Question

我有一个表格渲染器，根据第11列的内容，我的表格中的一行是红色的。这样工作正常，代码如下：

tableR = new JTable(modelR)
{
@Override
public Component prepareRenderer(TableCellRenderer renderer, int row, int column) {
Component c = super.prepareRenderer(renderer, row, column);


Font myFont = new Font("Arial",Font.PLAIN,10);
Font myFont1 = new Font("Arial", Font.BOLD,10);
int rowModelId = convertRowIndexToModel( row );


if (!isRowSelected(row)) {
                    if (tableR.getColumnCount() >= 0) {
                   String type = (String) getModel().getValueAt(rowModelId, 11);
                        c.setBackground("0.0".equals(type) ? Color.RED : Color.WHITE);
                        c.setForeground("0.0".equals(type) ? Color.WHITE : Color.BLACK);
                        c.setFont("0.0".equals(type) ? myFont1: myFont);

                    }

 }  

 return c;

}

我现在想要在第12列中另外实现相同的功能，这样如果满足条件，在这种情况下“u”表示特定行为黄色。我的尝试在下面，但现在表中根本没有颜色出现。除此之外，如果第11列和第12列是彩色的，那么在这种情况下会发生什么？

这是我的尝试去：

tableR = new JTable(modelR)
{
@Override
public Component prepareRenderer(TableCellRenderer renderer, int row, int column) {
Component c = super.prepareRenderer(renderer, row, column);


Font myFont = new Font("Arial",Font.PLAIN,10);
Font myFont1 = new Font("Arial", Font.BOLD,10);
int rowModelId = convertRowIndexToModel( row );
int rowModelId1 = convertRowIndexToModel( row );

if (!isRowSelected(row)) {
                    if (tableR.getColumnCount() >= 0) {
                              String type = (String) getModel().getValueAt(rowModelId, 11);
                        c.setBackground("0.0".equals(type) ? Color.RED : Color.WHITE);
                        c.setForeground("0.0".equals(type) ? Color.WHITE : Color.BLACK);
                        c.setFont("0.0".equals(type) ? myFont1: myFont);

                    }
                         if (tableR.getColumnCount() >= 0) {
                              String type = (String) getModel().getValueAt(rowModelId1, 12);
                        c.setBackground("u".equals(type) ? Color.YELLOW : Color.WHITE);
                        c.setForeground("u".equals(type) ? Color.WHITE : Color.BLACK);
                        c.setFont("u".equals(type) ? myFont1: myFont);

                    }


 }  


 return c;

}

Answer 1

根据您的有些怪异代码段，我创建了以下内容。不能说我理解你为什么要在第11栏和第11栏上添加颜色。 12个值......

注意：

使用JTable.getValueAt代替TableModel.getValueAt
使用JTable.convertColumnIndexToView因为我认为第11栏和第11栏12你的意思是模型中的那些，而不是视图（视图和模型索引在视图中的列周围移动时会发生变化）

import java.awt.*;
import javax.swing.*;
import javax.swing.table.TableCellRenderer;

public class example {
    static Font myFont = new Font("Arial",Font.PLAIN,10);
    static Font myFont1 = new Font("Arial", Font.BOLD,10);
    private static Component createTable() {
        Object rowData[][] = new Object[][]{
            {"0.0","0.0","0.0","0.0","0.0","0.0","0.0","0.0","0.0","0.0","0.0","0.0","0.0"},
            {"b","6.70","q","l","b","6.70","q","l","b","6.70","q","l","p"},
            {"0.0","0.0","0.0","0.0","0.0","0.0","0.0","0.0","0.0","0.0","0.0","0.0","0.0"},
            {"u","u","u","u","u","u","u","u","u","u","u","u","u"},
            {"b","6.70","q","l","b","6.70","q","l","b","6.70","q","l","p"},
            {"u","u","u","u","u","u","u","u","u","u","u","u","u"},          
        };
        Object colData[] = {"Col1","Col2","Col3","Col4","Col5","Col6","Col7","Col8","Col9","Col10","Col11","Col12","Col13"};
        return new JTable( rowData, colData ) {
            @Override
            public Component prepareRenderer(TableCellRenderer renderer, int row, int column) {
                Component c = super.prepareRenderer(renderer, row, column);
                if (isRowSelected(row) || getColumnCount()==0) 
                    return c;

                String type = (String) getValueAt(row, convertColumnIndexToView( 11 ));
                if("0.0".equals(type))
                {
                    c.setBackground(Color.RED);
                    c.setForeground(Color.WHITE);
                    c.setFont(myFont1);
                    return c;
                }               
                type = (String) getValueAt( row, convertColumnIndexToView( 12 ) );
                if("u".equals(type))
                {
                    c.setBackground(Color.YELLOW);
                    c.setForeground(Color.WHITE);
                    c.setFont(myFont1);
                    return c;
                }
                c.setBackground(Color.WHITE);
                c.setForeground(Color.BLACK);
                c.setFont(myFont);
                return c;
            }
        };
    }
    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                JFrame f = new JFrame();
                f.setLayout(new BorderLayout());
                f.add(new JScrollPane(createTable()), BorderLayout.CENTER);
                f.setSize(500, 500);
                f.setVisible(true);
            }
        });
    }
}

结果：

Answer 2

tableR = new JTable(modelR) {
    @Override
    public Component prepareRenderer(TableCellRenderer renderer, int row, int column) {
        Component c = super.prepareRenderer(renderer, row, column);
        Font myFont = new Font("Arial",Font.PLAIN,10);
        Font myFont1 = new Font("Arial", Font.BOLD,10);
        int rowModelId = convertRowIndexToModel( row );
        int rowModelId1 = convertRowIndexToModel( row );
    if (!isRowSelected(row)) {
        if (tableR.getColumnCount() >= 0) {
            String type = (String) getModel().getValueAt(rowModelId1, 12);
            if("u".equals(type)) {
                c.setBackground(Color.YELLOW);
                c.setForeground(Color.WHITE);
                c.setFont(myFont1);
                return c;
            }
            type = (String) getModel().getValueAt(rowModelId, 11);
            if("0.0".equals(type)) {
                c.setBackground(Color.RED);
                c.setForeground(Color.WHITE);
                c.setFont(myFont1);
                return c;
            }
        }
        c.setBackground(Color.WHITE);
        c.setForeground(Color.BLACK);
        c.setFont(myFont);
    }
    return c;
}
}

你走了，我希望这能解决它

表格渲染器，其中有2个if语句

2 个答案: