基于TableCell值的JTable行hightlighter

因为我读到不可能编码我的纳瓦霍语言

如何只将备用/条纹颜色转换成JTable（例如@camickr）

import java.awt.*; import javax.swing.*; import javax.swing.table.*; public class TableRowRenderingTip extends JPanel { private static final long serialVersionUID = 1L; public TableRowRenderingTip() { Object[] columnNames = {"Type", "Company", "Shares", "Price", "Boolean"}; Object[][] data = { {"Buy", "IBM", new Integer(1000), new Double(80.5), Boolean.TRUE}, {"Sell", "Dell", new Integer(2000), new Double(6.25), Boolean.FALSE}, {"Short Sell", "Apple", new Integer(3000), new Double(7.35), Boolean.TRUE}, {"Buy", "MicroSoft", new Integer(4000), new Double(27.50), Boolean.FALSE}, {"Short Sell", "Cisco", new Integer(5000), new Double(20), Boolean.TRUE} }; DefaultTableModel model = new DefaultTableModel(data, columnNames) { private static final long serialVersionUID = 1L; @Override public Class getColumnClass(int column) { return getValueAt(0, column).getClass(); } }; JTabbedPane tabbedPane = new JTabbedPane(); tabbedPane.addTab("Alternating", createAlternating(model)); add(tabbedPane); } private JComponent createAlternating(DefaultTableModel model) { JTable table = new JTable(model) { private static final long serialVersionUID = 1L; @Override public Component prepareRenderer(TableCellRenderer renderer, int row, int column) { Component c = super.prepareRenderer(renderer, row, column); if (!isRowSelected(row)) { // Alternate row color c.setBackground(row % 2 == 0 ? getBackground() : Color.LIGHT_GRAY); } return c; } }; table.setPreferredScrollableViewportSize(table.getPreferredSize()); return new JScrollPane(table); } public static void main(String[] args) { SwingUtilities.invokeLater(new Runnable() { @Override public void run() { createAndShowGUI(); } }); } public static void createAndShowGUI() { JFrame.setDefaultLookAndFeelDecorated(false); JFrame frame = new JFrame("Table Row Rendering"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.add(new TableRowRenderingTip()); frame.pack(); frame.setLocationRelativeTo(null); frame.setVisible(true); } } 

我有一个JTable ，其中包含一些市场交易（更好地理解我的英语技能不佳），但有些交易只有一条腿，但另一条（例如香草交叉货币掉期）可能有两条腿。 如何根据特定TableColumn值（例如名称为DealId的最后一列）高亮显示TableRows。 我试着用row - 1 && row + 1检查row row - 1 && row + 1 ，但我的空头生成了很多代码，很多想法如何停止复杂简单的事情，如何检查另一行是否存在重复值（总是严格的）在图片中捕获的排序）。 不知道如何实现简单的公式

图片展示：

从代码生成：

 import java.awt.*; import javax.swing.*; import javax.swing.table.*; public class TablePrepareRenderer extends JFrame { private static final long serialVersionUID = 1L; private Object[] columnNames = { "Buy/Sell", "Type", "SubType", "Ccy1", "Amount1", "Ccy2", "Amount2", "DealId"}; private Object[][] data = { {"Buy&Sell", "Ccy Swap", "A1", "EUR", new Double(1000000.00), "USD", new Double(1439000.00), 50}, {"Buy&Sell", "Ccy Swap", "A3", "USD", new Double(1438900.00), "EUR", new Double(1000000.00), 50}, {"Buy&Sell", "Ccy Swap", "A1", "EUR", new Double(500000.00), "CHF", new Double(550000.00), 350}, {"Buy&Sell", "Ccy Swap", "A1", "CHF", new Double(549800.00), "EUR", new Double(500000.00), 350}, {"Sell&Buy", "Ccy Swap", "A3", "USD", new Double(1000000.00), "EUR", new Double(749000.00), 2250}, {"Sell&Buy", "Ccy Swap", "A1", "EUR", new Double(748900.00), "USD", new Double(1000000.00), 2250}, {"Buy&Sell", "Ccy Swap", "A1", "GBP", new Double(1000000.00), "USD", new Double(1638100.00), 400}, {"Buy&Sell", "Ccy Swap", "A3", "USD", new Double(1638200.00), "GBP", new Double(1000000.00), 400}, {"Sell", "Ccy Spot", "A1", "AUD", new Double(343575.0), "EUR", new Double(250000.0), 11990}, {"Buy", "Ccy Spot", "A1", "EUR", new Double(100000.00), "JPY", new Double(1099000.00), 259}, {"Sell", "Ccy Fwd", "A3", "DKK", new Double(74889.00), "EUR", new Double(10000.00), 115439},}; private JTable table; public TablePrepareRenderer() { DefaultTableModel model = new DefaultTableModel(data, columnNames); table = new JTable(model) { private static final long serialVersionUID = 1L; @Override public Component prepareRenderer(TableCellRenderer renderer, int row, int column) { Component c = super.prepareRenderer(renderer, row, column); JComponent jc = (JComponent) c; /*if (!isRowSelected(row)) { c.setBackground(getBackground()); int modelRow = convertRowIndexToModel(row); String type = (String) getModel().getValueAt(modelRow, 0); if (("Buy".equals(type)) && !("Buy&Sell".equals(type))) { c.setBackground(Color.orange); } else if (("Sell".equals(type)) && !("Sell&Buy".equals(type))) { c.setBackground(Color.orange); } else if ("Buy&Sell".equals(type)) { c.setBackground(Color.yellow); } else if ("Sell&Buy".equals(type)) { c.setBackground(Color.yellow); } }*/ /*if (!isRowSelected(row)) { if (row == 0 ||row == 1||row == 4||row == 6||row == 7||row == 9||row == 10) { ((JComponent) c).setBackground(Color.orange); } else { ((JComponent) c).setBackground(Color.yellow); } }*/ if (!isRowSelected(row)) { if (row == 0 || row == 1 || row == 4 || row == 5 || row == 8 || row == 10) { ((JComponent) c).setBackground(Color.orange); } else { ((JComponent) c).setBackground(Color.yellow); } } if (column == 0 || column == 1 || column == 2 || column == 3 || column == 5) { //setHorizontalAlignment(javax.swing.SwingConstants.CENTER); //c.setHorizontalAlignment(javax.swing.SwingConstants.CENTER); //(JComponent) c.setHorizontalAlignment(javax.swing.SwingConstants.CENTER); } return c; } @Override public Class getColumnClass(int column) { switch (column) { case 0: return String.class; case 1: return String.class; case 2: return String.class; case 3: return String.class; case 4: return Double.class; case 5: return String.class; case 6: return Double.class; case 7: return Integer.class; } return null; } }; table.setPreferredScrollableViewportSize(table.getPreferredSize()); JScrollPane scrollPane = new JScrollPane(table); getContentPane().add(scrollPane); } public static void main(String[] args) { TablePrepareRenderer frame = new TablePrepareRenderer(); frame.setDefaultCloseOperation(EXIT_ON_CLOSE); frame.pack(); frame.setLocationRelativeTo(null); frame.setVisible(true); } } 

