/** * 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(); } } }
private String extractContent( DataGridPanel grid, String delimiter, boolean saveHeader, boolean ecloseWithDowbleQuotes) { JTable _table = grid.getTable(); int numcols = _table.getSelectedColumnCount(); int numrows = _table.getSelectedRowCount(); if (numcols > 0 && numrows > 0) { StringBuffer sbf = new StringBuffer(); int[] rowsselected = _table.getSelectedRows(); int[] colsselected = _table.getSelectedColumns(); if (saveHeader) { // put header name list for (int j = 0; j < numcols; j++) { String text = (String) _table .getTableHeader() .getColumnModel() .getColumn(colsselected[j]) .getHeaderValue(); sbf.append(text); if (j < numcols - 1) sbf.append(delimiter); } sbf.append("\n"); } // put content for (int i = 0; i < numrows; i++) { for (int j = 0; j < numcols; j++) { Object value = _table.getValueAt(rowsselected[i], colsselected[j]); String _value = ""; if (value != null) { _value = value.toString(); } if (ecloseWithDowbleQuotes) { sbf.append("\"").append(_value).append("\""); } else { sbf.append(_value); } if (j < numcols - 1) sbf.append(delimiter); } sbf.append("\n"); } // StringSelection stsel = new StringSelection(sbf.toString()); // Clipboard system = Toolkit.getDefaultToolkit().getSystemClipboard(); // system.setContents(stsel, stsel); return sbf.toString(); } return null; }