1 | package fr.mael.jiwigo.transverse; |
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2 | |
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3 | import java.awt.image.BufferedImage; |
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4 | import java.io.IOException; |
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5 | import java.net.URL; |
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6 | import java.util.HashMap; |
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7 | import java.util.List; |
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8 | |
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9 | import javax.imageio.ImageIO; |
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10 | |
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11 | import fr.mael.jiwigo.om.Image; |
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12 | import fr.mael.jiwigo.transverse.exception.ProxyAuthenticationException; |
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13 | import fr.mael.jiwigo.transverse.util.Tools; |
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14 | import fr.mael.jiwigo.transverse.util.spring.SpringUtils; |
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15 | |
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16 | /** |
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17 | Copyright (c) 2010, Mael |
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18 | All rights reserved. |
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19 | |
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20 | Redistribution and use in source and binary forms, with or without |
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21 | modification, are permitted provided that the following conditions are met: |
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22 | * Redistributions of source code must retain the above copyright |
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23 | notice, this list of conditions and the following disclaimer. |
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24 | * Redistributions in binary form must reproduce the above copyright |
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25 | notice, this list of conditions and the following disclaimer in the |
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26 | documentation and/or other materials provided with the distribution. |
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27 | * Neither the name of jiwigo nor the |
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28 | names of its contributors may be used to endorse or promote products |
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29 | derived from this software without specific prior written permission. |
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30 | |
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31 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
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32 | ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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33 | WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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34 | DISCLAIMED. IN NO EVENT SHALL Mael BE LIABLE FOR ANY |
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35 | DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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36 | (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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37 | LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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38 | ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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39 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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40 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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41 | |
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42 | * @author mael |
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43 | * Management of the real sized pictures |
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44 | */ |
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45 | public class ImagesManagement { |
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46 | /** |
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47 | * Logger |
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48 | */ |
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49 | public static final org.apache.commons.logging.Log LOG = org.apache.commons.logging.LogFactory |
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50 | .getLog(ImagesManagement.class); |
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51 | /** |
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52 | * the index of the current image |
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53 | */ |
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54 | private int currentImageIndex; |
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55 | /** |
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56 | * the current image |
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57 | */ |
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58 | private Image currentImage; |
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59 | /** |
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60 | * images list |
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61 | */ |
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62 | private List<Image> listImage; |
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63 | |
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64 | /** |
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65 | * cache allows to keep the images in the ram |
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66 | */ |
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67 | private HashMap<Integer, BufferedImage> imageCache = new HashMap<Integer, BufferedImage>(); |
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68 | |
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69 | /** |
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70 | * cache allows to keep the thumbnails in the ram |
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71 | */ |
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72 | private HashMap<Integer, BufferedImage> thumbnailsCache = new HashMap<Integer, BufferedImage>(); |
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73 | |
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74 | /** |
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75 | * If true : the application won't ask the privacy level |
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76 | * to the user each time he adds pictures |
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77 | */ |
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78 | private boolean rememberPrivacyLevel = false; |
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79 | |
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80 | /** |
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81 | * if true : the user is currently uploading pictures |
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82 | */ |
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83 | private boolean isUploading = false; |
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84 | /** |
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85 | * the privacy level to apply to the pictures |
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86 | */ |
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87 | private int privacyLevel = 1; |
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88 | /** |
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89 | * boolean that defines if the application is sending files |
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90 | * |
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91 | */ |
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92 | private boolean sendingFiles = false; |
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93 | |
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94 | /** |
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95 | * integer that contains the current category of the browser |
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96 | * it allows to empty the list of images if the category changes |
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97 | */ |
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98 | private Integer currentCategory = -1; |
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99 | |
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100 | /** |
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101 | * singleton |
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102 | */ |
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103 | private static ImagesManagement instance; |
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104 | |
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105 | private ImagesManagement() { |
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106 | } |
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107 | |
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108 | public static ImagesManagement getInstance() { |
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109 | if (instance == null) { |
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110 | instance = new ImagesManagement(); |
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111 | } |
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112 | return instance; |
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113 | } |
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114 | |
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115 | /** |
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116 | * gets the current image |
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117 | * @return the image |
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118 | */ |
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119 | public Image getCurrentImage() { |
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120 | //return LIST_IMAGE.get(CURRENT_IMAGE_INDEX); |
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121 | return currentImage; |
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122 | } |
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123 | |
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124 | /** |
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125 | * next image |
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126 | */ |
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127 | public void next() { |
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128 | if (currentImageIndex != listImage.size() - 1) { |
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129 | currentImageIndex++; |
