ui/org.eclipse.pde.ui/src/org/eclipse/pde/internal/ui/views/imagebrowser/ImageBrowserView.java - pde/eclipse.pde.ui - Git at Google

 /*******************************************************************************
  *  Copyright (c) 2012 Christian Pontesegger 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:
  *     Christian Pontesegger - initial API and implementation
  *     IBM Corporation - ongoing enhancements
  *******************************************************************************/

 package org.eclipse.pde.internal.ui.views.imagebrowser;

 import java.util.*;
 import java.util.List;
 import org.eclipse.jface.viewers.*;
 import org.eclipse.osgi.util.NLS;
 import org.eclipse.pde.internal.ui.*;
 import org.eclipse.pde.internal.ui.views.imagebrowser.filter.*;
 import org.eclipse.pde.internal.ui.views.imagebrowser.filter.IFilter;
 import org.eclipse.pde.internal.ui.views.imagebrowser.repositories.*;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.custom.ScrolledComposite;
 import org.eclipse.swt.events.*;
 import org.eclipse.swt.graphics.*;
 import org.eclipse.swt.layout.*;
 import org.eclipse.swt.widgets.*;
 import org.eclipse.ui.ISourceProvider;
 import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.part.ViewPart;
 import org.eclipse.ui.services.ISourceProviderService;

 /**
  * Provides the PDE Image browser view which displays all icons and images from plug-ins.  The plug-ins
  * can be loaded from the target platform, the workspace or the current install.
  */
 public class ImageBrowserView extends ViewPart implements IImageTarget {

 	private final UpdateUI mUIJob = new UpdateUI();

 	private final List<IFilter<ImageElement>> mFilters = new ArrayList<IFilter<ImageElement>>();
 	private final IFilter<ImageElement> disabledIcons;
 	private final IFilter<ImageElement> enabledIcons;
 	private final IFilter<ImageElement> wizard;

 	private ScrolledComposite scrolledComposite;
 	private Composite imageComposite;
 	private ComboViewer sourceCombo;
 	int mImageCounter = 0;
 	private Label lblPlugin;
 	private Label lblPath;
 	private Label lblWidth;
 	private Label lblHeight;
 	private Text txtReference;
 	private Button nextButton;
 	private Spinner spinMaxImages;

 	private List<Image> displayedImages = new ArrayList<Image>();

 	@SuppressWarnings("unchecked")
 	public ImageBrowserView() {
 		// create default filters
 		final IFilter<ImageElement> iconSize = new SizeFilter(16, SizeFilter.TYPE_EXACT, 16, SizeFilter.TYPE_EXACT);
 		final IFilter<ImageElement> disabled1 = new PatternFilter(".*/obj16/\\w+dis(_obj)?\\W.+"); //$NON-NLS-1$
 		final IFilter<ImageElement> disabled2 = new PatternFilter(".*/d(?!ialogs)(?!ecorations)(?!nd)(?!evguide)\\w+/.+"); //$NON-NLS-1$
 		final IFilter<ImageElement> disabled = new OrFilter<ImageElement>(new IFilter[] {disabled1, disabled2});
 		disabledIcons = new AndFilter<ImageElement>(new IFilter[] {iconSize, disabled});

 		final IFilter<ImageElement> enabled = new NotFilter<ImageElement>(disabled);
 		enabledIcons = new AndFilter<ImageElement>(new IFilter[] {iconSize, enabled});

 		final IFilter<ImageElement> wizardSize = new SizeFilter(75, SizeFilter.TYPE_EXACT, 66, SizeFilter.TYPE_EXACT);
 		final IFilter<ImageElement> wizard1 = new PatternFilter(".*/wizban/.+"); //$NON-NLS-1$
 		final IFilter<ImageElement> wizard2 = new PatternFilter(".+_wiz\\.\\w+"); //$NON-NLS-1$
 		final IFilter<ImageElement> wizardName = new OrFilter<ImageElement>(new IFilter[] {wizard1, wizard2});
 		wizard = new AndFilter<ImageElement>(new IFilter[] {wizardSize, wizardName});

 		mFilters.add(enabledIcons);
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.ui.part.WorkbenchPart#createPartControl(org.eclipse.swt.widgets.Composite)
 	 */
 	public void createPartControl(final Composite parent) {
 		final Composite composite = SWTFactory.createComposite(parent, 1, 1, GridData.FILL_BOTH, 0, 0);
 		PlatformUI.getWorkbench().getHelpSystem().setHelp(composite, IHelpContextIds.IMAGE_BROWSER_VIEW);

 		Composite topComp = new Composite(composite, SWT.NONE);
 		RowLayout layout = new RowLayout();
 		topComp.setLayout(layout);
 		topComp.setFont(parent.getFont());
 		topComp.setBackground(composite.getBackground());
 		GridData gd = new GridData(GridData.FILL_HORIZONTAL);
 		topComp.setLayoutData(gd);

