uk.ac.diamond.scisoft.ncd.rcp.handlers.NcdDataReductionWizardHandler.java Source code

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Here is the source code for uk.ac.diamond.scisoft.ncd.rcp.handlers.NcdDataReductionWizardHandler.java

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/*
 * Copyright 2013 Diamond Light Source Ltd.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package uk.ac.diamond.scisoft.ncd.rcp.handlers;

import java.util.Map;

import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.wizard.WizardDialog;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.handlers.IHandlerService;
import org.eclipse.ui.navigator.resources.ProjectExplorer;
import org.eclipse.ui.services.ISourceProviderService;
import org.eclipse.ui.statushandlers.StatusManager;

import uk.ac.diamond.scisoft.ncd.core.data.NcdDetectorSettings;
import uk.ac.diamond.scisoft.ncd.core.rcp.NcdCalibrationSourceProvider;
import uk.ac.diamond.scisoft.ncd.rcp.Activator;
import uk.ac.diamond.scisoft.ncd.rcp.wizards.NcdDataReductionWizard;

public class NcdDataReductionWizardHandler extends AbstractHandler {

    @Override
    public Object execute(ExecutionEvent event) throws ExecutionException {
        IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
        IWorkbenchPage page = window.getActivePage();
        IStructuredSelection sel = (IStructuredSelection) page.getSelection(ProjectExplorer.VIEW_ID);
        if (sel == null || sel.isEmpty()) {
            sel = (IStructuredSelection) page.getSelection(Activator.FILEVIEW_ID);
        }
        if (sel == null || sel.isEmpty()) {
            String msg = "Please select NeXus files to process in Project Explorer view before starting NCD Data Reduction Wizard.";
            Status status = new Status(IStatus.CANCEL, Activator.PLUGIN_ID, msg);
            StatusManager.getManager().handle(status, StatusManager.BLOCK | StatusManager.SHOW);
            return null;
        }

        ISourceProviderService service = (ISourceProviderService) window.getService(ISourceProviderService.class);
        NcdCalibrationSourceProvider ncdDetectorSourceProvider = (NcdCalibrationSourceProvider) service
                .getSourceProvider(NcdCalibrationSourceProvider.NCDDETECTORS_STATE);
        Map<String, NcdDetectorSettings> ncdDetectors = ncdDetectorSourceProvider.getNcdDetectors();
        if (ncdDetectors == null || ncdDetectors.isEmpty()) {
            // run the detector information command
            IHandlerService handlerService = (IHandlerService) window.getService(IHandlerService.class);
            try {
                handlerService.executeCommand("uk.ac.diamond.scisoft.ncd.rcp.readDetectorInfo", null);
            } catch (Exception ex) {
                MessageDialog dialog = new MessageDialog(window.getShell(), "Error", null, "Error:" + ex.toString(),
                        MessageDialog.ERROR, new String[] { "OK" }, 0);
                dialog.open();
            }
        }

        WizardDialog wizardDialog = new WizardDialog(Display.getDefault().getActiveShell(),
                new NcdDataReductionWizard());
        wizardDialog.open();

        return null;
    }

}