com.siteview.mde.internal.ui.properties.SelfHostingPropertyPage.java Source code

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Here is the source code for com.siteview.mde.internal.ui.properties.SelfHostingPropertyPage.java

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/*******************************************************************************
 *  Copyright (c) 2003, 2008 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
 *******************************************************************************/
package com.siteview.mde.internal.ui.properties;

import java.util.ArrayList;
import java.util.StringTokenizer;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.ProjectScope;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.jdt.core.*;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.preference.PreferencePage;
import org.eclipse.jface.viewers.*;
import com.siteview.mde.internal.core.ICoreConstants;
import com.siteview.mde.internal.core.MDECore;
import com.siteview.mde.internal.ui.*;
import com.siteview.mde.internal.ui.elements.DefaultTableProvider;
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.*;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.dialogs.PropertyPage;
import org.osgi.service.prefs.BackingStoreException;
import org.osgi.service.prefs.Preferences;

public class SelfHostingPropertyPage extends PropertyPage {

    private Image fImage;
    private CheckboxTableViewer fViewer;

    class ContentProvider extends DefaultTableProvider {
        public Object[] getElements(Object input) {
            return getOutputFolders();
        }
    }

    class FolderLabelProvider extends LabelProvider {
        /* (non-Javadoc)
         * @see org.eclipse.jface.viewers.LabelProvider#getImage(java.lang.Object)
         */
        public Image getImage(Object element) {
            return fImage;
        }
    }

    private String[] getOutputFolders() {
        IProject project = (IProject) getElement().getAdapter(IProject.class);
        ArrayList list = new ArrayList();
        try {
            if (project.hasNature(JavaCore.NATURE_ID)) {
                IJavaProject jProject = JavaCore.create(project);
                list.add(jProject.getOutputLocation().toString());
                IClasspathEntry[] entries = jProject.getRawClasspath();
                for (int i = 0; i < entries.length; i++) {
                    IClasspathEntry entry = entries[i];
                    if (entry.getEntryKind() == IClasspathEntry.CPE_SOURCE
                            && entry.getContentKind() == IPackageFragmentRoot.K_SOURCE) {
                        IPath path = entry.getOutputLocation();
                        if (path != null)
                            list.add(path.toString());
                    }
                }
            }
        } catch (JavaModelException e) {
        } catch (CoreException e) {
        }
        return (String[]) list.toArray(new String[list.size()]);
    }

    public SelfHostingPropertyPage() {
        fImage = MDEPluginImages.DESC_OUTPUT_FOLDER_OBJ.createImage();
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.dialogs.IDialogPage#dispose()
     */
    public void dispose() {
        if (fImage != null)
            fImage.dispose();
    }

    /**
     * @see PreferencePage#createContents(Composite)
     */
    protected Control createContents(Composite parent) {
        Composite composite = new Composite(parent, SWT.NONE);
        composite.setLayout(new GridLayout());
        composite.setLayoutData(new GridData(GridData.FILL_BOTH));

        Label label = new Label(composite, SWT.WRAP);
        label.setText(MDEUIMessages.SelfHostingPropertyPage_label);
        GridData gd = new GridData(GridData.FILL_HORIZONTAL);
        gd.widthHint = 300;
        label.setLayoutData(gd);

        new Label(composite, SWT.NONE);

        label = new Label(composite, SWT.WRAP);
        label.setText(MDEUIMessages.SelfHostingPropertyPage_viewerLabel);

        fViewer = CheckboxTableViewer.newCheckList(composite, SWT.BORDER);
        fViewer.setContentProvider(new ContentProvider());
        fViewer.setLabelProvider(new FolderLabelProvider());
        fViewer.setInput(getElement());
        fViewer.setComparator(new ViewerComparator());
        fViewer.getControl().setLayoutData(new GridData(GridData.FILL_BOTH));

        initialize();

        Dialog.applyDialogFont(composite);
        return composite;
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite)
     */
    public void createControl(Composite parent) {
        super.createControl(parent);
        PlatformUI.getWorkbench().getHelpSystem().setHelp(getControl(), IHelpContextIds.SELFHOSTING_PROPERTY_PAGE);
    }

    private void initialize() {
        fViewer.setAllChecked(true);
        Preferences pref = getPreferences((IProject) getElement().getAdapter(IProject.class));
        if (pref != null) {
            String binExcludes = pref.get(ICoreConstants.SELFHOSTING_BIN_EXCLUDES, ""); //$NON-NLS-1$
            StringTokenizer tokenizer = new StringTokenizer(binExcludes, ","); //$NON-NLS-1$
            while (tokenizer.hasMoreTokens()) {
                String token = tokenizer.nextToken().trim();
                fViewer.setChecked(token, false);
            }
        }
    }

    private Preferences getPreferences(IProject project) {
        return new ProjectScope(project).getNode(MDECore.PLUGIN_ID);
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.preference.PreferencePage#performDefaults()
     */
    protected void performDefaults() {
        fViewer.setAllChecked(true);
    }

    public boolean performOk() {
        Preferences pref = getPreferences((IProject) getElement().getAdapter(IProject.class));
        StringBuffer buffer = new StringBuffer();
        for (int i = 0; i < fViewer.getTable().getItemCount(); i++) {
            Object object = fViewer.getElementAt(i);
            if (!fViewer.getChecked(object)) {
                if (buffer.length() > 0)
                    buffer.append(","); //$NON-NLS-1$
                buffer.append(object.toString());
            }
        }
        if (pref != null) {
            if (buffer.length() > 0)
                pref.put(ICoreConstants.SELFHOSTING_BIN_EXCLUDES, buffer.toString());
            else
                pref.remove(ICoreConstants.SELFHOSTING_BIN_EXCLUDES);

            try {
                pref.flush();
            } catch (BackingStoreException e) {
                MDEPlugin.logException(e);
            }
        }
        return super.performOk();
    }

}