 		Composite sourceComp = SWTFactory.createComposite(topComp, 7, 1, SWT.NONE, 0, 0);
 		sourceComp.setLayoutData(new RowData());
 		SWTFactory.createLabel(sourceComp, PDEUIMessages.ImageBrowserView_Source, 1);
 		sourceCombo = new ComboViewer(SWTFactory.createCombo(sourceComp, SWT.READ_ONLY, 1, null));
 		sourceCombo.setContentProvider(new ArrayContentProvider());
 		sourceCombo.addSelectionChangedListener(new ISelectionChangedListener() {
 			public void selectionChanged(SelectionChangedEvent event) {
 				scanImages();
 			}
 		});

 		ArrayList<Object> sourceComboInput = new ArrayList<Object>();
 		sourceComboInput.add(new TargetPlatformRepository(this, true));
 		sourceComboInput.add(new TargetPlatformRepository(this, false));
 		sourceComboInput.add(new WorkspaceRepository(this));
 		sourceCombo.setInput(sourceComboInput);

 		SWTFactory.createHorizontalSpacer(sourceComp, 3);

 		SWTFactory.createLabel(sourceComp, PDEUIMessages.ImageBrowserView_Show, 1);
 		Combo typeCombo = SWTFactory.createCombo(sourceComp, SWT.READ_ONLY, 1, new String[] {PDEUIMessages.ImageBrowserView_FilterIcons, PDEUIMessages.ImageBrowserView_FilterDisabled, PDEUIMessages.ImageBrowserView_FilterWizards, PDEUIMessages.ImageBrowserView_FilterAllImages});
 		typeCombo.addSelectionListener(new SelectionAdapter() {
 			@Override
 			public void widgetSelected(SelectionEvent e) {
 				mFilters.clear();
 				Combo source = (Combo) e.getSource();
 				switch (source.getSelectionIndex()) {
 					case 0 :
 						mFilters.add(enabledIcons);
 						break;
 					case 1 :
 						mFilters.add(disabledIcons);
 						break;
 					case 2 :
 						mFilters.add(wizard);
 						break;
 					case 3 :
 					default :
 				}
 				scanImages();
 			}
 		});

 		Composite pageComp = SWTFactory.createComposite(topComp, 6, 1, SWT.NONE, 0, 0);
 		((GridLayout) pageComp.getLayout()).marginLeft = 20;
 		pageComp.setLayoutData(new RowData());
 		SWTFactory.createLabel(pageComp, PDEUIMessages.ImageBrowserView_MaxImages, 1);
 		spinMaxImages = new Spinner(pageComp, SWT.BORDER);
 		spinMaxImages.setMaximum(999);
 		spinMaxImages.setMinimum(1);
 		spinMaxImages.setSelection(250);

 		SWTFactory.createHorizontalSpacer(pageComp, 3);

 		nextButton = SWTFactory.createPushButton(pageComp, PDEUIMessages.ImageBrowserView_ShowMore, null);
 		nextButton.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(final SelectionEvent e) {
 				scanImages();
 			}
 		});
 		nextButton.setEnabled(false);

 		scrolledComposite = new ScrolledComposite(composite, SWT.BORDER | SWT.V_SCROLL);
 		scrolledComposite.setBackground(scrolledComposite.getParent().getBackground());
 		scrolledComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
 		scrolledComposite.setExpandHorizontal(true);
 		scrolledComposite.setExpandVertical(true);

 		scrolledComposite.addControlListener(new ControlAdapter() {
 			public void controlResized(final ControlEvent e) {
 				Rectangle r = scrolledComposite.getClientArea();
 				scrolledComposite.setMinSize(imageComposite.computeSize(r.width, SWT.DEFAULT));
 			}
 		});
 		imageComposite = SWTFactory.createComposite(scrolledComposite, 1, 1, GridData.FILL_BOTH, 0, 0);
 		((GridLayout) imageComposite.getLayout()).verticalSpacing = 0;
 		imageComposite.setBackground(imageComposite.getParent().getBackground());
 		scrolledComposite.setContent(imageComposite);
 		scrolledComposite.setMinSize(imageComposite.computeSize(SWT.DEFAULT, SWT.DEFAULT));

 		Composite infoGroup = SWTFactory.createComposite(composite, 4, 1, GridData.FILL_HORIZONTAL, 0, 0);
 		((GridLayout) infoGroup.getLayout()).verticalSpacing = 0;

 		SWTFactory.createLabel(infoGroup, PDEUIMessages.ImageBrowserView_Path, 1);
 		lblPath = new Label(infoGroup, SWT.NONE);
 		lblPath.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));

 		SWTFactory.createLabel(infoGroup, PDEUIMessages.ImageBrowserView_Width, 1);
 		lblWidth = new Label(infoGroup, SWT.NONE);
 		final GridData gd_lblWidth = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
 		gd_lblWidth.widthHint = 50;
 		lblWidth.setLayoutData(gd_lblWidth);

 		SWTFactory.createLabel(infoGroup, PDEUIMessages.ImageBrowserView_Plugin, 1);
 		lblPlugin = new Label(infoGroup, SWT.NONE);
 		lblPlugin.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1));

 		SWTFactory.createLabel(infoGroup, PDEUIMessages.ImageBrowserView_Height, 1);
 		lblHeight = new Label(infoGroup, SWT.NONE);
 		final GridData gd_lblHeight = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
 		gd_lblHeight.widthHint = 50;
 		lblHeight.setLayoutData(gd_lblHeight);

