires size
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252 expectedSourceSize = getHiresSize().getScaled(getAsFloat("scale"));
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253 } else {
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254 // clip to fit -- source = destination size
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255 expectedSourceSize.setSize((int) (getDw() * getAsFloat("ws")),
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256 (int) (getDh() * getAsFloat("ws")));
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257 }
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258 }
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259 return expectedSourceSize;
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260 }
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261
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262 /** Returns the size of the highest resolution image.
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263 * @return
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264 * @throws IOException
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265 */
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266 public ImageSize getHiresSize() throws IOException {
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267 logger.debug("get_hiresSize()");
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268
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269 ImageSize hiresSize = null;
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270 ImageSet fileset = getImageSet();
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271 if (isAbsoluteScale()) {
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272 ImageInput hiresFile = fileset.getBiggest();
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273 hiresSize = hiresFile.getSize();
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274 }
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275 return hiresSize;
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276 }
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277
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278 /** Returns image scaling factor.
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279 * Uses image size and user parameters.
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280 * Modifies scaleXY, userImgArea.
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281 * @return
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282 * @throws IOException
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283 * @throws ImageOpException
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284 */
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285 public float getScaleXY() throws IOException, ImageOpException {
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286 //logger.debug("get_scaleXY()");
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287 if(scaleXY == null){
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288 // coordinates and scaling
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289 float areaWidth;
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290 float areaHeight;
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291 float ws = getAsFloat("ws");
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292 ImageSize imgSize = getInput().getSize();
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293 // user window area in [0,1] coordinates
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294 Rectangle2D relUserArea = new Rectangle2D.Float(getAsFloat("wx"), getAsFloat("wy"),
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295 getAsFloat("ww"), getAsFloat("wh"));
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296 // transform from relative [0,1] to image coordinates.
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297 AffineTransform imgTrafo = AffineTransform.getScaleInstance(imgSize
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298 .getWidth(), imgSize.getHeight());
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299 // transform user coordinate area to image coordinate area
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300 userImgArea = imgTrafo.createTransformedShape(
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301 relUserArea).getBounds2D();
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302
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303 if (isScaleToFit()) {
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304 // calculate scaling factors based on inner user area
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305 areaWidth = (float) userImgArea.getWidth();
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306 areaHeight = (float) userImgArea.getHeight();
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307 float scaleX = getDw() / areaWidth * ws;
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308 float scaleY = getDh() / areaHeight * ws;
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309 scaleXY = (scaleX > scaleY) ? scaleY : scaleX;
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310 } else if (isAbsoluteScale()) {
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311 // absolute scaling factor
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312 if (hasOption("osize")) {
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313 // get original resolution from metadata
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314 imageSet.checkMeta();
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315 float origResX = imageSet.getResX();
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316 float origResY = imageSet.getResY();
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317 if ((origResX == 0) || (origResY == 0)) {
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318 throw new ImageOpException("Missing image DPI information!");
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319 }
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320 float ddpix = getAsFloat("ddpix");
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321 float ddpiy = getAsFloat("ddpiy");
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322 if (ddpix == 0 || ddpiy == 0) {
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323 float ddpi = getAsFloat("ddpi");
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324 if (ddpi == 0) {
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325 throw new ImageOpException("Missing display DPI information!");
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326 } else {
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327 ddpix = ddpi;
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328 ddpiy = ddpi;
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329 }
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330 }
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331 // calculate absolute scale factor
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332 float sx = ddpix / origResX;
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333 float sy = ddpiy / origResY;
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334 // currently only same scale -- mean value
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335 scaleXY = (sx + sy) / 2f;
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336 } else {
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337 scaleXY = getAsFloat("scale");
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338 }
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339 // we need to correct the factor if we use a pre-scaled image
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340 ImageSize hiresSize = getHiresSize();
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341 if (imgSize.getWidth() != hiresSize.getWidth()) {
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342 scaleXY *= (float)hiresSize.getWidth() / (float)imgSize.getWidth();
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343 }
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344 areaWidth = getDw() / scaleXY * ws;
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345 areaHeight = getDh() / scaleXY * ws;
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346 // reset user area size
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347 userImgArea.setRect(userImgArea.getX(), userImgArea.getY(),
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348 areaWidth, areaHeight);
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349 } else {
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350 // crop to fit -- don't scale
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351 areaWidth = getDw() * ws;
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352 areaHeight = getDh() * ws;
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353 // reset user area size
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354 userImgArea.setRect(userImgArea.getX(), userImgArea.getY(),
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355 areaWidth, areaHeight);
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356 scaleXY = 1f;
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357 }
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358 }
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359 return (float) scaleXY;
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360 }
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361
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362 /** Returns the width of the destination image.
