bundles/org.eclipse.e4.tools.emf.ui/src/org/eclipse/e4/tools/emf/ui/internal/common/component/dialogs/AbstractIconDialogWithScopeAndFilter.java - platform/eclipse.platform.ui.tools - Git at Google

 /*******************************************************************************
  *
  * Copyright (c) 2010, 2017 BestSolution.at 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:
  * Tom Schindl <tom.schindl@bestsolution.at> - initial API and implementation
  * Steven Spungin <steven@spungin.tv> - Bug 404136, Bug 424730, Bug 436281
  ******************************************************************************/
 package org.eclipse.e4.tools.emf.ui.internal.common.component.dialogs;

 import java.io.InputStream;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Timer;
 import java.util.TimerTask;

 import org.eclipse.core.databinding.observable.list.IObservableList;
 import org.eclipse.core.resources.IFile;
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.resources.IResourceVisitor;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.e4.core.contexts.IEclipseContext;
 import org.eclipse.e4.tools.emf.ui.common.IClassContributionProvider.ContributionData;
 import org.eclipse.e4.tools.emf.ui.common.IClassContributionProvider.Filter;
 import org.eclipse.e4.tools.emf.ui.common.ResourceSearchScope;
 import org.eclipse.e4.tools.emf.ui.internal.Messages;
 import org.eclipse.e4.tools.emf.ui.internal.StringMatcher;
 import org.eclipse.e4.tools.emf.ui.internal.common.ClassContributionCollector;
 import org.eclipse.e4.tools.emf.ui.internal.common.component.tabs.empty.E;
 import org.eclipse.e4.tools.emf.ui.internal.common.resourcelocator.TargetPlatformIconContributionCollector;
 import org.eclipse.jface.viewers.ComboViewer;
 import org.eclipse.jface.viewers.ISelectionChangedListener;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.jface.viewers.SelectionChangedEvent;
 import org.eclipse.jface.viewers.StructuredSelection;
 import org.eclipse.jface.viewers.StyledCellLabelProvider;
 import org.eclipse.jface.viewers.StyledString;
 import org.eclipse.jface.viewers.TableViewerColumn;
 import org.eclipse.jface.viewers.ViewerCell;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.DisposeEvent;
 import org.eclipse.swt.events.DisposeListener;
 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.Event;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Listener;
 import org.eclipse.swt.widgets.Shell;

 /**
  * A FilteredContributionDialog with additional options for icon resources.
  * Features in include
  * <ul>
  * <li>Rebuilding the viewer when row height decreases. (Workaround for an SWT limitation)
  * <li>Icon previews are displace in the first column.
  * <li>Limited the maximum image size.
  * </ul>
  *
  * @author "Steven Spungin"
  *
  * @see FilteredContributionDialog
  */
 public abstract class AbstractIconDialogWithScopeAndFilter extends FilteredContributionDialog {
 	private final IProject project;
 	private final Map<IFile, Image> icons = Collections.synchronizedMap(new HashMap<IFile, Image>());

 	static public class Entry {
 		IFile file;
 		String installLocation;
 	}

 	protected Integer maxDisplayedImageSize;
 	protected int maxImageHeight;
 	public static TargetPlatformIconContributionCollector collector;

 	public AbstractIconDialogWithScopeAndFilter(Shell parentShell, IEclipseContext context) {
 		super(parentShell, context);
 		project = context.get(IProject.class);
 	}

 	@Override
 	protected String getFilterTextMessage() {
 		return Messages.AbstractIconDialogWithScopeAndFilter_typeToStartSearch;
 	}

 	@Override
 	protected String getResourceNameText() {
 		return Messages.AbstractIconDialogWithScopeAndFilter_iconName;
 	}

 	@Override
 	protected ClassContributionCollector getCollector() {
 		if (collector == null) {
 			collector = TargetPlatformIconContributionCollector.getInstance();
 		}
 		return collector;
 	}

