gerrit.simantics Code Review - simantics/sysdyn.git/blob

   1 /*******************************************************************************\r
   2  * Copyright (c) 2010 Association for Decentralized Information Management in\r
   3  * Industry THTH ry.\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.sysdyn.ui.properties.widgets.expressions;\r
  13 \r
  14 import org.eclipse.jface.internal.text.html.HTMLTextPresenter;\r
  15 import org.eclipse.jface.resource.ResourceManager;\r
  16 import org.eclipse.jface.text.DefaultInformationControl;\r
  17 import org.eclipse.jface.text.DefaultTextHover;\r
  18 import org.eclipse.jface.text.IDocument;\r
  19 import org.eclipse.jface.text.IInformationControl;\r
  20 import org.eclipse.jface.text.IInformationControlCreator;\r
  21 import org.eclipse.jface.text.ITextHover;\r
  22 import org.eclipse.jface.text.TextAttribute;\r
  23 import org.eclipse.jface.text.contentassist.ContentAssistEvent;\r
  24 import org.eclipse.jface.text.contentassist.ContentAssistant;\r
  25 import org.eclipse.jface.text.contentassist.ICompletionListener;\r
  26 import org.eclipse.jface.text.contentassist.ICompletionProposal;\r
  27 import org.eclipse.jface.text.contentassist.IContentAssistant;\r
  28 import org.eclipse.jface.text.presentation.IPresentationReconciler;\r
  29 import org.eclipse.jface.text.presentation.PresentationReconciler;\r
  30 import org.eclipse.jface.text.rules.DefaultDamagerRepairer;\r
  31 import org.eclipse.jface.text.rules.IRule;\r
  32 import org.eclipse.jface.text.rules.ITokenScanner;\r
  33 import org.eclipse.jface.text.rules.IWordDetector;\r
  34 import org.eclipse.jface.text.rules.MultiLineRule;\r
  35 import org.eclipse.jface.text.rules.RuleBasedScanner;\r
  36 import org.eclipse.jface.text.rules.Token;\r
  37 import org.eclipse.jface.text.rules.WordRule;\r
  38 import org.eclipse.jface.text.source.DefaultAnnotationHover;\r
  39 import org.eclipse.jface.text.source.IAnnotationHover;\r
  40 import org.eclipse.jface.text.source.ISourceViewer;\r
  41 import org.eclipse.jface.text.source.SourceViewerConfiguration;\r
  42 import org.eclipse.swt.SWT;\r
  43 import org.eclipse.swt.graphics.RGB;\r
  44 import org.eclipse.swt.widgets.Shell;\r
  45 import org.eclipse.swt.widgets.Table;\r
  46 import org.simantics.sysdyn.ui.modelica.ModelicaSourceViewerConfiguration;\r
  47 \r
  48 @SuppressWarnings("restriction")\r
  49 public class ExpressionFieldConfiguration extends SourceViewerConfiguration {\r
  50 \r
  51         private final long WAIT_BEFORE_STATUS_CHANGE = 100;\r
  52         \r
  53         Table allowedVariables;\r
  54         boolean allowFunctions;\r
  55         boolean assistSessionActive; \r
  56         CompletionProcessor completionProcessor;\r
  57         ResourceManager resourceManager;\r
  58 \r
  59         private final ExpressionWidgetInput input;\r
  60         \r
  61         public ExpressionFieldConfiguration(ResourceManager resourceManager, Table allowedVariables, boolean allowFunctions, ExpressionWidgetInput input) {\r
  62                 super();\r
  63                 this.resourceManager = resourceManager;\r
  64                 this.allowedVariables = allowedVariables;\r
  65                 this.allowFunctions = allowFunctions;\r
  66                 this.assistSessionActive = false;\r
  67                 this.completionProcessor = null;\r
  68                 this.input = input;\r
  69         }\r
  70         \r
  71         public boolean isAssistSessionActive() {\r
  72                 return assistSessionActive;\r
  73         }\r
  74         \r
  75         @Override\r
  76     public String[] getConfiguredContentTypes(ISourceViewer sourceViewer) {\r
  77                 return new String[] {\r
  78                                 IDocument.DEFAULT_CONTENT_TYPE\r
  79                 };\r
  80         }\r
  81 \r
  82         @Override\r
  83     public IPresentationReconciler getPresentationReconciler(ISourceViewer sourceViewer) {\r
  84                 PresentationReconciler reconciler = new PresentationReconciler();\r
  85 \r
  86                 DefaultDamagerRepairer dr = new DefaultDamagerRepairer(getTokenScanner());\r
  87 \r
  88                 reconciler.setRepairer(dr, IDocument.DEFAULT_CONTENT_TYPE);\r
  89                 reconciler.setDamager(dr, IDocument.DEFAULT_CONTENT_TYPE);\r
  90 \r
  91                 return reconciler;\r
  92         }\r
  93 \r
  94 \r
  95         ITokenScanner getTokenScanner() {\r
  96                 RuleBasedScanner scanner = new RuleBasedScanner();\r
  97 \r
  98                 final Token reserved = new Token(\r
  99                                 new TextAttribute(\r
 100                                         resourceManager.createColor(new RGB(127, 0, 85)),\r
 101                                                 null,\r
 102                                                 SWT.BOLD\r
 103                                 ));\r
 104             final Token defaultToken = new Token(new TextAttribute(resourceManager.createColor(new RGB(0, 0, 0))));\r
