org.mwc.cmap.core.wizards.NaturalEarthWizardPage.java Source code

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Here is the source code for org.mwc.cmap.core.wizards.NaturalEarthWizardPage.java

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/*
 *    Debrief - the Open Source Maritime Analysis Application
 *    http://debrief.info
 *
 *    (C) 2000-2014, PlanetMayo Ltd
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the Eclipse Public License v1.0
 *    (http://www.eclipse.org/legal/epl-v10.html)
 *
 *    This library is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
 */
package org.mwc.cmap.core.wizards;

import java.beans.PropertyDescriptor;
import java.io.File;
import java.net.URL;

import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Platform;
import org.eclipse.jface.preference.PreferenceDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Link;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.browser.IWebBrowser;
import org.eclipse.ui.browser.IWorkbenchBrowserSupport;
import org.eclipse.ui.dialogs.PreferencesUtil;
import org.eclipse.ui.handlers.IHandlerService;
import org.mwc.cmap.core.CorePlugin;

import MWC.GUI.Editable;

/**
 * The "New" wizard page allows setting the container for the new file as well
 * as the file name. The page will only accept file name without the extension
 * OR with the extension that matches the expected one (xml).
 */

public class NaturalEarthWizardPage extends CoreEditableWizardPage {

    /**
     * Constructor for SampleNewWizardPage.
     * 
     * @param pageName
     */
    public NaturalEarthWizardPage(final ISelection selection) {
        super(selection, "nePage", "Add Vectored background data",
                "Use this page to add the Natural Earth dataset to your plot.", "images/ne_wizard.png", null);
    }

    @Override
    protected Editable createMe() {
        if (_editable == null) {
            IHandlerService handlerService = getHandlerService();
            if (handlerService == null) {
                CorePlugin.logError(IStatus.WARNING, "IHandlerService is null", null);
                return null;
            }
            try {
                _editable = (Editable) handlerService.executeCommand("org.mwc.cmap.naturalearth.ui.CreateNELayer",
                        null);
            } catch (Exception ex) {
                CorePlugin.logError(IStatus.WARNING, "org.mwc.cmap.naturalearth.ui.CreateNELayer not found", null);
                return null;
            }
        }
        return _editable;
    }

    private IHandlerService getHandlerService() {
        return (IHandlerService) PlatformUI.getWorkbench().getService(IHandlerService.class);
    }

    /**
     * @return
     */
    @Override
    protected PropertyDescriptor[] getPropertyDescriptors() {
        return new PropertyDescriptor[0];
    }

    @Override
    protected void addComponents(Composite container) {
        Link link1 = new Link(container, SWT.NONE);
        GridData gd = new GridData(SWT.FILL, SWT.FILL, true, false);
        gd.horizontalSpan = 3;
        link1.setLayoutData(gd);
        link1.setText(
                "Natural Earth data trimmed to suit Debrief's Mercator projection is available online from here:\n"
                        + "<a>https://github.com/debrief/NaturalEarth</a>");
        link1.addSelectionListener(new SelectionAdapter() {
            @Override
            public void widgetSelected(SelectionEvent event) {
                try {
                    IWorkbenchBrowserSupport support = PlatformUI.getWorkbench().getBrowserSupport();
                    IWebBrowser browser = support.getExternalBrowser();
                    browser.openURL(new URL("https://github.com/debrief/NaturalEarth"));
                } catch (Exception e) {
                    CorePlugin.logError(IStatus.WARNING, "Cannot open an external browser", e);
                }
            }
        });
        String path = getDataFolder();
        if (path == null || path.isEmpty() || !(new File(path).isDirectory())) {
            final Link link = new Link(container, SWT.BORDER);
            gd = new GridData(SWT.FILL, SWT.FILL, true, false);
            gd.horizontalSpan = 3;
            link.setLayoutData(gd);
            link.setText("Natural Earth data folder isn't set. Debrief will use the default folder.\n"
                    + "You can set a data folder by clicking <a>Window>Preferences>Maritime analysis>Natural Earth</a>.");
            link.addSelectionListener(new SelectionAdapter() {
                @Override
                public void widgetSelected(SelectionEvent event) {
                    PreferenceDialog dialog = PreferencesUtil.createPreferenceDialogOn(link.getShell(),
                            "org.mwc.cmap.naturalearth.preferences.NaturalEarhPrefs", null, null);
                    dialog.open();
                }
            });
        }
    }

    private String getDataFolder() {
        return Platform.getPreferencesService().getString("org.mwc.cmap.NaturalEarth", "dataFolder", null, null);
    }

}