编辑：

如何将TableCell Alignment设置为prepareRenderer ，

Answer 1

如何将TableCell的Alignment设置为prepareRenderer，

这不应该在prepareRenderer代码中完成。 应在类的呈现器或列中设置此属性，因为它仅适用于特定的类或呈示器。 而是使用：

 table.setPreferredScrollableViewportSize(table.getPreferredSize()); DefaultTableCellRenderer stringRenderer = (DefaultTableCellRenderer)table.getDefaultRenderer(String.class); stringRenderer.setHorizontalAlignment( SwingConstants.CENTER ); 

对于突出显示代码，我使用的代码假定dealld值对于给定的一组事务是唯一的：

  private Map rowColor = new HashMap(); private Color nextColor = Color.ORANGE; @Override public Component prepareRenderer(TableCellRenderer renderer, int row, int column) { Component c = super.prepareRenderer(renderer, row, column); JComponent jc = (JComponent) c; if (isRowSelected(row)) return c; Object value = table.getValueAt(row, 7); Color background = rowColor.get(value); if (background != null) { c.setBackground( background ); } else { rowColor.put(value, nextColor); c.setBackground( nextColor ); nextColor = (nextColor == Color.ORANGE) ? Color.YELLOW : Color.ORANGE; } return c; } 

注意：如果需要排序，它将无法工作。

这是另一种方法，即使需要排序也应该工作（但我没有用排序测试它）;

  @Override public Component prepareRenderer(TableCellRenderer renderer, int row, int column) { Component c = super.prepareRenderer(renderer, row, column); JComponent jc = (JComponent) c; if (!isRowSelected(row)) { c.setBackground(getRowBackground(row)); } return c; } private Color getRowBackground(int row) { boolean isDark = true; Object previous = getValueAt(0, 7); for (int i = 1; i <= row; i++) { Object current = getValueAt(i, 7); if (! current.equals(previous)) { isDark = !isDark; previous = current; } } return isDark ? Color.ORANGE : Color.YELLOW; } 

Answer 2

这是星期天，天哪，所以无法抗拒显示SwingX版本。 它与@camickr第2版的逻辑相同，谢谢:-)

优点：

• 代码可以专注于逻辑，因为值检索处理排序/过滤/列自动移动
• 了解默认的ui交替条带颜色（以及切换LAF时的更新）
• 内置的荧光笔支持，无需对表进行子类化，也不需要关心渲染器的不当行为
• 容易添加额外的荧光笔（大喊大叫卖，卖，卖:-)

代码剪断：

 JXTable table = new JXTable(data, columnNames); HighlightPredicate predicate = new HighlightPredicate() { @Override public boolean isHighlighted(Component renderer, ComponentAdapter adapter) { if (adapter.row == 0) return false; return isOddValue(adapter); } private boolean isOddValue(ComponentAdapter adapter) { Object previous = adapter.getFilteredValueAt(0, 7); boolean odd = false; for (int i = 1; i <= adapter.row; i++) { Object current = adapter.getFilteredValueAt(i, 7); if (!previous.equals(current)) { odd = !odd; } previous = current; } return odd; } }; table.addHighlighter(new UIColorHighlighter(predicate));