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130 | } else { |
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131 | currentImageIndex = 0; |
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132 | } |
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133 | currentImage = listImage.get(currentImageIndex); |
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134 | } |
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135 | |
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136 | /** |
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137 | * previous image |
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138 | */ |
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139 | public void previous() { |
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140 | if (currentImageIndex != 0) { |
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141 | currentImageIndex--; |
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142 | } else { |
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143 | currentImageIndex = listImage.size() - 1; |
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144 | } |
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145 | currentImage = listImage.get(currentImageIndex); |
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146 | } |
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147 | |
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148 | /** |
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149 | * |
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150 | * @param image the current image |
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151 | */ |
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152 | public void setCurrentImage(Image image) { |
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153 | if (!image.getIdCategory().equals(currentCategory)) { |
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154 | try { |
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155 | listImage = SpringUtils.getImageService().listByCategory(image.getIdCategory(), true); |
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156 | currentCategory = image.getIdCategory(); |
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157 | } catch (IOException e) { |
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158 | LOG.error(Tools.getStackTrace(e)); |
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159 | } catch (ProxyAuthenticationException e) { |
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160 | LOG.error(Tools.getStackTrace(e)); |
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161 | } |
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162 | } |
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163 | currentImage = image; |
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164 | int compteur = 0; |
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165 | for (Image im : listImage) { |
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166 | if (im.getIdentifier().equals(image.getIdentifier())) { |
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167 | currentImageIndex = compteur; |
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168 | return; |
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169 | } |
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170 | compteur++; |
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171 | } |
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172 | } |
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173 | |
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174 | /** |
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175 | * Function that allows to load images once |
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176 | * to decrease response delays |
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177 | * @return the image |
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178 | */ |
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179 | public BufferedImage getCurrentBufferedImage() { |
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180 | if (imageCache.get(currentImage.getIdentifier()) == null) { |
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181 | try { |
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182 | BufferedImage img = ImageIO.read(new URL(currentImage.getUrl())); |
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183 | imageCache.put(currentImage.getIdentifier(), img); |
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184 | } catch (Exception e) { |
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185 | LOG.error(Tools.getStackTrace(e)); |
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186 | } |
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187 | } |
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188 | return imageCache.get(currentImage.getIdentifier()); |
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189 | } |
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190 | |
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191 | /** |
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192 | * Function that allows to load thimbnails once |
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193 | * to decrease response delays |
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194 | * @return the image |
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195 | */ |
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196 | public BufferedImage getMiniatureBufferedImage(Image image) { |
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197 | if (thumbnailsCache.get(image.getIdentifier()) == null) { |
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198 | try { |
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199 | BufferedImage img = ImageIO.read(new URL(image.getThumbnailUrl())); |
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200 | thumbnailsCache.put(image.getIdentifier(), img); |
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201 | } catch (Exception e) { |
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202 | LOG.error(Tools.getStackTrace(e)); |
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203 | } |
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204 | } |
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205 | |
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206 | return thumbnailsCache.get(image.getIdentifier()); |
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207 | } |
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208 | |
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209 | /** |
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210 | * @return the listImage |
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211 | */ |
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212 | public List<Image> getListImage() { |
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213 | return listImage; |
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214 | } |
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215 | |
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216 | /** |
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217 | * @param listImage the listImage to set |
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218 | */ |
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219 | public void setListImage(List<Image> listImage) { |
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220 | this.listImage = listImage; |
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221 | } |
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222 | |
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223 | /** |
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224 | * @return the rememberPrivacyLevel |
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225 | */ |
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226 | public boolean isRememberPrivacyLevel() { |
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227 | return rememberPrivacyLevel; |
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228 | } |
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229 | |
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230 | /** |
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231 | * @param rememberPrivacyLevel the rememberPrivacyLevel to set |
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232 | */ |
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233 | public void setRememberPrivacyLevel(boolean rememberPrivacyLevel) { |
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234 | this.rememberPrivacyLevel = rememberPrivacyLevel; |
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235 | } |
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236 | |
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237 | /** |
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238 | * @return the sendingFiles |
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239 | */ |
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240 | public boolean isSendingFiles() { |
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241 | return sendingFiles; |
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242 | } |
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243 | |
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244 | /** |
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245 | * @param sendingFiles the sendingFiles to set |
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246 | */ |
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247 | public void setSendingFiles(boolean sendingFiles) { |
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248 | this.sendingFiles = sendingFiles; |
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249 | } |
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250 | |
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251 | /** |
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252 | * @return the privacyLevel |
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253 | */ |
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254 | public int getPrivacyLevel() { |
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255 | return privacyLevel; |
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256 | } |
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257 | |
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258 | /** |
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259 | * @param privacyLevel the privacyLevel to set |
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260 | */ |
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261 | public void setPrivacyLevel(int privacyLevel) { |
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262 | this.privacyLevel = privacyLevel; |
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263 | } |
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264 | |
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265 | } |
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