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.equation.expressions;\r
  13 \r
  14 import java.util.Arrays;\r
  15 import java.util.List;\r
  16 import java.util.Map;\r
  17 \r
  18 import org.eclipse.jface.layout.GridDataFactory;\r
  19 import org.eclipse.jface.layout.GridLayoutFactory;\r
  20 import org.eclipse.jface.text.BadLocationException;\r
  21 import org.eclipse.jface.text.IDocument;\r
  22 import org.eclipse.swt.SWT;\r
  23 import org.eclipse.swt.events.FocusAdapter;\r
  24 import org.eclipse.swt.events.FocusEvent;\r
  25 import org.eclipse.swt.events.SelectionAdapter;\r
  26 import org.eclipse.swt.events.SelectionEvent;\r
  27 import org.eclipse.swt.graphics.Point;\r
  28 import org.eclipse.swt.widgets.Button;\r
  29 import org.eclipse.swt.widgets.Composite;\r
  30 import org.eclipse.swt.widgets.Label;\r
  31 import org.simantics.db.Builtins;\r
  32 import org.simantics.db.ReadGraph;\r
  33 import org.simantics.db.Resource;\r
  34 import org.simantics.db.WriteGraph;\r
  35 import org.simantics.db.common.request.WriteRequest;\r
  36 import org.simantics.db.exception.DatabaseException;\r
  37 import org.simantics.db.request.Read;\r
  38 import org.simantics.sysdyn.SysdynResource;\r
  39 import org.simantics.ui.SimanticsUI;\r
  40 \r
  41 public class WithLookupExpressionViewFactor implements IExpressionViewFactor {\r
  42 \r
  43 \r
  44     private Label expressionLabel;\r
  45     private ExpressionField expression;\r
  46     private Label lookupLabel;\r
  47     private ExpressionField lookup;\r
  48     private Button asGraph;\r
  49     private ExpressionField lastSelectedText = expression;\r
  50     private Resource variable;\r
  51 \r
  52     @Override\r
  53     public void createView(Composite parent, Map<String, Object> data) {\r
  54 \r
  55         final String equation = data.get("equation") != null ? (String)data.get("equation") : "";\r
  56         final String lookupTable = data.get("lookup") != null ? (String)data.get("lookup") : "";\r
  57 \r
  58         GridLayoutFactory.fillDefaults().numColumns(2).spacing(3, 3).applyTo(parent);\r
  59 \r
  60         expressionLabel = new Label(parent, SWT.NONE);\r
  61         expressionLabel.setFont(FONT);\r
  62         expressionLabel.setText("With\nLookup");\r
  63         GridDataFactory.fillDefaults().applyTo(expressionLabel);\r
  64 \r
  65         expression = new ExpressionField(parent, SWT.BORDER);\r
  66         expression.setFont(FONT);\r
  67         expression.setExpression(equation);\r
  68         GridDataFactory.fillDefaults().grab(true, true).applyTo(expression);\r
  69 \r
  70         expression.getSourceViewer().getTextWidget().addFocusListener(new FocusAdapter() {\r
  71 \r
  72             @Override\r
  73             public void focusLost(FocusEvent e) {\r
  74                 lastSelectedText = expression;\r
  75             }\r
  76         });\r
  77 \r
  78         lookupLabel = new Label(parent, SWT.NONE);\r
  79         lookupLabel.setFont(FONT);\r
  80         lookupLabel.setText("Lookup\ntable");\r
  81         GridDataFactory.fillDefaults().applyTo(lookupLabel);\r
  82 \r
  83         lookup = new ExpressionField(parent, SWT.BORDER);\r
  84         lookup.setFont(FONT);\r
  85         lookup.setExpression(lookupTable);\r
  86         GridDataFactory.fillDefaults().grab(true, true).applyTo(lookup);\r
  87 \r
  88         lookup.getSourceViewer().getTextWidget().addFocusListener(new FocusAdapter() {\r
  89 \r
  90             @Override\r
  91             public void focusLost(FocusEvent e) {\r
  92                 lastSelectedText = lookup;\r
  93             }\r
  94         });\r
  95 \r
  96         asGraph = new Button(parent, SWT.None);\r
  97         asGraph.setText("As graph");\r
  98         asGraph.setFont(FONT);\r
  99         asGraph.addSelectionListener(new SelectionAdapter() {\r
 100             public void widgetSelected(SelectionEvent e) {\r
 101                 if(e.widget == asGraph) {\r
 102                     LookupPopup pud = new LookupPopup(asGraph.getParent().getShell(), variable, lookup.getExpression());\r
 103                     lookup.setExpression(pud.open(false));\r
 104                 }\r
 105             }\r
 106         });\r
 107     }\r
 108 \r
 109     @Override\r
 110     public void readData(final Resource variable, Map<String, Object> data) {\r
 111         String[] results = null;\r
