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

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
   3  * in 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 java.util.List;\r
  15 \r
  16 import org.eclipse.jface.layout.GridDataFactory;\r
  17 import org.eclipse.jface.layout.GridLayoutFactory;\r
  18 import org.eclipse.jface.text.BadLocationException;\r
  19 import org.eclipse.jface.text.Document;\r
  20 import org.eclipse.jface.text.IDocument;\r
  21 import org.eclipse.jface.text.PaintManager;\r
  22 import org.eclipse.jface.text.Position;\r
  23 import org.eclipse.jface.text.source.Annotation;\r
  24 import org.eclipse.jface.text.source.AnnotationModel;\r
  25 import org.eclipse.jface.text.source.AnnotationPainter;\r
  26 import org.eclipse.jface.text.source.DefaultCharacterPairMatcher;\r
  27 import org.eclipse.jface.text.source.IAnnotationAccess;\r
  28 import org.eclipse.jface.text.source.MatchingCharacterPainter;\r
  29 import org.eclipse.jface.text.source.SourceViewer;\r
  30 import org.eclipse.swt.SWT;\r
  31 import org.eclipse.swt.custom.StyledText;\r
  32 import org.eclipse.swt.events.KeyEvent;\r
  33 import org.eclipse.swt.events.KeyListener;\r
  34 import org.eclipse.swt.graphics.Color;\r
  35 import org.eclipse.swt.graphics.RGB;\r
  36 import org.eclipse.swt.widgets.Composite;\r
  37 import org.eclipse.swt.widgets.Display;\r
  38 import org.eclipse.ui.texteditor.DefaultMarkerAnnotationAccess;\r
  39 import org.eclipse.swt.graphics.Point;\r
  40 import org.simantics.sysdyn.expressionParser.Token;\r
  41 \r
  42 public class ExpressionField extends Composite {\r
  43 \r
  44     protected SourceViewer                  _sourceViewer;\r
  45     protected IDocument                     _document;\r
  46     protected AnnotationModel               _annotationModel;\r
  47     \r
  48     String oldExpression;\r
  49 \r
  50     ColorManager cManager = new ColorManager();\r
  51 \r
  52     IAnnotationAccess annotationAccess = new DefaultMarkerAnnotationAccess();\r
  53 \r
  54     public ExpressionField(Composite parent, int style) {\r
  55         super(parent, style);\r
  56         \r
  57         GridLayoutFactory.fillDefaults().applyTo(this);\r
  58         \r
  59         int styles = SWT.V_SCROLL\r
  60         | SWT.MULTI\r
  61         | SWT.FULL_SELECTION\r
  62         | SWT.WRAP;\r
  63 \r
  64         _document = new Document();\r
  65         _document.set("");\r
  66 \r
  67         _annotationModel = new AnnotationModel();\r
  68         _annotationModel.connect(_document);\r
  69 \r
  70         _sourceViewer = new SourceViewer(this,\r
  71 \r
  72                 null,\r
  73                 null,\r
  74                 true,\r
  75                 styles);\r
  76         _sourceViewer.configure(new ExpressionFieldConfiguration(cManager));\r
  77 \r
  78         AnnotationPainter painter = new AnnotationPainter(_sourceViewer, annotationAccess);\r
  79         _sourceViewer.addPainter(painter);\r
  80 \r
  81         painter.addAnnotationType("MissingLink");\r
  82         painter.setAnnotationTypeColor("MissingLink", new Color(this.getDisplay(), 255,0,0));\r
  83         painter.addAnnotationType("NoSuchVariable");\r
  84         painter.setAnnotationTypeColor("NoSuchVariable", new Color(this.getDisplay(), 255,0,0));\r
  85         \r
  86         _sourceViewer.setDocument(_document, _annotationModel);\r
  87 \r
  88         GridDataFactory.fillDefaults().grab(true, true).applyTo(_sourceViewer.getControl());\r
  89 //        _sourceViewer.getControl().setLayoutData(new GridData(SWT.FILL,\r
  90 //                SWT.FILL,\r
  91 //                true,\r
  92 //                true)); \r
  93 \r
  94         PaintManager paintManager = new PaintManager(_sourceViewer);\r
  95         MatchingCharacterPainter matchingCharacterPainter = new MatchingCharacterPainter(_sourceViewer,\r
