org.eclipse.team.internal.ui.wizards.WorkingSetsDialog.java Source code

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Here is the source code for org.eclipse.team.internal.ui.wizards.WorkingSetsDialog.java

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/*******************************************************************************
 * Copyright (c) 2006, 2008 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 org.eclipse.team.internal.ui.wizards;

import java.util.*;

import org.eclipse.core.runtime.Assert;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.TitleAreaDialog;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.*;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.*;
import org.eclipse.team.internal.ui.TeamUIMessages;
import org.eclipse.team.internal.ui.TeamUIPlugin;
import org.eclipse.ui.IWorkingSet;

public class WorkingSetsDialog extends TitleAreaDialog {

    protected TableViewer wsTableViewer;
    protected Text wsNameText;
    protected Image dlgTitleImage;

    private String selectedWorkingSet;

    public static final String resourceWorkingSetId = "org.eclipse.ui.resourceWorkingSetPage"; //$NON-NLS-1$

    public WorkingSetsDialog(Shell shell) {
        super(shell);
        setShellStyle(getShellStyle() | SWT.RESIZE);
    }

    protected Control createDialogArea(Composite parent) {
        setTitle(TeamUIMessages.WorkingSetsDialog_Title);
        setMessage(TeamUIMessages.WorkingSetsDialog_Message);
        Composite workingSetsComposite = (Composite) super.createDialogArea(parent);
        workingSetsComposite = new Composite(workingSetsComposite, SWT.NONE);
        getShell().setText(TeamUIMessages.WorkingSetsDialog_TitleBar);

        final Composite group = new Composite(workingSetsComposite, SWT.NONE);
        GridLayout layout = new GridLayout(2, false);
        layout.marginWidth = 0;
        group.setLayout(layout);
        group.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));

        final Label label = new Label(group, SWT.NONE);
        label.setLayoutData(new GridData());
        label.setText(TeamUIMessages.WorkingSetsDialog_Label);

        wsNameText = new Text(group, SWT.BORDER);
        wsNameText.setLayoutData(new GridData(SWT.FILL, SWT.TOP, true, false));

        layout = new GridLayout();
        layout.numColumns = 1;
        layout.marginHeight = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN);
        layout.marginWidth = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_MARGIN);
        workingSetsComposite.setLayout(layout);
        final GridData data = new GridData(SWT.FILL, SWT.FILL, true, true);
        workingSetsComposite.setLayoutData(data);

        wsTableViewer = new TableViewer(workingSetsComposite, SWT.BORDER);
        final GridData gd = new GridData(SWT.FILL, SWT.FILL, true, true);
        gd.widthHint = 450;
        gd.heightHint = 250;
        wsTableViewer.getTable().setLayoutData(gd);

        wsTableViewer.setContentProvider(new ArrayContentProvider());
        wsTableViewer.setLabelProvider(new WorkingSetLabelProvider());
        wsTableViewer.setInput(TeamUIPlugin.getPlugin().getWorkbench().getWorkingSetManager().getWorkingSets());

        setupListeners();

        return parent;
    }

    protected void okPressed() {
        selectedWorkingSet = wsNameText.getText();

        if (selectedWorkingSet.equals("")) { //$NON-NLS-1$
            setErrorMessage(TeamUIMessages.WorkingSetsDialog_ErrorMessage);
            return;
        }

        super.okPressed();
    }

    protected void cancelPressed() {
        super.cancelPressed();
    }

    public boolean close() {
        if (dlgTitleImage != null)
            dlgTitleImage.dispose();
        return super.close();
    }

    void setupListeners() {
        wsTableViewer.addSelectionChangedListener(new ISelectionChangedListener() {
            public void selectionChanged(SelectionChangedEvent event) {
                IStructuredSelection s = (IStructuredSelection) event.getSelection();
                Object obj = s.getFirstElement();
                if (obj instanceof IWorkingSet)
                    wsNameText.setText(((IWorkingSet) obj).getName());
            }
        });

        wsNameText.addModifyListener(new ModifyListener() {
            public void modifyText(ModifyEvent e) {
                setErrorMessage(null);
            }
        });
    }

    class WorkingSetLabelProvider extends LabelProvider {
        private Map icons;

        public WorkingSetLabelProvider() {
            icons = new Hashtable();
        }

        public void dispose() {
            Iterator iterator = icons.values().iterator();

            while (iterator.hasNext()) {
                Image icon = (Image) iterator.next();
                icon.dispose();
            }
            super.dispose();
        }

        public Image getImage(Object object) {
            Assert.isTrue(object instanceof IWorkingSet);
            IWorkingSet workingSet = (IWorkingSet) object;
            ImageDescriptor imageDescriptor = workingSet.getImageDescriptor();

            if (imageDescriptor == null) {
                return null;
            }

            Image icon = (Image) icons.get(imageDescriptor);
            if (icon == null) {
                icon = imageDescriptor.createImage();
                icons.put(imageDescriptor, icon);
            }
            return icon;
        }

        public String getText(Object object) {
            Assert.isTrue(object instanceof IWorkingSet);
            IWorkingSet workingSet = (IWorkingSet) object;
            return workingSet.getLabel();
        }
    }

    public String getSelectedWorkingSet() {
        return selectedWorkingSet;
    }
}