 	@Override
 	protected void createOptions(Composite compOptions) {
 		super.createOptions(compOptions);

 		final Label lblMaxSize = new Label(compOptions, SWT.NONE);
 		lblMaxSize.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, false));
 		lblMaxSize.setText(Messages.AbstractIconDialogWithScopeAndFilter_maxDisplayedImageSize);

 		final ComboViewer cv = new ComboViewer(compOptions);
 		cv.getCombo().setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, false, 1, 1));
 		cv.add(10);
 		cv.add(20);
 		cv.add(30);
 		cv.add(50);
 		cv.add(100);
 		cv.add(150);
 		cv.add(200);
 		maxDisplayedImageSize = 30;
 		cv.setSelection(new StructuredSelection(maxDisplayedImageSize));

 		cv.addSelectionChangedListener(new ISelectionChangedListener() {

 			@Override
 			public void selectionChanged(SelectionChangedEvent event) {
 				maxDisplayedImageSize = (Integer) ((IStructuredSelection) cv.getSelection()).getFirstElement();
 				rebuildViewer();
 				refreshSearch();
 				// combo viewer cannot make rows smaller, so we will need to
 				// rebuild it in that case.
 			}
 		});
 	}

 	@Override
 	protected void rebuildViewer() {
 		super.rebuildViewer();
 		getViewer().getTable().setHeaderVisible(true);

 		((GridData) getViewer().getTable().getLayoutData()).minimumHeight = 100;

 		final TableViewerColumn colIcon = new TableViewerColumn(getViewer(), SWT.NONE);
 		colIcon.getColumn().setText(Messages.AbstractIconDialogWithScopeAndFilter_icon);
 		final TableViewerColumn colText = new TableViewerColumn(getViewer(), SWT.NONE);
 		colText.getColumn().setText(Messages.AbstractIconDialogWithScopeAndFilter_details);

 		// resize the row height using a MeasureItem listener
 		getViewer().getTable().addListener(SWT.MeasureItem, new Listener() {
 			@Override
 			public void handleEvent(Event event) {
 				// height cannot be per row so simply set
 				event.height = maxDisplayedImageSize;
 			}
 		});

 		colIcon.setLabelProvider(new StyledCellLabelProvider() {
 			@Override
 			public void update(ViewerCell cell) {
 				IFile file;
 				if (cell.getElement() instanceof ContributionData) {
 					file = new ContributionDataFile((ContributionData) cell.getElement());
 				} else if (cell.getElement() instanceof Entry) {
 					file = ((Entry) cell.getElement()).file;
 				} else {
 					file = (IFile) cell.getElement();
 				}

 				Image img = icons.get(file);
 				if (img == null) {
 					try (InputStream in = file.getContents()) {
 						img = new Image(cell.getControl().getDisplay(), in);
 						icons.put(file, img);
 					} catch (final Exception e) {
 						// e.printStackTrace();
 						return;
 					}
 				}

 				// scale image if larger then max height
 				// also remember max width for column resizing

 				double scale1 = (double) maxDisplayedImageSize / img.getImageData().height;
 				final double scale2 = (double) maxDisplayedImageSize / img.getImageData().width;
 				if (scale2 < scale1) {
 					scale1 = scale2;
 				}
 				if (scale1 < 1) {
 					int width = (int) (img.getImageData().width * scale1);
 					if (width == 0) {
 						width = 1;
 					}
 					int height = (int) (img.getImageData().height * scale1);
 					if (height == 0) {
 						height = 1;
 					}
 					final Image img2 = new Image(img.getDevice(), img.getImageData().scaledTo(width, height));
 					img.dispose();
 					img = img2;
 					icons.put(file, img);
 				}
 				final int width = AbstractIconDialogWithScopeAndFilter.this.getViewer().getTable().getColumn(0)
 						.getWidth();
 				if (img.getImageData().width > width) {
 					AbstractIconDialogWithScopeAndFilter.this.getViewer().getTable().getColumn(0)
 					.setWidth(img.getImageData().width);
 				}
 				final int height = img.getImageData().height;
 				if (height > maxImageHeight) {
 					maxImageHeight = height;
 				}