 		SWTFactory.createLabel(infoGroup, PDEUIMessages.ImageBrowserView_Reference, 1);
 		txtReference = new Text(infoGroup, SWT.BORDER | SWT.READ_ONLY);
 		txtReference.setBackground(txtReference.getParent().getBackground());
 		txtReference.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 3, 1));
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.ui.part.WorkbenchPart#setFocus()
 	 */
 	public void setFocus() {
 		// Pressing enter when navigating the images calls this method, stealing focus
 		if (sourceCombo.getSelection().isEmpty()) {
 			sourceCombo.getCombo().setFocus();
 		}
 	}

 	public void notifyImage(final ImageElement element) {
 		for (final IFilter<ImageElement> filter : mFilters) {
 			if (!filter.accept(element))
 				return;
 		}

 		mUIJob.addImage(element);
 		mImageCounter--;

 		if (mImageCounter <= 0) {
 			Display.getDefault().asyncExec(new Runnable() {

 				public void run() {
 					nextButton.setEnabled(true);
 				}
 			});
 		}
 	}

 	public boolean needsMore() {
 		return mImageCounter > 0;
 	}

 	private void scanImages() {
 		nextButton.setEnabled(false);

 		// reset UI components
 		mUIJob.reset();
 		lblPath.setText(""); //$NON-NLS-1$
 		lblPlugin.setText(""); //$NON-NLS-1$
 		lblWidth.setText(""); //$NON-NLS-1$
 		lblHeight.setText(""); //$NON-NLS-1$
 		txtReference.setText(""); //$NON-NLS-1$

 		// first dispose controls
 		for (final Control control : imageComposite.getChildren()) {
 			control.dispose();
 		}

 		// then dispose images used in controls
 		disposeImages();

 		// initialize scan job
 		if (!sourceCombo.getSelection().isEmpty()) {
 			// set maximum image counter
 			mImageCounter = spinMaxImages.getSelection();

 			final AbstractRepository repository = (AbstractRepository) ((IStructuredSelection) sourceCombo.getSelection()).getFirstElement();
 			repository.schedule();
 		}
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.ui.part.WorkbenchPart#dispose()
 	 */
 	@Override
 	public void dispose() {
 		disposeImages();
 	}

 	private void disposeImages() {
 		for (Image image : displayedImages) {
 			image.dispose();
 		}
 		displayedImages.clear();
 	}

 	private class UpdateUI extends FocusAdapter implements Runnable {

 		Collection<ImageElement> mElements = new LinkedList<ImageElement>();
 		String mLastPlugin = ""; //$NON-NLS-1$
 		private Composite mPluginImageContainer = null;
 		private final RowLayout mRowLayout = new RowLayout(SWT.HORIZONTAL);

 		public UpdateUI() {
 			mRowLayout.wrap = true;
 			mRowLayout.marginWidth = 0;
 			mRowLayout.marginHeight = 0;
 		}

 		public synchronized void addImage(final ImageElement element) {
 			mElements.add(element);

 			if (mElements.size() == 1)
 				Display.getDefault().asyncExec(this);
 		}

 		public synchronized void run() {

 			if (!mElements.isEmpty()) {
 				for (final ImageElement element : mElements) {
 					if (!mLastPlugin.equals(element.getPlugin())) {
 						// new plug-in detected
 						mLastPlugin = element.getPlugin();
 						Label label = new Label(imageComposite, SWT.NONE);
 						label.setText(mLastPlugin);
 						label.setBackground(label.getParent().getBackground());

 						if (mPluginImageContainer != null)
 							mPluginImageContainer.layout();

 						mPluginImageContainer = new Composite(imageComposite, SWT.NONE);
 						mPluginImageContainer.setLayout(mRowLayout);
 						mPluginImageContainer.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));
 						mPluginImageContainer.setBackground(mPluginImageContainer.getParent().getBackground());
 					}

 					Button button = new Button(mPluginImageContainer, SWT.FLAT);
 					Image image = new Image(getViewSite().getShell().getDisplay(), element.getImageData());
 					displayedImages.add(image);
 					button.setImage(image);
 					button.setToolTipText(element.getPath());
 					button.setData(element);
 					button.addFocusListener(this);
 					button.addListener(SWT.Activate, new Listener() {
 						public void handleEvent(Event e) {

 						}
 					});
 				}

 				mElements.clear();

 				mPluginImageContainer.layout();
 				imageComposite.layout();