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363 * Uses dh parameter and aspect ratio if dw parameter is empty.
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364 * @return
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365 * @throws IOException
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366 */
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367 public int getDw() throws IOException {
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368 logger.debug("get_paramDW()");
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369 if (paramDW == null) {
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370
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371 paramDW = getAsInt("dw");
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372 paramDH = getAsInt("dh");
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373
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374 float imgAspect = getInput().getAspect();
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375 if (paramDW == 0) {
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376 // calculate dw
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377 paramDW = Math.round(paramDH * imgAspect);
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378 setValue("dw", paramDW);
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379 } else if (paramDH == 0) {
547
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380 // calculate dh
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381 paramDH = Math.round(paramDW / imgAspect);
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diff changeset
382 setValue("dh", paramDH);
500
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383 }
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parents:
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384 }
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385 return paramDW;
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parents:
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386 }
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parents:
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387
593
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388 /** Returns the height of the destination image.
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389 * Uses dw parameter and aspect ratio if dh parameter is empty.
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diff changeset
390 * @return
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391 * @throws IOException
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392 */
547
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diff changeset
393 public int getDh() throws IOException {
500
b2325b33b77b completely restructured the scaler
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parents:
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394 logger.debug("get_paramDH()");
547
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parents: 542
diff changeset
395 if (paramDH == null) {
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396
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diff changeset
397 paramDW = getAsInt("dw");
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diff changeset
398 paramDH = getAsInt("dh");
500
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parents:
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399
593
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diff changeset
400 float imgAspect = getInput().getAspect();
500
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cmielack
parents:
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401 if (paramDW == 0) {
547
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parents: 542
diff changeset
402 // calculate dw
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parents: 542
diff changeset
403 paramDW = Math.round(paramDH * imgAspect);
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parents: 542
diff changeset
404 setValue("dw", paramDW);
500
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parents:
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405 } else if (paramDH == 0) {
547
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parents: 542
diff changeset
406 // calculate dh
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diff changeset
407 paramDH = Math.round(paramDW / imgAspect);
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diff changeset
408 setValue("dh", paramDH);
500
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parents:
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409 }
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parents:
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410 }
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parents:
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411 return paramDH;
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parents:
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412 }
547
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parents: 542
diff changeset
413
593
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diff changeset
414 /** Returns image quality as an integer.
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415 * @return
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416 */
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diff changeset
417 public int getScaleQual(){
500
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418 logger.debug("get_scaleQual()");
593
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diff changeset
419 int qual = dlConfig.getAsInt("default-quality");
547
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diff changeset
420 if(hasOption("q0"))
500
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parents:
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421 qual = 0;
547
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parents: 542
diff changeset
422 else if(hasOption("q1"))
500
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parents:
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423 qual = 1;
547
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parents: 542
diff changeset
424 else if(hasOption("q2"))
500
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cmielack
parents:
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425 qual = 2;
b2325b33b77b completely restructured the scaler
cmielack
parents:
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426 return qual;
b2325b33b77b completely restructured the scaler
cmielack
parents:
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427 }
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
428
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
429
593
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parents: 589
diff changeset
430 /**
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parents: 589
diff changeset
431 * Returns the area of the source image that will be transformed into the
7768ea8f59cf more work on stream input -- cleaning up references to files
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parents: 589
diff changeset
432 * destination image.
