001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: *
026: * The Original Software is NetBeans. The Initial Developer of the Original
027: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
028: * Microsystems, Inc. All Rights Reserved.
029: *
030: * If you wish your version of this file to be governed by only the CDDL
031: * or only the GPL Version 2, indicate your decision by adding
032: * "[Contributor] elects to include this software in this distribution
033: * under the [CDDL or GPL Version 2] license." If you do not indicate a
034: * single choice of license, a recipient has the option to distribute
035: * your version of this file under either the CDDL, the GPL Version 2 or
036: * to extend the choice of license to its licensees as provided above.
037: * However, if you add GPL Version 2 code and therefore, elected the GPL
038: * Version 2 license, then the option applies only if the new code is
039: * made subject to such option by the copyright holder.
040: */
041:
042: package org.netbeans.modules.image;
043:
044: import javax.imageio.ImageIO;
045: import org.openide.filesystems.FileObject;
046: import org.openide.loaders.DataObjectExistsException;
047: import org.openide.loaders.ExtensionList;
048: import org.openide.loaders.MultiDataObject;
049: import org.openide.loaders.UniFileLoader;
050: import org.openide.util.NbBundle;
051:
052: /**
053: * Data loader which recognizes image files.
054: * @author Petr Hamernik, Jaroslav Tulach
055: * @author Marian Petras
056: */
057: public class ImageDataLoader extends UniFileLoader {
058:
059: /** Generated serial version UID. */
060: static final long serialVersionUID = -8188309025795898449L;
061:
062: /** MIME-type of BMP files */
063: private static final String BMP_MIME_TYPE = "image/bmp"; //NOI18N
064: /** is BMP format support status known? */
065: private static boolean bmpSupportStatusKnown = false;
066:
067: /** Creates new image loader. */
068: public ImageDataLoader() {
069: // Set the representation class.
070: super ("org.netbeans.modules.image.ImageDataObject"); // NOI18N
071:
072: ExtensionList ext = new ExtensionList();
073: ext.addMimeType("image/gif"); //NOI18N
074: ext.addMimeType("image/jpeg"); //NOI18N
075: ext.addMimeType("image/png"); //NOI18N
076: setExtensions(ext);
077: }
078:
079: protected FileObject findPrimaryFile(FileObject fo) {
080: FileObject primFile = super .findPrimaryFile(fo);
081:
082: if ((primFile == null) && !bmpSupportStatusKnown
083: && !fo.isFolder()
084: && fo.getMIMEType().equals(BMP_MIME_TYPE)) {
085: try {
086: if (ImageIO.getImageReadersByMIMEType(BMP_MIME_TYPE)
087: .hasNext()) {
088: getExtensions().addMimeType(BMP_MIME_TYPE);
089: primFile = fo;
090: }
091: } finally {
092: bmpSupportStatusKnown = true;
093: }
094: }
095:
096: return primFile;
097: }
098:
099: /** Gets default display name. Overrides superclass method. */
100: protected String defaultDisplayName() {
101: return NbBundle.getBundle(ImageDataLoader.class).getString(
102: "PROP_ImageLoader_Name");
103: }
104:
105: /**
106: * This methods uses the layer action context so it returns
107: * a non-<code>null</code> value.
108: *
109: * @return name of the context on layer files to read/write actions to
110: */
111: protected String actionsContext() {
112: return "Loaders/image/png-gif-jpeg-bmp/Actions/"; //NOI18N
113: }
114:
115: /** Create the image data object.
116: * @param primaryFile the primary file (e.g. <code>*.gif</code>)
117: * @return the data object for this file
118: * @exception DataObjectExistsException if the primary file already has a data object
119: * @exception java.io.IOException should not be thrown
120: */
121: protected MultiDataObject createMultiObject(FileObject primaryFile)
122: throws DataObjectExistsException, java.io.IOException {
123: return new ImageDataObject(primaryFile, this);
124: }
125:
126: }
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