 				Rectangle r = scrolledComposite.getClientArea();
 				scrolledComposite.setMinSize(imageComposite.computeSize(r.width, SWT.DEFAULT));
 			}
 		}

 		public void focusGained(FocusEvent e) {
 			// Scroll the focused control into view
 			Control child = (Control) e.widget;
 			Rectangle bounds = child.getBounds();
 			// Because we store the buttons in an additional composite, need to adjust bounds
 			Rectangle pluginBounds = child.getParent().getBounds();
 			bounds.x += pluginBounds.x;
 			bounds.y += pluginBounds.y;
 			Rectangle area = scrolledComposite.getClientArea();
 			Point origin = scrolledComposite.getOrigin();
 			if (origin.x > bounds.x)
 				origin.x = Math.max(0, bounds.x);
 			if (origin.y > bounds.y)
 				origin.y = Math.max(0, bounds.y);
 			if (origin.x + area.width < bounds.x + bounds.width)
 				origin.x = Math.max(0, bounds.x + bounds.width - area.width);
 			if (origin.y + area.height < bounds.y + bounds.height)
 				origin.y = Math.max(0, bounds.y + bounds.height - area.height);
 			scrolledComposite.setOrigin(origin);

 			final Object data = e.widget.getData();
 			if (data instanceof ImageElement) {

 				// Example of how we could use a popup dialog instead
 //				org.eclipse.core.runtime.Path path = new org.eclipse.core.runtime.Path(((ImageElement) data).getPath());
 //
 //				new PopupDialog(getSite().getShell(), PopupDialog.HOVER_SHELLSTYLE, true, false, false, false, false, path.lastSegment(), "") {
 //					protected Control createInfoTextArea(Composite parent) {
 //
 //						Composite infoGroup = SWTFactory.createComposite(parent, 4, 1, GridData.FILL_HORIZONTAL, 0, 0);
 //
 //						SWTFactory.createLabel(infoGroup, PDEUIMessages.ImageBrowserView_Path, 1);
 //						lblPath = new Label(infoGroup, SWT.NONE);
 //						lblPath.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));
 //
 //						SWTFactory.createLabel(infoGroup, PDEUIMessages.ImageBrowserView_Width, 1);
 //						lblWidth = new Label(infoGroup, SWT.NONE);
 //						final GridData gd_lblWidth = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
 //						gd_lblWidth.widthHint = 50;
 //						lblWidth.setLayoutData(gd_lblWidth);
 //
 //						SWTFactory.createLabel(infoGroup, PDEUIMessages.ImageBrowserView_Plugin, 1);
 //						lblPlugin = new Label(infoGroup, SWT.NONE);
 //						lblPlugin.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1));
 //
 //						SWTFactory.createLabel(infoGroup, PDEUIMessages.ImageBrowserView_Height, 1);
 //						lblHeight = new Label(infoGroup, SWT.NONE);
 //						final GridData gd_lblHeight = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
 //						gd_lblHeight.widthHint = 50;
 //						lblHeight.setLayoutData(gd_lblHeight);
 //
 //						SWTFactory.createLabel(infoGroup, PDEUIMessages.ImageBrowserView_Reference, 1);
 //						txtReference = new Text(infoGroup, SWT.BORDER | SWT.READ_ONLY);
 //						txtReference.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 3, 1));
 //
 //						lblPath.setText(((ImageElement) data).getPath());
 //						lblPlugin.setText(((ImageElement) data).getFullPlugin());
 //						txtReference.setText("platform:/plugin/" + ((ImageElement) data).getPlugin() + "/" + ((ImageElement) data).getPath()); //$NON-NLS-1$ //$NON-NLS-2$
 //
 //						lblWidth.setText(NLS.bind(PDEUIMessages.ImageBrowserView_Pixels, Integer.toString(((ImageElement) data).getImageData().width)));
 //						lblHeight.setText(NLS.bind(PDEUIMessages.ImageBrowserView_Pixels, Integer.toString(((ImageElement) data).getImageData().height)));
 //
 //						return infoGroup;
 //					}
 //				}.open();
 //
 //				StringBuffer text = new StringBuffer();
 //				text.append(NLS.bind("Image Path: {0}", path.toString())).append('\n');
 //				text.append(NLS.bind("Plug-in Provider: {0}", ((ImageElement) data).getFullPlugin())).append('\n');
 //				text.append(NLS.bind("Reference URL: {0}", "platform:/plugin/" + ((ImageElement) data).getPlugin() + "/" + ((ImageElement) data).getPath())).append('\n'); //$NON-NLS-1$ //$NON-NLS-2$
 //				text.append(NLS.bind("Width: {0}   Height: {1}", Integer.toString(((ImageElement) data).getImageData().width), Integer.toString(((ImageElement) data).getImageData().height)));
 //
 //				PopupDialog popup = new PopupDialog(getSite().getShell(), SWT.NONE, false, false, false, false, false, path.lastSegment(), text.toString());
 //				popup.open();

 				lblPath.setText(((ImageElement) data).getPath());
 				lblPlugin.setText(((ImageElement) data).getFullPlugin());
 				txtReference.setText("platform:/plugin/" + ((ImageElement) data).getPlugin() + "/" + ((ImageElement) data).getPath()); //$NON-NLS-1$ //$NON-NLS-2$

 				lblWidth.setText(NLS.bind(PDEUIMessages.ImageBrowserView_Pixels, Integer.toString(((ImageElement) data).getImageData().width)));
 				lblHeight.setText(NLS.bind(PDEUIMessages.ImageBrowserView_Pixels, Integer.toString(((ImageElement) data).getImageData().height)));

