基于TableCell值的JTable行hightlighter [英] JTable row hightlighter based on value from TableCell
问题描述
因为我读到不可能编码我的纳瓦霍语言
as I read that not possible to Encode my Navajo language
如何只将备用/条纹颜色转换为JTable（例如@camickr）
finging the way how to only alternate/striped Color into JTable (example @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 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。如何根据特定值 TableColumn （例如名称为DealId的最后一列）的值来高亮显示 TableRows 。我试图用行 - 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简单事情，如何检查另一行中是否存在重复值（始终严格按顺序排列）在图片中）。不知道如何实现简单的公式
I have a JTable which contains some market trades (better for understanding by reason my poor English skills), but some of deals has only one leg, but another (for example vanilla Cross Currency Swap) could have two legs. How is possible to hightlighting TableRows based on value from specifics TableColumn (for example last column with name DealId). I tried to check row with row - 1 && row + 1, but my empty head generated lots of codesRow, to much for idea how to stop complicated simple simple things, how to check if there exist duplicate value in another row (always with strict ordering as captured in the pictures). No idea how to implements simple formula for that
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 设置为 TableCell 进入 prepareRenderer ，
推荐答案
如何将TableCell的对齐方式设置为prepareRenderer，
how to set Alignment for TableCell into 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：
This should NOT be done in the prepareRenderer code. This property should be set in the renderer for the class or for the column because it only applies to a specific class or renderer. Instead use:
table.setPreferredScrollableViewportSize(table.getPreferredSize());
DefaultTableCellRenderer stringRenderer = (DefaultTableCellRenderer)table.getDefaultRenderer(String.class);
stringRenderer.setHorizontalAlignment( SwingConstants.CENTER );
对于突出显示的代码，我使用的代码假定 dealld 值对于给定的一组交易是唯一的：
For the highlighting code I used code that assumes that the dealld value is unique for a given set of transactions:
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。
Note: It won't work if sorting is required.
这是另一种方法，即使需要排序也应该有效（但我没有对排序进行测试）;
Here is another approach that should work even if sorting is required (but I didn't test it with sorting);
@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;
}
这篇关于基于TableCell值的JTable行hightlighter的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
