org.eclipse.papyrus.diagram.common.ui.dialogs.InputDialog.java Source code

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Here is the source code for org.eclipse.papyrus.diagram.common.ui.dialogs.InputDialog.java

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/*****************************************************************************
 * Copyright (c) 2010 CEA LIST.
 *
 *    
 * 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:
 *  Vincent Lorenzo (CEA LIST) vincent.lorenzo@cea.fr - Initial API and implementation
 *
 *****************************************************************************/
package org.eclipse.papyrus.diagram.common.ui.dialogs;

import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;

/**
 * This class provides a Window with :
 * <ul>
 * <li>a title</li>
 * <li>a message</li>
 * <li>an OK button</li>
 * <li>a Cancel button</li>
 * </ul>
 */
public class InputDialog extends Dialog {

    /** The title of the dialog. */

    private final String title;

    /** The message to display, or <code>null</code> if none. */

    private final String message;

    /** The initial value. */

    protected String initialValue = ""; //$NON-NLS-1$

    private String value = ""; //$NON-NLS-1$

    /**
     * Constructor.
     * 
     * @param parentShell
     * @param initialValue
     */
    public InputDialog(Shell parentShell, String title, String message, String initialValue) {
        super(parentShell);
        this.title = title;
        this.message = message;
        if (initialValue != null) {

            this.initialValue = initialValue;
            this.value = initialValue;
        }
    }

    /**
     * Gets the value.
     * 
     * @return the value
     */
    public String getValue() {
        return value;
    }

    @Override
    protected void configureShell(Shell shell) {
        super.configureShell(shell);
        if (title != null) {
            shell.setText(title);
        }
    }

    /**
     * 
     * @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
     * 
     * @param parent
     * @return
     */
    @Override
    protected Control createDialogArea(Composite parent) {
        Composite composite = (Composite) super.createDialogArea(parent);

        if (message != null) {
            Label label = new Label(composite, SWT.WRAP);
            label.setText(message);
            GridData data = new GridData(GridData.GRAB_HORIZONTAL | GridData.GRAB_VERTICAL
                    | GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_CENTER);
            data.widthHint = convertHorizontalDLUsToPixels(IDialogConstants.MINIMUM_MESSAGE_AREA_WIDTH);
            label.setLayoutData(data);
            label.setFont(parent.getFont());
        }
        return composite;
    }

    /**
     * Set the value
     * 
     * @param newValue
     */
    protected void setValue(String newValue) {
        this.value = newValue;
    }
}