 				// update source provider
 				ISourceProviderService service = (ISourceProviderService) PlatformUI.getWorkbench().getService(ISourceProviderService.class);
 				ISourceProvider provider = service.getSourceProvider(ActiveImageSourceProvider.ACTIVE_IMAGE);
 				if (provider instanceof ActiveImageSourceProvider)
 					((ActiveImageSourceProvider) provider).setImageData(((ImageElement) data));
 			}
 		}

 		public synchronized void reset() {
 			mLastPlugin = ""; //$NON-NLS-1$
 			mElements.clear();
 			mPluginImageContainer = null;
 		}
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2012 Christian Pontesegger 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:
	* Christian Pontesegger - initial API and implementation
	* IBM Corporation - ongoing enhancements
	*******************************************************************************/

	package org.eclipse.pde.internal.ui.views.imagebrowser;

	import java.util.*;
	import java.util.List;
	import org.eclipse.jface.viewers.*;
	import org.eclipse.osgi.util.NLS;
	import org.eclipse.pde.internal.ui.*;
	import org.eclipse.pde.internal.ui.views.imagebrowser.filter.*;
	import org.eclipse.pde.internal.ui.views.imagebrowser.filter.IFilter;
	import org.eclipse.pde.internal.ui.views.imagebrowser.repositories.*;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.custom.ScrolledComposite;
	import org.eclipse.swt.events.*;
	import org.eclipse.swt.graphics.*;
	import org.eclipse.swt.layout.*;
	import org.eclipse.swt.widgets.*;
	import org.eclipse.ui.ISourceProvider;
	import org.eclipse.ui.PlatformUI;
	import org.eclipse.ui.part.ViewPart;
	import org.eclipse.ui.services.ISourceProviderService;

	/**
	* Provides the PDE Image browser view which displays all icons and images from plug-ins. The plug-ins
	* can be loaded from the target platform, the workspace or the current install.
	*/
	public class ImageBrowserView extends ViewPart implements IImageTarget {

	private final UpdateUI mUIJob = new UpdateUI();

	private final List<IFilter<ImageElement>> mFilters = new ArrayList<IFilter<ImageElement>>();
	private final IFilter<ImageElement> disabledIcons;
	private final IFilter<ImageElement> enabledIcons;
	private final IFilter<ImageElement> wizard;

	private ScrolledComposite scrolledComposite;
	private Composite imageComposite;
	private ComboViewer sourceCombo;
	int mImageCounter = 0;
	private Label lblPlugin;
	private Label lblPath;
	private Label lblWidth;
	private Label lblHeight;
	private Text txtReference;
	private Button nextButton;
	private Spinner spinMaxImages;

	private List<Image> displayedImages = new ArrayList<Image>();

	@SuppressWarnings("unchecked")
	public ImageBrowserView() {
	// create default filters
	final IFilter<ImageElement> iconSize = new SizeFilter(16, SizeFilter.TYPE_EXACT, 16, SizeFilter.TYPE_EXACT);
	final IFilter<ImageElement> disabled1 = new PatternFilter(".*/obj16/\\w+dis(_obj)?\\W.+"); //$NON-NLS-1$
	final IFilter<ImageElement> disabled2 = new PatternFilter(".*/d(?!ialogs)(?!ecorations)(?!nd)(?!evguide)\\w+/.+"); //$NON-NLS-1$
	final IFilter<ImageElement> disabled = new OrFilter<ImageElement>(new IFilter[] {disabled1, disabled2});
	disabledIcons = new AndFilter<ImageElement>(new IFilter[] {iconSize, disabled});

	final IFilter<ImageElement> enabled = new NotFilter<ImageElement>(disabled);
	enabledIcons = new AndFilter<ImageElement>(new IFilter[] {iconSize, enabled});

	final IFilter<ImageElement> wizardSize = new SizeFilter(75, SizeFilter.TYPE_EXACT, 66, SizeFilter.TYPE_EXACT);
	final IFilter<ImageElement> wizard1 = new PatternFilter(".*/wizban/.+"); //$NON-NLS-1$
	final IFilter<ImageElement> wizard2 = new PatternFilter(".+_wiz\\.\\w+"); //$NON-NLS-1$
	final IFilter<ImageElement> wizardName = new OrFilter<ImageElement>(new IFilter[] {wizard1, wizard2});
	wizard = new AndFilter<ImageElement>(new IFilter[] {wizardSize, wizardName});

	mFilters.add(enabledIcons);
	}

	/* (non-Javadoc)
	* @see org.eclipse.ui.part.WorkbenchPart#createPartControl(org.eclipse.swt.widgets.Composite)
	*/
	public void createPartControl(final Composite parent) {
	final Composite composite = SWTFactory.createComposite(parent, 1, 1, GridData.FILL_BOTH, 0, 0);
	PlatformUI.getWorkbench().getHelpSystem().setHelp(composite, IHelpContextIds.IMAGE_BROWSER_VIEW);

	Composite topComp = new Composite(composite, SWT.NONE);
	RowLayout layout = new RowLayout();
	topComp.setLayout(layout);
	topComp.setFont(parent.getFont());
	topComp.setBackground(composite.getBackground());
	GridData gd = new GridData(GridData.FILL_HORIZONTAL);
	topComp.setLayoutData(gd);

