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.ReadGraph;\r
  32 import org.simantics.db.Resource;\r
  33 import org.simantics.db.WriteGraph;\r
  34 import org.simantics.db.common.request.WriteRequest;\r
  35 import org.simantics.db.exception.DatabaseException;\r
  36 import org.simantics.db.request.Read;\r
  37 import org.simantics.layer0.Layer0;\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     private LookupChartInfo chartInfo;\r
  52 \r
  53     public WithLookupExpressionViewFactor(Resource variable) {\r
  54         super();\r
  55         this.variable = variable;\r
  56     }\r
  57     \r
  58     @Override\r
  59     public void createView(Composite parent, final Map<String, Object> data) {\r
  60         String equation = data.get("equation") != null ? (String)data.get("equation") : "";\r
  61         String lookupTable = data.get("lookup") != null ? (String)data.get("lookup") : "";\r
  62 \r
  63         GridLayoutFactory.fillDefaults().numColumns(2).spacing(3, 3).applyTo(parent);\r
  64 \r
  65         expressionLabel = new Label(parent, SWT.NONE);\r
  66         expressionLabel.setFont(FONT);\r
  67         expressionLabel.setText("With\nLookup");\r
  68         GridDataFactory.fillDefaults().applyTo(expressionLabel);\r
  69 \r
  70         expression = new ExpressionField(parent, SWT.BORDER);\r
  71         expression.setFont(FONT);\r
  72         expression.setExpression(equation);\r
  73         GridDataFactory.fillDefaults().grab(true, true).applyTo(expression);\r
  74 \r
  75         expression.getSourceViewer().getTextWidget().addFocusListener(new FocusAdapter() {\r
  76 \r
  77             @Override\r
  78             public void focusLost(FocusEvent e) {\r
  79                 lastSelectedText = expression;\r
  80             }\r
  81         });\r
  82 \r
  83         lookupLabel = new Label(parent, SWT.NONE);\r
  84         lookupLabel.setFont(FONT);\r
  85         lookupLabel.setText("Lookup\ntable");\r
  86         GridDataFactory.fillDefaults().applyTo(lookupLabel);\r
  87 \r
  88         lookup = new ExpressionField(parent, SWT.BORDER);\r
  89         lookup.setFont(FONT);\r
  90         lookup.setExpression(lookupTable);\r
  91         GridDataFactory.fillDefaults().grab(true, true).applyTo(lookup);\r
  92 \r
  93         lookup.getSourceViewer().getTextWidget().addFocusListener(new FocusAdapter() {\r
  94 \r
  95             @Override\r
  96             public void focusLost(FocusEvent e) {\r
  97                 lastSelectedText = lookup;\r
  98             }\r
  99         });\r
 100 \r
 101         asGraph = new Button(parent, SWT.None);\r
 102         asGraph.setText("As graph");\r
 103         asGraph.setFont(FONT);\r
 104         asGraph.addSelectionListener(new SelectionAdapter() {\r
 105             public void widgetSelected(SelectionEvent e) {\r
 106                 if(e.widget == asGraph) {\r
 107                     if(chartInfo == null) chartInfo = new LookupChartInfo(expression.getExpression(), lookup.getExpression(), variable, data);\r
 108                     LookupPopup pud = new LookupPopup(asGraph.getParent().getShell(), chartInfo);\r
 109                     LookupChartInfo newInfo = pud.open(false);\r
 110                     if(pud.getReturnCode() == org.eclipse.jface.window.Window.OK) {\r
 111                         chartInfo = newInfo;\r
 112                         lookup.setExpression(chartInfo.lookupTable);\r
 113                     }\r
 114                 }\r
 115             }\r
 116         });\r
 117 \r
 118     }\r
 119 \r
 120     @Override\r
 121     public void readData(final Resource variable, Map<String, Object> data) {\r
 122         String[] results = null;\r
 123         if (variable != null && data.get("equation") == null) {\r
 124             try {\r
 125                 results = SimanticsUI.getSession().syncRequest(new Read<String[]>() {\r
 126 \r
 127                     @Override\r
 128                     public String[] perform(ReadGraph graph) throws DatabaseException {\r
 129                         String[] results = new String[2];\r
 130                         SysdynResource sr = SysdynResource.getInstance(graph);\r
 131                         Resource expression = graph.getPossibleObject(variable, sr.HasExpression);\r