 				cell.setImage(img);
 			}
 		});
 		colIcon.getColumn().setWidth(30);

 		colText.setLabelProvider(new StyledCellLabelProvider() {
 			@Override
 			public void update(ViewerCell cell) {
 				IFile file;
 				String installLocation = null;
 				if (cell.getElement() instanceof ContributionData) {
 					final ContributionData contributionData = (ContributionData) cell.getElement();
 					file = new ContributionDataFile(contributionData);
 					installLocation = contributionData.installLocation;
 				} else if (cell.getElement() instanceof Entry) {
 					file = ((Entry) cell.getElement()).file;
 					installLocation = ((Entry) cell.getElement()).installLocation;
 				} else {
 					file = (IFile) cell.getElement();
 				}
 				final StyledString styledString = new StyledString(file.getProjectRelativePath().toString(), null);
 				final String bundle = FilteredContributionDialog.getBundle(file);
 				if (bundle != null) {
 					styledString.append(" - " + bundle, StyledString.DECORATIONS_STYLER); //$NON-NLS-1$
 				} else if (installLocation != null) {
 					styledString.append(" - " + installLocation, StyledString.DECORATIONS_STYLER); //$NON-NLS-1$
 				}

 				cell.setText(styledString.getString());
 				cell.setStyleRanges(styledString.getStyleRanges());
 			}
 		});
 		colText.getColumn().setWidth(400);

 		getShell().addDisposeListener(new DisposeListener() {

 			@Override
 			public void widgetDisposed(DisposeEvent e) {
 				clearImages();
 			}
 		});
 	}

 	@Override
 	protected Control createDialogArea(Composite parent) {
 		final Composite comp = (Composite) super.createDialogArea(parent);
 		maxDisplayedImageSize = 20;
 		rebuildViewer();

 		return comp;
 	}

 	private IconMatchCallback callback;
 	private String returnValue;
 	private SearchThread task;

 	@Override
 	protected boolean doSearch() {

 		// if (getSearchScopes().contains(SearchScope.TARGET_PLATFORM) ||
 		// getSearchScopes().contains(SearchScope.WORKSPACE)) {
 		if (getSearchScopes().contains(ResourceSearchScope.TARGET_PLATFORM)) {
 			return false;
 		}
 		final Timer timer = new Timer(true);

 		if (callback != null) {
 			callback.cancel = true;
 		}
 		if (task != null) {
 			task.cancel();
 		}
 		task = null;

 		clearImages();

 		callback = new IconMatchCallback((IObservableList) getViewer().getInput());
 		final Filter filter = new Filter(project, getFilterTextBox().getText());
 		filter.setSearchScope(getSearchScopes());
 		filter.setBundles(getFilterBundles());
 		filter.setLocations(getFilterLocations());
 		filter.setPackages(getFilterPackages());
 		filter.setIncludeNonBundles(includeNonBundles);
 		task = new SearchThread(callback, filter);
 		timer.schedule(task, 500);
 		// }
 		return true;
 	}

 	private void clearImages() {
 		for (final Image img : icons.values()) {
 			img.dispose();
 		}
 		icons.clear();
 	}

 	@Override
 	protected void okPressed() {
 		returnValue = null;
 		IFile file = getSelectedIfile();
 		if (file != null) {
 			String installLocation = null;
 			if (file instanceof ContributionDataFile) {
 				final ContributionDataFile cdf = (ContributionDataFile) file;
 				installLocation = cdf.getContributionData().installLocation;

