/*

 * 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.analyser;

import java.awt.Component;

import java.io.File;

import java.io.IOException;

import java.text.DecimalFormat;

import org.eclipse.swt.SWT;

import org.eclipse.swt.custom.SashForm;

import org.eclipse.swt.events.SelectionAdapter;

import org.eclipse.swt.events.SelectionEvent;

import org.eclipse.swt.layout.FormAttachment;

import org.eclipse.swt.layout.FormData;

import org.eclipse.swt.layout.FormLayout;

import org.eclipse.swt.widgets.Composite;

import org.eclipse.swt.widgets.Display;

import org.eclipse.swt.widgets.Label;

import org.eclipse.swt.widgets.Sash;

import com.nokia.carbide.cpp.internal.pi.utils.PIUtilities;

import com.nokia.carbide.cpp.internal.pi.visual.PICompositePanel;

import com.nokia.carbide.cpp.internal.pi.visual.PIEvent;

import com.nokia.carbide.cpp.pi.editors.PIPageEditor;

public class ProfileVisualiser {

	// rather than abitrary topologies, we will support pages containing:

	//	only a top composite

	//  a top composite and a bottom composite separated by a sash

	public static final int TOP_ONLY       = 1;

	public static final int TOP_AND_BOTTOM = 2;

	private ProfileVisualiser thisVisualiser;

	// page for this visualiser

	private Composite page;

	// title

	private Label title;

	// secondary title

	private Label title2;

	// current time selection string

	private Label timeInterval;

	private static final String noInterval = Messages.getString("ProfileVisualiser.noInterval"); //$NON-NLS-1$

	public static final DecimalFormat timeFormat = new DecimalFormat(Messages.getString("ProfileVisualiser.decimalFormat")); //$NON-NLS-1$

	// composite at the top of the page

	private PICompositePanel topComposite;

	// composite at the bottom of the page (optional)

	private SashForm bottomComposite;

	private Component currentInfoComponent;

	private ParserRepository parserRepository;

	private String pageName = null;

	public boolean visualiserEnabled = true;

//	public ProfileVisualiser(int topology, Composite parent, AnalyseTab tab)

//	{

//		initialize(parent, tab, "");

//	}

	public ProfileVisualiser(int topology, Composite parent, String pageName)

	{

		this.thisVisualiser = this;

		this.pageName = pageName;

		this.page = new Composite(parent, SWT.NONE);

		initialize(topology, page);

	}

	private void initialize(int topology, Composite newPage)

	{

		// newPage (Composite)

		//		titleBar (Composite)

		//		holder   (Composite)

		FormData formData;

		if (   (topology != TOP_ONLY)

			&& (topology != TOP_AND_BOTTOM)) {

			return;

		}

		this.parserRepository = new ParserRepository();

		// add the title bar at the top

		Composite titleBar = addTitleBar(newPage);

		// all graphs and tables go into a composite below the title

		Composite holder = new Composite(newPage, SWT.NONE);

    	// FormData for the title bar

		formData = new FormData();

		formData.top    = new FormAttachment(0);

		formData.left   = new FormAttachment(0);

		formData.right  = new FormAttachment(100);

		titleBar.setLayoutData(formData);

		titleBar.setLayout(new FormLayout());

		// FormData for the overall holder composite

		formData = new FormData();

		formData.top    = new FormAttachment(titleBar);

		formData.bottom = new FormAttachment(100);

		formData.left   = new FormAttachment(0);

		formData.right  = new FormAttachment(100);

		holder.setLayoutData(formData);

		holder.setLayout(new FormLayout());

		newPage.setLayout(new FormLayout());

		setGraphsAndTablesHolder(holder, topology, formData);

	}

	private Composite addTitleBar(Composite newPage)

	{

		// titleBar (Composite)

		//		title2 (Label)  title (Label) timeInterval (Label)

		FormData formData;

		Composite titleBar = new Composite(newPage, SWT.NONE);

		title2 = new Label(titleBar, SWT.LEFT);

		title2.setBackground(newPage.getDisplay().getSystemColor(SWT.COLOR_YELLOW));

		title2.setFont(PIPageEditor.helvetica_9);

		title = new Label(titleBar, SWT.CENTER);

		title.setBackground(newPage.getDisplay().getSystemColor(SWT.COLOR_YELLOW));

		title.setFont(PIPageEditor.helvetica_9);

		timeInterval = new Label(titleBar, SWT.RIGHT);

		timeInterval.setBackground(newPage.getDisplay().getSystemColor(SWT.COLOR_YELLOW));

		timeInterval.setText(noInterval);

		timeInterval.setFont(PIPageEditor.helvetica_9);

		formData = new FormData();

		formData.left   = new FormAttachment(0);

		formData.right  = new FormAttachment(30);

		title2.setLayoutData(formData);

		formData = new FormData();

		formData.left   = new FormAttachment(30);

		formData.right  = new FormAttachment(70);

		title.setLayoutData(formData);

		formData = new FormData();

		formData.left   = new FormAttachment(70);

		formData.right  = new FormAttachment(100);

		timeInterval.setLayoutData(formData);

		return titleBar;

