Source Code Cross Referenced for PDESourceInfoProvider.java in  » IDE-Eclipse » Eclipse-plug-in-development » org » eclipse » pde » internal » ui » editor » text » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » IDE Eclipse » Eclipse plug in development » org.eclipse.pde.internal.ui.editor.text 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


01:        /*******************************************************************************
02:         * Copyright (c) 2006 IBM Corporation and others.
03:         * All rights reserved. This program and the accompanying materials
04:         * are made available under the terms of the Eclipse Public License v1.0
05:         * which accompanies this distribution, and is available at
06:         * http://www.eclipse.org/legal/epl-v10.html
07:         *
08:         * Contributors:
09:         *     IBM Corporation - initial API and implementation
10:         *******************************************************************************/package org.eclipse.pde.internal.ui.editor.text;
11:
12:        import org.eclipse.jface.text.IRegion;
13:        import org.eclipse.jface.text.ITextViewer;
14:        import org.eclipse.jface.text.Region;
15:        import org.eclipse.jface.text.information.IInformationProvider;
16:        import org.eclipse.jface.text.information.IInformationProviderExtension;
17:        import org.eclipse.pde.internal.ui.editor.PDESourcePage;
18:
19:        /**
20:         * PDESourceInfoProvider
21:         *
22:         */
23:        public class PDESourceInfoProvider implements  IInformationProvider,
24:                IInformationProviderExtension {
25:
26:            private PDESourcePage fSourcePage;
27:
28:            /**
29:             * 
30:             */
31:            public PDESourceInfoProvider(PDESourcePage sourcePage) {
32:                fSourcePage = sourcePage;
33:            }
34:
35:            /* (non-Javadoc)
36:             * @see org.eclipse.jface.text.information.IInformationProvider#getInformation(org.eclipse.jface.text.ITextViewer, org.eclipse.jface.text.IRegion)
37:             */
38:            public String getInformation(ITextViewer textViewer, IRegion subject) {
39:                // This method is deprecated.  Call the non-deprecated method
40:                return getInformation2(textViewer, subject).toString();
41:            }
42:
43:            /* (non-Javadoc)
44:             * @see org.eclipse.jface.text.information.IInformationProvider#getSubject(org.eclipse.jface.text.ITextViewer, int)
45:             */
46:            public IRegion getSubject(ITextViewer textViewer, int offset) {
47:                // Subject used in getInformation2
48:                if ((textViewer == null) || (fSourcePage == null)) {
49:                    return null;
50:                }
51:                // Get the selected region
52:                IRegion region = PDEWordFinder.findWord(textViewer
53:                        .getDocument(), offset);
54:                // Ensure the region is defined.  Define an empty one if it is not.
55:                if (region == null) {
56:                    return new Region(offset, 0);
57:                }
58:                return region;
59:            }
60:
61:            /* (non-Javadoc)
62:             * @see org.eclipse.jface.text.information.IInformationProviderExtension#getInformation2(org.eclipse.jface.text.ITextViewer, org.eclipse.jface.text.IRegion)
63:             */
64:            public Object getInformation2(ITextViewer textViewer,
65:                    IRegion subject) {
66:                // Calls setInput on the quick outline popup dialog
67:                if ((textViewer == null) || (fSourcePage == null)) {
68:                    return null;
69:                }
70:                // Get the current selection, if any
71:                Object selection = fSourcePage.getSelection();
72:                // If the input is null, then the dialog does not open
73:                // Define an empty object for no selection instead of null
74:                if (selection == null) {
75:                    selection = new Object();
76:                }
77:                return selection;
78:                // TODO: MP: QO: LOW: Determine range on MANIFEST.MF to do initial
79:                // dynamic selection.  Use IRegion.  Already implemented for plugin.xml file
80:                // see XMLContentAssistProcessor.assignRange()
81:            }
82:
83:        }
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