 			}
 			file = checkResourceAccessible(file, installLocation);
 			if (file != null) {
 				final String bundle = getBundle(file);
 				String uri;
 				uri = "platform:/plugin/" + bundle + "/" + file.getProjectRelativePath().toString(); //$NON-NLS-1$ //$NON-NLS-2$
 				returnValue = uri;
 				super.okPressed();
 			}
 		}
 	}

 	private class IconMatchCallback {
 		private volatile boolean cancel;
 		private final IObservableList list;

 		private IconMatchCallback(IObservableList list) {
 			this.list = list;
 		}

 		public void match(final IFile file, final String installLocation) {
 			if (!cancel) {
 				list.getRealm().exec(new Runnable() {

 					@Override
 					public void run() {
 						final Entry entry = new Entry();
 						entry.file = file;
 						entry.installLocation = installLocation;
 						list.add(entry);
 					}
 				});
 			}
 		}
 	}

 	private static class SearchThread extends TimerTask {
 		private final IconMatchCallback callback;
 		private final StringMatcher matcherGif;
 		private final StringMatcher matcherJpg;
 		private final StringMatcher matcherPng;
 		private final Filter filter;
 		private boolean includeNonBundles;

 		public SearchThread(IconMatchCallback callback, Filter filter) {
 			matcherGif = new StringMatcher("*" + filter.namePattern + "*.gif", true, false); //$NON-NLS-1$//$NON-NLS-2$
 			matcherJpg = new StringMatcher("*" + filter.namePattern + "*.jpg", true, false); //$NON-NLS-1$//$NON-NLS-2$
 			matcherPng = new StringMatcher("*" + filter.namePattern + "*.png", true, false); //$NON-NLS-1$//$NON-NLS-2$
 			this.callback = callback;
 			this.filter = filter;
 		}

 		@Override
 		public void run() {
 			List<IProject> projects;
 			if (filter.getSearchScope().contains(ResourceSearchScope.TARGET_PLATFORM)) {
 				// never should be here because it is cached and not run as
 				// thread
 				return;
 			} else if (filter.getSearchScope().contains(ResourceSearchScope.WORKSPACE)) {
 				projects = Arrays.asList(filter.project.getWorkspace().getRoot().getProjects());
 			} else if (filter.getSearchScope().contains(ResourceSearchScope.PROJECT)) {
 				if (filter.getSearchScope().contains(ResourceSearchScope.REFERENCES)) {
 					projects = new ArrayList<>();
 					projects.add(filter.project);
 					try {
 						for (final IProject ref : filter.project.getReferencedProjects()) {
 							projects.add(ref);
 						}
 					} catch (final CoreException e) {
 						e.printStackTrace();
 					}
 				} else {
 					projects = Arrays.asList(filter.project);
 				}
 			} else {
 				return;
 			}

 			try {
 				for (final IProject project : projects) {
 					// Only search bundles unless requested
 					if (includeNonBundles == false && filter.project.getFile("/META-INF/MANIFEST.MF").exists() == false) { //$NON-NLS-1$
 						continue;
 					}
 					project.accept(new IResourceVisitor() {

 						@Override
 						public boolean visit(IResource resource) throws CoreException {
 							if (callback.cancel) {
 								return false;
 							}

 							if (resource.getType() == IResource.FOLDER || resource.getType() == IResource.PROJECT) {
 								return true;
 							} else if (resource.getType() == IResource.FILE && !resource.isLinked()) {
 								final String path = resource.getProjectRelativePath().toString();
 								if (matcherGif.match(path) || matcherPng.match(path) || matcherJpg.match(path)) {
 									if (E.notEmpty(filter.getPackages())) {
 										if (!filter.getPackages().contains(
 												resource.getProjectRelativePath().removeLastSegments(1).toOSString())) {
 											return false;
 										}
 									}
 									if (E.notEmpty(filter.getLocations())) {
 										if (!filter.getLocations().contains(project.getLocation().toOSString())) {
 											return false;
 										}
 									}
 									if (E.notEmpty(filter.getBundles())) {
 										final String bundle = getBundle(project);
 										if (bundle == null || !filter.getBundles().contains(bundle)) {
 											return false;
 										}
 									}
 									if (!filter.isIncludeNonBundles()) {
 										final String bundle = getBundle(project);
 										if (bundle == null) {
 											return false;
 										}