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parents: 589
diff changeset
433 *
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parents: 589
diff changeset
434 * @return
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parents: 589
diff changeset
435 * @throws IOException
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parents: 589
diff changeset
436 * @throws ImageOpException
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diff changeset
437 */
547
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parents: 542
diff changeset
438 public Rectangle2D getUserImgArea() throws IOException, ImageOpException{
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parents: 542
diff changeset
439 if(userImgArea == null) {
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parents: 542
diff changeset
440 // getScaleXY sets userImgArea
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parents: 542
diff changeset
441 getScaleXY();
500
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cmielack
parents:
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442 }
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
443 return userImgArea;
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
444 }
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
445
593
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parents: 589
diff changeset
446 /** Returns the maximal area of the source image that will be used.
7768ea8f59cf more work on stream input -- cleaning up references to files
robcast
parents: 589
diff changeset
447 * @return
7768ea8f59cf more work on stream input -- cleaning up references to files
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parents: 589
diff changeset
448 * @throws IOException
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parents: 589
diff changeset
449 * @throws ImageOpException
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diff changeset
450 */
547
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parents: 542
diff changeset
451 public Rectangle2D getOuterUserImgArea() throws IOException, ImageOpException {
500
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
452 if(outerUserImgArea == null){
547
e1094c5ec032 more cleanup and refactoring
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parents: 542
diff changeset
453 outerUserImgArea = getUserImgArea();
500
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
454
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
455 // image size in pixels
593
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parents: 589
diff changeset
456 ImageSize imgSize = getInput().getSize();
547
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parents: 542
diff changeset
457 Rectangle2D imgBounds = new Rectangle2D.Float(0, 0, imgSize.getWidth(),
e1094c5ec032 more cleanup and refactoring
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parents: 542
diff changeset
458 imgSize.getHeight());
500
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
459
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
460 // clip area at the image border
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
461 outerUserImgArea = outerUserImgArea.createIntersection(imgBounds);
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
462
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
463 // check image parameters sanity
547
e1094c5ec032 more cleanup and refactoring
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parents: 542
diff changeset
464 scaleXY = getScaleXY();
500
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
465 logger.debug("outerUserImgArea.getWidth()=" + outerUserImgArea.getWidth());
547
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parents: 542
diff changeset
466 logger.debug("get_scaleXY() * outerUserImgArea.getWidth() = " + (scaleXY * outerUserImgArea.getWidth()));
500
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
467
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
468 if ((outerUserImgArea.getWidth() < 1)
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
469 || (outerUserImgArea.getHeight() < 1)
547
e1094c5ec032 more cleanup and refactoring
robcast
parents: 542
diff changeset
470 || (scaleXY * outerUserImgArea.getWidth() < 2)
e1094c5ec032 more cleanup and refactoring
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parents: 542
diff changeset
471 || (scaleXY * outerUserImgArea.getHeight() < 2)) {
500
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
472 logger.error("ERROR: invalid scale parameter set!");
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
473 throw new ImageOpException("Invalid scale parameter set!");
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
474 }
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
475 }
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
476 return outerUserImgArea;
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
477 }
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
478
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
479
547
e1094c5ec032 more cleanup and refactoring
robcast
parents: 542
diff changeset
480 public float[] getRGBM(){
502
157d4c7d2343 readded support for direct sending of image files
cmielack
parents: 500
diff changeset
481 float[] paramRGBM = null;//{0f,0f,0f};
547
e1094c5ec032 more cleanup and refactoring
robcast
parents: 542
diff changeset
482 Parameter p = params.get("rgbm");
500
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
483 if (p.hasValue() && (!p.getAsString().equals("0/0/0"))) {
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
484 return p.parseAsFloatArray("/");
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
485 }
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
486 return paramRGBM;
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
487 }
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
488
547
e1094c5ec032 more cleanup and refactoring
robcast
parents: 542
diff changeset
489 public float[] getRGBA(){
502
157d4c7d2343 readded support for direct sending of image files
cmielack
parents: 500
diff changeset
490 float[] paramRGBA = null;//{0f,0f,0f};
547
e1094c5ec032 more cleanup and refactoring
robcast
parents: 542
diff changeset
491 Parameter p = params.get("rgba");
500
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
492 if (p.hasValue() && (!p.getAsString().equals("0/0/0"))) {
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
493 paramRGBA = p.parseAsFloatArray("/");
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
494 }
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
495 return paramRGBA;
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
496 }
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
497
547
e1094c5ec032 more cleanup and refactoring
robcast
parents: 542
diff changeset
498 /** Has send-as-file been requested?
