| /******************************************************************************* |
| * Copyright (c) 2000, 2007 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 org.eclipse.pde.internal.ui.util; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileNotFoundException; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.ArrayList; |
| import java.util.Enumeration; |
| import java.util.Hashtable; |
| import java.util.zip.ZipEntry; |
| import java.util.zip.ZipFile; |
| |
| import org.eclipse.jface.resource.ImageDescriptor; |
| import org.eclipse.jface.viewers.ITableLabelProvider; |
| import org.eclipse.jface.viewers.LabelProvider; |
| import org.eclipse.pde.core.plugin.IPluginModelBase; |
| import org.eclipse.pde.core.plugin.PluginRegistry; |
| import org.eclipse.pde.internal.ui.PDEPluginImages; |
| import org.eclipse.swt.graphics.Image; |
| import org.eclipse.swt.graphics.ImageData; |
| import org.eclipse.ui.plugin.AbstractUIPlugin; |
| |
| public class SharedLabelProvider |
| extends LabelProvider |
| implements ITableLabelProvider { |
| public static final int F_ERROR = 1; |
| public static final int F_WARNING = 2; |
| public static final int F_EXPORT = 4; |
| public static final int F_EDIT = 8; |
| public static final int F_BINARY = 16; |
| public static final int F_EXTERNAL = 32; |
| public static final int F_JAVA = 64; |
| public static final int F_JAR = 128; |
| public static final int F_PROJECT = 256; |
| Hashtable images = new Hashtable(); |
| ArrayList consumers = new ArrayList(); |
| private Image fBlankImage; |
| |
| public SharedLabelProvider() { |
| |
| } |
| public void connect(Object consumer) { |
| if (!consumers.contains(consumer)) |
| consumers.add(consumer); |
| } |
| public void disconnect(Object consumer) { |
| consumers.remove(consumer); |
| if (consumers.size() == 0) { |
| dispose(); |
| } |
| } |
| public void dispose() { |
| if (consumers.size() == 0) { |
| for (Enumeration elements = images.elements(); elements.hasMoreElements();) { |
| ((Image)elements.nextElement()).dispose(); |
| } |
| images.clear(); |
| if (fBlankImage != null) { |
| fBlankImage.dispose(); |
| fBlankImage = null; |
| } |
| } |
| } |
| |
| public Image get(ImageDescriptor desc) { |
| return get(desc, 0); |
| } |
| |
| public Image get(ImageDescriptor desc, int flags) { |
| Object key = desc; |
| |
| if (flags != 0) { |
| key = getKey(desc.hashCode(), flags); |
| } |
| Image image = (Image) images.get(key); |
| if (image == null) { |
| image = createImage(desc, flags); |
| images.put(key, image); |
| } |
| return image; |
| } |
| |
| public Image get(Image image, int flags) { |
| if (flags==0) return image; |
| String key = getKey(image.hashCode(), flags); |
| Image resultImage = (Image)images.get(key); |
| if (resultImage == null) { |
| resultImage = createImage(image, flags); |
| images.put(key, resultImage); |
| } |
| return resultImage; |
| } |
| |
| private String getKey(long hashCode, int flags) { |
| return (""+hashCode) + ":"+flags; //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| |
| private Image createImage(ImageDescriptor baseDesc, int flags) { |
| if (flags == 0) { |
| return baseDesc.createImage(); |
| } |
| ImageDescriptor[] lowerLeft = getLowerLeftOverlays(flags); |
| ImageDescriptor[] upperRight = getUpperRightOverlays(flags); |
| ImageDescriptor[] lowerRight = getLowerRightOverlays(flags); |
| ImageDescriptor[] upperLeft = getUpperLeftOverlays(flags); |
| OverlayIcon compDesc = |
| new OverlayIcon( |
| baseDesc, |
| new ImageDescriptor[][] { upperRight, lowerRight, lowerLeft, upperLeft }); |
| return compDesc.createImage(); |
| } |
| |
| private Image createImage(Image baseImage, int flags) { |
| if (flags == 0) { |
| return baseImage; |
| } |
| ImageDescriptor[] lowerLeft = getLowerLeftOverlays(flags); |
| ImageDescriptor[] upperRight = getUpperRightOverlays(flags); |
| ImageDescriptor[] lowerRight = getLowerRightOverlays(flags); |
| ImageDescriptor[] upperLeft = getUpperLeftOverlays(flags); |
| ImageOverlayIcon compDesc = |