 									}
 									callback.match((IFile) resource, project.getLocation().toOSString());
 								}
 							}
 							return false;
 						}

 					});
 				}
 			} catch (final CoreException e) {
 				e.printStackTrace();
 			}
 		}
 	}

 	public String getValue() {
 		return returnValue;
 	}
 }
	/*******************************************************************************
	*
	* Copyright (c) 2010, 2017 BestSolution.at 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:
	* Tom Schindl <tom.schindl@bestsolution.at> - initial API and implementation
	* Steven Spungin <steven@spungin.tv> - Bug 404136, Bug 424730, Bug 436281
	******************************************************************************/
	package org.eclipse.e4.tools.emf.ui.internal.common.component.dialogs;

	import java.io.InputStream;
	import java.util.ArrayList;
	import java.util.Arrays;
	import java.util.Collections;
	import java.util.HashMap;
	import java.util.List;
	import java.util.Map;
	import java.util.Timer;
	import java.util.TimerTask;

	import org.eclipse.core.databinding.observable.list.IObservableList;
	import org.eclipse.core.resources.IFile;
	import org.eclipse.core.resources.IProject;
	import org.eclipse.core.resources.IResource;
	import org.eclipse.core.resources.IResourceVisitor;
	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.e4.core.contexts.IEclipseContext;
	import org.eclipse.e4.tools.emf.ui.common.IClassContributionProvider.ContributionData;
	import org.eclipse.e4.tools.emf.ui.common.IClassContributionProvider.Filter;
	import org.eclipse.e4.tools.emf.ui.common.ResourceSearchScope;
	import org.eclipse.e4.tools.emf.ui.internal.Messages;
	import org.eclipse.e4.tools.emf.ui.internal.StringMatcher;
	import org.eclipse.e4.tools.emf.ui.internal.common.ClassContributionCollector;
	import org.eclipse.e4.tools.emf.ui.internal.common.component.tabs.empty.E;
	import org.eclipse.e4.tools.emf.ui.internal.common.resourcelocator.TargetPlatformIconContributionCollector;
	import org.eclipse.jface.viewers.ComboViewer;
	import org.eclipse.jface.viewers.ISelectionChangedListener;
	import org.eclipse.jface.viewers.IStructuredSelection;
	import org.eclipse.jface.viewers.SelectionChangedEvent;
	import org.eclipse.jface.viewers.StructuredSelection;
	import org.eclipse.jface.viewers.StyledCellLabelProvider;
	import org.eclipse.jface.viewers.StyledString;
	import org.eclipse.jface.viewers.TableViewerColumn;
	import org.eclipse.jface.viewers.ViewerCell;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.DisposeEvent;
	import org.eclipse.swt.events.DisposeListener;
	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.Event;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Listener;
	import org.eclipse.swt.widgets.Shell;

	/**
	* A FilteredContributionDialog with additional options for icon resources.
	* Features in include
	* <ul>
	* <li>Rebuilding the viewer when row height decreases. (Workaround for an SWT limitation)
	* <li>Icon previews are displace in the first column.
	* <li>Limited the maximum image size.
	* </ul>
	*
	* @author "Steven Spungin"
	*
	* @see FilteredContributionDialog
	*/
	public abstract class AbstractIconDialogWithScopeAndFilter extends FilteredContributionDialog {
	private final IProject project;
	private final Map<IFile, Image> icons = Collections.synchronizedMap(new HashMap<IFile, Image>());

	static public class Entry {
	IFile file;
	String installLocation;
	}

	protected Integer maxDisplayedImageSize;
	protected int maxImageHeight;
	public static TargetPlatformIconContributionCollector collector;

	public AbstractIconDialogWithScopeAndFilter(Shell parentShell, IEclipseContext context) {
	super(parentShell, context);
	project = context.get(IProject.class);
	}

	@Override
	protected String getFilterTextMessage() {
	return Messages.AbstractIconDialogWithScopeAndFilter_typeToStartSearch;
	}