	}

	private void setGraphsAndTablesHolder(Composite holder, int topology, FormData formData)

	{

		// holder (Composite)

		//		topComposite (PICompositePanel/ScrolledComposite/SashForm)

		//		bottomComposite (SashForm)

		// create a top composite that can hold graphs and/or tables

		// NOTE: Sometimes we really only need a Composite(newPage, SWT.NONE)

		this.topComposite = new PICompositePanel(holder, thisVisualiser);

		if (topology == TOP_ONLY) {

			formData.left   = new FormAttachment(0);

			formData.right  = new FormAttachment(100);

			this.topComposite.getSashForm().setLayoutData(formData);

			this.topComposite.getSashForm().setLayout(new FormLayout());

			return;

		}

		// create a bottom composite only suitable for holding tables

		this.bottomComposite = new SashForm(holder, SWT.VERTICAL);

		// A sash separates top composite from bottom composite

		final Sash acrossSash = new Sash(holder, SWT.HORIZONTAL);

		// FormData for top

		formData = new FormData();

		formData.top    = new FormAttachment(0);

		formData.bottom = new FormAttachment(acrossSash);

		formData.left   = new FormAttachment(0);

		formData.right  = new FormAttachment(100);

		this.topComposite.getSashForm().setLayoutData(formData);

		this.topComposite.getSashForm().setLayout(new FormLayout());

		// FormData for bottom

		formData = new FormData();

		formData.top    = new FormAttachment(acrossSash);

		formData.bottom = new FormAttachment(100);

		formData.left   = new FormAttachment(0);

		formData.right  = new FormAttachment(100);

		bottomComposite.setLayoutData(formData);

		bottomComposite.setLayout(new FormLayout());

		// FormData for acrossSash

		// Put it initially in the middle

		formData = new FormData();

		formData.top    = new FormAttachment(50);

		formData.left   = new FormAttachment(0);

		formData.right  = new FormAttachment(100);

		acrossSash.setLayoutData(formData);

		final FormData acrossSashData = formData;

		final Composite parentFinal = acrossSash.getParent();

		acrossSash.addSelectionListener(new SelectionAdapter() {

			public void widgetSelected(SelectionEvent event) {

				if (event.detail != SWT.DRAG) {

					acrossSashData.top = new FormAttachment(0, event.y);

					parentFinal.layout();

				}

			}

		});

	}

	public void setTimeInterval(final double start, final double end)

	{

		Display.getDefault().syncExec(new Runnable() {

			public void run() {

				PIPageEditor.currentPageEditor().setLocalTime(start, end);

			}

		});

	}

	public void fetchSelection()

	{

		double start = this.topComposite.getSelectionStart() / 1000;

		double end =   this.topComposite.getSelectionEnd() / 1000;

		PIPageEditor.currentPageEditor().setLocalTime(start, end);

	}

	public String getPageName()

	{

		return this.pageName;

	}

	public void setPageName(String pageName)

	{

		this.pageName = pageName;

	}

	public void saveScreenshot() throws IOException

	{

	  	File filePath = null;

	  	try

		{

	  	    filePath = PIUtilities.getAFile(true, "jpg"); //$NON-NLS-1$

		}

	  	catch (Exception e)

		{

	  		return;

		}

	    if (filePath == null)

	    {

	      System.out.println(Messages.getString("ProfileVisualiser.noPath")); //$NON-NLS-1$

	      return;

	    }

	    System.out.println(Messages.getString("ProfileVisualiser.savingScreenshot")); //$NON-NLS-1$

	}

	public void saveListScreenshot() throws IOException

	{

	  	if (this.currentInfoComponent == null) return;

	   	File filePath = null;

	  	try

		{

	  	    filePath = PIUtilities.getAFile(true, "jpg"); //$NON-NLS-1$

		}

	  	catch (Exception e)

		{

	  		return;

		}

	    if (filePath == null)

	    {

	      System.out.println(Messages.getString("ProfileVisualiser.noPath")); //$NON-NLS-1$

	      return;

	    }

	    System.out.println(Messages.getString("ProfileVisualiser.savingScreenshot")); //$NON-NLS-1$

	}

	public void action(String actionString)

	{

		// if there is any action that is applicable for panel without

		// a graph put it here

		// below actions are only applicable for panels that have a graph

    	if (this.topComposite.getActiveGraph() == null)

    		return;

	    if (actionString.equals("screenshot")) //$NON-NLS-1$

	  	{

	  		try

			{

	  			this.saveScreenshot();