  96                 new DefaultCharacterPairMatcher( new char[] {'(', ')', '{', '}', '[', ']'} ));\r
  97         matchingCharacterPainter.setColor(new Color(Display.getCurrent(), new RGB(160, 160, 160)));\r
  98         paintManager.addPainter(matchingCharacterPainter);\r
  99         \r
 100         \r
 101         _sourceViewer.getTextWidget().addKeyListener(new KeyListener() {\r
 102 \r
 103             @Override\r
 104             public void keyReleased(KeyEvent e) {\r
 105             }\r
 106 \r
 107             @Override\r
 108             public void keyPressed(KeyEvent e) {\r
 109                 if(e.keyCode == SWT.ESC && getExpression() != null) {\r
 110                     ((StyledText)e.widget).setText(oldExpression);\r
 111                     ((StyledText)e.widget).setSelection(getExpression().length());\r
 112                 }   \r
 113             }\r
 114         });\r
 115        \r
 116     }\r
 117 \r
 118     public SourceViewer getSourceViewer() {\r
 119         return this._sourceViewer;\r
 120     }\r
 121 \r
 122     public void setMissingLinkAnnotations(List<Position> positions){\r
 123         for(Position p : positions) {\r
 124             Annotation annotation = new Annotation(false);\r
 125             annotation.setType("MissingLink");\r
 126             annotation.setText("No link to this variable");\r
 127             _annotationModel.addAnnotation(annotation, p);        \r
 128         }\r
 129     }\r
 130     \r
 131     public void setNoSuchVariableAnnotations(List<Position> positions){\r
 132         for(Position p : positions) {\r
 133             Annotation annotation = new Annotation(false);\r
 134             annotation.setType("NoSuchVariable");\r
 135             annotation.setText("No such variable in model");\r
 136             _annotationModel.addAnnotation(annotation, p);        \r
 137         }\r
 138     }\r
 139 \r
 140     public void setSyntaxError(Token token){\r
 141         int start = 0;\r
 142         int offset = this._document.getLength();\r
 143         if(token.image != null && this._document.getLength() > 0) {\r
 144             try {\r
 145                 start = this._document.getLineOffset(token.beginLine - 1) + token.beginColumn - 1;\r
 146                 offset = this._document.getLineOffset(token.endLine - 1) + token.endColumn - start;\r
 147             } catch (BadLocationException e) {\r
 148                 e.printStackTrace();\r
 149             }\r
 150         }\r
 151         setSyntaxError(start, offset, "MissingLink", "Syntax error");\r
 152     }\r
 153     \r
 154     public void setSyntaxError(int start, int offset, String type, String text) {\r
 155         Annotation annotation = new Annotation(false);\r
 156         annotation.setType(type);\r
 157         annotation.setText(text);\r
 158         Position p = new Position(start, offset);\r
 159         _annotationModel.addAnnotation(annotation, p);      \r
 160     }\r
 161 \r
 162     public void resetAnnotations() {\r
 163         _annotationModel.removeAllAnnotations();\r
 164     }\r
 165     public void setExpression(String expression) {\r
 166         _document.set(expression);\r
 167         this.oldExpression = expression;\r
 168     }\r
 169 \r
 170     public String getExpression() {\r
 171         return this._document.get();\r
 172     }\r
 173 \r
 174     public Point getSelection() {\r
 175         return _sourceViewer.getSelectedRange();\r
 176     }\r
 177 \r
 178     public void setSelection(int selection) {\r
 179         this._sourceViewer.setSelectedRange(selection, 0);\r
 180     }\r
 181 \r
 182     public IDocument getDocument() {\r
 183         return _document;\r
 184     }\r
 185 \r
 186     public void focus() {\r
 187         this._sourceViewer.getTextWidget().forceFocus();\r
 188     }\r
 189 \r
 190 }\r