	@Override
	protected String getResourceNameText() {
	return Messages.AbstractIconDialogWithScopeAndFilter_iconName;
	}

	@Override
	protected ClassContributionCollector getCollector() {
	if (collector == null) {
	collector = TargetPlatformIconContributionCollector.getInstance();
	}
	return collector;
	}

	@Override
	protected void createOptions(Composite compOptions) {
	super.createOptions(compOptions);

	final Label lblMaxSize = new Label(compOptions, SWT.NONE);
	lblMaxSize.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, false));
	lblMaxSize.setText(Messages.AbstractIconDialogWithScopeAndFilter_maxDisplayedImageSize);

	final ComboViewer cv = new ComboViewer(compOptions);
	cv.getCombo().setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, false, 1, 1));
	cv.add(10);
	cv.add(20);
	cv.add(30);
	cv.add(50);
	cv.add(100);
	cv.add(150);
	cv.add(200);
	maxDisplayedImageSize = 30;
	cv.setSelection(new StructuredSelection(maxDisplayedImageSize));

	cv.addSelectionChangedListener(new ISelectionChangedListener() {

	@Override
	public void selectionChanged(SelectionChangedEvent event) {
	maxDisplayedImageSize = (Integer) ((IStructuredSelection) cv.getSelection()).getFirstElement();
	rebuildViewer();
	refreshSearch();
	// combo viewer cannot make rows smaller, so we will need to
	// rebuild it in that case.
	}
	});
	}

	@Override
	protected void rebuildViewer() {
	super.rebuildViewer();
	getViewer().getTable().setHeaderVisible(true);

	((GridData) getViewer().getTable().getLayoutData()).minimumHeight = 100;

	final TableViewerColumn colIcon = new TableViewerColumn(getViewer(), SWT.NONE);
	colIcon.getColumn().setText(Messages.AbstractIconDialogWithScopeAndFilter_icon);
	final TableViewerColumn colText = new TableViewerColumn(getViewer(), SWT.NONE);
	colText.getColumn().setText(Messages.AbstractIconDialogWithScopeAndFilter_details);

	// resize the row height using a MeasureItem listener
	getViewer().getTable().addListener(SWT.MeasureItem, new Listener() {
	@Override
	public void handleEvent(Event event) {
	// height cannot be per row so simply set
	event.height = maxDisplayedImageSize;
	}
	});

	colIcon.setLabelProvider(new StyledCellLabelProvider() {
	@Override
	public void update(ViewerCell cell) {
	IFile file;
	if (cell.getElement() instanceof ContributionData) {
	file = new ContributionDataFile((ContributionData) cell.getElement());
	} else if (cell.getElement() instanceof Entry) {
	file = ((Entry) cell.getElement()).file;
	} else {
	file = (IFile) cell.getElement();
	}

	Image img = icons.get(file);
	if (img == null) {
	try (InputStream in = file.getContents()) {
	img = new Image(cell.getControl().getDisplay(), in);
	icons.put(file, img);
	} catch (final Exception e) {
	// e.printStackTrace();
	return;
	}
	}

	// scale image if larger then max height
	// also remember max width for column resizing

	double scale1 = (double) maxDisplayedImageSize / img.getImageData().height;
	final double scale2 = (double) maxDisplayedImageSize / img.getImageData().width;
	if (scale2 < scale1) {
	scale1 = scale2;
	}
	if (scale1 < 1) {
	int width = (int) (img.getImageData().width * scale1);
	if (width == 0) {
	width = 1;
	}
	int height = (int) (img.getImageData().height * scale1);
	if (height == 0) {
	height = 1;
	}
	final Image img2 = new Image(img.getDevice(), img.getImageData().scaledTo(width, height));
	img.dispose();
	img = img2;
	icons.put(file, img);
	}
	final int width = AbstractIconDialogWithScopeAndFilter.this.getViewer().getTable().getColumn(0)
	.getWidth();
	if (img.getImageData().width > width) {
	AbstractIconDialogWithScopeAndFilter.this.getViewer().getTable().getColumn(0)
	.setWidth(img.getImageData().width);
	}
	final int height = img.getImageData().height;
	if (height > maxImageHeight) {
	maxImageHeight = height;
	}