 132                         if (expression != null && graph.isInstanceOf(expression, sr.WithLookupExpression)) {\r
 133                             results[0] = graph.getRelatedValue(expression, sr.HasEquation);\r
 134                             results[1] = graph.getRelatedValue(expression, sr.HasLookup);\r
 135                         } else {\r
 136                             results[0] = "";\r
 137                             results[1] = "";\r
 138                         }\r
 139                         return results;\r
 140                     }\r
 141 \r
 142                 });\r
 143             } catch (DatabaseException e1) {\r
 144                 e1.printStackTrace();\r
 145             }\r
 146             data.put("equation", results[0]);\r
 147             data.put("lookup", results[1]);\r
 148         }\r
 149     }\r
 150 \r
 151     @Override\r
 152     public void writeData(final Resource variable, Map<String, Object> data) {\r
 153         final String currentExpression = expression.getExpression();\r
 154         final String currentLookupTable = lookup.getExpression();\r
 155 \r
 156         if(currentExpression != null && currentLookupTable != null) {\r
 157             data.putAll(data);\r
 158             data.put("equation", currentExpression);\r
 159             data.put("lookup", currentLookupTable);\r
 160             SimanticsUI.getSession().asyncRequest(new WriteRequest() {\r
 161                 @Override\r
 162                 public void perform(WriteGraph g)\r
 163                 throws DatabaseException {\r
 164                     SysdynResource sr = SysdynResource.getInstance(g);\r
 165                     Resource expression = g.getPossibleObject(variable, sr.HasExpression);\r
 166                     Layer0 l0 = Layer0.getInstance(g);\r
 167                     if(expression != null) {\r
 168                         g.deny(variable, sr.HasExpression);\r
 169                     }\r
 170                     expression = g.newResource();\r
 171                     g.claim(expression, l0.InstanceOf, null, sr.WithLookupExpression);\r
 172                     g.claim(variable, sr.HasExpression, expression);\r
 173                     g.claimLiteral(expression, sr.HasEquation, currentExpression);\r
 174                     g.claimLiteral(expression, sr.HasLookup, currentLookupTable);\r
 175                     g.claimLiteral(expression, sr.HasMinX, chartInfo.minX);\r
 176                     g.claimLiteral(expression, sr.HasMaxX, chartInfo.maxX);\r
 177                     g.claimLiteral(expression, sr.HasMinY, chartInfo.minY);\r
 178                     g.claimLiteral(expression, sr.HasMaxY, chartInfo.maxY);\r
 179                 }\r
 180             });\r
 181         }\r
 182     }\r
 183 \r
 184     @Override\r
 185     public void focus() {\r
 186         if(this.lastSelectedText != null) this.lastSelectedText.focus();\r
 187     }\r
 188 \r
 189     @Override\r
 190     public void replaceSelection(String var) {\r
 191         if(lastSelectedText != null) {\r
 192             IDocument doc = lastSelectedText.getDocument();\r
 193             try {\r
 194                 Point selection = lastSelectedText.getSelection();\r
 195                 doc.replace(selection.x, selection.y, var);\r
 196                 lastSelectedText.setSelection(selection.x + var.length());\r
 197             } catch (BadLocationException e) {\r
 198                 e.printStackTrace();\r
 199             }\r
 200         }\r
 201     }\r
 202 \r
 203     @Override\r
 204     public void updateData(Map<String, Object> data) {\r
 205         if(this.expression != null && this.expression.getExpression() != null)\r
 206             data.put("equation", this.expression.getExpression());\r
 207         if(this.lookup != null && this.lookup.getExpression() != null)\r
 208             data.put("lookup", this.lookup.getExpression());\r
 209         if(this.chartInfo != null) {\r
 210             data.put("minX", chartInfo.minX);\r
 211             data.put("maxX", chartInfo.maxX);\r
 212             data.put("minY", chartInfo.minY);\r
 213             data.put("maxY", chartInfo.maxY);\r
 214         }\r
 215     }\r
 216 \r
 217     @Override\r
 218     public List<ExpressionField> getExpressionFields() {\r
 219         return Arrays.asList(this.expression, this.lookup);\r
 220     }\r
 221 }