com.architexa.diagrams.relo.ui.ReloDocWizard.java Source code

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Here is the source code for com.architexa.diagrams.relo.ui.ReloDocWizard.java

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/* 
 * Copyright (c) 2004-2005 Massachusetts Institute of Technology. This code was
 * developed as part of the Haystack (http://haystack.lcs.mit.edu/) research 
 * project at MIT. Permission is hereby granted, free of charge, to any person
 * obtaining a copy of this software and associated documentation files (the 
 * "Software"), to deal in the Software without restriction, including without 
 * limitation the rights to use, copy, modify, merge, publish, distribute, 
 * sublicense, and/or sell copies of the Software, and to permit persons to whom
 * the Software is furnished to do so, subject to the following conditions: 
 * 
 * The above copyright notice and this permission notice shall be included in 
 * all copies or substantial portions of the Software. 
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER  
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE. 
 */
/*
 * Created on Mar 12, 2005
 *
 */
package com.architexa.diagrams.relo.ui;

import java.net.MalformedURLException;
import java.net.URL;

import org.eclipse.core.resources.IFile;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.wizard.Wizard;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.dialogs.WizardNewFileCreationPage;

import com.architexa.diagrams.relo.ReloPlugin;

/**
 * @author vineet
 * 
 * Note: We assume here that the file is created lazily (on save). We therefore
 * do not have file opening logic here.
 */
public class ReloDocWizard extends Wizard {

    private IWorkbench workbench;
    private IStructuredSelection selection;

    public IStructuredSelection getSelection() {
        return selection;
    }

    public IWorkbench getWorkbench() {
        return workbench;
    }

    /**
     * Creates a wizard for creating a new file resource in the workspace.
     */
    public ReloDocWizard() {
        super();
    }

    private WizardNewFileCreationPage mainPage;

    /*
     * (non-Javadoc) Method declared on IWizard.
     */
    @Override
    public void addPages() {
        super.addPages();
        mainPage = new WizardNewFileCreationPage("newFilePage1", getSelection());
        mainPage.setTitle("Architexa RSE Document");
        mainPage.setDescription("Create a new Architexa RSE Document.");
        mainPage.setFileName("Class.atxa");
        addPage(mainPage);
    }

    /*
     * (non-Javadoc) Method declared on IWorkbenchWizard.
     */
    public void init(IWorkbench workbench, IStructuredSelection currentSelection) {
        this.workbench = workbench;
        this.selection = currentSelection;

        initializeDefaultPageImageDescriptor();

        setWindowTitle("New Relo Document");
        setNeedsProgressMonitor(true);
    }

    /*
     * (non-Javadoc) Method declared on BasicNewResourceWizard.
     */
    protected void initializeDefaultPageImageDescriptor() {
        // TODO: needed (perhaps) for Eclipse 3.4
        //setDefaultPageImageDescriptor(WorkbenchImages
        //        .getImageDescriptor(IWorkbenchGraphicConstants.IMG_WIZBAN_NEW_WIZ));
        String iconPath = "icons/full/";
        try {
            URL installURL = ReloPlugin.getDefault().getBundle().getEntry("/");
            URL url = new URL(installURL, iconPath + "wizban/newfile_wiz.gif");//$NON-NLS-1$
            ImageDescriptor desc = ImageDescriptor.createFromURL(url);
            setDefaultPageImageDescriptor(desc);
        } catch (MalformedURLException e) {
            // Should not happen. Ignore.
        }
    }

    /*
     * Returns null on cancel.
     */
    public IFile getFile() {
        if (cancelled)
            return null;
        else
            return mainPage.createNewFile();
    }

    boolean cancelled = false;

    @Override
    public boolean performCancel() {
        cancelled = true;
        return super.performCancel();
    }

    /*
     * (non-Javadoc) Method declared on IWizard.
     */
    @Override
    public boolean performFinish() {
        // return false if file cannot be created
        IFile file = mainPage.createNewFile();
        if (file == null)
            return false;

        return true;
    }
}