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package bjc.utils.gui.panels;
import java.awt.BorderLayout;
import javax.swing.DefaultListModel;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.ListSelectionModel;
import bjc.funcdata.ListEx;
import bjc.utils.gui.layout.AutosizeLayout;
import bjc.utils.gui.layout.HLayout;
/**
* A panel that allows you to select choices from a dropdown list
*
* @author ben
*
*/
public class DropdownListPanel extends JPanel {
private static final long serialVersionUID = 2719963952350133541L;
/**
* Create a new dropdown list panel
*
* @param <T>
* The type of items in the dropdown list
* @param type
* The label of the type of items in the list
* @param model
* The model to put items into
* @param choices
* The items to choose from
*/
public <T> DropdownListPanel(final String type, final DefaultListModel<T> model,
final ListEx<T> choices) {
setLayout(new AutosizeLayout());
final JPanel itemInputPanel = new JPanel();
itemInputPanel.setLayout(new BorderLayout());
final JPanel addItemPanel = new JPanel();
addItemPanel.setLayout(new HLayout(2));
final JComboBox<T> addItemBox = new JComboBox<>();
choices.forEach(addItemBox::addItem);
final JButton addItemButton = new JButton("Add " + type);
addItemPanel.add(addItemBox);
addItemPanel.add(addItemButton);
final JList<T> itemList = new JList<>(model);
itemList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
final JButton removeItemButton = new JButton("Remove " + type);
addItemButton.addActionListener(ev -> {
model.addElement(addItemBox.getItemAt(addItemBox.getSelectedIndex()));
});
removeItemButton.addActionListener(ev -> {
model.remove(itemList.getSelectedIndex());
});
itemInputPanel.add(addItemPanel, BorderLayout.PAGE_START);
itemInputPanel.add(itemList, BorderLayout.CENTER);
itemInputPanel.add(removeItemButton, BorderLayout.PAGE_END);
add(itemInputPanel);
}
}
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