fix: Value search not supporting negative or hex values

pom.xml

@@ -3,7 +3,7 @@
 	<groupId>me.coley</groupId>
 	<artifactId>recaf</artifactId>
 	<url>https://github.com/Col-E/Recaf/</url>
-	<version>2.16.3</version>
+	<version>2.16.4</version>
 	<name>Recaf</name>
 	<description>A modern java bytecode editor</description>
 	<!-- Variables -->

src/main/java/me/coley/recaf/Recaf.java

@@ -30,7 +30,7 @@
  * @author Matt
  */
 public class Recaf {
-	public static final String VERSION = "2.16.3";
+	public static final String VERSION = "2.16.4";
 	public static final String DOC_URL = "https://col-e.github.io/Recaf/documentation.html";
 	public static final int ASM_VERSION = Opcodes.ASM9;
 	private static Controller currentController;

src/main/java/me/coley/recaf/ui/controls/NumericText.java

@@ -13,17 +13,28 @@ public class NumericText extends TextField {
 	 */
 	public Number get() {
 		String text = getText();
-		if(text.matches("\\d+"))
+		// Normal int
+		if(text.matches("-?\\d+"))
 			return Integer.parseInt(text);
-		else if(text.matches("\\d+\\.?\\d*[dD]?")) {
+		// Double
+		else if(text.matches("-?\\d+\\.?\\d*[dD]?")) {
 			if(text.toLowerCase().contains("d"))
 				return Double.parseDouble(text.substring(0, text.length() - 1));
 			else
 				return Double.parseDouble(text);
-		} else if(text.matches("\\d+\\.?\\d*[fF]"))
+		}
+		// Float
+		else if(text.matches("-?\\d+\\.?\\d*[fF]"))
 			return Float.parseFloat(text.substring(0, text.length() - 1));
-		else if(text.matches("\\d+\\.?\\d*[lL]"))
+		// Long
+		else if(text.matches("-?\\d+\\.?\\d*[lL]"))
 			return Long.parseLong(text.substring(0, text.length() - 1));
+		// Hex int
+		else if(text.matches("-?0x\\d+"))
+			return (int) Long.parseLong(text.replace("0x", ""), 16);
+		// Hex long
+		else if(text.matches("-?0x\\d+[lL]"))
+			return Long.parseLong(text.substring(0, text.length() - 1).replace("0x", ""), 16);
 		return null;
 	}
 }