TimerPanel.java

package haven;

import ender.timer.Timer;
import ender.timer.TimerController;

public class TimerPanel extends Window {

	private static TimerPanel instance;
	private Button btnnew;

	public static void toggle() {
		if (instance == null) {
			instance = new TimerPanel(UI.instance.root);
		} else {
			UI.instance.destroy(instance);
		}
	}

	public TimerPanel(Widget parent) {
		super(new Coord(250, 100), Coord.z, parent, "Timers");
		justclose = true;
		btnnew = new Button(Coord.z, 100, this, "Add timer");

		synchronized (TimerController.getInstance().timers) {
			for (Timer timer : TimerController.getInstance().timers) {
				new TimerWdg(Coord.z, this, timer);
			}
		}
		pack();
	}

	@Override
	public void pack() {
		int n, i = 0, h = 0;
		synchronized (TimerController.getInstance().timers) {
			n = TimerController.getInstance().timers.size();
		}
		n = (int) Math.ceil(Math.sqrt((double) n / 3));
		for (Widget wdg = child; wdg != null; wdg = wdg.next) {
			if (!(wdg instanceof TimerWdg))
				continue;
			wdg.c = new Coord((i % n) * wdg.sz.x, ((int) (i / n)) * wdg.sz.y);
			h = wdg.c.y + wdg.sz.y;
			i++;
		}

		btnnew.c = new Coord(0, h);
		super.pack();
	}

	@Override
	public void wdgmsg(Widget sender, String msg, Object... args) {
		if (sender == btnnew) {
			new TimerAddWdg(c, ui.root, this);
		} else {
			super.wdgmsg(sender, msg, args);
		}
	}

	@Override
	public void destroy() {
		instance = null;
		super.destroy();
	}

	class TimerAddWdg extends Window {

		private TextEntry name, hours, minutes, seconds;
		private Button btnadd;
		private TimerPanel panel;

		public TimerAddWdg(Coord c, Widget parent, TimerPanel panel) {
			super(c, Coord.z, parent, "Add timer");
			justclose = true;
			this.panel = panel;
			name = new TextEntry(Coord.z, new Coord(150, 18), this, "timer");
			new Label(new Coord(0, 25), this, "hours");
			new Label(new Coord(50, 25), this, "min");
			new Label(new Coord(100, 25), this, "sec");
			hours = new TextEntry(new Coord(0, 40), new Coord(45, 18), this, "0");
			minutes = new TextEntry(new Coord(50, 40), new Coord(45, 18), this, "00");
			seconds = new TextEntry(new Coord(100, 40), new Coord(45, 18), this, "00");
			btnadd = new Button(new Coord(0, 60), 100, this, "Add");
			pack();
		}

		@Override
		public void wdgmsg(Widget sender, String msg, Object... args) {
			if (sender == btnadd) {
				try {
					long time = 0;
					time += Integer.parseInt(seconds.text);
					time += Integer.parseInt(minutes.text) * 60;
					time += Integer.parseInt(hours.text) * 3600;
					Timer timer = new Timer(time, name.text);
					TimerController.getInstance().save();
					new TimerWdg(Coord.z, panel, timer);
					panel.pack();
					ui.destroy(this);
				} catch (Exception e) {
					System.out.println(e.getMessage());
					e.printStackTrace();
				}
			} else {
				super.wdgmsg(sender, msg, args);
			}
		}

		@Override
		public void destroy() {
			panel = null;
			super.destroy();
		}

	}
}