/*

* 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 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.remoteconnections.wizard;

import com.nokia.carbide.remoteconnections.RemoteConnectionsActivator;

import com.nokia.carbide.remoteconnections.Messages;

import com.nokia.carbide.remoteconnections.interfaces.IConnection;

import org.eclipse.jface.resource.ImageDescriptor;

import org.eclipse.jface.viewers.*;

import org.eclipse.jface.wizard.WizardPage;

import org.eclipse.swt.SWT;

import org.eclipse.swt.events.ModifyEvent;

import org.eclipse.swt.events.ModifyListener;

import org.eclipse.swt.graphics.Image;

import org.eclipse.swt.layout.GridData;

import org.eclipse.swt.layout.GridLayout;

import org.eclipse.swt.widgets.*;

import java.util.ArrayList;

import java.util.List;

/**

 * Abstract superclass of import and export page

 */

public abstract class AbstractImportExportPage extends WizardPage {

	protected List<IConnection> connections;

	protected Text pathText;

	protected Button browseButton;

	protected CheckboxTableViewer viewer;

	protected static final ImageDescriptor CONNECTION_IMGDESC = 

		RemoteConnectionsActivator.getImageDescriptor("icons/connection.png"); //$NON-NLS-1$

	protected static final Image CONNECTION_IMG = CONNECTION_IMGDESC.createImage();

	private static final String UID = ".uid"; //$NON-NLS-1$

	public AbstractImportExportPage(String pageName) {

		super(pageName);

	}

	public void createControl(Composite parent) {

        initializeDialogUnits(parent);

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

        composite.setLayout(new GridLayout());

        composite.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_FILL

                | GridData.HORIZONTAL_ALIGN_FILL));

        composite.setSize(composite.computeSize(SWT.DEFAULT, SWT.DEFAULT));

        composite.setFont(parent.getFont());

        composite.setData(UID, "ImportExportPage"); //$NON-NLS-1$

        setControl(composite);

	}

	protected void createBrowseGroup(Composite parent, String labelText) {

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

	    GridLayout layout = new GridLayout();

	    layout.numColumns = 3;

	    composite.setLayout(layout);

	    composite.setFont(parent.getFont());

	    composite.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.GRAB_HORIZONTAL));

	    Label label = new Label(composite, SWT.NONE);

	    label.setText(labelText);

	    label.setFont(parent.getFont());

	    pathText = new Text(composite, SWT.BORDER);

	    GridData data = new GridData(GridData.HORIZONTAL_ALIGN_FILL

	            | GridData.GRAB_HORIZONTAL);

	    data.widthHint = 250;

	    pathText.setLayoutData(data);

	    pathText.setFont(parent.getFont());

	    pathText.addModifyListener(new ModifyListener() {

			public void modifyText(ModifyEvent e) {

				setPageComplete(validatePage(true));

			}

	    });

	    pathText.setData(UID, "pathText"); //$NON-NLS-1$

	    browseButton = new Button(composite, SWT.PUSH);

	    browseButton.setText(Messages.getString("AbstractImportExportPage.BrowseButtonLabel")); //$NON-NLS-1$

	    browseButton.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL));

	    browseButton.setFont(parent.getFont());

	    browseButton.setData(UID, "browseButton"); //$NON-NLS-1$

	    setButtonLayoutData(browseButton);

	}

	protected void createViewerGroup(Composite parent, String labelText) {

		Label label = new Label(parent, SWT.NONE);

		label.setText(labelText);

		viewer = CheckboxTableViewer.newCheckList(parent, SWT.BORDER);

		TableViewerColumn connectionColumn = new TableViewerColumn(viewer, SWT.CENTER);

		connectionColumn.getColumn().setText(Messages.getString("AbstractImportExportPage.ConnectionColumnLabel")); //$NON-NLS-1$

		connectionColumn.setLabelProvider(new ColumnLabelProvider() {

			@Override

			public Image getImage(Object element) {

				return CONNECTION_IMG;

			}

			@Override

			public String getText(Object element) {

				return ((IConnection) element).getDisplayName();

			}

		});

		TableViewerColumn typeColumn = new TableViewerColumn(viewer, SWT.CENTER);

		typeColumn.getColumn().setText(Messages.getString("AbstractImportExportPage.TypeColumnLabel")); //$NON-NLS-1$

		typeColumn.setLabelProvider(new ColumnLabelProvider() {

			@Override

			public String getText(Object element) {

				return ((IConnection) element).getConnectionType().getDisplayName();

			}

		});

		viewer.getControl().setLayoutData(

				new GridData(GridData.FILL_BOTH | GridData.GRAB_HORIZONTAL | GridData.GRAB_VERTICAL));

		viewer.setContentProvider(new ArrayContentProvider());

		viewer.getTable().setHeaderVisible(true);

		viewer.getControl().setData(UID, "viewer"); //$NON-NLS-1$

//		Composite buttonComposite = new Composite(parent, SWT.NONE);

//		buttonComposite.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_END));

//		buttonComposite.setLayout(new GridLayout());

//		Button checkAllButton = new Button(buttonComposite, SWT.PUSH);

//		checkAllButton.setText("Check All");

//		setButtonLayoutData(checkAllButton);

//		Button checkNoneButton = new Button(buttonComposite, SWT.PUSH);

//		checkNoneButton.setText("Uncheck All");

//		setButtonLayoutData(checkNoneButton);

	}

	protected abstract boolean validatePage(boolean validateFile);

	public List<IConnection> getSelectedConnections() {

		List<IConnection> selectedConnections = new ArrayList<IConnection>();

		for (IConnection connection : connections) {

			if (viewer.getChecked(connection))

				selectedConnections.add(connection);

		}

		return selectedConnections;

	}

}