| new ImageOverlayIcon( |
| baseImage, |
| new ImageDescriptor[][] { upperRight, lowerRight, lowerLeft, upperLeft }); |
| return compDesc.createImage(); |
| } |
| |
| private ImageDescriptor[] getLowerLeftOverlays(int flags) { |
| if ((flags & F_ERROR) != 0) |
| return new ImageDescriptor[] { PDEPluginImages.DESC_ERROR_CO }; |
| if ((flags & F_WARNING) != 0) |
| return new ImageDescriptor[] { PDEPluginImages.DESC_WARNING_CO }; |
| return null; |
| } |
| |
| private ImageDescriptor[] getUpperRightOverlays(int flags) { |
| if ((flags & F_EXPORT) != 0) |
| return new ImageDescriptor[] { PDEPluginImages.DESC_EXPORT_CO }; |
| if ((flags & F_EDIT) != 0) |
| return new ImageDescriptor[] { PDEPluginImages.DESC_DOC_CO }; |
| if ((flags & F_JAVA) != 0) |
| return new ImageDescriptor[] { PDEPluginImages.DESC_JAVA_CO }; |
| return null; |
| } |
| |
| private ImageDescriptor[] getLowerRightOverlays(int flags) { |
| if ((flags & F_JAR) != 0) |
| return new ImageDescriptor[] { PDEPluginImages.DESC_JAR_CO }; |
| if ((flags & F_PROJECT) != 0) |
| return new ImageDescriptor[] { PDEPluginImages.DESC_PROJECT_CO }; |
| return null; |
| } |
| |
| private ImageDescriptor[] getUpperLeftOverlays(int flags) { |
| if ((flags & F_EXTERNAL) != 0) |
| return new ImageDescriptor[] { PDEPluginImages.DESC_EXTERNAL_CO }; |
| if ((flags & F_BINARY) != 0) |
| return new ImageDescriptor[] { PDEPluginImages.DESC_BINARY_CO }; |
| return null; |
| } |
| |
| public String getColumnText(Object obj, int index) { |
| return getText(obj); |
| } |
| public Image getColumnImage(Object obj, int index) { |
| return getImage(obj); |
| } |
| |
| public Image getImageFromPlugin(String bundleID, String path) { |
| ImageDescriptor desc = AbstractUIPlugin.imageDescriptorFromPlugin(bundleID, path); |
| return (desc != null) ? get(desc) : getBlankImage(); |
| } |
| |
| |
| public Image getImageFromPlugin(IPluginModelBase model, String relativePath) { |
| String platform = "platform:/plugin/"; //$NON-NLS-1$ |
| if (relativePath.startsWith(platform)) { |
| relativePath = relativePath.substring(platform.length()); |
| int index = relativePath.indexOf('/'); |
| if (index == -1) |
| return null; |
| model = PluginRegistry.findModel(relativePath.substring(0, index)); |
| if (model == null) |
| return null; |
| relativePath = relativePath.substring(index + 1); |
| } |
| |
| String location = model.getInstallLocation(); |
| if (location == null) |
| return null; |
| |
| File pluginLocation = new File(location); |
| InputStream stream = null; |
| ZipFile jarFile = null; |
| try { |
| if (pluginLocation.isDirectory()) { |
| File file = new File(pluginLocation, relativePath); |
| if (file.exists()) |
| stream = new FileInputStream(file); |
| else if (relativePath.length() > 5 |
| && relativePath.startsWith("$nl$/")) { //$NON-NLS-1$ |
| file = new File(pluginLocation, relativePath.substring(5)); |
| if (file.exists()) |
| stream = new FileInputStream(file); |
| } |
| } else { |
| jarFile = new ZipFile(pluginLocation, ZipFile.OPEN_READ); |
| ZipEntry manifestEntry = jarFile.getEntry(relativePath); |
| if (manifestEntry != null) { |
| stream = jarFile.getInputStream(manifestEntry); |
| } else if (relativePath.length() > 5 |
| && relativePath.startsWith("$nl$/")) { //$NON-NLS-1$ |
| manifestEntry = jarFile.getEntry(relativePath.substring(5)); |
| if (manifestEntry != null) { |
| stream = jarFile.getInputStream(manifestEntry); |
| } |
| } |
| } |
| if (stream != null) { |
| ImageDescriptor desc = ImageDescriptor.createFromImageData(new ImageData(stream)); |
| return get(desc); |
| } |
| } catch (FileNotFoundException e) { |
| } catch (IOException e) { |
| } finally { |
| try { |
| if (stream != null) |
| stream.close(); |
| if (jarFile != null) |
| jarFile.close(); |
| } catch (IOException e) { |
| } |
| } |
| return getBlankImage(); |
| } |
| |
| public Image getBlankImage() { |
| if (fBlankImage == null) |
| fBlankImage = ImageDescriptor.getMissingImageDescriptor().createImage(); |
| return fBlankImage; |
| } |
| } |