src/charactermanaj/graphics/ColorConvertedImageCachedLoader.java

   1 package charactermanaj.graphics;\r
   2 \r
   3 import java.io.IOException;\r
   4 \r
   5 import charactermanaj.graphics.filters.ColorConvertParameter;\r
   6 import charactermanaj.graphics.io.ImageCache;\r
   7 import charactermanaj.graphics.io.ImageCachedLoader;\r
   8 import charactermanaj.graphics.io.ImageLoader;\r
   9 import charactermanaj.graphics.io.ImageResource;\r
  10 import charactermanaj.graphics.io.LoadedImage;\r
  11 \r
  12 public class ColorConvertedImageCachedLoader extends ColorConvertedImageLoaderImpl {\r
  13 \r
  14         private ImageCache<ColorConvertedImageKey> caches = new ImageCache<ColorConvertedImageKey>();\r
  15         \r
  16         public ColorConvertedImageCachedLoader() {\r
  17                 this(new ImageCachedLoader());\r
  18         }\r
  19         \r
  20         public ColorConvertedImageCachedLoader(ImageLoader imageLoader) {\r
  21                 super(imageLoader);\r
  22         }\r
  23 \r
  24         @Override\r
  25         public LoadedImage load(ImageResource file,\r
  26                         ColorConvertParameter colorConvParam) throws IOException {\r
  27                 if (file == null) {\r
  28                         throw new IllegalArgumentException();\r
  29                 }\r
  30 \r
  31                 ColorConvertParameter param;\r
  32                 if (colorConvParam == null) {\r
  33                         param = new ColorConvertParameter();\r
  34                 } else {\r
  35                         param = colorConvParam.clone();\r
  36                 }\r
  37                 ColorConvertedImageKey key = new ColorConvertedImageKey(param, file);\r
  38                 \r
  39                 synchronized (caches) {\r
  40                         LoadedImage loadedImage = caches.get(key);\r
  41                         if (loadedImage == null) {\r
  42                                 loadedImage = super.load(file, param);\r
  43                                 caches.set(key, loadedImage);\r
  44                         }\r
  45                         return loadedImage;\r
  46                 }\r
  47         }\r
  48         \r
  49         public void unlockImages() {\r
  50                 caches.unlockImages();\r
  51         }\r
  52         \r
  53 }\r
  54 \r
  55 final class ColorConvertedImageKey {\r
  56         \r
  57         private final ColorConvertParameter colorConvParameter;\r
  58         \r
  59         private final ImageResource imageResource;\r
  60         \r
  61         private final long lastModified;\r
  62         \r
  63         private final int hashCode;\r
  64         \r
  65         public ColorConvertedImageKey(ColorConvertParameter colorConvParameter, ImageResource imageResource) {\r
  66                 if (colorConvParameter == null || imageResource == null) {\r
  67                         throw new IllegalArgumentException();\r
  68                 }\r
  69                 this.colorConvParameter = colorConvParameter;\r
  70                 this.imageResource = imageResource;\r
  71                 this.lastModified = imageResource.lastModified();\r
  72                 this.hashCode = imageResource.hashCode()\r
  73                                 ^ colorConvParameter.hashCode() ^ (int) this.lastModified;\r
  74         }\r
  75         \r
  76         @Override\r
  77         public int hashCode() {\r
  78                 return this.hashCode;\r
  79         }\r
  80         \r
  81         @Override\r
  82         public boolean equals(Object obj) {\r
  83                 if (obj == this) {\r
  84                         return true;\r
  85                 }\r
  86                 if (obj != null && obj instanceof ColorConvertedImageKey) {\r
  87                         ColorConvertedImageKey other = (ColorConvertedImageKey) obj;\r
  88                         return lastModified == other.lastModified\r
  89                                         && imageResource.equals(other.imageResource)\r
  90                                         && colorConvParameter.equals(other.colorConvParameter);\r
  91                 }\r
  92                 return false;\r
  93         }\r
  94 }\r