	cell.setImage(img);
	}
	});
	colIcon.getColumn().setWidth(30);

	colText.setLabelProvider(new StyledCellLabelProvider() {
	@Override
	public void update(ViewerCell cell) {
	IFile file;
	String installLocation = null;
	if (cell.getElement() instanceof ContributionData) {
	final ContributionData contributionData = (ContributionData) cell.getElement();
	file = new ContributionDataFile(contributionData);
	installLocation = contributionData.installLocation;
	} else if (cell.getElement() instanceof Entry) {
	file = ((Entry) cell.getElement()).file;
	installLocation = ((Entry) cell.getElement()).installLocation;
	} else {
	file = (IFile) cell.getElement();
	}
	final StyledString styledString = new StyledString(file.getProjectRelativePath().toString(), null);
	final String bundle = FilteredContributionDialog.getBundle(file);
	if (bundle != null) {
	styledString.append(" - " + bundle, StyledString.DECORATIONS_STYLER); //$NON-NLS-1$
	} else if (installLocation != null) {
	styledString.append(" - " + installLocation, StyledString.DECORATIONS_STYLER); //$NON-NLS-1$
	}

	cell.setText(styledString.getString());
	cell.setStyleRanges(styledString.getStyleRanges());
	}
	});
	colText.getColumn().setWidth(400);

	getShell().addDisposeListener(new DisposeListener() {

	@Override
	public void widgetDisposed(DisposeEvent e) {
	clearImages();
	}
	});
	}

	@Override
	protected Control createDialogArea(Composite parent) {
	final Composite comp = (Composite) super.createDialogArea(parent);
	maxDisplayedImageSize = 20;
	rebuildViewer();

	return comp;
	}

	private IconMatchCallback callback;
	private String returnValue;
	private SearchThread task;

	@Override
	protected boolean doSearch() {

	// if (getSearchScopes().contains(SearchScope.TARGET_PLATFORM) \|\|
	// getSearchScopes().contains(SearchScope.WORKSPACE)) {
	if (getSearchScopes().contains(ResourceSearchScope.TARGET_PLATFORM)) {
	return false;
	}
	final Timer timer = new Timer(true);

	if (callback != null) {
	callback.cancel = true;
	}
	if (task != null) {
	task.cancel();
	}
	task = null;

	clearImages();

	callback = new IconMatchCallback((IObservableList) getViewer().getInput());
	final Filter filter = new Filter(project, getFilterTextBox().getText());
	filter.setSearchScope(getSearchScopes());
	filter.setBundles(getFilterBundles());
	filter.setLocations(getFilterLocations());
	filter.setPackages(getFilterPackages());
	filter.setIncludeNonBundles(includeNonBundles);
	task = new SearchThread(callback, filter);
	timer.schedule(task, 500);
	// }
	return true;
	}

	private void clearImages() {
	for (final Image img : icons.values()) {
	img.dispose();
	}
	icons.clear();
	}

	@Override
	protected void okPressed() {
	returnValue = null;
	IFile file = getSelectedIfile();
	if (file != null) {
	String installLocation = null;
	if (file instanceof ContributionDataFile) {
	final ContributionDataFile cdf = (ContributionDataFile) file;
	installLocation = cdf.getContributionData().installLocation;

	}
	file = checkResourceAccessible(file, installLocation);
	if (file != null) {
	final String bundle = getBundle(file);
	String uri;
	uri = "platform:/plugin/" + bundle + "/" + file.getProjectRelativePath().toString(); //$NON-NLS-1$ //$NON-NLS-2$
	returnValue = uri;
	super.okPressed();
	}
	}
	}

	private class IconMatchCallback {
	private volatile boolean cancel;
	private final IObservableList list;

	private IconMatchCallback(IObservableList list) {
	this.list = list;
	}

	public void match(final IFile file, final String installLocation) {
	if (!cancel) {
	list.getRealm().exec(new Runnable() {

