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1
11 package org.eclipse.jdt.internal.ui.preferences;
12
13 import java.util.Iterator  ;
14
15 import org.eclipse.swt.graphics.Color;
16 import org.eclipse.swt.graphics.RGB;
17
18 import org.eclipse.jface.preference.IPreferenceStore;
19 import org.eclipse.jface.preference.PreferenceConverter;
20
21 import org.eclipse.jface.text.BadLocationException;
22 import org.eclipse.jface.text.IDocument;
23 import org.eclipse.jface.text.IRegion;
24 import org.eclipse.jface.text.ITextHover;
25 import org.eclipse.jface.text.ITextViewer;
26 import org.eclipse.jface.text.contentassist.ContentAssistant;
27 import org.eclipse.jface.text.contentassist.IContentAssistant;
28 import org.eclipse.jface.text.source.ISourceViewer;
29 import org.eclipse.jface.text.templates.TemplateContextType;
30 import org.eclipse.jface.text.templates.TemplateVariableResolver;
31
32 import org.eclipse.ui.texteditor.ITextEditor;
33
34 import org.eclipse.jdt.ui.PreferenceConstants;
35 import org.eclipse.jdt.ui.text.IColorManager;
36 import org.eclipse.jdt.ui.text.IJavaPartitions;
37 import org.eclipse.jdt.ui.text.JavaTextTools;
38
39 import org.eclipse.jdt.internal.ui.JavaPlugin;
40 import org.eclipse.jdt.internal.ui.text.JavaWordFinder;
41 import org.eclipse.jdt.internal.ui.text.SimpleJavaSourceViewerConfiguration;
42 import org.eclipse.jdt.internal.ui.text.template.preferences.TemplateVariableProcessor;
43
44
45 public class TemplateEditorSourceViewerConfiguration extends SimpleJavaSourceViewerConfiguration {
46
47 private static class TemplateVariableTextHover implements ITextHover {
48
49 private TemplateVariableProcessor fProcessor;
50
51
54 public TemplateVariableTextHover(TemplateVariableProcessor processor) {
55 fProcessor= processor;
56 }
57
58
61 public String getHoverInfo(ITextViewer textViewer, IRegion subject) {
62 try {
63 IDocument doc= textViewer.getDocument();
64 int offset= subject.getOffset();
65 if (offset >= 2 && "${".equals(doc.get(offset-2, 2))) { String varName= doc.get(offset, subject.getLength());
67 TemplateContextType contextType= fProcessor.getContextType();
68 if (contextType != null) {
69 Iterator iter= contextType.resolvers();
70 while (iter.hasNext()) {
71 TemplateVariableResolver var= (TemplateVariableResolver) iter.next();
72 if (varName.equals(var.getType())) {
73 return var.getDescription();
74 }
75 }
76 }
77 }
78 } catch (BadLocationException e) {
79 }
80 return null;
81 }
82
83
86 public IRegion getHoverRegion(ITextViewer textViewer, int offset) {
87 if (textViewer != null) {
88 return JavaWordFinder.findWord(textViewer.getDocument(), offset);
89 }
90 return null;
91 }
92
93 }
94
95 private final TemplateVariableProcessor fProcessor;
96
97 public TemplateEditorSourceViewerConfiguration(IColorManager colorManager, IPreferenceStore store, ITextEditor editor, TemplateVariableProcessor processor) {
98 super(colorManager, store, editor, IJavaPartitions.JAVA_PARTITIONING, false);
99 fProcessor= processor;
100 }
101
102
105 public IContentAssistant getContentAssistant(ISourceViewer sourceViewer) {
106
107 IPreferenceStore store= JavaPlugin.getDefault().getPreferenceStore();
108 JavaTextTools textTools= JavaPlugin.getDefault().getJavaTextTools();
109 IColorManager manager= textTools.getColorManager();
110
111
112 ContentAssistant assistant= new ContentAssistant();
113 assistant.setContentAssistProcessor(fProcessor, IDocument.DEFAULT_CONTENT_TYPE);
114 assistant.setContentAssistProcessor(fProcessor, IJavaPartitions.JAVA_STRING);
116 assistant.setContentAssistProcessor(fProcessor, IJavaPartitions.JAVA_CHARACTER);
117 assistant.setContentAssistProcessor(fProcessor, IJavaPartitions.JAVA_SINGLE_LINE_COMMENT);
118 assistant.setContentAssistProcessor(fProcessor, IJavaPartitions.JAVA_MULTI_LINE_COMMENT);
119 assistant.setContentAssistProcessor(fProcessor, IJavaPartitions.JAVA_DOC);
120
121 assistant.enableAutoInsert(store.getBoolean(PreferenceConstants.CODEASSIST_AUTOINSERT));
122 assistant.enableAutoActivation(store.getBoolean(PreferenceConstants.CODEASSIST_AUTOACTIVATION));
123 assistant.setAutoActivationDelay(store.getInt(PreferenceConstants.CODEASSIST_AUTOACTIVATION_DELAY));
124 assistant.setProposalPopupOrientation(IContentAssistant.PROPOSAL_OVERLAY);
125 assistant.setContextInformationPopupOrientation(IContentAssistant.CONTEXT_INFO_ABOVE);
126 assistant.setInformationControlCreator(getInformationControlCreator(sourceViewer));
127
128 Color background= getColor(store, PreferenceConstants.CODEASSIST_PROPOSALS_BACKGROUND, manager);
129 assistant.setContextInformationPopupBackground(background);
130 assistant.setContextSelectorBackground(background);
131 assistant.setProposalSelectorBackground(background);
132
133 Color foreground= getColor(store, PreferenceConstants.CODEASSIST_PROPOSALS_FOREGROUND, manager);
134 assistant.setContextInformationPopupForeground(foreground);
135 assistant.setContextSelectorForeground(foreground);
136 assistant.setProposalSelectorForeground(foreground);
137
138 return assistant;
139 }
140
141 private Color getColor(IPreferenceStore store, String key, IColorManager manager) {
142 RGB rgb= PreferenceConverter.getColor(store, key);
143 return manager.getColor(rgb);
144 }
145
146
150 public ITextHover getTextHover(ISourceViewer sourceViewer, String contentType, int stateMask) {
151 return new TemplateVariableTextHover(fProcessor);
152 }
153
154 }
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