1 files changed, 61 insertions, 0 deletions
diff --git a/src/FamilyButtonListener.java b/src/FamilyButtonListener.java
new file mode 100644
index 0000000..95a4bc4
--- /dev/null
+++ b/src/FamilyButtonListener.java
@@ -0,0 +1,61 @@
+import java.awt.event.*;
+
+/*
+ * @author
+ * Kian Agheli
+ *
+ * References:
+ *
+ * Date:
+ * 2024-05-25
+ *
+ * Purpose of class:
+ * Listen for state changes in an instantiation of FamilyButton.
+ */
+public class FamilyButtonListener implements ItemListener
+{
+	private MetadataView metadataView; // A FamilyButtonListener has a metadataView
+	private FamilyButton[] buttons; // A FamilyButtonListener has an array of buttons
+	private int buttonIndex; // A FamilyButtonListener has a button at a specified index in the array
+
+	public FamilyButtonListener(FamilyButton[] buttons, int buttonIndex, MetadataView metadataView) {
+		/* Set each of the instance's fields to the given objects. */
+		this.buttons = buttons;
+		this.buttonIndex = buttonIndex;
+		this.metadataView = metadataView;
+	}
+
+	@Override
+	public void itemStateChanged(ItemEvent e) {
+		/* Get the state of the button. */
+		int state = e.getStateChange();
+		/* If the button is selected: */
+		if (state == ItemEvent.SELECTED) {
+			/* Deselect all other buttons. */
+			for (int i = 0; i < buttons.length; i++) {
+				if (i != buttonIndex) {
+					buttons[i].setSelected(false);
+				}
+			}
+
+			/* Set the metadata on display to the metadata of the FontFamily
+			associated with the selected button. */
+			metadataView.setText(buttons[buttonIndex].getFamily().toString());
+		/* If the button is deselected: */
+		} else {
+			/* Check if every button is deselected. */
+			boolean selected = true;
+			for (int i = 0; i < buttons.length; i++) {
+				if (!buttons[i].isSelected()) {
+					selected = false;
+				}
+			}
+
+			/* If every button is deselected, reset the metadata to display
+			the default text. */
+			if (!selected) {
+				metadataView.reset();
+			}
+		}
+	}
+}