Initial commit

src/main/java/org/lumijiez/gui/util/ComboRenderer.java

@@ -0,0 +1,21 @@
+package org.lumijiez.gui.util;
+
+import javax.swing.*;
+import java.awt.*;
+
+// Generic function that takes a ComboBox with a <T> object and sets the DefaultListCellRenderer according to the object
+public class ComboRenderer {
+    public static <T> void setRenderer(JComboBox<T> comboBox, T[] items) {
+        comboBox.setModel(new DefaultComboBoxModel<>(items));
+        comboBox.setRenderer(new DefaultListCellRenderer() {
+            @Override
+            public Component getListCellRendererComponent(JList<?> list, Object value, int index, boolean isSelected, boolean cellHasFocus) {
+                if (value != null) {
+                    setText(value.toString());
+                }
+                return super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);
+            }
+        });
+    }
+}
+