Use multiResolutionImages

src/main/java/mpo/dayon/common/gui/common/ImageNames.java

@@ -4,13 +4,12 @@ public final class ImageNames {
 	private ImageNames() {
 	}
 
-	public static final String APP = "app_32.png";
-	public static final String APP_LARGE = "app_48.png";
+	public static final String APP = "app.png";
+	public static final String APP_LARGE = "app_l.png";
 	public static final String CAPTURE_SETTINGS = "capture_settings.png";
 	public static final String COMPATIBILITY = "compatibility.png";
 	public static final String COMPRESSION_SETTINGS = "compression_settings.png";
 	public static final String CONTROL = "control.png";
-	public static final String COPY = "copy.png";
 	public static final String DOWN = "down.png";
 	public static final String EXIT = "exit.png";
 	public static final String FINGERPRINT = "fingerprint.png";
@@ -28,7 +27,7 @@ private ImageNames() {
 	public static final String START = "start.png";
 	public static final String STOP = "stop.png";
 	public static final String UP = "up.png";
-	public static final String USERS = "users_48.png";
+	public static final String USERS = "users.png";
 	public static final String WAITING = "waiting.gif";
 	public static final String WIN = "win.png";
 

src/main/java/mpo/dayon/common/gui/common/ImageUtilities.java

@@ -1,8 +1,14 @@
 package mpo.dayon.common.gui.common;
 
+import javax.imageio.ImageIO;
 import javax.swing.ImageIcon;
-import java.util.HashMap;
-import java.util.Map;
+import java.awt.*;
+import java.awt.image.BaseMultiResolutionImage;
+import java.io.IOException;
+import java.util.*;
+import java.util.List;
+
+import static java.lang.String.format;
 
 public final class ImageUtilities {
     private ImageUtilities() {
@@ -13,11 +19,20 @@ private ImageUtilities() {
     public static ImageIcon getOrCreateIcon(String name) {
         ImageIcon icon = ICON_CACHE.get(name);
         if (icon == null) {
-            final String rname = "/images/" + name;
+            final String rname = "/images/%s/" + name;
             try {
-                icon = new ImageIcon(ImageUtilities.class.getResource(rname));
-            } catch (NullPointerException ex) {
-                throw new IllegalStateException(String.format("Missing icon [%s].", rname));
+                if (!name.equals("waiting.gif")) {
+                    List<Image> imgList = new ArrayList<>();
+                    for (String s : Arrays.asList("100", "125", "150", "175", "200")) {
+                        imgList.add(ImageIO.read(ImageUtilities.class.getResource(format(rname, s))));
+                    }
+                    BaseMultiResolutionImage multiResolutionImage = new BaseMultiResolutionImage(imgList.toArray(new Image[0]));
+                    icon = new ImageIcon(multiResolutionImage);
+                } else {
+                    icon = new ImageIcon(ImageUtilities.class.getResource("/images/" + name));
+                }
+            } catch (NullPointerException | IOException | IllegalArgumentException ex) {
+                throw new IllegalStateException(format("Missing icon [%s].", rname));
             }
             ICON_CACHE.put(name, icon);
         }