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

   1 package org.simantics.scl.ui.editor;
   2
   3 import org.eclipse.jface.text.DefaultTextHover;
   4 import org.eclipse.jface.text.IDocument;
   5 import org.eclipse.jface.text.ITextHover;
   6 import org.eclipse.jface.text.TextAttribute;
   7 import org.eclipse.jface.text.presentation.IPresentationReconciler;
   8 import org.eclipse.jface.text.presentation.PresentationReconciler;
   9 import org.eclipse.jface.text.rules.DefaultDamagerRepairer;
  10 import org.eclipse.jface.text.rules.IRule;
  11 import org.eclipse.jface.text.rules.ITokenScanner;
  12 import org.eclipse.jface.text.rules.IWordDetector;
  13 import org.eclipse.jface.text.rules.MultiLineRule;
  14 import org.eclipse.jface.text.rules.PatternRule;
  15 import org.eclipse.jface.text.rules.RuleBasedScanner;
  16 import org.eclipse.jface.text.rules.Token;
  17 import org.eclipse.jface.text.rules.WordRule;
  18 import org.eclipse.jface.text.source.DefaultAnnotationHover;
  19 import org.eclipse.jface.text.source.IAnnotationHover;
  20 import org.eclipse.jface.text.source.ISharedTextColors;
  21 import org.eclipse.jface.text.source.ISourceViewer;
  22 import org.eclipse.jface.text.source.SourceViewerConfiguration;
  23 import org.eclipse.swt.SWT;
  24 import org.eclipse.swt.graphics.Device;
  25 import org.eclipse.swt.graphics.Font;
  26 import org.eclipse.swt.graphics.RGB;
  27
  28 public class SCLSourceViewerConfiguration extends SourceViewerConfiguration {
  29
  30     public static final char[] CONTENT_ASSIST_AUTO_CHARS = new char[] { '.' };
  31     Device device;
  32
  33     ISharedTextColors sharedTextColors;
  34
  35     public SCLSourceViewerConfiguration(Device device,
  36             ISharedTextColors sharedTextColors) {
  37         this.device = device;
  38         this.sharedTextColors = sharedTextColors;
  39     }
  40
  41     public String[] getConfiguredContentTypes(ISourceViewer sourceViewer) {
  42         return new String[] {
  43             IDocument.DEFAULT_CONTENT_TYPE
  44         };
  45     }
  46
  47     public IPresentationReconciler getPresentationReconciler(ISourceViewer sourceViewer) {
  48         PresentationReconciler reconciler = new PresentationReconciler();
  49
  50         DefaultDamagerRepairer dr = new DefaultDamagerRepairer(getSclTokenScanner());
  51
  52         reconciler.setRepairer(dr, IDocument.DEFAULT_CONTENT_TYPE);
  53         reconciler.setDamager(dr, IDocument.DEFAULT_CONTENT_TYPE);
  54
  55         return reconciler;
  56     }
  57
  58     ITokenScanner getSclTokenScanner() {
  59         RuleBasedScanner scanner = new RuleBasedScanner();
  60
  61         Font font = new Font(device, "Courier New", 10, SWT.NORMAL);
  62         Font boldFont = new Font(device, "Courier New", 10, SWT.BOLD);
  63
  64         Token defaultToken = new Token(
  65                 new TextAttribute(
  66                         sharedTextColors.getColor(new RGB(0, 0, 0)),
  67                         null,
  68                         0,
  69                         font
  70                 ));
  71         Token string = new Token(new TextAttribute(
  72                 sharedTextColors.getColor(new RGB(42, 0, 255)),
  73                 null,
  74                 0,
  75                 font
  76                 ));
  77         Token reserved = new Token(
  78                 new TextAttribute(
  79                         sharedTextColors.getColor(new RGB(127, 0, 85)),
  80                         null,
  81                         SWT.BOLD,
  82                         boldFont
  83                 ));
  84         Token comment = new Token(new TextAttribute(
  85                 sharedTextColors.getColor(new RGB(63, 127, 95)),
  86                 null,
  87                 0,
  88                 font
  89                 ));
  90
  91         WordRule reservedWord = new WordRule(new IWordDetector() {
  92             @Override
  93             public boolean isWordStart(char c) {
  94                 return Character.isJavaIdentifierStart(c);
  95             }
  96
  97             @Override
  98             public boolean isWordPart(char c) {
  99                 return Character.isJavaIdentifierPart(c) || c=='.';
 100             }
 101         });
 102
 103         reservedWord.addWord("if", reserved);
 104         reservedWord.addWord("then", reserved);
 105         reservedWord.addWord("else", reserved);
 106         reservedWord.addWord("match", reserved);
 107         reservedWord.addWord("with", reserved);
 108         reservedWord.addWord("data", reserved);
 109         reservedWord.addWord("type", reserved);
 110         reservedWord.addWord("class", reserved);
 111
 112         IRule[] rules = new IRule[] {
 113             //new MultiLineRule("\"\"\"", "\"\"\"", string),
 114             new PatternRule("\"", "\"", string, '\\', true),
 115             new MultiLineRule("/*", "*/", comment),
 116             new PatternRule("//", null, comment, '\0', true),
 117             reservedWord
 118         };
 119         scanner.setRules(rules);
 120         scanner.setDefaultReturnToken(defaultToken);
 121
 122         return scanner;
 123     }
 124
 125     @Override
 126     public ITextHover getTextHover(ISourceViewer sourceViewer, String contentType) {
 127         return new DefaultTextHover(sourceViewer);
 128     }
 129
 130     @Override
 131     public IAnnotationHover getAnnotationHover(ISourceViewer sourceViewer) {
 132         return new DefaultAnnotationHover();
 133     }
 134 }