Added IconUtil utility class

src/main/java/envoy/client/ui/IconUtil.java

@@ -0,0 +1,31 @@
+package envoy.client.ui;
+
+import java.awt.image.BufferedImage;
+import java.io.IOException;
+import java.util.EnumMap;
+import java.util.EnumSet;
+
+import javax.imageio.ImageIO;
+
+/**
+ * Project: <strong>envoy-client</strong>
+ * File: <strong>IconUtil.java</strong>
+ * Created: <strong>16.03.2020</strong>
+ *
+ * @author Kai S. K. Engelbart
+ * @since Envoy v0.1-beta
+ */
+public class IconUtil {
+
+	private IconUtil() {}
+
+	public BufferedImage load(String path) throws IOException { return ImageIO.read(IconUtil.class.getResourceAsStream(path)); }
+
+	public <T extends Enum<T>> EnumMap<T, BufferedImage> loadByEnum(Class<T> enumClass) throws IOException {
+		var	icons	= new EnumMap<T, BufferedImage>(enumClass);
+		var	path	= "/icons/" + enumClass.getSimpleName().toLowerCase() + "/";
+		for (var e : EnumSet.allOf(enumClass))
+			icons.put(e, load(path + e.toString().toLowerCase() + ".png"));
+		return icons;
+	}
+}