org.eclipse.wst.common.ui.internal.dialogs.SelectSingleFileDialog.java Source code

Introduction

Here is the source code for org.eclipse.wst.common.ui.internal.dialogs.SelectSingleFileDialog.java

Source

/*******************************************************************************
 * Copyright (c) 2004, 2005 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
 *     Jens Lukowski/Innoopract - initial renaming/restructuring
 *******************************************************************************/
package org.eclipse.wst.common.ui.internal.dialogs;

import org.eclipse.core.resources.IFile;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.TitleAreaDialog;
import org.eclipse.jface.resource.DeviceResourceException;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.wst.common.ui.internal.UIPlugin;
import org.eclipse.wst.common.ui.internal.viewers.SelectSingleFileView;

public class SelectSingleFileDialog extends TitleAreaDialog {
    protected SelectSingleFileView selectSingleFileView;
    protected Button okButton;
    protected Image image;
    private ImageDescriptor imageDescriptor;

    public SelectSingleFileDialog(Shell parentShell, IStructuredSelection selection, boolean isFileMandatory) {
        super(parentShell);
        setShellStyle(getShellStyle() | SWT.RESIZE);
        if (selection == null) {
            selection = new StructuredSelection();
        }
        selectSingleFileView = new SelectSingleFileView(selection, isFileMandatory) {
            public void createFilterControl(Composite composite) {
                SelectSingleFileDialog.this.createFilterControl(composite);
            }
        };
    }

    protected Control createDialogArea(Composite parent) {
        Composite dialogArea = (Composite) super.createDialogArea(parent);

        // TODO.. enable context help
        // WorkbenchHelp.setHelp(dialogArea,
        // B2BGUIContextIds.BTBG_SELECT_SINGLE_FILE_DIALOG);

        Composite composite = new Composite(dialogArea, SWT.NONE);
        composite.setLayout(new GridLayout());
        GridData gd = new GridData(GridData.FILL_BOTH);
        gd.widthHint = 350;
        gd.heightHint = 350;
        composite.setLayoutData(gd);

        SelectSingleFileView.Listener listener = new SelectSingleFileView.Listener() {
            public void setControlComplete(boolean isComplete) {
                okButton.setEnabled(isComplete);
            }
        };
        selectSingleFileView.setListener(listener);
        selectSingleFileView.createControl(composite);
        return dialogArea;
    }

    protected void createButtonsForButtonBar(Composite parent) {
        okButton = createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true);
        okButton.setEnabled(false);
        createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false);
    }

    public void create() {
        super.create();
        selectSingleFileView.setVisibleHelper(true);
        image = getSaveAsImage();
        setTitleImage(image);
    }

    /**
     * this image was copied from org.eclipse.ui.ide/icons/full/wizban/ where
     * it is a non-API image, denoted by
     * IDEInternalWorkbenchImages.IMG_DLGBAN_SAVEAS_DLG.
     */
    private Image getSaveAsImage() {
        Image localimage = null;
        try {
            if (imageDescriptor == null) {
                imageDescriptor = UIPlugin.getDefault().getImageDescriptor("icons/saveas_wiz.png");
            }
            localimage = (Image) imageDescriptor.createResource(getContents().getDisplay());
        } catch (DeviceResourceException e) {
            // if image not found
            localimage = (ImageDescriptor.getMissingImageDescriptor()).createImage();
        }
        return localimage;
    }

    public void createFilterCombo(Composite composite) {
    }

    public IFile getFile() {
        return selectSingleFileView.getFile();
    }

    public void addFilterExtensions(String[] filterExtensions) {
        selectSingleFileView.addFilterExtensions(filterExtensions);
    }

    public void addFilterExtensions(String[] filterExtensions, IFile[] excludedFiles) {
        selectSingleFileView.addFilterExtensions(filterExtensions, excludedFiles);
    }

    public void createFilterControl(Composite composite) {
    }

    public boolean close() {
        if (image != null && imageDescriptor != null) {
            imageDescriptor.destroyResource(image);
            image = null;
        }
        return super.close();
    }
}