		    }

		    catch (Exception e)

		    {

		        e.printStackTrace();

		    }

	  	}

	  	else if (actionString.equals("listscreenshot")) //$NON-NLS-1$

	  	{

	  		try

		    {

		       this.saveListScreenshot();

		    }

		    catch (Exception e)

		    {

		        e.printStackTrace();

		    }

	  	}

	  	else if (actionString.equals("+")) //$NON-NLS-1$

	  	{

	  		this.topComposite.performZoomCommand("+"); //$NON-NLS-1$

	  	}

	  	else if (actionString.equals("-")) //$NON-NLS-1$

	  	{

	  		this.topComposite.performZoomCommand("-"); //$NON-NLS-1$

	  	}

	  	else if (actionString.equals("++")) //$NON-NLS-1$

	  	{

	  		this.topComposite.performZoomCommand("++"); //$NON-NLS-1$

	  	}

	  	else if (actionString.equals("--")) //$NON-NLS-1$

	  	{

	  		this.topComposite.performZoomCommand("--"); //$NON-NLS-1$

	  	}

		else if (actionString.equals("changeSelection")) //$NON-NLS-1$

	  	{

			// change the time interval selected

	  	    this.topComposite.selectionChanged();

	  	}		

	  	else if (actionString.equals("changeInterval")) //$NON-NLS-1$

	  	{

	  		// change the time interval displayed

        	double startTime = PIPageEditor.currentPageEditor().getStartTime();

        	double endTime   = PIPageEditor.currentPageEditor().getEndTime();

            if (startTime == -1 || endTime == -1)

            {

                this.timeInterval.setText(noInterval);

            }

            else

            {

            	this.timeInterval.setText(ProfileVisualiser.getTimeInterval(startTime, endTime));

            }

            // now the data are updated, let the zoomCommand of the panel 

            // handle the selection centering and refresh

            this.topComposite.performZoomCommand("changeInterval"); //$NON-NLS-1$

	  	}

	  	else if (actionString.equals("stretch")) //$NON-NLS-1$

	  	{

	  	}

		else if (actionString.equals("changeResolution")) //$NON-NLS-1$

		{

		}

		else if (actionString.equals("fetchSelection")) //$NON-NLS-1$

	  	{

	  	    this.fetchSelection();

	  	}

		else if (actionString.equals("changeThresholdThread")) //$NON-NLS-1$

		{

	        PIEvent be = new PIEvent(

	        		null, PIEvent.THRESHOLD_THREAD_CHANGED);

	        this.topComposite.piEventReceived(be); 

		}

		else if (actionString.equals("changeThresholdBinary")) //$NON-NLS-1$

		{

	        PIEvent be = new PIEvent(

	        		null, PIEvent.THRESHOLD_BINARY_CHANGED);

	        this.topComposite.piEventReceived(be); 

		}

		else if (actionString.equals("changeThresholdFunction")) //$NON-NLS-1$

		{

	        PIEvent be = new PIEvent(

	        		null, PIEvent.THRESHOLD_FUNCTION_CHANGED);

	        this.topComposite.piEventReceived(be); 

		}

	}

	public Composite getContentPane()

	{

		return this.page;

	}

	public ParserRepository getParserRepository()

	{

		return this.parserRepository;

	}

	public int getLastSampleX()

	{

		return this.topComposite.lastSampleX;

	}

	public void setLastSampleX(int aksa)

	{

	  	if (this.topComposite.lastSampleX < aksa)

	  		this.topComposite.lastSampleX = aksa;

	  	// do the set even if nothing has changed except that a new graph was added to the tab

  		this.topComposite.setSizeX(true);

	}

	public void vPanelRepaint(Component infoComponent)

	{

		//make this   

		if (infoComponent != null &&  infoComponent != this.currentInfoComponent)

		{

			this.currentInfoComponent = infoComponent;

		}

	}

	public SashForm getBottomComposite()

	{

		return this.bottomComposite;

	}

	public PICompositePanel getTopComposite()

	{

		return this.topComposite;

	}

	public Label getTitle()

	{

		return this.title;

	}

	public Label getTitle2()

	{

		return this.title2;

	}

	public Label getTimeString()

	{

		return this.timeInterval;

	}

	public static String getTimeInterval(double startTime, double endTime)

	{

		return Messages.getString("ProfileVisualiser.interval1") + timeFormat.format(startTime) //$NON-NLS-1$

		     + Messages.getString("ProfileVisualiser.interval2") + timeFormat.format(endTime) //$NON-NLS-1$

		     + Messages.getString("ProfileVisualiser.interval3") + timeFormat.format(endTime - startTime) //$NON-NLS-1$

		     + Messages.getString("ProfileVisualiser.interval4"); //$NON-NLS-1$

	}

}