bundles/org.simantics.spreadsheet.ui/src/org/simantics/spreadsheet/ui/TextTableCellEditor.java

   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.spreadsheet.ui;\r
  13 \r
  14 import java.awt.Component;\r
  15 import java.awt.Toolkit;\r
  16 import java.awt.event.KeyEvent;\r
  17 import java.awt.geom.AffineTransform;\r
  18 import java.util.EventObject;\r
  19 \r
  20 import javax.swing.DefaultCellEditor;\r
  21 import javax.swing.JOptionPane;\r
  22 import javax.swing.JTable;\r
  23 import javax.swing.JTextField;\r
  24 import javax.swing.SwingUtilities;\r
  25 \r
  26 import org.simantics.databoard.Bindings;\r
  27 import org.simantics.databoard.binding.mutable.Variant;\r
  28 import org.simantics.spreadsheet.CellEditor;\r
  29 import org.simantics.spreadsheet.ClientModel;\r
  30 import org.simantics.spreadsheet.util.SpreadsheetUtils;\r
  31 \r
  32 class TextTableCellEditor extends DefaultCellEditor implements SpreadsheetCellEditor {\r
  33 \r
  34     final int row;\r
  35     final int column;\r
  36     final CellEditor<?> editor;\r
  37     final String initial;\r
  38     \r
  39     private static final long serialVersionUID = 8039248821751464832L;\r
  40 \r
  41     JTextField ftf;\r
  42     ClientModel clientModel;\r
  43         \r
  44     public TextTableCellEditor(final int row, final int column,final String initial, final CellEditor<?> editor, ClientModel clientModel) {\r
  45         \r
  46         super(new JTextField());\r
  47         \r
  48         assert(editor != null);\r
  49 \r
  50         this.row = row;\r
  51         this.column = column;\r
  52         this.initial = initial == null ? "" : initial;\r
  53         this.editor = editor;\r
  54         this.clientModel = clientModel;\r
  55         \r
  56         ftf = (JTextField)getComponent();\r
  57 \r
  58         ftf.setHorizontalAlignment(JTextField.TRAILING);\r
  59         \r
  60     }\r
  61 \r
  62     @Override\r
  63     public boolean isCellEditable(EventObject event) {\r
  64         if (super.isCellEditable(event)) {\r
  65             if (event instanceof KeyEvent) {\r
  66                 KeyEvent ke = (KeyEvent) event;\r
  67                 int kc = ke.getKeyCode();\r
  68                 switch (kc) {\r
  69                 case KeyEvent.VK_ESCAPE:\r
  70                     return false;\r
  71                 case KeyEvent.VK_F2:\r
  72                     return true;\r
  73                 }\r
  74                 if (ke.isActionKey())\r
  75                     return false;\r
  76             }\r
  77             return true;\r
  78         }\r
  79         return false;\r
  80     }\r
  81 \r
  82     //Override to invoke setValue on the formatted text field.\r
  83     public Component getTableCellEditorComponent(JTable table,\r
  84             Object value, boolean isSelected,\r
  85             int row, int column) {\r
  86         JTextField ftf =\r
  87             (JTextField)super.getTableCellEditorComponent(\r
  88                 table, value, isSelected, row, column);\r
  89         ftf.setText(initial);\r
  90         ftf.selectAll();\r
  91         ftf.setFont(ftf.getFont().deriveFont(AffineTransform.getScaleInstance(0.8, 0.8)));\r
  92         return ftf;\r
  93     }\r
  94 \r
  95     //Override to ensure that the value remains an Integer.\r
  96     public Object getCellEditorValue() {\r
  97         JTextField ftf = (JTextField)getComponent();\r
  98         return ftf.getText();\r
  99     }\r
 100 \r
 101     /** \r
 102      * Lets the user know that the text they entered is \r
 103      * bad. Returns true if the user elects to revert to\r
 104      * the last good value.  Otherwise, returns false, \r
 105      * indicating that the user wants to continue editing.\r
 106      */\r
 107     protected boolean userSaysRevert() {\r
 108         Toolkit.getDefaultToolkit().beep();\r
 109         ftf.selectAll();\r
 110         Object[] options = {"Edit",\r
 111                             "Revert"};\r
 112         int answer = JOptionPane.showOptionDialog(\r
 113             SwingUtilities.getWindowAncestor(ftf),\r
 114             "The value must be an integer between "\r
 115 //            + minimum + " and "\r
 116 //            + maximum + ".\n"\r
 117             + "You can either continue editing "\r
 118             + "or revert to the last valid value.",\r
 119             "Invalid Text Entered",\r
 120             JOptionPane.YES_NO_OPTION,\r
 121             JOptionPane.ERROR_MESSAGE,\r
 122             null,\r
 123             options,\r
 124             options[1]);\r
 125             \r
 126         if (answer == 1) { //Revert!\r
 127             ftf.setText(ftf.getText());\r
 128             return true;\r
 129         }\r
 130         return false;\r
 131     }\r
 132 \r
 133     @Override\r
 134     public void commit() {\r
 135         \r
 136         String str = (String)getCellEditorValue();\r
 137 \r
 138         String cellName = SpreadsheetUtils.cellName(row, column);\r
 139         String expression = clientModel.getPossiblePropertyAt(cellName, ClientModel.CONTENT_EXPRESSION);\r
 140                 if(expression == null) {\r
 141                         Variant content = SpreadsheetUtils.getSafeClientVariant(clientModel, cellName, ClientModel.CONTENT);\r
 142                         if(content != null)\r
 143                                 expression = content.getValue().toString();\r
 144                         else\r
 145                                 expression = "";\r
 146                 } else {\r
 147                         expression = "=" + expression;\r
 148                 }        \r
 149         if (expression.equals(str))\r
 150                 return;\r
 151         \r
 152         if (str.startsWith("=")) {\r
 153                         editor.edit(null, SpreadsheetUtils.cellName(row, column), ClientModel.CONTENT_EXPRESSION, str, Bindings.STRING, null);\r
 154                 } else {\r
 155                         editor.edit(null, SpreadsheetUtils.cellName(row, column), Variant.ofInstance(str), null);\r
 156                 }\r
 157         \r
 158     }\r
 159     \r
 160 }\r