*) New methods to insert bitmaps that feature transparencies.

*) Logo background is transparent now. (Using pixel at (0,0) to determine which color is transparent. Too dirty?)
*) Logo is loaded through filesystem instead of HTTP now.


git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4247 6c8d7289-2bf4-0310-a012-ef5d649a1542

htroot/Banner.java

@@ -46,9 +46,6 @@
 
 import de.anomic.http.httpHeader;
 import de.anomic.plasma.plasmaGrafics;
-import de.anomic.plasma.plasmaSwitchboard;
-import de.anomic.server.serverCore;
-import de.anomic.server.serverDomains;
 import de.anomic.server.serverObjects;
 import de.anomic.server.serverSwitch;
 import de.anomic.ymage.ymageMatrix;
@@ -56,8 +53,8 @@ import de.anomic.yacy.yacyCore;
 import de.anomic.yacy.yacySeed;
 
 import java.awt.image.BufferedImage;
+import java.io.File;
 import java.io.IOException;
-import java.net.URL;
 import javax.imageio.ImageIO;
 
 /** draw a banner with information about the peer */
@@ -65,7 +62,7 @@ public class Banner {
 
     public static ymageMatrix respond(httpHeader header, serverObjects post, serverSwitch env) throws IOException {
 
-        final String IMAGE = "env/grafics/yacy.gif";
+        final String IMAGE = "htroot/env/grafics/yacy.gif";
         int width = 468;
         int height = 60;
         String bgcolor = plasmaGrafics.COL_BACKGROUND;
@@ -126,11 +123,7 @@ public class Banner {
         }
 
         if (!plasmaGrafics.logoIsLoaded()) {
-            plasmaSwitchboard switchboard = (plasmaSwitchboard)env;
-            int port = serverCore.getPortNr(switchboard.getConfig("port", "8080"));
-            String host = serverDomains.myPublicLocalIP().getHostAddress();
-            BufferedImage logo = ImageIO.read(new URL("http://"+host+":"+port+"/"+IMAGE));
-            //BufferedImage logo = ImageIO.read(new File(IMAGE));
+            BufferedImage logo = ImageIO.read(new File(IMAGE));
             return plasmaGrafics.getBannerPicture(1000, width, height, bgcolor, textcolor, bordercolor, name, links, words, type, myppm, network, nlinks, nwords, nqph, nppm, logo);
         }
         

source/de/anomic/plasma/plasmaGrafics.java

@@ -396,7 +396,7 @@ public class plasmaGrafics {
         if (logo != null) {
             int x = (int)(100/2 - logo.getWidth()/2);
             int y = (int)(height/2 - logo.getHeight()/2);
-            bannerPicture.insertBitmap(logo, x, y);
+            bannerPicture.insertBitmap(logo, x, y, 0, 0);
         }
 
         if (!bordercolor.equals("")) {

source/de/anomic/ymage/ymageMatrix.java

@@ -264,20 +264,51 @@ public class ymageMatrix /*implements Cloneable*/ {
      *  @author Marc Nause
      */
     public void insertBitmap(BufferedImage bitmap, int x, int y) {
+        insertBitmap(bitmap, x, y, -1);
+    }
+    
+    /**
+     *  inserts an image into the ymageMatrix where all pixels that have the same RGB value as the
+     *  pixel at (xx, yy) are transparent
+     *  @param bitmap the bitmap to be inserted
+     *  @param x the x value of the upper left coordinate in the ymageMatrix where the bitmap will be placed
+     *  @param y the y value of the upper left coordinate in the ymageMatrix where the bitmap will be placed
+     *  @param xx the x value of the pixel that determines which color is transparent
+     *  @param yy the y value of the pixel that determines which color is transparent
+     *  @author Marc Nause
+     */
+    public void insertBitmap(BufferedImage bitmap, int x, int y, int xx, int yy) {
+        insertBitmap(bitmap, x, y, bitmap.getRGB(xx, yy));
+    }    
+
+    /**
+     *  inserts an image into the ymageMatrix where all pixels that have a special RGB value
+     *  pixel at (xx, yy) are transparent
+     *  @param bitmap the bitmap to be inserted
+     *  @param x the x value of the upper left coordinate in the ymageMatrix where the bitmap will be placed
+     *  @param y the y value of the upper left coordinate in the ymageMatrix where the bitmap will be placed
+     *  @param rgb the RGB value that will be transparent
+     *  @author Marc Nause
+     */      
+    public void insertBitmap(BufferedImage bitmap, int x, int y, int transRGB) {
         int heightSrc = bitmap.getHeight();
         int widthSrc  = bitmap.getWidth();
         int heightTgt = image.getHeight();
         int widthTgt  = image.getWidth();
 
+        int rgb;
         for (int i = 0; i < heightSrc; i++) {
             for (int j = 0; j < widthSrc; j++) {
                 // pixel in legal area?
                 if (j+x >= 0 && i+y >= 0 && i+y < heightTgt && j+x < widthTgt) {
-                    image.setRGB(j+x, i+y, bitmap.getRGB(j, i));
+                    rgb = bitmap.getRGB(j, i);
+                    if (rgb != transRGB) {
+                        image.setRGB(j+x, i+y, rgb);
+                    }
                 }
             }
         }
-    }
+    }      
     
     public static void demoPaint(ymageMatrix m) {
         m.setColor(SUBTRACTIVE_CYAN);