org.eclipse.emf.cdo.internal.ui.dialogs.SelectPackageDialog.java Source code

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Here is the source code for org.eclipse.emf.cdo.internal.ui.dialogs.SelectPackageDialog.java

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/***************************************************************************
 * Copyright (c) 2004 - 2008 Eike Stepper, Germany.
 * 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:
 *    Eike Stepper - initial API and implementation
 **************************************************************************/
package org.eclipse.emf.cdo.internal.ui.dialogs;

import org.eclipse.emf.cdo.internal.ui.SharedIcons;
import org.eclipse.emf.cdo.internal.ui.bundle.OM;
import org.eclipse.emf.cdo.util.CDOPackageType;
import org.eclipse.emf.cdo.util.CDOPackageTypeRegistry;

import org.eclipse.net4j.util.ui.UIUtil;
import org.eclipse.net4j.util.ui.widgets.BaseDialog;

import org.eclipse.emf.ecore.EcorePackage;

import org.eclipse.jface.viewers.CheckboxTableViewer;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.ITableColorProvider;
import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

/**
 * @author Eike Stepper
 */
public class SelectPackageDialog extends BaseDialog<CheckboxTableViewer> {
    private static final Set<String> NO_URIS = Collections.emptySet();

    private Set<String> excludedURIs = new HashSet<String>();

    private Set<String> checkedURIs = new HashSet<String>();

    public SelectPackageDialog(Shell shell, String title, String message, Set<String> excludedURIs) {
        super(shell, DEFAULT_SHELL_STYLE | SWT.APPLICATION_MODAL, title, message,
                OM.Activator.INSTANCE.getDialogSettings());
        this.excludedURIs = excludedURIs;
    }

    public SelectPackageDialog(Shell shell, String title, String message) {
        this(shell, title, message, NO_URIS);
    }

    public Set<String> getCheckedURIs() {
        return checkedURIs;
    }

    @Override
    protected void createUI(Composite parent) {
        CheckboxTableViewer viewer = CheckboxTableViewer.newCheckList(parent, SWT.SINGLE | SWT.BORDER);
        viewer.getTable().setLayoutData(UIUtil.createGridData());
        viewer.setContentProvider(new PackageContentProvider());
        viewer.setLabelProvider(new PackageLabelProvider());
        viewer.setInput(CDOPackageTypeRegistry.INSTANCE);

        String[] uris = OM.PREF_HISTORY_SELECT_PACKAGES.getValue();
        if (uris != null) {
            viewer.setCheckedElements(uris);
        }

        setCurrentViewer(viewer);
    }

    @Override
    protected void okPressed() {
        Object[] checkedElements = getCurrentViewer().getCheckedElements();
        for (Object checkedElement : checkedElements) {
            checkedURIs.add((String) checkedElement);
        }

        OM.PREF_HISTORY_SELECT_PACKAGES.setValue(checkedURIs.toArray(new String[checkedURIs.size()]));
        super.okPressed();
    }

    /**
     * @author Eike Stepper
     */
    private class PackageContentProvider implements IStructuredContentProvider {
        public PackageContentProvider() {
        }

        public void dispose() {
        }

        public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
        }

        public Object[] getElements(Object inputElement) {
            Set<String> uris = new HashSet<String>(CDOPackageTypeRegistry.INSTANCE.keySet());
            uris.removeAll(excludedURIs);

            List<String> elements = new ArrayList<String>(uris);
            Collections.sort(elements);
            return elements.toArray();
        }
    }

    /**
     * @author Eike Stepper
     */
    private class PackageLabelProvider extends LabelProvider implements ITableLabelProvider, ITableColorProvider {
        private final Color red = Display.getCurrent().getSystemColor(SWT.COLOR_DARK_MAGENTA);

        public PackageLabelProvider() {
        }

        @Override
        public String getText(Object element) {
            return element.toString();
        }

        @Override
        public Image getImage(Object element) {
            if (element instanceof String) {
                CDOPackageType packageType = CDOPackageTypeRegistry.INSTANCE.get(element);
                switch (packageType) {
                case CONVERTED:
                    return SharedIcons.getImage(SharedIcons.OBJ_EPACKAGE_CONVERTED);

                case LEGACY:
                    return SharedIcons.getImage(SharedIcons.OBJ_EPACKAGE_LEGACY);

                case NATIVE:
                    return SharedIcons.getImage(SharedIcons.OBJ_EPACKAGE_NATIVE);
                }
            }

            return null;
        }

        public String getColumnText(Object element, int columnIndex) {
            return getText(element);
        }

        public Image getColumnImage(Object element, int columnIndex) {
            return getImage(element);
        }

        public Color getBackground(Object element, int columnIndex) {
            return null;
        }

        public Color getForeground(Object element, int columnIndex) {
            if (EcorePackage.eINSTANCE.getNsURI().equals(element)) {
                return red;
            }

            return null;
        }
    }
}