JTable行突出显示基于表格单元格中的值
因为我读到不可能编码我的纳瓦霍语言
如何仅将颜色交替/条带化为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，而另一条（例如香草交叉货币掉期）可能有两条腿。如何根据特定TableRows的值（例如名称为DealId的最后一列）高亮显示TableColumn。我尝试用row检查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，如何检查另一行中是否存在重复值（总是严格按照图片中的顺序排列）。不知道如何实现那个
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Alignment的{{1}}设置为TableCell，
2 个答案:
答案 0 :(得分：4)
如何将TableCell的对齐方式设置为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<Object, Color> rowColor = new HashMap<Object, Color>();
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，它将无效。
这是另一种方法，即使需要排序也应该有效（但我没有通过排序对其进行测试）;
@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;
}
答案 1 :(得分：2)
这是星期天，天哪，所以无法抗拒显示SwingX版本。这与@camickr 2nd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ui交替条带颜色（以及切换LAF时的更新）
- 内置荧光笔支持，无需对表进行子类化，也不需要关心渲染器的错误行为
- 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));
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