bundles/org.simantics.spreadsheet.ui/src/org/simantics/spreadsheet/ui/test/RowHeaderExample.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.test;\r
  13 import java.awt.BorderLayout;\r
  14 import java.awt.Component;\r
  15 import java.awt.Toolkit;\r
  16 import java.awt.datatransfer.Clipboard;\r
  17 import java.awt.datatransfer.DataFlavor;\r
  18 import java.awt.datatransfer.StringSelection;\r
  19 import java.awt.event.ActionEvent;\r
  20 import java.awt.event.ActionListener;\r
  21 import java.awt.event.KeyEvent;\r
  22 import java.awt.event.WindowAdapter;\r
  23 import java.awt.event.WindowEvent;\r
  24 import java.util.StringTokenizer;\r
  25 \r
  26 import javax.swing.AbstractListModel;\r
  27 import javax.swing.JComponent;\r
  28 import javax.swing.JFrame;\r
  29 import javax.swing.JLabel;\r
  30 import javax.swing.JList;\r
  31 import javax.swing.JOptionPane;\r
  32 import javax.swing.JScrollPane;\r
  33 import javax.swing.JTable;\r
  34 import javax.swing.KeyStroke;\r
  35 import javax.swing.ListCellRenderer;\r
  36 import javax.swing.ListModel;\r
  37 import javax.swing.UIManager;\r
  38 import javax.swing.event.TableModelEvent;\r
  39 import javax.swing.event.TableModelListener;\r
  40 import javax.swing.table.DefaultTableModel;\r
  41 import javax.swing.table.JTableHeader;\r
  42 \r
  43 /**\r
  44  * @version 1.0 11/09/98\r
  45  */\r
  46 \r
  47 class RowHeaderRenderer extends JLabel implements ListCellRenderer {\r
  48 \r
  49         RowHeaderRenderer(JTable table) {\r
  50                 JTableHeader header = table.getTableHeader();\r
  51                 setOpaque(true);\r
  52                 setBorder(UIManager.getBorder("TableHeader.cellBorder"));\r
  53                 setHorizontalAlignment(CENTER);\r
  54                 setForeground(header.getForeground());\r
  55                 setBackground(header.getBackground());\r
  56                 setFont(header.getFont());\r
  57         }\r
  58 \r
  59         public Component getListCellRendererComponent(JList list, Object value,\r
  60                         int index, boolean isSelected, boolean cellHasFocus) {\r
  61                 setText((value == null) ? "" : value.toString());\r
  62                 return this;\r
  63         }\r
  64 }\r
  65 \r
  66 public class RowHeaderExample extends JFrame {\r
  67 \r
  68         public RowHeaderExample() {\r
  69 \r
  70                 super("Row Header Example");\r
  71                 setSize(300, 150);\r
  72 \r
  73                 ListModel lm = new AbstractListModel() {\r
  74 \r
  75                         public int getSize() {\r
  76                                 return 500;\r
  77                         }\r
  78 \r
  79                         public Object getElementAt(int index) {\r
  80                                 return "" + index;\r
  81                         }\r
  82 \r
  83                 };\r
  84 \r
  85                 final DefaultTableModel dm = new DefaultTableModel(lm.getSize(), 500);\r
  86                 for(int i=0;i<10;i++) {\r
  87                         for(int j=0;j<10;j++) {\r
  88                                 dm.setValueAt(new Object () { private Integer i = new Integer((int)(20 *Math.random())); } , i, j);\r
  89                         }\r
  90                 }\r
  91 \r
  92                 dm.addTableModelListener(new TableModelListener() {\r
  93 \r
  94                         @Override\r
  95                         public void tableChanged(TableModelEvent e) {\r
  96 //                              System.out.println(e);\r
  97 //                              System.out.println(e.getColumn());\r
  98 //                              System.out.println(e.getFirstRow());\r
  99 //                              System.out.println(e.getLastRow());\r
 100 //                              System.out.println(e.getSource());\r
 101 //                              Object value = dm.getValueAt(e.getFirstRow(), e.getColumn());\r
 102 //                              System.out.println(value);\r
 103 //                              System.out.println(value.getClass());\r
 104 //                              Object value2 = dm.getValueAt(e.getFirstRow(), e.getColumn() + 1);\r
 105 //                              System.out.println(value2);\r
 106 //                              System.out.println(value2.getClass());\r