	Composite sourceComp = SWTFactory.createComposite(topComp, 7, 1, SWT.NONE, 0, 0);
	sourceComp.setLayoutData(new RowData());
	SWTFactory.createLabel(sourceComp, PDEUIMessages.ImageBrowserView_Source, 1);
	sourceCombo = new ComboViewer(SWTFactory.createCombo(sourceComp, SWT.READ_ONLY, 1, null));
	sourceCombo.setContentProvider(new ArrayContentProvider());
	sourceCombo.addSelectionChangedListener(new ISelectionChangedListener() {
	public void selectionChanged(SelectionChangedEvent event) {
	scanImages();
	}
	});

	ArrayList<Object> sourceComboInput = new ArrayList<Object>();
	sourceComboInput.add(new TargetPlatformRepository(this, true));
	sourceComboInput.add(new TargetPlatformRepository(this, false));
	sourceComboInput.add(new WorkspaceRepository(this));
	sourceCombo.setInput(sourceComboInput);

	SWTFactory.createHorizontalSpacer(sourceComp, 3);

	SWTFactory.createLabel(sourceComp, PDEUIMessages.ImageBrowserView_Show, 1);
	Combo typeCombo = SWTFactory.createCombo(sourceComp, SWT.READ_ONLY, 1, new String[] {PDEUIMessages.ImageBrowserView_FilterIcons, PDEUIMessages.ImageBrowserView_FilterDisabled, PDEUIMessages.ImageBrowserView_FilterWizards, PDEUIMessages.ImageBrowserView_FilterAllImages});
	typeCombo.addSelectionListener(new SelectionAdapter() {
	@Override
	public void widgetSelected(SelectionEvent e) {
	mFilters.clear();
	Combo source = (Combo) e.getSource();
	switch (source.getSelectionIndex()) {
	case 0 :
	mFilters.add(enabledIcons);
	break;
	case 1 :
	mFilters.add(disabledIcons);
	break;
	case 2 :
	mFilters.add(wizard);
	break;
	case 3 :
	default :
	}
	scanImages();
	}
	});

	Composite pageComp = SWTFactory.createComposite(topComp, 6, 1, SWT.NONE, 0, 0);
	((GridLayout) pageComp.getLayout()).marginLeft = 20;
	pageComp.setLayoutData(new RowData());
	SWTFactory.createLabel(pageComp, PDEUIMessages.ImageBrowserView_MaxImages, 1);
	spinMaxImages = new Spinner(pageComp, SWT.BORDER);
	spinMaxImages.setMaximum(999);
	spinMaxImages.setMinimum(1);
	spinMaxImages.setSelection(250);

	SWTFactory.createHorizontalSpacer(pageComp, 3);

	nextButton = SWTFactory.createPushButton(pageComp, PDEUIMessages.ImageBrowserView_ShowMore, null);
	nextButton.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(final SelectionEvent e) {
	scanImages();
	}
	});
	nextButton.setEnabled(false);

	scrolledComposite = new ScrolledComposite(composite, SWT.BORDER \| SWT.V_SCROLL);
	scrolledComposite.setBackground(scrolledComposite.getParent().getBackground());
	scrolledComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
	scrolledComposite.setExpandHorizontal(true);
	scrolledComposite.setExpandVertical(true);

	scrolledComposite.addControlListener(new ControlAdapter() {
	public void controlResized(final ControlEvent e) {
	Rectangle r = scrolledComposite.getClientArea();
	scrolledComposite.setMinSize(imageComposite.computeSize(r.width, SWT.DEFAULT));
	}
	});
	imageComposite = SWTFactory.createComposite(scrolledComposite, 1, 1, GridData.FILL_BOTH, 0, 0);
	((GridLayout) imageComposite.getLayout()).verticalSpacing = 0;
	imageComposite.setBackground(imageComposite.getParent().getBackground());
	scrolledComposite.setContent(imageComposite);
	scrolledComposite.setMinSize(imageComposite.computeSize(SWT.DEFAULT, SWT.DEFAULT));

	Composite infoGroup = SWTFactory.createComposite(composite, 4, 1, GridData.FILL_HORIZONTAL, 0, 0);
	((GridLayout) infoGroup.getLayout()).verticalSpacing = 0;

	SWTFactory.createLabel(infoGroup, PDEUIMessages.ImageBrowserView_Path, 1);
	lblPath = new Label(infoGroup, SWT.NONE);
	lblPath.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));

	SWTFactory.createLabel(infoGroup, PDEUIMessages.ImageBrowserView_Width, 1);
	lblWidth = new Label(infoGroup, SWT.NONE);
	final GridData gd_lblWidth = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
	gd_lblWidth.widthHint = 50;
	lblWidth.setLayoutData(gd_lblWidth);

	SWTFactory.createLabel(infoGroup, PDEUIMessages.ImageBrowserView_Plugin, 1);
	lblPlugin = new Label(infoGroup, SWT.NONE);
	lblPlugin.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1));

	SWTFactory.createLabel(infoGroup, PDEUIMessages.ImageBrowserView_Height, 1);
	lblHeight = new Label(infoGroup, SWT.NONE);
	final GridData gd_lblHeight = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
	gd_lblHeight.widthHint = 50;
	lblHeight.setLayoutData(gd_lblHeight);

