/*

* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "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.s60tools.crashanalyser.ui.editors;

import java.util.List;

import org.eclipse.jface.resource.FontRegistry;

import org.eclipse.swt.SWT;

import org.eclipse.swt.custom.SashForm;

import org.eclipse.swt.graphics.FontData;

import org.eclipse.swt.layout.GridData;

import org.eclipse.swt.layout.GridLayout;

import org.eclipse.swt.widgets.Composite;

import org.eclipse.swt.widgets.Display;

import org.eclipse.swt.widgets.Group;

import org.eclipse.swt.widgets.Table;

import org.eclipse.swt.widgets.TableItem;

import org.eclipse.ui.PlatformUI;

import com.nokia.s60tools.crashanalyser.containers.CodeSegment;

import com.nokia.s60tools.crashanalyser.containers.Process;

//import com.nokia.s60tools.crashanalyser.containers.Thread;

import com.nokia.s60tools.crashanalyser.files.CrashFile;

import com.nokia.s60tools.crashanalyser.files.SummaryFile;

import com.nokia.s60tools.crashanalyser.resources.HelpContextIDs;

import com.nokia.s60tools.crashanalyser.ui.viewers.CodeSegmentsTableViewer;

public class CodesegmentsPage {

	// code segments group UI items

	Table tableCodeSegments;

	CodeSegmentsTableViewer tableViewerCodeSegments;

	FontRegistry fontRegistry;

	SummaryFile crashFile;

	Process selectedProcess = null;

//	Thread selectedThread = null;

	/**

	 * Creates the page

	 * @param parent composite

	 * @param file summary file

	 * @return composite

	 */

	public Composite createPage(Composite parent, SummaryFile file) {

		crashFile = file;

		return doCreatePage(parent);

	}

	/**

	 * Creates the page

	 * @param parent composite

	 * @return composite

	 */

	public Composite createPage(Composite parent) {

		return doCreatePage(parent);

	}

	/**

	 * Loads data from given file into UI elements.

	 * @param file crash file

	 */

	public void setFile(CrashFile file) {

		if (file != null) {

			crashFile = file;

//			initialUserRegistersTableLoad();

			loadCodeSegmentsTable();

//			loadEventLogTable();

//			initialCpsrDetailsTableLoad();

		}

	}

	/**

	 * Creates all UI elements to the page

	 * @param parent

	 * @return composite

	 */

	Composite doCreatePage(Composite parent) {

		GridLayout layout = new GridLayout();

		layout.numColumns = 1;

		parent.setLayout(layout);

		parent.setLayoutData(new GridData(GridData.FILL_BOTH));

		fontRegistry = new FontRegistry(Display.getCurrent());

		fontRegistry.put("monospace", new FontData[]{new FontData("Courier", 8, SWT.NORMAL)});

		SashForm sashFormMain = new SashForm(parent, SWT.VERTICAL);

		sashFormMain.setLayoutData(new GridData(GridData.FILL_BOTH));

		createCodeSegmentsGroup(sashFormMain);

		/*

		SashForm sashFormTop = new SashForm(sashFormMain, SWT.HORIZONTAL);

		createRegistersGroup(sashFormTop);

		createCodeSegmentsGroup(sashFormTop);

		SashForm sashFormBottom = new SashForm(sashFormMain, SWT.HORIZONTAL);

		createEventLogGroup(sashFormBottom);

		createCpsrDetailsGroup(sashFormBottom);

		sashFormTop.setWeights(new int[]{3,2});

		sashFormBottom.setWeights(new int[]{3,7});

			*/

		setHelps();

		return parent;

	}

	/**

	 * Creates code segments group

	 * @param parent

	 */

	void createCodeSegmentsGroup(Composite parent) {

		Group groupCodeSegments = new Group(parent, SWT.NONE);

		GridLayout layout = new GridLayout();

		layout.numColumns = 1;

		groupCodeSegments.setLayout(layout);

		groupCodeSegments.setText("Code Segments");

		GridData groupGD = new GridData();

		groupCodeSegments.setLayoutData(groupGD);

		tableCodeSegments = new Table(groupCodeSegments, SWT.BORDER);

		tableCodeSegments.setHeaderVisible(true);

