image component: support setPreferredSize

runelite-client/src/main/java/net/runelite/client/ui/overlay/components/ImageComponent.java

@@ -24,35 +24,37 @@
  */
 package net.runelite.client.ui.overlay.components;
 
+import com.google.common.base.MoreObjects;
 import java.awt.Dimension;
 import java.awt.Graphics2D;
 import java.awt.Point;
 import java.awt.Rectangle;
 import java.awt.image.BufferedImage;
 import lombok.Getter;
+import lombok.NonNull;
 import lombok.RequiredArgsConstructor;
 import lombok.Setter;
+import net.runelite.client.util.ImageUtil;
 
 @RequiredArgsConstructor
-@Setter
 public class ImageComponent implements LayoutableRenderableEntity
 {
+	@NonNull
 	private final BufferedImage image;
 
+	private BufferedImage scaledImage;
+
 	@Getter
 	private final Rectangle bounds = new Rectangle();
 
+	@Setter
 	private Point preferredLocation = new Point();
 
 	@Override
 	public Dimension render(Graphics2D graphics)
 	{
-		if (image == null)
-		{
-			return null;
-		}
-
-		graphics.drawImage(image, preferredLocation.x, preferredLocation.y, null);
+		BufferedImage i = MoreObjects.firstNonNull(scaledImage, image);
+		graphics.drawImage(i, preferredLocation.x, preferredLocation.y, null);
 		final Dimension dimension = new Dimension(image.getWidth(), image.getHeight());
 		bounds.setLocation(preferredLocation);
 		bounds.setSize(dimension);
@@ -60,8 +62,15 @@ public class ImageComponent implements LayoutableRenderableEntity
 	}
 
 	@Override
-	public void setPreferredSize(Dimension dimension)
+	public void setPreferredSize(Dimension preferredSize)
 	{
-		// Just use image dimensions for now
+		if (preferredSize == null || (preferredSize.width == image.getWidth() && preferredSize.height == image.getHeight()))
+		{
+			scaledImage = null;
+		}
+		else
+		{
+			scaledImage = ImageUtil.resizeImage(image, preferredSize.width, preferredSize.height);
+		}
 	}
-}
+}