Java tutorial
/* ****************************************************************************** * Copyright (c) 2006-2012 XMind Ltd. and others. * * This file is a part of XMind 3. XMind releases 3 and * above are dual-licensed under the Eclipse Public License (EPL), * which is available at http://www.eclipse.org/legal/epl-v10.html * and the GNU Lesser General Public License (LGPL), * which is available at http://www.gnu.org/licenses/lgpl.html * See http://www.xmind.net/license.html for details. * * Contributors: * XMind Ltd. - initial API and implementation *******************************************************************************/ package org.xmind.ui.internal; import java.io.File; import java.net.URL; import java.util.HashMap; import java.util.Map; import org.eclipse.jface.action.IAction; import org.eclipse.jface.resource.ImageDescriptor; import org.eclipse.jface.util.Util; import org.eclipse.swt.SWT; import org.eclipse.swt.graphics.Cursor; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.graphics.ImageData; import org.eclipse.swt.graphics.ImageLoader; import org.eclipse.swt.program.Program; import org.eclipse.swt.widgets.Display; import org.eclipse.ui.internal.util.BundleUtility; import org.xmind.core.Core; import org.xmind.core.IBoundary; import org.xmind.core.IRelationship; import org.xmind.core.ISheet; import org.xmind.core.ITopic; import org.xmind.core.IWorkbook; import org.xmind.core.util.FileUtils; import org.xmind.ui.mindmap.IMindMapImages; import org.xmind.ui.mindmap.MindMapUI; import org.xmind.ui.resources.ImageUtils; public class MindMapImages implements IMindMapImages { private Map<String, ImageDescriptor> descriptors = new HashMap<String, ImageDescriptor>(); private Map<Object, Cursor> cursors = new HashMap<Object, Cursor>(); /* package */ MindMapImages() { } public ImageDescriptor get(String fullPath) { ImageDescriptor descriptor = descriptors.get(fullPath); if (descriptor == null) { descriptor = createImageDescriptor(fullPath); if (descriptor != null) descriptors.put(fullPath, descriptor); } return descriptor; } private ImageDescriptor createImageDescriptor(String path) { URL url = BundleUtility.find(MindMapUI.PLUGIN_ID, path); if (url != null) return ImageDescriptor.createFromURL(url); return null; } public ImageDescriptor get(String fileName, String mainPath) { return get(mainPath + fileName); } public ImageDescriptor get(String fileName, boolean enabled) { String mainPath = enabled ? PATH_E : PATH_D; return get(fileName, mainPath); } /* * (non-Javadoc) * @see * org.xmind.ui.mindmap.IMindMapImages#getTopicIcon(org.xmind.core.ITopic, * boolean) */ public ImageDescriptor getTopicIcon(ITopic topic, boolean enabled) { String type = topic.getType(); if (ITopic.ROOT.equals(type)) { return get(CENTRAL, enabled); } if (ITopic.SUMMARY.equals(type)) { return get(SUMMARY_TOPIC, enabled); } if (ITopic.DETACHED.equals(type)) { return get(FLOATING, enabled); } if (ITopic.CALLOUT.equals(type)) { return get(CALLOUT, enabled); } ITopic parent = topic.getParent(); if (parent != null && parent.isRoot()) { return get(MAIN, enabled); } return get(TOPIC, enabled); } /* * (non-Javadoc) * @see org.xmind.ui.mindmap.IMindMapImages#getElementIcon(java.lang.Object) */ public ImageDescriptor getElementIcon(Object element, boolean enabled) { if (element instanceof ITopic) { ITopic topic = (ITopic) element; String hyperlink = topic.getHyperlink(); if (hyperlink != null) { IAction action = MindMapUI.getProtocolManager().createOpenHyperlinkAction(topic, hyperlink); if (action != null && action.getImageDescriptor() != null) return action.getImageDescriptor(); } return getTopicIcon(topic, enabled); } else if (element instanceof ISheet) { return get(SHEET, enabled); } else if (element instanceof IWorkbook) { return get(WORKBOOK, enabled); } else if (element instanceof IBoundary) { return get(BOUNDARY, enabled); } else if (element instanceof IRelationship) { return get(RELATIONSHIP, enabled); } return null; } public ImageDescriptor getWizBan(String fileName) { return get(fileName, PATH_WIZ); } public Cursor getCursor(CursorFactory factory) { if (factory == null) return null; String id = factory.getId(); if (id == null) return null; Cursor cursor = cursors.get(id); if (cursor == null) { cursor = factory.createCursor(this); if (cursor != null) cursors.put(id, cursor); } return cursor; } public Cursor createCursor(String name, int hotX, int hotY) { ImageDescriptor sourceDesc = get(name + ".bmp", PATH_POINTERS); //$NON-NLS-1$ if (sourceDesc == null) return null; ImageData source = sourceDesc.getImageData(); if (source == null) return null; ImageDescriptor maskDesc = get(name + "_mask.bmp", PATH_POINTERS); //$NON-NLS-1$ if (maskDesc != null) { ImageData mask = maskDesc.getImageData(); if (mask != null) { return new Cursor(null, source, mask, hotX, hotY); } } return new Cursor(null, source, hotX, hotY); } public ImageDescriptor getFileIcon(String path) { return getFileIcon(path, false); } public ImageDescriptor getFileIcon(String path, boolean returnNullIfUnidentifiable) { String extension = FileUtils.getExtension(path); if (extension == null || "".equals(extension)) { //$NON-NLS-1$ if (new File(path).isDirectory()) { return get(OPEN, true); } if (returnNullIfUnidentifiable) return null; return get(UNKNOWN_FILE, true); } String key = "org.xmind.ui.fileIcon" + extension; //$NON-NLS-1$ ImageDescriptor image = ImageUtils.getDescriptor(key); if (image == null) { image = createFileIcon(extension, new File(path).isDirectory(), returnNullIfUnidentifiable); ImageUtils.putImageDescriptor(key, image); } return image; } private ImageDescriptor createFileIcon(String fileExtension, boolean directory, boolean returnNullIfUnidentifiable) { Program p = Program.findProgram(fileExtension); if (p != null) { ImageData data = p.getImageData(); if (data != null) { if (Util.isMac()) return ImageUtils.scaleImage(Display.getCurrent(), ImageDescriptor.createFromImageData(data), 16, 16); //fix bug: icon has black shadow in Windows. String tempPath = getTempFileIconPath(); ImageLoader imageLoader = new ImageLoader(); imageLoader.data = new ImageData[] { data }; imageLoader.save(tempPath, SWT.IMAGE_ICO); Image image = new Image(Display.getCurrent(), tempPath); return ImageDescriptor.createFromImage(image); } } if (directory) return get(OPEN, true); if (returnNullIfUnidentifiable) return null; return get(UNKNOWN_FILE, true); } private String getTempFileIconPath() { String tempFile = Core.getWorkspace().getTempFile("fileIcons/" //$NON-NLS-1$ + Core.getIdFactory().createId() + ".ico"); //$NON-NLS-1$ return tempFile; } }