fix: deck menu icon scaling on high resolution displays

Using bicubic interpolation and anti-aliasing,
the icons become much clearer and less "jank"

Author: BlythT

forge-gui-desktop/src/main/java/forge/itemmanager/DeckManager.java

@@ -2,9 +2,12 @@
 
 import java.awt.Component;
 import java.awt.Graphics;
+import java.awt.Graphics2D;
 import java.awt.Rectangle;
+import java.awt.RenderingHints;
 import java.awt.event.MouseEvent;
 import java.util.*;
+import java.util.List;
 import java.util.Map.Entry;
 
 import javax.swing.JMenu;
@@ -480,6 +483,13 @@ else if (x >= imgSize && x < imgSize * 2) { //edit button
         public final void paint(final Graphics g) {
             super.paint(g);
 
+            // Improve scaling quality
+            if (g instanceof Graphics2D g2d) {
+                g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
+                g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
+                g2d.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
+            }
+
             FSkin.drawImage(g, /*overActionIndex == 0 ? icoDeleteOver : */icoDelete, 0, 0, imgSize, imgSize);
             FSkin.drawImage(g, /*overActionIndex == 0 ? icoDeleteOver : */icoEdit, imgSize - 1, -1, imgSize, imgSize);
         }

forge-gui-desktop/src/main/java/forge/itemmanager/views/DeckStarRenderer.java

@@ -19,6 +19,8 @@
 
 import java.awt.Component;
 import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.RenderingHints;
 import java.awt.event.MouseEvent;
 
 import javax.swing.JTable;
@@ -110,6 +112,13 @@ public final void paint(final Graphics g) {
         if (size > width) {
             size = width;
         }
+
+        // Improve scaling quality
+        if (g instanceof Graphics2D g2d) {
+            g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
+            g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
+            g2d.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
+        }
         FSkin.drawImage(g, skinImage, (width - size) / 2, (height - size) / 2, size, size);
     }
 }