 105 \r
 106                  final Token comment = new Token(new TextAttribute(resourceManager.createColor(new RGB(63, 127, 95))));\r
 107 \r
 108 \r
 109                 WordRule reservedWord = new WordRule(new IWordDetector() {   \r
 110                         @Override\r
 111                         public boolean isWordStart(char c) {\r
 112                                 return Character.isLetter(c);\r
 113                         }\r
 114 \r
 115                         @Override\r
 116                         public boolean isWordPart(char c) {\r
 117                                 return Character.isLetter(c);\r
 118                         }\r
 119                 }, defaultToken);\r
 120                 \r
 121 \r
 122                 for(String s : ModelicaSourceViewerConfiguration.keywords) {\r
 123                         reservedWord.addWord(s, reserved);\r
 124                 }\r
 125 \r
 126                 IRule[] rules = new IRule[] {\r
 127                                 reservedWord,\r
 128                                 new MultiLineRule("/*", "*/", comment),\r
 129                                 new MultiLineRule("\"", "\"", comment)\r
 130                 };\r
 131                 scanner.setRules(rules);\r
 132 \r
 133                 return scanner;  \r
 134         }\r
 135 \r
 136         @Override\r
 137         public ITextHover getTextHover(ISourceViewer sourceViewer, String contentType) {\r
 138                 return new DefaultTextHover(sourceViewer);\r
 139         }\r
 140 \r
 141         @Override\r
 142         public IAnnotationHover getAnnotationHover(ISourceViewer sourceViewer) {\r
 143                 return new DefaultAnnotationHover();\r
 144         }\r
 145 \r
 146         @Override\r
 147         public IContentAssistant getContentAssistant(ISourceViewer sourceViewer) {\r
 148                 ContentAssistant assistant = new ContentAssistant();\r
 149                 completionProcessor = new CompletionProcessor(allowedVariables, allowFunctions, input);\r
 150                 assistant.setContentAssistProcessor(completionProcessor, IDocument.DEFAULT_CONTENT_TYPE);\r
 151                 assistant.enableAutoActivation(true);\r
 152                 assistant.setInformationControlCreator(getInformationControlCreator(sourceViewer));\r
 153                 assistant.enableAutoInsert(true);\r
 154                 assistant.setAutoActivationDelay(0);\r
 155                 assistant.setProposalPopupOrientation(IContentAssistant.PROPOSAL_OVERLAY);\r
 156                 assistant.setContextInformationPopupOrientation(IContentAssistant.CONTEXT_INFO_ABOVE);\r
 157                 assistant.addCompletionListener(new CompletionListener());\r
 158                 return assistant;\r
 159         }\r
 160         \r
 161     @Override\r
 162     public IInformationControlCreator getInformationControlCreator(ISourceViewer sourceViewer) {\r
 163         return new IInformationControlCreator() {\r
 164             @Override\r
 165             public IInformationControl createInformationControl(Shell parent) {\r
 166                 return new DefaultInformationControl(parent,new HTMLTextPresenter(false));\r
 167             }\r
 168         };\r
 169     }\r
 170         \r
 171         private class CompletionListener implements ICompletionListener {\r
 172 \r
 173                 @Override\r
 174                 public void assistSessionStarted(ContentAssistEvent event) {\r
 175                         if (event.processor.equals(completionProcessor)) {\r
 176                                 assistSessionActive = true;\r
 177                         }\r
 178                 }\r
 179 \r
 180                 @Override\r
 181                 public void assistSessionEnded(ContentAssistEvent event) {\r
 182                         if (event.processor.equals(completionProcessor)) {\r
 183                                 Thread waitBeforeStateChange = new Thread() {\r
 184                                         @Override\r
 185                     public void run() {\r
 186                                                 try {\r
 187                                                         sleep(WAIT_BEFORE_STATUS_CHANGE);\r
 188                                                         assistSessionActive = false;\r
 189                                                 } catch (InterruptedException e) {\r
 190                                                         assistSessionActive = false;\r
 191                                                 }\r
 192                                         }\r
 193                                 };\r
 194                                 waitBeforeStateChange.start();\r
 195                         }\r
 196                 }\r
 197 \r
 198                 @Override\r
 199                 public void selectionChanged(ICompletionProposal proposal,\r
 200                                 boolean smartToggle) {\r
 201                 }\r
 202                 \r
 203         }\r
 204         \r
 205 }\r