com.wuetherich.osgi.ds.annotations.internal.preferences.fwk.ProjectSelectionDialog.java Source code

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Here is the source code for com.wuetherich.osgi.ds.annotations.internal.preferences.fwk.ProjectSelectionDialog.java

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/*******************************************************************************
 * Copyright (c) 2000, 2012 IBM Corporation 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
 *******************************************************************************/
package com.wuetherich.osgi.ds.annotations.internal.preferences.fwk;

import java.util.Set;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.ColumnLabelProvider;
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.SelectionChangedEvent;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerComparator;
import org.eclipse.jface.viewers.ViewerFilter;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Font;
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.wuetherich.osgi.ds.annotations.DsAnnotationsCore;

/**
 * <p>
 * </p>
 * 
 * <p>
 * This source was copied (and than modified) from the internal class
 * {@link org.eclipse.pde.internal.ui.preferences.ProjectSelectionDialog}.
 * </p>
 * 
 * @author Gerd W&uuml;therich (gerd@gerd-wuetherich.de)
 */
public class ProjectSelectionDialog extends SelectionStatusDialog {

    // the visual selection widget group
    private TableViewer _tableViewer;

    private Set<IProject> _projectsWithSpecifics;

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

    private final static int SIZING_SELECTION_WIDGET_WIDTH = 300;

    private ViewerFilter fFilter;

    public ProjectSelectionDialog(Shell parentShell, Set<IProject> projectsWithSpecifics) {
        super(parentShell);
        setTitle("Project Specific Configuration");
        setMessage("Select the project to configure:");
        _projectsWithSpecifics = projectsWithSpecifics;

        fFilter = new ViewerFilter() {
            @Override
            public boolean select(Viewer viewer, Object parentElement, Object element) {
                return _projectsWithSpecifics.contains(element);
            }
        };
    }

    /*
     * (non-Javadoc) Method declared on Dialog.
     */
    @Override
    protected Control createDialogArea(Composite parent) {
        // page group
        Composite composite = (Composite) super.createDialogArea(parent);

        Font font = parent.getFont();
        composite.setFont(font);

        createMessageArea(composite);

        _tableViewer = new TableViewer(composite, SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER);
        _tableViewer.addSelectionChangedListener(new ISelectionChangedListener() {
            @Override
            public void selectionChanged(SelectionChangedEvent event) {
                doSelectionChanged(((IStructuredSelection) event.getSelection()).toArray());
            }
        });
        _tableViewer.addDoubleClickListener(new IDoubleClickListener() {
            @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;
        _tableViewer.getTable().setLayoutData(data);

        _tableViewer.setLabelProvider(new ColumnLabelProvider() {

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

            @Override
            public String getText(Object element) {
                return ((IProject) element).getName();
            }
        });
        _tableViewer.setContentProvider(ArrayContentProvider.getInstance());
        _tableViewer.setComparator(new ViewerComparator());
        _tableViewer.getControl().setFont(font);

        _tableViewer.setInput(DsAnnotationsCore.getDsAnnotationAwareProjects());

        doSelectionChanged(new Object[0]);
        Dialog.applyDialogFont(composite);
        return composite;
    }

    private void doSelectionChanged(Object[] objects) {
        if (objects.length != 1) {
            updateStatus(new StatusInfo(IStatus.ERROR, "")); //$NON-NLS-1$
            setSelectionResult(null);
        } else {
            updateStatus(new StatusInfo());
            setSelectionResult(objects);
        }
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.ui.dialogs.SelectionStatusDialog#computeResult()
     */
    @Override
    protected void computeResult() {
    }
}