vaadin-framework/src/com/itmill/toolkit/terminal/gwt/client/ui/Time.java

package com.itmill.toolkit.terminal.gwt.client.ui;

import com.google.gwt.user.client.ui.ChangeListener;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.ListBox;
import com.google.gwt.user.client.ui.Widget;

public class Time extends FlowPanel implements ChangeListener {

	private IDateField datefield;

	private ListBox hours;

	private ListBox mins;

	private ListBox sec;

	private ListBox msec;

	private ListBox ampm;

	private int resolution = IDateField.RESOLUTION_HOUR;

	private boolean readonly;

	public Time(IDateField parent) {
		super();
		datefield = parent;
		setStyleName(IDateField.CLASSNAME + "-time");
	}

	private void buildTime(boolean redraw) {
		boolean thc = datefield.getDateTimeService().isTwelveHourClock();
		if (redraw) {
			clear();
			int numHours = thc ? 12 : 24;
			hours = new ListBox();
			hours.setStyleName(ISelect.CLASSNAME);
			for (int i = 0; i < numHours; i++)
				hours.addItem((i < 10) ? "0" + i : "" + i);
			hours.addChangeListener(this);
			if (thc) {
				ampm = new ListBox();
				ampm.setStyleName(ISelect.CLASSNAME);
				String[] ampmText = datefield.getDateTimeService()
						.getAmPmStrings();
				ampm.addItem(ampmText[0]);
				ampm.addItem(ampmText[1]);
				ampm.addChangeListener(this);
			}

			if (datefield.getCurrentResolution() >= IDateField.RESOLUTION_MIN) {
				mins = new ListBox();
				mins.setStyleName(ISelect.CLASSNAME);
				for (int i = 0; i < 60; i++)
					mins.addItem((i < 10) ? "0" + i : "" + i);
				mins.addChangeListener(this);
			}
			if (datefield.getCurrentResolution() >= IDateField.RESOLUTION_SEC) {
				sec = new ListBox();
				sec.setStyleName(ISelect.CLASSNAME);
				for (int i = 0; i < 60; i++)
					sec.addItem((i < 10) ? "0" + i : "" + i);
				sec.addChangeListener(this);
			}
			if (datefield.getCurrentResolution() == IDateField.RESOLUTION_MSEC) {
				msec = new ListBox();
				msec.setStyleName(ISelect.CLASSNAME);
				for (int i = 0; i < 1000; i++) {
					if (i < 10)
						msec.addItem("00" + i);
					else if (i < 100)
						msec.addItem("0" + i);
					else
						msec.addItem("" + i);
				}
				msec.addChangeListener(this);
			}

			String delimiter = datefield.getDateTimeService()
					.getClockDelimeter();
			boolean ro = datefield.isReadonly();

			if (ro) {
				int h = 0;
				if (datefield.getCurrentDate() != null)
					h = datefield.getCurrentDate().getHours();
				if (thc)
					h -= h < 12 ? 0 : 12;
				add(new ILabel(h < 10 ? "0" + h : "" + h));
			} else
				add(hours);

			if (datefield.getCurrentResolution() >= IDateField.RESOLUTION_MIN) {
				add(new ILabel(delimiter));
				if (ro) {
					int m = mins.getSelectedIndex();
					add(new ILabel(m < 10 ? "0" + m : "" + m));
				} else
					add(mins);
			}
			if (datefield.getCurrentResolution() >= IDateField.RESOLUTION_SEC) {
				add(new ILabel(delimiter));
				if (ro) {
					int s = sec.getSelectedIndex();
					add(new ILabel(s < 10 ? "0" + s : "" + s));
				} else
					add(sec);
			}
			if (datefield.getCurrentResolution() == IDateField.RESOLUTION_MSEC) {
				add(new ILabel("."));
				if (ro) {
					int m = datefield.getMilliseconds();
					String ms = m < 100 ? "0" + m : "" + m;
					add(new ILabel(m < 10 ? "0" + ms : ms));
				} else
					add(msec);
			}
			if (datefield.getCurrentResolution() == IDateField.RESOLUTION_HOUR) {
				add(new ILabel(delimiter + "00")); // o'clock
			}
			if (thc) {
				add(new ILabel("&nbsp;"));
				if (ro)
					add(new ILabel(ampm.getItemText(datefield.getCurrentDate()
							.getHours() < 12 ? 0 : 1)));
				else
					add(ampm);
			}

