disable call and hangup buttons, and buttons in chat contact panel.

src/net/java/sip/communicator/impl/gui/lookandfeel/SIPCommLookAndFeel.java

@@ -6,10 +6,17 @@
  */
 package net.java.sip.communicator.impl.gui.lookandfeel;
 
+import javax.swing.GrayFilter;
+import javax.swing.Icon;
+import javax.swing.ImageIcon;
+import javax.swing.JComponent;
 import javax.swing.UIDefaults;
 import javax.swing.UIManager;
+import javax.swing.plaf.IconUIResource;
 import javax.swing.plaf.metal.MetalLookAndFeel;
 
+import net.java.sip.communicator.impl.gui.utils.LightGrayFilter;
+
 /**
  * The default SIP-Communicator look&feel.
  * 
@@ -60,4 +67,12 @@ protected void initClassDefaults(UIDefaults table) {
         };
         table.putDefaults(uiDefaults);
     }
+    
+    public Icon getDisabledIcon(JComponent component, Icon icon) {
+        if (icon instanceof ImageIcon) {
+            return new IconUIResource(new ImageIcon(LightGrayFilter.
+                   createDisabledImage(((ImageIcon)icon).getImage())));
+        }
+        return null;
+    }
 }

src/net/java/sip/communicator/impl/gui/main/CallPanel.java

@@ -4,7 +4,6 @@
  * Distributable under LGPL license.
  * See terms of license at gnu.org.
  */
-
 package net.java.sip.communicator.impl.gui.main;
 
 import java.awt.BorderLayout;
@@ -94,7 +93,11 @@ private void init() {
 		
 		this.minimizeButtonPanel.add(restoreButton);
 		
-		this.add(minimizeButtonPanel,BorderLayout.SOUTH);		
+		this.add(minimizeButtonPanel,BorderLayout.SOUTH);
+        
+        //Disable all unused buttons.
+        this.callButton.setEnabled(false);
+        this.hangupButton.setEnabled(false);
 	}
 
 	public JComboBox getPhoneNumberCombo() {

src/net/java/sip/communicator/impl/gui/main/customcontrols/SIPCommButton.java

@@ -12,7 +12,6 @@
 import java.awt.Graphics;
 import java.awt.Image;
 
-import javax.swing.GrayFilter;
 import javax.swing.ImageIcon;
 import javax.swing.JButton;
 import javax.swing.plaf.IconUIResource;
@@ -20,6 +19,7 @@
 import net.java.sip.communicator.impl.gui.utils.AntialiasingManager;
 import net.java.sip.communicator.impl.gui.utils.Constants;
 import net.java.sip.communicator.impl.gui.utils.ImageLoader;
+import net.java.sip.communicator.impl.gui.utils.LightGrayFilter;
 
 /**
  * @author Yana Stamcheva
@@ -96,14 +96,23 @@ public SIPCommButton(Image bgImage, Image rolloverImage) {
 	public void paintComponent(Graphics g) {	
 		AntialiasingManager.activateAntialiasing(g);
 		
-        if(this.bgImage != null)
-            g.drawImage(this.bgImage, 0, 0, this);
+        if(this.bgImage != null){
+            // If there's no icon, we make grey the backgroundImage
+            // when disabled.
+            if(this.iconImage == null && !isEnabled()){
+                Image disabledImage = new ImageIcon(
+                    LightGrayFilter.createDisabledImage(bgImage)).getImage();
+                
+                g.drawImage(disabledImage, 0, 0, this);
+            }
+            else
+                g.drawImage(this.bgImage, 0, 0, this);
+        }
 
-        if (this.iconImage != null) {
-            
+        if (this.iconImage != null) {            
             if(!isEnabled()){
-                this.iconImage = new ImageIcon(
-                    GrayFilter.createDisabledImage(iconImage)).getImage();            
+                this.iconImage = new ImageIcon(LightGrayFilter
+                        .createDisabledImage(iconImage)).getImage();            
             }
             // draw the button icon depending the current button layout
             if (this.iconLayout.equals(SIPCommButton.CENTER_ICON_LAYOUT))

src/net/java/sip/communicator/impl/gui/main/message/ChatContactPanel.java

@@ -109,6 +109,10 @@ public void init(){
 		this.add(personPhotoLabel, BorderLayout.WEST);
 		this.add(mainPanel, BorderLayout.CENTER);
 		
+        //Disabled all unused buttons.
+        this.callButton.setEnabled(false);
+        this.infoButton.setEnabled(false);
+        this.sendFileButton.setEnabled(false);
 	}
 		
 	public void paintComponent(Graphics g){

src/net/java/sip/communicator/impl/gui/utils/LightGrayFilter.java

@@ -0,0 +1,40 @@
+/*
+ * SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
+ *
+ * Distributable under LGPL license.
+ * See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.impl.gui.utils;
+
+import java.awt.Image;
+import java.awt.Toolkit;
+import java.awt.image.FilteredImageSource;
+import java.awt.image.ImageProducer;
+
+import javax.swing.GrayFilter;
+
+/**
+ * An image filter that "disables" an image by turning
+ * it into a grayscale image, and brightening the pixels
+ * in the image. Used by buttons to create an image for
+ * a disabled button. Creates a more brighter image than 
+ * the javax.swing.GrayFilter.
+ * 
+ * @author Yana Stamcheva
+ */
+public class LightGrayFilter extends GrayFilter {
+
+    public LightGrayFilter(boolean b, int p) {
+        super(b, p);
+    }
+    /**
+     * Creates a disabled image
+     */
+    public static Image createDisabledImage (Image i) {
+        LightGrayFilter filter = new LightGrayFilter(true, 65);
+        ImageProducer prod = new FilteredImageSource(i.getSource(), filter);
+        Image grayImage = Toolkit.getDefaultToolkit().createImage(prod);
+        
+        return grayImage;
+    }    
+}