	SWTFactory.createLabel(infoGroup, PDEUIMessages.ImageBrowserView_Reference, 1);
	txtReference = new Text(infoGroup, SWT.BORDER \| SWT.READ_ONLY);
	txtReference.setBackground(txtReference.getParent().getBackground());
	txtReference.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 3, 1));
	}

	/* (non-Javadoc)
	* @see org.eclipse.ui.part.WorkbenchPart#setFocus()
	*/
	public void setFocus() {
	// Pressing enter when navigating the images calls this method, stealing focus
	if (sourceCombo.getSelection().isEmpty()) {
	sourceCombo.getCombo().setFocus();
	}
	}

	public void notifyImage(final ImageElement element) {
	for (final IFilter<ImageElement> filter : mFilters) {
	if (!filter.accept(element))
	return;
	}

	mUIJob.addImage(element);
	mImageCounter--;

	if (mImageCounter <= 0) {
	Display.getDefault().asyncExec(new Runnable() {

	public void run() {
	nextButton.setEnabled(true);
	}
	});
	}
	}

	public boolean needsMore() {
	return mImageCounter > 0;
	}

	private void scanImages() {
	nextButton.setEnabled(false);

	// reset UI components
	mUIJob.reset();
	lblPath.setText(""); //$NON-NLS-1$
	lblPlugin.setText(""); //$NON-NLS-1$
	lblWidth.setText(""); //$NON-NLS-1$
	lblHeight.setText(""); //$NON-NLS-1$
	txtReference.setText(""); //$NON-NLS-1$

	// first dispose controls
	for (final Control control : imageComposite.getChildren()) {
	control.dispose();
	}

	// then dispose images used in controls
	disposeImages();

	// initialize scan job
	if (!sourceCombo.getSelection().isEmpty()) {
	// set maximum image counter
	mImageCounter = spinMaxImages.getSelection();

	final AbstractRepository repository = (AbstractRepository) ((IStructuredSelection) sourceCombo.getSelection()).getFirstElement();
	repository.schedule();
	}
	}

	/* (non-Javadoc)
	* @see org.eclipse.ui.part.WorkbenchPart#dispose()
	*/
	@Override
	public void dispose() {
	disposeImages();
	}

	private void disposeImages() {
	for (Image image : displayedImages) {
	image.dispose();
	}
	displayedImages.clear();
	}

	private class UpdateUI extends FocusAdapter implements Runnable {

	Collection<ImageElement> mElements = new LinkedList<ImageElement>();
	String mLastPlugin = ""; //$NON-NLS-1$
	private Composite mPluginImageContainer = null;
	private final RowLayout mRowLayout = new RowLayout(SWT.HORIZONTAL);

	public UpdateUI() {
	mRowLayout.wrap = true;
	mRowLayout.marginWidth = 0;
	mRowLayout.marginHeight = 0;
	}

	public synchronized void addImage(final ImageElement element) {
	mElements.add(element);

	if (mElements.size() == 1)
	Display.getDefault().asyncExec(this);
	}

	public synchronized void run() {

	if (!mElements.isEmpty()) {
	for (final ImageElement element : mElements) {
	if (!mLastPlugin.equals(element.getPlugin())) {
	// new plug-in detected
	mLastPlugin = element.getPlugin();
	Label label = new Label(imageComposite, SWT.NONE);
	label.setText(mLastPlugin);
	label.setBackground(label.getParent().getBackground());

	if (mPluginImageContainer != null)
	mPluginImageContainer.layout();

	mPluginImageContainer = new Composite(imageComposite, SWT.NONE);
	mPluginImageContainer.setLayout(mRowLayout);
	mPluginImageContainer.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));
	mPluginImageContainer.setBackground(mPluginImageContainer.getParent().getBackground());
	}

	Button button = new Button(mPluginImageContainer, SWT.FLAT);
	Image image = new Image(getViewSite().getShell().getDisplay(), element.getImageData());
	displayedImages.add(image);
	button.setImage(image);
	button.setToolTipText(element.getPath());
	button.setData(element);
	button.addFocusListener(this);
	button.addListener(SWT.Activate, new Listener() {
	public void handleEvent(Event e) {

	}
	});
	}

	mElements.clear();

	mPluginImageContainer.layout();
	imageComposite.layout();

	Rectangle r = scrolledComposite.getClientArea();
	scrolledComposite.setMinSize(imageComposite.computeSize(r.width, SWT.DEFAULT));
	}
	}

	public void focusGained(FocusEvent e) {
	// Scroll the focused control into view
	Control child = (Control) e.widget;
	Rectangle bounds = child.getBounds();
	// Because we store the buttons in an additional composite, need to adjust bounds
	Rectangle pluginBounds = child.getParent().getBounds();
	bounds.x += pluginBounds.x;
	bounds.y += pluginBounds.y;
	Rectangle area = scrolledComposite.getClientArea();
	Point origin = scrolledComposite.getOrigin();
	if (origin.x > bounds.x)
	origin.x = Math.max(0, bounds.x);
	if (origin.y > bounds.y)
	origin.y = Math.max(0, bounds.y);
	if (origin.x + area.width < bounds.x + bounds.width)
	origin.x = Math.max(0, bounds.x + bounds.width - area.width);
	if (origin.y + area.height < bounds.y + bounds.height)
	origin.y = Math.max(0, bounds.y + bounds.height - area.height);
	scrolledComposite.setOrigin(origin);