			if (ro)
				return;
		}

		// Update times
		if (thc) {
			int h = datefield.getCurrentDate().getHours();
			ampm.setSelectedIndex(h < 12 ? 0 : 1);
			h -= ampm.getSelectedIndex() * 12;
			hours.setSelectedIndex(h);
		} else
			hours.setSelectedIndex(datefield.getCurrentDate().getHours());
		if (datefield.getCurrentResolution() >= IDateField.RESOLUTION_MIN)
			mins.setSelectedIndex(datefield.getCurrentDate().getMinutes());
		if (datefield.getCurrentResolution() >= IDateField.RESOLUTION_SEC)
			sec.setSelectedIndex(datefield.getCurrentDate().getSeconds());
		if (datefield.getCurrentResolution() == IDateField.RESOLUTION_MSEC)
			msec.setSelectedIndex(datefield.getMilliseconds());
		if (thc)
			ampm
					.setSelectedIndex(datefield.getCurrentDate().getHours() < 12 ? 0
							: 1);

		if (datefield.isReadonly() && !redraw) {
			// Do complete redraw when in read-only status
			clear();
			String delimiter = datefield.getDateTimeService()
					.getClockDelimeter();

			int h = datefield.getCurrentDate().getHours();
			if (thc)
				h -= h < 12 ? 0 : 12;
			add(new ILabel(h < 10 ? "0" + h : "" + h));

			if (datefield.getCurrentResolution() >= IDateField.RESOLUTION_MIN) {
				add(new ILabel(delimiter));
				int m = mins.getSelectedIndex();
				add(new ILabel(m < 10 ? "0" + m : "" + m));
			}
			if (datefield.getCurrentResolution() >= IDateField.RESOLUTION_SEC) {
				add(new ILabel(delimiter));
				int s = sec.getSelectedIndex();
				add(new ILabel(s < 10 ? "0" + s : "" + s));
			}
			if (datefield.getCurrentResolution() == IDateField.RESOLUTION_MSEC) {
				add(new ILabel("."));
				int m = datefield.getMilliseconds();
				String ms = m < 100 ? "0" + m : "" + m;
				add(new ILabel(m < 10 ? "0" + ms : ms));
			}
			if (datefield.getCurrentResolution() == IDateField.RESOLUTION_HOUR) {
				add(new ILabel(delimiter + "00")); // o'clock
			}
			if (thc) {
				add(new ILabel("&nbsp;"));
				add(new ILabel(ampm.getItemText(datefield.getCurrentDate()
						.getHours() < 12 ? 0 : 1)));
			}
		}

		boolean enabled = datefield.isEnabled();
		hours.setEnabled(enabled);
		if (mins != null)
			mins.setEnabled(enabled);
		if (sec != null)
			sec.setEnabled(enabled);
		if (msec != null)
			msec.setEnabled(enabled);
		if (ampm != null)
			ampm.setEnabled(enabled);

	}

	public void updateTime(boolean redraw) {
		buildTime(redraw || resolution != datefield.getCurrentResolution()
				|| readonly != datefield.isReadonly());
		if (datefield instanceof ITextualDate)
			((ITextualDate) datefield).buildDate();
		resolution = datefield.getCurrentResolution();
		readonly = datefield.isReadonly();
	}

	public void onChange(Widget sender) {
		if (sender == hours) {
			int h = hours.getSelectedIndex();
			if (datefield.getDateTimeService().isTwelveHourClock())
				h = h + ampm.getSelectedIndex() * 12;
			datefield.getCurrentDate().setHours(h);
			datefield.getClient().updateVariable(datefield.getId(), "hour", h,
					datefield.isImmediate());
			updateTime(false);
		} else if (sender == mins) {
			int m = mins.getSelectedIndex();
			datefield.getCurrentDate().setMinutes(m);
			datefield.getClient().updateVariable(datefield.getId(), "min", m,
					datefield.isImmediate());
			updateTime(false);
		} else if (sender == sec) {
			int s = sec.getSelectedIndex();
			datefield.getCurrentDate().setSeconds(s);
			datefield.getClient().updateVariable(datefield.getId(), "sec", s,
					datefield.isImmediate());
			updateTime(false);
		} else if (sender == msec) {
			int ms = msec.getSelectedIndex();
			datefield.setMilliseconds(ms);
			datefield.getClient().updateVariable(datefield.getId(), "msec", ms,
					datefield.isImmediate());
			updateTime(false);
		} else if (sender == ampm) {
			int h = hours.getSelectedIndex() + ampm.getSelectedIndex() * 12;
			datefield.getCurrentDate().setHours(h);
			datefield.getClient().updateVariable(datefield.getId(), "hour", h,
					datefield.isImmediate());
			updateTime(false);
		}
	}

}