/* Copyright (c) 2010, Carl Burch. License information is located in the
* com.cburch.logisim.Main source code and at www.cburch.com/logisim/. */
package com.cburch.logisim.gui.menu;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.HashMap;
import java.util.Map;
import javax.swing.JMenuItem;
import javax.swing.JPopupMenu;
public abstract class EditPopup extends JPopupMenu {
private class Listener implements ActionListener {
public void actionPerformed(ActionEvent e) {
Object source = e.getSource();
for (Map.Entry<LogisimMenuItem, JMenuItem> entry : items.entrySet()) {
if (entry.getValue() == source) {
fire(entry.getKey());
return;
}
}
}
}
private Listener listener;
private Map<LogisimMenuItem, JMenuItem> items;
public EditPopup() {
this(false);
}
public EditPopup(boolean waitForInitialize) {
listener = new Listener();
items = new HashMap<LogisimMenuItem, JMenuItem>();
if (!waitForInitialize) initialize();
}
protected void initialize() {
boolean x = false;
x |= add(LogisimMenuBar.CUT, Strings.get("editCutItem"));
x |= add(LogisimMenuBar.COPY, Strings.get("editCopyItem"));
if (x) { addSeparator(); x = false; }
x |= add(LogisimMenuBar.DELETE, Strings.get("editClearItem"));
x |= add(LogisimMenuBar.DUPLICATE, Strings.get("editDuplicateItem"));
if (x) { addSeparator(); x = false; }
x |= add(LogisimMenuBar.RAISE, Strings.get("editRaiseItem"));
x |= add(LogisimMenuBar.LOWER, Strings.get("editLowerItem"));
x |= add(LogisimMenuBar.RAISE_TOP, Strings.get("editRaiseTopItem"));
x |= add(LogisimMenuBar.LOWER_BOTTOM, Strings.get("editLowerBottomItem"));
if (x) { addSeparator(); x = false; }
x |= add(LogisimMenuBar.ADD_CONTROL, Strings.get("editAddControlItem"));
x |= add(LogisimMenuBar.REMOVE_CONTROL, Strings.get("editRemoveControlItem"));
if (!x && getComponentCount() > 0) { remove(getComponentCount() - 1); }
}
private boolean add(LogisimMenuItem item, String display) {
if (shouldShow(item)) {
JMenuItem menu = new JMenuItem(display);
items.put(item, menu);
menu.setEnabled(isEnabled(item));
menu.addActionListener(listener);
add(menu);
return true;
} else {
return false;
}
}
protected abstract boolean shouldShow(LogisimMenuItem item);
protected abstract boolean isEnabled(LogisimMenuItem item);
protected abstract void fire(LogisimMenuItem item);
}