Exemplo n.º 1
0
 /**
  * This method is activated on the Keystrokes we are listening to in this implementation. Here it
  * listens for Copy and Paste ActionCommands. Selections comprising non-adjacent cells result in
  * invalid selection and then copy action cannot be performed. Paste is done by aligning the upper
  * left corner of the selection with the 1st element in the current selection of the JTable.
  */
 public void actionPerformed(ActionEvent e) {
   if (e.getActionCommand().compareTo("Copy") == 0) {
     StringBuffer sbf = new StringBuffer();
     // Check to ensure we have selected only a contiguous block of
     // cells
     int numcols = jTable1.getSelectedColumnCount();
     int numrows = jTable1.getSelectedRowCount();
     int[] rowsselected = jTable1.getSelectedRows();
     int[] colsselected = jTable1.getSelectedColumns();
     if (!((numrows - 1 == rowsselected[rowsselected.length - 1] - rowsselected[0]
             && numrows == rowsselected.length)
         && (numcols - 1 == colsselected[colsselected.length - 1] - colsselected[0]
             && numcols == colsselected.length))) {
       JOptionPane.showMessageDialog(
           null, "Invalid Copy Selection", "Invalid Copy Selection", JOptionPane.ERROR_MESSAGE);
       return;
     }
     for (int i = 0; i < numrows; i++) {
       for (int j = 0; j < numcols; j++) {
         sbf.append(jTable1.getValueAt(rowsselected[i], colsselected[j]));
         if (j < numcols - 1) sbf.append("\t");
       }
       sbf.append("\n");
     }
     stsel = new StringSelection(sbf.toString());
     system = Toolkit.getDefaultToolkit().getSystemClipboard();
     system.setContents(stsel, stsel);
   }
   if (e.getActionCommand().compareTo("Paste") == 0) {
     System.out.println("Trying to Paste");
     int startRow = (jTable1.getSelectedRows())[0];
     int startCol = (jTable1.getSelectedColumns())[0];
     try {
       String trstring =
           (String) (system.getContents(this).getTransferData(DataFlavor.stringFlavor));
       System.out.println("String is:" + trstring);
       StringTokenizer st1 = new StringTokenizer(trstring, "\n");
       for (int i = 0; st1.hasMoreTokens(); i++) {
         rowstring = st1.nextToken();
         StringTokenizer st2 = new StringTokenizer(rowstring, "\t");
         for (int j = 0; st2.hasMoreTokens(); j++) {
           value = (String) st2.nextToken();
           if (startRow + i < jTable1.getRowCount() && startCol + j < jTable1.getColumnCount())
             jTable1.setValueAt(value, startRow + i, startCol + j);
           System.out.println(
               "Putting " + value + "at row = " + startRow + i + "column = " + startCol + j);
         }
       }
     } catch (Exception ex) {
       ex.printStackTrace();
     }
   }
 }
Exemplo n.º 2
0
    /**
     * Create a Transferable to use as the source for a data transfer.
     *
     * @param c The component holding the data to be transfered. This argument is provided to enable
     *     sharing of TransferHandlers by multiple components.
     * @return The representation of the data to be transfered.
     */
    protected Transferable createTransferable(JComponent c) {
      Object[] values = null;
      if (c instanceof JList) {
        values = ((JList) c).getSelectedValues();
      } else if (c instanceof JTable) {
        JTable table = (JTable) c;
        int[] rows = table.getSelectedRows();
        if (rows != null) {
          values = new Object[rows.length];
          for (int i = 0; i < rows.length; i++) {
            values[i] = table.getValueAt(rows[i], 0);
          }
        }
      }
      if (values == null || values.length == 0) {
        return null;
      }

      StringBuffer plainBuf = new StringBuffer();
      StringBuffer htmlBuf = new StringBuffer();

      htmlBuf.append("<html>\n<body>\n<ul>\n");

      for (Object obj : values) {
        String val = ((obj == null) ? "" : obj.toString());
        plainBuf.append(val + "\n");
        htmlBuf.append("  <li>" + val + "\n");
      }

      // remove the last newline
      plainBuf.deleteCharAt(plainBuf.length() - 1);
      htmlBuf.append("</ul>\n</body>\n</html>");

      return new FileTransferable(plainBuf.toString(), htmlBuf.toString(), values);
    }
Exemplo n.º 3
0
 public void jTable1_keyPressed(KeyEvent e) {
   if (e.getKeyCode() == 127) {
     int[] selected = jTable1.getSelectedRows();
     for (int i = selected.length - 1; i >= 0; i--) {
       model.removeRow(selected[i]);
       model.fireTableDataChanged();
     }
   }
 }