	final Object data = e.widget.getData();
	if (data instanceof ImageElement) {

	// Example of how we could use a popup dialog instead
	// org.eclipse.core.runtime.Path path = new org.eclipse.core.runtime.Path(((ImageElement) data).getPath());
	//
	// new PopupDialog(getSite().getShell(), PopupDialog.HOVER_SHELLSTYLE, true, false, false, false, false, path.lastSegment(), "") {
	// protected Control createInfoTextArea(Composite parent) {
	//
	// Composite infoGroup = SWTFactory.createComposite(parent, 4, 1, GridData.FILL_HORIZONTAL, 0, 0);
	//
	// SWTFactory.createLabel(infoGroup, PDEUIMessages.ImageBrowserView_Path, 1);
	// lblPath = new Label(infoGroup, SWT.NONE);
	// lblPath.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));
	//
	// SWTFactory.createLabel(infoGroup, PDEUIMessages.ImageBrowserView_Width, 1);
	// lblWidth = new Label(infoGroup, SWT.NONE);
	// final GridData gd_lblWidth = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
	// gd_lblWidth.widthHint = 50;
	// lblWidth.setLayoutData(gd_lblWidth);
	//
	// SWTFactory.createLabel(infoGroup, PDEUIMessages.ImageBrowserView_Plugin, 1);
	// lblPlugin = new Label(infoGroup, SWT.NONE);
	// lblPlugin.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1));
	//
	// SWTFactory.createLabel(infoGroup, PDEUIMessages.ImageBrowserView_Height, 1);
	// lblHeight = new Label(infoGroup, SWT.NONE);
	// final GridData gd_lblHeight = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
	// gd_lblHeight.widthHint = 50;
	// lblHeight.setLayoutData(gd_lblHeight);
	//
	// SWTFactory.createLabel(infoGroup, PDEUIMessages.ImageBrowserView_Reference, 1);
	// txtReference = new Text(infoGroup, SWT.BORDER \| SWT.READ_ONLY);
	// txtReference.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 3, 1));
	//
	// lblPath.setText(((ImageElement) data).getPath());
	// lblPlugin.setText(((ImageElement) data).getFullPlugin());
	// txtReference.setText("platform:/plugin/" + ((ImageElement) data).getPlugin() + "/" + ((ImageElement) data).getPath()); //$NON-NLS-1$ //$NON-NLS-2$
	//
	// lblWidth.setText(NLS.bind(PDEUIMessages.ImageBrowserView_Pixels, Integer.toString(((ImageElement) data).getImageData().width)));
	// lblHeight.setText(NLS.bind(PDEUIMessages.ImageBrowserView_Pixels, Integer.toString(((ImageElement) data).getImageData().height)));
	//
	// return infoGroup;
	// }
	// }.open();
	//
	// StringBuffer text = new StringBuffer();
	// text.append(NLS.bind("Image Path: {0}", path.toString())).append('\n');
	// text.append(NLS.bind("Plug-in Provider: {0}", ((ImageElement) data).getFullPlugin())).append('\n');
	// text.append(NLS.bind("Reference URL: {0}", "platform:/plugin/" + ((ImageElement) data).getPlugin() + "/" + ((ImageElement) data).getPath())).append('\n'); //$NON-NLS-1$ //$NON-NLS-2$
	// text.append(NLS.bind("Width: {0} Height: {1}", Integer.toString(((ImageElement) data).getImageData().width), Integer.toString(((ImageElement) data).getImageData().height)));
	//
	// PopupDialog popup = new PopupDialog(getSite().getShell(), SWT.NONE, false, false, false, false, false, path.lastSegment(), text.toString());
	// popup.open();

	lblPath.setText(((ImageElement) data).getPath());
	lblPlugin.setText(((ImageElement) data).getFullPlugin());
	txtReference.setText("platform:/plugin/" + ((ImageElement) data).getPlugin() + "/" + ((ImageElement) data).getPath()); //$NON-NLS-1$ //$NON-NLS-2$

	lblWidth.setText(NLS.bind(PDEUIMessages.ImageBrowserView_Pixels, Integer.toString(((ImageElement) data).getImageData().width)));
	lblHeight.setText(NLS.bind(PDEUIMessages.ImageBrowserView_Pixels, Integer.toString(((ImageElement) data).getImageData().height)));

	// update source provider
	ISourceProviderService service = (ISourceProviderService) PlatformUI.getWorkbench().getService(ISourceProviderService.class);
	ISourceProvider provider = service.getSourceProvider(ActiveImageSourceProvider.ACTIVE_IMAGE);
	if (provider instanceof ActiveImageSourceProvider)
	((ActiveImageSourceProvider) provider).setImageData(((ImageElement) data));
	}
	}

	public synchronized void reset() {
	mLastPlugin = ""; //$NON-NLS-1$
	mElements.clear();
	mPluginImageContainer = null;
	}
	}
	}