/*

 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of the License "Eclipse Public License v1.0"

 * which accompanies this distribution, and is available

 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

 *

 * Initial Contributors:

 * Nokia Corporation - initial contribution.

 *

 * Contributors:

 *

 * Description: 

 *

 */

/**

 * 

 */

package com.nokia.carbide.cpp.internal.pi.actions;

import java.text.DecimalFormat;

import java.util.Enumeration;

import org.eclipse.swt.SWT;

import org.eclipse.swt.events.FocusEvent;

import org.eclipse.swt.events.FocusListener;

import org.eclipse.swt.events.SelectionEvent;

import org.eclipse.swt.events.SelectionListener;

import org.eclipse.swt.layout.FillLayout;

import org.eclipse.swt.widgets.Composite;

import org.eclipse.swt.widgets.Control;

import org.eclipse.swt.widgets.Event;

import org.eclipse.swt.widgets.Label;

import org.eclipse.swt.widgets.Text;

import com.nokia.carbide.cpp.internal.pi.analyser.PIChangeEvent;

import com.nokia.carbide.cpp.internal.pi.manager.PluginInitialiser;

import com.nokia.carbide.cpp.internal.pi.plugin.model.IEventListener;

public class TimeSetAction extends org.eclipse.jface.action.ControlContribution {

	double startTime = 0;

	double endTime   = 0;

	private Text  startTimeText;

	private Text  endTimeText;

	private DecimalFormat timeFormat = new DecimalFormat(Messages.getString("TimeSetAction.decimalFormat")); //$NON-NLS-1$

	public TimeSetAction(String id) {

		super(id);

	}

	public void setTime(double start, double end) {

		if (start < 0f)

			start = 0f;

		if (end < 0f)

			end = 0f;

		if (start <= end) {

			this.startTime = start;

			this.endTime   = end;

		} else {

			// swap start and end

			double temp = start;

			this.startTime = end;

			this.endTime   = temp;

		}

		if ((startTimeText == null) || (endTimeText == null))

			return;

		startTimeText.setText(timeFormat.format(startTime));

		endTimeText.setText(timeFormat.format(endTime));

	}

	public void setStartTime(double start) {

		setTime(start, this.endTime);

	}

	public void setEndTime(double end) {

		setTime(this.startTime, end);

	}

	public double getStartTime() {

		return this.startTime;

	}

	public double getEndTime() {

		return this.endTime;

	}

	protected Control createControl(Composite parent) {

		Composite control;

		Label label;

		// create a composite where the user can enter a start time and an end time

		control = new Composite(parent, SWT.BORDER);

		parent.setLayout(new FillLayout(SWT.HORIZONTAL));

		control.setLayout(new FillLayout(SWT.HORIZONTAL));

		label = new Label(control, SWT.RIGHT);

		label.setText(Messages.getString("TimeSetAction.startTime")); //$NON-NLS-1$

		label.pack();

		startTimeText = new Text(control, SWT.BORDER);

		if (startTime >= 0.0f)

			startTimeText.setText(timeFormat.format(startTime));

		else

			startTimeText.setText(""); //$NON-NLS-1$

		startTimeText.addFocusListener(new FocusListener() {

			double initialStartTime = -1;

			public void focusGained(FocusEvent e) {

				initialStartTime = startTime;

			}

			public void focusLost(FocusEvent e) {

				double new_double;

				// convert, catch (NumberFormatException e1)

				try {

					new_double = Double.parseDouble(startTimeText.getText().replace(',','.'));

					if (new_double >= 0)

						startTime = new_double;

				} catch (NumberFormatException exc) {

					// just keep the old value

				}					

				// redisplay the time

				setTime(startTime, endTime);

				if (startTime != initialStartTime) {

					PIChangeEvent.action("changeSelection"); //$NON-NLS-1$

					// after the graphs have been updated, notify plugins that might have tables but no graphs

