/*

 * 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.button.ui;

import java.util.ArrayList;

import java.util.HashSet;

import java.util.Set;

import org.eclipse.jface.dialogs.IDialogConstants;

import org.eclipse.jface.dialogs.TitleAreaDialog;

import org.eclipse.jface.layout.GridDataFactory;

import org.eclipse.jface.layout.GridLayoutFactory;

import org.eclipse.jface.viewers.ISelectionChangedListener;

import org.eclipse.jface.viewers.SelectionChangedEvent;

import org.eclipse.swt.SWT;

import org.eclipse.swt.events.SelectionEvent;

import org.eclipse.swt.events.SelectionListener;

import org.eclipse.swt.widgets.Button;

import org.eclipse.swt.widgets.Composite;

import org.eclipse.swt.widgets.Control;

import org.eclipse.swt.widgets.Label;

import org.eclipse.swt.widgets.Shell;

import org.eclipse.swt.widgets.Text;

import org.eclipse.ui.PlatformUI;

import com.nokia.carbide.cpp.pi.button.ComNokiaCarbidePiButtonHelpIDs;

import com.nokia.carbide.cpp.pi.button.IBupEventMapProfile;

import com.nokia.carbide.cpp.sdk.core.ISymbianSDK;

import com.nokia.carbide.cpp.sdk.core.SDKCorePlugin;

public class SwitchBupMapDialog extends TitleAreaDialog {

	private IBupEventMapProfile oldProfile;

	private IBupEventMapProfile newProfile;

	private boolean resetAll;

	// control

	private Composite composite = null;

	private BupProfileTreeViewer profileTreeViewer = null;

	private Composite currentProfileComposite = null;

	private Label currentProfileLabel = null;

	private Text currenProfileText = null;

	private Button resetAllKeysButton = null;

	public SwitchBupMapDialog (Shell parentShell, IBupEventMapProfile formerProfile) {

		super(parentShell);

		oldProfile = formerProfile;

	}

	public Control createDialogArea(Composite parent) {

		composite = new Composite(parent, SWT.NONE);

		PlatformUI.getWorkbench().getHelpSystem().setHelp(composite, ComNokiaCarbidePiButtonHelpIDs.PI_KEY_MAP_SWITCH_DIALOG);

		getShell().setText(Messages.getString("SwitchBupMapDialog.switchKeyPressProfile")); //$NON-NLS-1$

		setTitle(Messages.getString("SwitchBupMapDialog.remapMessage")); //$NON-NLS-1$

		GridLayoutFactory layoutExpandBoth = GridLayoutFactory.fillDefaults();

		GridDataFactory gridDataExpandBoth = GridDataFactory.fillDefaults().grab(true, true);

		layoutExpandBoth.applyTo(composite);

		gridDataExpandBoth.applyTo(composite);

		profileTreeViewer = new BupProfileTreeViewer(composite);

		gridDataExpandBoth.applyTo(profileTreeViewer.getTree());

		profileTreeViewer.addPostSelectionChangedListener(new ISelectionChangedListener() {

			public void selectionChanged(SelectionChangedEvent arg0) {

				validatePage();

			}

		});

		currentProfileComposite = new Composite(composite, SWT.NONE);

		layoutExpandBoth.copy().numColumns(2).applyTo(currentProfileComposite);

		gridDataExpandBoth.applyTo(currentProfileComposite);

		currentProfileLabel = new Label(currentProfileComposite, SWT.NONE);

		currentProfileLabel.setText(Messages.getString("SwitchBupMapDialog.currentProfile")); //$NON-NLS-1$

		currenProfileText = new Text(currentProfileComposite, SWT.READ_ONLY);

		resetAllKeysButton = new Button(composite, SWT.CHECK);

		resetAllKeysButton.setText(Messages.getString("SwitchBupMapDialog.overwriteAllEventsWithDefault")); //$NON-NLS-1$

		resetAllKeysButton.addSelectionListener(new SelectionListener() {

			public void widgetDefaultSelected(SelectionEvent arg0) {

			}

			public void widgetSelected(SelectionEvent arg0) {

				resetAll = resetAllKeysButton.getSelection();

			}

		});

		buildBupMapProfileList();

		resetAllKeysButton.setSelection(true);

		resetAllKeysButton.setEnabled(false);

		currenProfileText.setText(Messages.getString("SwitchBupMapDialog.none")); //$NON-NLS-1$

		if (oldProfile != null) {

			resetAllKeysButton.setSelection(false);

			resetAllKeysButton.setEnabled(true);

			currenProfileText.setText(oldProfile.toString());

		}

		return composite;

	}

	/**

	 * 

	 */

	protected void validatePage() {

		Button buttonSwitch = getButton(IDialogConstants.OK_ID);

		if ((newProfile = profileTreeViewer.getSelectedProfile()) == null) {

			buttonSwitch.setEnabled(false);

		} else {

			buttonSwitch.setEnabled(true);

		}

	}

	private void buildBupMapProfileList() {

		Set<ISymbianSDK> sdks = new HashSet<ISymbianSDK>();

		sdks.addAll(SDKCorePlugin.getSDKManager().getSDKList());

		BupProfileTreeViewer.BupProfileTreeData data = profileTreeViewer.new BupProfileTreeData(null, sdks);

		profileTreeViewer.setInput(data);

		profileTreeViewer.expandAll();

	}

	ArrayList<Integer> allId = new ArrayList<Integer>();

	protected Button createButton(Composite parent, int id, String label, boolean defaultButton) {

		Button result = super.createButton(parent, id, label, defaultButton);

		if (id == IDialogConstants.OK_ID) {

			result.setText(Messages.getString("SwitchBupMapDialog.switchToNewProfile")); //$NON-NLS-1$

		}

		allId.add(id);

		return result;

	}

	protected void createButtonsForButtonBar(Composite parent) {

		super.createButtonsForButtonBar(parent);

		GridDataFactory gridDataButton = GridDataFactory.swtDefaults();

		int maxWidth = 0;

		for (Integer id : allId) {

			Button button = getButton(id);

			maxWidth = Math.max(maxWidth, button.computeSize(SWT.DEFAULT, SWT.DEFAULT).x);

		}

		for (Integer id : allId) {

			Button button = getButton(id);

			gridDataButton.hint(maxWidth, button.computeSize(SWT.DEFAULT, SWT.DEFAULT).y).applyTo(button);

		}

		// now buttons are there, we can  disable key

		getButton(IDialogConstants.OK_ID).setEnabled(false);

	}

	public boolean resetAll() {

		return resetAll;

	}

	public IBupEventMapProfile getNewProfile() {

		return newProfile;

	}

}