e1094c5ec032 more cleanup and refactoring
robcast
parents: 542
diff changeset
499 * @return
e1094c5ec032 more cleanup and refactoring
robcast
parents: 542
diff changeset
500 */
e1094c5ec032 more cleanup and refactoring
robcast
parents: 542
diff changeset
501 public boolean getSendAsFile(){
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robcast
parents: 542
diff changeset
502 return hasOption("file")
e1094c5ec032 more cleanup and refactoring
robcast
parents: 542
diff changeset
503 || hasOption("rawfile");
500
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
504 }
502
157d4c7d2343 readded support for direct sending of image files
cmielack
parents: 500
diff changeset
505
593
7768ea8f59cf more work on stream input -- cleaning up references to files
robcast
parents: 589
diff changeset
506 /**
7768ea8f59cf more work on stream input -- cleaning up references to files
robcast
parents: 589
diff changeset
507 * Returns if the image can be sent without processing. Takes image type and
7768ea8f59cf more work on stream input -- cleaning up references to files
robcast
parents: 589
diff changeset
508 * additional image operations into account. Does not check requested size
7768ea8f59cf more work on stream input -- cleaning up references to files
robcast
parents: 589
diff changeset
509 * transformation.
7768ea8f59cf more work on stream input -- cleaning up references to files
robcast
parents: 589
diff changeset
510 *
547
e1094c5ec032 more cleanup and refactoring
robcast
parents: 542
diff changeset
511 * @return
593
7768ea8f59cf more work on stream input -- cleaning up references to files
robcast
parents: 589
diff changeset
512 * @throws IOException
547
e1094c5ec032 more cleanup and refactoring
robcast
parents: 542
diff changeset
513 */
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parents: 542
diff changeset
514 public boolean isImageSendable() throws IOException {
e1094c5ec032 more cleanup and refactoring
robcast
parents: 542
diff changeset
515 // cached result?