            		Enumeration enu = PluginInitialiser.getPluginInstances(

            									"com.nokia.carbide.cpp.internal.pi.plugin.model.IEventListener"); //$NON-NLS-1$

            		if (enu != null) {

            			Event event = new Event();

            			event.start = (int) startTime;

            			event.end   = (int) endTime;

	            		while (enu.hasMoreElements())

	            		{

	            			IEventListener plugin = (IEventListener)enu.nextElement();

	            			plugin.receiveEvent("changeSelection", event); //$NON-NLS-1$

	            		}

            		}

				}

			}

		});

		startTimeText.addSelectionListener(new SelectionListener() {

			public void widgetSelected(SelectionEvent e) {

			}

			public void widgetDefaultSelected(SelectionEvent e) {

				double new_double;

				// convert, catch (NumberFormatException e1)

				try {

					new_double = Double.parseDouble(startTimeText.getText().replace(',','.'));

					if (new_double >= 0)

						startTime = new_double;

				} catch (NumberFormatException exc) {

					// just keep the old value

				}					

				// redisplay the time

				setTime(startTime, endTime);

			}

		});

		label = new Label(control, SWT.RIGHT);

		label.setText(Messages.getString("TimeSetAction.endTime")); //$NON-NLS-1$

		label.pack();

		endTimeText   = new Text(control, SWT.BORDER);

		if (endTime >= 0.0f)

			endTimeText.setText(timeFormat.format(endTime));

		else

			endTimeText.setText(""); //$NON-NLS-1$

		endTimeText.addFocusListener(new FocusListener() {

			double initialEndTime   = -1;

			public void focusGained(FocusEvent e) {

				initialEndTime = endTime;

			}

			public void focusLost(FocusEvent e) {

				double new_double;

				// convert, catch (NumberFormatException e1)

				try {

					new_double = Double.parseDouble(endTimeText.getText().replace(',','.'));

					if (new_double >= 0)

						endTime = new_double;

				} catch (NumberFormatException exc) {

					// just keep the old value

				}					

				// redisplay the time

				setTime(startTime, endTime);

				if (endTime != initialEndTime) {

					PIChangeEvent.action("changeSelection"); //$NON-NLS-1$

					// after the graphs have been updated, notify plugins that might have tables but no graphs

            		Enumeration enu = PluginInitialiser.getPluginInstances(

            									"com.nokia.carbide.cpp.internal.pi.plugin.model.IEventListener"); //$NON-NLS-1$

            		if (enu != null) {

            			Event event = new Event();

            			event.start = (int) startTime;

            			event.end   = (int) endTime;

	            		while (enu.hasMoreElements())

	            		{

	            			IEventListener plugin = (IEventListener)enu.nextElement();

	            			plugin.receiveEvent("changeSelection", event); //$NON-NLS-1$

	            		}

            		}

				}

			}

		});

		endTimeText.addSelectionListener(new SelectionListener() {

			public void widgetSelected(SelectionEvent e) {

			}

			public void widgetDefaultSelected(SelectionEvent e) {

				double new_double;

				// convert, catch (NumberFormatException e1)

				try {

					new_double = Double.parseDouble(endTimeText.getText().replace(',','.'));

					if (new_double >= 0)

						endTime = new_double;

				} catch (NumberFormatException exc) {

					// just keep the old value

				}					

				// redisplay the time

				setTime(startTime, endTime);

			}

		});

		control.addFocusListener(new FocusListener() {

			public void focusGained(FocusEvent e) {

			}

			public void focusLost(FocusEvent e) {

				if (startTime >= 0.0f)

					startTimeText.setText(timeFormat.format(startTime));

				else

					startTimeText.setText(""); //$NON-NLS-1$

				if (endTime >= 0.0f)

					endTimeText.setText(timeFormat.format(endTime));

				else

					endTimeText.setText(""); //$NON-NLS-1$

			}

		});

		return control;

	}

	public void dispose() {

	}

}