org.eclipse.qvt.declarative.editor.ui.commands.PageChangeDialog.java Source code

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Here is the source code for org.eclipse.qvt.declarative.editor.ui.commands.PageChangeDialog.java

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/*******************************************************************************
 * Copyright (c) 2007 E.D.Willink 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:
 *     E.D.Willink - initial API and implementation
 *******************************************************************************/
package org.eclipse.qvt.declarative.editor.ui.commands;

import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.swt.widgets.Shell;

public class PageChangeDialog extends MessageDialog {
    protected static final String[] buttonLabels = new String[] { "Update", "Revert", "Resume" };
    protected static final int UPDATE_BUTTON = 0;
    protected static final int REVERT_BUTTON = 1;
    protected static final int RESUME_BUTTON = 2;

    protected boolean canRevert;
    protected boolean canUpdate;
    protected String reasonNotToDeactivate;

    public PageChangeDialog(Shell shell, String newTitle, String oldTitle, String fileName,
            String reasonNotToDeactivate, boolean canUpdate, boolean canRevert) {
        super(shell, "Update " + fileName + " Resource", null, null,
                reasonNotToDeactivate != null ? MessageDialog.ERROR : MessageDialog.QUESTION, buttonLabels,
                reasonNotToDeactivate != null ? RESUME_BUTTON : UPDATE_BUTTON);
        this.canRevert = canRevert;
        this.canUpdate = canUpdate;
        StringBuffer s = new StringBuffer();
        if (reasonNotToDeactivate != null)
            s.append(reasonNotToDeactivate + "\n");
        else
            s.append("'" + oldTitle + "' page has been modified.\n");
        s.append("\n  Update - accept changes to '" + oldTitle + "' page");
        //      if (!canAbort)
        //         s.append("\n                - start editing '" + newTitle + "' page");
        //      else {
        s.append("\n               - reconcile and edit '" + newTitle + "' page");
        s.append("\n\n  Revert - discard changes to '" + oldTitle + "' page");
        s.append("\n            - revert to editing '" + newTitle + "' page");
        //      }
        s.append("\n\n  Resume - continue editing '" + oldTitle + "' page");
        message = s.toString();
    }

    @Override
    public void create() {
        super.create();
        if (!canUpdate)
            getButton(UPDATE_BUTTON).setEnabled(false);
        if (!canRevert)
            getButton(REVERT_BUTTON).setEnabled(false);
    }

    public boolean isResume() {
        return getReturnCode() == RESUME_BUTTON;
    }

    public boolean isRevert() {
        return getReturnCode() == REVERT_BUTTON;
    }

    public boolean isUpdate() {
        return getReturnCode() == UPDATE_BUTTON;
    }
}