 107                         }\r
 108 \r
 109                 });\r
 110 \r
 111                 JTable table = new JTable(dm);\r
 112                 new ExcelAdapter(table);\r
 113                 table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);\r
 114 \r
 115                 table.setColumnSelectionAllowed(true);\r
 116                 table.addRowSelectionInterval(1, 3);\r
 117                 table.addColumnSelectionInterval(1, 3);\r
 118 \r
 119                 JList rowHeader = new JList(lm);\r
 120                 rowHeader.setFixedCellWidth(50);\r
 121 \r
 122                 rowHeader.setFixedCellHeight(table.getRowHeight() /*\r
 123         + table.getRowMargin() + table.getIntercellSpacing().height*/);\r
 124 \r
 125                 rowHeader.setCellRenderer(new RowHeaderRenderer(table));\r
 126 \r
 127                 JScrollPane scroll = new JScrollPane(table);\r
 128                 scroll.setRowHeaderView(rowHeader);\r
 129                 getContentPane().add(scroll, BorderLayout.CENTER);\r
 130         }\r
 131 \r
 132         /**\r
 133          * ExcelAdapter enables Copy-Paste Clipboard functionality on JTables.\r
 134          * The clipboard data format used by the adapter is compatible with\r
 135          * the clipboard format used by Excel. This provides for clipboard\r
 136          * interoperability between enabled JTables and Excel.\r
 137          */\r
 138         public class ExcelAdapter implements ActionListener\r
 139         {\r
 140                 private String rowstring,value;\r
 141                 private Clipboard system;\r
 142                 private StringSelection stsel;\r
 143                 private JTable jTable1 ;\r
 144                 /**\r
 145                  * The Excel Adapter is constructed with a\r
 146                  * JTable on which it enables Copy-Paste and acts\r
 147                  * as a Clipboard listener.\r
 148                  */\r
 149                 public ExcelAdapter(JTable myJTable)\r
 150                 {\r
 151                         jTable1 = myJTable;\r
 152                         KeyStroke copy = KeyStroke.getKeyStroke(KeyEvent.VK_C,ActionEvent.CTRL_MASK,false);\r
 153                         // Identifying the copy KeyStroke user can modify this\r
 154                         // to copy on some other Key combination.\r
 155                         KeyStroke paste = KeyStroke.getKeyStroke(KeyEvent.VK_V,ActionEvent.CTRL_MASK,false);\r
 156                         // Identifying the Paste KeyStroke user can modify this\r
 157                         //to copy on some other Key combination.\r
 158                         jTable1.registerKeyboardAction(this,"Copy",copy,JComponent.WHEN_FOCUSED);\r
 159                         jTable1.registerKeyboardAction(this,"Paste",paste,JComponent.WHEN_FOCUSED);\r
 160                         system = Toolkit.getDefaultToolkit().getSystemClipboard();\r
 161                 }\r
 162                 /**\r
 163                  * Public Accessor methods for the Table on which this adapter acts.\r
 164                  */\r
 165                 public JTable getJTable() {return jTable1;}\r
 166                 public void setJTable(JTable jTable1) {this.jTable1=jTable1;}\r
 167                 /**\r
 168                  * This method is activated on the Keystrokes we are listening to\r
 169                  * in this implementation. Here it listens for Copy and Paste ActionCommands.\r
 170                  * Selections comprising non-adjacent cells result in invalid selection and\r
 171                  * then copy action cannot be performed.\r
 172                  * Paste is done by aligning the upper left corner of the selection with the\r
 173                  * 1st element in the current selection of the JTable.\r
 174                  */\r
 175                 public void actionPerformed(ActionEvent e)\r
 176                 {\r
 177                         if (e.getActionCommand().compareTo("Copy")==0)\r
 178                         {\r
 179                                 StringBuffer sbf=new StringBuffer();\r
 180                                 // Check to ensure we have selected only a contiguous block of\r
 181                                 // cells\r
