作業部屋の使い方を試しています。
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| 1 | +// http://ateraimemo.com/Swing/CheckedRowColor.html | |
| 2 | +// JTableのセルにJCheckBoxを表示して行背景色を変更 | |
| 3 | + | |
| 4 | +package sample01; | |
| 5 | +//-*- mode:java; encoding:utf-8 -*- | |
| 6 | +// vim:set fileencoding=utf-8: | |
| 7 | +//http://ateraimemo.com/Swing/CheckedRowColor.html | |
| 8 | +import java.awt.*; | |
| 9 | +import javax.swing.*; | |
| 10 | +import javax.swing.event.*; | |
| 11 | +import javax.swing.table.*; | |
| 12 | + | |
| 13 | +public final class MainPanel extends JPanel { | |
| 14 | + private static final int BOOLEAN_COLUMN = 2; | |
| 15 | + private static String[] columnNames = {"String", "Number", "Boolean"}; | |
| 16 | + private static Object[][] data = { | |
| 17 | + {"aaa", 1, false}, {"bbb", 20, false}, | |
| 18 | + {"ccc", 2, false}, {"ddd", 3, false}, | |
| 19 | + {"aaa", 1, false}, {"bbb", 20, false}, | |
| 20 | + {"ccc", 2, false}, {"ddd", 3, false}, | |
| 21 | + }; | |
| 22 | + | |
| 23 | + private final DefaultTableModel model = new DefaultTableModel(data, columnNames) { | |
| 24 | + @Override | |
| 25 | + public Class<?> getColumnClass(int column) { | |
| 26 | + return getValueAt(0, column).getClass(); | |
| 27 | + } | |
| 28 | + @Override | |
| 29 | + public boolean isCellEditable(int row, int col) { | |
| 30 | + return col == BOOLEAN_COLUMN; | |
| 31 | + } | |
| 32 | + }; | |
| 33 | + | |
| 34 | + public MainPanel() { | |
| 35 | + super(new BorderLayout()); | |
| 36 | + final JTable table = makeTable(model); | |
| 37 | + //TEST: final JTable table = makeTable2(model); | |
| 38 | + model.addTableModelListener(new TableModelListener() { | |
| 39 | + @Override | |
| 40 | + public void tableChanged(TableModelEvent e) { | |
| 41 | + if (e.getType() == TableModelEvent.UPDATE) { | |
| 42 | + //System.out.println("TableModel: tableChanged"); | |
| 43 | + rowRepaint(table, table.convertRowIndexToView(e.getFirstRow())); | |
| 44 | + } | |
| 45 | + } | |
| 46 | + }); | |
| 47 | + table.setAutoCreateRowSorter(true); | |
| 48 | + table.setFillsViewportHeight(true); | |
| 49 | + table.setShowGrid(false); | |
| 50 | + table.setIntercellSpacing(new Dimension()); | |
| 51 | + table.setRowSelectionAllowed(true); | |
| 52 | + //table.setSurrendersFocusOnKeystroke(true); | |
| 53 | + //table.putClientProperty("JTable.autoStartsEdit", false); | |
| 54 | + add(new JScrollPane(table)); | |
| 55 | + setPreferredSize(new Dimension(320, 240)); | |
| 56 | + } | |
| 57 | + public static JTable makeTable(final DefaultTableModel model) { | |
| 58 | + return new JTable(model) { | |
| 59 | + @Override | |
| 60 | + public Component prepareEditor(TableCellEditor editor, int row, int column) { | |
| 61 | + Component cmp = super.prepareEditor(editor, row, column); | |
| 62 | + if (convertColumnIndexToModel(column) == BOOLEAN_COLUMN) { | |
| 63 | + //System.out.println("JTable: prepareEditor"); | |
| 64 | + JCheckBox c = (JCheckBox) cmp; | |
| 65 | + c.setBackground(c.isSelected() ? Color.ORANGE : getBackground()); | |
| 66 | + } | |
| 67 | + return cmp; | |
| 68 | + } | |
| 69 | + @Override | |
| 70 | + public Component prepareRenderer(TableCellRenderer renderer, int row, int column) { | |
| 71 | + Component c = super.prepareRenderer(renderer, row, column); | |
| 72 | + Boolean isChecked = (Boolean) model.getValueAt(convertRowIndexToModel(row), BOOLEAN_COLUMN); | |
| 73 | + c.setForeground(getForeground()); | |
| 74 | + c.setBackground(isChecked ? Color.ORANGE : getBackground()); | |
| 75 | + return c; | |
| 76 | + } | |
| 77 | + }; | |
| 78 | + } | |
| 79 | + public static JTable makeTable2(final DefaultTableModel model) { | |
| 80 | + final JTable table = new JTable(model); | |
| 81 | + TableColumnModel columns = table.getColumnModel(); | |
| 82 | + TableCellRenderer r = new RowColorTableRenderer(); | |
| 83 | + for (int i = 0; i < columns.getColumnCount(); i++) { | |
| 84 | + columns.getColumn(i).setCellRenderer(r); | |
| 85 | + } | |
| 86 | + return table; | |
| 87 | + } | |
| 88 | + static class RowColorTableRenderer extends DefaultTableCellRenderer { | |
| 89 | + @Override | |
| 90 | + public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { | |
| 91 | + Component c = super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column); | |
| 92 | + TableModel model = table.getModel(); | |
| 93 | + Boolean isChecked = (Boolean) model.getValueAt(table.convertRowIndexToModel(row), BOOLEAN_COLUMN); | |
| 94 | + c.setForeground(table.getForeground()); | |
| 95 | + c.setBackground(isChecked ? Color.ORANGE : table.getBackground()); | |
| 96 | + return c; | |
| 97 | + } | |
| 98 | + } | |
| 99 | + private static void rowRepaint(JTable table, int row) { | |
| 100 | + Rectangle r = table.getCellRect(row, 0, true); | |
| 101 | + //r.height = table.getRowHeight(); | |
| 102 | + r.width = table.getWidth(); | |
| 103 | + table.repaint(r); | |
| 104 | + } | |
| 105 | + | |
| 106 | + public static void main(String... args) { | |
| 107 | + EventQueue.invokeLater(new Runnable() { | |
| 108 | + @Override | |
| 109 | + public void run() { | |
| 110 | + createAndShowGUI(); | |
| 111 | + } | |
| 112 | + }); | |
| 113 | + } | |
| 114 | + public static void createAndShowGUI() { | |
| 115 | + try { | |
| 116 | + UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); | |
| 117 | + } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) { | |
| 118 | + ex.printStackTrace(); | |
| 119 | + } | |
| 120 | + JFrame frame = new JFrame("CheckedRowColor"); | |
| 121 | + frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); | |
| 122 | + frame.getContentPane().add(new MainPanel()); | |
| 123 | + frame.pack(); | |
| 124 | + frame.setLocationRelativeTo(null); | |
| 125 | + frame.setVisible(true); | |
| 126 | + } | |
| 127 | +} |