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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();
}
}
}
}
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