 112         if (variable != null && data.get("equation") == null) {\r
 113             try {\r
 114                 results = SimanticsUI.getSession().syncRequest(new Read<String[]>() {\r
 115 \r
 116                     @Override\r
 117                     public String[] perform(ReadGraph graph) throws DatabaseException {\r
 118                         String[] results = new String[2];\r
 119                         SysdynResource sr = SysdynResource.getInstance(graph);\r
 120                         Resource expression = graph.getPossibleObject(variable, sr.HasExpression);\r
 121                         if (expression != null && graph.isInstanceOf(expression, sr.WithLookupExpression)) {\r
 122                             results[0] = graph.getRelatedValue(expression, sr.HasEquation);\r
 123                             results[1] = graph.getRelatedValue(expression, sr.HasLookup);\r
 124                         } else {\r
 125                             results[0] = "";\r
 126                             results[1] = "";\r
 127                         }\r
 128                         return results;\r
 129                     }\r
 130 \r
 131                 });\r
 132             } catch (DatabaseException e1) {\r
 133                 e1.printStackTrace();\r
 134             }\r
 135             data.put("equation", results[0]);\r
 136             data.put("lookup", results[1]);\r
 137             this.variable = variable;\r
 138         }\r
 139     }\r
 140 \r
 141     @Override\r
 142     public void writeData(final Resource variable, Map<String, Object> data) {\r
 143         final String currentExpression = expression.getExpression();\r
 144         final String currentLookupTable = lookup.getExpression();\r
 145 \r
 146         if(currentExpression != null && currentLookupTable != null) {\r
 147             data.put("equation", currentExpression);\r
 148             data.put("lookup", currentLookupTable);\r
 149             SimanticsUI.getSession().asyncRequest(new WriteRequest() {\r
 150                 @Override\r
 151                 public void perform(WriteGraph g)\r
 152                 throws DatabaseException {\r
 153                     SysdynResource sr = SysdynResource.getInstance(g);\r
 154                     Resource expression = g.getPossibleObject(variable, sr.HasExpression);\r
 155                     Builtins b = g.getBuiltins();\r
 156                     if(expression != null) {\r
 157                         g.deny(variable, sr.HasExpression);\r
 158                     }\r
 159                     expression = g.newResource();\r
 160                     g.claim(expression, b.InstanceOf, null, sr.WithLookupExpression);\r
 161                     g.claim(variable, sr.HasExpression, expression);\r
 162                     g.claimValue(expression, sr.HasEquation, currentExpression);\r
 163                     g.claimValue(expression, sr.HasLookup, currentLookupTable);\r
 164                 }\r
 165 \r
 166             });\r
 167         }\r
 168     }\r
 169 \r
 170     @Override\r
 171     public void focus() {\r
 172         if(this.lastSelectedText != null) this.lastSelectedText.focus();\r
 173     }\r
 174 \r
 175     @Override\r
 176     public void replaceSelection(String var) {\r
 177         if(lastSelectedText != null) {\r
 178             IDocument doc = lastSelectedText.getDocument();\r
 179             try {\r
 180                 Point selection = lastSelectedText.getSelection();\r
 181                 doc.replace(selection.x, selection.y, var);\r
 182                 lastSelectedText.setSelection(selection.x + var.length());\r
 183             } catch (BadLocationException e) {\r
 184                 e.printStackTrace();\r
 185             }\r
 186         }\r
 187     }\r
 188 \r
 189     @Override\r
 190     public void updateData(Map<String, Object> data) {\r
 191         if(this.expression != null && this.expression.getExpression() != null)\r
 192             data.put("equation", this.expression.getExpression());\r
 193         if(this.lookup != null && this.lookup.getExpression() != null)\r
 194             data.put("lookup", this.lookup.getExpression());\r
 195     }\r
 196 \r
 197     @Override\r
 198     public List<ExpressionField> getExpressionFields() {\r
 199         return Arrays.asList(this.expression, this.lookup);\r
 200     }\r
 201 }