ProjectSelectionDialog.java

/*******************************************************************************
* Copyright (c) 2016 ARM Ltd. and others
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
* Anton Leherbauer (Wind River Systems)
* ARM Ltd and ARM Germany GmbH - application-specific implementation
*******************************************************************************/

package com.arm.cmsis.pack.project.wizards;

import java.util.Set;

import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.DoubleClickEvent;
import org.eclipse.jface.viewers.IDoubleClickListener;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.dialogs.SelectionStatusDialog;

import com.arm.cmsis.pack.common.CmsisConstants;
import com.arm.cmsis.pack.project.CpProjectPlugIn;
import com.arm.cmsis.pack.project.IRteProject;
import com.arm.cmsis.pack.project.Messages;

/**
 * Dialog for project selection
 */
public class ProjectSelectionDialog extends SelectionStatusDialog {
	private TableViewer fTableViewer;
	Set<IRteProject> fProjectsWithSpecifics;

	// sizing constants
	private final static int SIZING_SELECTION_WIDGET_HEIGHT = 250;
	private final static int SIZING_SELECTION_WIDGET_WIDTH = 300;

	public ProjectSelectionDialog(Shell parentShell, Set<IRteProject> projectsWithSpecifics) {
		super(parentShell);
		setTitle(Messages.ProjectSelectionDialog_RteProjectSelectionDialog); 
		fProjectsWithSpecifics = projectsWithSpecifics;
		if (fProjectsWithSpecifics == null || fProjectsWithSpecifics.isEmpty()) {
			setMessage(Messages.ProjectSelectionDialog_NoRteProjectFound); 
		} else {
			setMessage(Messages.ProjectSelectionDialog_SelectRteProject); 
		}
	}

	@Override
	protected Control createDialogArea(Composite parent) {
		// page group
		Composite composite = (Composite) super.createDialogArea(parent);

		createMessageArea(composite);

		fTableViewer = new TableViewer(composite, SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER);
		fTableViewer.addSelectionChangedListener(new ISelectionChangedListener() {
			@Override
			public void selectionChanged(SelectionChangedEvent event) {
				doSelectionChanged(((IStructuredSelection) event.getSelection()).toArray());
			}
		});
		fTableViewer.addDoubleClickListener(new IDoubleClickListener() {
			@SuppressWarnings("synthetic-access")
			@Override
			public void doubleClick(DoubleClickEvent event) {
                okPressed();
			}
		});
		GridData data = new GridData(SWT.FILL, SWT.FILL, true, true);
		data.heightHint = SIZING_SELECTION_WIDGET_HEIGHT;
		data.widthHint = SIZING_SELECTION_WIDGET_WIDTH;
		fTableViewer.getTable().setLayoutData(data);

		fTableViewer.setContentProvider(ArrayContentProvider.getInstance());
		fTableViewer.setLabelProvider(new LabelProvider() {
			@Override
			public String getText(Object element) {
				IRteProject project = (IRteProject) element;
				if (project != null) {
					return project.getName();
				}
				return null;
			}

			@Override
			public Image getImage(Object element) {
				IRteProject project = (IRteProject) element;
				if (project != null) {
					return PlatformUI.getWorkbench().getSharedImages()
							.getImage(org.eclipse.ui.ide.IDE.SharedImages.IMG_OBJ_PROJECT);
				}
				return null;
			}
		});

		fTableViewer.setInput(fProjectsWithSpecifics);
		doSelectionChanged(new Object[0]);
		return composite;
	}
	
	void doSelectionChanged(Object[] objects) {
		if (objects.length != 1) {
			updateStatus(new Status(IStatus.ERROR, CpProjectPlugIn.PLUGIN_ID, CmsisConstants.EMPTY_STRING));
			setSelectionResult(null);
		} else {
			updateStatus(new Status(IStatus.OK, CpProjectPlugIn.PLUGIN_ID, CmsisConstants.EMPTY_STRING));
			setSelectionResult(objects);
		}
	}

	@Override
	protected void computeResult() {
		// does nothing
	}

}