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robcast
parents: 542
diff changeset
516 if (imageSendable == null) {
e1094c5ec032 more cleanup and refactoring
robcast
parents: 542
diff changeset
517 String mimeType = getMimeType();
502
157d4c7d2343 readded support for direct sending of image files
cmielack
parents: 500
diff changeset
518 imageSendable = ( (mimeType.equals("image/jpeg")
157d4c7d2343 readded support for direct sending of image files
cmielack
parents: 500
diff changeset
519 || mimeType.equals("image/png")
157d4c7d2343 readded support for direct sending of image files
cmielack
parents: 500
diff changeset
520 || mimeType.equals("image/gif") )
157d4c7d2343 readded support for direct sending of image files
cmielack
parents: 500
diff changeset
521 &&
547
e1094c5ec032 more cleanup and refactoring
robcast
parents: 542
diff changeset
522 !(hasOption("hmir")
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robcast
parents: 542
diff changeset
523 || hasOption("vmir")
e1094c5ec032 more cleanup and refactoring
robcast
parents: 542
diff changeset
524 || (getAsFloat("rot") != 0.0)
e1094c5ec032 more cleanup and refactoring
robcast
parents: 542
diff changeset
525 || (getRGBM() != null)
e1094c5ec032 more cleanup and refactoring
robcast
parents: 542
diff changeset
526 || (getRGBA() != null)
e1094c5ec032 more cleanup and refactoring
robcast
parents: 542
diff changeset
527 || (getAsFloat("cont") != 0.0)
e1094c5ec032 more cleanup and refactoring
robcast
parents: 542
diff changeset
528 || (getAsFloat("brgt") != 0.0)));
502
157d4c7d2343 readded support for direct sending of image files
cmielack
parents: 500
diff changeset
529 }
157d4c7d2343 readded support for direct sending of image files
cmielack
parents: 500
diff changeset
530
157d4c7d2343 readded support for direct sending of image files
cmielack
parents: 500
diff changeset
531 return imageSendable;
157d4c7d2343 readded support for direct sending of image files
cmielack
parents: 500
diff changeset
532 }
157d4c7d2343 readded support for direct sending of image files
cmielack
parents: 500
diff changeset
533
157d4c7d2343 readded support for direct sending of image files
cmielack
parents: 500
diff changeset
534
593
7768ea8f59cf more work on stream input -- cleaning up references to files
robcast
parents: 589
diff changeset
535 /**
7768ea8f59cf more work on stream input -- cleaning up references to files
robcast
parents: 589
diff changeset
536 * Returns if any transformation of the source image (image manipulation or
7768ea8f59cf more work on stream input -- cleaning up references to files
robcast
parents: 589
diff changeset
537 * format conversion) is required.
7768ea8f59cf more work on stream input -- cleaning up references to files
robcast
parents: 589
diff changeset
538 *
7768ea8f59cf more work on stream input -- cleaning up references to files
robcast
parents: 589
diff changeset
539 * @return
7768ea8f59cf more work on stream input -- cleaning up references to files
robcast
parents: 589
diff changeset
540 * @throws IOException
7768ea8f59cf more work on stream input -- cleaning up references to files
robcast
parents: 589
diff changeset
541 */
547
e1094c5ec032 more cleanup and refactoring
robcast
parents: 542
diff changeset
542 public boolean isTransformRequired() throws IOException {
593
7768ea8f59cf more work on stream input -- cleaning up references to files
robcast
parents: 589
diff changeset
543 ImageSize is = getInput().getSize();
547
e1094c5ec032 more cleanup and refactoring
robcast
parents: 542
diff changeset
544 ImageSize ess = getExpectedSourceSize();
e1094c5ec032 more cleanup and refactoring
robcast
parents: 542
diff changeset
545 // nt = no transform required
e1094c5ec032 more cleanup and refactoring
robcast
parents: 542
diff changeset
546 boolean nt = isImageSendable() && (
e1094c5ec032 more cleanup and refactoring
robcast
parents: 542
diff changeset
547 // lores: send if smaller
593
7768ea8f59cf more work on stream input -- cleaning up references to files
robcast
parents: 589
diff changeset
548 (isLoresOnly() && is.isSmallerThan(ess))
547
e1094c5ec032 more cleanup and refactoring
robcast
parents: 542
diff changeset
549 // else send if it fits
593
7768ea8f59cf more work on stream input -- cleaning up references to files
robcast
parents: 589
diff changeset
550 || (!(isLoresOnly() || isHiresOnly()) && is.fitsIn(ess)));
547
e1094c5ec032 more cleanup and refactoring
robcast
parents: 542
diff changeset
551 return ! nt;
502
157d4c7d2343 readded support for direct sending of image files
cmielack
parents: 500
diff changeset
552 }
500
b2325b33b77b completely restructured the scaler
cmielack
parents:
diff changeset
553 }