 182                                 int numcols=jTable1.getSelectedColumnCount();\r
 183                                 int numrows=jTable1.getSelectedRowCount();\r
 184                                 int[] rowsselected=jTable1.getSelectedRows();\r
 185                                 int[] colsselected=jTable1.getSelectedColumns();\r
 186                                 if (!((numrows-1==rowsselected[rowsselected.length-1]-rowsselected[0] &&\r
 187                                                 numrows==rowsselected.length) &&\r
 188                                                 (numcols-1==colsselected[colsselected.length-1]-colsselected[0] &&\r
 189                                                                 numcols==colsselected.length)))\r
 190                                 {\r
 191                                         JOptionPane.showMessageDialog(null, "Invalid Copy Selection",\r
 192                                                         "Invalid Copy Selection",\r
 193                                                         JOptionPane.ERROR_MESSAGE);\r
 194                                         return;\r
 195                                 }\r
 196                                 for (int i=0;i<numrows;i++)\r
 197                                 {\r
 198                                         for (int j=0;j<numcols;j++)\r
 199                                         {\r
 200                                                 sbf.append(jTable1.getValueAt(rowsselected[i],colsselected[j]));\r
 201                                                 if (j<numcols-1) sbf.append("\t");\r
 202                                         }\r
 203                                         sbf.append("\n");\r
 204                                 }\r
 205                                 stsel  = new StringSelection(sbf.toString());\r
 206                                 system = Toolkit.getDefaultToolkit().getSystemClipboard();\r
 207                                 system.setContents(stsel,stsel);\r
 208                         }\r
 209                         if (e.getActionCommand().compareTo("Paste")==0)\r
 210                         {\r
 211                                 int startRow=(jTable1.getSelectedRows())[0];\r
 212                                 int startCol=(jTable1.getSelectedColumns())[0];\r
 213                                 try\r
 214                                 {\r
 215                                         String trstring= (String)(system.getContents(this).getTransferData(DataFlavor.stringFlavor));\r
 216                                         StringTokenizer st1=new StringTokenizer(trstring,"\n");\r
 217                                         for(int i=0;st1.hasMoreTokens();i++)\r
 218                                         {\r
 219                                                 rowstring=st1.nextToken();\r
 220                                                 StringTokenizer st2=new StringTokenizer(rowstring,"\t");\r
 221                                                 for(int j=0;st2.hasMoreTokens();j++)\r
 222                                                 {\r
 223                                                         value=(String)st2.nextToken();\r
 224                                                         if (startRow+i< jTable1.getRowCount()  &&\r
 225                                                                         startCol+j< jTable1.getColumnCount())\r
 226                                                                 jTable1.setValueAt(value,startRow+i,startCol+j);\r
 227                                                 }\r
 228                                         }\r
 229                                 }\r
 230                                 catch(Exception ex){ex.printStackTrace();}\r
 231                         }\r
 232                 }\r
 233         }\r
 234 \r
 235 \r
 236         public static void main(String[] args) {\r
 237                 RowHeaderExample frame = new RowHeaderExample();\r
 238                 frame.addWindowListener(new WindowAdapter() {\r
 239                         public void windowClosing(WindowEvent e) {\r
 240                                 System.exit(0);\r
 241                         }\r
 242                 });\r
 243                 frame.setVisible(true);\r
 244         }\r
 245 }