Changeset 1426 for trunk/src/org/expeditee/gio/ImageManager.java

Timestamp:

07/31/19 15:51:04 (5 years ago)

Author:

bln4

Message:

Implemented surrogates for images. When you add an encryption label to a picture, the default is a on-the-fly generated image of noise. This generated image has the same size specifications as the primary image.

File:

• trunk/src/org/expeditee/gio/ImageManager.java (modified) (3 diffs)

trunk/src/org/expeditee/gio/ImageManager.java

@@ -5 +5 @@
 import java.net.HttpURLConnection;
 import java.net.URL;
+import java.util.Random;
 
 import org.expeditee.core.Colour;
@@ -75 +76 @@
         public abstract Image getImage(String filename);
         
+        /** Gets an image that is just noise */
+        public Image getNoise() {
+                int width = 100;
+                int height = 100;
+                int[] pixelData = new int[width * height];
+                Random rand = new Random();
+                
+                for (int i = 0; i < pixelData.length; i++) {
+                        int alpha = rand.nextInt(256) << 24;
+                        int red = rand.nextInt(256) << 16;
+                        int green = rand.nextInt(256) << 8;
+                        int blue = rand.nextInt(256);
+                        pixelData[i] = alpha | red | green | blue;
+                } 
+                
+                return createImage(width, height, pixelData);
+        }
+        
         /** Gets image data from a HTTP connection. */
         public abstract Image getImage(HttpURLConnection connection) throws IOException;
@@ -125 +144 @@
         
         /** Writes the image data to disk. Format should be png, bmp, etc. */
-        public abstract boolean writeImageToDisk(Image image, String format, File file) throws IOException;
-        
+        public abstract boolean writeImageToDisk(Image image, String format, File file) throws IOException;     
 }