		GridData tableGd = new GridData(GridData.FILL_BOTH);

		tableCodeSegments.setLayoutData(tableGd);

		tableViewerCodeSegments = new CodeSegmentsTableViewer(tableCodeSegments);

		tableCodeSegments.setFont(fontRegistry.get("monospace"));

		loadCodeSegmentsTable();

		AutoSizeTableCells(tableCodeSegments);

	}

	/**

	 * Loads code segments to table

	 */

	void loadCodeSegmentsTable() {

		if (crashFile == null) {

			return;

		}

		if (crashFile.getThread() != null) {

			selectedProcess = crashFile.getProcessByThread(crashFile.getThread().getId());

		} else {

			selectedProcess = crashFile.getCrashedProcess();

		}

		if (selectedProcess == null)

			return;

		List<CodeSegment> codeSegments = selectedProcess.getCodeSegments();

		if (codeSegments != null && !codeSegments.isEmpty()) {

			for (int i = 0; i < codeSegments.size(); i++) {

				CodeSegment codeSegment = codeSegments.get(i);

				newCodeSegmentsTableItem(codeSegment);

			}

		}

		AutoSizeTableCells(tableCodeSegments);

	}

	/**

	 * Adds a new table row for code segments table

	 * @param codeSegment

	 */

	void newCodeSegmentsTableItem(CodeSegment codeSegment) {

		TableItem item = new TableItem(tableCodeSegments, SWT.NONE);

		String segmentRange = codeSegment.getSegmentRange();

		String base = "";

		String top = "";

		try {

			// segment range is of format: XXXXX-YYYYY, parse this to XXXXX and YYYYY

			if (segmentRange.contains("-")) {

				top = segmentRange.substring(segmentRange.indexOf('-')+1);

				base = segmentRange.substring(0, segmentRange.indexOf('-'));

			}

		} catch (Exception e) {

			e.printStackTrace();

		}

		item.setText(new String[] {base, top, codeSegment.getSegmentName()});

		// code segment should be highlighted if there was some problem with the code section

		// while creating data

		if (codeSegment.shouldBeHighlighted()) {

			item.setForeground(Display.getCurrent().getSystemColor(SWT.COLOR_MAGENTA));

		}

		item.setData(codeSegment);

	}

	/**

	 * Packs all columns for given table

	 * @param table table which columns are to be packed

	 */

	void AutoSizeTableCells(Table table) {

		for (int i = 0; i < table.getColumnCount(); i++) {

			table.getColumn(i).pack();

		}

	}

	/**

	 * Sets context sensitive help ids to UI elements

	 */

	void setHelps() {

		PlatformUI.getWorkbench().getHelpSystem().setHelp(tableCodeSegments,

				HelpContextIDs.CRASH_ANALYSER_HELP_CRASH_VISUALISER);	

/*

		PlatformUI.getWorkbench().getHelpSystem().setHelp(tableCpsrDetails,

				HelpContextIDs.CRASH_ANALYSER_HELP_CRASH_VISUALISER);	

		PlatformUI.getWorkbench().getHelpSystem().setHelp(tableEventLog,

				HelpContextIDs.CRASH_ANALYSER_HELP_CRASH_VISUALISER);	

		PlatformUI.getWorkbench().getHelpSystem().setHelp(tableRegisters,

				HelpContextIDs.CRASH_ANALYSER_HELP_CRASH_VISUALISER);	

		PlatformUI.getWorkbench().getHelpSystem().setHelp(tableEventLog,

				HelpContextIDs.CRASH_ANALYSER_HELP_CRASH_VISUALISER);	

		PlatformUI.getWorkbench().getHelpSystem().setHelp(tableRegisters,

				HelpContextIDs.CRASH_ANALYSER_HELP_CRASH_VISUALISER);	

		PlatformUI.getWorkbench().getHelpSystem().setHelp(comboCpsrDetails,

				HelpContextIDs.CRASH_ANALYSER_HELP_CRASH_VISUALISER);	

		PlatformUI.getWorkbench().getHelpSystem().setHelp(comboRegisters,

				HelpContextIDs.CRASH_ANALYSER_HELP_CRASH_VISUALISER);	

	*/

	}

}