/*

* Copyright (c) 2008 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.preferences;

import org.eclipse.jface.preference.IPreferenceStore;

import org.eclipse.jface.preference.PreferencePage;

import org.eclipse.swt.SWT;

import org.eclipse.swt.layout.GridLayout;

import org.eclipse.swt.layout.GridData;

import org.eclipse.swt.widgets.Composite;

import org.eclipse.swt.widgets.Control;

import org.eclipse.ui.IWorkbench;

import org.eclipse.ui.IWorkbenchPreferencePage;

import org.eclipse.ui.PlatformUI;

import org.eclipse.swt.widgets.Button;

import org.eclipse.swt.widgets.Group;

import com.nokia.s60tools.crashanalyser.plugin.*;

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

import com.nokia.s60tools.crashanalyser.model.*;

import org.eclipse.swt.events.*;

/**

 * Crash Analyser preferences page 

 *

 */

public class CrashAnalyserPreferences extends PreferencePage implements IWorkbenchPreferencePage, 

																		SelectionListener{

	private Button buttonListenTraceViewer;

	private Button buttonShowVisualizer;

	private Button buttonEpocwind;

	/**

	 * Constructor

	 */

	public CrashAnalyserPreferences() {

		super();

	}

	public void init(IWorkbench arg0) {

		// No implementation needed

	}

	@Override

	protected Control createContents(Composite parent) {

		Composite container = new Composite(parent, SWT.NULL);

		GridLayout gridLayout = new GridLayout();

		gridLayout.numColumns = 1;

		container.setLayout(gridLayout);

		Group emulatorGroup = new Group(container, SWT.NONE);

		emulatorGroup.setLayout(gridLayout);

		emulatorGroup.setText("WINSCW Emulator Support");

		emulatorGroup.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

		buttonEpocwind = new Button(emulatorGroup, SWT.CHECK);

		buttonEpocwind.setToolTipText("Automatically pick-up panics from epocwind.out while running the Emulator");

		buttonEpocwind.setText("Listen panics from epocwind.out");

		Group hardwareGroup = new Group(container, SWT.NONE);

		hardwareGroup.setLayout(gridLayout);		

		hardwareGroup.setText("Target Hardware Support");

		hardwareGroup.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

		buttonListenTraceViewer = new Button(hardwareGroup, SWT.CHECK);

		buttonListenTraceViewer.setToolTipText("Listens for MobileCrash files while tracing e.g. with Profiler Activator or Trace Viewer.");

		buttonListenTraceViewer.setText("Listen MobileCrash panics via TraceViewer");

		buttonListenTraceViewer.addSelectionListener(this);

		buttonShowVisualizer = new Button(hardwareGroup, SWT.CHECK);

		buttonShowVisualizer.setToolTipText("When a MobileCrash panic is read via TraceViewer, automatically show panic data");

		buttonShowVisualizer.setText("Show Crash Visualiser when crash occurs");

		GridData gd = new GridData();

		gd.horizontalIndent = 20;

		buttonShowVisualizer.setLayoutData(gd);

		if (!TraceListener.traceProviderAvailable())

			hardwareGroup.setVisible(false);

		getPrefsStoreValues();

		setHelps();

		return container;

	}

	private void getPrefsStoreValues(){

		IPreferenceStore store = CrashAnalyserPlugin.getCrashAnalyserPrefsStore();

		boolean listener = store.getBoolean(CrashAnalyserPreferenceConstants.TRACE_LISTENER);

		buttonListenTraceViewer.setSelection(listener);

		boolean epocwind = store.getBoolean(CrashAnalyserPreferenceConstants.EPOCWIND_LISTENER);

		buttonEpocwind.setSelection(epocwind);

		boolean showVisualizer = store.getBoolean(CrashAnalyserPreferenceConstants.SHOW_VISUALIZER);

		buttonShowVisualizer.setSelection(showVisualizer);

		buttonShowVisualizer.setEnabled(listener);

	}

	@Override

	protected void performDefaults() {

		buttonListenTraceViewer.setSelection(true);

		buttonShowVisualizer.setSelection(true);

		buttonShowVisualizer.setEnabled(true);

		buttonEpocwind.setSelection(false);

		super.performDefaults();

	}

	@Override

	public boolean performOk() {

		IPreferenceStore store = CrashAnalyserPlugin.getCrashAnalyserPrefsStore();

		store.setValue(CrashAnalyserPreferenceConstants.TRACE_LISTENER, buttonListenTraceViewer.getSelection());

		store.setValue(CrashAnalyserPreferenceConstants.EPOCWIND_LISTENER, buttonEpocwind.getSelection());

		store.setValue(CrashAnalyserPreferenceConstants.SHOW_VISUALIZER, buttonShowVisualizer.getSelection());

		CrashAnalyserPlugin.startEmulatorListener();

		CrashAnalyserPlugin.startTraceListener();

		return super.performOk();

	}

	public void widgetDefaultSelected(SelectionEvent arg0) {

		// No implementation needed

	}

	public void widgetSelected(SelectionEvent event) {

		if (buttonListenTraceViewer.getSelection()) {

			buttonShowVisualizer.setEnabled(true);

		} else {

			buttonShowVisualizer.setEnabled(false);

			buttonShowVisualizer.setSelection(false);

		}

	}	

	public static boolean traceListenerOn() {

		IPreferenceStore store = CrashAnalyserPlugin.getCrashAnalyserPrefsStore();

		return store.getBoolean(CrashAnalyserPreferenceConstants.TRACE_LISTENER);

	}

	public static boolean epocwindListenerOn() {

		IPreferenceStore store = CrashAnalyserPlugin.getCrashAnalyserPrefsStore();

		return store.getBoolean(CrashAnalyserPreferenceConstants.EPOCWIND_LISTENER);

	}

	public static boolean showVisualizer() {

		IPreferenceStore store = CrashAnalyserPlugin.getCrashAnalyserPrefsStore();

		return store.getBoolean(CrashAnalyserPreferenceConstants.SHOW_VISUALIZER);

	}

	/**

	 * Sets this page's context sensitive helps

	 *

	 */

	protected void setHelps() {

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

				HelpContextIDs.CRASH_ANALYSER_HELP_PREFERENCES);

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

				HelpContextIDs.CRASH_ANALYSER_HELP_PREFERENCES);

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

				HelpContextIDs.CRASH_ANALYSER_HELP_PREFERENCES);

	}	

}