	@Override
	public void run() {
	final Entry entry = new Entry();
	entry.file = file;
	entry.installLocation = installLocation;
	list.add(entry);
	}
	});
	}
	}
	}

	private static class SearchThread extends TimerTask {
	private final IconMatchCallback callback;
	private final StringMatcher matcherGif;
	private final StringMatcher matcherJpg;
	private final StringMatcher matcherPng;
	private final Filter filter;
	private boolean includeNonBundles;

	public SearchThread(IconMatchCallback callback, Filter filter) {
	matcherGif = new StringMatcher("" + filter.namePattern + ".gif", true, false); //$NON-NLS-1$//$NON-NLS-2$
	matcherJpg = new StringMatcher("" + filter.namePattern + ".jpg", true, false); //$NON-NLS-1$//$NON-NLS-2$
	matcherPng = new StringMatcher("" + filter.namePattern + ".png", true, false); //$NON-NLS-1$//$NON-NLS-2$
	this.callback = callback;
	this.filter = filter;
	}

	@Override
	public void run() {
	List<IProject> projects;
	if (filter.getSearchScope().contains(ResourceSearchScope.TARGET_PLATFORM)) {
	// never should be here because it is cached and not run as
	// thread
	return;
	} else if (filter.getSearchScope().contains(ResourceSearchScope.WORKSPACE)) {
	projects = Arrays.asList(filter.project.getWorkspace().getRoot().getProjects());
	} else if (filter.getSearchScope().contains(ResourceSearchScope.PROJECT)) {
	if (filter.getSearchScope().contains(ResourceSearchScope.REFERENCES)) {
	projects = new ArrayList<>();
	projects.add(filter.project);
	try {
	for (final IProject ref : filter.project.getReferencedProjects()) {
	projects.add(ref);
	}
	} catch (final CoreException e) {
	e.printStackTrace();
	}
	} else {
	projects = Arrays.asList(filter.project);
	}
	} else {
	return;
	}

	try {
	for (final IProject project : projects) {
	// Only search bundles unless requested
	if (includeNonBundles == false && filter.project.getFile("/META-INF/MANIFEST.MF").exists() == false) { //$NON-NLS-1$
	continue;
	}
	project.accept(new IResourceVisitor() {

	@Override
	public boolean visit(IResource resource) throws CoreException {
	if (callback.cancel) {
	return false;
	}

	if (resource.getType() == IResource.FOLDER \|\| resource.getType() == IResource.PROJECT) {
	return true;
	} else if (resource.getType() == IResource.FILE && !resource.isLinked()) {
	final String path = resource.getProjectRelativePath().toString();
	if (matcherGif.match(path) \|\| matcherPng.match(path) \|\| matcherJpg.match(path)) {
	if (E.notEmpty(filter.getPackages())) {
	if (!filter.getPackages().contains(
	resource.getProjectRelativePath().removeLastSegments(1).toOSString())) {
	return false;
	}
	}
	if (E.notEmpty(filter.getLocations())) {
	if (!filter.getLocations().contains(project.getLocation().toOSString())) {
	return false;
	}
	}
	if (E.notEmpty(filter.getBundles())) {
	final String bundle = getBundle(project);
	if (bundle == null \|\| !filter.getBundles().contains(bundle)) {
	return false;
	}
	}
	if (!filter.isIncludeNonBundles()) {
	final String bundle = getBundle(project);
	if (bundle == null) {
	return false;
	}

	}
	callback.match((IFile) resource, project.getLocation().toOSString());
	}
	}
	return false;
	}

	});
	}
	} catch (final CoreException e) {
	e.printStackTrace();
	}
	}
	}

	public String getValue() {
	return returnValue;
	}
	}