org.eclipse.epf.common.serviceability.WrappedMessageDialog.java Source code

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Here is the source code for org.eclipse.epf.common.serviceability.WrappedMessageDialog.java

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//------------------------------------------------------------------------------
// Copyright (c) 2005, 2006 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 implementation
//------------------------------------------------------------------------------
package org.eclipse.epf.common.serviceability;

import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.MessageDialog;
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;

/**
 * Displays a message dialog that displays wrapped text.
 * 
 * @author Bingxue Xu
 * @since 1.0
 */
public class WrappedMessageDialog extends MessageDialog {

    public WrappedMessageDialog(Shell parentShell, String dialogTitle, Image dialogTitleImage, String dialogMessage,
            int dialogImageType, String[] dialogButtonLabels, int defaultIndex) {
        super(parentShell, dialogTitle, dialogTitleImage, dialogMessage, dialogImageType, dialogButtonLabels,
                defaultIndex);
    }

    protected Control createMessageArea(Composite composite) {

        Control rComposite = super.createMessageArea(composite);

        int minWidth = IDialogConstants.MINIMUM_MESSAGE_AREA_WIDTH;// + 300;
        // TO-DO: need to revist the # of dialog display units and margin
        // when in other languages
        int charsPerLine = minWidth / 4 - 15;
        GridData gd = (GridData) messageLabel.getLayoutData();
        gd.minimumWidth = minWidth;
        messageLabel.setText(addLineBreaks(message, charsPerLine));

        return rComposite;
    }

    String addLineBreaks(String msg, int maxChars) {
        // System.out.println("$$$ DEBUG: original message = " + msg);

        if (msg == null)
            return null;

        StringBuffer strBuf = new StringBuffer();
        int count = 0;
        for (int i = 0; i < msg.length(); i++) {
            strBuf.append(msg.charAt(i));
            if (Character.isWhitespace(msg.charAt(i)))
                count = 0;
            else
                count++;

            if (count >= maxChars) {
                if (!Character.isWhitespace(msg.charAt(i))) {
                    strBuf.append("\n"); //$NON-NLS-1$
                }
                count = 0;
            }
        }

        // System.out.println("$$$ DEBUG: broken message = " +
        // strBuf.toString());
        return strBuf.toString();
    }

    public static boolean openConfirm(Shell parent, String title, String message) {
        WrappedMessageDialog dialog = new WrappedMessageDialog(parent, title, null, // accept
                // the
                // default
                // window
                // icon
                message, QUESTION, new String[] { IDialogConstants.OK_LABEL, IDialogConstants.CANCEL_LABEL }, 0); // OK is the
        // default
        return dialog.open() == 0;
    }

    public static void openError(Shell parent, String title, String message) {
        WrappedMessageDialog dialog = new WrappedMessageDialog(parent, title, null, // accept
                // the
                // default
                // window
                // icon
                message, ERROR, new String[] { IDialogConstants.OK_LABEL }, 0); // ok
        // is
        // the
        // default
        dialog.open();
        return;
    }

    public static void openInformation(Shell parent, String title, String message) {
        WrappedMessageDialog dialog = new WrappedMessageDialog(parent, title, null, // accept
                // the
                // default
                // window
                // icon
                message, INFORMATION, new String[] { IDialogConstants.OK_LABEL }, 0);
        // ok is the default
        dialog.open();
        return;
    }

    public static boolean openQuestion(Shell parent, String title, String message) {
        WrappedMessageDialog dialog = new WrappedMessageDialog(parent, title, null, // accept
                // the
                // default
                // window
                // icon
                message, QUESTION, new String[] { IDialogConstants.YES_LABEL, IDialogConstants.NO_LABEL }, 0); // yes is the
        // default
        return dialog.open() == 0;
    }

    public static void openWarning(Shell parent, String title, String message) {
        WrappedMessageDialog dialog = new WrappedMessageDialog(parent, title, null, // accept
                // the
                // default
                // window
                // icon
                message, WARNING, new String[] { IDialogConstants.OK_LABEL }, 0); // ok
        // is
        // the
        // default
        dialog.open();
        return;
    }
}